Method and system for transferring information between network management entities of a wireless communication system

A method and wireless communication system may be used for transferring management information. An access point (AP) may transmit a management information base (MIB) information request including a category field and an action details field to a wireless transmit/receive (WTRU). In response to receiving the information request, the WTRU may determine whether or not to provide management information to the AP. When the WTRU provides management information to the AP, the WTRU may compile management information stored in a MIB located in the WTRU and transmit a MIB information report to the AP. The MIB may list a plurality of tables containing information associated with radio resource management (RRM) and at least one table containing physical layer measurements. The AP may include a MIB for storing MIB information of the WTRU. The AP may transmit the stored MIB information of the WTRU in response to a request.

METHOD AND APPARATUS FOR NETWORK MANAGEMENT USING PERODIC MEASUREMENTS OF INDICATORS

A beacon signal may be provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements. 1. An apparatus comprising:a receiver to receive from a wireless communication station a beacon request comprising a measurement request field, the measurement request field comprising a measurement duration field and a mode field, the measurement duration field to indicate a measurement duration of a requested measurement; anda transmitter to transmit a beacon report to the wireless communication station based on the measurement request field,wherein, when the mode field comprises an active mode value or a passive mode value, the beacon report comprises a report based on detection, according to the measurement duration, of one or more of probe responses or beacons, and, when the mode field comprises a beacon table mode value, the beacon report comprises a current content of beacon information without additional measurement.2. The apparatus of claim 1 , wherein claim 1 , when the mode field comprises the active mode value claim 1 , the transmitter is to broadcast a probe request.3. The apparatus of claim 1 , wherein the measurement request field ...

Supporting emergency calls on a wireless local area network

Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame.

Method and apparatus for determining and managing congestion in a wireless communications system

A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers 1 and 2 as applied to, for example, 802.11k in the context of OFDM and CDMA 2000 systems, but may be applicable to other scenarios as well. A method for determining and transmitting congestion information may be provided for a Wireless Local Area Network (WLAN) system. The method and apparatus may be used for managing congestion when congestion is detected. The method and apparatus may be used in wireless systems that use a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods may be implemented in wireless transmit/receive units (WTRU)s and access points (AP)s of various forms.

SERVICE-BASED APPROACH TO CHANNEL SELECTION AND NETWORK CONFIGURATION FOR TELEVISION WHITE SPACE NETWORKS

A method for managing channel selection in a dynamic spectrum management network includes receiving a spectrum allocation request; based on the source of the spectrum allocation request, checking for available channels; based on the source of the spectrum allocation request, collecting sensing and usage data for the available channels; providing the channel usage data to an entity that transmitted the spectrum allocation request.

TELEVISION BAND (TVBD) CHANNEL QUIETING ACROSS DIVERSE RADIO ACCESS TECHNOLOGIES

Disclosed herein are methods and apparatus for the communication of wireless data using diverse radio access technologies (RATs) in Television Band (TVBD) frequencies. An architecture for communicating wireless data in TVBD frequencies may include one or more network nodes that perform functions related to the coordination of channel quieting across multiple diverse RATs. Channel quieting may be performed across multiple diverse RATs by using temporary channel reassignments, by aggregating wireless transmit/receive units (WTRUs) that use a particular RAT onto the same channel, and/or via other techniques. 1. A method for use in a network node , the method comprising:receiving data indicating that a wireless transmit/receive unit (WTRU) is operating on a first channel using a radio access technology (RAT);determining, based on the RAT being used by the WTRU, that the WTRU should move to a second channel prior to a quiet period on the first channel; andsending a command to the WTRU, the command indicating that the WTRU should move to the second channel.2. The method of claim 1 , wherein the determining that the WTRU should move to the second channel is further based on data indicating that a second WTRU using the RAT is operating on the second channel.3. The method of claim 2 , further comprising:receiving data indicating that a third WTRU is operating on the first channel using a second RAT;receiving data indicating that a fourth WTRU is operating on a third channel using the second RAT; anddetermining, based on the third WTRU and the fourth WTRU using the second RAT, that the third WTRU should move to the third channel prior to the quiet period; andsending a second command to the third WTRU, the second command indicating that the WTRU should move to the third channel.4. The method of claim 1 , wherein the first channel and the second channel are Television Band (TVBD) channels.5. The method of claim 1 , wherein the command is an Electronics Engineers (IEEE) Media ...

Coordination of silent periods for dynamic spectrum manager (DSM)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing,receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

USER EQUIPMENT FOR PHYSICAL LAYER AUTOMATIC REPEAT REQUEST

A subscriber unit for automatic repeat request mechanisms and related methods are disclosed. The subscriber unit may comprise transmitting a single carrier frequency domain equalization (SC-FDE) signals using a plurality of hybrid automatic repeat request (ARQ) mechanisms. The plurality of hybrid ARQ mechanisms may use a stop and wait architecture. Further, each of the plurality of hybrid ARQ mechanisms may transmit in a different time interval and each time interval includes at least one time slot. The subscriber unit may receive downlink data signals using hybrid ARQ and may receive acknowledgments (ACKs)/negative acknowledgments, wherein the ACK/NAKs may be received in a time period between the downlink transmissions.

Method and apparatus of communicating a beacon report

A beacon signal may be provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements.

