Radio resource assignment in control channel in wireless communication systems

Disclosed is radio resource assignment in control channel in wireless communication systems. A wireless communication device includes a transceiver coupled to a processor which configured to attempt to decode at least two combined control channel elements received at public transmission time intervals, and to attempt to decode a single control channel element of the at least two control channel elements if the attempt to decode the combined control channel elements is not successful.

Tone block allocation for orthogonal frequency division multiple access data unit

A method for transmitting a first field and one or more second fields is described. A number of devices in a group of multiple devices to which a first OFDMA data unit is to be transmitted is selected. A block allocation that indicates respective integer numbers of different tone blocks of a WLAN communication channel to be assigned to each device in the group of multiple devices is selected. A first field is encoded to indicate both the selected number of devices in the group and the selected block allocation. One or more second fields are encoded to indicate a respective device identifier for each device in the group of multiple devices. The first field and the one or more second fields are transmitted to each device in the group of multiple devices.

Systems and methods for performing iterative interference cancellation

Systems and methods are provided for performing iterative interference cancellation. The systems and methods include receiving a plurality of codewords and processing the plurality of codewords using a channel decoder to obtain a decoder output. The systems and methods further include determining, based on the decoder output, whether a stopping criterion is satisfied, and cancelling interference from the plurality of codewords based on the decoder output in response to determining that the stopping criterion is not satisfied.

SYSTEMS AND METHODS FOR IMPLEMENTING AN OFDMA LTF DESIGN FOR WIRELESS NETWORK COMMUNICATION

Systems, methods, and apparatuses are disclosed herein for aligning HE-LTFs corresponding to a plurality of users by determining a respective number of spatial streams corresponding to each user, determining a highest respective number of spatial streams of the spatial streams, and setting an alignment number of HE-LTF symbols to be equal to or larger than the highest respective number of spatial streams. For each respective user, a respective matrix of HE-LTF symbols corresponding to the respective number of spatial streams of the respective user is selected, and it is determined whether the respective matrix of HE-LTF symbols has fewer symbols than the alignment number. In response to determining that the respective matrix of HE-LTF symbols has fewer symbols than the alignment number, padding symbols may be added to the respective matrix to yield a number of HE-LTF symbols in the respective matrix that corresponds to the alignment number.

Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network

A wireless communication terminal (200) that communicates on a plurality of sub-carriers divided into a plurality of frequency bands, wherein each frequency band includes at least one sub-carrier. The terminal successively generates channel quality indicator (CQI) measurement information reports based on CQI measurements, wherein each report includes non-differential channel quality indicator measurement information for at least one of the frequency bands and differential channel quality indicator measurement information for all other frequency bands.

SYSTEMS AND METHODS FOR PROVIDING RESOURCE SIGNALING WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN)

Embodiments described herein provide a method for resource unit signaling with reduced data bits in a wireless local area network. At a wireless transceiver, a data frame may be obtained for transmission. The data frame includes a first preamble portion and a second preamble portion compliant with a wireless local area network communication protocol. When an available resource unit for transmitting the data frame is less than an allowed bandwidth, the first preamble portion and the second preamble portion may be configured with resource unit signaling bits. When the available resource unit is greater than or equal to the allowed bandwidth, the resource unit may be virtually divided into a plurality of channels. At least one of the first preamble portion and the second preamble portion may be configured with a first number of bits representing a number of users spatially multiplexed on a channel from the plurality of channels 1. A method for providing resource unit signaling with reduced data bits in a wireless local area network , the method comprising:obtaining, at a wireless transceiver, a data frame for transmission including a first preamble portion and a second preamble portion compliant with a wireless local area network communication protocol; 'configuring the first preamble portion and the second preamble portion with resource unit signaling bits;', 'when an available resource unit for transmitting the data frame is less than an allowed bandwidth virtually dividing the resource unit into a plurality of channels; and', 'configuring at least one of the first preamble portion and the second preamble portion with a first number of bits representing a number of users spatially multiplexed on a channel from the plurality of channels; and, 'when the available resource unit is greater than or equal to the allowed bandwidthtransmitting the data frame including the configured first preamble portion and the configured second preamble portion.2. The method of claim 1 , ...

Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network

A wireless communication terminal that communicates on a plurality of sub-carriers divided into a plurality of frequency bands, wherein each frequency band includes at least one sub-carrier. The terminal measures (310) a channel quality indicator (CQI) for a plurality of frequency bands, identifies (320) a subset of frequency bands for which the channel quality indicator has been measured based on a subset criterion, and transmits (330) a report identifying a subset of frequency bands for which a channel quality indicator has been measured or frequency bands not in the subset. In some embodiments, the report also includes a subset CQI value associated with at least the subset of frequency bands.

Auto-detection of repeated signals

Systems and techniques relating to repeated signal detection are described. A described technique includes receiving a signal including a first portion and a second portion, the first portion including a first received symbol and a second received symbol; detecting whether the first received symbol is repeated as the second received symbol using a maximum a posterior decision metric including a first component and a second component, the first component contributing to the decision metric in accordance with the first received symbol being repeated as the second received symbol, and the second component contributing to the decision metric in accordance with the first received symbol not being repeated as the second received symbol; determining a format based on whether or not the first received symbol was repeated; and processing the second portion of the signal in accordance with the format, as determined.

High efficiency orthogonal frequency division multiplexing (OFDM) physical layer (PHY)

In a method for generating a data unit for transmission via a communication channel, the data unit conforming to a first communication protocol, one or more orthogonal frequency division multiplexing (OFDM) symbols of the data unit are generated. Each OFDM symbol of the one or more OFDM symbols (i) occupies a first bandwidth, (ii) is generated with a first tone spacing, and (iii) includes a set of pilot tones. The first tone spacing is a fraction 1/N of a second tone spacing, the second tone spacing defined for the first bandwidth by a second communication protocol. The set of pilot tones includes a same number of pilot tones as defined for the first bandwidth by the second communication protocol. The data unit is generated to include the one or more OFDM symbols in a data portion of the data unit.

SYSTEMS AND METHODS FOR CROSS-CHANNEL SCHEDULING OF HIGH EFFICIENCY (HE) MULTI-USER (MU) FRAME TRANSMISSION

Embodiments described herein provide a method for cross-channel scheduling of high efficiency (HE) multi-user (MU) frame transmission. In some embodiments, channel information and client station information may be obtained for data transmission. An MU frame containing a data field of a first type and two data fields of a second type may be configured to carry scheduling information relating to one or more channels for the data transmission. It may be determined that a current scheduling setting of the two data fields of the second type leads to unbalanced payload between the one or more channels. The two data fields of the second type may then be adjusted for a balanced channel mapping, and the data field of the first type may be adjusted to reflect the balanced channel mapping. Data based on the adjusted data field of the first type and the adjusted two data fields of the second type may be transmitted via the one or more channels.

Interference Measurement Pilot Tones

The present disclosure includes systems and techniques relating to interference measurement pilot tones in communication systems. In some implementations, a method includes identifying, by a transmitting device, a pilot pattern for transmission in a plurality of orthogonal frequency-division multiplexing (OFDM) symbols over a wireless local area network (WLAN) channel, the pilot pattern including an interference measurement pilot tone, wherein the interference measurement pilot tone is located at a specified frequency and time location in the plurality of OFDM symbols, the interference measurement pilot tone including a null tone that facilitates a receiving device to measure interference; and transmitting, by the transmitting device, the pilot pattern in the plurality of OFDM symbols over the WLAN channel. The pilot pattern can further include a regular, nonzero pilot tone that facilitates the receiving device to measure a frequency drift or a phase noise.

Systems and methods for performing efficient blind decoding at a wireless receiver

Systems and methods for performing efficient blind decoding. A first plurality of decision metrics corresponding to a first repetition of periodic decoding information is stored. The first plurality of decision metrics is grouped into sequential portions. A plurality of combined versions of the sequential portions is stored into combining buffers arranged in sequence. Each combined version is associated with a different sequence of timing information. A first of the plurality of combined versions stored in a first of the combining buffers is combined with a second version of a second plurality of decision metrics that corresponds to a second repetition of the periodic decoding information. The second version is associated with timing information adjacent in the timing information sequence to the timing information associated with the first combined version. The data is decoded based on information in the combining buffers.

Multiple user allocation signaling in a wireless communication network

A respective primary sub-channel block is statically allocated to each of the two or more communication devices in an orthogonal frequency division multiple access (OFDMA) group of communication devices. The respective statically allocated primary sub-channel blocks remain allocated to the second communication devices for transmission of at least two PHY data units. At least some of remaining sub-channel blocks are dynamically allocated among the two or more communication devices for transmission of each of the at least two PHY data units. Indications of the respective sub-channel blocks allocated to the two or more communication devices. A physical layer (PHY) data unit is transmitted to the two or more communication devices or is received from the two or more communication devices. The PHY data unit includes respective orthogonal frequency division multiplexing (OFDM) data units transmitted using respective sub-channel blocks allocated to the two or more communication devices.

Sub-channel allocation in orthogonal frequency division multiplex WLAN

A method for simultaneous communication with multiple communication devices in a wireless local area network is described. Respective sub-channels of an orthogonal frequency division multiplexing (OFDM) communication channel are allocated to two or more second communication devices for simultaneous OFDM transmission to the two or more second communication devices, including allocating first and second sub-channels to first and second ones of the two or more second communication devices, respectively. Respective downlink OFDM data units are generated using the corresponding allocated sub-channels. The downlink OFDM data units are transmitted using the corresponding allocated sub-channels. At least first and second uplink OFDM data units transmitted by the respective second communication device in response to the corresponding downlink OFDM data unit are received. The first and second uplink OFDM data units are transmitted from the respective second communication device via the corresponding ...

Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network

Radio resource assignment in control channel in wireless communication systems

A method in a wireless communication device including receiving (410) a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines (420) at least two of the control channel elements, and decodes (430) the combined control channel elements.

Termination of Wireless Communication Uplnk Periods to Facilitate Reception of Other Wireless Communications

The present disclosure describes systems and techniques relating to wireless communications. A described system includes a first radio configured to wirelessly transmit to a first station in accordance with a first wireless communication technology via uplink periods that are scheduled by the first station; a second radio configured to wirelessly communicate with a second station in accordance with a second wireless communication technology; and a controller coupled with the first and second radios, the controller being configured to select for puncturing one or more of the uplink periods based on information about types of data to be transmitted respectively in the uplink periods, puncture, independently of the first station, the one or more selected uplink periods by causing the first radio to terminate transmissions to the first station during the selected uplink period(s), and cause the second radio to receive data from the second station during the selected uplink period(s). 1. A device comprising:a first radio configured to wirelessly transmit to a first station in accordance with a first wireless communication technology via uplink periods that are scheduled by the first station;a second radio configured to wirelessly communicate with a second station in accordance with a second wireless communication technology; anda controller coupled with the first radio and the second radio, wherein the controller is configured to select for puncturing one or more of the uplink periods based on information about types of data to be transmitted respectively in the uplink periods, wherein the controller is configured to puncture, independently of the first station, the one or more selected uplink periods by causing the first radio to terminate transmissions to the first station during the one or more selected uplink periods, and cause the second radio to receive data from the second station during the one or more selected uplink periods.2. The device of claim 1 , wherein ...

Method and apparatus for assessing a condition of a wireless channel in view of feedback under strong and sporadic interference received over the wireless channel

A wireless communication device including an interference module and a feedback generation module. The interference module is configured to detect interference on a communication channel, identify types of the interference detected on the communication channel, and provide information about the types of the interference detected on the communication channel. The feedback generation module is configured to receive a request, from a transmitter, for feedback about a condition of the communication channel, and, based on the request and the information about the types of the interference detected on the communication channel, determine a measurement region of the communication channel, generate the feedback about the condition of the communication channel using measurements taken, by a receiver, in the measurement region as determined by the feedback generation module, and provide the feedback to the transmitter.

SYSTEMS AND METHODS FOR TRANSMITTING A PREAMBLE WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN)

Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. It may be determined that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration. The first preamble portion via beamforming may be transmitted based on a first beamforming matrix. When a transmission mode of the second preamble portion is beamforming, a second beamforming matrix may be generated based on the first beamforming matrix, each tone for the second preamble portion may be calculated based on the second beamforming matrix. Each calculated tone may be transmitted in accordance with the wireless local area network communication protocol. 1. A method for transmitting a preamble in accordance with a wireless local area network communication protocol , the method comprising:obtaining a data frame for transmission including a preamble compliant with the wireless local area network communication protocol;determining that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration;transmitting the first preamble portion via beamforming based on a first beamforming matrix; and generating a second beamforming matrix based on the first beamforming matrix;', 'calculating each tone for the second preamble portion based on the second beamforming matrix; and', 'transmitting each calculated tone in accordance with the wireless local area network communication protocol., 'when a transmission mode of the second preamble portion is beamforming2. The method of claim 1 , wherein:the first preamble portion includes a high efficiency short training field (HESTF), and a high efficiency long ...

Scheduling wireless communication systems

A method in a wireless communication network (100) wherein information is communicated in a frame structure wherein each frame includes multiple sub-frames, including grouping at least two wireless communication terminals in a group, assigning the group to less than all sub-frames constituting a communication frame, and assigning a radio resource assignment control channel of one or more assigned sub-frames to the group. The control channel is used to assign radio resources to one or more terminals of the group.

Synchronized interference mitigation scheme for heterogeneous wireless networks

In a method of synchronizing time domain multiplexing interference mitigation schemes of at least a first, second, and third wireless communication link within a first, second, and third network, respectively, a first set of parameters defining a first set of time intervals is determined. The first set of time intervals is utilized to schedule transmissions of the first wireless communication link to reduce interference with transmissions of the second wireless communication link. A second set of parameters defining a second set of time intervals is determined. The second set of time intervals is utilized to schedule transmissions of the first wireless communication link to reduce interference with transmissions of the third wireless communication link. The second set of parameters is determined based at least in part on at least one of the first set of parameters.

SOUNDING AND TONE BLOCK ALLOCATION FOR ORTHOGONAL FREQUENCY MULTIPLE ACCESS (OFDMA) IN WIRELESS LOCAL AREA NETWORKS

A first communication device receives sounding feedback packets from a plurality of second communication devices, wherein each sounding feedback packet includes one or more channel quality indicators (CQIs) corresponding to one or more groups of orthogonal frequency division multiplexing (OFDM) subcarriers associated with the corresponding second communication device. The first communication device allocates groups of subcarriers to second communication devices in a group for orthogonal frequency division multiple access (OFDMA) communication, and the first communication device uses the received CQIs to allocate the groups of subcarriers. The first communication device transmits at least one OFDMA data unit that includes respective data directed to the two or more second communication devices of the group, where the respective data are transmitted via respective groups of subcarriers that were allocated to the two or more second communication devices by the first communication device using the received CQIs. 1. A method for simultaneously communicating with multiple communication devices in a communication network , the method comprising:receiving, at a first communication device, sounding feedback packets from a plurality of second communication devices, wherein each sounding feedback packet includes (i) beamforming feedback to be used by the first communication device for beamforming to the corresponding second communication device, and (ii) one or more channel quality indicators (CQIs) corresponding to one or more groups of orthogonal frequency division multiplexing (OFDM) subcarriers associated with the corresponding second communication device;allocating, at the first communication device, groups of subcarriers to second communication devices in a group of second communication devices for orthogonal frequency division multiple access (OFDMA) communication, wherein the group of second communication devices includes two or more second communication devices of the ...

Channel Bonding Operations in Wireless Communications

Systems and techniques relating to wireless communications are described. A described technique includes sensing a group of channels for a channel contention operation that acquires two or more channels of the group of channels and detects a busy channel of the group of channels; determining a channel bonding indicator based on the channel contention operation; generating a preamble portion of a frame that includes the channel bonding indicator; generating a data portion of the frame, and transmitting the frame to one or more devices. Generating the preamble portion can include duplicating a legacy preamble on each of the acquired channels within the preamble portion. Generating the data portion can include setting first subcarriers that correspond to the acquired channels to data values, and setting second subcarriers that correspond to the busy channel to null values for at least a portion of the data portion of the frame.

METHODS AND APPARATUS FOR MITIGATING KNOWN INTERFERENCE

Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. At least one of a first pilot signal associated with the transmission source and a second pilot signal associated with the interfering source is determined. The first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source. Interference caused by the interference source is mitigated from the received signal using at least one of the first pilot signal and the second pilot signal.

Wireless power supply driving method and device for electric automobile or electric motorcycle

The invention discloses a wireless power supply driving method and a wireless power supply driving device for an electric automobile or an electric motorcycle, and belongs to electro-mechanics. Wireless power supply is completely used as driving energy; a receiving coil is added in a tire, a road for an electromagnetic oscillating and transmitting coil capable of wirelessly supplying power to the receiving coil in the tire is laid in the running route of the electric automobile or the electric motorcycle, the electromagnetic oscillating and transmitting coil embedded in the road transmits electrical energy, and the receiving coil arranged in the tire absorbs the electrical energy provided by the electromagnetic oscillating and transmitting coil through electromagnetic resonance; and through rectification, voltage stabilization and control of an external circuit module and through a wireless power supply receiving device, wireless transmission of the electrical energy from the pavement to ...

Radio resource assignment in control channel in wireless communication systems

Disclosed is radio resource assignment in control channel in wireless communication systems. A wireless communication network infrastructure entity is disclosed. The entity includes a transceiver coupled to a processor which is configured to make the transceiver send a composite control channel including at least two control channel elements. A first control channel element in the composite control channel includes a first version of a codeword which includes recourse assignment, and a second control channel element in the composite control channel includes a second version of a codeword which includes recourse assignment. The first control channel element includes a first subcarrier group and the second control channel element includes a second subcarrier group, and the first and second versions of the codeword are addressed to the same entity.

In-device coexistence of wireless communication technologies

In a method of operating a communication device that includes at least (i) a first network interface configured to operate according to a first communication protocol and (ii) a second network interface configured to operate according to a second communication protocol, the first communication interface is operated according to the first communication protocol. The first communication protocol defines a periodically repeating set of time intervals. One or more time intervals, from the set of time intervals, that meet a selection criteria are determined. The selection criteria is based on level of interference experienced by the first network interface. During the determined one or more time intervals, operation of the first network interface according to the first communication protocol is suspended, and operation of the second network interface according to the second communication protocol is enabled.

