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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3373. Отображено 100.
12-01-2012 дата публикации

Method for informing user equipment of downlink control message construction information in cellular system

Номер: US20120009934A1
Автор: Bin Chul Ihm, Jeong Ki Kim, Jin Soo Choi, Su Nam Kim
Принадлежит: LG ELECTRONICS INC

A method for transmitting control messages from a base station to a user equipment in a cellular system is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, MCS levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages.

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Номер записи: 1
23-02-2012 дата публикации

Method And Apparatus For Performing Uplink Transmissions In A Wireless Communications System

Номер: US20120044897A1
Автор: Mats SÅGFORS, Stefan Wager
Принадлежит: Individual

The present invention relates to methods and apparatus for performing uplink transmission in a wireless communications system. A mobile terminal is provided with a set of available transport formats by receiving at least one UL grant comprising a transport format indication pointing to one or more transport formats. The mobile terminal then selects a suitable transport format from the set, for example in dependence on propagation channel conditions, for transmission of a scheduled transreceive at least one UL mission.

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Номер записи: 2
17-05-2012 дата публикации

Systems and methods of providing error tolerant robust simplex wireless data for systems employing time correlated data transfer

Номер: US20120124452A1
Автор: Darryl I. PARMET, Jamal Haque, Mark D. DuBois
Принадлежит: Honeywell International Inc

Systems and methods of providing error tolerant robust simplex wireless data for systems employing time correlated data transfer are provided. In one embodiment, a system comprises: sensors that produce samples of time correlated data; and a node coupled to the sensors by a wireless link. The link comprises a primary stream for simplex transmission of data packets, and a secondary stream for simplex transmission of delayed data packets, the delayed data packets a delayed retransmission of the time correlated data. When the node receives a first data packet from a first sensor via the primary stream, the data receiving node check validity. When the first data packet is corrupted, the node validity checks a second data packet received via the secondary stream. When both packets contain corrupted data, the node builds a reconstructed plurality of sequential time correlated data samples based on non-corrupted data samples from within the data packets.

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Номер записи: 3
20-09-2012 дата публикации

Wireless communication system, wireless communication apparatus and wireless communication method

Номер: US20120236918A1
Автор: Koji Ikuta
Принадлежит: NEC Corp

In a wireless communication system performing wireless communication via a wireless transmission path, a first wireless communication apparatus includes a receiver that receives a wireless signal via a wireless transmission path, a disconnection detector that detects disconnection of a wireless line connected to a second communication apparatus, a modulation controller that selects a modulation scheme, enabling communication under poor conditions in a transmission path, rather than a modulation scheme which has been used in wireless communication, and a transmitter that notifies the modulation scheme selected by the modulation scheme controller to the second wireless communication apparatus. The second wireless communication apparatus includes a receiver that receives the selected modulation scheme from the first wireless communication apparatus, and a transmitter that transmits signals to the first wireless communication apparatus based on the selected modulation scheme which is received by the receiver.

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Номер записи: 4
07-03-2013 дата публикации

System and Method for Wireless Communications

Номер: US20130058205A1
Автор: YANG Tang
Принадлежит: FutureWei Technologies Inc

A system and method for wireless communications is provided. A method for operating in a communications network includes receiving a codebook, the codebook includes a plurality of codewords, and determining if the codebook satisfies a constant modulus property. The method also includes in response to determining that the codebook does not satisfy the constant modulus property, converting the codebook into a codebook satisfying the constant modulus property, and storing the codebook satisfying the constant modulus property. The method further includes storing the codebook in response to determining that the codebook does satisfy the constant modulus property, and causing to transmit a transmission to a communications device, wherein the transmission is encoded using a codeword in the stored codebook.

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Номер записи: 5
23-05-2013 дата публикации

COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND DATA FRAME RETRANSMISSION CONTROL METHOD

Номер: US20130132786A1
Автор: Nakamura Yasuhiro, Sahara Toru, Takamatsu Nobuaki, Tanigawa Hironobu
Принадлежит: KYOCERA CORPORATION

A mobile station device configured to communicate with a base station device by a time division duplex (TDD) scheme, and to transmit retransmission data to the base station device by an automatic retransmission scheme in response to reception acknowledgement information transmitted from the base station device, the mobile station device including a controller configured to determine a number of frames from a reception of the reception acknowledgement information to a transmission of the retransmission data, based on a position of a reception slot within a reception frame, the reception slot including the reception acknowledgement information. 1. A mobile station device configured to communicate with a base station device by a time division duplex (TDD) scheme , and to transmit retransmission data to the base station device by an automatic retransmission scheme in response to reception acknowledgement information transmitted from the base station device , comprising:a controller configured to determine a number of frames from a reception of the reception acknowledgement information to a transmission of the retransmission data, based on a position of a reception slot within a reception frame, the reception slot including the reception acknowledgement information.2. A communication control method used in a mobile station device configured to communicate with a base station device by a time division duplex (TDD) scheme , and to transmit retransmission data to the base station device by an automatic retransmission scheme in response to reception acknowledgement information transmitted from the base station device , comprising:determining a number of frames from a reception of the reception acknowledgement information to a transmission of the retransmission data, based on a position of a reception slot within a reception frame, the reception slot including the reception acknowledgement information. This application is a Continuation of application Ser. No. 12/441,510 ...

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Номер записи: 6
23-05-2013 дата публикации

LIGHTING CONTROL PROTOCOL

Номер: US20130132787A1
Автор: Carr Edward J., Hick Robert L., Leinen Richard A., Maddox Paul S.
Принадлежит: LEVITON MANUFACTURING CO., INC.

A digital lighting control network protocol with forward and backward frames, each of the frames including an error check code. A no-acknowledgment (NAK) signal is sent from a receiving node to a transmitting node responsive to the error check code. An interface circuit of the receiving node may include an energy storage section to store at least some energy from the network while receiving digital signals, and an output section to transmit digital signals to the network using the stored energy. The interface circuit may also include a high voltage buffer circuit. The transmitting node may send forward frames to receiving nodes based on device type. 1. A method comprising: 'altering a state of an electrical load in response to the received frame if no error is detected; and', 'receiving a forward frame transmitted by a transmitter via a two-wire connection, the forward frame including a payload, stop bits;'}transmitting a no-acknowledgement (NAK) signal to the transmitter if an error is detected.2. The method of claim 1 , wherein receiving the forward frame comprises receiving a forward frame including error check information to allow detection of an error in the received forward frame.3. The method of claim 2 , wherein the error check information includes an error code.4. The method of claim 1 , wherein transmitting a no-acknowledgement signal comprises transmitting a no-acknowledgement signal upon detection of an error in a payload of the forward frame claim 1 , a reception error claim 1 , or a timeout error.5. The method of claim 2 , wherein transmitting the signal comprises asserting a dominant bit as a no-acknowledgement pulse on a data line during a period of time corresponding to the stop bits.6. The method of claim 5 , wherein asserting the dominant bit comprises shorting a buss of a network to cause a voltage fluctuation.7. The method of claim 1 , further comprising transmitting a backward frame to the transmitter upon receiving the forward frame.8. The ...

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Номер записи: 7
23-05-2013 дата публикации

METHOD FOR TRANSMISSION OF DATA IN A RADIO COMMUNICATION SYSTEM, FIRST NETWORK NODE AND SECOND NETWORK NODE THEREOF

Номер: US20130132788A1
Автор: BRAUN Volker, Doetsch Uwe
Принадлежит: ALCATEL LUCENT

The invention relates to a method (MET) for transmitting data from a first network node (BS) of a radio access network of a radio communication system to a second network node (MS) of the radio access network, and wherein the method (MET) comprises the steps of transmitting (M) a first negative acknowledgement (N) from the second network node (MS), if the second network node (MS) cannot recover error free first data (D), the first data (D) being data from a single data source of the radio access network or for a single data sink of the radio access network, determining (M) a combination (COMB) of the first data (D) and of at least second data (D) by applying a superposition of the first data (D) and the at least second data (D), the at least second data (D) being further data from the single data source or for the single data sink, and transmitting (M) the combination (COMB) to the second network node (MS). The method further relates to the first network node (BS) for use in the radio communication system and to the second network node (MS) for use in the radio communication system. 2. Method according to claim 1 , wherein the method further comprises:recovering the at least second data at the second network node by subtracting an estimate of the first data of at least one previous transmission from an estimate of the combination, andrecovering the first data at the second network node by subtracting an estimate of the at least second data of at least one previous transmission from the estimate of the combination.3. Method according to claim 2 , wherein the determining for the combination is applied claim 2 , if the first negative acknowledgement and the at least one second negative acknowledgement are transmitted at the second network node within a predefined time interval and wherein an indication for the transmission of the combination is implicitly provided to the second network node by transmitting the first negative acknowledgement and the at least one second ...

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Номер записи: 8
30-05-2013 дата публикации

COMMUNICATION SYSTEM AND COMMUNICATION APPARATUS

Номер: US20130139018A1
Автор: Horihata Satoshi, KURACHI Ryo, Nishimura Masanobu, TAKADA Hiroaki
Принадлежит:

In a network in which a plurality of ECUs are connected to one another with a common bus, one or more slots are allocated to each ECU in advance, and the plurality of ECUs cyclically transmit messages in an order prescribed in relation to the slots. When each ECU transmits the message related to one slot, each ECU creates and transmits a message including data to be transmitted to other ECUs, and information representing respectively a success/failure of the message reception related to other slots. Each ECU checks information of ACK field included in a message received during one cycle from message transmission related to one slot to a next message transmission related to said one slot. When the message related to one slot is not accurately received by the other ECUs, retransmits the message in the next transmission related to said one slot. 111-. (canceled)12. A communication system , comprising:a plurality of communication apparatuses connected with a common communication line,wherein a message transmitted by one communication apparatus among the plurality of communication apparatuses is received by other communication apparatuses,wherein one or more transmission rights are allocated to each of the plurality of the communication apparatuses in advance and the plurality of communication apparatuses cyclically transmit messages in an order prescribed in relation to the allocated transmission rights,wherein each communication apparatus includes:a message transmitting part creating and transmitting a message including a plurality of success/failure information of reception, each of which represents a success/failure of message reception related to each transmission right, and data to be transmitted to another communication apparatus; anda message retransmitting part retransmitting a message according to the success/failure information of reception included in the message received from another communication apparatus.13. The communication system according to claim 12 ...

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Номер записи: 9
30-05-2013 дата публикации

METHOD OF TRANSMITTING DATA USING CONSTELLATION REARRANGEMENT

Номер: US20130139020A1
Автор: Cho Han Gyu, Choi Jin Soo, Chung Jae Hoon, HAN Jong Young, KIM Jong Min, Lee Suk Woo, Moon Sung Ho, NAM Seung Woo, PARK Hyung Ho
Принадлежит: LG ELECTRONICS INC.

A data retransmission method using hybrid automatic repeat request (harq) includes transmitting a data block, receiving a retransmission request signal for the data block, generating a retransmission block by performing swapping or inversion between bits constituting the data block according to the retransmission request signal, and transmitting the retransmission block. 1. A method for performing hybrid automatic repeat request (HARQ) increment redundancy (IR) in a wireless communication system , the method comprising:storing encoded information bits into a circular buffer;selecting a transport block which is a part of the encoded information bits in the circular buffer to perform HARQ IR,{'sup': 'n', 'mapping the transport block onto a constellation for 2-Quadrature Amplitude Modulation (QAM) in accordance with a mapping rule, where n denotes a modulation order; and'}transmitting the mapped transport block to a receiver,wherein a starting point of the transport block in the circular buffer is changed for HARQ retransmission, andwherein the mapping rule is changed when transmitted bits wrap-around at the end of the circular buffer.2. The method of claim 1 , wherein the mapping rule is changed between a first mapping rule and a second mapping rule.3. The method of claim 2 , wherein each n bits in the transport block is mapped on the constellation for 2-QAM claim 2 , and the first mapping rule is {b claim 2 , . . . claim 2 , b} and the second mapping rule is {b claim 2 , . . . claim 2 , b}.4. The method of claim 3 , wherein n is four or six.5. A transmitter configured to perform hybrid automatic repeat request (HARQ) increment redundancy (IR) in a wireless communication system claim 3 , comprising:a radio frequency (RF) unit configured to transmit and receive a radio signal; and store encoded information bits into a circular buffer;', 'select a transport block which is a part of the encoded information bits in the circular buffer to perform HARQ IR,', {'sup': 'n', ' ...

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Номер записи: 10
13-06-2013 дата публикации

Transport block set segmentation

Номер: US20130148577A1
Автор: Ariela Zeira, Nader Bolourchi, Stephen E. Terry
Принадлежит: InterDigital Technology Corp

Data of a transport block set is to be transmitted in a wireless communication system. Segmentation information for potential segmentation of the data is provided. The data is transmitted with a first specified modulation and coding scheme. The data is received and it is determined whether the received data meets a specified quality. When the specified quality is not met, a repeat request is transmitted. The first specified modulation and coding set is changed to a second specified modulation and coding set. In response to the repeat request, the data is segmented into a plurality of segments supported by the second specified modulation and coding set in accordance with the provided segmentation information. The segments are transmitted and at least two of the segments are transmitted separately.

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Номер записи: 11
13-06-2013 дата публикации

METHOD AND APPARATUS FOR DECODING

Номер: US20130151920A1
Автор: Fattal Shahar, Haiut Moshe, Mayrench Ronen, Ullman Barak
Принадлежит: MARVELL WORLD TRADE LTD.

Aspects of the disclosure can provide a method and an apparatus to decode a data stream based on multiple transmissions with efficient usages of storage and power resources. The method can include receiving a first plurality of encoded code blocks corresponding to a first transmission of a transport block, decoding the first plurality of encoded code blocks into decoded code blocks, error detecting the decoded code blocks, and storing a decoding history of the decoded code blocks. Further, the method can include receiving a second plurality of encoded code blocks corresponding to a retransmission of the transport block. The second plurality of encoded code blocks can map the first plurality of encoded code blocks, respectively. The method can selectively decode a subset of the second plurality of encoded code blocks based on the decoding history. In addition, the method can include storing soft bits for code blocks that failed decoding. 1. A method for decoding a data stream in a wireless device , comprising:receiving a first plurality of encoded code blocks corresponding to a first transmission of a transport block;decoding the first plurality of encoded code blocks into decoded code blocks;error detecting the decoded code blocks;storing a decoding history of the decoded code blocks;receiving a second plurality of encoded code blocks corresponding to a retransmission of the transport block, the second plurality of encoded code blocks corresponding to the first plurality of encoded code blocks respectively; andselectively decoding a first subset of the second plurality of encoded code blocks, without decoding a second subset of the second plurality of encoded code blocks, based on the decoding history.2. The method according to claim 1 , wherein the second plurality of encoded code blocks had been encoded identically as the first plurality of encoded code blocks.3. The method according to claim 1 , wherein the second plurality of encoded code blocks had been encoded ...

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Номер записи: 12
20-06-2013 дата публикации

Method for Retransmitting Fragmented Packets

Номер: US20130159807A1
Автор: CIBLAT Philippe, LE MARTRET Christophe, Marcille Sébastien
Принадлежит: THALES

A method is provided for retransmitting fragmented packets for which a transference of retransmission credit is performed from one fragment onto the next. The method makes it possible to do away with the drawbacks of the methods existing by appreciably improving performance in terms of untransmitted packet rate and by making it possible to configure the distribution of the error probabilities for the fragments of an IP packet. 1. A method for retransmitting fragmented packets between an emitter and a receiver , said fragmented packets being obtained by fragmentation of a data packet to be transmitted , wherein said method comprises at least the following steps , for each fragmented packet:{'b': '1', 'assigning a persistence P(i) of transmission to each fragmented packet, so that the sum of the persistences over the set of said fragmented packets arising from a data packet is equal to a predetermined overall cost C of transmitting said data packet and that the persistence P() assigned to the first fragmented packet is strictly less than said overall cost C;'}adding an error-detecting code CRC to each fragmented packet;incrementing a transmission credit counter c(i), initialized beforehand to 0, and transmitting said fragmented packet to the receiver;on receipt of a positive acknowledgement of receipt of said fragmented packet, transferring the transmission credit remaining P(i)−c(i) to the next fragmented packet: P(i+1)=P(i+1)+P(i)−c(i); if the transmission credit counter c(i) is strictly less than the persistence P(i), retransmitting said fragmented packet and incrementing said transmission credit counter c(i),', 'in the converse case, inferring the failure of the transmission of said fragmented packet., 'on receipt of a negative acknowledgement of non-receipt of said fragmented packet or if no acknowledgement is received after a predetermined time span2. The method of retransmission as claimed in claim 1 , wherein the distribution of the persistences P(i) that are ...

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Номер записи: 13
27-06-2013 дата публикации

FRACTIONAL HARQ RE-TRANSMISSION

Номер: US20130166983A1
Автор: Graumann Peter
Принадлежит: WI-LAN, INC.

Methods and apparatus are described for determining, via a Hybrid Automatic Repeat Request (HARQ) module, that a maximum number of retransmissions has been reached for a HARQ packet. The HARQ module may communicate an internal NACK to a message retransmission module indicating a transmission failure. The message retransmission module may retransmit at least a part of the message. The retransmission may be performed prior to the expiration of a timer. 1. A method for use in a transmitting station for error control , the method comprising:determining, at a Hybrid Automatic Repeat Request (HARQ) module, that a maximum number of retransmissions has been reached for a HARQ packet, the HARQ packet representing at least a portion of a message;communicating, by the HARQ module to a message retransmission module, an internal NACK indicating a transmission failure; andretransmitting at least a part of the message by the message retransmission module.2. The method of claim 1 , wherein the retransmitting is performed prior to expiration of a timer.3. The method of claim 2 , wherein the timer is associated with retransmission of the message.4. The method of claim 1 , wherein the retransmitting at least a part of the message comprises retransmitting the message.5. The method of claim 4 , wherein the internal NACK indicates the part of the message to be retransmitted.6. The method of claim 1 , wherein the retransmitting by the retransmission module is performed on a condition that a retransmission counter at the retransmission module does not exceed a predetermined threshold for a maximum number of retransmissions.7. The method of claim 6 , further comprising incrementing claim 6 , at the message retransmission module claim 6 , the retransmission counter.8. The method of claim 1 , wherein the internal NACK is a multi-level NACK.9. The method of claim 1 , wherein the transmitting station is a base station.10. The method of claim 1 , wherein the transmitting station is a client ...

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Номер записи: 14
11-07-2013 дата публикации

METHOD AND APPARATUS FOR DATA RECEPTION ERROR RECOVERY IN MOBILE TERMINAL

Номер: US20130179747A1
Автор: PARK Hyunjin
Принадлежит: SAMSUNG ELECTRONICS CO. LTD.

A method and an apparatus for data reception error recovery in a mobile terminal are provided. When a mobile terminal detects an error in data received from a memory card, the method and the apparatus enable the mobile terminal to re-receive the data from the memory card for error recovery. The data reception error recovery method, for a mobile terminal connected with a memory card, includes sending a data request command to the memory card, determining whether data corresponding to the data request command is received from the memory card, and sending, when corresponding data is not received from the memory card, a state transition command, which forces the memory card to transition to a transfer state so that the memory card is able to send data to the mobile terminal, to the memory card. 1. A method for data reception error recovery in a mobile terminal connected with a memory card , the method comprising:sending a data request command to the memory card;determining whether data corresponding to the data request command is received from the memory card; andsending, when corresponding data is not received from the memory card, a state transition command, which forces the memory card to transition to a transfer state so that the memory card is able to send data to the mobile terminal, to the memory card.2. The method of claim 1 , further comprising sending claim 1 , after the sending of the state transition command claim 1 , a data request command to the memory card again.3. The method of claim 2 , wherein the determining of whether corresponding data is received comprises determining whether corresponding data is received within a threshold time after sending the data request command.4. The method of claim 3 , wherein the determining of whether corresponding data is received further comprises determining claim 3 , when corresponding data is received within the threshold time claim 3 , whether the received data is valid.5. The method of claim 4 , further comprising ...