USER EQUIPMENT FOR PHYSICAL LAYER AUTOMATIC REPEAT REQUEST

A user equipment for physical layer automatic repeat request is disclosed. The user equipment comprises a higher layer automatic repeat request (ARQ) mechanism, a physical layer transmitter, a physical layer receiver, an acknowledgment (ACK) transmitter and an adaptive modulation and control unit (AMC). A higher layer ARQ mechanism generates data for transmission. A physical layer transmitter receives the data for transmission from the higher layer ARQ mechanism, to format the received data into packets for transmission. A physical layer receiver receives and demodulates received packets and retransmission statistics. An ACK transmitter transmits a corresponding acknowledgment for a given packet at the physical layer receiver. An AMC unit adjusts a particular encoding/data modulation of each packet using collected retransmission statistics. 1. A user equipment comprising:circuitry configure to use a first automatic repeat request (ARQ) to provide data blocks for transmission by a second ARQ; wherein the first ARQ stores the data blocks to repeatedly provide the stored data blocks for transmission by the second ARQ device on a condition that the data blocks are not successfully transmitted to a base station; andwherein the circuitry is further configured to transmit the provided data blocks by the second ARQ using an N-channel stop and wait protocol; wherein each channel of the N-channels is transmitted in a different time slot; wherein each second ARQ transmission comprises turbo coded data of at least one of the data blocks and an appended error check sequence (ECS); wherein each second ARQ transmission is a single carrier-frequency domain equalization (SC-FDE) transmission; wherein the second ARQ is configured to retransmit using adaptive modulation and coding.2. The user equipment of wherein the second ARQ limits retransmission to a predetermined number.3. The user equipment of wherein the adaptive modulation and coding uses QPSK and QAM.4. The user equipment of ...

Received signal to noise indicator

A method and device may be used to produce a received interference value in wireless communications. The device may include one or more components to measure a received power of a channel and measure an average noise plus interference power of the channel. The device may include a processor configured to calculate a received signal to noise indicator (RSNI) value. The RSNI may be based on the measured received power and the measured average noise plus interference power.

METHOD AND APPARATUS FOR NETWORK MANAGEMENT USING PERIODIC MEASUREMENTS OF INDICATORS

A beacon signal may be provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements. 1. A method for use in an access point (AP) , the method comprising:transmitting a request to provide a beacon report; andreceiving the beacon report in response to satisfaction of a transmission condition.2. The method of claim 1 , wherein the request comprises a reporting condition element representing a transmission condition for transmitting a beacon report claim 1 , and wherein the reporting condition element is an 8 bit integer.3. The method of claim 2 , wherein the reporting condition element has a value of 0 claim 2 , and wherein the method further comprises:receiving the beacon report based on a periodically performed measurement.4. The method of wherein the reporting condition element has a value of 1 claim 2 , and wherein the method further comprises:receiving the beacon report in response to a measured received channel power indicator (RCPI) value that is above a threshold.5. The method of wherein the reporting condition element has a value of 2 claim 2 , and wherein the method further comprises:receiving the beacon report in response to a ...

COORDINATION OF SILENT PERIODS FOR DYNAMIC SPECTRUM MANAGER (DSM)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing, receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results. 1. A method for use in a Dynamic Spectrum Manager (DSM) for coordinating periodic silent periods in a network , the method comprising:monitoring bandwidth usage during a predetermined time period;configuring a length and a frequency of a periodic silent period; andscheduling the periodic silent period at the configured frequency on a condition that an asynchronous silent period has not occurred;wherein the periodic silent period maintains a maximum quality of service (QoS) for a cognitive radio (CR) node in the network.2. The method of wherein the DSM is located in an access point (AP).3. The method of wherein the DSM is located in a home enhanced Node-B (H(e)NB).4. A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network claim 1 , the method comprising:monitoring a time-to-trigger (TTT) to determine if a channel quality is below a predetermined threshold;on a condition that the TTT is above a predetermined threshold, detecting a primary user in the network;transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing;receiving a Measurement Report Control Message from the one ...

METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS STATIONS

A method for use in a station of measuring radio frequency (RF) interference is presented. An average noise power indicator of the STA (STA_ANPI) is determined. A rate of change of the STA_ANPI is monitored to determine an RF interference metric. The RF interference metric is transmitted to another network entity, whereby the another network entity is enabled to perform load balancing based on the RF interference metric. 1. A method for use in a station (STA) of measuring radio frequency (RF) interference , the method comprising:determining an average noise power indicator of the STA (STA_ANPI);monitoring a rate of change of the STA_ANPI to determine an RF interference metric; andtransmitting the RF interference metric to another network entity, whereby the another network entity is enabled to perform load balancing based on the RF interference metric.2. The method according to claim 1 , wherein the monitoring includes:storing STA_ANPI values; anddetermining the RF interference metric based on a difference between a stored STA_ANPI value and a most recent STA_ANPI value.3. The method according to claim 2 , wherein the difference is determined during a selected time window.4. The method according to claim 2 , wherein RF interference onset is determined on a condition that the difference is greater than a threshold value.5. The method according to claim 2 , wherein RF interference termination is determined on a condition that the difference is less than a threshold value. This application is a divisional of U.S. patent application Ser. No. 11/972,871, filed Jan. 11, 2008, which claims the benefit of U.S. Provisional Patent Application No. 60/884,775, filed on Jan. 12, 2007, which are incorporated by reference as if fully set forth herein.The carrier sense multiple access with collision avoidance (CSMA/CA) protocol for IEEE 802.xx communications requires each wireless station (STA) to determine that a channel is idle prior to transmitting. The physical (PHY) and medium ...