STRUCTURE FOR LOW-POWER-LOW-RATE DATA TRANSMISSION

Embodiments described herein provides a system for detecting data received in a low power low rate (LPLR) data frame format. The system includes a receiver and control circuitry. The receiver is configured to receive a data frame comprising an LPLR preamble portion and an LPLR data portion following the LPLR preamble portion. The LPLR preamble portion and the LPLR data portion occupy a bandwidth that is less than an allowed bandwidth. The control circuitry is configured to determine a mode of the data frame based on whether the data frame has an additional portion, and detect a data field in the LPLR preamble portion from the data frame based on the mode of the data frame. 1. A system for detecting data received in a low power low rate (LPLR) data frame format , comprising: 'wherein the LPLR preamble portion and the LPLR data portion occupy a bandwidth that is less than an allowed bandwidth; and', 'a receiver configured to receive a data frame comprising an LPLR preamble portion and an LPLR data portion following the LPLR preamble portion,'}control circuitry configured to determine a mode of the data frame based on whether the data frame has an additional portion, and detect a data field in the LPLR preamble portion from the data frame based on the mode of the data frame.2. The system of claim 1 , wherein the allowed bandwidth is 20 MHz and the LPLR data frame format is transmitted at a frequency above 1 GHz.3. The system of claim 1 , wherein the data format further comprises a legacy preamble portion that precedes the LPLR preamble portion and occupies the allowed bandwidth.4. The system of claim 1 , wherein the modes includes any of a mixed mode or a single mode claim 1 , and wherein the mixed mode includes a legacy preamble portion that precedes the LPLR preamble portion and occupies the allowed bandwidth claim 1 , and the single mode includes only the LPLR preamble portion and the LPLR data portion.5. The system of claim 1 , wherein the LPLR preamble portion and ...

Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network

Systems and methods for range extension by time repetition

Systems and methods are provided for extending the range of a transmitter by time repetition. The systems and methods may include receiving, at the transmitter block, and input of signals corresponding to data for transmission. The systems and methods may further include repeating the signals, reordering the signals, and operating on the signals in such a way that an output of signals from the transmitter block is dependent on a time-varying function and corresponds to the data for transmission.

Efficient search of precoders in precoded MIMO systems

A method includes calculating a set of first metrics using channel information and one or more precoders, where each of the first metrics corresponds to a respective set of a plurality of sets of codebook precoders, and selecting, based on the set of first metrics and a first selection criteria, a set of codebook precoders from the plurality of sets of codebook precoders. The method also includes, in response to selecting the set of codebook precoders, calculating a set of second metrics and selecting, based on (i) the set of second metrics and (ii) a second selection criteria, a codebook precoder from the selected set of codebook precoders. Each of the second metrics is calculated using a respective codebook precoder in the selected set of codebook precoders. The method also includes causing the selected codebook precoder to be applied to a signal to be transmitted to a communication device.

Method for treating nitrophenol-containing sodium salt wastewater

The invention discloses a method for treating nitrophenol-containing sodium salt wastewater. The method comprises the following steps of: sufficiently mixing nitrophenol-containing sodium salt wastewater with a dilute sulphuric acid, settling a mixture liquid into two layers in a settling pond, conveying the upper layer of salt-containing (sodium sulfate) wastewater into a biochemical treatment pool through the upper part of the settling pond to be treated, discharging the lower layer of water-containing grains (nitrophenol) wastewater into an organism collecting pool through the lower part of the settling pond, heating the water-containing grains inside the organism collecting pool through steam so as to convert the water-containing grains into a brown oil nitrophenol liquid and a small amount of black waste slag mixture, filtering, disposing the waste slag according to solid waste, feeding the oil-phase nitrophenol liquid into the collecting pool and storing up in a water seal manner.

Radio resource assignment in control channel in wireless communication systems

Disclosed is a radio resource assignment in control channel in wireless communication system. A wireless communication device including a transceiver coupled to a processor configured to combined at least two control channel elements which are part of a composite control channel received by the transceiver. The first control channel element of the at least two control channel elements comprises a first subcarrier group and the second control channel element of the at least two control channel elements comprises a second subcarrier group, wherein each control channel element only contains radio resource assignment information exclusively addressed to a single wireless communication entity. The device is further configured to obtain radio resource assignment information by decoding combined control channel elements.

Method and apparatus for generating a PHY data unit

A physical layer (PHY) preamble is generated, the PHY preamble defined by a first wireless communication protocol and including a first portion that corresponds to a legacy PHY preamble defined by a second, legacy wireless communication protocol. The PHY preamble also includes a second portion that is defined by the first wireless communication protocol. Error detection information is generated using a first field in the first portion of the PHY preamble. The second portion of the PHY preamble is generated to include the error detection information in a second field. The PHY data unit is generated so that the PHY data unit includes the PHY preamble.

Method and apparatus for controlling a transmit power level of a device in a wireless communications network

A wireless communication system includes a first wireless access point, and a first set of at least one first station in wireless communication with the first wireless access point. The first wireless access point controls power for communications with a first station in the set of at least one first station. The first wireless access point may control power in a time-domain, announcing a power level for use during a time window. The first wireless access point may control power levels in a frequency-domain, announcing different power levels for different frequency subchannels within a frequency channel. The wireless communication system may further include an additional wireless access point, and an additional set of at least one additional station in wireless communication with the additional wireless access point. The first and additional wireless access points control power to avoid interference between the first and additional wireless access points.

Methods and apparatus for mitigating known interference

Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. At least one of a first pilot signal associated with the transmission source and a second pilot signal associated with the interfering source is determined. The first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source. Interference caused by the interference source is mitigated from the received signal using at least one of the first pilot signal and the second pilot signal.

Short training field for WiFi

A method for generating an orthogonal frequency division multiplex (OFDM) data unit conforming to a first communication protocol for transmission via a communication channel is described. A first field is generated that conforms to a second communication protocol and has an integer number of OFDM symbols LN having a periodicity LP. A second field is generated that conforms to the first communication protocol, has an integer number of OFDM symbols HN having a periodicity HP, and is based on a frequency sequence having non-zero values at an integer interval K. The first and second fields are modulated using a tone spacing LTS and a tone spacing HTS, respectively. LTS is a multiple M of HTS. The OFDM data unit is generated to include a preamble including the first and second fields. The second field is generated such that HP is proportional to LP and K and inversely proportional to M.

Channel quality indication with filtered interference

A plurality of interference measurements are obtained at a first communication device. The interference measurements correspond to interference experienced by the first communication device. A filter is applied to the plurality of interference measurements to obtain a filtered interference measurement, wherein the filtered interference measurement is a function of a current interference measurement and one or more past interference measurements. A channel quality indicator (CQI) corresponding to a communication channel between the first communication device and a second communication device is determined based at least in part on the filtered interference measurement. The CQI is transmitted from the first communication device to the second communication device.

Methods and systems for transmitting hybrid beacon signals in WI-FI

Methods and systems are disclosed for transmitting high efficiency signals. The method includes creating a first signal and a second signal each comprising a plurality of information fields. The method includes determining respective intervals for repeated transmissions of each of the first signal and the second signal. The method includes determining whether a first transmission of the repeated transmissions of the first signal will be consecutively followed by a second transmission of the repeated transmissions of the second signal. The method includes adding scheduling information, based in part on determining the first transmission will be consecutively followed by the second transmission, indicating that the first transmission will be consecutively followed by the second transmission.

Sounding and tone block allocation for orthogonal frequency multiple access (OFDMA) in wireless local area networks

A first communication device obtains, for each second communication device of a plurality of second communication devices, one or more quality indicators corresponding to one or more sub-channel blocks of an orthogonal frequency division multiplexing (OFDM) communication channel associated with the second communication device. The first communication device selects, based on the quality indicators obtained for each of at least some of the second communication devices, a group of second communication devices for orthogonal frequency division multiple access (OFDMA) communication. The first communication device transmits, to the group of second communication devices, at least one OFDMA data unit that includes respective OFDM data units directed to the two or more second communication devices of the group. The respective OFDM data units are transmitted in respective sub-channel blocks allocated to the two or more second communication devices of the group.

Method and system for mitigating interference between different radio access technologies utilized by a communication device

Various methods and apparatus are disclosed for mitigating interference between communications between different radio access technologies in a communication device. Methods and apparatus include communicating between a first communication device and a second communication device according to a first communication protocol, and communicating between the first communication device and a third communication device according to a second communication protocol. The methods and apparatus further include determining a first time interval associated with when data is to be transmitted between the first communication device and the second communication device according to the first communications protocol. The methods and apparatus also include sending to the third communication device, an indication of a second time interval to prompt the third communication device not transmit to the first communication device during the second time interval, wherein the second time interval corresponds to the ...

Carrier frequency offset estimation

A method for use in a communication network is described. A plurality of data frames, transmitted simultaneously from respective ones of a plurality of second communication devices, are received at a first communication device via a multiple input, multiple output (MIMO) communication channel. A common carrier frequency offset (CFO) that is common to the data frames is estimated based on a legacy portion of a physical layer (PHY) preamble of the data frames. Each data frame is compensated based on the common CFO. Respective device-specific CFOs are estimated for channel estimation of the MIMO communication channel based on pilot tones of respective non-legacy training field portions of the data frames. The pilot tones have a non-overlapping allocation to the plurality of second communication devices and each device-specific CFO is specific to the corresponding second communication device. The respective non-legacy training field portions are compensated based on the corresponding device-specific ...

SUB-CHANNEL ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX WLAN

A first communication device receives one or more downlink orthogonal frequency division multiplexing (OFDM) data units transmitted by a second communication device via one or more respective sub-channels of an OFDM communication channel. The first communication device identifies the one or more sub-channels of the OFDM communication channel on which the one or more downlink OFDMA data units were transmitted, and determines whether each of the one or more sub-channels on which the one or more downlink OFDMA data units were transmitted is busy. The first communication device generates an uplink OFDM data unit for each sub-channel determined to be not busy, and transmits each of the uplink OFDM data units to the second communication device via the corresponding sub-channel. 1. A method for simultaneous communication with multiple communication devices in a wireless local area network , the method comprising:receiving, at a first communication device, one or more downlink orthogonal frequency division multiplexing (OFDM) data units transmitted by a second communication device via one or more respective sub-channels of an OFDM communication channel;identifying, by the first communication device, the one or more sub-channels of the OFDM communication channel on which the one or more downlink OFDMA data units were transmitted;determining, by the first communication device, whether each of the one or more sub-channels on which the one or more downlink OFDMA data units were transmitted is busy;generating, by the first communication device, an uplink OFDM data unit for each sub-channel determined to be not busy; andtransmitting each of the uplink OFDM data units to the second communication device via the corresponding sub-channel.2. The method of claim 1 , wherein the one or more downlink OFDM data units comprise synchronization frames and the one or more uplink OFDM data units comprise one or more aggregate media access control protocol data units (A-MPDU).3. The method of ...

SYSTEMS, APPARATUSES AND METHODS FOR A SIGNAL EXTENSION PADDING SCHEME

Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain. a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.

Method and apparatus for mitigating interference between wireless local area network (WLAN) communications and cellular communications

A wireless device including a first receiver and a second receiver. The first receiver is configured to receive a first signal transmitted on a first network using a first communication standard, and generate, in response to a signal strength of the first signal being greater than or equal to a predetermined threshold, first information about the first signal based on a first portion of the first signal. The second receiver is configured to receive a second signal transmitted on a second network using a second communication standard, and suppress interference from the first signal based on the first information about the first signal. The first communication standard is different from the second communication standard. The first receiver and the second receiver are co-located in the wireless device.

Signaling resource allocations in multi-user data units

A physical layer (PHY) preamble of a multi-user (MU) PHY data unit is generated. The PHY preamble is generated to include formatting information regarding the MU PHY data unit, including a field to be transmitted within a first individual communication channel among a plurality of individual communication channels that collectively span a bandwidth of a composite channel, each individual communication channel including a plurality of basic resource allocation (RA) units that collectively span a bandwidth of the individual communication channel. The field is generated to indicate one or more groupings of basic RA units, wherein at least one of the one or more groupings of basic RA which includes basic RA units of one or more other individual communication channels. A data portion of the MU PHY data unit is generated according to the formatting information in the PHY preamble, and the MU PHY data unit is generated to include the PHY preamble and the data portion.

Termination of wireless communication uplink periods to facilitate reception of other wireless communications

The present disclosure describes systems and techniques relating to wireless communications by devices that employ more than one wireless communication technology. According to an aspect of the described systems and techniques, a device includes: a first radio configured to communicate wirelessly with a first station in accordance with a first wireless communication technology, a second radio configured to communicate wirelessly with a second station in accordance with a second wireless communication technology, a controller configured to (i) terminate scheduled portions of time for sending communications from the first radio to the first station in favor of receiving communications from the second station to the second radio and (ii) restrict which of all available scheduled portions of time for sending communications from the first radio to the first station are provided for termination based on information about types of data transmitted in respective ones of the available scheduled ...

Orthogonal frequency division multiple access resource request

A method for transmitting a resource request for an orthogonal frequency division multiple access (OFDMA) transmission is described. A resource request field that indicates buffer information corresponding to queued media access control (MAC) protocol data units (MPDUs) that are queued for transmission by a first communication device is generated. The resource request field includes i) a scale factor subfield that indicates a scale value, and ii) a resource subfield that indicates a base resource value. A resource request MPDU including the resource request field is generated. The resource request MPDU is transmitted to a second communication device via a wireless communication channel to request an allocation of radio resources for the OFDMA transmission. The buffer information is i) a number of bytes indicated by the scale value multiplied by the base resource value, or ii) a transmission opportunity duration indicated by the scale value multiplied by the base resource value.

Methods and apparatus for increasing the number of training and data tones in wireless communications systems

Accordingly, systems and methods for managing power when the number of training and data tones are increased in a wireless communications system are provided. An L-SIG field is generated that includes a set of data and pilot tones, wherein the pilot tones are inserted between the data tones in the set of data and pilot tones. A plurality of training tones is added to the L-SIG field before and after the set of data and pilot tones. A symbol is generated that includes the L-SIG field, an L-LTF field, and a data field, wherein the training tones of the L-SIG field provide channel estimates for the data field. Power of the L-LTF field is managed relative to power of the L-SIG field in the generated symbol in a time domain.

Method and apparatus for determining access control parameters for devices in a wireless communications network

A wireless communication system includes a first access point, and at least one first station in communication with the first access point. The first access point controls access parameters for communications with a first station. The access parameters may include Enhanced Distributed Channel Access parameters such as a minimum or maximum contention window parameter, an arbitration interframe spacing parameter, or a transmit opportunity limit parameter. The access parameters also may include a channel bandwidth parameter, a transmit power parameter, or a data rate parameter such as a modulation and coding scheme parameter. Where the system includes an additional access point, and at least one additional station in communication with the additional access point, the first access point and the additional access point control access parameters to avoid interference between the first access point and the additional access point. A central controller may coordinate between the first and additional ...

Downlink signaling in a high efficiency wireless local area network (WLAN)

A method for generating a physical layer (PHY) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit; generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; generating the PHY data unit to include at least the preamble.

Hybrid automatic repeat request for wireless local area network

A method for transmission of media access control (MAC) protocol data units (MPDUs) over a wireless local area network (WLAN) communication channel is described. A first physical layer (PHY) data unit is generated at a first communication device. The first PHY data unit has i) a data field that includes a first MPDU to be transmitted to a second communication device, and ii) a PHY signal field that includes a transmission version field set to indicate an initial transmission of the first MPDU. The first PHY data unit is transmitted over the WLAN communication channel to the second communication device. It is determined, at the first communication device, whether a first acknowledgment to the first MPDU has been received from the second communication device. In response to determining that the first acknowledgment has not been received, a second PHY data unit is generated at the first communication device. The second PHY data unit has i) a data field that includes the first MPDU, and ii) ...

Scheduling wireless communication systems

The invention discloses scheduling wireless communication systems. A method in a wireless communication network (100) wherein information is communicated in a frame structure wherein each frame includes multiple sub-frames, including grouping at least two wireless communication terminals in a group, assigning the group to less than all sub-frames constituting a communication frame, and assigning a radio resource assignment control channel of one or more assigned sub-frames to the group. The control channel is used to assign radio resources to one or more terminals of the group.

Medium access protection and bandwidth negotiation in a wireless local area network

A first communication device transmits a first control frame to multiple second communication devices via a wireless communication medium, wherein the first control frame i) indicates to other communication devices that the wireless communication medium is reserved for a first time period, and ii) indicates that the second communication devices are requested to simultaneously transmit respective second control frames to the first communication device via the wireless communication medium, wherein the second control frames are to include information indicating to other communication devices that the wireless communication medium is reserved for a second time period that is a subset of the first time period.

Systems and methods for performing efficient blind decoding at a wireless receiver

Systems and methods for performing efficient blind decoding. A first plurality of decision metrics corresponding to a first repetition of periodic decoding information is stored. The first plurality of decision metrics is grouped into sequential portions. A plurality of combined versions of the sequential portions is stored into combining buffers arranged in sequence. Each combined version is associated with a different sequence of timing information. A first of the plurality of combined versions stored in a first of the combining buffers is combined with a second version of a second plurality of decision metrics that corresponds to a second repetition of the periodic decoding information. The second version is associated with timing information adjacent in the timing information sequence to the timing information associated with the first combined version. The data is decoded based on information in the combining buffers.

In-device coexistence of wireless communication technologies

A communication device includes a first network interface configured to communicate in a first network according to a first communication protocol, and a second network interface configured to communicate in a second network according to a second communication protocol. The first communication protocol defines a periodically repeating frame. The communication device predicts one or more subframes in the frame in which a serving base station in the first network will not transmit to the communication device because of poor channel conditions using at least one of i) measured channel quality in the one or more subframes, and ii) instructions sent to the communication device regarding channel quality measurements that are to be reported. In response to predicting the one or more subframes, operation of the first network interface is suspended during those subframes, and operation of the second network interface is enabled during at least one of those subframes.

Systems and methods for implementing protected access based on a null data packet in a wireless network

An access point including a generation module, a transceiver, and an acknowledgment module. The generation module is configured to generate a synchronization signal. The transceiver is configured to (i) transmit the synchronization signal to a station, (ii) receive a medium access control protocol data unit based on the synchronization signal during a transmit opportunity period for the station. The acknowledgment module is configured to generate an acknowledgment signal based on the reception of the medium access control protocol data unit. The synchronization signal or the acknowledgment signal includes a null data packet frame. The null data packet frame includes a legacy signal field. The legacy signal field comprises a length of a portion of the null data packet frame subsequent to the legacy signal field. The transceiver is configured to transmit the acknowledgment signal to the station.

Access point coordination for traffic control in wireless networks

A presence of interference between a first wireless network and a second wireless network is determined. Transmissions in the first wireless network are coordinated with transmissions in the second wireless network to reduce interference between the first wireless network and the second wireless network. Transmissions in the first wireless network are scheduled based on the coordinating to reduce interference between the first wireless network and the second wireless network.

CONTENTION-BASED ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

A communication device receives a trigger frame that is configured to: trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, and indicate a predetermined length of the contention-based uplink OFDMA transmission, wherein the predetermined length corresponds to contention-based uplink OFDMA transmissions. Responsive to receiving the trigger frame, the communication device generates a data unit having the predetermined length, and responsive to receiving the trigger frame, transmits the data unit as part of a contention-based uplink OFDMA transmission. 1. A method for communicating in a wireless communication network , the method comprising: trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, and', 'indicate a predetermined length of the contention-based uplink OFDMA transmission, wherein the predetermined length corresponds to contention-based uplink OFDMA transmissions;, 'receiving, at a communication device, a trigger frame configured to'}responsive to receiving the trigger frame, generating, at the communication device, a data unit having the predetermined length; andresponsive to receiving the trigger frame, transmitting, with the communication device, the data unit as part of a contention-based uplink OFDMA transmission.2. The method of claim 1 , wherein:a communication protocol, according to which the communication device is configured to operate, specifies that all contention-based uplink OFDMA transmissions are to have the predetermined length.3. The method of claim 1 , wherein:a communication protocol, according to which the communication device is configured to operate, specifies that all contention-based uplink OFDMA transmissions are to utilize one or more of i) a predetermined number of spatial streams, ii) a predetermined type of error correction coding, and iii) a predetermined modulation and coding scheme.4 ...