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Номер записи: 15
18-07-2013 дата публикации

Method and System for Handling of a Transport Block Size Change in an Adaptive Retransmit Order

Номер: US20130182653A1
Автор: Mark Earnshaw, Zhijun Cai
Принадлежит: Research in Motion Ltd

A method and apparatus for handling a downlink control information indication for retransmission, the method receiving a downlink control information indication for retransmission of a hybrid automatic repeat request (HARQ) process; and if a transport block size in the downlink control information has changed compared with a transport block size associated with the HARQ process or a previous uplink grant for the HARQ process: handling the downlink control information indication for retransmission.

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Номер записи: 16
15-08-2013 дата публикации

PACKET RETRANSMISSION METHOD IN A WIRELESS TRANSMITTER

Номер: US20130212446A1
Автор: Verwaest Frederik
Принадлежит: THOMSON LICENSING

The present invention concerns a wireless device and a method at a wireless device for transmitting a packet, said method comprising the steps of setting a lifetime value to a packet to transmit and, while the packet lifetime has not expired and the packet transmission fails: retransmitting the packet up to a retry limit, and suspending transmitting said packet during a pause time before transmitting the packet up to a retry limit. 17-. (canceled)8. A method at a wireless device for transmitting a packet , said method comprising the steps of:setting a lifetime value to a packet to transmit;while the packet lifetime has not expired and the packet transmission fails:transmitting the packet, up to a retry limit, andsuspending transmitting said packet during a pause time before transmitting the packet up to the retry limit.9. Method according to claim 8 , said pause time corresponding to the time needed to transmit a packet a number of a retry limit times.10. Method according to claim 8 , said pause time corresponding to the time needed to transmit a packet a number of a retry limit times at the lowest transmission rate.11. Method according to claim 8 , comprising the step of discarding said packet when the packet lifetime expires or the packet transmission succeeds.12. Method according to claim 8 , said method being performed for audio and video packets only.13. Wireless device comprising:A wireless interface for communicating in a wireless network, setting a lifetime value to a packet to transmit; and', 'while the packet lifetime has not expired and the packet transmission fails, transmitting the packet, up to a retry limit, and suspending transmitting said packet during a pause time before transmitting the packet up to a retry limit., 'A retransmission module for14. Wireless device according to claim 13 , comprising Interference detection module for detecting interferences in the wireless network.15. Wireless device according to claim 13 , said Interference detection ...

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Номер записи: 17
22-08-2013 дата публикации

ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS

Номер: US20130215948A1
Автор: Chang Kyung-Hi, Hwang Kyu-Jong, Kim Kwang-Soon, Kim Yun-Hee, Lee Sang-Hyun
Принадлежит: Electronics and Telecommunications Research Institute

Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data. 1. An adaptive transmit method of a transmitter in a wireless communication system with multiple antennas for transmitting data to a receiver with a plurality of receive antennas from the transmitter with a plurality of transmit antennas through an MIMO (multiple input multiple output) channel , comprising:(a) determining a channel coding method, a modulation method, and an antenna transmit method so as to support different data rates according to a characteristic of the MIMO channel, wherein the channel coding method, the modulation method, and the antenna transmit method are classified according to a main transmit mode for supporting different data rates, and the main transmit mode includes either or both of a sub-transmit mode based on the STBC (space time block code) and a sub-transmit mode based on the SM (spatial multiplexing);(b) encoding input data according to the determined main transmit mode;(c) modulating the data encoded in (b) according to the determined sub-transmit mode, mapping them to modulation symbols, and outputting results; and(d) mapping the data modulated in (c) to symbol vectors to be transmitted through each transmit antenna according to the determined sub-transmit mode, and outputting results.2. The ...

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Номер записи: 18
29-08-2013 дата публикации

System and Method for HARQ Entity Configuration

Номер: US20130223344A1
Автор: Bi Hao, Sun Yishen
Принадлежит: Futurewei Technologies, Inc.

A single hybrid automatic repeat request (HARQ) entity can be associated with multiple serving units to achieve lower complexity user-side signal processing during multi-point communication. Additionally, configuring a single HARQ entity to establish HARQ operations with multiple serving units may achieve lower latency communication when users are engaging in multi-point communications, such as coordinated multi-point transmission/reception (CoMP). HARQ entity associations and/or reconfigurations can be achieved through radio resource control (RRC) signaling. 1. A method for a wireless communication system , the wireless communication system having multiple serving units serving a user equipment (UE) , the method comprising:associating a single hybrid automatic repeat request (HARQ) entity with the multiple serving units serving the UE, wherein the single HARQ entity is configured to perform HARQ operations with each of the multiple serving units serving the UE.2. The method of claim 1 , wherein the multiple serving units include two or more serving units that are distinguishable from one another at a medium access control (MAC) layer of the UE.3. The method of claim 1 , wherein the single HARQ entity is configured to perform HARQ operations with all serving units serving the UE.4. The method of claim 1 , wherein associating the single HARQ entity with multiple serving units serving the UE comprises:communicating a radio resource control (RRC) message between a controller and the UE, wherein the RRC message explicitly or implicitly instructs the UE to associate the single HARQ entity with the multiple serving units.5. The method of claim 4 , wherein the RRC message identifies the multiple serving units by specifying a property associated with each of the multiple serving units.6. The method of claim 4 , wherein the RRC message identifies the single HARQ entity by specifying a property associated with the single HARQ entity.7. The method of claim 4 , wherein the RRC ...

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Номер записи: 19
29-08-2013 дата публикации

BLOCK ACKNOWLEDGEMENT MECHANISM INCLUDING SEQUENCE NUMBER ACKNOWLEDGEMENT AND RETRY BIT

Номер: US20130227371A1
Автор: Abraham Santosh P., Asterjadhi Alfred, Merlin Simone, Quan Zhi, Wentink Maarten Menzo
Принадлежит: QUALCOMM INCORPORATED

A method includes sending a sequence number acknowledgement (SN-ACK) from a first device to a second device. The SN-ACK identifies a last consecutively correctly received data unit and includes a retry bit indicating whether at least one data unit of the plurality of data units was received by the first device subsequent to the last consecutively correctly received data unit. The method also includes, when the retry bit has a first value, sending a block acknowledgement (BA) after sending the SN-ACK. The BA includes a bitmap, where each particular bit of the bitmap indicates whether a corresponding data unit was correctly received. When the retry bit has a second value and one or more of the plurality of data units were incorrectly received by the first device, the first device receives a retransmission of one or more data units without sending the BA to the second device. 1. A method comprising:sending a sequence number acknowledgement (SN-ACK) from a first device to a second device via a wireless network, the SN-ACK associated with a plurality of data units sent by the second device to the first device, wherein the SN-ACK identifies a last consecutively correctly received data unit of the plurality of data units, and wherein the SN-ACK includes a retry bit indicating whether at least one data unit of the plurality of data units was received by the first device subsequent to the last consecutively correctly received data unit;when the retry bit has a first value, sending a block ACK (BA) to the second device after sending the SN-ACK, wherein the BA includes a bitmap and wherein each particular bit of the bitmap indicates whether a corresponding data unit of the plurality of data units was correctly received by the first device; andwhen the retry bit has a second value and one or more of the plurality of data units were incorrectly received by the first device, receiving a retransmission of the one or more data units without sending the BA to the second device.2. ...

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Номер записи: 20
12-09-2013 дата публикации

Method and Arrangement for Network-Coded Bidirectional Relaying

Номер: US20130235733A1
Автор: Manssour Jawad
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

The present invention relates to coded multidirectional relaying in a network communication system. By sending information about the processing () and modulation () of data, performed in a network coding node (), to a first () and second () network decoding nodes, network decoding can be correctly performed by the first and second network decoding nodes in general and not just for special communication cases.

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Номер записи: 21
26-09-2013 дата публикации

ACK-NACK Signaling Enhancements

Номер: US20130254613A1
Автор: Gowrisankar SOMICHETTY, Sriram Rajagopal
Принадлежит: Broadcom Corp

An ACK-NACK feedback message indicates which code words within a transport block that were received in error. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.

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Номер записи: 22
03-10-2013 дата публикации

Method and a Device for Improved Retransmissions

Номер: US20130262950A1
Автор: Axelsson Håkan, Timner Ylva
Принадлежит: Telefonaktiebolaget lM Ericsson (publ)

The invention discloses a method for use in a cellular system with an RBS which controls traffic to and from a cell, with one User Equipment, UE, in the cell. The RBS and the UE receive and transmit information between each other, one of them being a sending party and the other one is a receiving party, and errors in messages which are received can be detected by the receiving party by a first error detection method and if errors are detected in received messages, the receiving party can request a retransmission from the transmitting party. The receiving party stores the order in which retransmissions are requested, so that erroneous retransmissions may be detected by the receiving party without the first error detection method. 1. (canceled)2. A method , performed at a receiving device , for detecting erroneous retransmissions of messages , the method comprising:detecting errors in messages received from a sending device;requesting the sending device to retransmit the messages in which errors are detected in a specified retransmission order determined by the receiving device; anddetecting erroneous retransmissions of messages based on whether the retransmitted messages are received from the sending device in the specified retransmission order and without aid of a retransmission timer.3. The method of wherein the specified retransmission order comprises a non-sequential order of messages in which the errors were detected.4. The method of further comprising storing the specified retransmission order at the receiving device.5. The method of wherein detecting erroneous retransmissions of messages based on whether the retransmitted messages are received from the sending device in the specified retransmission order and without aid of a retransmission timer comprises detecting a retransmitted message as being erroneous if the retransmitted message is not received in the specified retransmission order.6. The method of further comprising detecting the erroneous ...

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Номер записи: 23
03-10-2013 дата публикации

METHOD AND APPARATUS FOR ACK/NACK REPORTING

Номер: US20130262951A1
Автор: Ahl Johnny, Axelsson Håkan, Schliwa-Bertling Paul, Shol Lars, Torstensson Hans
Принадлежит: Telefonaktiebolaget lM Ericsson (publ)

A method, node, and system are provided that overcome problems with using inaccurate estimates of a current round trip time RTT for verifying the ACK/NACK information received in an ACK/NACK report, e.g., a piggy-backed ACK/NACK (PAN). This is accomplished by de-coupling the RTT from the ACK/NACK analysis performed in the sending node that receives the ACK/NACK report. As a result, unnecessary re-transmissions are avoided, communication delays are decreased, and spectrum and other system resources are used more efficiently. 1. A method for providing an acknowledgement (ACK)/negative acknowledgement (NACK) report from a first radio node to a second radio node , comprising:the first radio node transmitting over a radio channel data blocks to the second radio node;the second radio node receiving a signal from the first radio node;detecting that some data blocks are correctly received and some data blocks are not correctly received;generating an ACK/NACK message identifying correctly received data blocks as void and not correctly received data blocks as NACKed, where void means that no ACK/NACK information is provided such the second radio node does not confirm in the ACK/NACK message that a data block is correctly received from the first radio node;the second radio node sending the ACK/NACK message to the first radio node;the first radio node receiving and decoding the ACK/NACK message and setting the data blocks identified as NACKed to be retransmitted by the first radio node; andthe first radio node transmitting the data blocks set to be re-transmitted to the second radio node.2. The method in claim 1 , wherein none of the data blocks in the ACK/NACK message are identified as ACKed.3. The method in claim 1 , wherein neither the first nor the second radio node need to determine a current RTT between them to perform the method in .4. The method in claim 1 , wherein the first radio node is a mobile radio station claim 1 , the second radio node is a base station.5. The ...

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Номер записи: 24
10-10-2013 дата публикации

METHOD AND APPARATUS FOR SELECTIVE ACKNOWLEDGEMENT OF PACKETS FROM AN ACCESS PROBE

Номер: US20130268820A1
Автор: Attar Rashid Ahmed Akbar, Lott Christopher Gerard, Patwardhan Ravindra Manohar, Sun Jing
Принадлежит: QUALCOMM INCORPORATED

Aspects of the present disclosure are directed to apparatuses and methods capable of selective acknowledgement of packets from an access probe. In one aspect, an apparatus includes: a transceiver configured to receive a set of frames associated with an access probe message from a wireless node, wherein the access probe message includes a plurality of frames, and the set of frames comprises a subset of the plurality of frames; and a processing system configured to generate a selective acknowledgement message based on a determination of whether each frame in the set of frames is received correctly. The acknowledgement includes an indication of receipt for at least one frame in the set of frames. Other aspects, embodiments, and features are also claimed and described. 1. A method for wireless communications comprising:transmitting, to a wireless node, an access probe message comprising a plurality of frames;determining whether an acknowledgement associated with a subset of frames in the plurality of frames is received from the wireless node, wherein the acknowledgement comprises an indication of receipt by the wireless node for at least one frame in the subset of frames; andretransmitting the plurality of frames based on the receipt of the acknowledgement.2. The method of claim 1 , wherein each frame in the plurality of frames comprises an error detection code configured to allow the wireless node to determine whether a frame is communicated without error.3. The method of claim 1 , wherein the indication of receipt in the acknowledgement comprises a bitmask.4. The method of claim 3 , wherein the retransmitting of at least a portion of the plurality of frames comprises retransmitting all frames not yet received successfully as indicated in the bitmask.5. The method of claim 1 , wherein the retransmitting of at least a portion of the plurality of frames comprises retransmitting the plurality of frames using a higher power.6. The method of claim 1 , wherein the ...

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Номер записи: 25
17-10-2013 дата публикации

Method for Handling Transmission Errors On a Telecommunications Transmission Line

Номер: US20130272110A1
Автор: Eriksson Per-Erik, Lu Chenguang
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

When data retransmission is used to handle errors caused by impulse noise, buffer memory requirements may be reduced and/or data rate increased by detecting impulse noise at the transmitting equipment and initiating retransmission in response to such detection rather than waiting for a retransmission indication from the receiving end. The decision to retransmit may be made dependent on the strength or other properties of the detected noise burst. The decision criterion may be made adaptive by correlating noise burst properties with received retransmission indications or the absence thereof. 112-. (canceled)13. A method , in a first communications equipment , for handling transmission errors on a telecommunications transmission line , the first communications equipment being adapted for connection to a first end of the telecommunications transmission line and for communication via the telecommunications transmission line with a second communications equipment connected to a second end of the telecommunications transmission line , the method comprising:the first communications equipment buffering one or more data units which are to be transmitted so as to enable later retransmission;the first communications equipment transmitting the one or more data units to the second communications equipment;the first communications equipment detecting a first burst of impulse noise at the first end of the line; selecting one or more of the buffered data units as selected data units;', 'retransmitting the selected data units to the second communications equipment;, 'the first communications equipment, in response to the detectionwherein the selecting comprises selecting buffered data units such that at least one of the selected data units corresponds to a data unit previously transmitted at such a time that its reception by the second communications equipment may have coincided with a second burst of impulse noise at the second end of the line, the second burst of impulse noise ...

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Номер записи: 26
17-10-2013 дата публикации

DEVICE, SYSTEM AND METHOD OF WIRELESS COMMUNICATION BETWEEN CIRCUITS

Номер: US20130272342A1
Автор: Andrey Mihailovich, Pustovalov Evgeny Vasilievich, Turlikov
Принадлежит:

Some demonstrative embodiments include devices, systems and/or methods of wireless communication between circuits. For example, an integrated chip may include a plurality of wirelessly interconnected electronic circuits to communicate wireless pulse-position-modulation (PPM) signals over a common wireless communication channel during a predefined sequence of time slots; and a monitor circuit connected to the plurality of electronic circuits via a plurality of wired feedback links, the monitor circuit is to monitor the wireless channel, and to feedback via the feedback links a sequence of event feedbacks corresponding to the sequence of time slots. 1. An integrated chip comprising:a plurality of wirelessly interconnected electronic circuits to communicate wireless pulse-position-modulation (PPM) signals over a common ultra-wideband (UWB) wireless communication channel during a predefined sequence of time slots; anda monitor circuit connected to said plurality of electronic circuits via a plurality of wired feedback links, said monitor circuit is to monitor said wireless channel, and to feedback via said feedback links a sequence of event feedbacks corresponding to said sequence of time slots,wherein, if said monitor circuit cannot decode a first packet from a first wireless PPM signal during a first time slot, then said monitor circuit is to buffer data of said first wireless PPM signal, to feedback over said feedback links a first event feedback indicating said first wireless PPM signal is not decodable, to receive a second wireless PPM signal during a second time slot, and, if a second packet is successfully decodable from the second wireless signal, to feedback over said feedback links a second event feedback indicating whether the first packet is successfully restorable based on the buffered data and the second wireless signal.2. The integrated chip of claim 1 , wherein said first and second packets comprise first and second different packets transmitted by first ...

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Номер записи: 27
24-10-2013 дата публикации

METHOD AND SYSTEM OF REDUCING POWER SUPPLY NOISE DURING TRAINING OF HIGH SPEED COMMUNICATION LINKS

Номер: US20130279622A1
Автор: Chang Stephen S., Chaudhuri Santanu, IYER VENKATRAMAN
Принадлежит:

A method and system to reduce the power supply noise of a platform during the training of high speed communication links. In one embodiment of the invention, the device has logic to stagger a bit lock pattern for each of one or more communication links and scramble a training sequence for each of the one or more communication links. By doing so, it removes the need for anti-noise circuits and in turn, reduces the silicon area and power of the devices. Further, by having the logic in the physical layers to facilitate the training of the communication links, it eliminates the need to redesign the package of the devices to shift the resonant frequencies. 1. An apparatus comprising: stagger a bit lock pattern for each of one or more communication links; and', 'scramble a training sequence for each of the one or more communication links., 'logic to2. The apparatus of claim 1 , wherein the logic to stagger the bit lock pattern for each of the one or more communication links is to:send the bit lock pattern on only one of the one or more communication links during each unit interval (UI).3. The apparatus of claim 1 , wherein the bit lock pattern is a pseudo random binary sequence (PBRS) with a known seed claim 1 , and wherein the logic to scramble the training sequence for each of the one or more communication links is to perform a bit-wise XOR operation of the training sequence with the staggered bit lock pattern.4. The apparatus of claim 1 , wherein the training sequence is a deskew training sequence.5. The apparatus of claim 1 , wherein the one or more communication links operate in accordance with one of QuickPath Interconnect (QPI) claim 1 , Peripheral Component Interconnect Express (PCIe) claim 1 , and Scalable Memory Interconnect (SMI).6. The apparatus of claim 1 , wherein the one or more communication links comprises one of a serial claim 1 , parallel claim 1 , half-duplex claim 1 , and full-duplex communication links.7. The apparatus of claim 1 , wherein the ...

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Номер записи: 28
31-10-2013 дата публикации

Systems and methods for wireless communication of long data units

Номер: US20130286961A1
Автор: Lin Yang, Sameer Vermani
Принадлежит: Qualcomm Inc

Systems and methods for communicating long packets are described herein. In some aspects, an apparatus for wireless communication includes a processor and transmitter. The processor is configured to determine a modulation coding scheme (MCS) of a plurality of MCSs for a plurality of data symbols, each MCS of the plurality of MCS having a different MCS index value. Further, the processor is configured to generate a data unit comprising a set of training fields periodically inserted between the plurality of data symbols after every n number of data symbols, where n depends on the MCS index value of the MCS. The transmitter is configured to transmit wirelessly via wireless local area network the data unit to one or more devices.

