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3485results about "Error prevention/detection by using return channel" patented technology

Method and apparatus for listen before talk for sidelink transmission in a wireless communication system

In an example from the perspective of a first User Equipment (UE), in response to performing successful listen before talk (LBT), the first UE determines a channel occupancy time (COT). The first UE determines whether or not a second sidelink transmission, to be performed by a second UE, is within the COT. The first UE determines information, associated with LBT type and / or cyclic prefix (CP) extension, for inclusion in a first sidelink transmission in the COT, wherein whether the information includes first information associated with LBT type and / or CP extension or the information includes second information associated with LBT type and / or CP extension is based on the determination of whether or not the second sidelink transmission is within the COT. The UE transmits, to the second UE, the first sidelink transmission in the COT. The first sidelink transmission includes the information. The second sidelink transmission is associated with the first sidelink transmission.
Owner:ASUSTEK COMPUTER INC

Method and apparatus for supporting interlaced psfch in unlicensed band

Provided are a method for performing wireless communication by a first device and an apparatus supporting same. The method may comprise: obtaining information related to at least one resource block (RB) set for physical sidelink feedback channel (PSFCH) transmission; receiving, from a second device, a physical sidelink shared channel (PSSCH); determining a number of PSFCH resources related to the PSSCH; determining an index of an interlaced PSFCH resource among the PSFCH resources, in response to the PSSCH; and performing the PSFCH transmission based on the interlaced PSFCH resource.
Owner:LG ELECTRONICS INC

Method and apparatus for transmitting and receiving group common signal and channel in wireless communication system

Disclosed are a method and apparatus for transmitting and receiving a group common signal and channel in a wireless communication system. The method performed by a terminal in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: receiving configuration information regarding one or more TCI states; receiving information related to activation or inactivation of at least one TCI state from among the one or more TCI states; and receiving a specific value via DCI for scheduling a PDSCH. Here, on the basis that a TCI state mapped to the specific value is activated, the PDSCH may be received on the basis of the TCI state, and on the basis that the TCI state mapped to the specific value is inactivated, the DCI may be ignored by the terminal.
Owner:LG ELECTRONICS INC

Method and apparatus for performing channel access for psfch transmission in unlicensed band

A method for performing wireless communication by a first device, and an apparatus supporting same are provided. The method may comprise the steps of: receiving information related to channel occupancy time (COT) from a second device; receiving a first physical sidelink shared channel (PSSCH) from the second device; determining a first PSFCH resource for first physical sidelink feedback channel (PSFCH) transmission related to the first PSSCH; and performing second-type channel access for the first PSFCH transmission within the COT.
Owner:LG ELECTRONICS INC

Apparatus and method for determining the content of a retransmission

Techniques are disclosed for reducing overhead during hybrid automatic repeat request (HARQ) operations performed by a user equipment (UE) during wireless communication. The UE receives a message over the wireless network and obtains a parity check matrix (PCM) associated with a received message. Rows of the PCM are assigned to respective groups of a plurality of groups, where the respective groups have corresponding one or more parity checks as determined by the PCM. The UE generates a feedback message including a plurality of bits, wherein an individual bit of the plurality of bits indicates whether a corresponding respective group of the plurality of groups include one or more unsatisfied parity checks. The UE then transmits the feedback message to a base station of the wireless network.
Owner:APPLE INC

Terminal, base station and communication method

A terminal includes: a reception unit configured to receive a plurality of downlink shared channels that are scheduled in multiple carriers by a single control information from a base station: a control unit configured to generate feedback information related to retransmission control corresponding to the plurality of downlink shared channels: and a transmission unit configured to transmit the feedback information to the base station. The control unit determines a cell for transmitting the feedback information, based on an uplink shared channel group to which the plurality of downlink shared channels belong.
Owner:NTT DOCOMO INC

Multi-terminal cooperative processing method and system

The invention discloses a multi-terminal cooperative processing method and system, and relates to the field of terminal communication, and the method comprises the steps: responding to a trigger signal of an event, determining event information, and initiating a cooperative processing request to at least one second terminal in a communication range; determining a target terminal responding to the cooperative processing request in the second terminal, and constructing a temporary cooperative group including the target terminal; acquiring shared event associated data in the temporary collaborative group, and determining a consensus event description based on the event associated data and / or the event information; a dominant reporting terminal is determined in the temporary cooperation group, and the dominant reporting terminal is used for packaging the consensus event description into a data packet and sending the data packet to a remote management platform; and receiving a response confirmation message returned by the remote management platform, and broadcasting the unique event ID and the processing state in the response confirmation message to all terminals in the temporary collaborative group. The computing resource consumption of the remote management platform can be effectively reduced.
Owner:WUHAN SHENGBOHUI INFORMATION TECH CO LTD