Radio resource assignment in control channel in wireless communication systems

A method in a wireless communication device including receiving (410) a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines (420) at least two of the control channel elements, and decodes (430) the combined control channel elements.

Synchronized Interference Mitigation Scheme for Heterogeneous Wireless Networks

In a method of synchronizing time domain multiplexing interference mitigation schemes of at least a first, second, and third wireless communication link within a first, second, and third network, respectively, a first set of parameters defining a first set of time intervals is determined. The first set of time intervals is utilized to schedule transmissions of the first wireless communication link to reduce interference with transmissions of the second wireless communication link. A second set of parameters defining a second set of time intervals is determined. The second set of time intervals is utilized to schedule transmissions of the first wireless communication link to reduce interference with transmissions of the third wireless communication link. The second set of parameters is determined based at least in part on at least one of the first set of parameters.

Symbol vector-level combining receiver for incremental redundancy harq with mimo

Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.

SYSTEMS AND METHODS FOR SUPPRESSING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM

Systems and methods are provided for suppressing interference from a received data signal. A characteristic of a channel is estimated, the channel being configured for transmission of data between a transmitting device and a receiving device having two or more receive antennas. A spatial correlation of interference is determined for the two or more receive antennas based on the channel characteristic. The received data signal is filtered based on the spatial correlation. 1. A method for suppressing interference from a data signal received at a receiving device , the receiving device having two or more receive antennas , the method comprising:estimating a characteristic of a channel through which the data signal was transmitted by a transmitting device to the receiving device;determining, based on the estimated characteristic of the channel, a spatial correlation of interference at the two or more receive antennas of the receiving device; andfiltering, based on the spatial correlation, the data signal received at the receiving device to suppress the interference in the data signal.2. The method of claim 1 , wherein the channel characteristic is estimated using a pilot portion of the data signal claim 1 , and wherein the pilot portion contains data that is known to both the transmitting device and the receiving device.3. The method of claim 2 , wherein determining the channel characteristic includes determining an instantaneous channel estimate using i) the known pilot portion data claim 2 , and ii) a portion of the received data signal that contains the pilot portion data.4. The method of claim 3 , wherein the instantaneous channel estimate is determined according to:{'br': None, 'i': h', 'k,t,r,s', 'y', 'k,t,r,s', 'x', 'k,t,s, '()=()/(),'}wherein h is the instantaneous channel estimate for a particular sub-carrier (k), at a particular time (t), for a particular receiving device antenna (r) and a particular transmit antenna (s);wherein y is associated with a received ...

SYSTEMS AND METHODS FOR SUPPRESSING INTERFERENCE IN A SIGNAL RECEIVED BY A DEVICE HAVING TWO OR MORE ANTENNAS

Systems and methods for suppressing interference from a data signal received at a receiving device, where the receiving device has two or more receive antennas, are provided. Characteristics of a channel are estimated, the channel being a channel through which the data signal was transmitted by a transmitting device to the receiving device. A spatial correlation of interference and noise received at the two or more receive antennas of the receiving device is determined based on the estimated characteristics of the channel. The spatial correlation indicates how the interference and noise received at a particular one of the receive antennas is related to the interference and noise received at another one of the receive antennas. The spatial correlation of the interference and noise is used to suppress interference and noise from the data signal received at the receiving device. 1. A method for suppressing interference from a data signal received at a receiving device , the receiving device having two or more receive antennas , the method comprising:estimating characteristics of a channel through which the data signal was transmitted by a transmitting device to the receiving device;determining, based on the estimated characteristics of the channel, a spatial correlation of interference and noise received at the two or more receive antennas of the receiving device, the spatial correlation indicating how the interference and noise received at a particular one of the receive antennas is related to the interference and noise received at another one of the receive antennas; andusing the spatial correlation of the interference and noise to suppress interference and noise from the data signal received at the receiving device.2. The method of claim 1 , wherein determining the spatial correlation of the interference and noise comprises determining a spatial covariance matrix for the interference and noise at the two or more receive antennas.3. The method of claim 2 , wherein ...

METHODS AND APPARATUS FOR MITIGATING KNOWN INTERFERENCE

Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. At least one of a first pilot signal associated with the transmission source and a second pilot signal associated with the interfering source is determined. The first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source. Interference caused by the interference source is mitigated from the received signal using at least one of the first pilot signal and the second pilot signal. 1. A method for mitigating known interference at a receiving device , the method comprising:receiving a signal from a transmission source that is affected by an interference source;determining at least one of i) a first pilot signal associated with the transmission source, and ii) a second pilot signal associated with the interfering source, wherein the first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source;mitigating interference caused by the interference source from the received signal using at least one of i) the first pilot signal and ii) the second pilot signal.2. The method of claim 1 , wherein the mitigating interference generates an interference mitigated received signal claim 1 , and wherein the method further comprises processing the interference mitigated received signal to generate at least one of a channel estimate associated with the transmission source claim 1 , synchronization with the transmission source claim 1 , decoded data received from the transmission source claim 1 , and a signal quality indicator for the received signal.3. The method of claim 1 , wherein mitigating interference comprises:computing a channel estimate associated with the interference ...

Enhanced demodulation reference signal (dm-rs) design

A method in a mobile communication terminal includes receiving a Multi-User Multiple-Input Multiple-Output (MU-MIMO) signal, which includes at least a precoded transmission that is addressed to the terminal and which includes one or more Demodulation Reference Signals (DM-RS). Control information, which indicates one or more scrambling sequences and one or more orthogonalization sequences used in producing the DM-RS, is received in the mobile communication terminal. The control information is provided in a format that does not permit signaling of every possible scrambling sequence and orthogonalization sequence selection. The control information is interpreted in the mobile communication terminal so as to identify the scrambling sequences and orthogonalization sequences used in producing the DM-RS, and the DM-RS are demodulated using the identified scrambling sequences and orthogonalization sequences.

DOWNLINK CONTROL CHANNEL SIGNALING IN WIRLESS COMMUNICATION SYSTEMS

A method in a wireless communication device may include receiving a plurality of sub-frames, each sub-frame having time-frequency resource elements, at least one of the sub-frames having a control channel. In some implementations, the plurality of sub-frames forms a continuum of concatenated sub-frames. Each of the plurality of resource allocation fields of the control channel may indicate a resource assignment to the wireless communication device based on a channel quality report, as well as resource assignments in sub-frames of the continuum of concatenated sub-frames. At least one sub-frame of the continuum of concatenated sub-frames may include information indicating that at least some of the resource assignments are frequency diverse. 1. A method in a wireless communication device , the method comprising:receiving a plurality of sub-frames, each sub-frame having time-frequency resource elements, at least one of the sub-frames having a control channel, the plurality of sub-frames forming a continuum of concatenated sub-frames;the control channel including a plurality of resource allocation fields, each resource allocation field associated with at least one corresponding sub-frame,each of the plurality of resource allocation fields indicating a resource assignment to the wireless communication device based on a channel quality report; andthe plurality of resource allocation fields indicating resource assignments in sub-frames of the continuum of concatenated sub-frames;a sub-frame of the continuum of concatenated sub-frames including information indicating that at least some of the resource assignments are frequency diverse.2. The method of claim 1 , further comprising referencing individual resource assignments in one or more corresponding sub-frames of the continuum of concatenated sub-frames via a look-up table.3. The method of claim 1 , wherein the information indicates that the resource assignments are frequency diverse on the control channel.4. The method ...

CROSS-LAYER SCHEDULING BASED ON LOWER LAYER FEEDBACK

Systems, methods, apparatus, and techniques are provided for retransmitting packets of data. A Radio Link Control (RLC) layer data packet is generated, and the RLC layer data packet is converted to one or more physical (PHY) layer data packets. The one or more PHY layer data packets are transmitted. At least one of a hybrid automatic transmission request (HARQ) acknowledgement (ACK) message and a HARQ negative acknowledgment (NACK) message is received from a receiver in response to transmission of the one or more PHY layer data packets. It is determined whether the at least one of the HARQ ACK message and the HARQ NACK message represents a automatic transmission request (ARQ) ACK message or a ARQ NACK message. 1. A system for retransmitting packets of data , the system comprising;processing circuitry configured to generate a Radio Link Control (RLC) layer data packet; convert the RLC layer data packet to one or more physical (PHY) layer data packets, and', 'transmit the one or more PHY layer data packets; and, 'transmission circuitry configured to'} receive at least one of a hybrid automatic transmission request (HARQ) acknowledgement (ACK) message and a HARQ negative acknowledgment (NACK) message from a receiver in response to transmission of the one or more PHY layer data packets, and', 'determine whether the at least one of the HARQ ACK message and the HARQ NACK message represents a automatic transmission request (ARQ) ACK message or a ARQ NACK message., 'scheduling circuitry configured to'}2. The system of claim 1 , wherein the transmission circuitry is further configured to re-convert the RLC layer data packet into one or more additional PHY layer data packets in response to a determination that the at least one of the HARQ ACK message and the HARQ NACK message represents the ARQ NACK message.3. The system of claim 2 , wherein the transmission circuitry is further configured to:convert the RLC layer data packet to one or more PHY layer data packets based on (i) ...

SYMBOL VECTOR MAPPING FOR CHASE-COMBINING HARQ

A method includes mapping, based on a first antenna mapping, a plurality of symbols to a plurality of antennas for transmitting a first data unit to a receiver, mapping, based on a first subcarrier mapping, the plurality of symbols to a plurality of subcarriers for transmitting the first data unit, and determining whether the receiver has successfully received the first data unit. The method also includes, in response to determining that the receiver has not successfully received the first data unit, (i) mapping, based on a second antenna mapping, the plurality of symbols to the plurality of antennas for transmitting a second data unit to the receiver, (ii) mapping, based on a different, second subcarrier mapping, the plurality of symbols to the plurality of subcarriers for transmitting the second data unit, and (iii) causing the second subcarrier mapping to be communicated to the receiver.

Method And Apparatus For Jointly Performing Channel Estimation And Interference Estimation In A Wireless Communication System

Systems and methods for estimating characteristics of a channel are provided. A transmission of known reference data is received at a receiving device. The reference data is transmitted over the channel that includes one or more desired layers and one or more interfering layers. Characteristics of the channel are determined based on the known reference data, where the determining includes a joint estimation of the one or more desired layers and the one or more interfering layers. The determining includes selecting certain of the layers to be estimated at each of the known reference data and selecting certain of the layers to be estimated over a range of the known reference data. The determining includes solving an equation to jointly estimate the one or more desired layers and the one or more interfering layers based on the selections. The selections reduce a number of unknown values in the equation. 1. A method for estimating characteristics of a channel , the method comprising:receiving a transmission of known reference data at a receiving device, wherein the reference data is transmitted over the channel that includes one or more desired layers and one or more interfering layers; and selecting certain of the layers to be estimated at each of the known reference data,', 'selecting certain of the layers to be estimated over a range of the known reference data, and', 'solving an equation to jointly estimate the one or more desired layers and the one or more interfering layers based on the selections, the selections reducing a number of unknown values in the equation., 'determining characteristics of the channel based on the known reference data, the determining including a joint estimation of the one or more desired layers and the one or more interfering layers, and the determining including'}2. The method of claim 1 , further comprising:determining the range of the known reference data for the certain layers based on a frequency or a time over which the layers are ...

USER MOBILITY CONTROL FOR HETEROGENEOUS WIRELESS NETWORKS

In a wireless network including a first cell and a second cell, it is determined whether a measure of mobility of a user device meets a mobility criterion, and it is determined whether a size of the second cell meets a cell size criterion. When it is determined that (i) the measure of mobility of the user device meets the mobility criterion and (ii) the size of the second cell meets the cell size criterion, the user device is prevented from being switched from the first cell to the second cell, or at least one of (i) a handover parameter or (ii) a cell reselection parameter is adjusted in order to change a probability that the user device will switch from the first cell to the second cell. 1. A method of controlling a switching of a user device from a first cell to a second cell in a wireless network , the method comprising:determining whether a measure of mobility of the user device meets a mobility criterion;determining whether a size of the second cell meets a cell size criterion; and preventing the user device from being switched from the first cell to the second cell, or', 'adjusting at least one of (i) a handover parameter or (ii) a cell reselection parameter in order to change a probability that the user device will switch from the first cell to the second cell., 'when it is determined that (i) the measure of mobility of the user device meets the mobility criterion and (ii) the size of the second cell meets the cell size criterion,'}2. A method according to claim 1 , further comprising preventing the first cell from issuing a handover command to the user device when it is determined that (i) the measure of mobility of the user device meets the mobility criterion and (ii) the size of the second cell meets the cell size criterion.3. A method according to claim 1 , further comprising claim 1 , when it is determined that (i) the measure of mobility of the user device meets the mobility criterion and (ii) the size of the second cell meets the cell size criterion ...

EFFICIENT SEARCH OF PRECODERS IN PRECODED MIMO SYSTEMS

A method includes calculating a set of first metrics using channel information and one or more precoders, where each of the first metrics corresponds to a respective set of a plurality of sets of codebook precoders, and selecting, based on the set of first metrics and a first selection criteria, a set of codebook precoders from the plurality of sets of codebook precoders. The method also includes, in response to selecting the set of codebook precoders, calculating a set of second metrics and selecting, based on (i) the set of second metrics and (ii) a second selection criteria, a codebook precoder from the selected set of codebook precoders. Each of the second metrics is calculated using a respective codebook precoder in the selected set of codebook precoders. The method also includes causing the selected codebook precoder to be applied to a signal to be transmitted to a communication device. 1. A method , implementable by one or more processors in a communication system , wherein the communication system includes a first communication device configured to receive precoded signals from a second communication device via a wireless channel , the method comprising:calculating, via the one or more processors, a set of first metrics using (i) channel information corresponding to the wireless channel, and (ii) one or more precoders, wherein each metric of the set of first metrics corresponds to a respective set of a plurality of sets of codebook precoders;selecting, via the one or more processors and based on (i) the set of first metrics and (ii) a first selection criteria, a set of codebook precoders from the plurality of sets of codebook precoders; calculating, via the one or more processors, a set of second metrics, wherein calculating a set of second metrics includes calculating each metric in the set of second metrics using a respective codebook precoder in the selected set of codebook precoders, and', 'selecting, via the one or more processors and based on (i) the ...

SOUNDING AND TONE BLOCK ALLOCATION FOR ORTHOGONAL FREQUENCY MULTIPLE ACCESS (OFDMA) IN WIRELESS LOCAL AREA NETWORKS

A first communication device transmits a null data packet (NDP) to multiple second communication devices. The NDP spans a channel frequency bandwidth. The first communication device receives a plurality of sounding feedback packets from the second communication devices. Each sounding feedback packet includes one or more signal-to-noise ratio (SNR) indicators corresponding to one or more respective groups of orthogonal frequency division multiplexing (OFDM) subcarriers, and the SNR indicators correspond to reception of the NDP at the plurality of second communication devices. Each sounding feedback packet in the plurality of sounding feedback packets includes a respective indication of OFDM subcarriers for which the sounding feedback packet includes SNR information, and at least one sounding feedback packet from among the plurality of sounding feedback packets does not include SNR information for all OFDM subcarriers via which the NDP was transmitted. 1. A method for simultaneously communicating with multiple communication devices in a communication network , the method comprising:transmitting, by a first communication device, a null data packet (NDP) to a plurality of second communication devices, wherein the NDP spans a channel frequency bandwidth, and wherein the NDP is transmitted via a plurality of orthogonal frequency division multiplexing (OFDM) subcarriers that span the channel frequency bandwidth; wherein each sounding feedback packet includes one or more signal-to-noise ratio (SNR) indicators corresponding to one or more respective groups of OFDM subcarriers from among the plurality of OFDM subcarriers,', 'wherein the SNR indicators correspond to reception of the NDP at the plurality of second communication devices,', 'wherein each sounding feedback packet in the plurality of sounding feedback packets includes a respective indication of OFDM subcarriers for which the sounding feedback packet includes SNR information, and', 'wherein at least one sounding ...

DOWNLINK SIGNALING IN A HIGH EFFICIENCY WIRELESS LOCAL AREA NETWORK (WLAN)

A method for generating a physical layer (PHY) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit; generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; generating the PHY data unit to include at least the preamble. 1. A method for generating a physical layer (PHY) data unit for transmission via a communication channel , the method comprising:generating, by a first communication device, a first signal field to include multiple copies of first signal field content, wherein the first signal field content includes an identifier of a wireless network in which the PHY data unit is being transmitted, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; the common block includes a frequency resource unit allocation field having a length that varies depending on a bandwidth of the PHY data unit, the frequency resource unit allocation field indicating i) widths and locations of frequency resource units in a data portion of the PHY data unit, and ii) a respective number of users allocated to each frequency resource unit, and', 'each of at least some user blocks corresponds to a respective frequency resource unit, includes an identifier of a second communication device to which the ...

CHANNEL FRAME STRUCTURES FOR HIGH EFFICIENCY WIRELESS LAN (HEW)

An high efficiency wireless local area network access point including a channel access module and a scheduling module. The channel access module accesses a channel of an unlicensed frequency band, which includes a plurality of subchannels. The scheduling module generates a schedule for a plurality of high efficiency wireless local area network client stations to transmit data to the access point via the channel of the unlicensed frequency band. The schedule includes information for the plurality of client stations regarding (i) a time slot in which to access the channel without contention to transmit data to the access point via the channel, (ii) a subchannel of the plurality of subchannels to use during the time slot to transmit data to the access point, and (iii) one or more spatial streams to use on the subchannel and during the time slot to transmit data to the access point. 1. An access point comprising:a channel access module configured to access a channel of an unlicensed frequency band, wherein the channel of the unlicensed frequency band includes a plurality of subchannels; anda scheduling module configured to generate a schedule for a plurality of client stations to transmit data to the access point via the channel of the unlicensed frequency band,wherein the schedule includes information for the plurality of client stations regarding (i) a time slot in which to access the channel without contention to transmit data to the access point via the channel of the unlicensed frequency band, (ii) a subchannel of the plurality of subchannels of the unlicensed frequency band to use during the time slot to transmit data to the access point, and (iii) one or more spatial streams to use on the subchannel and during the time slot to transmit data to the access point,wherein the access point includes a high efficiency wireless local area network access point configured to communicate with the plurality of client stations in a wireless local area network operating in the ...