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Номер записи: 29
31-10-2013 дата публикации

VARIABLE ACKNOWLEDGE RATE TO REDUCE BUS CONTENTION IN PRESENCE OF COMMUNICATION ERRORS

Номер: US20130290803A1
Автор: Busaba Fadi Y., Carlough Steven R., Krygowski Christopher A., Prasky Brian R., Shum Chung-Lung K.
Принадлежит: INTERNATIONAL BUSINESS MACHINES CORPORATION

A variable write back indicator control is provided to control the amount of data to be re-transmitted when a packet error occurs. A hardware controller obtains an indication that an acknowledge rate or an amount of set write back indicators of a data frame is to be adjusted. The indication is based on an error rate of data transmission over a communication bus. Based on obtaining the indication that the amount of set write back indicators is to be adjusted, one or more write back indicators are adjusted. 1. A method of facilitating communications in a computing environment , said method comprising:obtaining, by a hardware controller, an indication that an amount of set write back indicators of a data frame is to be adjusted, the indication based on an error rate of data transmission over a communication bus of the computing environment; andadjusting one or more write back indicators based on obtaining the indication.2. The method of claim 1 , wherein the adjusting comprises setting at least one write back indicator of the one or more write back indicators.3. The method of claim 2 , wherein a set write back indicator indicates that an acknowledge packet is to be sent indicating whether an error has occurred in a packet since a last acknowledge packet was sent.4. The method of claim 2 , wherein more than one write back indicator is adjusted claim 2 , and wherein the adjusting further comprises resetting at least one write back indicator of the one or more write back indicators.5. The method of claim 1 , wherein the adjusting comprises resetting at least one write back indicator of the one or more write back indicators.6. The method of claim 1 , wherein the hardware controller comprises a transmitter hardware controller claim 1 , and wherein the obtaining comprises receiving the indication from a receiver hardware controller based on the receiver hardware controller comparing the error rate with at least one threshold to determine that the amount of set write back ...

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Номер записи: 30
31-10-2013 дата публикации

Method and System for Data Transmission in a Data Network

Номер: US20130290804A1
Автор: HAUSTEIN Thomas, Inderst Robert, LUO Jijun, Matthiesen Fred, Migge Kay, Weiser Sebastian
Принадлежит:

The present invention relates to a method and system for data transmission in a data network. According to the method, a data packet is sent from a sender to a receiver. If a data packet is incorrectly received on the receiver, a repeat request is sent from the receiver to the sender. Upon receiving the repeat request on the sender, the data packet is resent from the sender to the receiver. After having received on the sender a predetermined number of repeat requests requesting the resending of the same data packet, a predetermined quantity of copies of the data packet is sent from the sender to the receiver, wherein the predetermined quantity includes at least two copies, or a predetermined quantity of additional information packets is sent from the sender to the receiver. 113.-. (canceled)14. An apparatus comprising:one or more processors; andone or more memories including computer program code, the one or more memories and the computer program code configured, with the one or more processors, to cause the apparatus to perform:sending a data packet;receiving a repeat request requesting the resending of the data packet, if the data packet was incorrectly received;resending the data packet; andafter having received a predetermined number of repeat requests requesting the resending of the data packet, sending a predetermined quantity of duplicate copies of the data packet, wherein the predetermined quantity comprises at least two duplicate copies, or sending a predetermined quantity of additional information packets.15. The apparatus as claimed in claim 14 , wherein each of said duplicate copies of the data packet comprises a retransmission number and a process identifier.16. The apparatus as claimed in claim 14 , wherein the predetermined number and/or the predetermined quantity is/are determined based on a resource utilization degree.17. The apparatus as claimed in claim 14 , wherein the one or more memories and the computer program code are further configured ...

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Номер записи: 31
21-11-2013 дата публикации

METHOD AND APPARATUS FOR ADJUSTING HARQ TIMING

Номер: US20130308464A1
Автор: Lee Sook Jin, PARK Jisoo, PARK Youn Ok
Принадлежит: Electronics and Telecommunications Research Institute

A method for adjusting a hybrid automatic repeat request (HARQ) timing is provided. A base station adjusts a HARQ timing of a mobile station according to a system environment, and transmits radio resource allocation information including the adjusted HARQ timing information to the mobile station. The mobile station adjusts HARQ timing according to HARQ timing information, and transmits a HARQ signal according to the adjusted HARQ timing. 1. A method of adjusting hybrid automatic repeat request (HARQ) timing by a base station , the method comprising:adjusting HARQ timing of a mobile station according to a system environment;transmitting a radio resource allocation signal including the adjusted HARQ timing information; andreceiving from the mobile station a HARQ signal transmitted according to the HARQ timing information.2. The method of claim 1 , further comprisingmeasuring, by the base station, the system environment.3. The method of claim 1 , further comprisingreceiving information regarding the system environment measured by the mobile station from the mobile station.4. The method of claim 1 , wherein the radio resource allocation signal includes downlink radio resource allocation information claim 1 , andthe HARQ signal includes a HARQ feedback signal with respect to a downlink HARQ data packet.5. The method of claim 4 , wherein the HARQ timing information includes a transmission timing offset claim 4 , andthe HARQ feedback signal is transmitted in a frame having a frame index changed by the transmission timing offset from a frame index of a transmission time before being adjusted.6. The method of claim 1 , wherein the radio resource allocation signal includes uplink radio resource allocation information claim 1 , andthe HARQ signal includes an uplink HARQ data packet.7. The method of claim 6 , wherein the HARQ timing information includes a transmission timing offset claim 6 , andthe HARQ data packet is transmitted in a frame having a frame index that is changed ...

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Номер записи: 32
26-12-2013 дата публикации

ENHANCED TTI BUNDLING WITH FLEXIBLE HARQ MERGING

Номер: US20130343273A1
Автор: Barbieri Alan, Xu Hao
Принадлежит:

A method, an apparatus, and a computer program product for wireless communication are provided in which mandated retransmission of data packets according to a compressed timeline provide an alternative to TTI bundling. A first data unit is transmitted in a first subframe and automatically retransmitted in one or more non-consecutive subframes before a response to a preceding transmission or retransmission of the first data unit has been processed. The retransmissions are terminated after an acknowledgement is processed. The automatic retransmissions occur periodically with a predetermined number of intervening subframes transmitted before each retransmission of the first data unit. 1. A method of wireless communication , comprising:transmitting a first data unit in a first subframe using one of a plurality of redundancy versions of the first data unit;automatically retransmitting the first data unit in non-consecutive subframes using the plurality of redundancy versions of the first data unit, wherein the first data unit is retransmitted before a hybrid automatic repeat request (HARQ) response to a preceding transmission or retransmission of the first data unit has been processed; andterminating retransmissions of the first data unit after a processed HARQ response is determined to comprise an acknowledgement (ACK).2. The method of claim 1 , wherein the automatic retransmissions occur periodically.3. The method of claim 2 , wherein a predetermined number of intervening subframes are transmitted before each retransmission of the first data unit.4. The method of claim 3 , further comprising transmitting and automatically retransmitting a second data unit using redundancy versions of the second data unit in a plurality of the intervening subframes until a processed HARQ response to the transmission or the retransmission of the second data unit is determined to comprise an ACK.5. The method of claim 4 , wherein the second data unit is transmitted and retransmitted in ...

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Номер записи: 33
02-01-2014 дата публикации

WIRELESS COMMUNICAITON APPARATUS, WIRELESS COMMUNICATION CONTROL APPARATUS, WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION PROGRAM STORAGE MEDIUM, WIRELESS COMMUNICATION CONTROL METHOD, AND WIRELESS COMMUNICATION CONTROL PROGRAM STORAGE MEDIUM

Номер: US20140006891A1
Автор: OBUCHI Kazuhisa, Okamoto Shinya, OTONARI Akihide, SHIMIZU Hirotoshi, SHINOHARA Chiaki, SOEJIMA Yoshinori, YAMASAKI Miki
Принадлежит: FUJITSU LIMITED

A wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit, including a received data determining section that performs a data check for received data by using the data check bit to determine whether the data is error; a received result transmitting section that, when determined to be error, discards the data and transmits a retransmission request to other wireless communication apparatus of the transmitting origin, whereas determined to be not error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin; and a retransmission asking section that determines whether a format of the data is incorrect or normal, and when determined to be normal, passes the data to predetermined processing, whereas when determined to be incorrect, discards the data and asks the received result transmitting section to request retransmission of the data. 1. A wireless communication apparatus for transmitting and receiving MAC PDU with a data check bit comprising:a receiving section that receives the MAC PDU from another wireless communication apparatus of a transmitting origin;a received MAC PDU determining section that performs a data check for the received MAC PDU by using the data check bit and determines whether or not the MAC PDU is an error;a received result transmitting section that, when a result of the determination is an error, discards the MAC PDU and transmits a retransmission request for the MAC PDU to the other wireless communication apparatus, and when a result of the determination is not an error, transmits a message indicating that the MAC PDU is normal to the other wireless communication apparatus;a format determining section that determines whether a format of the MAC PDU is incorrect or normal, and that passes a result determined by the format determining section to a predetermined processing when the format of the MAC PDU is determined ...

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Номер записи: 34
09-01-2014 дата публикации

BROADCASTING OF DATA FILES AND FILE REPAIR PROCEDURE WITH REGARDS TO THE BROADCASTED DATA FILES

Номер: US20140010090A1
Автор: Xiao Shiyuan
Принадлежит:

A method in a Broadcast Multicast Service Centre, BM-SC, comprising at least two file repair servers is arranged for performing a file repair session following a broadcast transmission of a data file to a User Equipment, UE, in a radio communication system. After having determined whether a first of the file repair servers is experiencing, or is predicted to experience, an overload condition, an information message, indicating the existing or predicted overload experience of the first file repair server and capable of indicating a time interval, T, which shall have elapsed before the UE is allowed to transmit a file repair request to the first file repair server, is transmitted to the UE in case it is determined that the first file repair server is experiencing, or is predicted to experience, an overload condition. 1. A method in a Broadcast Multicast Service Centre , BM-SC , comprising at least two file repair servers for performing a file repair session following a broadcast transmission of a data file to a User Equipment , UE , in a radio communication system , the method comprising:determining whether a first of said file repair servers is experiencing, or is predicted to experience, an overload condition, andtransmitting, to the UE, an information message indicating the existing or predicted overload experience of the first file repair server and capable of indicating a time interval, T, which shall have elapsed before the UE is allowed to transmit a file repair request to the first file repair server, in case it is determined that the first file repair server is experiencing, or is predicted to experience, an overload condition.2. The method according to claim 1 , comprising the further step of:sampling traffic statistics data during a predetermined sampling time period during a file repair session, andwherein, in case of predicted overload experience, the determining comprises predicting, based at least partially on the sampled traffic statistics data, on how ...

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Номер записи: 35
30-01-2014 дата публикации

COMMUNICATION APPARATUS, TERMINAL APPARATUS AND COMMUNICATION METHOD

Номер: US20140032988A1
Автор: MURAKAMI Yutaka, OKAMURA Shutai
Принадлежит: Panasonic Corporation

A loss correction encoding device having an improved capability of loss correction using LDPC-CC includes a rearranging unit that rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a check polynomial of the loss correction code used in a loss correction encoding unit. Specifically, the rearranging unit rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit distributes the information data to information blocks from n information packets, where n satisfies the formula Kmax×(q−1)≦n. 1. A communication apparatus comprising:a receiving section that receives a signal including control information;a setting section that sets whether or not to perform erasure correction and whether or not to perform retransmission in accordance with the control information;a signal generating section that outputs one of a transmission signal, a signal obtained by erasure correction coding the transmission signal, and a retransmission signal which is a signal transmitted in the past in accordance with a setting by the setting section; anda modulating section that modulates a signal output from the signal generating section.2. The communication apparatus according to claim 1 , wherein the setting section sets whether or not to perform the erasure correction in accordance with a number of terminal apparatuses of a communicating party.3. The communication apparatus according to claim 2 , wherein the setting section decides the number of the terminal apparatuses by using a request signal included in the control signal.4. The communication apparatus according to claim 1 , wherein the setting section sets whether or not to perform the retransmission in accordance with a retransmission request signal included in the control information.5. A terminal apparatus comprising:a receiving ...

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Номер записи: 36
06-02-2014 дата публикации

User equipment and method for semi-persistent scheduling

Номер: US20140036843A1
Автор: Kamran Etemad, Rath Vannithamby, Roshni M. Srinivasan, Shantidev Mohanty
Принадлежит: Intel Corp

The various inventive embodiments relate to arrangement of information elements (IEs) for persistent and/or dynamic allocations in a wireless broadband network and include optimization techniques to eliminate the repetitive information fields from the downlink (DL)-Persistent-IEs, uplink (UL)-Persistent-IEs, DL-IEs, and UL-IEs. Elimination of repetitive information fields reduces MAP overhead. In addition embodiments relate to methods to use the same hybrid automatic repeat request (HARQ) region to contain persistent as well as non-persistent allocations. The use of the same HARQ region for persistent as well as non-persistent allocations further reduces the MAP overhead as it requires a single header to define the HARQ region instead of the two headers that are required to define two different HARQ regions: one for persistent allocation and the second one for non-persistent allocations.

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Номер записи: 37
27-02-2014 дата публикации

Hybrid Automatic Repeat-Request Combination for Wireless Transmissions

Номер: US20140059400A1
Автор: Cao Jinyu, Zhang Senjie
Принадлежит:

In one embodiment, a method for data communication may include receiving a first set of soft bit values in a Hybrid Automatic Repeat-Request (HARQ) buffer using a first bit width. The method may also include soft combining the first set of soft bit values with a second set of soft bit values to obtain a set of combined soft bit values. The method may also include transforming the set of combined soft bit values from the first bit width to a decoder input bit width to obtain a set of transformed soft bit values. 1. A method for data communication , comprising:receiving a first set of soft bit values in a Hybrid Automatic Repeat-Request (HARQ) buffer using a first bit width;soft combining the first set of soft bit values with a second set of soft bit values to obtain a set of combined soft bit values; andtransforming the set of combined soft bit values from the first bit width to a decoder input bit width to obtain a set of transformed soft bit values.2. The method of including determining a maximum absolute value of the set of combined soft bit values.3. The method of including determining a bit width difference between the maximum absolute value and the decoder input.4. The method of including rightward shifting each of the set of combined soft bit values by the bit width difference.5. The method of claim 4 , wherein rightward shifting each of the set of combined soft bit values comprises using arithmetic right shifting.6. The method of including decoding the set of transformed soft bit values.7. The method of claim 6 , wherein decoding the set of transformed soft bit values comprises forward error correction decoding.8. The method of including receiving the first set of soft bit values using at least one antenna.9. The method of claim 1 , wherein soft combining the first set of soft bit values with the second set of soft bit values includes adding each value of the first set to a corresponding value of the second set.10. The method of including soft combining the ...

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Номер записи: 38
20-03-2014 дата публикации

METHOD AND APPARATUS FOR ASSIGNING HYBRID-AUTOMATIC REPEAT REQUEST PROCESSES

Номер: US20140079039A1
Автор: Terry Stephen E., Zhang Guodong
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for transmitting enhanced uplink (EU) data is disclosed. Configuration parameters for EU operation are received, including a priority associated with each MAC-d flow and a maximum number of H-ARQ transmissions associated with each MAC-d flow. A H-ARQ process to use for transmission for a next TTI is identified. On a condition that the identified H-ARQ process is available for new data for the next TTI, data is selected for transmission over the EU channel based on MAC-d flow priority, a transmission status is set to indicate a new transmission, and the selected data is transmitted in accordance with the identified H-ARQ process. On a condition that the identified H-ARQ process is not available for new data for the next TTI, the transmission status is set to indicate a retransmission, and data associated with the identified H-ARQ process is retransmitted. 1. A method for transmitting enhanced uplink (EU) data , implemented by a wireless transmit/receive unit (WTRU) , the method comprising:receiving configuration parameters for EU operation, wherein the configuration parameters include a priority associated with each medium access control for dedicated channel (MAC-d) flow and a maximum number of hybrid automatic repeat request (H-ARQ) transmissions associated with each MAC-d flow;identifying a H-ARQ process to use for transmission for a next transmission time interval (TTI);determining whether the identified H-ARQ process is available for new data for the next TTI;on a condition that the identified H-ARQ process is available for new data for the next TTI, selecting data for transmission over the EU channel based on MAC-d flow priority, setting a transmission status to indicate a new transmission, and transmitting the selected data in accordance with the identified H-ARQ process; andon a condition that the identified H-ARQ process is not available for new data for the next TTI, setting the transmission status to indicate a retransmission, and ...

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Номер записи: 39
20-03-2014 дата публикации

METHODS AND APPARATUS FOR ENHANCED STATUS RETRANSMISSION

Номер: US20140082447A1
Автор: Hsu Liangchi, Kanamarlapudi Sitaramanjaneyulu
Принадлежит:

Methods and apparatus of enhanced status retransmission in wireless communication include receiving at least a first portion of a reconfiguration message from a network entity. The methods and apparatus further include detecting an absent second portion of the reconfiguration message. Moreover, the methods and apparatus include sending a retransmission request to the network entity based at least in part on the detecting of the absent second portion of the reconfiguration message and irrespective of a state of a status prohibit timer. Additionally, The methods and apparatus include triggering a status prohibit timer disregard state for at least a portion of a status prohibit time period of the status prohibit timer, wherein the status prohibit timer disregard state permits the sending of the retransmission request during the status prohibit timer period. 1. A method of enhanced status retransmission in wireless communication , comprising:receiving at least a first portion of a reconfiguration message from a network entity;detecting an absent second portion of the reconfiguration message;sending a retransmission request to the network entity based at least in part on the detecting of the absent second portion of the reconfiguration message and irrespective of a state of a status prohibit timer; andtriggering a status prohibit timer disregard state for at least a portion of a status prohibit time period of the status prohibit timer, wherein the status prohibit timer disregard state permits the sending of the retransmission request during the status prohibit timer period.2. The method of claim 1 , further comprising receiving a retransmitted second portion of the reconfiguration message in response to sending the retransmission request to the network entity.3. The method of claim 2 , wherein the first portion claim 2 , the absent second portion and the retransmitted second portion comprise at least one of signaling radio bearer data and data radio bearer data.4. The ...

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Номер записи: 40
27-03-2014 дата публикации

Method and device for transmitting uncompressed video streams

Номер: US20140089516A1
Автор: LAGRANGE PASCAL, SEVIN JULIEN
Принадлежит: CANON KABUSHIKI KAISHA

The present invention concerns a method and a device of transmitting uncompressed video streams. In particular, the method concerns the adaptation of a wireless transmission to bandwidth reduction and packet loss. 1. A method for sending uncompressed video data , wherein the video data comprises binary video components , the method comprising:generating a plurality of packets from a group of video components, each packet, referred to as SB packet, being constituted by bits of the video components grouped according to their significance; andsending generated SB packets, wherein the sending of SB packets containing higher significant bits of the video components takes precedence over the sending of SB packets containing lower significant bits of the video components;re-sending at least some of the SB packets that have not been successfully transmitted;and wherein the sending of a SB packet of lower significance is never made if the SB packets of higher significance corresponding to the same video components have not been successfully transmitted.2. The method according to further comprising:determining available bandwidth for transmission; andwhere sending SB generated SB packets comprises:sending the most of SB packets to fit the available bandwidth, beginning by the most significant ones, meaning containing the most significant bits of the video components.3. The method according to claim 2 , further comprising:receiving at least an acknowledge message from the receiver indicating for each sent SB packet if it has been received correctly;retransmitting SB packets that have not been received correctly;sorting the remaining SB packets, that have not been sent due to preceding retransmission of most significant packets, according to their significance; andsending the most significant remaining SB packets to fit the available bandwidth, beginning by the most significant ones.4. The method according to claim 1 , the transmission being made using frames claim 1 , ...