Television band (tvbd) channel quieting across diverse radio access technologies

A method and system is disclosed for communicating data using diverse radio access technologies (RATs) in a wireless communication system. A wireless transmit/receive unit (WTRU) may transmit data over a first channel using a first radio access technology (RAT) and a network node may receive information that indicates that the WTRU is operating on the first channel using the first RAT. The network node may determine, based on the RAT being used by the WTRU, that the WTRU should move to a second channel prior to a quiet period on the first channel. The network node may transmit a first command to the WTRU that indicates that the WTRU should move to the second channel. The WTRU may move from the first channel to the second channel in response to receiving the first command and the WTRU may transmit data over the second channel using the first RAT.

SYSTEM AND METHOD FOR RECEIVED CHANNEL POWER INDICATOR (RCPI) MEASUREMENT

A received channel power indicator (RCPI) value is used as a measure of the received RF power in the selected channel, measured at the antenna connector. This parameter is a measure by the PHY sublayer of the received RF power in the channel measured over the PLCP preamble and over the entire received frame. RCPI is a monotonically increasing, logarithmic function of the received power level defined in dBm. 1. A method for receiving a received channel power indicator (RCPI) at an access point (AP) , the method comprising:transmitting a wireless signal;receiving an n-bit RCPI parameter that is based on a measured radio frequency power of the wireless signal at a wireless transmit receive unit (WTRU) having a monotonically increasing logarithmic function, wherein n is a positive integer.2. The method of wherein the measured radio frequency power of the wireless signal is defined in dBm.3. The method of wherein the n-bit RCPI parameter is an 8 bit RCPI parameter.4. The method of wherein the n-bit RCPI parameter is determined as a scalar value in a range of 0 through 220.5. The method of wherein the measured radio frequency power of the wireless signal is rounded to a nearest 0.5 dB.6. The method of wherein the range used for the scalar value includes a 0 scalar value that corresponds to a power less than −110 dBm and a 220 scalar value that corresponds to a power greater than −0 dBm.7. The method of wherein the measured radio frequency power of the wireless signal is measured to an accuracy of +/−5 dB.8. A wireless access point (AP) comprising:a transmitter configured to transmit a wireless signal;a receiver configured to receive an n-bit received channel power indicator (RCPI) parameter that is based on a measured radio frequency power of the wireless signal at a wireless transmit receive unit (WTRU) having a monotonically increasing logarithmic function, wherein n is a positive integer.9. The AP of wherein the measured radio frequency power of the wireless signal is ...

RECEIVED SIGNAL TO NOISE INDICATOR

A method and device may be used to produce a received interference value in wireless communications. The device may include one or more components to measure a received power of a channel and measure an average noise plus interference power of the channel. The device may include a processor configured to calculate a received signal to noise indicator (RSNI) value. The RSNI may be based on the measured received power and the measured average noise plus interference power. 1. A method for use in a receiver for reporting a received signal to noise ratio , the method comprising:measuring a received power of a channel;measuring an average noise plus interference power of the channel;calculating a received signal to noise indicator (RSNI) value based on the measured received power and the measured average noise plus interference power; andreporting the RSNI value to an access point.2. The method of wherein the RSNI value is included in a field of a beacon report.3. The method of wherein the RSNI value is included in a field of a frame report.4. The method of wherein the RSNI value is included in a field of a reassociation response.5. The method of wherein calculating the RSNI value further comprises:subtracting the measured average noise plus interference power from the measured received power to determine a difference; anddividing the difference by the measured average noise plus interference to determine the RSNI value.6. The method of wherein the received power and the average noise plus interference power are measured at an antenna connector.7. The method of further comprising:scaling the RSNI value for a desired range.8. The method of wherein the measured received power is a measurement of a radio frequency (RF) signal that includes noise and interference.9. The method of wherein the RSNI value is in a range of −10 db to +118 db.10. The method of further comprising:transmitting the RSNI value in a management frame or a control frame.11. A receiver comprising:a first ...

METHOD AND APPARATUS FOR NETWORK MANAGEMENT USING PERODIC MEASUREMENTS OF INDICATORS

A beacon signal may be provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements. 1. A first station configured to request a beacon report , the first station comprising:a transmitter configured to transmit to a second station a request to provide the beacon report, the request comprising a reporting condition element representing a transmission condition for transmitting the beacon report, and a Threshold/Offset field; anda receiver configured to receive the beacon report from the second station.2. The first station of claim 1 , wherein the receiver is configured to receive the beacon report based on the transmission condition claim 1 , the transmission condition relating to a measurement claim 1 , which is above or less than a threshold value.3. The first station of claim 1 , wherein the reporting condition element has a value of 0 to indicate the beacon report is to be transmitted in response to a measurement.4. The first station of claim 1 , wherein the reporting condition element has a value of 1 to indicate the beacon report is to be transmitted in response to a measured received channel power indicator (RCPI) level that is ...

Coordination of silent periods for dynamic spectrum manager (dsm)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing, receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

Supporting emergency calls on a wireless local area network

Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame.

Television band (tvbd) channel quieting across diverse radio access technologies

A method and apparatus for use in a spectrum manager are disclosed herein. A method includes receiving device parameters from a wireless transmit/receive unit (WTRU) in a managed area, transmitting the device parameters to a central television band (TVBD) data base server, wherein the spectrum manager also stores the device parameters in a local database, receiving enabling information from the central TVBD data base server, and transmitting the enabling information to the WTRU in the managed area.