CHANNEL QUALITY INDICATION WITH FILTERED INTERFERENCE

A plurality of interference measurements are obtained at a first communication device. The interference measurements correspond to interference experienced by the first communication device. A filter is applied to the plurality of interference measurements to obtain a filtered interference measurement, wherein the filtered interference measurement is a function of a current interference measurement and one or more past interference measurements. A channel quality indicator (CQI) corresponding to a communication channel between the first communication device and a second communication device is determined based at least in part on the filtered interference measurement. The CQI is transmitted from the first communication device to the second communication device. 1. A method , comprising:obtaining, at a first communication device, a plurality of interference measurements corresponding to interference experienced by the first communication device;applying a filter to the plurality of interference measurements to obtain a filtered interference measurement, wherein the filtered interference measurement is a function of a current interference measurement and one or more past interference measurements;determining, based at least in part on the filtered interference measurement, a channel quality indicator (CQI) corresponding to a communication channel between the first communication device and a second communication device; andtransmitting the CQI from the first communication device to the second communication device.2. The method of claim 1 , wherein applying the filter to the plurality of interference measurements to obtain a filtered interference measurement comprises applying a recursive filter having an associated recursive filter coefficient.3. The method of claim 2 , further comprising:determining an interfering channel scenario related to reliability of interference measurements at the first communication device; andadapting the recursive filter coefficient based ...

SYSTEMS AND METHODS FOR PROVIDING RESOURCE SIGNALING WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN)

Embodiments described herein provide a method for resource unit signaling with reduced data bits in a wireless local area network. At a wireless transceiver, a data frame may be obtained for transmission. The data frame includes a first preamble portion and a second preamble portion compliant with a wireless local area network communication protocol. When an available resource unit for transmitting the data frame is less than an allowed bandwidth, the first preamble portion and the second preamble portion may be configured with resource unit signaling bits. When the available resource unit is greater than or equal to the allowed bandwidth, the resource unit may be virtually divided into a plurality of channels. At least one of the first preamble portion and the second preamble portion may be configured with a first number of bits representing a number of users spatially multiplexed on a channel from the plurality of channels 120-. (canceled)21. A method for providing resource unit signaling with reduced data bits in a wireless local area network , the method comprising:determining whether a resource unit for transmitting a data frame is greater than an allowed bandwidth; virtually dividing the resource unit into a plurality of channels;', 'for each channel from the plurality of channels, configuring a SIGB portion of the data frame to indicate a subset of client stations spatially multiplexed on the respective channel; and, 'when the resource unit is greater than or equal to the allowed bandwidthtransmitting the data frame including the configured SIGB portion.22. The method of claim 21 , further comprising:evenly distributing a set of spatially multiplexed client stations into each channel of the plurality of channels.23. The method of claim 22 , further comprising:for each channel, allocating a subset of consecutively indexed client stations to the respective channel.24. The method of claim 22 , further comprising:allocating one client station to a channel from ...

ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS LOCAL AREA NETWORK

A first communication device determines assignment of at least a first orthogonal frequency division multiplex (OFDM) tone block and a second OFDM tone block for communication with a second communication device in a wireless local area network (WLAN). The first OFDM tone block is separated from the second OFDM tone block by a gap in frequency. The first communication device generates a physical layer (PHY) data unit for transmission to the second communication device, including generating a data portion of the PHY data unit that spans the first OFDM tone block and the second OFDM tone block. The first communication device transmits the PHY data unit to the second communication device via the first OFDM tone block and the second OFDM tone block such that no data is transmitted in the third OFDM tone block for the data portion of the PHY data unit. 1determining, at a first communication device, assignment of at least a first orthogonal frequency division multiplex (OFDM) tone block and a second OFDM tone block for communication with a second communication device in a wireless local area network (WLAN), wherein the first OFDM tone block is separated from the second OFDM tone block by a gap in frequency; and 'generating a data portion of the PHY data unit that spans the first OFDM tone block and the second OFDM tone block; and', 'generating, at the first communication device, a physical layer (PHY) data unit for transmission to the second communication device, includingtransmitting, by the first communication device, the PHY data unit to the second communication device via the first OFDM tone block and the second OFDM tone block such that no data is transmitted in the third OFDM tone block for the data portion of the PHY data unit.. A method, comprising: This application is a continuation of U.S. patent application Ser. No. 15/983,524, now U.S. Pat. No. 10,433,309, entitled “Orthogonal Frequency Division Multiple Access for Wireless Local Area Network,” filed on May 18, ...

CHANNEL QUALITY INDICATOR FOR TIME, FREQUENCY AND SPATIAL CHANNEL IN TERRESTRIAL RADIO ACCESS NETWORK

A wireless communication terminal that communicates on a plurality of sub-carriers divided into a plurality of frequency bands, wherein each frequency band includes at least one sub-carrier. The terminal measures a channel quality indicator (CQI) for a plurality of frequency bands, identifies a subset of frequency bands for which the channel quality indicator has been measured based on a subset criterion, and transmits a report identifying a subset of frequency bands for which a channel quality indicator has been measured or frequency bands not in the subset. In some embodiments, the report also includes a subset CQI value associated with at least the subset of frequency bands. 1. A method in a wireless communication device in a synchronous network , the method comprising:receiving, at the wireless communication device, signaling including network configuration data from a first base station; andcomputing, at the wireless communication device, CQI using a common reference symbol or a dedicated reference symbol provided by the first base station, characterized bythe CQI also based on the received network configuration data;reporting Channel Quality Indicator (CQI) measurements to the first base station,wherein the network configuration data includes information about transmissions from other base stations.2. The method of claim 1 , the network configuration data includes information about data transmissions from other base stations.3. The method of claim 1 , the network configuration data includes information about synchronization symbols from other base stations.4. The method of claim 1 , the network configuration data includes information about channel sequence symbols from other base stations.5. The method of claim 1 , further comprising computing claim 1 , at the wireless communication device claim 1 , CQI based on a combination of pilot symbols and data symbols. This application is a continuation of co-pending U.S. application Ser. No. 11/194,224 filed Aug. 1, ...

USER MOBILITY CONTROL FOR HETEROGENEOUS WIRELESS NETWORKS

In a wireless network including a first cell and a second cell, it is determined whether a measure of mobility of a user device meets a mobility criterion, and it is determined whether a size of the second cell meets a cell size criterion. When it is determined that (i) the measure of mobility of the user device meets the mobility criterion and (ii) the size of the second cell meets the cell size criterion, the user device is prevented from being switched from the first cell to the second cell, or at least one of (i) a handover parameter or (ii) a cell reselection parameter is adjusted in order to change a probability that the user device will switch from the first cell to the second cell. 1. A method of controlling a switching of a user device from a first cell to a second cell in a wireless network , the method comprising:determining whether speed information corresponding to a velocity of the user device meets a threshold that was determined based on a size of the second cell;determining whether the size of the second cell meets a cell size criterion; and 'preventing the user device from being switched from the first cell to the second cell.', 'when it is determined that (i) the speed information meets the threshold and (ii) the size of the second cell meets the cell size criterion,'}2. The method of claim 1 , wherein preventing the user device from being switched from the first cell to the second cell includes:preventing the first cell from issuing a handover command to the user device.3. The method of claim 1 , wherein preventing the user device from being switched from the first cell to the second cell includes:preventing, at a base station serving the first cell, the user device from at least one of (i) performing a handover measurement corresponding to the second cell, or (ii) performing a cell reselection measurement corresponding to the second cell.4. The method of claim 1 , wherein preventing the user device from being switched from the first cell to the ...

Short training field for wifi

A first training field is generated for a preamble of an orthogonal frequency division multiplex (OFDM) data unit for transmission via a communication channel according to a first communication protocol. The first training field: i) conforms to a second communication protocol, and ii) has a first periodicity. A second training field is generated for the preamble. The second training field: i) conforms to the first communication protocol, and ii) has a second periodicity that corresponds to a selected transmission mode of the communication channel. The first training field is modulated using a first OFDM tone spacing, and the second training field is modulated using a second OFDM tone spacing, where the second tone spacing is narrower than the first tone spacing. The preamble is generated i) to include the second training field after the first training field, and ii) to indicate the selected transmission mode.

Physical Layer Data Unit Format for a Wireless Communication Network

In a method for generating a data unit, it is determined whether the data unit is to be transmitted using single carrier (SC) modulation or orthogonal frequency division (OFDM) modulation. When it is determined that the data unit is to be transmitted using SC modulation, a header field of the data unit is generated using a first technique to indicate that the data unit conforms to a first protocol and/or whether the data unit conforms to a first PHY mode or a second PHY mode of the first protocol. When it is determined that the data unit is to be transmitted using OFDM modulation, the header field is generated using a second technique to indicate that the data unit conforms to the first protocol and/or whether the data unit conforms to the first PHY mode or the second PHY mode of the first protocol. 1. A method for generating a data unit for transmission via a communication channel , the method comprising:determining, at a network interface of a communication device, whether the data unit is to be transmitted using single carrier (SC) modulation or using orthogonal frequency division (OFDM) modulation; when it is determined that the data unit is to be transmitted using SC modulation, generating the header field using a first technique to indicate one or both of (i) that the data unit conforms to a first communication protocol and not a second communication protocol and (ii) whether the data unit conforms to a first PHY mode of the first communication protocol or a second PHY mode of the first communication protocol, and', 'when it is determined that the data unit is to be transmitted using OFDM modulation, generating the header field using a second technique to indicate one or both of (i) that the data unit conforms to the first communication protocol and not the second communication protocol and (ii) whether the data unit conforms to the first PHY mode of the first communication protocol or the second PHY mode of the first communication protocol;, 'generating, at ...

Physical layer frame format for wlan

A first communication device generates a physical layer (PHY) preamble for a PHY data unit to be transmitted via a communication channel, the PHY data unit conforming to a first communication protocol. Generating the PHY preamble includes generating a legacy portion of the PHY preamble to include a legacy signal field, which is decodable by one or more second communication devices that conform to a second communication protocol to determine a duration of the PHY data unit. The PHY preamble is generated to also include a duplicate of the legacy signal field in the PHY preamble, wherein presence of the duplicate of the legacy signal field indicates to one or more third communication devices that conform to the first communication protocol that the PHY data unit conforms to the first communication protocol. The first communication device generates the PHY data unit to include the PHY preamble and a PHY payload.

SHORT TRAINING FIELD FOR WIFI

A communication device receives a first physical layer (PHY) data unit via a communication channel. The first PHY data unit corresponds to a trigger frame, and includes: a first PHY preamble having a legacy portion and a non-legacy portion, a first training field that includes a first training signal having a periodicity LP, and a second training field that includes a second training signal having the periodicity LP. The communication device generates a second PHY data unit. The second PHY data unit includes: a second PHY preamble that includes a third training field that includes a third training signal, and a fourth training field that includes a fourth training signal having a periodicity 2*LP. Generating the second PHY data unit comprises: modulating the third training field using a first tone spacing LTS between adjacent OFDM tones, and modulating the fourth training field using a second tone spacing equal to LTS/4 between adjacent OFDM tones. 1 a first PHY preamble having a legacy portion and a non-legacy portion,', {'sub': 'P', 'a first training field in the legacy portion of the first PHY preamble, wherein the first training field is for packet detection and for automatic gain control (AGC) adjustment, and wherein the first training field includes a first training signal having a periodicity L, and'}, {'sub': 'P', 'a second training field in the non-legacy portion of the first PHY preamble, wherein the second training field includes a second training signal having the periodicity L;'}], 'receiving, at a communication device, a first physical layer (PHY) data unit via a communication channel, wherein the first PHY data unit corresponds to a trigger frame that is configured to prompt the communication device to transmit a second PHY data unit in response to receiving the first PHY data unit, wherein the first PHY data unit includes a second PHY preamble having a legacy portion and a non-legacy portion,', 'a third training field in the legacy portion of the ...

HIGH EFFICIENCY ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) PHYSICAL LAYER (PHY)

A communication device determines that an extension field should be included in physical layer (PHY) data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a PHY preamble of the PHY data unit, and ii) a PHY data portion of the PHY data unit, the PHY data unit conforming to a first communication protocol. Each orthogonal frequency division multiplexing (OFDM) symbol in the PHY data portion is generated with a first tone spacing, which is a fraction 1/N of a second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one. The communication device also generates the extension field of the PHY data unit, which is appended to an end of the PHY data portion. 1. A method for generating a physical layer (PHY) data unit for transmission via a communication channel , the data unit conforming to a first communication protocol , the method comprising:determining, at a communication device, that an extension field should be included in the PHY data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver;generating, at the communication device, a PHY preamble of the PHY data unit;generating, at the communication device, a PHY data portion of the PHY data unit, including generating one or more orthogonal frequency division multiplexing (OFDM) symbols, wherein each OFDM symbol of the one or more OFDM symbols is generated with a first tone spacing, wherein the first tone spacing is a fraction 1/N of a second tone spacing, the second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one; andgenerating, at the communication device, the extension field of the PHY data unit, the extension field being ...

TONE BLOCK ALLOCATION FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS DATA UNIT

For a first group of devices having a first group size, a set of block allocations is selected from a codebook. A block allocation for the first group of devices is selected from the selected set of block allocations. A corresponding integer number of different orthogonal frequency division multiplexing (OFDM) tone blocks is assigned to each device of the first group of devices according to the allocation. An orthogonal frequency division multiple access (OFDMA) data unit to be transmitted to the first group of devices via the WLAN communication channel is generated using the assigned set of OFDM tone blocks. The OFDMA data unit includes a preamble portion and a data portion, the preamble portion having an index to the codebook that indicates i) the first group size, and ii) the selected block allocation. 1. A method , comprising:selecting, for a first group of devices having a first group size of a plurality of potential group sizes, a set of block allocations from a codebook, the codebook having respective sets of block allocations corresponding to each of the plurality of potential group sizes, wherein the selected set of block allocations is selected to correspond to the first group size;selecting a block allocation for the first group of devices from the selected set of block allocations, the selected block allocation indicating a respective set of orthogonal frequency division multiplexing (OFDM) tone blocks to be assigned to each device of the first group of devices, each set of OFDM tone blocks indicating a respective integer number of different OFDM tone blocks of a wireless local area network (WLAN) communication channel;assigning, to each device of the first group of devices, the corresponding integer number of different OFDM tone blocks of the selected block allocation, wherein the selected block allocation includes at least i) a first set of OFDM tone blocks assigned to a first device of the first group of devices and ii) a second set of OFDM tone ...

ACCESS POINT COORDINATION FOR TRAFFIC CONTROL IN WIRELESS NETWORKS

A presence of interference between a first wireless network and a second wireless network is determined. Transmissions in the first wireless network are coordinated with transmissions in the second wireless network to reduce interference between the first wireless network and the second wireless network. Transmissions in the first wireless network are scheduled based on the coordinating to reduce interference between the first wireless network and the second wireless network. 1. A method for reducing interference in wireless communications , the method comprising:determining, by a communication device of or communicatively coupled to a first wireless network, a presence of interference between the first wireless network and a second wireless network;coordinating, with the first communication device, transmissions in the first wireless network with transmissions in the second wireless network to reduce interference between the first wireless network and the second wireless network; andscheduling, at a first access point, transmissions in the first wireless network, based on the coordinating to reduce interference between the first wireless network and the second wireless network.2. The method of claim 1 , wherein coordinating transmissions in the first wireless network with transmissions in the second wireless network comprises:determining first time slots in which transmissions in the first wireless network are to occur; anddetermining second time slots in which transmissions in the first wireless network are not to occur.3. The method of claim 2 , wherein scheduling transmissions in the first wireless network comprises:establishing, with the first access point, transmit opportunity (TxOP) periods corresponding to the second time slots to prevent stations in the first wireless network from transmitting during the second time slots.4. The method of claim 3 , wherein establishing TxOP periods comprises:transmitting, with the first access point one or more clear-to- ...

SHORT TRAINING FIELD FOR WIFI

A method for generating an orthogonal frequency division multiplex (OFDM) data unit conforming to a first communication protocol for transmission via a communication channel is described. A first field is generated that conforms to a second communication protocol and has an integer number of OFDM symbols Lhaving a periodicity L. A second field is generated that conforms to the first communication protocol, has an integer number of OFDM symbols Hhaving a periodicity H, and is based on a frequency sequence having non-zero values at an integer interval K. The first and second fields are modulated using a tone spacing Land a tone spacing H, respectively. Lis a multiple M of H. The OFDM data unit is generated to include a preamble including the first and second fields. The second field is generated such that His proportional to Land K and inversely proportional to M. 1. A method for generating an orthogonal frequency division multiplex (OFDM) data unit for transmission via a communication channel , the OFDM data unit conforming to a first communication protocol , the method comprising:{'sub': N', 'P, 'generating a first training field to be included in a preamble of the OFDM data unit, wherein the first training field: i) conforms to a second communication protocol, and ii) has an integer number of OFDM symbols Lhaving a periodicity L;'}{'sub': N', 'P, 'generating a second training field to be included in the preamble after the first training field, wherein the second training field: i) conforms to the first communication protocol, ii) has an integer number of OFDM symbols Hhaving a periodicity H, and iii) is based on a frequency sequence having non-zero values at an interval K, where K is an integer;'}{'sub': 'TS', 'modulating the first training field using a first tone spacing Lbetween adjacent OFDM tones;'}{'sub': TS', 'TS', 'TS, 'modulating the second training field using a second tone spacing H, where the first tone spacing Lis a multiple M of the second tone ...

ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS LOCAL AREA NETWORK

A plurality of different OFDM tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices. An OFDMA data unit is generated, the OFDMA unit including a preamble portion and a data portion, the preamble portion having at least i) a first legacy portion that corresponds to at least a first OFDM tone block, ii) a second legacy portion that corresponds to a second OFDM tone block, iii) a first non-legacy portion that corresponds to the first OFDM tone block, iv) a second non-legacy portion that corresponds to the second OFDM tone block, and v) a third non-legacy portion that corresponds to a third OFDM tone block. The first OFDM tone block and the second OFDM tone block are separated in frequency by at least the third OFDM tone block. 1. A method , comprising:assigning a plurality of different orthogonal frequency division multiplex (OFDM) tone blocks for a wireless local area network (WLAN) communication channel to a plurality of devices including a first device and second device, wherein the plurality of different OFDM tone blocks includes at least a first OFDM tone block and a second OFDM tone block assigned to the first device and a third OFDM tone block assigned to the second device, wherein the first OFDM tone block and the second OFDM tone block are separated in frequency by at least the third OFDM tone block; and the first legacy portion is modulated on at least the first OFDM tone block,', 'the first non-legacy portion is modulated on the first OFDM tone block,', 'the second legacy portion is modulated on at least the second OFDM tone block,', 'the second non-legacy portion is modulated on the second OFDM tone block, and', 'the third non-legacy portion is modulated on the third OFDM tone block., 'generating an orthogonal frequency division multiple access (OFDMA) data unit for the WLAN communication channel, the OFDMA unit including a preamble portion and a data portion, the preamble portion having at least i ...