Transmission of missing data blocks

Method, network device and a computer program in a communication network (100) for the assisting of an application server (130) using the Constrained Application Protocol, CoAP, in the communication of a data object (600) to client devices (110), whereby the data object comprises data blocks (601-609). The network device is operative to inform of a multicast repair functionality. The network device is operative to receive at least one indication of at least one missing data block from a client device that did not successfully receive a data block within a transmission window. The network device is operative to decide to transmit and initiate transmission of the one or missing data block via unicast, multicast or both unicast and multicast. A computer program product is also disclosed.
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Anti-interference serial port communication method and system of industrial-grade wireless module

The invention provides an anti-interference serial port communication method and system for an industrial-grade wireless module, and the method comprises the steps: collecting interference data in the serial port communication of the industrial-grade wireless module in real time based on a multi-dimensional interference feature collection module, and forming a multi-scale interference feature vector; inputting the multi-scale interference feature vector into a Mamba communication state space model fused with a CRC (Cyclic Redundancy Check) mechanism, and predicting a potential interference mode through linear complexity time sequence modeling; based on an adaptive weight transmission optimization function, carrying out dynamic weighting adjustment on the transmission parameters in the potential interference mode; wherein the transmission parameters comprise a baud rate, a data bit length, a verification mode and a retransmission strategy. According to the invention, hardware cost does not need to be increased, and the cost of anti-interference serial port communication is reduced; meanwhile, based on an adaptive weight transmission optimization function, dynamic weighting adjustment is carried out on transmission parameters in a potential interference mode, and interference dynamic changes are tracked in real time to carry out anti-interference communication.
Owner:SHENZHEN YIBANG IOT TECH CO LTD

RDMA network transmission packet loss recovery method and system

The invention provides an RDMA (Remote Direct Memory Access) network transmission packet loss recovery method and system. The method comprises the following steps: a sending end determines that a data stream to be transmitted is a larger or smaller data stream based on a multiple of a bandwidth delay product of an RDMA network; performing redundant coding and code marking on the smaller data stream, generating a data stream carrying a code mark and a redundant data packet, and transmitting the data stream to a receiving end; dividing a larger data stream into a non-tail BDP part and a tail BDP part based on the multiple of the bandwidth delay product, performing redundant coding and coding marking on the tail BDP part, and generating the tail BDP part carrying a coding mark and a redundant data packet; and transmitting a data stream formed by the non-tail BDP part and the tail BDP part carrying the coding mark and the redundant data packet to a receiving end, so that the receiving end carries out packet loss and coding mark detection on the received data stream, and if the packet loss and the coding mark exist, the lost data packet is recovered based on the carried redundant data packet. And if there is packet loss and there is no coding mark, requesting the sending end to select to retransmit and recover the lost data packet.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Method and apparatus for transmitting and receiving multiple portions of data in wireless cooperative communication system

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method and an apparatus for transmitting and receiving one or more pieces of data between a transmission node and a user equipment (UE) to perform cooperative communication in a wireless communication system, thereby improving communication reliability, are provided.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and device for transmitting signal in wireless communication system

This terminal for performing wireless communication in a wireless communication system may comprise: a communication module; and a processor for controlling the communication module, wherein the processor receives a physical sidelink shared channel (PSSCH), and transmits a physical sidelink feedback channel (PSFCH) including hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback information corresponding to the PSSCH, the PSFCH is transmitted in at least one resource block (RB) set, each RB set of the at least one RB set includes physical resource blocks (PRBs) of a first interlace structure and PRBs of a second interlace structure, first data is mapped to the PRBs of the first interlace structure, second data is mapped to the PRBs of the second interlace structure, the first data is the HARQ-ACK feedback information, and the first data and the second data are different from each other.
Owner:WILUS INSTITUTE OF STANDARDS & TECHNOLOGY INC

Method for LTM Mechanism Design

Methods, devices, and systems for providing early timing advance (TA) acquisition are provided. A radio resource control (RRC) configuration of the early TA acquisition is received from a base station. A PDCCH order to trigger a random access channel (RACH) procedure toward a candidate cell is received from the base station. The RACH procedure for the early TA acquisition is initiated based on the received RRC configuration and PDCCH order. A preamble with a calculated transmission power on the candidate cell is transmitted to the base station.
Owner:ZTE CORP