METHOD AND APPARATUS FOR DETERMINING AND MANAGING CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM

A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers 1 and 2 as applied to, for example, 802.11k in the context of OFDM and CDMA 2000 systems, but may be applicable to other scenarios as well. A method for determining and transmitting congestion information may be provided for a Wireless Local Area Network (WLAN) system. The method and apparatus may be used for managing congestion when congestion is detected. The method and apparatus may be used in wireless systems that use a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods may be implemented in wireless transmit/receive units (WTRU)s and access points (AP)s of various forms. 1. An Institute of Electrical and Electronics Engineers (IEEE) 802.11 station (STA) comprising:a receiver configured to receive, from an access point (AP), a beacon frame that includes a field that is 8 bits in length and represents an average access delay associated with the AP, wherein the average access delay is a measurement of time between when a packet is ready for transmission and an actual packet transmission start time; anda processor configured to decode the beacon frame including the field.2. The IEEE 802.11 STA of claim 1 , wherein the 8 bits represent a scaled indication of the average access delay associated with the AP.3. The IEEE 802.11 STA of claim 2 , wherein the 8 bit representation includes values from 1 to 252.4. The IEEE 802.11 STA of claim 1 , wherein the receiver is configured to receive a plurality of fields representing an average access delay from a plurality of APs respectively claim 1 , and the processor is further configured to select one AP from the plurality of APs a based on the plurality of fields.5. An Institute of Electrical and Electronics Engineers (IEEE) 802.11 access point (AP) ...

SUPPORTING EMERGENCY CALLS ON A WIRELESS LOCAL AREA NETWORK

Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame. 1. A station (STA) comprising:a receiver configured to receive a plurality of basic service set identifiers (BSSID)s, wherein at least one of the plurality of BSSIDs is an emergency BSSID associated with an emergency call security credential; anda transmitter configured to transmit an access request indicating the emergency BSSID to an access point (AP);wherein the receiver is further configured to receive, from the AP, a grant for only emergency call access based on the emergency call security credential.2. The STA of claim 1 , wherein the plurality of BSSIDs are received in a beacon frame.3. The STA of claim 1 , wherein the emergency BSSID is received in a response frame.4. The STA of claim 3 , wherein the response frame is a probe response frame claim 3 , an association response frame claim 3 , or a reassociation response frame.5. The STA of claim 1 , wherein the receiver is further configured to receive an indication regarding an emergency call capability of the AP.6. The STA of claim 5 , wherein the receiver is further configured to receive an indication regarding the emergency call capability of the AP being active.7. The STA of claim 5 , wherein the indication regarding the emergency call capability of the AP is received in an AP capability information element (IE).8. The STA of claim 7 , wherein the AP ...

Distributed reservation contention access (drca) for wireless local area network (wlan) carrier sense multiple access (csma) stations

A method and apparatus are disclosed for enabling high-efficiency communication in wireless local area network (WLAN) systems. A station (STA) may receive an Uplink Priority List (UPL) from an access point (AP). In one example embodiment, a STA may send a request for prioritized access to an AP. The STA may then receive an ordered queue of STAs granted contention free prioritized access in a predetermined time interval, which may be referred to as the Exclusive Priority Access (EPA) period. The STA may then determine whether it is identified in the ordered queue of STAs granted prioritized access. The STA may then access a medium such as a Carrier Sense Multiple Access (CSMA) wireless medium associated with the IEEE 802.11 network, in turn with other STAs in the ordered queue per the queue order during the predetermined time interval using an inter-frame spacing, thereby enabling contention free access.

Method and apparatus for determining and managing congestion in a wireless communications system

A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers 1 and 2 as applied to, for example, 802.11k in the context of OFDM and CDMA 2000 systems, but may be applicable to other scenarios as well. A method for determining and transmitting congestion information may be provided for a Wireless Local Area Network (WLAN) system. The method and apparatus may be used for managing congestion when congestion is detected. The method and apparatus may be used in wireless systems that use a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods may be implemented in wireless transmit/receive units (WTRU)s and access points (AP)s of various forms.

System and method for received channel power indicator (rcpi) measurement

A received channel power indicator (RCPI) value is used as a measure of the received RF power in the selected channel, measured at the antenna connector. This parameter is a measure by the PHY sublayer of the received RF power in the channel measured over the PLCP preamble and over the entire received frame. RCPI is a monotonically increasing, logarithmic function of the received power level defined in dBm.

Coordination of silent periods for dynamic spectrum manager (dsm)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing,receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

Method for physical layer automatic repeat request for a base station

A physical automatic repeat request method implemented by a base station (30) having a transmitter (38) and a receiver (52). A physical layer, at the transmitter (38) receives data and formats the received data into packets having a particular encoding/data modulation. The physical layer transmits the packets and retransmits packets upon failure to receive a corresponding acknowledgment (56) for a given packet. An adaptive modulation and coding controller in the transmitter collects retransmission statistics (60) and adjusts the particular encoding/data modulation using the collected statistics (62).

Implementing a physical layer automatic repeat request for a subscriber unit

A subscriber unit implementing physical layer automatic repeat request includes a transmitter (12) and a receiver (16). The transmitter has a physical layer transmitter (12a); an acknowledge receiver (12b) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller (12c) for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (16) has a physical layer receiver (16a), and an acknowledgment generator (16c) for generating an acknowledgment for each packet if that packet has an acceptable error rate.

System and Method for Receive Channel Power Indicator Measurements (RCPI)

System and method for received channel power indicator (rcpi) measurement

Base station implementing a physical layer automatic repeat request

A base station implementing physical layer automatic repeat request includes a transmitter (38) and a receiver (52). The transmitter has a physical layer transmitter for receiving data, format the received data into packets transmitting the packets and retransmitting packets in response to failure to receive a corresponding acknowledgment for a given packet; an acknowledgment receiver (56) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (52) has a physical layer receiver for demodulating the packets; a combiner/decoder (50-1-50-n) for buffering, decoding and detecting packet errors; and an acknowledgment generator for generating an acknowledgment for each packet if that packet has an acceptable error rate.