UPLINK TRANSMIT BEAM SWEEP

Systems and methods related to partial beam correspondence may be used to address potential limitations of beamforming wireless networks. A user equipment electronic device and/or wireless network identifies a subset of available transmitter beams for the user equipment electronic device that are indicated as similar to a downlink reference signal received at the user equipment electronic device from a wireless network node. The user equipment electronic device sweeps the subset of available transmitter beams for communication with the wireless network node and uses a best beam from the sweep to communicate with the wireless network node. 1. A method , comprising:receiving a downlink reference signal at a user equipment electronic device (UE) from a wireless network node;identifying a subset of available transmitter beams for UE that are indicated as similar to a downlink reference signal; andsweeping, using the UE, the subset of available transmitter beams for communication with the wireless network node.2. The method of claim 1 , wherein identifying the subset of the available transmitter beams comprises selecting the available transmitter beams near a direction corresponding to the downlink reference signal.3. The method of claim 1 , comprising:detecting human body entering into proximity of the UE in a path between the wireless network node and the UE via a currently used transmitter beam, wherein the currently used transmitter beam is in the subset of available transmitter beams;determining that transmission at a current power level through the currently used transmitter beam would exceed a maximum permissive exposure (MPE) for the human body; andin response the determination that the MPE would be exceeded, reducing power for the currently used transmitter beam.4. The method of claim 3 , comprising claim 3 , in response to the reduced power for the currently used transmitter beam claim 3 , sweeping through the subset of available transmitter beams to determine ...

Radio resource assignment in control channel in wireless communication systems

A method in a wireless communication device including receiving ( 410 ) a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines ( 420 ) at least two of the control channel elements, and decodes ( 430 ) the combined control channel elements.

SYSTEM AND METHOD OF TONE MAPPING DURING SINGLE USER AND MULTIPLE USER OPERATING MODES INCLUDING TRANSMISSIONS RESPECTIVELY OF OFDM SYMBOLS AND OFDMA SYMBOLS IN A WLAN

A system including a direct current tone, guard tone, data tone allocation, mapping, and inverse Fourier transform (IFT) modules. The direct current tone module determines a number of direct current tones based on whether a network device is operating in a single user or multi-user mode. The guard tone module determines a number of guard tones based on whether the network device is operating in the single user or multi-user mode. The data tone allocation module determines a number of data tones based on the number of direct current and guard tones. The mapping module receives data and based on the number of data tones, maps the data to the data tones. The IFT module performs a frequency to time domain conversion of an output of the mapping module to generate orthogonal frequency division multiplexing (OFDM) symbols during the single user mode and OFDM access symbols during the multi-user mode. 1. A system comprising:a direct current tone module configured to determine a number of direct current tones based on whether a first network device is operating in a single user mode or a multi-user mode;a guard tone module configured to determine a number of guard tones based on whether the first network device is operating in the single user mode or the multi-user mode;a data tone allocation module configured to determine a number of data tones based on (i) the number of direct current tones and (ii) the number of guard tones;a mapping module configured to (i) receive data, and (ii) based on the number of data tones, map the data to the data tones;an inverse Fourier transform module configured to perform a frequency domain to time domain conversion of an output of the mapping module to generate (i) orthogonal frequency division multiplexing symbols responsive to the first network device operating in the single user mode, and (ii) orthogonal frequency division multiplexing access symbols responsive to the first network device operating in the multi-user mode; anda ...

MEDIUM ACCESS PROTECTION AND BANDWIDTH NEGOTIATION IN A WIRELESS LOCAL AREA NETWORK

A first communication device transmits a first control frame to multiple second communication devices via a wireless communication medium, wherein the first control frame i) indicates to other communication devices that the wireless communication medium is reserved for a first time period, and ii) indicates that the second communication devices are requested to simultaneously transmit respective second control frames to the first communication device via the wireless communication medium, wherein the second control frames are to include information indicating to other communication devices that the wireless communication medium is reserved for a second time period that is a subset of the first time period. 1. A method , comprising: i) indicates to other communication devices that the wireless communication medium is reserved for a first time period, and', 'ii) indicates that the two or more second communication devices are requested to simultaneously transmit respective second control frames to the first communication device via the wireless communication medium, wherein the second control frames are to include information indicating to other communication devices that the wireless communication medium is reserved for a second time period that is a subset of the first time period;, 'transmitting, with a first communication device acting, a first control frame to two or more second communication devices via a wireless communication medium, wherein the first control frame'}receiving, at the first communication device from at least some of the two or more second communication devices, respective second control frames, the received second control frames having been transmitted by the at least some of the two or more second communication devices via the wireless communication medium, wherein the received second control frames include the information indicating to other communication devices that the wireless communication medium is reserved for the second time period; ...

System and Method for Reporting Signal Quality Information

A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information. 1. A method for operating a wireless user equipment (UE) device , the method comprising: performing a measurement for a beam in a first time interval;', 'determining beam quality information based at least on the measurement;', 'transmitting the beam quality information to a base station in a second time interval, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K., 'performing operations on a processing element, wherein the operations include2. The method of claim 1 , wherein the operations also include:prior to said performing the measurement, receiving a configuration message indicating the delay value K.3. The method of claim 1 , wherein the operations also include:transmitting a signal indicating the delay value K to the base station.4. The method of claim 1 , wherein the delay value K is predefined.5. The method of claim 1 , wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement claim 1 , or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information.6. The method of ...

Downlink Control for Multi-TRP Transmissions

Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A cellular base station may provide a downlink control information transmission to a wireless device scheduling downlink transmissions to the wireless device from multiple transmission reception points. The downlink control information may include information that can be used by the wireless device to determine any or all of physical resource block bundling sizes, frequency domain resource allocations, modulation and coding schemes, redundancy versions, phase tracking reference signal configurations, and any of various other possible types of configuration information for the downlink transmissions. The wireless device may receive the downlink transmissions from the plurality of transmission reception points in accordance with the downlink control information. 1. A wireless device , comprising:at least one antenna;at least one radio coupled to the at least one antenna; anda processor coupled to the at least one radio; receive a downlink control information transmission scheduling downlink transmissions from a plurality of transmission reception points (TRPs); and', 'receive downlink transmissions from the plurality of TRPs in accordance with the downlink control information transmission., 'wherein the wireless device is configured to2. The wireless device of claim 1 , wherein the wireless device is further configured to:determine physical resource block bundling sizes separately for the downlink transmissions from the plurality of TRPs scheduled by the downlink control information transmission.3. The wireless device of claim 1 , wherein the wireless device is further configured to: a maximum physical resource block bundling size among the downlink transmissions; or', 'a minimum physical resource block bundling size among the downlink transmissions., 'determine a common physical resource block bundling size for the downlink transmissions from the plurality of TRPs scheduled ...

Framework for Two-Step Random Access Channel Procedure in Wireless Communications

A device may wirelessly transmit a physical RACH, and a first message on a physical uplink shared channel (PUSCH), in a first step of a 2-step random access channel (RACH) procedure. The device may receive a second message on a physical downlink shared channel in response to successful detection of the first message, in a second step of the 2-step RACH procedure. When detection of the first message is unsuccessful, the device may be instructed to fall back to a 4-step RACH procedure. The device may be configured with one or more first message transmit opportunities (PO), one of which may include one or more PUSCH resource units (PRUs). Some of the communication parameters of the device may be configured to be common for each PO, while other communication parameters may be configured per PRU. Respective new Radio Network Temporary ID values may be defined for the first message and second message.

Secondary Cell Link Recovery Request Transmission

Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to transmit an indication of a link failure on a secondary cell. The indication may be transmitted on resources selected based on one or more conditions. One or more priority rules may be used to resolve collisions. The UE may further make an assumption of a beam or beams to use for communications with the secondary cell following the link failure and prior to receiving an indication from the network of a selected beam. 1. A user equipment device (UE) , comprising:a radio; and [ a link to a primary cell (PCell); and', 'a link to a secondary cell (SCell); and, 'establish a connection with a cellular network, wherein the connection includes, 'determine a failure of the link to the SCell;', 'determine at least one condition for early transmission of an indication of the link to the SCell; and', 'transmit, to the cellular network, the indication, wherein the indication is transmitted outside of an opportunity for transmission of a link recovery message in response to the determination of the at least one condition., 'a processor operably coupled to the radio and configured to cause the UE to2. The UE of claim 1 , wherein the at least one condition includes a detection of an uplink grant claim 1 , wherein the indication of the failure of the link to the SCell is transmitted on resources allocated by the uplink grant.3. The UE of claim 1 , wherein the at least one condition includes that the UE is allocated resources by a configured grant claim 1 , wherein the indication is transmitted on the resources allocated by the configured grant.4. The UE of claim 3 , wherein the at least one condition further includes that the resources allocated by the configured grant are before a next opportunity for transmission of a link recovery message.5. The UE of claim 1 , wherein the at least one condition includes that the UE is configured for 2-step random access claim 1 , wherein ...

Adapting a Millimeter-Wave Wireless Link

An interface circuit in an electronic device may perform wireless link adaptation. During operation the interface circuit may transmit at least two data streams, where a first data stream of at least the two data streams has a higher quality-of-service (QoS) criterion and a lower modulation coding scheme (MCS), and a second data stream of at least the two data streams has a lower QoS criterion and a higher MCS. Then, the interface circuit may estimate a communication performance metric associated with the second data stream. Next, the interface circuit may selectively transmit an MCS probe associated with the second data stream based at least in part on the communication performance metric and the lower QoS criterion. Moreover, in response to receiving feedback information associated with the recipient electronic device and the MCS probe, the interface circuit may modify the first MCS and/or the second MCS. 1. An electronic device , comprising:a node configured to communicatively couple to an antenna; and transmit, via the node, at least two data streams, wherein a first data stream of the at least two data streams has a higher quality-of-service (QoS) criterion and a lower modulation coding scheme (MCS), and a second data stream of the at least two data streams has a lower QoS criterion and a higher MCS;', 'estimate a communication performance metric associated with the second data stream; and', 'selectively transmit, via the node, an MCS probe associated with the second data stream based at least in part on the communication performance metric and the lower QoS criterion., 'an interface circuit, communicatively coupled to the node, configured to communicate with a recipient electronic device, and configured to2. The electronic device of claim 1 , wherein the interface circuit is configured to:receive, at the node, feedback information associated with the recipient electronic device and the MCS probe; andmodify at least one of the first MCS or the second MCS based ...

Electronic Devices Having Sensor-Augmented Wireless Link Management

An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include a phased antenna array. Sensors and other circuitry in the electronic device may generate sensor data such as accelerometer data, gyroscope data, magnetometer data, location data, and spatial ranging data. The wireless circuitry may establish and maintain one or more wireless links with external devices based on the sensor data as the device moves over time. For example, the wireless circuitry may perform physical layer beam adjustments, inter-radio access technology handovers, intra-radio access technology handovers, and/or dual connectivity adjustments based on the sensor data. This may allow the device to maintain one or more wireless links without having to sweep the signal beam of the phased antenna array over its entire field of view each time the device has moved. 1. An electronic device configured to communicate with first and second external devices , the electronic device comprising:a phased antenna array configured to convey wireless data using radio-frequency signals at a frequency greater than 10 GHz with the first external device;a sensor configured to generate sensor data; andcontrol circuitry, wherein the control circuitry is configured to perform a handover of the wireless data based on the sensor data.2. The electronic device defined in claim 1 , wherein the control circuitry is configured to perform the handover of the wireless data from the first external device to the second external device.3. The electronic device defined in claim 2 , wherein the phased antenna array is configured to convey the radio-frequency signals at the frequency with the second external device after performing the handover.4. The electronic device defined in claim 2 , further comprising:an antenna that is separate from the phased antenna array, wherein the control circuitry is configured to control the antenna to convey the wireless data using additional ...

Rate Feedback for Wireless Video Streaming

An interface circuit in an electronic device may provide rate feedback. During operation the interface circuit may transmit one or more packets or frames associated with a data stream that are intended for the recipient electronic device, where the data stream is associated with a video encoder. Then, the interface circuit may estimate a communication performance metric associated with at least the transmissions. For example, the estimated communication performance metric comprises an effective capacity associated with a wireless link between the electronic device and the recipient electronic device. Moreover, the effective capacity may be estimated based at least in part on an efficiency of the wireless link. Next, the interface circuit may provide the rate feedback intended for the video encoder based at least in part on the estimated communication performance metric. In some embodiments, when beamforming occurs, the rate feedback may be reset. 1. An electronic device , comprising:a node configured to communicatively couple to an antenna; and transmit, via the node, one or more packets or frames associated with a data stream that are intended for the recipient electronic device, wherein the data stream is associated with a video encoder;', 'estimate a communication performance metric associated with at least the transmission of the one or more packets or frames; and', 'provide rate feedback intended for the video encoder based at least in part on the estimated communication performance metric., 'an interface circuit, communicatively coupled to the node, configured to communicate with a recipient electronic device, and configured to2. The electronic device of claim 1 , wherein the estimated communication performance metric comprises an effective capacity associated with a wireless link between the electronic device and the recipient electronic device.3. The electronic device of claim 2 , wherein the effective capacity is estimated based at least in part on an ...

COEXISTENCE TECHNIQUES FOR WIDE AREA NETWORK DEVICES OPERATING IN UNLICENSED BANDS

A communication device associated with a first wireless communication network transmits an indication that a communication channel in an unlicensed frequency band is being utilized by the first wireless communication network. The indication is transmitted to an access point of a second wireless communication network. The first wireless communication network utilizes a first wireless communication protocol developed for use in licensed frequency bands, and the second wireless communication network utilizes a second wireless communication protocol developed for use in the unlicensed frequency band. The indication is transmitted by the communication device to prompt the access point of the second wireless communication network, to determine that i) the communication channel cannot be used by the second wireless communication network, or ii) the second wireless communication network is to temporarily yield the communication channel to the first wireless communication network. 1. (canceled)2. A method , comprising:receiving, at an access point of a first wireless communication network, an indication that a communication channel in an unlicensed frequency band is being utilized by a second wireless communication network, wherein the first wireless communication network utilizes a first wireless communication protocol developed for use in the unlicensed frequency band, wherein the second wireless communication network utilizes a second wireless communication protocol developed for use in frequency bands that are licensed by a government entity for wireless communication applications, and wherein the government entity does not require licenses to use the unlicensed frequency band; andin response to receiving the indication that the communication channel in the unlicensed frequency band is being utilized by the second wireless communication network that utilizes the second wireless communication protocol developed for use in frequency bands that are licensed by the ...

PHYSICAL LAYER FRAME FORMAT FOR WLAN

In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, the PHY data unit conforming to a first communication protocol, a first communication device generates a PHY preamble for the PHY data unit, including: generating a signal field, including the signal field and a duplicate of the signal field in the PHY preamble, and formatting the PHY preamble such that a first portion of the PHY preamble is decodable by a second communication device that conforms to a second communication protocol, but does not conform to the first communication protocol, to determine a duration of the PHY data unit based on the first portion of the PHY preamble. The first communication device generates the PHY data unit to include the PHY preamble and a PHY payload. 1. A method for generating a physical layer (PHY) data unit for transmission via a communication channel , the PHY data unit conforming to a first communication protocol , the method comprising: generating a signal field,', 'including the signal field and a duplicate of the signal field in the PHY preamble, and', 'formatting the PHY preamble such that a first portion of the PHY preamble is decodable by a second communication device that conforms to a second communication protocol, but does not conform to the first communication protocol, to determine a duration of the PHY data unit based on the first portion of the PHY preamble; and, 'generating, at a first communication device, a PHY preamble for the PHY data unit, includinggenerating, at the first communication device, the PHY data unit to include the PHY preamble and a PHY payload.2. The method of claim 1 , wherein:the signal field is a legacy signal field that is decodable by the second communication device;the legacy signal field is included in the first portion of the PHY preamble; andthe legacy signal field includes information that indicates the duration of the PHY data unit.3. The method of claim 2 , wherein generating the ...

Method and apparatus for uplink orthogonal frequency division multiple access

A first communication device transmits a trigger frame transmission to multiple second communication devices to prompt the multiple second communication devices to simultaneously transmit in multiple communication sub-channels. The first communication device receives one or more transmissions from one or more of the second communication devices in less than all of the communication sub-channels. The first communication device generates acknowledgment information for the one or more transmissions from the one or more of the second communication devices, and transmits the acknowledgment information via all of communication sub-channels.

TRIGGER FRAME FORMAT FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

Multiple trigger frames are generated at a first communication device to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. The multiple trigger frames include a broadcast trigger frame that includes information to indicate transmission parameters for a first subset of the second communication devices, and one or more unicast trigger frames, each of the one or more unicast trigger frame including information to indicate transmission parameters for a particular second communication device in a second subset of the second communication devices. The broadcast trigger frame is transmitted, in a first frequency portion of a downlink OFDMA transmission, to the first subset of the second communication devices, and respective unicast trigger frames are transmitted, in respective second frequency portions of the downlink OFDMA transmission, to the second subset of the second communication devices. 1. (canceled)2. A method for communicating in a wireless communication network , the method comprising: generating a first RU allocation subfield in a first per-station information field of the first trigger frame to include an indication of first frequency resources, and', 'generating a first STA-ID subfield in the first per-station information field of the first trigger frame to include a reserved station identifier value that indicates that multiple client stations are permitted to contend for the first frequency resources as part of a contention-based transmission;, 'generating, at an access point, one or more trigger frames to trigger an uplink multi-user (MU) transmission by one or more client stations, wherein each of the one or more trigger frames is generated to include a medium access control (MAC) header portion and a MAC frame body portion, wherein each MAC frame body portion is generated to include one or more per-station information fields that include respective information to indicate respective ...

Acknowledgment of Uplink Orthogonal Frequency Division Multiple Access Transmission

A first communication device receives an uplink orthogonal frequency multiple access (OFDMA) transmission. The uplink OFDMA transmission includes respective transmissions from multiple second communication devices, and the respective transmissions from the multiple second communication devices include indications of respective acknowledgment policies corresponding to the respective transmissions from the multiple second communication devices. The first communication device generates one or more acknowledgment physical layer (PHY) data units to acknowledge at least a portion of the uplink OFDMA transmission, where the one or more acknowledgment PHY data units do not comply with at least one of the acknowledgment policies corresponding to the uplink OFDMA transmission. The first communication device transmits the one or more acknowledgment PHY data units to acknowledge the at least the portion of the uplink OFDMA transmission. 1. A method for communicating in a wireless communication network , the method comprising:receiving, at the first communication device, an uplink orthogonal frequency multiple access (OFDMA) transmission, wherein the uplink OFDMA transmission includes respective transmissions from the multiple second communication devices, wherein the respective transmissions from the multiple second communication devices include indications of respective acknowledgment policies corresponding to the respective transmissions from the multiple second communication devices;generating, at the first communication device, one or more acknowledgment physical layer (PHY) data units to acknowledge at least a portion of the uplink OFDMA transmission, wherein the one or more acknowledgment PHY data units do not comply with at least one of the acknowledgment policies corresponding to the uplink OFDMA transmission; andtransmitting, with the first communication device, the one or more acknowledgment PHY data units to acknowledge the at least the portion of the uplink OFDMA ...