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Номер записи: 41
01-01-2015 дата публикации

Method and Apparatus for Signal Quality Reporting for Interference-Cancellation Receivers

Номер: US20150003337A1
Автор: Cedergren Andreas, Reial Andres
Принадлежит:

In one aspect, the teachings herein disclose a method and apparatus for signal quality reporting from a wireless apparatus that better reflects the actual interference cancellation efficiency expected at the wireless apparatus for a given transmission interval. In one example, the wireless apparatus knows or predicts the particular modulation and coding schemes (MCSs) that will be used in the transmission of one or more interferer signals for a transmission interval of interest. In turn, it uses those MCS values to estimate the actual interference cancellation efficiency the wireless apparatus will achieve with respect to those interferers. The wireless apparatus estimates and reports signal quality according to its estimated interference cancellation efficiency. Such processing allows the supporting wireless communication network to improve throughput by more aggressively scheduling the wireless apparatus for transmission intervals during which the wireless apparatus exhibits higher interference cancellation efficiency. 1. A method in a wireless apparatus configured for operation in a wireless communication network , the method comprising:receiving a signal from the wireless communication network that includes a desired signal and one or more interferer signals;estimating an initial impairment covariance of the desired signal; estimating a signal quality of the interferer signal;', 'determining a modulation and coding scheme, MCS, of the interferer signal;', 'estimating a cancellation efficiency of the wireless apparatus with respect to the interferer signal, based on the signal quality and MCS of the interferer signal; and', 'calculating an impairment covariance correction term corresponding to the interferer signal, by computing the signal covariance of the interferer signal and scaling the signal covariance according to the cancellation efficiency;, 'for each interferer signalobtaining a compensated impairment covariance for the desired signal by subtracting ...

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Номер записи: 42
01-01-2015 дата публикации

Permute Codes, Iterative Ensembles, Graphical Hash Codes, And Puncturing Optimization

Номер: US20150003557A1
Автор: Balakrishnan Hari, Perry Jonathan, Shah Devavrat D.
Принадлежит: Massachusetts Institute of Technology

Described herein are new error-correction (channel) codes: permute codes, iterative ensembles of permute and spinal codes, and graphical hash codes. In one aspect, a wireless system includes an encoder configured to encode data using one of the aforementioned channel codes. The wireless system also includes a decoder configured to decode the encoded data. 1. A wireless system , comprisingan encoder configured to encode data using a permute code which uses a function over the message bits to directly produce a sequence of constellation symbols for transmission; anda decoder configured to decode the permute code.2. The wireless system of wherein the function is a non-linear function.3. The wireless system of wherein the function is a systematic function.4. The wireless system of wherein the permute code is used in a rateless fashion.5. The wireless system of wherein the decoder is configured to provide feedback to the encoder.6. A method of operating a wireless system which includes a transmitter and a receiver claim 1 , the method comprising:transmitting, via the transmitter, a permute-coded message over a wireless channel; andreceiving, via the receiver, the permute-coded message over the wireless channel.7. The method of claim 6 , further comprising providing feedback from the receiver to the transmitter.8. The method of claim 6 , further comprising claim 6 , at a transmitter:generating a sequence of symbols using message bits and a systematic function; andmapping each symbol to a constellation point.modulating constellation points on a carrier; andtransmitting a signal using the carrier.9. The method of claim 6 , further comprising claim 6 , at a receiver:mapping a signal from an encoder to points on an I-Q plane; anddecoding the points on the I-Q plane.10. A method to encode a message claim 6 , the method comprising:generating a sequence of symbols using message bits and a systematic function; andmapping each symbol to a constellation point.11. The method of ...

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Номер записи: 43
01-01-2015 дата публикации

METHOD AND APPARATUS FOR STABLE SIGNAL DEMODULATION IN COMMUNICATION SYSTEM

Номер: US20150003572A1
Автор: Bae Chi Sung, CHOI Chang Mok, Kang Joon Seong, Kim Sang Joon, Kwon Ui Kun, Park Chang Soon, YOON Seung Keun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals. 1. A signal demodulation method , comprising:demodulating received signals using a difference between a received signal to be demodulated and a preceding signal of the received signal;detecting an erroneous demodulation value based on backward-demodulation of the received signals; andcorrecting the erroneous demodulation value.2. The method of claim 1 , wherein the demodulating comprises:determining a demodulation value of the received signal to be demodulated as a first demodulation value when a differential value is less than a first threshold, the differential value corresponding to a difference between an intensity of the received signal to be demodulated and an intensity of the preceding signal;determining the demodulation value of the received signal to be demodulated as a second demodulation value when the differential value is greater than a second threshold; anddetermining the demodulation value of the received signal to be demodulated to be a demodulation value of the preceding signal when the differential value is a value between the first threshold and the second threshold.3. The method of claim 2 , wherein the detecting comprises:identifying, from the received signals, a received signal of which a demodulation value obtained through forward-demodulation differs from a demodulation value obtained through backward-demodulation; anddetecting the erroneous demodulation value using a reliability level of the received signal.4. The method of claim 2 , wherein the detecting comprises:identifying a bit transition ...

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Номер записи: 44
05-01-2017 дата публикации

REMOTE CONTROL METHODS AND SYSTEMS

Номер: US20170003680A1
Автор: Huang Zhi Cong, Wang Hong Tao
Принадлежит:

Methods and systems are provided for preventing interference from simultaneous data transmissions in a remote control system. A controlled terminal is typically configured to receive control data from a controlling terminal and to transmit feedback data to a monitoring terminal. To prevent interference caused by the simultaneous transmissions of control data and feedback data. The controlling terminal can transmit the control data to the monitoring terminal, which then transmits the control data to the controlled terminal. Such transmission of the control data may be carried out in a way that does not interfere with the transmission of the feedback data. 1. (canceled)2. A system for controlling an unmanned aerial vehicle (UAV) , the system comprising:a first communication module configured to transmit control data directly to the UAV via a first wireless communication link, the control data used to control operations of the UAV;a second communication module configured to transmit the control data to a monitoring terminal located remotely from the UAV, the monitoring terminal configured to transmit the control data to the UAV via a second wireless communication link; andone or more processors, individually or collectively, configured to terminate and reactivate the first wireless communication link based on one or more predetermined criteria.3. The system of claim 2 , wherein terminating the first wireless communication link is implemented by disabling the first communication module or disabling a communication module located on board the UAV configured to receive the control data directly from the first communication module.4. The system of claim 2 , wherein the one or more processors are configured to terminate the first wireless communication link temporarily for a predetermined period of time before reactivating the first wireless communication link.5. The system of claim 2 , wherein the one or more processors are configured to terminate the first wireless ...

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Номер записи: 45
01-01-2015 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING STATUS REPORT IN A MOBILE COMMUNICATION SYSTEM

Номер: US20150006988A1
Автор: Kim Soeng-Hun, Van Der Velde Himke, VAN LlESHOUT Gert-Jan
Принадлежит:

Methods and apparatuses are provided for transmitting a status report by a receiving device in a mobile communication system. A first layer, supporting an ARQ, receives a packet from a transmitting device through a second layer lower than the first layer. The first layer, supporting the ARQ, determines whether the status report is triggered based on at least one triggering condition. If the status report is triggered, based on information representative of a transmission from the second layer, the first layer, supporting the ARQ, constructs a status packet reporting a status of the received packet. The status packet is transmitted to the transmitting device 1. A method for transmitting a status report by a receiving device in a mobile communication system , the method comprising:receiving, by a first layer supporting an Automatic Repeat reQuest (ARQ), a packet from a transmitting device through a second layer lower than the first layer;determining, by the first layer supporting the ARQ, whether the status report is triggered based on at least one triggering condition;constructing, by the first layer supporting the ARQ, if the status report is triggered, based on information representative of a transmission from the second layer, a status packet reporting a status of the received packet; andtransmitting the status packet to the transmitting device.2. The method of claim 1 , wherein the at least one triggering condition is detection of a reception-failure of a packet.3. The method of claim 1 , wherein the at least one triggering condition is satisfied within a pre-determined period.4. The method of claim 1 , further comprising transmitting claim 1 , by the second layer claim 1 , a request for a transmission resource to the transmitting device.5. The method of claim 4 , wherein the request for the transmission resource is based on whether transmission data in the first layer supporting the ARQ of the receiving device is present.6. The method of claim 1 , further ...

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Номер записи: 46
04-01-2018 дата публикации

APPARATUS, SYSTEM AND METHOD OF COMMUNICATING A PHYSICAL LAYER CONVERGENCE PROCEDURE (PLCP) PROTOCOL DATA UNIT (PPDU)

Номер: US20180006866A1
Автор: Cordeiro Carlos, Kasher Assaf, TRAININ Solomon B.
Принадлежит:

Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a Physical Layer Convergence Procedure (PLCP) Protocol Data Unit (PPDU). For example, an apparatus may include circuitry and logic configured to cause a wireless station to transmit a first PPDU to a second wireless station, the first PPDU including a preamble, a header, and a first PLCP Service Data Unit (PSDU), the header including a synchronization (sync) indicator to indicate that the second wireless station is to synchronize a second PPDU to the first PPDU; and to receive the second PPDU from the second wireless station, the second PPDU spaced from the first PPDU by less than a Short Inter Frame Space (SIFS), the second PPDU including a Byte Count, and a second PSDU, the second PPDU including no preamble or a short preamble, which is shorter than the preamble of the first PPDU. 1. An apparatus comprising circuitry and logic configured to cause a first wireless station to:transmit a first physical layer convergence procedure (PLCP) protocol data unit (PPDU) to a second wireless station, the first PPDU comprising a preamble, a header, and a first PLCP Service Data Unit (PSDU), the header comprising a synchronization (sync) indicator to indicate that the second wireless station is to synchronize a second PPDU to the first PPDU; andreceive the second PPDU from the second wireless station, the second PPDU spaced from the first PPDU by less than a Short Inter Frame Space (SIFS), the second PPDU comprising a Byte Count, and a second PSDU, the second PPDU comprising no preamble or a short preamble, which is shorter than the preamble of the first PPDU.2. The apparatus of claim 1 , wherein the second PPDU comprises the sync indicator to indicate that the first wireless station is to synchronize a third PPDU to the second PPDU.3. The apparatus of configured to cause the first wireless station to transmit the third PPDU spaced from the second PPDU by less than the SIFS.4. The ...

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Номер записи: 47
07-01-2021 дата публикации

ADAPTIVE HYBRID AUTOMATIC REPEAT REQUEST (HARQ) COMMUNICATION

Номер: US20210006355A1
Автор: BAI Tianyang, Li Junyi, Luo Tao
Принадлежит:

Certain aspects of the present disclosure provide systems and methods for adaptive hybrid automatic repeat request (HARQ) communication for changing a reference signal (RS) configuration between one or more re-transmissions. In some embodiments, the method includes detecting a failure to decode a first communication from a network entity. The method may also include determining one or more communication metrics associated with the first communication. The method may also include selecting a physical parameter configured to identify the one or more communication metrics associated with the first communication, and transmitting a second communication in accordance with the selected physical parameter to the network entity in response to detecting the failure to decode the first communication. 1. A method for wireless communication , comprising:detecting a failure to decode a first communication from a network entity;determining one or more communication metrics associated with the first communication;selecting a physical parameter configured to identify the one or more communication metrics associated with the first communication; andtransmitting a second communication in accordance with the selected physical parameter to the network entity in response to detecting the failure to decode the first communication.2. The method of claim 1 , wherein the second communication is configured to request a re-transmission of the first communication according to the one or more communication metrics.3. The method of claim 1 , further comprising receiving claim 1 , from the network entity claim 1 , a re-transmission of the first communication in accordance with the one or more communication metrics.4. The method of claim 3 , wherein one of the first communication or the second communication includes a reference signal claim 3 , and wherein the other of the first communication and the second communication excludes a reference signal.5. The method of claim 3 , wherein the first ...

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Номер записи: 48
04-01-2018 дата публикации

FLOW CONTROL WITH ACKNOWLEDGMENT FEEDBACK

Номер: US20180007581A1
Автор: Alpert Yaron, Cariou Laurent, Stacey Robert J.
Принадлежит:

Computer readable media, methods, and apparatuses for flow control with acknowledgment feedback. An apparatus of a wireless device comprising: memory; and processing circuitry coupled to the memory is disclosed. The processing circuity may be configured to determine based on buffer capacity parameters of a station and a receive buffer state of the station at least one of a size, a modulation and coding scheme (MCS), a bandwidth of a subchannel, or a number of spatial streams (NSS) for a frame. The processing circuitry may be further configured to encode the frame based on the size, the MCS, the bandwidth of the subchannel, and the NSS. The processing circuitry may be further configured to configure the wireless device to transmit the frame in accordance with the size, the MCS, the bandwidth of the subchannel, the NSS, and one or both of orthogonal frequency division multiple-access (OFDMA) or multi-user multiple-input multiple-output (MU-MIMO). 1. An apparatus of a wireless device comprising: memory; and processing circuitry coupled to the memory , the processing circuity configured to:determine based on buffer capacity parameters of a station and a receive buffer state of the station at least one of a size, a modulation and coding scheme (MCS), a bandwidth of a subchannel, or a number of spatial streams (NSS) for a frame;encode the frame based on the size, the MCS, the bandwidth of the subchannel, and the NSS; andconfigure the wireless device to transmit the frame in accordance with the size, the MCS, the bandwidth of the subchannel, the NSS, and one or both of orthogonal frequency division multiple-access (OFDMA) or multi-user multiple-input multiple-output (MU-MIMO).2. The apparatus of claim 1 , wherein the buffer capacity parameters comprises one or more from the following group: an indication of how fast a receive buffer of the station is freed claim 1 , an indication of one or more media access control (MAC) processing throughputs claim 1 , an indication of a ...

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Номер записи: 49
04-01-2018 дата публикации

METHOD AND USER EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL, AND METHOD AND BASE STATION FOR RECEIVING UPLINK SIGNAL

Номер: US20180007683A1
Автор: Kim Bonghoe, Kim Kijun, KYEONG Soocheol, NOH Kwangseok, YOU Hyangsun
Принадлежит: LG ELECTRONICS INC.

Disclosed herein are a method and apparatus for transmitting/receiving an uplink signal. A user equipment receives information indicating a data transmission code rate for uplink data. The user equipment channel-codes the uplink data using a channel code corresponding to a channel code rate. The channel code rate is determined among a plurality of predefined channel code rates based on the data transmission code rate. The user equipment transmits the channel coded uplink data. 1. A method for transmitting an uplink signal by a user equipment in a wireless communication system , the method comprising:receiving, by the user equipment, information indicating a data transmission code rate for uplink data;channel-coding, by the user equipment, the uplink data using a channel code corresponding to a channel code rate; andtransmitting, by the user equipment, the channel coded uplink data,wherein the channel code rate is determined among a plurality of predefined channel code rates based on the data transmission code rate.2. The method according to claim 1 ,wherein the plurality of predefined channel code rates have a plurality of predefined channel codes, respectively, andwherein the channel code is one of the plurality of predefined channel codes.3. The method according to claim 1 ,wherein the channel code rate is a channel code rate closest to the data transmission code rate among the plurality of predefined channel code rates, a channel code rate closest to the data transmission code rate among channel code rates larger than the data transmission code rate, a channel code rate closest to a function value of the data transmission code rate among the plurality of predefined channel code rates, or a channel code rate of which function value is the closest one to a function value of the data transmission code rate among the plurality of predefined channel code rates.4. The method according to claim 1 , further comprising:retransmitting, by the user equipment, the uplink ...

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Номер записи: 50
20-01-2022 дата публикации

COMMUNICATION APPARATUS AND COMMUNICATION METHOD

Номер: US20220021437A1
Автор: SUGAYA Shigeru
Принадлежит: Sony Group Corporation

The present technology relates to a communication apparatus and a communication method that permit realization of more reliable communication. 1. A communication apparatus comprising:a control section adapted to perform control such that plural aggregated subframes are sent in a predetermined sequence for each frame included in each of spatially multiplexed streams when a frame is sent to another communication apparatus as plural spatially multiplexed streams.2. The communication apparatus according to claim 1 , whereinthe control section changes a sequence of the subframes for each of the frames.3. The communication apparatus according to claim 1 , whereinthe control section determines the number of spatially multiplexed streams and the number of aggregated subframes commensurate with communication reliability.4. The communication apparatus according to claim 3 , whereinthe control section determines the communication reliability commensurate with attributes of the another communication apparatus.5. The communication apparatus according to claim 2 , whereinthe control section includes, as the frame, at least one frame in which subframes are arranged in order of sequence number.6. The communication apparatus according to claim 2 , whereinthe control section includes, as the frame, at least one frame in which subframes are arranged in reverse order of sequence number.7. The communication apparatus according to claim 2 , whereinthe control section arranges, in each of the frames, the subframes such that the first subframes have different sequence numbers from each other.8. The communication apparatus according to claim 7 , whereinthe subframes are arranged in ascending or descending order of sequence number.10. A communication method comprising:performing control such that plural aggregated subframes are sent in a predetermined sequence for each frame included in each of spatially multiplexed streams when a communication apparatus sends a frame to another ...

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Номер записи: 51
14-01-2021 дата публикации

Uplink Repetition Enhancement

Номер: US20210014002A1
Автор: CHEN Yuqin, Gurumoorthy Sethuraman, Hu Haijing, Kodali Sree Ram, Lovlekar Srirang A., Nimmala Srinivasan, Shikari Murtaza A., Xing Longda, Xu Fangli, Zhang Dawei
Принадлежит:

Apparatuses, systems, and methods for a wireless device to perform methods for enhancing uplink (UL) repetitions for an associated transport block. A user equipment device (UE) may be configured to transmit an indication of cancellation of remaining UL repetitions to a network, e.g., to a network entity, such as a base station, e.g., based, at least in part, on monitored channel conditions. Additionally, a network, e.g., a network entity such as a base station, may be configured to transmit an indication of cancellation of remaining UL repetitions to a UE, e.g., based on successful reception of the associated transport block. 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);one 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 base station, an uplink (UL) repetition configuration associated with a transport block, wherein the UL repetition configuration specifies a number of UL repetitions required for transmission of the transport block;', 'transmit, to the base station, at least a first portion of UL repetitions while monitoring UL channel quality; and', 'transmit, after transmission of the first portion of UL repetitions, an indication that the UE will not transmit additional UL repetitions, wherein the transmission of the first portion of UL repetition does not complete the number of UL repetitions required for transmission of the transport block, and wherein the indication that the UE will not transmit additional UL repetitions is based, at least in part, on the monitored UL channel quality., 'wherein the one or more processors are configured to cause the UE to2. The UE of claim 1 , 'determine, during transmission of the at least first portion of UL ...

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Номер записи: 52
14-01-2021 дата публикации

RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD

Номер: US20210014849A1
Автор: Imamura Daichi, MATSUMOTO Atsushi, Nishio Akihiko, Suzuki Hidetoshi
Принадлежит:

Provided are a radio transmission device and a radio transmission method capable of improving downlink and uplink throughput even when performing dynamic symbol allocation. In the device and the method, BS and MS share a table correlating a basic TF as a combination of parameters such as TB size used for transmitting only user data, an allocation RB quantity, a modulation method, and an encoding ratio, with a derived TF having user data of different TB size by combining L1/L2 control information. Even when multiplexing L1/L2 control information, Index corresponding to the basic TF is reported from BS to MS. 1. A mobile station comprising:a receiver, which, in operation, receives an index indicating a transmission format;circuitry, which, in operation, executes coding processing of data and control information, the coding processing including a code rate adjustment for the data, wherein the code rate adjustment for the data is performed by changing a number of bits of the data with the transmission format depending on whether or not the control information is to be transmitted together with the data; anda transmitter, which, in operation, transmits the data and the control information, of which the coding processing is executed.2. The mobile station according to claim 1 , wherein the code rate adjustment for the data is performed in a way that differentiates a code rate of the data transmitted together with the control information from a code rate of the data transmitted without the control information.3. The mobile station according to claim 1 , wherein the control information is one or both of an acknowledgement/negative-acknowledgement (ACK/NACK) and a channel quality indicator (CQI) to be transmitted together with the data.4. The mobile station according to claim 3 , wherein the code rate adjustment for the data is performed by changing the number of bits of the data depending on whether the data is transmitted together with at least one of the CQI and the ACK/ ...