TELEVISION BAND (TVBD) SILENCING CHANNEL THROUGH DIFFERENT RADIO ACCESS TECHNOLOGIES

En la presente se describen métodos y un aparato para la comunicacion de datos inalámbricos, utilizando diversas tecnologías de acceso de radio (RAT) en frecuencias de banda de television (TVBD). Una arquitectura para comunicar datos inalámbricos en las frecuencias de TVBD puede incluir uno o más nodos de redes, que llevan a cabo funciones referidas a la coordinacion del silencio de canal entre las multiples y diversas RAT. El silencio de canal puede efectuarse entre las multiples y diversas RAT usando reasignaciones temporarias de canales, agregando unidades de transmision/recepcion inalámbricas (WTRU) que empleen una RAT en particular al mismo canal y/o mediante otras técnicas. Methods and apparatus for wireless data communication are described herein, using various radio access technologies (RAT) on television band frequencies (TVBD). An architecture for communicating wireless data on TVBD frequencies may include one or more network nodes, which perform functions related to the coordination of channel silence between multiple and various RATs. Channel silence can be performed between multiple and various RATs using temporary reassignments of channels, adding wireless transmission / reception units (WTRU) that employ a particular RAT to the same channel and / or by other techniques.

Implementing a physical layer automatic repeat request for a subscriber unit

A subscriber unit implementing physical layer automatic repeat request includes a transmitter (12) and a receiver (16). The transmitter has a physical layer transmitter (12a); an acknowledge receiver (12b) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller (12c) for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (16) has a physical layer receiver (16a), and an acknowledgment generator (16c) for generating an acknowledgment for each packet if that packet has an acceptable error rate.

Methods for supporting emergency calls on a wireless local area network

Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame.

Method and system for transferring information between network management entities of a wireless communication system

A method and wireless communication system for transferring management information. The system includes at least one access point (AP) including a first management entity and a second management entity, and at least one wireless transmit/receive unit (WTRU) including a third management entity and a fourth management entity. The AP transmits a management information base (MIB) information request action frame including a category field and an action details field to the WTRU. In response to receiving the information request action frame, the WTRU determines whether or not to provide management information to the AP. When the WTRU provides management information to the AP, the WTRU compiles management information stored in a MIB located in the WTRU and transmits a MIB information report action frame to the AP. The MIB lists a plurality of tables containing information associated with radio resource management (RRM) and at least one table containing physical layer measurements.

Implementing a physical layer automatic repeat request for a subscriber unit

Physical layer automatic repeat request (ARQ)

Method and system for transferring information between network management entities of a wireless communication system

Method and apparatus for measuring interference in wireless stations

Metrics for estimating RF interference may be derived from measurements of idle channel noise, channel utilization, medium access delay, STA throughput, BSS throughput, and frame error rate. Further, metrics may be derived from the prior list of directly measured items in combination, as ratios and by rate of change analysis. RF interference is measured indirectly by measuring total idle channel power or by measuring changes in communication channel efficiency and frame errors.

Coordination of silent periods for dynamic spectrum manager (DSM)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing, receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

A METHOD TO ADJUST THE MODULATION OF DATA IN A SUBSCRIBER UNIT

Un método de pedido de repetición automática, física, por una unidad de abonado. Una capa física en el transmisor recibe datos y formatea los datos recibidos a paquetes que tienen una codificación/modulación de datos particular. La capa física contiene n canales que transmiten los paquetes y retransmiten paquetes en respuesta a la ausencia de recepción de una confirmación correspondiente para un paquete dado. Un controlador de modulación y codificación adaptativas en el transmisor recoge las estadísticas de retransmisión y ajusta la codificación/modulaciones de datos particulares usando las estadísticas recogidas. A method of requesting automatic, physical repetition by a subscriber unit. A physical layer in the transmitter receives data and formats the data received to packets that have a particular data coding / modulation. The physical layer contains n channels that transmit the packets and retransmit packets in response to the absence of receipt of a corresponding confirmation for a given packet. An adaptive modulation and coding controller in the transmitter collects the relay statistics and adjusts the coding / modulations of particular data using the collected statistics.

Implementing a physical layer automatic repeat request for a base station

Implementing a physical layer automatic repeat request for a subscriber unit

A subscriber unit implementing physical layer automatic repeat request includes a transmitter (12) and a receiver (16). The transmitter has a physical layer transmitter (12a); an acknowledge receiver (12b) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller (12c) for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (16) has a physical layer receiver (16a), and an acknowledgment generator (16c) for generating an acknowledgment for each packet if that packet has an acceptable error rate.

Implementing a physical layer automatic repeat request for a subscriber unit

A user equipment, comprising a higher layer automatic repeat request, ARQ, mechanism configured to generate data for transmission; a physical layer transmitter configured to receive the data for transmission from the higher layer ARQ mechanism; a physical layer receiver configured to receive and demodulate received packets and retransmission statistics; an ACK transmitter configured to transmit a corresponding acknowledgment for a given packet at the physical layer receiver, and an adaptive modulation and control, AMC, unit configured to adjust the particular encoding and data modulation of each packet using collected retransmission statistics; wherein on a condition that the collected retransmission statistics.