BACKOFF OPERATION IN CONNECTION WITH SPATIAL REUSE

A communication device receives a signal during a backoff period of a backoff procedure, wherein the communication device is part of a first communication network. In response to determining that i) the signal is valid, ii) the signal is from another communication network, and iii) the power level of the signal does not meet a threshold that is higher than a default threshold, the communication device continues a count of a backoff timer during reception of the signal. In connection with comparing the power level of the signal to the threshold higher than the default threshold, the communication device sets a transmit power level to a reduced power level that is lower than a default power level. The communication device transmits at a transmit power level that is less than or equal to the reduced transmit power level in response to the backoff timer expiring. 1. A method , comprising:receiving, at a communication device, a signal during a backoff period of a backoff procedure, wherein the communication device is part of a first communication network; determining, at the communication device, whether i) the signal is valid, ii) the signal is from another communication network, and iii) a power level of the signal meets a threshold that a) is higher than a default threshold for the backoff procedure, and b) is for analyzing valid signals not from the first communication network,', 'in response to determining that i) the signal is valid, ii) the signal is from another communication network, and iii) the power level of the signal does not meet the threshold, continuing a count of a backoff timer, at the communication device, during reception of the signal, the backoff timer for measuring a backoff time period, and', 'in connection with comparing the power level of the signal to the threshold that is higher than the default threshold, setting, at the communication device, a transmit power level to be used when the communication device transmits responsive to the backoff ...

Medium Access Control for Multi-Channel OFDM in a Wireless Local Area Network

A first communication device allocates respective sub-channels of an orthogonal frequency division multiplexing (OFDM) channel to two or more second communication devices for uplink orthogonal frequency division multiple access (OFDMA) transmission from the two or more second communication devices. A first sub-channel is allocated to a first one of the second communication devices and a second sub-channel is allocated to a second one of the second communication devices. The first communication device provides, to the second communication devices, indications of the respective sub-channels allocated to the second communication devices. The first communication device receives an uplink OFDMA data unit that includes a first OFDM data unit transmitted from the first one of the second communication devices via the first sub-channel, and a second OFDM data unit transmitted from the second one of the second communication devices via the second sub-channel. 1. A method for simultaneously communication with multiple communication devices in a wireless local area network , the method comprising:allocating, by a first communication device, respective sub-channels of an orthogonal frequency division multiplexing (OFDM) channel to two or more second communication devices for uplink orthogonal frequency division multiple access (OFDMA) transmission from the two or more second communication devices, including allocating a first sub-channel to a first one of the two or more second communication devices and a second sub-channel to a second one of the two or more second communication devices;providing, from the first communication device to the two or more second communication devices, indications of the respective sub-channels allocated for uplink OFDMA transmission from the two or more second communication devices; andreceiving, at the first communication device, an uplink OFDMA data unit that includes at least a first OFDM data unit from the first one of the two or more second ...

Uplink Spatial Relation Indication and Power Control

Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform power control for uplink (UL) reference signals (RS). A UE may determine spatial configuration for UL RS based on another communication. A UE may determine an updated pathloss within a reduced implementation following an update of downlink (DL) RS. A UE may reset a power control factor in response to receiving an update. 1. A user equipment device (UE) , comprising:a radio; and establish a connection with a cellular base station;', 'receive, from the cellular base station, a configuration update related to downlink reference signals for measuring pathloss, wherein the configuration update provides reduced implementation time;', 'receive, from the cellular base station, updated downlink reference signals;', 'determine, within the reduced implementation time, updated pathloss based on the updated downlink reference signals; and', 'transmit uplink reference signals using the updated pathloss for power control., 'a processor operably coupled to the radio and configured to cause the UE to2. The UE of claim 1 , wherein the processor is further configured to cause the UE to: receive, from the cellular base station, first downlink reference signals; and', {'b': 3', '3, 'determine, based on the first downlink reference signals, a first pathloss, wherein the first pathloss is determined using a layer (L) reference signal received power (RSRP).'}], 'prior to receiving the configuration update311. The UE of claim 2 , wherein the updated pathloss is determined based on a layer (L) RSRP.43. The UE of claim 2 , wherein the updated pathloss is determined based on a L-RSRP claim 2 , wherein the processor is further configured to cause the UE to reset a filter in response to the configuration update.5113. The UE of claim 2 , wherein the updated pathloss is determined based on a layer (L) RSRP for a first period of time claim 2 , wherein the updated pathloss is determined ...

ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS LOCAL AREA NETWORK

A method for generating an orthogonal frequency division multiple access (OFDMA) data unit is described. A plurality of different orthogonal frequency division multiplex (OFDM) tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices including a first device and second device. The plurality of different OFDM tone blocks includes at least a first OFDM tone block assigned to the first device and a second OFDM tone block assigned to the second device. The first OFDM tone block and the second OFDM tone block together span a bandwidth equal to a smallest channel bandwidth of a legacy WLAN communication protocol. An OFDMA data unit is generated for the WLAN communication channel. The OFDMA unit includes a preamble portion and a data portion. The preamble portion has i) at least a legacy portion that spans the entire WLAN communication channel, ii) a first non-legacy portion that spans the first OFDM tone block, and iii) a second non-legacy portion that spans the second OFDM tone block. 1. A method , comprising: the plurality of different OFDM tone blocks includes at least a first OFDM tone block assigned to the first device and a second OFDM tone block assigned to the second device, and', 'the first OFDM tone block and the second OFDM tone block together span a bandwidth equal to a smallest channel bandwidth of a legacy WLAN communication protocol; and, 'assigning a plurality of different orthogonal frequency division multiplex (OFDM) tone blocks for a wireless local area network (WLAN) communication channel to a plurality of devices including a first device and second device, wherein'}generating an orthogonal frequency division multiple access (OFDMA) data unit for the WLAN communication channel, the OFDMA unit including a preamble portion and a data portion, the preamble portion having i) at least a legacy portion that spans the entire WLAN communication channel, ii) a first non-legacy portion that spans the first ...

COEXISTENCE TECHNIQUES FOR WIDE AREA NETWORK DEVICES OPERATING IN UNLICENSED BANDS

A communication device is configured to operate in a first wireless communication network that utilizes a communication protocol developed for use in frequency bands that are licensed by a government entity for wireless communication applications. The communication device determines whether one or more communication channels in an unlicensed frequency band are not being utilized by any second wireless communication networks, wherein the government entity does not require licenses to use the unlicensed frequency band. In response to determining that one or more communication channels in the unlicensed frequency band are not being utilized by any second wireless communication networks, the communication device selects a set of one or more communication channels in the one or more communication channels for use by the first wireless communication network, and utilizes the set of one or more communication channels for communications in the first wireless communication network. 1. A method implemented by a communication device that is configured to operate in a first wireless communication network that utilizes a communication protocol developed for use in frequency bands that are licensed by a government entity for wireless communication applications , the method comprising:determining, at the communication device, whether one or more communication channels in an unlicensed frequency band are not being utilized by any second wireless communication networks, wherein the government entity does not require licenses to use the unlicensed frequency band;in response to determining that one or more communication channels in the unlicensed frequency band are not being utilized by any second wireless communication networks, selecting, at the communication device, a set of one or more communication channels in the one or more communication channels for use by the first wireless communication network; andutilizing, at the communication device, the set of one or more communication ...

SOUNDING AND TONE BLOCK ALLOCATION FOR ORTHOGONAL FREQUENCY MULTIPLE ACCESS (OFDMA) IN WIRELESS LOCAL AREA NETWORKS

A first communication device obtains, for each second communication device of a plurality of second communication devices, one or more quality indicators corresponding to one or more sub-channel blocks of an orthogonal frequency division multiplexing (OFDM) communication channel associated with the second communication device. The first communication device selects, based on the quality indicators obtained for each of at least some of the second communication devices, a group of second communication devices for orthogonal frequency division multiple access (OFDMA) communication. The first communication device transmits, to the group of second communication devices, at least one OFDMA data unit that includes respective OFDM data units directed to the two or more second communication devices of the group. The respective OFDM data units are transmitted in respective sub-channel blocks allocated to the two or more second communication devices of the group. 1. A method for simultaneously communicating with multiple communication devices in a communication network , the method comprising:obtaining, at a first communication device for each second communication device of a plurality of second communication devices, one or more quality indicators corresponding to one or more sub-channel blocks of an orthogonal frequency division multiplexing (OFDM) communication channel associated with the second communication device;selecting, at the first communication device based on the quality indicators obtained for each of at least some of the second communication devices, a group of second communication devices for orthogonal frequency division multiple access (OFDMA) communication, wherein the group includes two or more second communication devices of the plurality of second communication devices; andtransmitting, from the first communication device to the group of second communication devices, at least one OFDMA data unit that includes respective OFDM data units directed to the two ...

MEDIUM ACCESS PROTECTION AND BANDWIDTH NEGOTIATION IN A WIRELESS LOCAL AREA NETWORK

Respective sub-channels of an OFDM channel are allocated by a first device to second devices. A first control frame, transmitted from the first device to the second devices, indicates that the second devices are requested to transmit a second control frame to the first device. Respective second control frames are received from at the first device from least some of the second devices. A second control frame received from a particular second device indicates that at least a portion of the sub-channel allocated to the second device is available. An OFDMA data unit is transmitted by the first device. The OFDMA data unit includes respective OFDM data units transmitted to the at least some of the second devices. Each OFDM data unit is transmitted to a particular second device in the portion of the sub-channel indicated to be available by the second control frame received from the second device. 1. A method for simultaneous communication in a wireless local area network that includes a first communication device and multiple second communication devices , the method comprising:allocating, by the first communication device, respective sub-channels of an orthogonal frequency division multiplexing (OFDM) channel to two or more of the second communication devices;transmitting a first control frame to the two or more second communication devices, wherein the first control frame indicates that the two or more second communication devices are requested to transmit a second control frame to the first communication device;receiving, at the first communication device from at least some of the two or more second communication devices, respective second control frames, wherein the second control frames are transmitted by the at least some of the two or more second communication devices in the respective sub-channels allocated to the at least some of the two or more second communication devices, and wherein a second control frame transmitted by a particular second communication device ...

DYNAMIC POWER REDUCTION REQUESTS FOR WIRELESS COMMUNICATIONS

Methods and systems for controlling uplink (UL) transmission power of a user equipment (UE) electronic device includes determining, using the UE electronic device, that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions. Based on the determination that maximum power availability is not appropriate the UE electronic device sends a request to the wireless network node to reduce power for communication with the wireless network node. Based on the request, the UE electronic device communicates at a reduced power level for communications with the wireless network node. 1. An electronic device , comprising:one or more antennas configured to communicate with one or more wireless network nodes; and encode maximum allowed transit power (PCMAX) values to incorporate power reductions for a plurality of cells through which the electronic device connects to one or more wireless networks;', 'cause the one or more antennas to transmit the PCMAX values from the electronic device to respective cells of the plurality of cells using power headroom reports; and', 'cause the one or more antennas to communicate with a cell of the plurality of cells using a permissible power usage level corresponding to a respective power headroom report of the power headroom reports., 'memory storing instructions that, when executed by one or more processors, are configured to cause the one or more processors to2. The electronic device of claim 1 , the PCMAX values comprising PCMAX values for a plurality of carrier frequencies for at least one of the cells of the plurality of cells.3. The electronic device of claim 1 , the plurality of cells comprising Next Generation NodeB (gNB) nodes.4. The electronic device of claim 1 , the PCMAX values being based at least in part on capabilities of the electronic device.5. The electronic device of claim 4 , the capabilities being used to determine the power reductions prior to ...

Signal fields in a high efficiency wireless local area network (wlan) data unit

A first signal field to be included in a preamble of a physical layer (PHY) data unit is generated. The first signal field includes formatting information for a second signal field to be included in the PHY data unit. The formatting information includes an indication of a number of orthogonal frequency division multiplexing (OFDM) symbols in the second signal field. The second signal field is generated according to the formatting information in the first signal field. The second signal field includes formatting information for a data portion of the PHY data unit. The data portion is generated according to the formatting information in the second signal field. The preamble is generated to include at least the first signal field and the second signal field, The PHY data unit is generated to include the preamble and the data portion.

PHYSICAL LAYER FRAME FORMAT FOR WLAN

A first communication device generates a physical layer (PHY) preamble for a PHY data unit that conforms to a first communication protocol. A first portion of the PHY preamble is generated to include a first signal field having a length subfield that indicates a length of the PHY data unit, A second signal field is generated, and the second signal field and a duplicate of the second signal field are included in the PHY preamble. The PHY preamble is formatted such that the first portion of the PHY preamble is decodable by any second communication device that conforms to a second communication protocol, but does not conform to the first communication protocol, to determine a duration of the PHY data unit based on the length subfield in the first portion of the PHY preamble. The first communication device generates the PHY data unit to include the PHY preamble. 1. A method for generating a physical layer (PHY) data unit for transmission via a communication channel , the PHY data unit conforming to a first communication protocol , the method comprising: generating a first portion of the PHY preamble to include a first signal field having a length subfield that indicates a length of the PHY data unit,', 'generating a second signal field,', 'including in the PHY preamble the second signal field and a duplicate of the second signal field, and', 'formatting the PHY preamble such that the first portion of the PHY preamble is decodable by any second communication device that conforms to a second communication protocol, but does not conform to the first communication protocol, to determine a duration of the PHY data unit based on the length subfield in the first portion of the PHY preamble; and, 'generating, at a first communication device, a PHY preamble for the PHY data unit, includinggenerating, at the first communication device, the PHY data unit to include the PHY preamble.2. The method of claim 1 , wherein:the first signal field is a legacy signal field that is decodable ...

UPLINK TRANSMIT BEAM SWEEP

Systems and methods related to partial beam correspondence may be used to address potential limitations of beamforming wireless networks. A user equipment electronic device and/or wireless network identifies a subset of available transmitter beams for the user equipment electronic device that are indicated as similar to a downlink reference signal received at the user equipment electronic device from a wireless network node. The user equipment electronic device sweeps the subset of available transmitter beams for communication with the wireless network node and uses a best beam from the sweep to communicate with the wireless network node. 1. A method , comprising:receiving a downlink reference signal at a user equipment electronic device (UE) from a wireless network node;identifying a subset of available transmitter beams for UE that are indicated as similar to a downlink reference signal; andsweeping, using the UE, the subset of available transmitter beams for communication with the wireless network node.2. The method of claim 1 , wherein identifying the subset of the available transmitter beams comprises selecting the available transmitter beams near a direction corresponding to the downlink reference signal.3. The method of claim 1 , comprising:detecting human body entering into proximity of the UE in a path between the wireless network node and the UE via a currently used transmitter beam, wherein the currently used transmitter beam is in the subset of available transmitter beams;determining that transmission at a current power level through the currently used transmitter beam would exceed a maximum permissive exposure (MPE) for the human body; andin response the determination that the MPE would be exceeded, reducing power for the currently used transmitter beam.4. The method of claim 3 , comprising claim 3 , in response to the reduced power for the currently used transmitter beam claim 3 , sweeping through the subset of available transmitter beams to determine ...

Systems and methods for transmitting a preamble within a wireless local area network (wlan)

Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. It may be determined that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration. The first preamble portion via beamforming may be transmitted based on a first beamforming matrix. When a transmission mode of the second preamble portion is beamforming, a second beamforming matrix may be generated based on the first beamforming matrix, each tone for the second preamble portion may be calculated based on the second beamforming matrix. Each calculated tone may be transmitted in accordance with the wireless local area network communication protocol.

MULTIPLE BASIC SERVICE SET SUPPORT

An access point (AP) device determines a set of basic service set identifiers (BSSIDs). Each BSSID includes a same group of most significant bits (MSBs) and a different group of n least significant bits (LSBs). The AP device assigns respective BSSIDs from the set of BSSIDs to multiple virtual APs, and designates one of the assigned BSSIDs as a reference BSSID that corresponds to a transmitter address (TA) for frames intended for client stations associated with more than one virtual AP. The AP device generates and transmits a management frame that includes i) a header with a TA field set to one of the assigned BSSIDs, and ii) a frame body with a plurality of fields that includes a) a first field set to n, and b) a second field set to the n LSBs of the reference BSSID. The TA field, the first field, and the second field in the management frame indicate the reference BSSID to a client station that receives the management frame. 1. A method , comprising:determining, at an access point (AP) device, a set of basic service set identifiers (BSSIDs), wherein each BSSID in the set includes a same group of most significant bits (MSBs), wherein each BSSID in the set includes a different group of n least significant bits (LSBs), and wherein n is a positive integer;assigning, at the AP device, respective BSSIDs from the set of BSSIDs to multiple virtual APs implemented by the AP device;designating, at the AP device, one of the assigned BSSIDs as a reference BSSID, wherein the reference BSSID corresponds to a transmitter address (TA) for frames intended for client stations associated with more than one virtual AP implemented by the AP device;generating, at the AP device, a management frame that includes i) a header with a TA field set to one of the assigned BSSIDs, and ii) a frame body with a plurality of fields that includes a) a first field set to n, and b) a second field set to the n LSBs of the reference BSSID; andtransmitting, by the AP device, the management frame, wherein ...

DYNAMIC POWER REDUCTION REQUESTS FOR WIRELESS COMMUNICATIONS

Methods and systems for controlling uplink (UL) transmission power of a user equipment (UE) electronic device includes determining, using the UE electronic device, that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions. Based on the determination that maximum power availability is not appropriate the UE electronic device sends a request to the wireless network node to reduce power for communication with the wireless network node. Based on the request, the UE electronic device communicates at a reduced power level for communications with the wireless network node. 1. A method , comprising:determining, using a user equipment electronic device (UE), that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions;sending, using the UE, a request to wireless network node to reduce power for communication with the wireless network node; andcommunicating, using the UE, at a reduced power level for communications with the wireless network node.2. The method of claim 1 , wherein the wireless network node comprises a Next Generation NodeB (gNB).3. The method of claim 1 , wherein sending the request comprises sending UE capabilities for the UE to indicate the reduced power level.4. The method of claim 3 , wherein the UE capabilities are set by determining the maximum power availability is inappropriate prior to establishing communication with the wireless network node.5. The method of claim 1 , wherein determining the maximum power availability is inappropriate comprises determining whether an event occurs during communication between the UE and the wireless network node.6. The method of claim 5 , wherein the event comprises the UE overheating.7. The method of claim 5 , wherein the event comprises that a human body has entered into proximity of the UE in a communication path between the UE and the wireless network node and ...

BEAM SWEEPING WITH SLOT AGGREGATION

Methods and systems include beamformed wireless communications to and from a user equipment electronic device. During operation of the user equipment electronic device, a change in slot aggregation is made. Using the aggregated slots, the user equipment electronic device and/or a wireless network utilize beam sweeps to determine a best beam pairing by repeating a shared channel in the aggregated slots with a beam sweep of multiple beams between the user equipment electronic device and the wireless network. 1. A method , comprising:at a user equipment electronic device (UE), transmitting wireless communications to a wireless network and receiving wireless communications from the wireless network using beamforming;during operation of the UE, determining that a threshold for a parameter has been crossed;determining that the threshold corresponds to a change in slot aggregation;in response to determination that the threshold corresponds to a change in slot aggregation, changing aggregation of slots of the wireless communications; andrepeating a shared channel in the aggregated slots with a beam sweep of a plurality of beams of the wireless communications.2. The method of claim 1 , wherein the plurality of beams comprises transmission beams of the UE.3. The method of claim 1 , wherein the plurality of beams comprises receiving beams of the UE.4. The method of claim 3 , wherein the shared channel comprises a physical uplink shared channel (PUSCH) claim 3 , a physical downlink shared channel (PDSCH) claim 3 , or both the PUSCH and the PDSCH.5. The method of claim 1 , wherein the beam sweep comprises multiple beams from multiple panels of the UE.6. The method of claim 1 , wherein the beam sweep comprises multiple beams in different directions from the same panel.7. The method of claim 1 , wherein changing aggregation of slots of the wireless communications comprises:sending a request to the wireless network to change aggregation of the aggregated slots; andreceiving, from ...