Discontinuous reception method, terminal device and storage medium

Disclosed is a discontinuous reception method, comprising: when a hybrid automatic repeat request (HARQ) function of an uplink HARQ process used for the transmission of uplink data is in a disabled state, after receiving an instruction to schedule a physical downlink control channel (PDCCH) for the transmission of the uplink data, and / or after sending a physical uplink shared channel (PUSCH) that carries the uplink data, a terminal device operating a discontinuous reception uplink retransmission timer corresponding to the uplink HARQ process. Further disclosed are another discontinuous reception method, a terminal device and a storage medium.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Contention window size update for CAT.4 LBT for CBG based retransmission in NR systems operating on unlicensed spectrum

Systems, apparatuses, methods, and computer-readable media are provided for wireless communication using an unlicensed spectrum. An access point (AP) operating in the unlicensed spectrum includes a processor circuitry, a transmitter, and a receiver. The processor circuitry is configured to perform a listen before talk (LBT) procedure using an LBT parameter and a maximum channel occupancy time (MCOT) that is compatible with another wireless protocol using the unlicensed spectrum. The processor circuitry is configured to divide a transport block (TB) into a plurality of code block groups (CBGs) for transmission over the unlicensed spectrum. The transmitter is configured to transmit the plurality of CBGs to a destination, and a receiver is configured to receive hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmitted plurality of CBGs. The processor circuitry is further configured to determine a HARQ-ACK assessment for the TB based on the HARQ-ACK information corresponding to the transmitted plurality of CBGs, and adjust a contention window size based on the HARQ-ACK assessment for the TB.
Owner:APPLE INC

Methods, devices, and computer readable medium for communication

Embodiments of the present disclosure relate to methods, devices, and computer readable medium for communication. According to embodiments of the present disclosure, a first terminal device transmits a sidelink configuration to a set of terminal devices. The sidelink configuration indicates that one sidelink transmission corresponds to a set of sidelink feedback reception occasions and the sidelink configuration also indicates that a sidelink feedback type for the sidelink transmission is negative acknowledgement only (NACK-only). The first terminal device transmits a set of sidelink transmissions to the set of terminal devices. If no sidelink feedback is detected on the last set of sidelink feedback reception occasions of the plurality of sets of sidelink feedback reception occasions, the first terminal device transmits an uplink transmission which indicates an acknowledgement for the set of sidelink transmissions to the network device. In this way, it achieves reporting SL HARQ-ACK in PUCCH / PUSCH when multiple PSFCH are associated with one PSSCH transmission.
Owner:NEC CORP

Communication method and apparatus, and storage medium

Embodiments of this application provide a communication method and apparatus, and a storage medium. A terminal device receives first information from a network device, where the first information includes configuration information of an mth hybrid automatic repeat request (HARQ) process; determines, based on a quantity that is of time units of a downlink time domain resource and that is determined from the configuration information and / or based on modulation and coding scheme (MCS) index in the configuration information, whether the mth HARQ process of M HARQ processes between the terminal device and the network device is enabled or disabled, where the mth HARQ process is configured as a dynamically adjustable HARQ process; and performs communication based on a result of the determining. Flexibility of scheduling a HARQ process is improved, and a scheduling delay is reduced.
Owner:HUAWEI TECH CO LTD

Communication method and related apparatus

A method includes: when a status report triggering condition and / or sending condition are / is met, sending a status report. In response to when a first variable of a first data packet is less than a first threshold, the status report includes negative acknowledgement NACK information of the first data packet; or in response to when a first variable of a first data packet is greater than or equal to a first threshold, the status report does not include NACK information of the first data packet. The first data packet is an unsuccessfully received data packet, and the first variable of the first data packet indicates a quantity of feedback times of the NACK information of the first data packet.
Owner:HUAWEI TECH CO LTD

Enhancement of PUCCH transmissions

A user equipment (UE) is configured to determine a repetition factor for physical uplink control channel (PUCCH) transmissions. The UE receives a first physical uplink control channel (PUCCH) repetition factor indication, wherein the first PUCCH repetition factor indication is a radio resource control (RRC)-based indication, receives a second PUCCH repetition factor indication, wherein the second PUCCH repetition factor is dynamically indicated via a downlink control information (DCI) transmission and determines a number of PUCCH repetitions based on at least one of the first and second PUCCH repetition factor indications.
Owner:APPLE INC

Information transmission method and communications device

This application provides an information transmission method and a communications device. The method includes: generating, by a terminal device, a hybrid automatic repeat request-acknowledgment HARQ-ACK codebook corresponding to an ith time domain interval, where the ith time domain interval is any one of N time domain intervals of one slot, i is less than or equal to N, i is a positive integer, and N is a positive integer greater than 1; determining, by the terminal device, a physical uplink control channel PUCCH resource corresponding to the HARQ-ACK codebook; and sending, by the terminal device, the HARQ-ACK codebook on the PUCCH resource.
Owner:HUAWEI TECH CO LTD

