53 results about "Hybrid automatic repeat request harq" patented technology

This application pertains to the field of communication technologies, and discloses a hybrid automatic repeat request HARQ feedback method and apparatus, and a terminal. The HARQ feedback method in embodiments of this application includes: determining, by a terminal based on first information, a HARQ feedback codebook to be sent based on a target physical uplink control channel PUCCH occasion, where the first information includes an inactive period of discontinuous transmission DTX in a target cell or discontinuous reception DRX in a target cell, and the target cell includes a serving cell of the terminal.

A method for HARQ feedback, a terminal, and a network device are provided. The method includes: obtaining DCI in a GC-PDCCH; and feeding back HARQ acknowledgement information according to the DCI.

A Hybrid Automatic Repeat reQuest HARQ feedback method for a multicast and / or broadcast service, a terminal and a base station are provided. The method includes: receiving, by a terminal, first indication information transmitted by a network, wherein the first indication information indicates at least one of following information: a Physical Downlink Control CHannel PDCCH detection behavior, a transmission method of the multicast and / or broadcast service, and a Physical Downlink Shared CHannel PDSCH receiving behavior; and determining, by the terminal based on the first indication information, a Physical Uplink Control CHannel PUCCH resource used for reporting HARQ of a PDSCH.

A data transmission method, a device, and a medium are disclosed. The data transmission method includes: determining hybrid automatic repeat request HARQ feedback type configuration information of a sending terminal device, where the HARQ feedback type configuration information is configured based on service information of a service, and the service information includes a quality of service QoS parameter of the service and / or group information of the service; and sending a data packet to a receiving terminal device based on the HARQ feedback type configuration information.

A communication method and apparatus. A terminal device determines a priority of a first hybrid automatic repeat request HARQ process. The terminal device determines a target HARQ process from the first HARQ process based on the priority, to transmit data to a network device on a target configured grant by using the target HARQ process. The first HARQ process includes at least one HARQ process corresponding to the target configured grant thereby reducing a latency of transmitting data by using the target HARQ process.

The invention provides a 5GNR HARQ retransmission self-adaption method and device and related equipment, and relates to the technical field of communication. According to the technical scheme, in the process that communication equipment transmits target data to a base station, under the condition that a hybrid automatic repeat request HARQ is generated, a modulation and coding strategy MCS and a resource block RB corresponding to the HARQ are recalculated, and the target data are transmitted to the base station. According to the embodiment of the invention, the target terminal sends the target data to the target terminal according to the MCS, the RB and the target k0, traversal matching is carried out in a plurality of preset k0, the target k0 matched with the resource block RB is determined, and the target data is sent to the target terminal again according to the MCS, the RB and the target k0, so that transmission parameters are adaptively adjusted in the HARQ retransmission process, and the success rate of HARQ retransmission is improved.

According to the present invention, a method performed by a user equipment UE is provided, including: identifying a hybrid automatic repeat request HARQ process corresponding to the received uplink scheduling for the received uplink scheduling; determining whether the uplink scheduling is for a new transmission or for a retransmission; in the case where it is determined that the uplink scheduling is for a new transmission, for an uplink scheduling whose physical uplink shared channel PUSCH duration does not overlap with the PUSCH durations of other uplink schedulings, or an uplink scheduling whose PUSCH duration overlaps only with the PUSCH durations of other uplink schedulings with lower priorities, or a dynamic uplink scheduling whose PUSCH duration does not overlap with the PUSCH durations of other configured uplink schedulings with higher priorities, if the corresponding MAC PDU, i.e., the media access control protocol data unit, is obtained, then indicating that the identified HARQ process triggers a new transmission of the MAC PDU.

This application provides a data transmission method and an apparatus, and relates to the field of communication technologies. A proper HARQ mechanism is designed to ensure a normal HARQ in unicast transmission or multicast transmission. The data transmission method includes: receiving scheduling information from a first communication apparatus; determining transmission indication information based on the scheduling information; receiving, based on the scheduling information, a first transport block from the first communication apparatus, and determining first hybrid automatic repeat request HARQ information of the first transport block; and determining a first HARQ process based on the first HARQ information and the transmission indication information, and allocating the first transport block to the first HARQ process.

Embodiments of the present disclosure relate to devices, methods, and computer-readable storage media for HARQ feedback for multiple data channels scheduled by a single DCI. The method includes receiving control information from a network device at a terminal device; determining a control channel for sending hybrid automatic repeat request HARQ feedback information associated with the multiple transport blocks based on determining that the transmission of the multiple transport blocks from the network device to the terminal device on a set of data channels is scheduled by the control information; and sending the HARQ feedback information to the network device via the control channel. In this way, an enhancement of the HARQ‑ACK feedback mechanism for the terminal device can be achieved when multiple TBs / independent PDSCHs are scheduled by a single DCI, which can mitigate possible PUCCH conflicts and provide greater flexibility.