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Номер записи: 53
19-01-2017 дата публикации

DATA MODULATION METHOD FOR IEEE 802.11 AND IEEE 802.15 DEVICES TO GENERATE LOW FREQUENCY SIGNALS

Номер: US20170019208A1
Автор: CASADEMONT SERRA Jordi, DEMIRKOL Ilker Seyfettin, GARCIA VILLEGAS Eduardo, LOPEZ AGUILERA Elena, OLLER BOSCH Joaquim, PARADELLS ASPAS Josep
Принадлежит:

A data modulation method with low frequency signals, encapsulating a plurality of data along with an identifier corresponding to one or multiple LR receivers, and a given preamble into their associated fields to form a LR frame by means of a formatter. The preamble of the LR frame prepares the LR receiver for the reception of the receiver ID and data. An encoding stage whereby a line code generates a plurality of coded data from an LR frame. The transmission of the coded data using ASK modulation through an encoder, rules the transmission of a frame burst emulating the transmission of a modulated low frequency carrier signal. The frame burst is composed of frames compliant with any standard defined by the IEEE 802.11 Working Group or IEEE 802.15 Working Group. 1. Data modulation method with low frequency signals , comprising:Encapsulating a plurality of binary data with an identifier of at least one LR receiver and a predetermined preamble, in associated fields for generating a LR frame by a formatter, wherein the preamble prepares the LR receiver for receiving,coding the LR frame by a line code to generate a plurality of coded data by an encoder,modulating with ASK to generate a stream of frames, where frames are spaced according to the pattern specified by the encoder.2. Modulation method of claim 1 , wherein the transmitter can be any device compliant with any standard defined by the IEEE 802.11 Working Group.3. Modulation method of claim 1 , wherein the transmitter can be any device compliant with any standard defined by the IEEE 802.15 Working Group.4. Modulation method of wherein the frame stream generated is comprised of the smallest frame defined in the standard followed by the shortest inter-frame spacing allowed by the standard.5. Modulation method of claim 2 , wherein the frame stream generated is comprised of successive null data packet frames (NDP).6. Modulation method of claim 2 , wherein the frame stream generated is comprised of successive control ...

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Номер записи: 54
19-01-2017 дата публикации

METHOD AND APPARATUS FOR DETERMINING REPETITION QUANTITY OF DOWNLINK CONTROL CHANNEL

Номер: US20170019216A1
Автор: Li Zhongfeng
Принадлежит:

Embodiments of the present invention provide a method and an apparatus for determining a repetition quantity of a downlink control channel, which relate to the radio communications field. The method includes: acquiring processing information corresponding to a repetition quantity of a downlink control channel; and sending the downlink control channel to user equipment UE according to the processing information, where the downlink control channel is used to carry processed downlink control information, so that the UE determines the repetition quantity of the downlink control channel according to the processing information. The apparatus includes a first acquisition module and a sending module. In the present invention, a repetition quantity sent by a network side is the same as a repetition quantity detected by UE. 1. An apparatus for determining a repetition quantity of a downlink control channel , wherein the apparatus comprises:a receiver, configured to receive downlink control information carried on a downlink control channel, wherein the downlink control information is processed by a parameter corresponding to a repetition quantity of the downlink control channel; anda processor, configured to determine the repetition quantity of the downlink control channel according to the downlink control channel.2. The apparatus according to claim 1 , wherein the processor is configured to:for any repetition quantity in multiple stored repetition quantities, perform, according to a scrambling sequence corresponding to the repetition quantity, descrambling on the processed downlink control information carried on the downlink control channel;perform verification on descrambled downlink control information according to a cyclic redundancy check (CRC) bit corresponding to downlink control information carried on the downlink control channel; anddetermine the repetition quantity as the repetition quantity of the downlink control channel in a case that the verification succeeds.3. ...

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Номер записи: 55
03-02-2022 дата публикации

LINK ADAPTATION FOR CONCURRENT OFDMA AND NON-OFDMA SIGNALING

Номер: US20220038323A1
Автор: Wilhelmsson Leif
Принадлежит:

Embodiments include methods for a network node configured to communicate with wireless devices via orthogonal frequency division multiple access (OFDMA) signaling and non-OFDMA signaling. Such methods include creating a frequency gap in the OFDMA signaling, with the frequency gap including one or more adjacent OFDM sub-carriers. Such methods include selecting a center frequency for the non-OFDMA signaling to be within the frequency gap and selecting one or more modulation and coding schemes (MCS) for the OFDMA signaling based on interference to the OFDMA signaling by the non-OFDMA signaling. Other embodiments include network nodes configured to perform such methods, and computer-readable media storing computer-executable instructions that embody such methods. 1. A method for a network node configured to communicate with wireless devices via orthogonal frequency division multiple access (OFDMA) signaling and non-OFDMA signaling , the method comprising:creating a frequency gap in the OFDMA signaling, wherein the frequency gap includes one or more adjacent OFDM sub-carriers;selecting a center frequency for the non-OFDMA signaling to be within the frequency gap; andselecting one or more modulation and coding schemes (MCS) for the OFDMA signaling based on interference to the OFDMA signaling by the non-OFDMA signaling.2. The method of claim 1 , wherein selecting the one or more MCS for the OFDMA signaling comprises:selecting a nominal MCS for the OFDMA signaling; andadjusting the MCS of sub-carriers of the OFDMA signaling that are adjacent to the frequency gap to an MCS that is more robust than the nominal MCS.3. The method of claim 1 , further comprising selecting an MCS for the non-OFDMA signaling based on interference to the non-OFDMA signaling by the OFDMA signaling.4. The method of claim 1 , further comprising selecting a size of the frequency gap such that the interference to the OFDMA signaling by the non-OFDMA signaling is not greater than a minimum signal-to- ...

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Номер записи: 56
18-01-2018 дата публикации

METHOD FOR DETERMINING COMMUNICATION METHOD, INFORMATION PROCESSING APPARATUS, AND RECORDING MEDIUM

Номер: US20180019837A1
Автор: NAKASHIMA Kohta, Tamura Yuto
Принадлежит: FUJITSU LIMITED

A method for determining a communication method executed by a processor included in a computer, the method includes selecting a communication method from a plurality of communication methods based on a size of communication data, by referring to selection probability information in which a range of a size of communication data and a probability of selecting a communication method are associated for each of the plurality of communication methods; executing communication using the selected communication method; updating the selection probability information based on a result of the executed communication; and executing communication based on the updated selection probability information. 1. A method for determining a communication method executed by a processor included in a computer , the method comprising:selecting a communication method from a plurality of communication methods based on a size of communication data, by referring to selection probability information in which a range of a size of communication data and a probability of selecting a communication method are associated for each of the plurality of communication methods;executing communication using the selected communication method;updating the selection probability information based on a result of the executed communication; andexecuting communication based on the updated selection probability information.2. The method for determining a communication method according to claim 1 ,wherein the updating includes updating a first selection probability of a first communication method and a second selection probability of a second communication method in accordance with comparison between a first average response time indicating an average value of a response time for the first communication method and a second average response time indicating an average value of a response time for the second communication method.3. The method for determining a communication method according to claim 2 ,wherein the updating ...

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Номер записи: 57
16-01-2020 дата публикации

WIRELESS TELECOMMUNICATIONS

Номер: US20200021390A1
Автор: Beale Martin Warwick, Wei Yuxin, Wong Shin Horng
Принадлежит: SONY CORPORATION

A terminal device for use in a wireless telecommunications system includes: a transceiver operable to perform wireless communication with one or more other terminal devices according to the wireless communications system and to receive speed information from the one or more other terminal devices indicative of a physical speed of the one or more other terminal devices; and a controller configured to select a transmission format, for use in wireless communication by the transceiver, in dependence upon the speed information received from the one or more other terminal devices. 1. A terminal device for use in a wireless telecommunications system , the terminal device comprising:a transceiver operable to perform wireless communication with one or more other terminal devices according to the wireless communications system and to receive speed information from the one or more other terminal devices indicative of a physical speed of the one or more other terminal devices; anda controller configured to select a transmission format, for use in wireless communication by the transceiver, in dependence upon the speed information received from the one or more other terminal devices.2. A terminal device according to claim 1 , comprising a speed detector to detect speed information indicative of a physical speed of the terminal device.3. A terminal device according to claim 2 , in which the controller is configured to select a transmission format claim 2 , for use in wireless communication by the transceiver claim 2 , in dependence upon a detection of a highest speed amongst the speed information.4. A terminal device according to claim 2 , in which the controller is configured to control the transceiver to transmit the speed information indicative of the physical speed of the terminal device to the one or more other terminal devices.5. A terminal device according to claim 1 , in which the controller is configured to select a transmission format from a set of formats having ...

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Номер записи: 58
21-01-2021 дата публикации

RETRANSMISSION CONTROL METHOD

Номер: US20210021377A1
Автор: GOTO Kazuto, IMAIZUMI Yutaka, ITO Kota, KITA Naoki, KUROSAKI Satoshi, OTA Atsushi
Принадлежит:

A receiving station () performs first signal detection processing on a received radio signal, performs a retransmission request to a transmitting station () in a case in which a code error is detected in a detected radio packet for user data, and enqueues the radio packet for user data in a reception buffer in a case in which no code error is detected. In parallel with the first signal detection processing, the receiving station () performs second signal detection processing on the received signal with a longer processing delay than that of the first signal detection processing, and in a case in which no code error is detected in the detected radio packet for user data, the receiving station () enqueues the radio packet for user data in the reception buffer. The receiving station () outputs, at a predetermined timing, the radio packet for user data with no code error detected, the radio packet being enqueued in the reception buffer. 1. A retransmission control method for a radio communication system including a first radio station and a second radio station , the retransmission control method comprising:at the first radio station,transmitting user data via radio to the second radio station, the user data being accommodated in a radio packet for user data; andin response to a retransmission request from the second radio station retransmitting the radio packet for user data; andat the second radio stationreceiving, via radio, the radio packet for user data transmitted in the transmitting or the retransmitting;performing first signal detection processing on a radio signal received in the receiving;performing first code error detection processing on the radio packet for user data detected in the first signal detection processing;in a case in which a code error is detected in the first code error detection, making a retransmission request for the radio packet for user data to the first radio station;in a case in which a code error is not detected in the first code error ...

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Номер записи: 59
25-01-2018 дата публикации

METHOD AND ARRANGEMENT FOR PILOT PATTERN BASED CONTROL SIGNALING IN MIMO SYSTEMS

Номер: US20180026761A1
Автор: Cheng Jung-Fu, Grant Stephen, Krasny Leonid, Molnar Karl J., Wang Yi-Pin Eric
Принадлежит:

A radio base station, user equipment (UE), and method of control signaling in wireless communication systems. Control information is transferred from a base station to at least one UE, via a plurality of common pilot channels. A set of unique pilot sequences is predefined, and the base station assigns specific pilot sequences from the set of pilot sequences to specific common pilot channels, forming a pilot sequence assignment pattern representing specific control information. The UE, having knowledge of the relations between pilot sequence assignment patterns and control information, interprets the received pilot sequence assignment pattern as specific control information. The method is particularly well suited for broadcast type control information. 127-. (canceled)28. A method for use in a user equipment of control signaling in a wireless communication network , wherein the user equipment transfers control information to at least one radio base station , and wherein a plurality of common pilot channels are available between the user equipment and the radio base station , wherein an improvement comprises:defining a set of unique pilot sequences; andassigning, by the user equipment, specific pilot sequences from the set of pilot sequences to specific common pilot channels, thereby forming a pilot sequence assignment pattern that represents specific control signaling information.29. The method according to claim 28 , wherein the assigning step includes the user equipment using a list of pre-determined relations between pilot sequence assignment patterns and control information to determine the pilot sequence assignment pattern;wherein the radio base station uses a corresponding list of relations between pilot sequence assignment patterns and control information to extract the control information transmitted from the user equipment.30. The method according to claim 29 , wherein the pre-determined relation is formed as a concordance list claim 29 , shared between all ...

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Номер записи: 60
28-01-2016 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SCHEDULING ASSIGNMENTS IN A COMMUNICATION SYSTEM

Номер: US20160029406A1
Автор: KIM Soeng Hun, Papasakellariou Aris, VAN LIESHOUT Gert-Jan
Принадлежит:

A method and apparatus are provided for receiving a Scheduling Assignment (SA) by a User Equipment (UE) in a communication system in which a base station transmits the SA including at least one Information Element (IE). The method includes receiving the SA; identifying if a first IE included in the received SA is set with a first predetermined value and at least one bit in a second IE included in the received SA is set with a second predetermined value; and performing an action corresponding to a semi-persistent scheduling, if the first IE included in the received SA is set with the first predetermined value and the at least one bit in the second IE included in the received SA is set with the second predetermined value. 1. A method , by a base station , for transmitting a scheduling assignment (SA) being a first scheduling type or a second scheduling type in a communication system , the method comprising:generating the SA including a plurality of information elements (IEs); andtransmitting the generated SA to a terminal,wherein each bit included in a first IE of the plurality of IEs and a predefined bit included in a second IE of the plurality of IEs are set with a first value, if the SA is the second scheduling type, andwherein the transmitted SA is validated as the second scheduling type by the terminal if each bit included in the first IE of the plurality of IEs and the predefined bit included in the second IE of the plurality of IEs are set with the first value.2. The method of claim 1 , further comprising:identifying the SA as the first scheduling type or the second scheduling type.3. The method of claim 1 , wherein the SA of the first scheduling type is for dynamic scheduling and the SA of the second scheduling type is for semi-persistent scheduling.4. The method of claim 1 , wherein the first IE of the plurality of IEs includes at least one of a cyclic shift indicator and a transmit power control (TPC) command claim 1 , andwherein the second IE of the ...

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Номер записи: 61
24-01-2019 дата публикации

WIRELESS TRANSCEIVER STATION THAT PERFORMS MULTI-PATH RECIPROCITY CALIBRATION WITH MULTIPLE REFERENCE ANTENNAS

Номер: US20190028155A1
Автор: Hofrichter Jörg, Löhning Michael, Ohlmer Eckhard
Принадлежит:

In a wireless transceiver station having M antennas, designate an antenna as a target reference antenna (TRA) and for each antenna m other than the TRA: define N distinct paths from antenna m to TRA through zero or more intermediate reference antennas, N is two or more, each distinct paths has a distinct associated set of one or more antenna pairs; for each antenna pair of the sets, estimate an effective forward and backward channel response by sending calibration pilots forth and back between the antenna pair and calculate a reciprocity coefficient for the antenna pair using the estimated channel responses; for each of the N distinct paths, calculate a reciprocity coefficient estimate using the reciprocity coefficients calculated for the set of antenna pairs associated with the path; and combine the N calculated reciprocity coefficient estimates to produce a final reciprocity coefficient estimate for antenna pair (m, target reference antenna). 1. A wireless transceiver station , comprising:M antennas connected to radio transceivers; and designate an antenna of the M antennas as a target reference antenna; and', define N distinct paths from the antenna m to the target reference antenna through zero or more intermediate reference antennas of the M antennas, wherein N for the antenna m is two or more;', 'wherein each of the N distinct paths has a distinct associated set of one or more antenna pairs of the M antennas;', estimate an effective forward and backward channel response by sending calibration pilots forth and back between the antenna pair; and', 'calculate a reciprocity coefficient for the antenna pair using the estimated channel responses;, 'for each antenna pair of the sets of antenna pairs, 'calculate a reciprocity coefficient estimate using the reciprocity coefficients calculated for the set of antenna pairs associated with the path; and', 'for each path of the N distinct paths, 'combine the N calculated reciprocity coefficient estimates to produce a final ...

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Номер записи: 62
10-02-2022 дата публикации

USER APPARATUS AND TRANSMISSION METHOD

Номер: US20220046469A1
Автор: Nagata Satoshi, Yasukawa Shinpei, Zhao Qun
Принадлежит: NTT DOCOMO, INC.

A user apparatus in a radio communication system supporting a D2D technology, includes a message generating unit configured to generate a message including a first segment and a second segment; and a message transmitting unit configured to transmit, multiple times, the message within a predetermined period, wherein information reported by a plurality of the first segments transmitted within the predetermined period by the message transmitting unit, is not changed within the predetermined period. 1. A user apparatus in a radio communication system supporting a D2D technology , the user apparatus comprising:a message generating unit configured to generate a message including a first segment and a second segment; anda message transmitting unit configured to transmit, multiple times, the message within a predetermined period, whereininformation reported by a plurality of the first segments transmitted within the predetermined period by the message transmitting unit, is not changed within the predetermined period.2. The user apparatus according to claim 1 , wherein the message transmitting unit transmitscontrol information including scheduling information of the second segment, or control information including scheduling information of the first segment and the second segment, andthe message.3. The user apparatus according to claim 1 , wherein the message transmitting unit transmits the first segment by using a control channel claim 1 , and transmits the second segment using a data channel.4. The user apparatus according to claim 1 , wherein the message transmitting unit transmits claim 1 , multiple times claim 1 , the message within the predetermined period claim 1 , by using a predetermined resource hopping pattern or a resource hopping pattern set from a base station in the radio communication system.5. The user apparatus according to claim 1 , wherein HARQ soft combining is executed at another user apparatus claim 1 , with respect to a plurality of the first segments ...

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Номер записи: 63
23-01-2020 дата публикации

Method and device for performing communication using orthogonal or non-orthogonal code multiple access scheme in wireless communication system

Номер: US20200028611A1
Автор: Hojae Lee, Sangrim LEE
Принадлежит: LG ELECTRONICS INC

Provided is a method and device for transmitting uplink data by using a non-orthogonal code multiple access scheme in a wireless communication system. Specifically, a terminal supporting multiple layers receives an NoMA MCS index from a base station. The NoMA MCS index is selected from an NoMA MCS table on the basis of the quality of an uplink channel. The NoMA MCS table is defined in advance as a table including the NoMA MCS index, the number of multiple layers, and a modulation order. The number of multiple layers is determined according to the NoMA MCS index. The terminal transmits the uplink data configured on the basis of the NoMA MCS index, via the multiple layers.

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Номер записи: 64
28-01-2021 дата публикации

HIGH-SPEED DATA TRANSMITTING/RECEIVING SYSTEM AND METHOD OF REMOVING SIMULTANEOUS SWITCHING NOISE AND INTER-SYMBOL INTERFERENCE

Номер: US20210028810A1
Автор: Yoo Chang Sik
Принадлежит: Industry-University Cooperation Foundation Hanyang University

Disclosed are high-speed data transmitting/receiving system and method capable of removing simultaneous switching noise and ISI at low cost and a small area. A transmitter used in the data transmitting/receiving system includes: a data mapping unit which maps 2-bit input data to one of codes, wherein the voltage level of a first signal line, the voltage level of a second signal line, and the voltage level of a third signal line are set in each of the codes; and a transmit driver which outputs data corresponding to the input data through the first signal line, the second signal line, and the third signal line having the voltage levels corresponding to the mapped code. Here, each of the voltage levels is ‘+1’, ‘0’ or ‘−1’, and the number of signal lines having the voltage level of ‘+1’ is the same as the number of signal lines having the voltage level of ‘−1’. 1. A transmitter used in a data transmitting/receiving system comprising:a data mapping unit configured to map 2-bit input data to one of codes, wherein a voltage level of a first signal line, a voltage level of a second signal line, and a voltage level of a third signal line are set in each of the codes; anda transmit driver configured to output the data corresponding to the input data through the first signal line, the second signal line, and the third signal line having the voltage levels corresponding to the mapped code,wherein each of the voltage levels is ‘+1’, ‘0’ or ‘−1’, and the number of signal lines having the voltage level of ‘+1’ is the same as the number of signal lines having the voltage level of ‘−1’.2. The transmitter used in the data transmitting/receiving system of claim 1 , wherein even when the input data is changed claim 1 , the voltage level of each of the signal lines is transited from ‘+1’ to ‘−1’ or not transited from ‘−1’ to ‘+1’ claim 1 , andthe voltage level is transited from ‘+1’ to ‘0’, transited from ‘−1’ to ‘0’, transited from ‘0’ to ‘+1’, or transited from ‘0’ to ‘−1’.3. The ...