Method and apparatus for network administration using periodic paints of indicators

Et fyrtåmsignal benyttet i datakommunikasjon, slik som IEEE 802.1 1, er tilveiebrakt med datautvidelser. Datautvidelsene muliggjør for fyrtåmsignalet å tilveiebringe tilleggsinformasjon. Periodiske fyrtåmforespørsler blir foretatt under tilkobling mellom en trådløs sende/motta-iimretning (WTRU) og et aksesspunkt (AP) på et WLAN. Et måleforespørselsfelt som korresponderer med en fyrtåmforespørsel innbefatter en målevarighetsverdi og et kanalnummer for hvilket forespørselen gjelder. Fyrtåmforespørselen muliggjør en skaimemodus som innbefatter "aktiv skaimemodus", "passiv skaimermodus" og "fyrtåmtabellmodus".

Base station implementing a physical layer automatic repeat request

A base station implementing physical layer automatic repeat request includes a transmitter (38) and a receiver (52). The transmitter has a physical layer transmitter for receiving data, format the received data into packets transmitting the packets and retransmitting packets in response to failure to receive a corresponding acknowledgment for a given packet; an acknowledgment receiver (56) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (52) has a physical layer receiver for demodulating the packets; a combiner/decoder (50-1-50-n) for buffering, decoding and detecting packet errors; and an acknowledgment generator for generating an acknowledgment for each packet if that packet has an acceptable error rate.

Method and apparatus of communicating a beacon report

A beacon signal may be provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID. In Passive Scan mode, the measuring STA passively receives on the specified channel and return a beacon report containing one information element for each STA from which it detects a beacon or probe response. In Beacon Table mode, the measuring STA returns a beacon report containing the current contents of its beacon table without performing additional measurements.

Base station implementing a physical layer automatic repeat request

A base station implementing physical layer automatic repeat request includes a transmitter (38) and a receiver (52). The transmitter has a physical layer transmitter for receiving data, format the received data into packets transmitting the packets and retransmitting packets in response to failure to receive a corresponding acknowledgment for a given packet; an acknowledgment receiver (56) for receiving the corresponding acknowledgment; and an adaptive modulation and coding controller for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver (52) has a physical layer receiver for demodulating the packets; a combiner/decoder (50-1-50-n) for buffering, decoding and detecting packet errors; and an acknowledgment generator for generating an acknowledgment for each packet if that packet has an acceptable error rate.

Received signal to noise indicator

A wireless transmit/receive unit comprising a radio frequency signal measurement device that is configured to produce a value indicating a radio frequency signal, noise and interference received power at an antenna connector. An average noise plus interference measuring device is configured to produce a value indicating a measured average noise plus interference metric. A received signal to noise indication calculation device is configured to calculate a received signal to noise indicator from the value indicating a radio frequency signal, noise and interference received power at an antenna connector and the value indicates a measured average noise plus interference metric.

Coordination of silent periods for dynamic spectrum manager (dsm)

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing,receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

Service-based approach to channel selection and network configuration for television white space networks

A method for managing channel selection in a dynamic spectrum management network includes receiving a spectrum allocation request; based on the source of the spectrum allocation request, checking for available channels; based on the source of the spectrum allocation request, collecting sensing and usage data for the available channels; providing the channel usage data to an entity that transmitted the spectrum allocation request.

Physical layer automatic repeat request (ARQ) system

Method and apparatus for measuring interference in wireless stations

Metrics for estimating RF interference may be derived from measurements of idle channel noise, channel utilization, medium access delay, STA throughput, BSS throughput, and frame error rate. Further, metrics may be derived from the prior list of directly measured items in combination, as ratios and by rate of change analysis. RF interference is measured indirectly by measuring total idle channel power or by measuring changes in communication channel efficiency and frame errors.

SYSTEM AND METHOD FOR MEASURING THE RECEIVING CHANNEL PERFORMANCE INDICATOR (RCPI)

METHOD OF INTERFERENCE MEASUREMENT IN WIRELESS STATIONS

Wireless transmit/receive unit for transmitting a beacon report and method for use therein

Received signal to noise indicator

A method and device may be used to produce a received interference value in wireless communications. A wireless transmit/receive unit comprising a radio frequency signal measurement device may be configured to produce a value indicating a radio frequency signal, noise and interference received power. An average noise plus interference measuring device may be configured to produce a value indicating a measured average noise plus interference metric. A received signal to noise indication calculation device may be configured to calculate a received signal to noise indicator from the value indicating a radio frequency signal, noise and interference received power and the value may indicate a measured average noise plus interference metric.

Method and apparatus for measuring interference in wireless stations

A method for measuring interference at a station (STA) comprising to measure a perceived idle channel noise power value associated with the STA over a plurality of measurement periods and calculating a difference value between two of the idle channel noise power values; and determining that radio frequency (RF) interference is detected on a condition that the difference value is greater than a threshold.

Distributed reservation contention access (drca) for wireless local area network (wlan) carrier sense multiple access (csma) stations

A method and apparatus are disclosed for enabling high-efficiency communication in wireless local area network (WLAN) systems. A station (STA) may receive an Uplink Priority List (UPL) from an access point (AP). In one example embodiment, a STA may send a request for prioritized access to an AP. The STA may then receive an ordered queue of STAs granted contention free prioritized access in a predetermined time interval, which may be referred to as the Exclusive Priority Access (EPA) period. The STA may then determine whether it is identified in the ordered queue of STAs granted prioritized access. The STA may then access a medium such as a Carrier Sense Multiple Access (CSMA) wireless medium associated with the IEEE 802.11 network, in turn with other STAs in the ordered queue per the queue order during the predetermined time interval using an inter-frame spacing, thereby enabling contention free access.