Method for processing wireless transmission, and device

Provided is a method for processing wireless transmission. The method includes: performing wireless transmission-related processing based on a selection or usage rule for a first hybrid automatic repeat request (HARQ) process or based on a transmission or processing mode for a first resource, wherein the first HARQ process is an HARQ process satisfying a collision condition, and the first resource is a resource corresponding to the first HARQ process.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Secure wireless traffic prediction method using federated learning

Wireless traffic prediction is crucial for improving the performance of an intelligent cellular network, and influences the optimal configuration of network resources, the service quality and the satisfaction degree of final users. The traditional method is limited in precision when processing dynamic flow data, and has the problems of privacy leakage and response delay. Therefore, the invention provides a wireless traffic prediction method which is combined with the federated learning and the Kolmogorov-ArnoldNetworks (KAN). The method comprises the following steps: firstly, acquiring differential flow data of different geographic positions and preprocessing the differential flow data; then, edge computing and federated learning techniques are employed to allow a plurality of edge devices to locally train the LSTM model. On the basis, the KAN is combined to deeply mine the internal complexity of the flow data, and the adaptability of the model is enhanced. Meanwhile, a FedNova model updating mechanism is introduced, and data heterogeneity between devices is considered. Compared with the evaluation of the traditional method, the method provided by the invention is proved to have superiority in the aspects of prediction precision, calculation efficiency and data privacy protection.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Method and apparatus for transmitting / receiving HARQ-ACK feedback for network cooperative communication

The disclosure relates to a communication technique that converges a 5th generation (5G) communication system for supporting a higher data rate after a 4th generation (4G) system with Internet of things (IoT) technology, and a system thereof. The disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart or connected car, healthcare, digital education, retail, security and safety related services, etc.) based on 5G communication technology and IoT-related technology. The disclosure relates to a wireless communication system and, more particularly, to a method and an apparatus wherein a User Equipment (UE) transmits Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK) information to multiple transmission points, panels, or beams through an uplink for cooperative communication between multiple transmission points, panels, or beams.
Owner:SAMSUNG ELECTRONICS CO LTD

Communication method, network device, and terminal device

This application provides a communication method. The method includes a first terminal device receiving first downlink data from a network device through a first link. Then, after decoding the first downlink data to obtain a first decoding result, the first terminal device sends first information to a second terminal device through a second link, where the first information includes first hybrid automatic repeat request acknowledgement (HARQ-ACK) information, and the first HARQ-ACK information indicates the first decoding result. The first link is a link between the first terminal device and the network device, and the second link is a link between the first terminal device and the second terminal device. The first terminal device feeds back HARQ-ACK information of downlink data to the second terminal device.
Owner:HUAWEI TECH CO LTD

OTA upgrading method and system for Bluetooth sound equipment

The invention relates to the technical field of wireless communication, in particular to an OTA upgrading method and system for Bluetooth sound equipment. The method comprises the following steps: acquiring to-be-upgraded firmware data and currently played audio data, and acquiring power amplifier current feedback data of a sound speaker by sending a double-frequency detection signal containing 21kHz and 22kHz; acquiring equipment transmission capability confirmation data according to a silent response mode of the sound equipment to the preset handshake signal; and calculating a nonlinear distortion coefficient of the loudspeaker according to the intensity of the 1kHz difference frequency component in the power amplifier current feedback data, and obtaining real-time channel evaluation data based on current waveform deviation analysis. According to the method, the nonlinear distortion degree of the loudspeaker is accurately evaluated through the 1kHz difference frequency component generated by the 21kHz and 22kHz dual-frequency detection signals, so that the reliability of data transmission is more accurately predicted.
Owner:深圳中成圣达科技有限公司

Resolving ambiguities resulting from overlapping physical downlink control channel candidates of different aggregation levels

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a plurality of physical downlink control channel (PDCCH) candidates that are to be monitored for downlink control information (DCI). The plurality of PDCCH candidates may include a PDCCH candidate having a first aggregation level and a set of linked PDCCH candidates, for repetitions of DCI, having a second aggregation level. The PDCCH candidate may overlap with one PDCCH candidate of the set of linked PDCCH candidates. The UE may communicate according to one or more rules for the PDCCH candidate overlapping with the one PDCCH candidate of the set of linked PDCCH candidates. Numerous other aspects are described.
Owner:QUALCOMM INC