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Номер записи: 65
29-01-2015 дата публикации

APPARATUS AND METHOD FOR REQUESTING RETRANSMISSION OF LOST PACKET BASED ON MPEG MEDIA TRANSPORT SYSTEM

Номер: US20150033091A1
Автор: HONG Jin-Woo, KIM Chang-Ki, Yoo Jeong-Ju
Принадлежит:

An apparatus for requesting retransmission of a lost packet, based on MPEG media transport (MTT) system, may include a packet receiver configured to receive an MPEG media transport (MMT) packet stream from an MMT sending entity; a message generator configured to generate an automatic repeat request (ARQ) feedback (AF) signaling message that includes a packet identifier (ID) that has been assigned to a lost packet; and a message sender configured to transmit the generated AF signaling message to the MMT sending entity. 1. An apparatus for requesting retransmission of lost packets based on a Moving Picture Experts Group (MPEG) media transport system , the apparatus comprising:a packet receiver configured to receive an MPEG media transport (MMT) packet stream from an MMT sending entity;a message generator configured to generate an automatic repeat request (ARQ) feedback (AF) signaling message that includes a packet identifier (ID) that has been assigned to a lost packet; anda message sender configured to transmit the generated AF signaling message to the MMT sending entity.2. The apparatus of claim 1 , wherein the AF signaling message includes different packet IDs.3. The apparatus of claim 1 , wherein the message generator generates an AF signaling message by including flow label that is contained in MMT packet header of an MMT packet stream in which packet loss has occurred.4. The apparatus of claim 3 , wherein the AF signaling message includes different packet IDs associated with the same flow label.5. A method for requesting retransmission of a lost packet claim 3 , based on an MPEG media transport system claim 3 , the method comprising:receiving an ARQ configuration (AC) message from an MPEG media transport (MTT) sending entity and setting an ARQ;receiving an MMT packet stream from the MMT sending entity;checking whether a packet is lost in the received MMT packet stream;in response to a lost packet being identified by the checking, generating an AF signaling ...

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Номер записи: 66
04-02-2016 дата публикации

SYSTEM AND METHOD OF REDUNDANCY BASED PACKET TRANSMISSION ERROR RECOVERY

Номер: US20160036560A1
Автор: Atti Venkatraman S., Krishnan Venkatesh, Rajendran Vivek, Sarkar Sandip, Subasingha Subasingha Shaminda
Принадлежит:

A device includes a receiver, a buffer, and an analyzer. The receiver is configured to receive packets that correspond to at least a subset of a sequence of packets and that include error correction data. The error correction data of a first packet of the packets includes a partial copy of a second packet. The buffer is configured to store the packets. The analyzer is configured to determine whether a first particular packet of the sequence is missing from the buffer, to determine whether a partial copy of the first particular packet is stored in the buffer as error correction data in a second particular packet, to update a value based at least in part on whether the first particular packet is missing from the buffer and the partial copy of the first particular packet is stored in the buffer, and to adjust an error recovery parameter based at least in part on the value. 1. A device comprising:a receiver configured to receive a plurality of packets, the plurality of packets corresponding to at least a subset of a sequence of packets, wherein the plurality of packets includes error correction data, and wherein the error correction data of a first packet of the plurality of packets includes a partial copy of a second packet of the plurality of packets;a buffer configured to store the plurality of packets; and determine whether a first particular packet of the sequence of packets is missing from the buffer;', 'determine whether a partial copy of the first particular packet is stored in the buffer as error correction data in a second particular packet;', 'determine a value based at least in part on whether the first particular packet is missing from the buffer and the partial copy of the first particular packet is stored in the buffer; and', 'adjust an error recovery parameter based at least in part on the value., 'an analyzer configured to2. The device of claim 1 , wherein the error recovery parameter includes a depth of the buffer claim 1 , a retransmission threshold ...

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Номер записи: 67
02-02-2017 дата публикации

ADAPTIVE USER EQUIPMENT IMPLEMENTATION IN DIVERSITY TUNE AWAY SCENARIOS

Номер: US20170034814A1
Автор: Jujaray Siva Kumar, Kinthada Venkata Madhusudan, Mali Nikhil, Sandhu Manjinder
Принадлежит:

A method for managing diversity tune away (DTA) on a mobile communication device includes: determining a start of the DTA from a first radio access technology (RAT) to a second RAT before the start of the DTA; transmitting a first aperiodic channel quality indicator/rank indicator (CQI/RI) report to a network on the first RAT prior to the start of the DTA; determining an end of the DTA before the end of the DTA; and transmitting a second aperiodic CQI/RI report to the network on the first RAT prior to the end of the DTA. 1. A method for managing diversity tune away (DTA) on a mobile communication device , the method comprising:determining a start of the DTA from a first radio access technology (RAT) to a second RAT before the start of the DTA;transmitting a first aperiodic channel quality indicator/rank indicator (CQI/RI) report to a network on the first RAT prior to the start of the DTA;determining an end of the DTA before the end of the DTA; andtransmitting a second aperiodic CQI/RI report to the network on the first RAT prior to the end of the DTA.2. The method of claim 1 , further comprising:transmitting periodic CQI/RI reports on the first RAT during the DTA.3. The method of claim 1 , wherein the first aperiodic CQI/RI report is transmitted to the network prior to the start of the DTA at a time equal to the network's adaptation rate to a reported change in RI.4. The method of claim 1 , wherein the second aperiodic CQI/RI report is transmitted to the network prior to the end of the DTA at a time equal to the network's adaptation rate to a reported change in RI.5. The method of claim 1 , wherein the first aperiodic CQI/RI report is initiated without receiving an aperiodic CQI/RI report request from the network.6. The method of claim 1 , wherein the second aperiodic CQI/RI report is initiated without receiving an aperiodic CQI/RI report request from the network.7. The method of claim 1 , wherein the first aperiodic CQI/RI report and the second aperiodic CQI/RI ...

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Номер записи: 68
01-02-2018 дата публикации

ADAPTING TRANSMISSIONS IN MULTI-TRANSMISSION TIME INTERVAL (TTI) SIDELINK COMMUNICATION

Номер: US20180035427A1
Автор: Gupta Piyush, Kudekar Shrinivas, Li Junyi
Принадлежит:

Aspects of the disclosure relate to a sidelink signal communication scheme that provides for rapid adaptation of the sidelink transmission based on feedback received during each transmission time interval (TTI). In this way, any lack of precision in interference measurements, or rapid changes in the amount of interference, which otherwise might cause a modulation and coding scheme (MCS) that was selected for the sidelink transmission to be unsuitable, may be adapted to improve the reliability of the transmission. Other aspects, embodiments, and features are also claimed and described. 1. A method of wireless communication operable at a transmitting device utilizing a sidelink signal , comprising:transmitting one or more transport blocks during a plurality of transmission time intervals (TTIs) utilizing sidelink-centric subframes and utilizing a given modulation and coding scheme (MCS);receiving feedback during each of the TTIs from a receiving device, the feedback comprising one or more of an acknowledgment/negative acknowledgment (ACK/NACK), channel quality information (CQI), or decoder state information for a decoder at the receiving device; andadapting the transmitting on a per-TTI basis in accordance with the received feedback.2. The method of claim 1 , wherein claim 1 , when the feedback comprises an ACK claim 1 , the adapting the transmitting comprises:performing early termination of the transmitting;if the transmitting device has one or more further transport blocks to send, transmitting the one or more further transport blocks during TTIs reserved for the sidelink signal; andif the transmitting device does not have further transport blocks to send, transmitting a signal to the receiving device explicitly releasing reserved resources for the sidelink signal.3. The method of claim 1 , wherein claim 1 , when the feedback comprises a CQI above a high threshold or below a low threshold claim 1 , the adapting the transmitting comprises:adapting the MCS in ...

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Номер записи: 69
17-02-2022 дата публикации

RESOURCE SCHEDULING METHOD AND APPARATUS

Номер: US20220053524A1
Автор: Chang Junren, YU Chang
Принадлежит:

Embodiments of this application relate to the field of communications technologies. The method includes: A terminal triggers a resource scheduling request when the terminal meets a first trigger condition, where the resource scheduling request is used to request an access network device to allocate an uplink resource or a sidelink resource to the terminal; and the first trigger condition includes: A working mode of the terminal or a working mode of a sidelink service of the terminal is switched from a first mode to a second mode, where the first mode is different from the second mode, and the first mode and the second mode each are one of the following modes: a scheduling mode and a scheduling and autonomous joint mode. 1. A resource scheduling method , wherein the method comprises:triggering, by a terminal, a resource scheduling request when the terminal meets a first trigger condition, wherein the resource scheduling request is used to request an access network device to allocate an uplink resource or a sidelink resource to the terminal; and the first trigger condition comprises: a working mode of the terminal or a working mode of a sidelink service of the terminal is switched from a first mode to a second mode, wherein the first mode is different from the second mode, and the first mode and the second mode each are one of the following modes: a scheduling mode and a scheduling and autonomous joint mode.2. The method according to claim 1 , wherein the first trigger condition further comprises: the terminal has no new data.3. The method according to claim 1 , wherein the first trigger condition further comprises: the terminal has new data corresponding to a first sidelink logical channel claim 1 , wherein a priority of the first sidelink logical channel is lower than or equal to a priority of a second sidelink logical channel claim 1 , and the second sidelink logical channel is a sidelink logical channel corresponding to first data in available data of the terminal ...

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Номер записи: 70
31-01-2019 дата публикации

Systems and Methods for Reliable Communication for Short Transmission Time Interval in Long Term Evolution Through Repetitions

Номер: US20190036644A1
Автор: Gustav WIKSTRÖM, Malik Wahaj ARSHAD, Niklas Andgart, Torsten DUDDA, Zhenhua Zou
Принадлежит: Individual

According to certain embodiments, a method by a wireless device is provided for reliable communication for short transmission time interval (TTI) through repetitions. The method includes receiving, from a network node, a configuration comprising a short TTI transmission schedule identifying a repetition factor. Based on the short TTI transmission schedule and the repetition factor, the wireless device searches for a plurality of repeated messages from the network node and combines the plurality of repeated messages.

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Номер записи: 71
31-01-2019 дата публикации

SOUNDING PROCEDURE INCLUDING UPLINK MULTIPLE-USER TRANSMISSION IN A HIGH EFFICIENCY WIRELESS LAN

Номер: US20190037556A1
Автор: Seok Yongho
Принадлежит:

The present disclosure relates to a sounding procedure including uplink multi-user transmission in a High Efficiency WLAN (HEW). According to one aspect of the present disclosure, a method for transmitting a response frame by a responding Station (STA) to a transmitting STA in a wireless local area network may be provided. The method may include receiving, from the transmitting STA, a trigger frame including information related to a Modulation and Coding Scheme (MCS) for the response frame, and transmitting, to the transmitting STA, the response frame according to an MCS determined based on the information related to the MCS for the response frame included in the trigger frame. When a type of the response frame corresponds to a Multiple-User (MU) type, a same MCS may be applied to the response frame by a plurality of STAs including the STA and at least one other STA. 1. A method of facilitating a sounding procedure in a wireless local area network , the method comprising:processing, by a responding station, a trigger frame received from a transmitting station, the trigger frame indicating a type of feedback requested;generating, by the responding station, a feedback report according to the type of feedback requested; andtransmitting, by the responding station, to the transmitting station, a response frame including the feedback report, wherein, when the type of feedback requested corresponds to a multiple-user (MU) type, the feedback report is simultaneously transmitted with multiple feedback reports from a plurality of stations.2. The method of claim 1 , wherein claim 1 , when the type of feedback requested corresponds to a single-user (SU) type claim 1 , the feedback report is transmitted only by the responding station.3. The method of claim 1 , wherein the feedback report comprises a compressed beamforming frame.4. The method of claim 3 , wherein the trigger frame includes a beamforming report poll frame claim 3 , and wherein the compressed beamforming frame is ...

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Номер записи: 72
04-02-2021 дата публикации

MINIMIZING BLOCK ERROR RATE (BLER) ASSOCIATED WITH A BEAM SWITCH

Номер: US20210036800A1
Автор: BERLINER Ran, GUTMAN Igor, KUTZ Gideon Shlomo, LANDIS Shay
Принадлежит:

Aspects of the disclosure relate to minimizing the block error rate (BLER) experienced by a user equipment (UE) upon a downlink beam switch at the base station. The base station may mitigate the link adaptation convergence transient upon performing a beam switch by modifying the modulation and coding scheme (MCS) according to a difference in reference signal received power (RSRP) between the old beam and the new beam. The base station may further adjust the MCS utilizing an outer-loop link adaptation process or channel state feedback (CSF) provided by the UE after the beam switch. Other aspects, features, and embodiments are also claimed and described. 1. A method for wireless communication at a base station in a wireless communication network , the method comprising:communicating with a user equipment (UE) utilizing a first downlink beam of a plurality of downlink beams;switching from the first downlink beam to a second downlink beam of the plurality of downlink beams to communicate with the UE based on a difference between a first reference signal received power (RSRP) associated with the first downlink beam and a second RSRP associated with the second downlink beam; andmodifying a modulation and coding scheme (MCS) utilized for communication with the UE based on the difference between the first RSRP and the second RSRP.2. The method of claim 1 , further comprising:receiving at least one beam measurement report from the UE, wherein the first RSRP and the second RSRP are each included in one of the at least one beam measurement report; andcalculating the difference between the first RSRP and the second RSRP based on the at least one beam measurement report.3. The method of claim 1 , further comprising:estimating the difference between the first RSRP and the second RSRP based on respective signal quality measurements of a first uplink beam corresponding to the first downlink beam and a second uplink beam corresponding to the second downlink beam.4. The method of ...

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Номер записи: 73
11-02-2016 дата публикации

METHOD AND DEVICE FOR RECEIVING ACK/NACK IN WIRELESS COMMUNICATION SYSTEM

Номер: US20160043831A1
Автор: Ahn Joonkui, Kim Hakseong, Seo Dongyoun, Seo Hanbyul, YI Yunjung
Принадлежит: LG ELECTRONICS INC.

Provided are a method by which a terminal receives ACK/NACK in a wireless communication system and the terminal using the method. The method comprises: transmitting data through a PUSCH; and receiving ACK/NACK for the data, wherein the ACK/NACK is received through downlink control information (DCI). 1. A method of receiving , by a terminal , acknowledgement/not-acknowledgement (ACK/NACK) in a wireless communication system , the method comprising:transmitting data through a physical uplink shared channel (PUSCH), andreceiving ACK/NACK for the data,wherein the ACK/NACK is received through downlink control information (DCI).2. The method of claim 1 , wherein the DCI comprises a hybrid automatic repeat request indicator (HI) bit field in which a plurality of ACK/NACKs to be transmitted to a plurality of terminals is able to be multiplexed and a cyclic redundancy check (CRC) field.3. The method of claim 2 , wherein the ACK/NACK for the terminal are placed in a specific bit of the HI bit field.4. The method of claim 3 , wherein the specific bit is determined based on a minimum resource block index forming the PUSCH and a demodulation reference signal (DMRS) cyclic shift value included in an uplink grant which schedules the PUSCH.5. The method of claim 2 , wherein the CRC field comprises CRC scrambled with a radio network temporary indicator (RNTI).6. The method of claim 5 , wherein a location of the ACK/NACK within the DCI is identified based on an index indicative of the RNTI and an index indicative of the specific bit in the HI bit field.7. The method of claim 1 , wherein if the data comprises two codewords claim 1 , two ACK/NACKs for the two codewords are received within identical DCI.8. A terminal claim 1 , comprising:an RF unit transmitting and receiving radio signals; anda processor connected to the RF unit,wherein the processor sends data through a physical uplink shared channel (PUSCH) and receives ACK/NACK for the data, andthe ACK/NACK is received through ...

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Номер записи: 74
09-02-2017 дата публикации

RE-TRANSMISSION CONTROL METHOD AND COMMUNICATION DEVICE

Номер: US20170041101A1
Автор: Liu Chia-Hao, WU DA-CHENG
Принадлежит:

A re-transmission method is provided. The method includes: generating, at a transmitting party, a packet; adding, at the transmitting party, parity check bits to the packet to form a new packet; transmitting, at the transmitting party, the new packet to a receiving party; determining, at the transmitting party, whether an ARQ feedback is received, wherein the ARQ feedback indicates which half part of the packet is found erroneous at the receiving party if the packet is found erroneous at the receiving party; determining, at the transmitting party, which half part of the packet is found erroneous based on the ARQ feedback if the ARQ feedback is received; and re-transmitting, at the transmitting party, the half part of the packet which is found erroneous at the receiving party. 1. A re-transmission method , comprising:generating, at a transmitting party, a packet;adding, at the transmitting party, parity check bits to the packet to form a new packet;transmitting, at the transmitting party, the new packet to a receiving party;determining, at the transmitting party, whether an Automatic Repeat request (ARQ) feedback is received, wherein the ARQ feedback indicates which half part of the packet is found erroneous at the receiving party when the packet is found erroneous at the receiving party;determining, at the transmitting party, which half part of the packet is found erroneous based on the ARQ feedback; andre-transmitting, at the transmitting party, the half part of the packet which is found erroneous.2. The method according to claim 1 , further comprising:determining, at the transmitting party, whether the half part that is found erroneous can be fragmented into two half parts based on an length of the half part;generating, at the transmitting party, a sub-packet corresponding to the half part which is found erroneous;adding, at the transmitting party, parity check bits to the sub-packet to be a new sub-packet if the half part can be fragmented into two half parts; ...

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Номер записи: 75
09-02-2017 дата публикации

Methods of Enabling Multiuser Superposition Transmission

Номер: US20170041906A1
Автор: HWANG Chien-Hwa, Liao Pei-Kai, Liao Yi-Ju, TSAI LUNG-SHENG
Принадлежит:

Methods of enabling multiuser superposition transmission (MUST) in LTE systems are proposed. MUST operation allows simultaneous transmission for multiple co-channel users on the same time-frequency resources. A higher-layer signaling is used for configuring a UE to enable MUST in each transmission mode (TM). MUST is a sub-TM of each TM. When a UE is configured by higher layer to enable MUST, the UE will monitor new DCI formats supported by the configured TM with new fields carrying scheduling information of another co-channel UE. Dynamic switching between MUST and non-MUST operation is allowed. Mixed transmission schemes and precoders among co-channel UEs are also supported. 1. A method , comprising:receiving a higher-layer signaling from a base station by a user equipment (UE) in a mobile communication network to determine whether multiuser superposition transmission (MUST) is enabled;detecting a physical-layer control signaling related to data transmission based on the higher-layer signaling, wherein the physical-layer control signaling is carried by a MUST-supporting downlink control information (DCI) format for a configured transmission mode if MUST is enabled, otherwise the physical-layer control signaling is carried by a legacy DCI format for the configured transmission mode if MUST is not enabled;decoding the MUST-supporting DCI format to determine scheduling information of the UE and MUST-related information of a co-channel UE; andapplying interference cancellation of a superposed interference signal from the co-channel UE based on the MUST-related information.2. The method of claim 1 , wherein the MUST-related information comprises power allocation information among the UE and the co-channel UE.3. The method of claim 1 , wherein the MUST-related information comprises an indication of a modulation order or a modulation and coding scheme (MCS) used by the data transmission intended for the co-channel UE.4. The method of claim 1 , wherein the MUST-related ...