System and method for received channel power indicator (rcpi) measurement

A received channel power indicator (RCPI) value is used as a measure of the received RF power in the selected channel, measured at the antenna connector. This parameter is a measure by the PHY sublayer of the received RF power in the channel measured over the PLCP preamble and over the entire received frame. RCPI is a monotonically increasing, logarithmic function of the received power level defined in dBm.

System and method for measuring received channel power indicator (RCPI)

A POINT OF ACCESS (AP) CONFIGURED TO PROVIDE CHANNEL MANAGEMENT IN A WIRELESS NETWORK FOR OTHER PHONES AND WIRELESS TRANSMISSION / RECEPTION UNIT (WTRUS) WIRELESS COMMUNICATION CAPACITIES WITH EACH IN WIRELESS CHANNELS

Un punto de acceso (AP) configurado para proveer gerenciamiento de canal en una red inalámbrica para otros APs y unidad inalámbricas de transmision/recepcion (WTRUs) capaces de comunicaciones inalámbricas, con cada uno en canales inalámbricos, APque comprende: un receptor configurado para recibir datos de demanda de tráfico no servido de WTRUs ubicadas dentro de un rango de servicio inalámbrico de dicho AP; un procesador configurado para calcular un elemento de carga BSS para cada una deuna pluralidad de categorías de acceso; y un transmisor configurado para anunciar el elemento de carga BSS a WTRUs dentro de un rango de servicio del AP. An access point (AP) configured to provide channel management in a wireless network for other APs and wireless transmission / reception unit (WTRUs) capable of wireless communications, with each on wireless channels, APs comprising: a receiver configured to receive WTRU traffic demand data from WTRUs located within a wireless service range of said AP; a processor configured to calculate a BSS load element for each of a plurality of access categories; and a transmitter configured to announce the BSS load element to WTRUs within a range of AP service.

Single carrier-frequency domain equalization (SC-FDE) base station having a physical layer automatic repeat request mechanism

Method and system for conserving battery power of mesh points in a mesh network

Method and system for transferring information between network management entities of a wireless communication system

System und verfahren für empfangskanalleistungsindikatiormessungen (rcpi)

Method and system for conserving battery power of mesh points in a mesh network

A method and system for conserving power of battery-powered mesh points (MPs) in a mesh network are disclosed. In one embodiment, a centralized controller is provided in the mesh network. Each of the MPs signal information associated with conserving MP battery power and provide indications of battery power levels associated with the respective MPs to the centralized controller. The centralized controller optimizes the configuration of the mesh network based on the signaling information for conserving MP battery power and the battery power level indications. In an alternate embodiment, each of the MPs individually monitor traffic flowing through the respective MP and a level of battery power associated with the respective MP. Each of the MPs determine whether to activate a power saving function associated with the respective MP and signal information associated with conserving MP battery power to neighboring MPs in the mesh network.

Power efficient mesh point and intergrated circuit incoperated therein for use in a mesh network

Method and system for conserving battery power of mesh points in a mesh network

A method and system for conserving power of battery-powered mesh points (MPs) in a mesh network are disclosed. In one embodiment, a centralized controller is provided in the mesh network. Each of the MPs signal information associated with conserving MP battery power and provide indications of battery power levels associated with the respective MPs to the centralized controller. The centralized controller optimizes the configuration of the mesh network based on the signaling information for conserving MP battery power and the battery power level indications. In an alternate embodiment, each of the MPs individually monitor traffic flowing through the respective MP and a level of battery power associated with the respective MP. Each of the MPs determine whether to activate a power saving function associated with the respective MP and signal information associated with conserving MP battery power to neighboring MPs in the mesh network.

Fremgangsmate og system for a spare batterieffekt i maskepunkter i et maskenettverk

En fremgangsmåte og system for å bevare effekt i batteriforsynte maskepunkter (MPer) i et maskenettverk blir fremlagt. I en utførelse er en sentralisert kontroller anordnet i maskenettverket. Hver av MPene signalerer informasjon assosiert med bevaring av MP batterieffekt og gir indikasjoner om batterieffektnivåer assosiert med de respektive MPene til den sentraliserte kontrolleren. Den sentraliserte kontrolleren optimaliserer konfigurasjonen av maskenettverket basert på signaleringen av informasjonen for bevaring av MP batterieffekt og batterieffektnivåindikasjonene. I en alternativ utførelse vil hver av MPene individuelt monitorere trafikkstrøm gjennom den respektive MP og et nivå på batterieffekt assosiert med den respektive MP. Hver av MPene bestemmer om det skal aktiveres en effektsparefunksjon assosiert med den respektive MP og signalerer informasjon assosiert med bevaring av MP batterieffekt til nabo MPer i maskenettverket.

Method and system for conserving battery power of mesh points in a mesh network

A method and system for conserving power of battery-powered mesh points (MPs) in a mesh network are disclosed. In one embodiment, a centralized controller is provided in the mesh network. Each of the MPs signal information associated with conserving MP battery power and provide indications of battery power levels associated with the respective MPs to the centralized controller. The centralized controller optimizes the configuration of the mesh network based on the signaling information for conserving MP battery power and the battery power level indications. In an alternate embodiment, each of the MPs individually monitor traffic flowing through the respective MP and a level of battery power associated with the respective MP. Each of the MPs determine whether to activate a power saving function associated with the respective MP and signal information associated with conserving MP battery power to neighboring MPs in the mesh network.