SYSTEMS AND METHODS FOR PROVIDING RESOURCE SIGNALING WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN)

Embodiments described herein provide a method for resource unit signaling with reduced data bits in a wireless local area network. At a wireless transceiver, a data frame may be obtained for transmission. The data frame includes a first preamble portion and a second preamble portion compliant with a wireless local area network communication protocol. When an available resource unit for transmitting the data frame is less than an allowed bandwidth, the first preamble portion and the second preamble portion may be configured with resource unit signaling bits. When the available resource unit is greater than or equal to the allowed bandwidth, the resource unit may be virtually divided into a plurality of channels. At least one of the first preamble portion and the second preamble portion may be configured with a first number of bits representing a number of users spatially multiplexed on a channel from the plurality of channels 120.-. (canceled)21. A method for providing resource unit signaling with reduced data bits in a wireless local area network , the method comprising:determining whether a resource unit for transmitting a data frame is greater than an allowed bandwidth; virtually dividing the resource unit into a plurality of channels;', 'for each half portion of the channels from the plurality of channels, configuring a signal field-B (SIGB) portion of the data frame to indicate a subset of client stations spatially multiplexed on the resource unit; and', 'transmitting the data frame including the configured SIGB portions., 'in response to determining that the resource unit is greater than the allowed bandwidth22. The method of claim 21 , further comprising:evenly distributing a set of spatially multiplexed client stations into each half portion of the channels from the plurality of channels.23. The method of claim 22 , further comprising:for each half portion of the channels from the plurality of channels, allocating a subset of consecutively indexed client ...

CONTENTION-BASED ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

A communication device receives a trigger frame that is configured to: trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, and indicate a predetermined length of the contention-based uplink OFDMA transmission, wherein the predetermined length corresponds to contention-based uplink OFDMA transmissions. Responsive to receiving the trigger frame, the communication device generates a data unit having the predetermined length, and responsive to receiving the trigger frame, transmits the data unit as part of a contention-based uplink OFDMA transmission. 1 wherein the trigger frame is configured to indicate that multiple second communication devices can contend for a contiguous band of OFDM tones as part of the uplink OFDMA transmission,', 'wherein the trigger frame includes power control information that includes i) a transmission power value that indicates a transmission power used by the first communication device to transmit the trigger frame and ii) a target received power value that indicates a target received power, at the first communication device, for the uplink OFDMA transmission, and', 'wherein the power control information, including i) the transmission power value, and ii) the target received power value, is for use by communication devices participating in the uplink OFDMA transmission to determine respective transmission power levels for the uplink OFDMA transmission;, 'generating, at a first communication device, a trigger frame to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission,'}transmitting, with the first communication device, the trigger frame; andreceiving, at the first communication device, the uplink OFDMA transmission in response to the trigger frame.. A method for communicating in a wireless communication network, the method comprising: This application is a continuation of U.S. patent application Ser. No. 15/337,749, now U.S. Pat. No. 10,470, ...

TRIGGER FRAME FORMAT FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

Multiple trigger frames are generated at a first communication device to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. The multiple trigger frames include a broadcast trigger frame that includes information to indicate transmission parameters for a first subset of the second communication devices, and one or more unicast trigger frames, each of the one or more unicast trigger frame including information to indicate transmission parameters for a particular second communication device in a second subset of the second communication devices. The broadcast trigger frame is transmitted, in a first frequency portion of a downlink OFDMA transmission, to the first subset of the second communication devices, and respective unicast trigger frames are transmitted, in respective second frequency portions of the downlink OFDMA transmission, to the second subset of the second communication devices. 1. A method for communicating in a wireless communication network , the method comprising: (i) a broadcast trigger frame that includes information to indicate transmission parameters for a first subset of the second communication devices and', '(ii) one or more unicast trigger frames, wherein each of the one or more unicast trigger frame includes information to indicate transmission parameters for a particular second communication device in a second subset of the second communication devices;, 'generating, at a first communication device, multiple trigger frames to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices, including generating'} (i) transmitting the broadcast trigger frame to the first subset of the second communication devices, wherein the broadcast trigger frame is transmitted in a first frequency portion of a downlink OFDMA transmission to the multiple second communication devices, and', '(ii) transmitting the unicast trigger frames to ...

TRIGGER FRAME FORMAT FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

One or more trigger frames are generated at a first communication device to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. Each of the one or more trigger frames (i) includes an indication of a trigger type and (ii) is formatted according to the indicated trigger type. The first communication device transmits the one or more trigger frames to the multiple second communication devices. The first device then receives the triggered uplink OFDMA transmission that includes respective transmissions from the multiple second communication devices. 1. A method for communicating in a wireless communication network , the method comprising:generating, at a first communication device, one or more trigger frames to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices, wherein each of the one or more trigger frames (i) includes an indication of a trigger type and (ii) is formatted according to the indicated trigger type;transmitting, with the first communication device, the one or more trigger frames to the multiple second communication devices; andreceiving, at the first communication device, the triggered uplink OFDMA transmission, wherein the triggered uplink OFDMA transmission includes respective transmissions from the multiple second communication devices.2. The method of claim 1 , wherein:generating the one or more trigger frames comprises generating a broadcast trigger frame that includes information to indicate respective transmission parameters for the multiple second communication devices, andtransmitting the one or more trigger frames comprises transmitting the broadcast trigger frame to the multiple second communication devices.3. The method of claim 1 , wherein:generating the one or more trigger frames comprises generating multiple unicast trigger frames, wherein each unicast trigger frame includes information to indicate transmission ...

BEAMFORMING SCHEME SWITCHING

The present application relates to devices and components including apparatus, systems, and methods to provide beamforming scheme selection and signaling in wireless communication systems. 1. One or more non-transitory computer-readable media having instructions that , when executed by one or more processors , cause a user equipment (UE) to:determine a beamforming scheme supported by the UE, the beamforming scheme to include a channel-based beamforming scheme or a codebook-based beamforming scheme;generate a capability report or media access control (MAC) control element (CE) to include information about the beamforming scheme supported by the UE; andtransmit the capability report or MAC CE to a gNB.2. The one or more non-transitory computer-readable media of claim 1 , wherein the information includes a beamforming scheme identifier corresponding to the beamforming scheme.3. The one or more non-transitory computer-readable media of claim 1 , wherein the information is to indicate a parameter that is associated with the beamforming scheme.4. The one or more non-transitory computer-readable storage media of claim 3 , wherein the parameter is a measurement restriction parameter for reference signal receive power (RSRP) or signal to interference and noise ratio (SINR) and is associated with the codebook-based beamforming scheme.5. The one or more non-transitory computer-readable media of claim 3 , wherein the parameter is a timing window parameter for a beamforming management reference signal burst that is associated with the channel-based beamforming scheme.6. The one or more non-transitory computer-readable media of claim 1 , wherein the information includes a beamforming scheme supported for individual beam management-reference signal (BM-RS) types.7. The one or more non-transitory computer-readable media of claim 6 , wherein the individual BM-RS types include a synchronization signal and physical broadcast channel block (SSB) for Layer 1 reference signal receive ...

Beam Failure Detection

Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform beam failure detection. The UE may establish communication with a base station. The UE may determine one or more beams to perform downlink communication from the base station. The UE may receive, from the base station, an indication of a first type of downlink reference signals to perform beam failure detection. The UE may perform signal quality measurements for the one or more beams using the first type of downlink reference signals. The UE may determine beam failure of at least one beam of the one or more beams based on said performing signal quality measurements. 1. An apparatus , comprising: establish communication with a base station;', 'determine one or more beams to perform downlink communication from the base station;', 'receive, from the base station, an indication of a first type of downlink reference signals to perform beam failure detection;', 'perform signal quality measurements for the one or more beams using the first type of downlink reference signals; and', 'determine beam failure of at least one beam of the one or more beams based on said performing signal quality measurements., 'one or more processors, configured to cause a user equipment device (UE), to2. The apparatus of claim 1 , wherein said determining beam failure is performed by comparing the signal quality measurements to a threshold.3. The apparatus of claim 1 , wherein said determining beam failure comprises claim 1 , for n consecutive times:performing a respective signal quality measurement fora first beam; andcomparing the respective signal quality measurement to a signal quality threshold; wherein beam failure is determined when the respective signal quality measurement falls below a signal quality threshold n consecutive times.4. The apparatus of claim 1 , wherein said receiving the indication of downlink reference signals comprises:receiving radio resource control (RRC) ...

CHANNEL BASED BEAMFORMING

The present application relates to devices and components including apparatus, systems, and methods to provide channel-based beamforming in wireless communication systems. 1. One or more non-transitory computer-readable media having instructions that , when executed by one or more processors , cause a user equipment (UE) to:process an information element (IE) to determine a plurality of orthogonal frequency division multiplexing (OFDM) symbols for a channel state information-reference signal (CSI-RS) resource;receive a plurality of CSI-RSs over the plurality of OFDM symbols for the CSI-RS resource;determine a plurality of estimated channels corresponding to each of the plurality of OFDM symbols by applying different sequences from a predetermined matrix;construct a channel based on the plurality of estimated channels; anddetermine a receive beam based on the channel and the predetermined matrix.2. The one or more non-transitory computer-readable media of claim 1 , wherein each CSI-RS of the plurality of CSI-RSs is mapped to a corresponding OFDM symbol using a common resource element mapping pattern.3. The one or more non-transitory computer-readable media of claim 1 , wherein individual CSI-RSs of the plurality of CSI-RSs are mapped to corresponding OFDM symbols using individual RE mapping patterns.4. The one or more non-transitory computer-readable media of claim 1 , wherein each CSI-RS of the plurality of CSI-RSs is mapped to a respective physical resource block within a bandwidth part.5. The one or more non-transitory computer-readable media of claim 4 , wherein the instructions claim 4 , when executed claim 4 , further cause the UE to: determine claim 4 , based on a predetermined configuration or a control signal claim 4 , an offset between adjacent physical resource blocks that include a CSI-RS of the plurality of CSI-RSs.6. The one or more non-transitory computer-readable media of claim 1 , wherein the instructions claim 1 , when executed claim 1 , further ...

Trigger-Based Single User Uplink Transmission

A first communication device receives, from a second communication device, a trigger frame. The first communication device generates a single-user (SU) physical layer (PHY) protocol data unit that includes a PHY protocol payload, wherein the PHY protocol payload include information other than information that acknowledges a previous transmission from the second communication device. In response to the trigger frame, the first communication device transmits the SU PHY protocol data unit to the second communication device, such that the SU PHY protocol data unit is transmitted prior to the first communication device transmitting any other PHY protocol data unit after receiving the trigger frame. 1. A method , comprising:receiving, at a first communication device from a second communication device, a trigger frame;generating, at the first communication device, a single-user (SU) physical layer (PHY) protocol data unit that includes a PHY protocol payload, wherein the PHY protocol payload include information other than information that acknowledges a previous transmission from the second communication device; andin response to the trigger frame, transmitting the SU PHY protocol data unit from the first communication device to the second communication device, wherein the first communication device transmits the SU PHY protocol data unit prior to the first communication device transmitting any other PHY protocol data unit after receiving the trigger frame.2. The method of claim 1 , wherein generating the SU PHY protocol data unit comprises generating the SU PHY protocol data unit to omit one or more training fields from a preamble of the SU PHY protocol data unit claim 1 , wherein a communication protocol requires that the first communication device include the one or more training fields in preambles of PHY protocol data units that are not transmitted in response to trigger frames from the second communication device.3. The method of claim 1 , wherein generating the SU ...

Radio Resource Management Signal Reception

Apparatuses, systems, and methods for radio resource management (RRM) signal reception. A user equipment device (UE) may receive, via a first reception path, an RRM related signal and receive, via a second reception path, a non-RRM related signal that may be multiplexed with the RRM related signal onto a symbol. The first reception path may be a first antenna port of an antenna panel or a first antenna panel of the UE and the second reception path may be a second antenna port of the antenna panel or a second antenna panel of the UE. The RRM related signal may include a reference signal for RRM. and may be included in a non-zero power (NZP) interference measurement. 1. A user equipment device (UE) , comprising:at least one antenna;at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); andone or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications; receive, via a first reception path of the UE, a radio resource management (RRM) related signal via a symbol; and', 'receive, via a second reception path of the UE, a non-RRM related signal via the symbol, wherein the RRM related signal and non-RRM related signal are multiplexed onto the symbol., 'wherein the one or more processors are configured to cause the UE to2. The UE of claim 1 , 'perform beam sweeping to receive the RRM related signal.', 'wherein, to receive, via the first reception path, the RRM related signal, the one or more processors are further configured to cause the UE to3. The UE of claim 1 , 'transmit, to a network, a UE capability message indicating a number of receiving layers of the UE, wherein the non-RRM related signal has a transmission rank based on a rank restriction configured by the network and the number of receiving layers of the UE.', 'wherein the one or more processors are further ...

Systems, apparatuses and methods for a signal extension padding scheme

Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.

SYMBOL VECTOR-LEVEL COMBINING TRANSMITTER FOR INCREMENTAL REDUNDANCY HARQ WITH MIMO

Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.

TRIGGER FRAME FORMAT FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION

One or more trigger frames are generated at a first communication device to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. Each of the one or more trigger frames (i) includes an indication of a trigger type and (ii) is formatted according to the indicated trigger type. The first communication device transmits the one or more trigger frames to the multiple second communication devices. The first device then receives the triggered uplink OFDMA transmission that includes respective transmissions from the multiple second communication devices. 1. A method for communicating in a wireless communication network , the method comprising:generating, at a first communication device, one or more trigger frames to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices, wherein each of the one or more trigger frames (i) includes an indication of a trigger type and (ii) is formatted according to the indicated trigger type;transmitting, with the first communication device, the one or more trigger frames to the multiple second communication devices; andreceiving, at the first communication device, the triggered uplink OFDMA transmission, wherein the triggered uplink OFDMA transmission includes respective transmissions from the multiple second communication devices.2. The method of claim 1 , wherein:generating the one or more trigger frames comprises generating a broadcast trigger frame that includes information to indicate respective transmission parameters for the multiple second communication devices, andtransmitting the one or more trigger frames comprises transmitting the broadcast trigger frame to the multiple second communication devices.3. The method of claim 1 , wherein:generating the one or more trigger frames comprises generating multiple unicast trigger frames, wherein each unicast trigger frame includes information to indicate transmission ...

TRIGGERED UPLINK TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS

In a method for communicating in a wireless communication network a trigger frame is generated to trigger simultaneous uplink transmissions by multiple communication devices. The trigger frame includes a padding portion having a length determined based on respective time duration requirements of the multiple communication devices, the respective time duration requirements for preparing uplink transmission by the corresponding second communication devices. The trigger frame is transmitted to the multiple communication devices. The simultaneous uplink transmissions, triggered by the trigger frame, are received from the multiple communication devices. 1. A method for communicating in a wireless communication network , the method comprising:generating, at a first communication device, a trigger frame to trigger simultaneous uplink transmissions by multiple second communication devices, wherein the trigger frame includes a padding portion, and wherein a length of the padding portion is determined based on respective time duration requirements of the multiple second communication devices, the respective time duration requirements for preparing uplink transmission by the corresponding second communication devices;transmitting, with the first communication device, the trigger frame to the multiple second communication devices; andreceiving, at the first communication device, the simultaneous uplink transmissions, triggered by the trigger frame, from the multiple second communication devices.2. The method of claim 1 , wherein generating the trigger frame includes appending the padding portion after one or more information fields of a frame body portion of the trigger frame and before a frame check sequence (FCS) field of the trigger frame.3. The method of claim 1 , further comprising claim 1 ,receiving, at the first communication device from the multiple second communication devices, the respective time duration requirements of the multiple second communication devices, ...

Signal Field Encoding in a High Efficiency Wireless Local Area Network (WLAN) Data Unit

In a method of generating a field of a physical layer (PHY) preamble of a data unit, information bits to be included in the field are generated. Respective sets of tail bits are appended after respective sets of information bits corresponding to respective ones of a plurality of groups of subfields of the field, each group including one or more of the subfields of the field, to generate an encoder input bit stream. One or more padding bits are added to the encoder input stream to generate a padded encoder input bit stream, the one or more padding bits to ensure an integer number of puncturing blocks in an encoded output bit stream. The padded encoder input bit stream is encoded to generate the encoded output bit stream. The field is generated to include at least some bits from the encoded output bit stream. 1. A method of generating a field of a physical layer (PHY) preamble of a data unit , the method comprising:generating, at a communication device, information bits to be included in the field;appending, at the communication device, respective sets of tail bits after respective sets of information bits corresponding to respective ones of a plurality of groups of subfields of the field, each group including one or more of the subfields of the field, to generate an encoder input bit stream;adding, at the communication device, one or more padding bits to the encoder input stream to generate a padded encoder input bit stream, the one or more padding bits to ensure an integer number of puncturing blocks in an encoded output bit stream;encoding, at the communication device, the padded encoder input bit stream to generate the encoded output bit stream; andgenerating, at the communication device, the field to include at least some bits from the encoded output bit stream.2. The method of claim 1 , wherein encoding the padded encoder input bit stream to generate the encoded output bit stream comprises continually encoding the padded encoder input bit stream to generate a ...

Symbol Level Beam Sweeping Capability Reporting

Apparatuses, systems, and methods for beam indication latency reduction via symbol level beam sweeping capability reporting. A wireless device may transmit, to a base station, a report associated with symbol level beam sweeping. The wire wireless device may receive, from the base station, a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The wireless device may perform synchronization signal block (SSB) measurements according to the report and the symbol level beam sweeping configuration. 1. A user equipment device (UE) , comprising:at least one antenna;at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); andone or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications; transmit, to a base station, a report associated with symbol level beam sweeping;', 'receive, from the base station, a symbol level beam sweeping configuration, wherein the symbol level beam sweeping configuration is based, at least in part, on the report; and', 'perform synchronization signal block (SSB) measurements according to the report and the symbol level beam sweeping configuration., 'wherein the one or more processors are configured to cause the UE to2. The UE of claim 1 ,wherein a time period for SSB measurements is based, at least in part, on a number of receive beams applied to an SSB.3. The UE of claim 1 ,wherein the report includes a capability indicating whether the UE supports symbol level beam sweeping for an SSB.4. The UE of claim 1 ,wherein the report includes an indication of a number of receive beams a UE can apply to an SSB.5. The UE of claim 1 ,wherein the report is per component carrier, per band, per band combination or per UE.6. The UE of claim 1 ,wherein the symbol level beam ...