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Номер записи: 76
09-02-2017 дата публикации

METHOD FOR SETTING MODULATION AND CODING SCHEME IN WIRELESS RAN SYSTEM AND APPARATUS SUPPORTING THE SAME

Номер: US20170041913A1
Автор: Seok Yong Ho
Принадлежит: LG ELECTRONICS INC.

A method and a transmitting station for transmitting data by using a multi-user multiple input multiple output (MU-MIMO) in a wireless local area network system are discussed. The method according to an embodiment includes transmitting a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including a bundled interface field, a modulation and coding scheme (MCS) index field and a data field. The bundled interface field indicates a number of at least one spatial stream allocated to each of a plurality of receiving stations and a total number of spatial streams allocated to the plurality of receiving stations. The MCS index field indicates a same MCS index used for modulating and coding the at least one spatial stream. The data field is modulated and coded by an MCS scheme indicated by the MCS index field and transmitted via the plurality of spatial streams indicated by the bundled interface field. 1. A method of transmitting data by a transmitting station by using a multi-user multiple input multiple output (MU-MIMO) in a wireless local area network system , the method comprising:generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU), the PPDU including a bundled interface field, a modulation and coding scheme (MCS) index field and a data field; andtransmitting the PPDU to a plurality of receiving stations,wherein the bundled interface field indicates a number of at least one spatial stream allocated to each of the plurality of receiving stations and a total number of spatial streams allocated to the plurality of receiving stations,wherein the MCS index field indicates a same MCS index used for modulating and coding the at least one spatial stream allocated to each of the plurality of receiving stations, andwherein the data field is modulated and coded by an MCS scheme indicated by the MCS index field and transmitted via the plurality of spatial streams indicated by the bundled interface field.2. The method of claim 1 , ...

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Номер записи: 77
24-02-2022 дата публикации

Communication apparatus, communication method thereof, information processing apparatus, control method thereof, and non-transitory computer-readable storage medium

Номер: US20220060275A1
Автор: Yuki Tsujimaru
Принадлежит: Canon Inc

A communication apparatus that transmits to or receives from a communication partner apparatus, a radio frame compliant with an IEEE802.11 standard series is provided. A NOMA (Non-Orthogonal Multiple Access) capability of the apparatus that has transmitted the radio frame is indicated in a MAC (Medium Access Control) frame of the radio frame.

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Номер записи: 78
01-05-2014 дата публикации

Method, an Apparatus and a Network Element for Dynamical TDD Configuration

Номер: US20140122957A1
Автор: Charbit Gilles, Gao Chunyan, Han Jing, Wang Haiming
Принадлежит:

A method, an apparatus for wireless communication and a network element for handling the retransmission of a failed packet during the TDD configuration change. The method comprises receiving at least one failed packet in a first TDD configuration; receiving information to change from the first TDD configuration to a second TDD configuration; sending a repeat request for said at least one failed packet; and receiving a retransmission of the failed packets of the first TDD configuration in the second TDD configuration. 1. A method , comprising:receiving at least one failed packet in a first time division duplex (TDD) configuration;receiving information to change from the first TDD configuration to a second TDD configuration;sending a repeat request for said at least one failed packet; andreceiving a retransmission of the failed packets of the first TDD configuration in the second TDD configuration.2. A method according to claim 1 , comprising flushing a hybrid automatic repeat request (HARQ) buffer after receiving information to change from the first TDD configuration to the second TDD configuration and receiving the retransmission of the failed packets of the first TDD configuration in the second TDD configuration as new packets.3. A method according to claim 2 , comprising using a specified number of HARQ processors and downlink association set index in the second TDD configuration claim 2 , wherein the downlink is configured for asynchronous HARQ.4. A method according to claim 2 , comprising using a specified number of HARQ processors and implicit timing between physical uplink shared channel (PUSCH) and physical HARQ indicator channel/physical downlink control channel (PHICH/PDCCH) in the second TDD configuration claim 2 , wherein the uplink is configured for synchronous HARQ.5. A method according to claim 1 , comprising a network element indicating to an apparatus for wireless communication a downlink process index claim 1 , setting a new data (NDI) value to ...

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Номер записи: 79
24-02-2022 дата публикации

SIGNALLING FOR REPETITION

Номер: US20220061067A1
Автор: Andersson Mattias, Andgart Niklas, Baldemair Robert, BLANKENSHIP Yufei, Falahati Sorour, Fröberg Olsson Jonas, Kittichokechai Kittipong
Принадлежит: Teiefonaktiebolagei LM Ericsson (pub!)

In one aspect, there is a method performed by a wireless device, WD. The method includes the WD receiving a control message, the control message comprising an indication of an index value. The method further includes the WD obtaining, using the index value, a set of parameters from time domain resource allocation, TDRA, configuration information, the set of parameters comprising an aggregation factor. 1. A method performed by a wireless device for repetition signalling , the method comprising:receiving a control message, the control message comprising an indication of an index value; andobtaining, using the index value, a set of parameters from time domain resource allocation (TDRA) configuration information, the set of parameters comprising an aggregation factor.2. The method of claim 1 , wherein the TDRA configuration information comprises at least one of a physical uplinked shared channel (PUSCH) TDRA configuration or a physical downlink shared channel (PDSCH) TDRA configuration claim 1 , and the set of parameters further comprise a slot offset claim 1 , a mapping type claim 1 , and at least one of: (i) a start symbol and an allocation length or (ii) a start and length indicator variable.3. The method of claim 1 , wherein the set of parameters further comprises an indication to use at least one of slot aggregation or back-to-back repetition of transmissions in accordance with the aggregation factor.4. The method of claim 1 , further comprising:determining that using back-to-back repetition with the aggregation factor would result in a first transmission occupying a first slot and at least one transmission at least partly occupying a second slot different than the first slot; and,as a result of the determining: (i) determining not to transmit the at least one transmission at least partly occupying the second slot, (ii) shortening the at least one transmission at least partly occupying the second slot such that it no longer at least partly occupies the second slot, ...

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Номер записи: 80
18-02-2021 дата публикации

DATA COMMUNICATION PROCESSING METHOD AND DEVICE

Номер: US20210050930A1
Автор: BIAN Luanjian, Li Liguang, Wu Hao, Xin Yu, Xu Jin, Xu Jun, Zuo Zhisong
Принадлежит:

Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Nof information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Nof the information bits to obtain the quantized intermediate number N′; determining a transport block size (TBS) according to the quantized intermediate number N′. 1. A data communication processing method , applied to a communication device , comprising:acquiring a modulation order and a target code rate;{'sub': 'info', 'calculating an intermediate number Nof information bits according to a total number of resource elements, the modulation order and the target code rate; and'}{'sub': info', 'info, 'quantizing the intermediate number Nof the information bits to obtain a quantized intermediate number N′; and'}{'sub': 'info', 'determining a transport block size, TBS, according to the quantized intermediate number N′.'}2. The method of claim 1 , wherein the acquiring the modulation order and the target code rate comprises:receiving control information from a wireless communication node, wherein the control information comprises: modulation and coding scheme, MCS, field information; anddetermining the modulation order and the target code rate from an MCS table according to the MCS field information.3. The method of claim 2 , further comprising:determining the MCS table from a plurality of MCS tables according to higher layer signaling.4. The method of claim 3 , wherein the plurality of MCS tables at least comprises one MCS table claim 3 , wherein the one MCS table comprises at least the following fields: an MCS index claim 3 , a modulation order claim 3 , and a target code rate;wherein a maximum target code rate among all MCSs having a modulation order of 1 in the one MCS table is equal to a sum of a code rate of a mother code and Δa, ...

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Номер записи: 81
18-02-2021 дата публикации

FLEXIBLE IMPLICIT MODULATION AND CODING SCHEME INDICATION

Номер: US20210050938A1
Автор: ABDELGHAFFAR Muhammad Sayed Khairy, Manolakos Alexandras, Mukkavilli Krishna Kiran, SARKIS Gabi, Soriaga Joseph Binamira
Принадлежит:

Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a base station transmitting a modulation and coding scheme index corresponding to a modulation and coding scheme table to a user equipment (UE). The modulation and coding scheme index may be applied to encoding or decoding a transport block. The modulation and coding scheme may be associated with at least two modulation orders or a differential indication according to a modulation and coding scheme table. To determine which of the modulation orders for processing the transport block, the UE and the base station may use a prior modulation order associated with a prior transmission of the transport block. The UE may process the transport block by encoding or decoding the transport block based at least in part on the determined modulation order. 1. A method for wireless communication at a user equipment (UE) , comprising:receiving, from a base station, an indication of a modulation and coding scheme index to be applied to encoding or decoding of a transport block, wherein the modulation and coding scheme index is associated with at least two modulation orders;determining a modulation order of the at least two modulation orders based at least in part on a prior modulation order associated with a prior transmission of the transport block; andprocessing the transport block by encoding or decoding the transport block based at least in part on the determined modulation order.2. The method of claim 1 , wherein determining the modulation order further comprises:comparing the prior modulation order to a modulation order threshold; anddetermining the modulation order based at least in part on the comparing.3. The method of claim 1 , further comprising:determining the prior modulation order in accordance with a control signal scheduling the prior transmission of the transport block, wherein the prior transmission of the transport block is a most recent ...

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Номер записи: 82
06-02-2020 дата публикации

Scheduling Request Handling with Multiple Configured TTIs

Номер: US20200045718A1
Автор: Almquist Gustav, DUDDA Torsten, Falconetti Laetitia, Sundberg Mårten
Принадлежит:

Techniques for improved scheduling request (SR) operation using one or more short transmission time intervals (sTTIs) () are presented to ensure both short latency and improved wireless coverage for user equipment (UE) (). In particular, a method () performed by a UE () for managing SR transmissions to a network node () is presented. The method can include determining () a value indicative of network coverage conditions, and based on the value indicative of network coverage conditions, determining (1004) a transmission duration () for transmitting one or more SRs (). In addition, the example method can include transmitting () the one or more SRs () to the network node () using the determined transmission duration (). Related devices, computer programs, processor/memory combinations, and systems are likewise described. 125-. (canceled)26. A method , performed by a user equipment (UE) , for managing scheduling request (SR) transmissions to a network node , the method comprising:determining a value indicative of network coverage conditions;determining a transmission duration for transmitting an SR based on the determined value; andtransmitting the SR to the network node using the determined transmission duration.27. The method of claim 26 , wherein the determined transmission duration comprises one of multiple different transmission durations with which the UE is configured.28. The method of claim 26 , wherein the transmitting the SR to the network node comprises transmitting the SR to the network node a particular number of times.29. The method of claim 28 , further comprising:determining that no response has been received from the network node in response to any of the particular number of times the SR was transmitted;determining a longer transmission duration for transmitting an SR based on determining that no response has been received; andtransmitting the SR to the network node using the longer transmission duration.30. The method of claim 28 , wherein the ...

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Номер записи: 83
16-02-2017 дата публикации

COMMUNICATION CONTROL APPARATUS, COMMUNICATION CONTROL METHOD, AND COMPUTER-READABLE NON-TRANSITORY RECORDING MEDIUM

Номер: US20170048025A1
Автор: Baduge Thilmee
Принадлежит: Panasonic Intellectual Property Management Co., Ltd.

A communication control apparatus is provided for controlling recovery of data loss during data communication from a first communication device to a second communication device, which includes an obtaining section configured to obtain a temporal change in a communication load between the first communication device and the second communication device. The communication control apparatus also includes a change section configured to dynamically change a permitted time and an interval between transmissions on the basis of the temporal change in the communication load, the permitted time being a time that is permitted to be used by the second communication device for recovery of data loss and the interval between transmissions being an interval between transmissions of a retransmission request message. The communication control apparatus further includes a retransmission control section configured to control transmission of the retransmission request message in accordance with the interval between transmissions. 1. A communication control apparatus for controlling recovery of data loss during data communication from a first communication device to a second communication device , the communication control apparatus comprising:an obtaining section configured to obtain a temporal change in a communication load between the first communication device and the second communication device;a change section configured to dynamically change a permitted time and an interval between transmissions on the basis of the temporal change in the communication load, the permitted time being a time that is permitted to be used by the second communication device for recovery of data loss, the interval between transmissions being an interval between transmissions of a retransmission request message that requests retransmission of data identical to lost data in a case where the retransmission request message is repeatedly transmitted from the second communication device to the first ...

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Номер записи: 84
08-05-2014 дата публикации

LINK ADAPTATION FEEDBACK METHOD AND TRANSMITTING DEVICE

Номер: US20140126658A1
Автор: Li Yunbo, Luo Yi, YANG Xun
Принадлежит: Huawei Technologies Co., Ltd.

Embodiments of the present disclosure provide a link adaptation feedback method, including: receiving, by a transmitting device, a link adaptation feedback frame sent by a communication peer end, where the link adaptation feedback frame includes a modulation and coding scheme feedback request sequence identifier (MSI), where the MSI is configured to indicate space-time block coding type information; determining, according to the space-time block coding type indication information, use information about use of space-time block coding by a data frame related to the link adaptation feedback frame, and selecting, according to the use information, a space-time stream, modulation and coding scheme used when the transmitting device sends a data frame. 1. A link adaptation feedback method , comprising:receiving, by a transmitting device, a link adaptation feedback frame sent by a communication peer end device, wherein the link adaptation feedback frame comprises a modulation and coding scheme feedback request sequence identifier (MSI), wherein the MSI is configured to indicate space-time block coding information;determining, by the transmitting device, according to the space-time block coding information, use information about use of space-time block coding by a data frame related to the link adaptation feedback frame, andselecting, by the transmitting device, according to the use information, a space-time stream, modulation and coding scheme used when the transmitting device sends a data frame.2. The link adaptation feedback method according to claim 1 , wherein the MSI comprises three bits claim 1 , and one bit is configured to indicate the space-time block coding information.3. The link adaptation feedback method according to claim 2 , wherein:if the value of the one bit configured to indicate the space-time block coding information is set to 1, the one bit indicates that the data frame related to the link adaptation feedback frame uses the space-time block coding; orif ...

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Номер записи: 85
16-02-2017 дата публикации

HARQ ADAPTATION FOR ACQUISITION OF NEIGHBOR CELL SYSTEM INFORMATION

Номер: US20170048762A1
Автор: Kuchibhotla Ravi, Narasimha Murali
Принадлежит:

A method in a mobile station including receiving an order from a serving cell for system information acquisition of a neighbor cell, wherein the order includes at least a physical cell identifier and a time limit for acquisition of the system information of the neighbor cell, acquiring the system information of the neighbor cell within the time limit for the acquisition of the system information, and reporting at least a part of the acquired system information to the serving cell. 1. A method in a mobile station for acquiring neighbor cell system information , the method comprising:receiving, at the mobile station, an order from a serving cell for system information acquisition of a neighbor cell,the order for system information acquisition including at least a physical cell identifier of the neighbor cell and a time limit for acquisition of the system information of the neighbor cell;acquiring, at the mobile station, the system information of the neighbor cell within the time limit for the acquisition of the system information, andreporting, from the mobile station, at least a part of the acquired system information to the serving cell.2. The method according to further comprising operating the mobile station at a reduced data rate until the expiration of the time limit for the acquisition of the system information.3. The method according to claim 1 , wherein receiving the order for system information acquisition of the neighbor cell includes receiving an order to acquire an identifier of a neighbor cell from the system information transmitted by the neighbor cell. The present application is a divisional of U.S. patent application Ser. No. 14/926,191, filed on Oct. 29, 2015, which is a divisional of U.S. patent application Ser. No. 12/792,194, filed on Jun. 2, 2010, now issued as U.S. Pat. No. 9,204,347, issued on De. 1, 2015, which claims the benefit under 35 USC 119(e) to U.S. Provisional Application No. 61/219,547 filed on Jun. 23, 2009, the disclosures of which ...

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Номер записи: 86
15-02-2018 дата публикации

TRANSMISSION APPARATUS AND TRANSMISSION METHOD, RECEPTION APPARATUS AND RECEPTION METHOD, TRANSMISSION SYSTEM, AND PROGRAM

Номер: US20180048924A1
Автор: Yokokawa Takashi
Принадлежит:

The present technology relates to a transmission apparatus and a transmission method, a reception apparatus and a reception method, a transmission system, and a program by which the communication efficiency can be enhanced and power saving can be realized in transmitting and receiving additional data instead of audio data in addition to visible image data in a DisplayPort (trademark) standard. 1. A transmission apparatus that transmits visible image data formed of effective pixel data of an image pickup apparatus by using a format for transmitting to a display , the transmission apparatus comprisinga transmitter that transmits audio data in addition to the visible image data, whereinin the format, an error correction code having a predetermined amount is set with respect to the audio data having a predetermined amount, andthe transmitter transmits, transmitting additional data different from the audio data instead of the audio data in addition to the visible image data, the additional data and the visible image data by using the format from which a part of the error correction code is omitted.2. The transmission apparatus according to claim 1 , whereinthe transmitter inquires a transmission destination about whether or not the additional data can be transmitted with the part of the error correction code included in the format being omitted, and transmits the additional data in addition to the visible image data by using the format from which the part of the error correction code is omitted if the additional data can be transmitted with the part of the error correction code included in the format being omitted.3. The transmission apparatus according to claim 1 , whereinthe transmitter uses the format for transmitting to the display and packetizes and transmits the phase detection image data in the image pickup apparatus as the additional data.4. The transmission apparatus according to claim 3 , whereinthe format for transmitting to the display is a format defined by ...

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Номер записи: 87
26-02-2015 дата публикации

TCP Extended Fast Recovery and Segment Timing

Номер: US20150055482A1
Автор: Dooley Andy, Larson Isaac, Patel Maulik
Принадлежит:

When in Fast Recovery, Extended Fast Recovery operation starts a timer on the retransmission of each packet. The time expires in one adjusted round trip time. If there has not been an acknowledgement for the retransmitted packet and the Extended Fast Recovery timer expires, it is assumed that the retransmitted packet was lost and must be retransmitted again. Extended Fast Recovery operation keeps retransmitting the packet, once every adjusted round trip time, until an acknowledgement is received or the slow recovery timer expires. Segment Timing is an addition to Extended Fast Recovery where every sent packet is timed separately from the time of first transmission, not just retransmitted packets. 1. A transmission control protocol (TCP) transmitter comprising:a port for receiving and transmitting TCP packets;a timer configured to time an adjusted round trip time for a transmitted packet; andretransmit logic coupled to said timer and said port for providing a packet for retransmission if said timer expires before an ACK is received for the packet.2. The TCP transmitter of claim 1 , wherein said timer operates only for retransmitted packets.3. The TCP transmitter of claim 2 , wherein said timer operation commences after the TCP transmitter starts fast recovery operation.4. The TCP transmitter of claim 2 , wherein said timer operation commences after the TCP transmitter receives three DUP ACKs for the packet.5. The TCP transmitter of claim 1 , wherein said timer operates for all transmitted and retransmitted packets.6. A method comprising:receiving and transmitting transmission control protocol (TCP) packets;timing an adjusted round trip time for a transmitted packet; andproviding a packet for retransmission if the adjusted round trip time expires before an ACK is received for the packet.7. The method of claim 6 , wherein said timing operates only for retransmitted packets.8. The method of claim 7 , wherein said timing operation commences after the start of fast ...