Method and system for conserving battery power of mesh points in a mesh network

Method and system for conserving battery power of mesh points in a mesh network

A method and system for conserving power of battery-powered mesh points (MPs) in a mesh network are disclosed. In one embodiment, a centralized controller is provided in the mesh network. Each of the MPs signal information associated with conserving MP battery power and provide indications of battery power levels associated with the respective MPs to the centralized controller. The centralized controller optimizes the configuration of the mesh network based on the signaling information for conserving MP battery power and the battery power level indications. In an alternate embodiment, each of the MPs individually monitor traffic flowing through the respective MP and a level of battery power associated with the respective MP. Each of the MPs determine whether to activate a power saving function associated with the respective MP and signal information associated with conserving MP battery power to neighboring MPs in the mesh network.

Method and apparatus for determining and managing congestion in a wireless communications system

無縣通信系統中決定及管理壅塞之方法及裝置

本發明提供一種網路管理方法，尤其是在IEEE 802.11及IEEE 802.11k標準中，其係透過使用兩個新的MAC測量而具有優點。兩個新的測量包含WTRU上鏈流量負載測量，以及一AP服務負載測量，且當在正交頻分多工(OFDM)及碼分多重存取2000(CDMA 2000)系統內容中之8022.11k實施時，至少適用於其層1及層2，但亦適用於其他方案。本發明亦提供一種方法，用以判定和通知在一無線區域網路(WLAN)系統中的擁擠。本發明亦提供一種方法，用以在當偵測到擁擠時管理擁擠。本發明的一個樣態是實施於使用載波感測多重存取/碰撞避免(CSWMA/CA)機制之無線系統中。本系統及裝置較佳地係實施於不同形式之選擇性配置WTRUs中。

無縣通信系統中決定及管理壅塞之方法及裝置

本發明提供一種網路管理方法，尤其是在IEEE 802.11及IEEE 802.11k標準中，其係透過使用兩個新的MAC測量而具有優點。兩個新的測量包含WTRU上鏈流量負載測量，以及一AP服務負載測量，且當在正交頻分多工(OFDM)及碼分多重存取2000(CDMA 2000)系統內容中之8022.11k實施時，至少適用於其層1及層2，但亦適用於其他方案。本發明亦提供一種方法，用以判定和通知在一無線區域網路(WLAN)系統中的擁擠。本發明亦提供一種方法，用以在當偵測到擁擠時管理擁擠。本發明的一個樣態是實施於使用載波感測多重存取/碰撞避免(CSWMA/CA)機制之無線系統中。本系統及裝置較佳地係實施於不同形式之選擇性配置WTRUs中。

Method and apparatus for determining and managing congestion in a wireless communications system

Fremgangsmate og anordning for a fastsla og handtere overbelastning i et tradlost kommunikasjonssystem

Forbedret fremgangsmåte for nettverksadministrasjon, spesielt i sammenheng med standardene IEEE 802.11 og IEEE 802.1lk, ved hjelp av to nye MAC - målinger, med medfølgende fordeler. De to nye målingene innbefatter WTRU "uplink" - trafikklastmålinger, og en AP-tjenestelastmåling og er generelt anvendbar på i det minste lagene 1 og 2 som anvendt på i det minste 802.1lk i sammenheng med OFDM og CDMA 2000 systemer, men er anvendbar i andre scenarier også. En fremgangsmåte for bestemmelse og kunngjøring av metning er også tilveiebrakt til trådløse lokalnettverk (WLAN) systemer. Den foreliggende oppfinnelsen introduserer også en fremgangsmåte for å administrere metning når metning blir detektert. Dette aspektet ved den foreliggende oppfinnelsen anvendes i første rekke på trådløse systemer som benytter "Carrier Sense Multiple Access/ Collision Avoidance" (CSMA/CA) - mekanismen.

電機及電子工程師學會 (ieee) 802.11標準站台、電機及電子工程師學會 (ieee) 802.11標準存取點及用於其中之方法

無線通信系統中決定及管理壅塞之方法及裝置

無線通信系統中決定及管理壅塞之方法及裝置

無線通信系統中決定及管理壅塞之方法及裝置

Method and apparatus for determining and managing congestion in a wireless communications system

AN IMPROVED METHOD OF NETWORK MANAGEMENT, PARTICULARLY IN THE CONTEXT OF STANDARDS IEEE802.11 AND IEEE802.11K, THROUGH TWO NEW MAC MEASUREMENTS, WITH ATTENDANT ADVANTAGES. THE TWO NEW MEASUREMENTS INCLUDE WTRU UPLINK TRAFFIC LOADING MEASUREMENT, AND AN AP SERVICE LOADING MEASUREMENT AND IS GENERALLY APPLICABLE AT LEAST TO LAYERS 1 AND 2 AS APPLIED TO A LEAST 802.11K IN THE CONTEXT OF OFDM AND CDMA 2000 SYSTEMS, BUT IS APPLICABLE TO OTHER SCENARIOS AS WELL, A METHOD FOR DETERMINING AND ADVERTISING CONGESTION IS ALSO PROVIDED FOR A WIRELESS LOCAL AREA NETWORK (WLAN) SYSTEM. THE PRESENT INVENTION ALSO INTRODUCES A METHOD FOR MANAGING CONGESTION WHEN CONGESTION IS DETECTED. THIS ASPECT OF THE PRESENT INVENTION APPLIES PRIMARILY TO WIRELESS SYSTEMS THAT USE THE CARRIER SENSE MULTIPLE ACCESS/COLLISION AVOIDANCE (CSMA/CA) MECHANISM. THE METHODS ARE ADVANTAGEOUSLY IMPLEMENTED IN SELECTIVELY CONFIGURED WTRUs OF VARIOUS FORMS.

Method for Physical Layer Automatic Repeat Request for a Subscriber Unit

Method for physical layer automatic repeat request for a subscriber unit

Method for physical layer automatic repeat request for a subscriber unit