Symbol Level Beam Sweeping Configuration

Apparatuses, systems, and methods for beam indication latency reduction via a symbol level beam sweeping configuration. A base station may receive, from a user equipment device (UE), a report associated with symbol level beam sweeping. The base station may determine a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The base station may transmit, to the UE, the symbol level beam sweeping configuration. 1. A base station , comprising:at least one antenna;at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); andone or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications; receive, from a user equipment device (UE), a report associated with symbol level beam sweeping;', 'determine a symbol level beam sweeping configuration, based, at least in part, on the report; and', 'transmit, to the UE, the symbol level beam sweeping configuration., 'wherein the one or more processors are configured to cause the base station to2. The base station of claim 1 ,wherein a time period for SSB measurements is based, at least in part, on a number of receive beams applied to an SSB.3. The base station of claim 1 ,wherein the report includes a capability indicating whether the UE supports symbol level beam sweeping for an SSB.4. The base station of claim 1 ,wherein the report includes an indication of a number of receive beams a UE can apply to an SSB.5. The base station of claim 1 ,wherein the report is per component carrier, per band, per band combination or per UE.6. The base station of claim 1 ,wherein the symbol level beam sweeping configuration enables symbol level beam sweeping.7. The base station of claim 1 ,wherein the symbol level beam sweeping configuration is received via higher layer ...

SHORT TRAINING FIELD FOR WIFI

A communication device generates a preamble of an uplink (UL) orthogonal frequency division multiplex (OFDM) data unit, conforming to a first communication protocol, for transmission via a communication channel. Generating the preamble of the UL OFDM data unit includes: generating a first training field that conforms to a second communication protocol; generating a second training field to be included in the preamble after the first training field, wherein the second training field is generated based on a sequence that includes non-zero values spaced apart by zero values such that the non-zero values occur at an interval of eight elements in the sequence; modulating the first training field using a first tone spacing Lbetween adjacent OFDM tones; the first training field having a periodicity L; and modulating the second training field using a second tone spacing equal to L/4 between adjacent OFDM tones, the second training field has a periodicity 2*L. 1. A method , comprising: generating a first training field, wherein the first training field conforms to a second communication protocol,', 'generating a second training field to be included in the preamble after the first training field, wherein the second training field: i) conforms to the first communication protocol, and ii) is generated based on a sequence that includes non-zero values spaced apart by zero values such that the non-zero values occur at an interval of eight elements in the sequence,', {'sub': TS', 'P, 'modulating the first training field using a first tone spacing Lbetween adjacent OFDM tones, wherein the first training field has a periodicity L, and'}, {'sub': TS', 'P, 'modulating the second training field using a second tone spacing equal to L/4 between adjacent OFDM tones, wherein the second training field has a periodicity 2*L.'}], 'generating, at a communication device, a preamble of an uplink (UL) orthogonal frequency division multiplex (OFDM) data unit for transmission via a communication ...

RADIO RESOURCE ASSIGNMENT IN CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEMS

A method in a wireless communication device including receiving () a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines () at least two of the control channel elements, and decodes () the combined control channel elements. 1. A method in a wireless communication device , the method comprising:receiving a composite control channel including at least two radio resource assignment control channel elements;determining a number of types of control channel elements constituting the composite control channel.2. The method of claim 1 ,the composite control channel including type indicator information for each type of control channel element constituting the composite control channel,determining the number of types of control channel elements based on the type indicator information.3. The method of claim 2 , the type indicator information includes a sequence of bits appended to a last control channel element of each type.4. The method of claim 1 , determining a number of control channel elements constituting at least one type of control channel elements of the composite control channel.5. The method of claim 1 , determining a number of control channel elements constituting at least two types of control channel elements of the composite control channel.6. The method of claim 1 , determining a number of control channel elements constituting at least one type of control channel element of the composite control channel.7. The method of claim 1 , determining the number of types of control channel elements constituting the composite control channel includes determining a number of uplink control channel elements and determining a number of downlink control channel elements.8. The method of claim 1 , determining the number of types of control channel elements ...

RADIO RESOURCE ASSIGNMENT IN CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEMS

A method in a wireless communication device including receiving () a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines () at least two of the control channel elements, and decodes () the combined control channel elements. 1. A method in a wireless infrastructure entity , the method comprising:determining a channel condition of a wireless communication entity connected to the wireless infrastructure entity;transmitting a composite control channel from the wireless infrastructure entity,the composite control channel including a single control channel element based on the channel condition of the wireless communication entity.2. The method of further comprising providing radio resource assignment information on the control channel elements of the composite control channel before transmitting the composite control channel.3. A method in a wireless infrastructure entity claim 1 , the method comprising:determining the channel condition of a wireless communication entity connected to the wireless infrastructure entity;transmitting a composite control channel from the wireless infrastructure entity,the composite control channel including at least two control channel elements based on the channel condition of the wireless communication entity.4. The method of further comprising providing radio resource assignment information on the control channel elements of the composite control channel before transmitting the composite control channel.5. A method in a wireless communication device claim 3 , the method being characterized by:receiving, at the wireless communication device,a first composite control channel in a first receive bandwidth on a first center frequency and receiving a second composite control channel in a second receive bandwidth on a second center ...

IN-DEVICE COEXISTENCE OF WIRELESS COMMUNICATION TECHNOLOGIES

In a method of operating a communication device that includes at least (i) a first network interface configured to operate according to a first communication protocol and (ii) a second network interface configured to operate according to a second communication protocol, the first communication interface is operated according to the first communication protocol. The first communication protocol defines a periodically repeating set of time intervals. One or more time intervals, from the set of time intervals, that meet a selection criteria are determined. The selection criteria is based on level of interference experienced by the first network interface. During the determined one or more time intervals, operation of the first network interface according to the first communication protocol is suspended, and operation of the second network interface according to the second communication protocol is enabled. 1. A method of operating a communication device that includes at least (i) a first network interface configured to operate according to a first communication protocol and (ii) a second network interface configured to operate according to a second communication protocol , the method comprising:operating the first communication interface according to the first communication protocol, wherein the first communication protocol defines a periodically repeating set of time intervals;determining one or more time intervals, from the set of time intervals, that meet a selection criteria, wherein the selection criteria is based on level of interference experienced by the first network interface; and suspending operation of the first network interface according to the first communication protocol, and', 'enabling operation of the second network interface according to the second communication protocol., 'during the determined one or more time intervals,'}2. The method of claim 1 , wherein the first communication protocol is a 3Partnership Project Long Term Evolution (3GPP LTE) ...

Electronic Devices Having Sensor-Augmented Wireless Link Management

An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include a phased antenna array. Sensors and other circuitry in the electronic device may generate sensor data such as accelerometer data, gyroscope data, magnetometer data, location data, and spatial ranging data. The wireless circuitry may establish and maintain one or more wireless links with external devices based on the sensor data as the device moves over time. For example, the wireless circuitry may perform physical layer beam adjustments, inter-radio access technology handovers, intra-radio access technology handovers, and/or dual connectivity adjustments based on the sensor data. This may allow the device to maintain one or more wireless links without having to sweep the signal beam of the phased antenna array over its entire field of view each time the device has moved. 1. An electronic device comprising:antenna circuitry;a sensor configured to generate sensor data, the sensor having a millimeter wave ranging engine configured to generate range information associated with a distance between the electronic device and an external object, the sensor data comprising the range information; andcontrol circuitry configured to adjust the antenna circuitry using the range information.2. The electronic device of claim 1 , wherein the millimeter wave ranging engine is configured to generate the range information by transmitting millimeter wave signals using the antenna circuitry that produce corresponding reflected millimeter wave signals upon the transmitted millimeter wave signals reflecting off the external object and receiving the reflected millimeter wave signals.3. The electronic device of claim 1 , wherein the antenna circuitry comprises a phase antenna array.4. The electronic device of claim 3 , wherein the antenna circuitry is configured to convey wireless data using radio-frequency signals at a frequency greater than 10 GHz.5. The electronic device ...

Supplemental Use of Millimeter Wave Spectrum

An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may communicate using a 5G New Radio (NR) protocol. The wireless circuitry may have multiple bandwidth part configurations. The control circuitry may place the wireless circuitry in a first bandwidth part configuration where a first bandwidth part of a first component carrier is active and a second bandwidth part of a second component carrier is inactive. The control circuitry may switch the wireless circuitry from the first bandwidth part configuration to a second bandwidth part configuration in which the first bandwidth part is inactive and the second bandwidth part is active. The first and second component carriers may be intra-band contiguous, intra-band non-contiguous, or inter-band. The control circuitry may switch the wireless circuitry into other configurations for covering other bandwidth parts of any desired component carriers in any desired bands.

Downlink Signaling in a High Efficiency Wireless Local Area Network (WLAN)

A method for generating a physical layer (PHY) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit; generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; generating the PHY data unit to include at least the preamble. 1. A method for generating a physical layer (PHY) data unit for transmission via a communication channel , the method comprising:generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit;generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit;generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; andgenerating the PHY data unit to include at least the preamble.2. The method of claim 1 , wherein the second signal field content spans two sub-bands of the PHY data unit.3. The method of claim 1 , wherein generating the preamble to include the first signal ...

SUB-CHANNEL ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX WLAN

A first communication device allocates respective frequency sub-channels for subsequent orthogonal frequency division multiple access (OFDMA) communications with two or more second communication devices, including allocating a first frequency sub-channel, a second frequency sub-channel, and a third frequency sub-channel between the first frequency sub-channel and the second frequency sub-channel. The first communication device generates and transmits a first downlink OFDMA data unit configured to prompt the two or more second communication devices to transmit as part of a multi-user transmission that spans the first frequency sub-channel, the second frequency sub-channel, and the third frequency sub-channel. The first communication device receives an uplink OFDMA transmission and determines that the uplink OFDMA transmission did not include a transmission within the third frequency sub-channel. In response, the first communication device does not transmit within the third frequency sub-channel when transmitting one or more subsequent downlink OFDMA data units via the communication channel. 1. A method , comprising:allocating, at a first communication device, respective frequency sub-channels for subsequent orthogonal frequency division multiple access (OFDMA) communications with two or more second communication devices, including allocating (i) a first frequency sub-channel, (ii) a second frequency sub-channel, and (iii) a third frequency sub-channel, wherein the third frequency sub-channel is between, in frequency, the first frequency sub-channel and the second frequency sub-channel;generating, at the first communication device, a first downlink OFDMA data unit configured to prompt the two or more second communication devices to transmit as part of a multi-user transmission that spans the first frequency sub-channel, the second frequency sub-channel, and the third frequency sub-channel;transmitting, by the first communication device, the first downlink OFDMA data ...

Termination of wireless communication uplink periods to facilitate reception of other wireless communications

The present disclosure describes systems and techniques relating to wireless communications by devices that employ more than one wireless communication technology. According to an aspect of the described systems and techniques, a device includes: a first radio configured to communicate wirelessly with a first station in accordance with a first wireless communication technology, a second radio configured to communicate wirelessly with a second station in accordance with a second wireless communication technology, a controller configured to (i) terminate scheduled portions of time for sending communications from the first radio to the first station in favor of receiving communications from the second station to the second radio and (ii) restrict which of all available scheduled portions of time for sending communications from the first radio to the first station are provided for termination based on information about types of data transmitted in respective ones of the available scheduled portions of time.

SYSTEMS AND METHODS FOR IMPLEMENTING AN OFDMA LTF DESIGN FOR WIRELESS NETWORK COMMUNICATION

Systems, methods, and apparatuses are disclosed herein for aligning HE-LTFs corresponding to a plurality of users by determining a respective number of spatial streams corresponding to each user, determining a highest respective number of spatial streams of the spatial streams, and setting an alignment number of HE-LTF symbols to be equal to or larger than the highest respective number of spatial streams. For each respective user, a respective matrix of HE-LTF symbols corresponding to the respective number of spatial streams of the respective user is selected, and it is determined whether the respective matrix of HE-LTF symbols has fewer symbols than the alignment number. In response to determining that the respective matrix of HE-LTF symbols has fewer symbols than the alignment number, padding symbols may be added to the respective matrix to yield a number of HE-LTF symbols in the respective matrix that corresponds to the alignment number. 120-. (canceled)21. A method for aligning high efficiency long training fields (“HE-LTF”) for data corresponding to a plurality of users , the method comprising:obtaining, at a wireless transmitter, data for transmission to a plurality of users via a plurality of wireless channels;determining a respective number of spatial streams for each user of the plurality of users for transmission via a data frame;determining a size of a template matrix, wherein a first number of columns of the template matrix corresponds to at least a maximum number of spatial streams among the plurality of users and a first number of rows of the template matrix corresponds to at least the maximum number of spatial streams among the plurality of users;accessing, from memory, the template matrix of the determined size;generating a respective spatial mapping matrix for each user of the plurality of users based on the template matrix, wherein each respective spatial mapping matrix comprises the first number of columns in the template matrix, and wherein each ...

MULTIPLE BASIC SERVICE SET SUPPORT

An access point (AP) device determines a set of basic service set identifiers (BSSIDs). Each BSSID includes a same group of most significant bits (MSBs) and a different group of n least significant bits (LSBs). The AP device assigns respective BSSIDs from the set of BSSIDs to multiple virtual APs. and designates one of the assigned BSSIDs as a reference BSSID that corresponds to a transmitter address (TA) for frames intended for client stations associated with more than one virtual AP. The AP device generates and transmits a management frame that includes i) a header with a TA field set to one of the assigned BSSIDs, and ii) a frame body with a plurality of fields that includes a) a first field set to n, and b) a second field set to the n LSBs of the reference BSSID. The TA field, the first field, and the second field in the management frame indicate the reference BSSID to a client station that receives the management frame. 126-. (canceled)27. A method , comprising:determining, at an access point (AP) device, a set of basic service set identifiers (BSSIDs), wherein each BSSID in the set includes a same group of most significant bits (MSBs);assigning, at the AP device, respective BSSIDs from the set of BSSIDs to multiple virtual APs implemented by the AP device;designating, at the AP device, one of the assigned BSSIDs as a reference BSSID, wherein the reference BS SID corresponds to a transmitter address (TA) for frames intended for client stations associated with more than one virtual AP implemented by the AP device;generating, at the AP device, a management frame that includes i) a header with a TA field set to one of the assigned BSSIDs, and ii) a frame body with a plurality of fields that includes a) a first field set to n, and b) a second field set to then LSBs of the reference BS SID; andtransmitting, by the AP device, the management frame, wherein the TA field, the first field, and the second field, indicate the reference BS SID to a client station that ...

OPERATION WITH BANDWIDTH-LIMITED DEVICES IN A WIRELESS NETWORK

A first communication device allocates respective portions of a communication channel, that includes at least one primary component channel and one or more non-primary component channels, to a plurality of second communication devices, including a bandwidth-limited second communication device configured to operate with a maximum bandwidth that is less than a full bandwidth of the communication channel. The bandwidth-limited second communication device is operating in a particular component channel, and allocation of a frequency portion to the bandwidth-limited second communication device is restricted to the particular component channel. The first communication device transmits a data unit that includes one or both of: respective data for the second communication devices in the respective frequency portions allocated to the respective second communication devices, and one or more trigger frames to prompt transmission of respective data by the second communication devices in the respective frequency portions allocated to the respective second communication devices. 1. A method for communicating in a wireless local area network (WLAN) that utilizes a communication channel having a plurality of component channels , the plurality of component channels including i) at least one primary component channel in which an access point transmits management frames including beacon frames , and ii) one or more non-primary component channels , the method comprising:receiving, at a bandwidth-limited client station that is configured to operate with a maximum bandwidth that is less than a full bandwidth of the communication channel, target wake time (TWT) information from the access point, the TWT information regarding a TWT period with the access point and including an indication of a particular non-primary component channel among the one or more non-primary component channels in which the bandwidth-limited client station is expected to operate during the TWT period;switching ...

Systems and methods for channel quality indicator (cqi) selection for non-deterministic receivers

Systems and methods are provided for determining a channel quality indicator (CQI) for receivers that exhibit non-deterministic behavior during the CQI selection process. A codeword is received over a transmission system at a receiver, and a performance measure that is dependent on the CQI is determined for the codeword. The receiver determines an objective function that is based on the CQI and the performance measure, and selects a value for the CQI by performing an optimization technique on the objective function. The optimization technique is performed on the objective function over a range of candidate CQI values, and the selected value for the CQI is the candidate CQI value that optimizes the objective function.

BROADCAST AND MULTICAST IN A WIRELESS COMMUNICATION SYSTEM IN A WIRELESS COMMUNICATION NETWORK

The present disclosure includes systems and techniques relating to broadcast and multicast in a wireless communication system. In some implementations, an announcement frame indicating a broadcast or multicast service period to multiple second wireless devices is transmitted by a first wireless device. The announcement frame indicates (i) an end time of the broadcast or multicast service period and (ii) an order of a sequence of frames to be directed to the multiple second wireless devices. Each of the sequence of frames is transmitted at the first wireless device using a directional antenna pattern to a respective one of the multiple second wireless devices, according to the order of the sequence of frames indicated in the announcement frame. An acknowledgement frame in response to the each of the sequence of frames is received at the first wireless device from the respective one of the multiple second wireless devices. 1. A method comprising:transmitting, at a first wireless communication device, an announcement frame indicating a broadcast or multicast service period to a plurality of second wireless communication devices, wherein the announcement frame indicates (i) an end time of the broadcast or multicast service period and (ii) an order of a sequence of frames to be directed to the plurality of second wireless communication devices, each of the sequence of frames to be directed to a respective one of the plurality of second wireless communication devices;transmitting, at the first wireless communication device using a directional antenna pattern, the each of the sequence of frames to the respective one of the plurality of second wireless communication devices, according to the order of the sequence of frames indicated in the announcement frame; andreceiving, at the first wireless communication device from the respective one of the plurality of second wireless communication devices, an acknowledgement frame in response to the each of the sequence of frames.2. ...

SYSTEMS, APPARATUSES AND METHODS FOR A SIGNAL EXTENSION PADDING SCHEME

Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol. 120.-. (canceled)21. A method for forward error correction (FEC) padding in an existence of short orthogonal frequency-division multiplexing (OFDM) symbols , the method comprising:obtaining, at a transceiver, a plurality of data symbols for transmission;determining a number of information bits that are available for inclusion in a last symbol of the plurality of data symbols;selecting a compatible number of scheduled data subcarriers, the compatible number being a fraction of a number of scheduled data subcarriers used for transmission in a single symbol period under a same bandwidth;calculating an integer number of information bits for the last symbol based on the compatible number of scheduled data subcarriers;adding a number of padding bits to the number of information bits that are available for transmission, wherein the number of padding bits and the number of information bits sum to the integer number of information bits; andencoding, for data transmission, the plurality of data symbols, the plurality of data symbols including the last data symbol having the integer number of information bits.22. The method for FEC padding in the existence of short OFDM symbols of claim 21 , further comprising:applying a padding for the last symbol of the plurality of data symbols, wherein ...