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Номер записи: 88
03-03-2022 дата публикации

COMMUNICATION TRANSMITTER FOR RETRANSMITTING MEDIUM ACCESS CONTROL (MAC) PROTOCOL DATA UNIT (MPDU)

Номер: US20220069949A1
Автор: BASSON Nadav, BEN-ARIE Yaron, EZRI Doron, Melzer Ezer, REICH Mor, Shilo Shimon
Принадлежит:

A communication transmitter retransmits a Medium Access Control (MAC) Protocol Data unit (MPDU) to a communication receiver over a communication channel using a Hybrid Automatic Repeat reQuest (HARQ) retransmission scheme. The MPDU includes a plurality of information bits. The communication transmitter includes a processor configured to determine the MPDU to be retransmitted based on a Block ACK frame received from the communication receiver, the Block ACK frame indicating previously correctly decoded MPDUs at the communication receiver, and to generate a bit sequence to be transmitted to the communication receiver, wherein the bit sequence comprises the plurality of information bits. The communication transmitter further comprises a communication interface configured to transmit the bit sequence to the communication receiver for retransmitting the MPDU to the communication receiver.

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Номер записи: 89
14-02-2019 дата публикации

METHOD AND APPARATUS FOR DETERMINING A VALUE FOR A TRANSMISSION PARAMETER

Номер: US20190052396A1
Автор: Skärby Christian
Принадлежит: Telefonaktiebolaget lM Ericsson (publ)

A method performed by a first network node for determining a value for a transmission parameter is provided. The first network node is operable in a communication network. The first network node performs a plurality of data transmissions to a second network node in the communication network. Each data transmission is performed with a value of the transmission parameter. The first network node receives at least two negative decoding feedbacks on the plurality of data transmissions from the second network node. The first network node computes a variance based on at least two values of the transmission parameter which resulted in the at least two negative decoding feedbacks. The first network node determines another value for the transmission parameter based on the variance. The other value of the transmission parameter is for an upcoming data transmission to the second network node. 1. A method performed by a first network node for determining a value for a transmission parameter , the first network node is operable in a communication network , the method comprising:performing a plurality of data transmissions to a second network node in the communication network, wherein each data transmission is performed with a value of the transmission parameter;receiving, from the second network node, at least two negative decoding feedbacks on the plurality of data transmissions;computing a variance based on at least two values of the transmission parameter which resulted in the at least two negative decoding feedbacks; anddetermining another value for the transmission parameter based on the variance, which other value of the transmission parameter is for an upcoming data transmission to the second network node.2. The method according to claim 1 , wherein determining the other value for the transmission parameter based on the variance comprises:determining an offset for a channel quality estimate based on the variance, in which channel the plurality of data transmissions was ...

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Номер записи: 90
14-02-2019 дата публикации

Transmission For Ultra-Reliable And Low-Latency Communications In Mobile Communications

Номер: US20190052406A1
Автор: TSAI LUNG-SHENG, YANG Weidong
Принадлежит:

Various solutions for blind retransmission for ultra-reliable and low-latency communications (URLLC) with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a physical downlink control channel (PDCCH). The apparatus may receive a plurality of physical downlink shared channels (PDSCHs) according to the PDCCH. The apparatus may decode the plurality of PDSCHs according to the PDCCH. The PDCCH may schedule the plurality of PDSCHs. 1. A method , comprising:receiving, by a processor of an apparatus, a physical downlink control channel (PDCCH);receiving, by the processor, a plurality of physical downlink shared channels (PDSCHs) according to the PDCCH; anddecoding, by the processor, the plurality of PDSCHs according to the PDCCH,wherein the PDCCH schedules the plurality of PDSCHs.2. The method of claim 1 , wherein each of the PDSCHs comprises a respective version of encoded bits corresponding to a different redundancy version (RV).3. The method of claim 1 , wherein each of the PDSCHs comprises encoded bits corresponding to an identical redundancy version (RV).4. The method of claim 1 , wherein the PDCCH indicates a plurality of redundancy versions (RVs) corresponding to the plurality of PDSCHs respectively.5. The method of claim 1 , wherein the PDCCH indicates redundancy versions (RVs) corresponding to none claim 1 , one or more than one of the plurality of PDSCHs claim 1 , and wherein the RVs for a remaining portion of the plurality of PDSCHs without explicit RV indication are determined by a predetermined rule and the indicated RVs.6. The method of claim 1 , wherein the PDCCH indicates resource allocations (RAs) corresponding to none claim 1 , one or more than one of the plurality of PDSCHs claim 1 , and wherein the RAs for a remaining portion of the plurality of PDSCHs without explicit RA indication are determined by a predetermined rule and the indicated RAs.7. A method claim 1 , comprising:generating, by a ...

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Номер записи: 91
25-02-2021 дата публикации

Transmission Based on Uplink Grant Indicating Radio Resources in Consecutive Time Intervals

Номер: US20210058184A1
Автор: Dinan Esmael
Принадлежит: Ofinno, LLC

A wireless device receives an uplink grant indicating radio resources in m consecutive subframes 0 to m−1, where m is two or more. For each subframe of the m consecutive subframes store, a respective packet is stored. In response to a determination that the wireless device cannot access a channel for a transmission in subframe k, k∈{0, . . . , m−2}: the respective packet stored for subframe k is not transmitted; and a listen-before-talk procedure indicating that the channel is clear in subframe k+1 is performed. The respective packet stored for each subframe of subframes k+1 to m−1 are transmitted via subframes k+1 to m−1. 1. A wireless device comprising:one or more processors; and [{'b': '0', 'receive an uplink grant indicating radio resources in m consecutive subframes to m−1, where in is two or more;'}, 'store, for each subframe of the m consecutive subframes, a respective packet;', do not transmit the respective packet stored for subframe k; and', 'perform a listen-before-talk procedure indicating that the channel is clear in subframe k+1; and, 'in response to a determination that the wireless device cannot access a channel for a transmission in subframe k, k∈{0, . . . , m−2}, 'transmit, via subframes k+1 to m−1, the respective packet stored for each subframe of subframes k+1 to m−1., 'memory storing instructions that, when executed by the one or more processors, cause the wireless device to2. The wireless device of claim 1 , wherein the uplink grant is a downlink control information (DCI).3. The wireless device of claim 1 , wherein the uplink grant comprises a field indicating m.4. The wireless device of claim 1 , wherein:the uplink grant comprises one or more fields indicating one or more listen-before-talk configurations;the one or more listen-before-talk configurations indicate at least one of a listen-before-talk type or a listen-before-talk priority class; andthe listen-before-talk procedure is performed on the channel according to the one or more listen- ...

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Номер записи: 92
25-02-2021 дата публикации

METHOD OF VARIABLE-BITRATE COMMUNICATION WITH SELECTION OF A TRANSMISSION INTERFACE AND CORRESPONDING DEVICE

Номер: US20210058185A1
Автор: Al Bechlawi Carole, Siaud Isabelle, Ulmer Moll Anne-Marie
Принадлежит:

A method for selecting a mode of transmission for a first telecommunication entity of a communication signal to a second telecommunication entity, each mode determining a physical bitrate. The method includes: determining for a given mode a first metric corrected by a second metric, the first metric measuring at a given distance d a relative degradation by the medium for transmitting the signal resulting from a relative degradation linked to a multipath effect at the link level with respect to a Gaussian channel and from a relative degradation linked to an effect of attenuation of the medium with respect to a model of attenuation in free space, the second metric determining a ratio between a mean bitrate and the physical bitrate for this mode of transmission; comparing for various modes of transmission, values of the first metric corrected to select at least one mode of transmission for distance d. 1. A method for selecting a transmission mode , for a first telecommunication entity comprising various modes (MODE) of transmission , of a communication signal intended for a second telecommunication entity , each mode (MODE) determining a physical bitrate (D) in bits/s , wherein the method comprises the following acts performed by the first telecommunication entity:{'sup': i', 'i', 'i', 'i', 'i', 'i', 'i, 'sub': 'moy', 'determining for a given transmission mode (MODE), a value of a first metric (α) corrected by a second metric (ν), the first metric (α) measuring, at a given distance d, a relative degradation introduced by the communication signal transmission medium that is the result of a relative degradation linked to a multipath effect at the link level relative to a Gaussian channel and that is the result of a relative degradation linked to an effect of attenuation of the transmission medium relative to a model of attenuation in free space, the second metric (ν) determining a ratio between a mean bitrate (D) and the physical bitrate (D) for this same transmission ...

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Номер записи: 93
25-02-2021 дата публикации

ROBUST RELAYING INFORMATION TRANSMITTED TO ORIGINATION DEVICE

Номер: US20210058188A1
Автор: KALHAN Amit
Принадлежит:

An origination device (e.g., a base station) receives relaying information from a signal forwarding device in a grant or a broadcast message. The relaying information can be information pertaining to channel conditions and/or quality (e.g., a Channel Quality Indicator) of a first communication link between the signal forwarding device and a destination device, and/or an encoding rate based on channel conditions associated with the first communication link. The origination device utilizes the relaying information to determine a first set of encoding parameters that correspond to channel conditions associated with the first communication link between the signal forwarding device and a destination device. The origination device encodes a first set of data according to the first set of encoding parameters and transmits the encoded first set of data to the signal forwarding device. The signal forwarding device transmits the encoded first set of data to the destination device. 1. A method comprising:receiving, from a signal forwarding device at an origination device, relaying information associated with a first communication link between the signal forwarding device and a destination device; andencoding, at the origination device, a first set of data, according to a first set of encoding parameters corresponding to the relaying information associated with the first communication link.2. The method of claim 1 , wherein receiving the relaying information associated with the first communication link comprises at least one of the following: receiving the relaying information in a grant claim 1 , and receiving the relaying information in a broadcast message.3. The method of claim 1 , wherein the relaying information associated with the first communication link comprises at least one of the following: a Channel Quality Indicator pertaining to the first communication link claim 1 , and a first encoding rate based on channel conditions associated with the first communication link ...

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Номер записи: 94
14-02-2019 дата публикации

MODIFYING CSI TRANSMISSIONS OVER UPLINK SHARED RESOURCES

Номер: US20190053097A1
Автор: Chen Wanshi, Gaal Peter, RICO ALVARINO Alberto
Принадлежит:

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a coding rate threshold associated with transmitting an uplink control information (UCI) message during a time period, determine whether to reduce a size of the UCI message based on the coding rate threshold, and transmit at least a portion of the UCI message on uplink shared resources allocated for the time period. The UE may determine to reduce the size of the UCI message by dropping portions of the UCI message based on a size of uplink control resources, a size of uplink shared resources, additional parameters signaled to the UE, or some combination of these factors. 1. A method for wireless communication , comprising:identifying a coding rate threshold associated with transmitting an uplink control information (UCI) message during a time period;determining whether to reduce a size of the UCI message based at least in part on the coding rate threshold; andtransmitting at least a portion of the UCI message on uplink shared resources allocated for the time period.2. The method of claim 1 , further comprising:receiving an indication of the coding rate threshold.3. The method of claim 1 , wherein the time period comprises a subframe.4. The method of claim 1 , wherein the uplink shared resources comprise physical uplink shared channel (PUSCH) resources.5. The method of claim 1 , further comprising:reducing the size of the UCI message based at least in part on the coding rate threshold and a size of uplink control resources associated with the time period.6. The method of claim 5 , further comprising:receiving an indication message that indicates which of a plurality of resource blocks of the uplink control resources to use for determining a reduced size of the UCI message; andreducing the size of the UCI message based at least in part on a size of the indicated resource block.7. The method of claim 6 , wherein the indication message comprises an acknowledgment ...

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Номер записи: 95
05-03-2015 дата публикации

TRANSMITTING APPARATUS AND RECEIVING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

Номер: US20150063490A1
Автор: Hwang Sung-hee, MOURAD Alain, Yang Hyun-Koo
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A transmitting apparatus, a receiving apparatus and methods of transmission and reception are provided. The transmitting apparatus includes: a frame generator configured to map data contained in an input stream to at least one signal processing path to generate a frame; an information inserter configured to insert signaling information in a signaling region of the frame; and a transmitter configured to transmit the frame in which the signaling information is inserted, wherein the signaling information comprises information on an input type of each of the at least one input stream and information on a type of data which is mapped to the at least one signal processing path. 1. A transmitting apparatus comprising:a frame generator configured to map data contained in at least one input stream to at least one signal processing path to generate a frame;an information inserter configured to insert signaling information in a signaling region of the frame; anda transmitter configured to transmit the frame in which the signaling information is inserted,wherein the signaling information comprises information on an input type of each of the at least one input stream and information on a type of data which is mapped to the at least one signal processing path.2. The transmitting apparatus of claim 1 , wherein the information on the input type comprises information on whether all of signal processing paths in the frame are the same input type.3. The transmitting apparatus of claim 1 , wherein the information on the input type comprises information on at least one of a first input type in which all of signal processing paths in the frame transmit only a first type stream in a standalone mode claim 1 , a second input type in which all of the signal processing paths transmit the first type stream and a second type stream which is different from the first type stream in a mixed mode claim 1 , a third input type in which all of the signal processing paths transmit the second type ...

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Номер записи: 96
02-03-2017 дата публикации

PERSISTENT CHECKSUM DATA VALIDATION

Номер: US20170060674A1
Автор: Nazari Siamak, SILVERSIDES TIM
Принадлежит:

Examples relate to persistent checksum data validation. In some examples, it is determined if a storage array supports a persistent checksum capability. After determining that the storage array supports the persistent checksum capability, protection information is added to a data packet at an egress port, where the protection information includes a cyclic redundancy check (CRC), a serial number, and an offset. The data packet is sent with the protection information to the storage array, where the storage array uses the protection information to validate the data packet. A data response is received from the storage array, and then the protection information is used to validate the data response. 1. A computing device comprising:a host bus adapter comprising an egress port to communicate with a storage array; and determine if the storage array supports a persistent checksum capability;', 'after determining that the storage array supports the persistent checksum capability, add protection information to a data packet at the egress port, wherein the protection information comprises a cyclic redundancy check (CRC), a serial number, and an offset;', 'send the data packet with the protection information to the storage array, wherein the storage array uses the protection information to validate the data packet;', 'receive a data response from the storage array; and', 'use the protection information to validate the data response., 'a processor to2. The computing device of claim 1 , wherein the processor is further to:after determining that a second storage array does not support the persistent checksum capability, send a second data packet without the protection information to the second storage array.3. The computing device of claim 1 , wherein validating the data response comprises using the CRC to verify that the data response has not been modified claim 1 , using the serial number to verify the origin of the data response claim 1 , and using the offset to determine a ...

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Номер записи: 97
03-03-2016 дата публикации

SIGNALING DIFFERENT MCS SETS FOR DIFFERENT BANDWIDTHS

Номер: US20160065327A1
Автор: Asterjadhi Alfred
Принадлежит:

Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to using fields of a frame to indicate different modulation and coding scheme (MCS) sets for communications on a first bandwidth and on a second bandwidth. 1. An apparatus for wireless communications , comprising:a processing system configured to generate a frame having a first field that indicates a first modulation and coding scheme (MCS) set that the apparatus is capable of supporting for a first bandwidth and a second field that indicates a second modulation and coding scheme (MCS) set that the apparatus is capable of supporting for a second bandwidth, wherein different values of the second field indicate different MCS sets the apparatus is capable of supporting for the second bandwidth; andan interface configured to output the frame for transmission.2. The apparatus of claim 1 , wherein the first bandwidth comprises a bandwidth of 2 MHz or greater and the second bandwidth comprises a bandwidth of 1 MHz or less.3. The apparatus of claim 1 , wherein the different values of the second field indicate different numbers of spatial streams the apparatus is capable of supporting at the second bandwidth using the second MCS set.4. The apparatus of claim 1 , wherein at least one of the different values of the second field indicates a same number of spatial streams and MCS set as indicated by the first field.5. The apparatus of claim 1 , wherein at least one of the different values of the second field indicates that the apparatus is capable of supporting the second MCS set at the second bandwidth for a single spatial stream.6. The apparatus of claim 1 , wherein:the different MCS sets indicated by the different values of the second field correspond to different MCS sets that the apparatus can indicate via different values of the first field.7. The apparatus of claim 1 , wherein the first MCS set comprises a MCS set that the apparatus is capable of supporting for a ...

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Номер записи: 98
20-02-2020 дата публикации

TRANSMISSION DEVICE AND METHOD OF OPERATING SAME

Номер: US20200059320A1
Автор: Kim Kang Ho
Принадлежит:

Proposed are a transmission device and a method of operating the same for stopping (ending) data transmission even though a predetermined number of repetitions, that is, Repetition Level (RL) repetitions remain when a reception device succeeds in data decoding while data is transmitted through a repetitive data transmission operation. 1. A transmission device comprising:a repetitive transmission unit configured to perform a repetitive data transmission operation to a specific reception device a preset number of times;a signal reception identification unit configured to identify whether a specific signal is received from the specific reception device before the repetitive data transmission operation is completed, the specific signal indicating that the data is sucessfully received by the specific reception device; anda controller configured to end the repetitive data transmission operation when reception of the specific signal is identified.2. The transmission device of claim 1 , further comprising an information provision unit configured to claim 1 , when the transmission device is a Base Station (BS) claim 1 , provide first information related to a specific number of repetitive transmission and second information related to a specific period for attempting transmission of the specific signal to the specific reception device.3. The transmission device of claim 2 , wherein the information provision unit transmits the first information and the second information through a specific downlink channel using a resource block within a Physical Downlink Shared Channel (PDSCH).4. The transmission device of claim 2 , wherein the signal reception identification unit identifies whether the specific signal is received in specific uplink resource pre-allocated o the specific reception device.5. The transmission device of claim 4 , wherein the specific uplink resource is a subframe within a Physical Uplink Control Channel (PUCCH) claim 4 , a location of the subrame being determined ...

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Номер записи: 99
01-03-2018 дата публикации

WIRELESS COMMUNICATING METHOD AND ASSOCIATED ELECTRONIC DEVICE

Номер: US20180062787A1
Автор: HSIEH Hung-Tao, Hsu YungPing, Hu Shengquan, Hung Kun-Chien, JR. Thomas Edward, Liu Hsuan-Yu, Liu Jianhan, PARE, Yang Tung Sheng, Yee Chih-Shi
Принадлежит:

A wireless communicating method includes: performing one resource unit allocation upon a channel; and allocating a first resource unit and a second resource unit in said one resource unit allocation to a station, wherein the first resource unit is different from the second resource unit. By using the wireless communication method, throughput rate can be improved. 1. A wireless communicating method , comprising:performing one resource unit (RU) allocation upon a channel; andallocating a first RU and a second RU in said one RU allocation to a station, wherein the first RU is different from the second RU.2. The wireless communicating method of claim 1 , further comprising:communicating with the station in the first RU with a first transmission power; andcommunicating with the station in the second RU with a second transmission power, wherein the second transmission power is different from the first transmission power.3. The wireless communicating method of claim 1 , further comprising:utilizing a first Modulation and Coding Scheme (MCS) for the station communicating in the first RU; andutilizing a second MCS for the station communicating in the second RU, wherein the second MCS is different from the first MCS.4. The wireless communicating method of claim 3 , further comprising:utilizing a first cyclic redundancy check (CRC) for the station communicating in the first RU; andutilizing a second CRC for the station communicating in the second RU, wherein the second CRC is different from the first CRC.5. The wireless communicating method of claim 3 , further comprising:encoding a first data with a specific coding rate for communicating in the first RU; andencoding a second data with the specific coding rate for communicating in the second RU.6. The wireless communicating method of claim 1 , further comprising:encoding a first data with a first coding rate for communicating in the first RU; andencoding a second data with a second coding rate for communicating in the second ...

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Номер записи: 100