A HARQ process number determining method and a related apparatus are provided. The method includes: obtaining a first hybrid automatic repeat request HARQ process number corresponding to a first configured grant CG physical uplink shared channel PUSCH; determining, based on the first HARQ process number, a second HARQ process number corresponding to a second CG PUSCH; and transmitting data on a first PUSCH corresponding to the first HARQ process number and a second PUSCH corresponding to the second HARQ process number.

A wireless transmit receive unit (WTRU) and methods for mitigating narrowband interference on sidelink communications are disclosed. A method performed by the WTRU may include: receiving sidelink control information (SCI) including information indicating at least one alternative transmit resource pool (TxRP) different from the TxRP of the received SCI, and reserving resources on the at least one alternative TxRP according to the information indicated in the SCI. the method may include receiving at least one of a PSCCH transmission or a PSSCH transmission, via the reserved resources, for a Hybrid Automatic Repeat Request HARQ transmission or a HARQ retransmission, and transmitting a PSFCH signal for HARQ feedback on the at least one alternative TxRP or the TxRP of the received SCI.

A timing advance report sending method and an apparatus are provided, and relate to the field of communication technologies, to improve reliability of timing advance reporting and assist in network device scheduling. The method may include: A terminal device determines whether an available first resource is present, where the available first resource is associated with a hybrid automatic repeat request HARQ process configured with a HARQ mode A, and the HARQ mode A supports retransmission. When the available first resource is present, the terminal device sends a timing advance report to a network device by using the available first resource.

A method for generating uplink control information UCI includes: A terminal generates a first UCI bit sequence, where the first UCI bit sequence includes a first bit sequence and a second bit sequence; the first bit sequence corresponds to first information, and the first information is hybrid automatic repeat request HARQ feedback information; the second bit sequence corresponds to second information, and the second information indicates a physical uplink shared channel PUSCH resource used or unused in a configured grant CG period; and the first bit sequence is prior to the second bit sequence, a length of the first bit sequence is greater than or equal to 1, and a length of the second bit sequence is greater than or equal to 1. The terminal outputs the first UCI bit sequence. A terminal is configured to perform the method.

An information sending method, an information receiving method, a terminal, and a control node are provided. The information sending method is applied to a sending end and includes: sending first information to a receiving end; where the first information is used to assist the receiving end in determining whether to perform hybrid automatic repeat request HARQ feedback; and the first information includes at least one of the following: a communication range indicator, a correspondence between side lengths of geographical zones and communication ranges, a geographical zone division rule, and a coverage area identifier of a control node serving the sending end.

Embodiments of this application provide a cell handover method and apparatus, and are applied to the communication field. The cell handover method includes a terminal device receiving a handover command from an access network device. Based on configuration information of a source cell group and configuration information of a target cell group, the method cancels a triggered first buffer status report BSR and / or deletes a data packet corresponding to a first hybrid automatic repeat request HARQ process. Then the method performs handover to the target cell group based on the handover command. In embodiments of this application, a behavior of partially resetting information at a MAC layer by the terminal device can be specified, to improve continuity of data transmission during cell handover, so as to improve user experience.

This application discloses a discontinuous reception control method and apparatus, a terminal, and a readable storage medium. The method includes: performing, by a first terminal, a first operation during sidelink-based transmission, where the first operation includes at least one of the following: the first terminal determines a status of whether to send a hybrid automatic repeat request HARQ feedback, and the first terminal decodes a data packet; and determining, by the first terminal based on an execution result of the first operation, whether to start a timer for controlling sidelink discontinuous reception.

The present disclosure relates to user equipment, electronic devices, wireless communication methods and storage media. The user equipment according to the present disclosure includes a processing circuit, which is configured to: demodulate a downlink signal from a network side device to obtain a physical downlink control channel PDCCH contained therein; and determine whether to perform hybrid automatic repeat request HARQ feedback for the DCI according to the content of the downlink control information DCI carried by the PDCCH. Using the user equipment, electronic devices, wireless communication methods and computer-readable storage media according to the present disclosure, the reliability of the control information carried by the PDCCH can be improved.

The invention provides a model training method and device and a channel quality indicator value prediction method and device, and relates to the technical field of communication. The method comprises: obtaining state information according to a channel quality indicator (CQI) value reported by a terminal and hybrid automatic repeat request (HARQ) feedback information, the state information being training data of a deep Q network (DQN) model; and training the DQN model according to the training data and a reward function to obtain a target DQN model, the reward function comprising reward values corresponding to three types of prediction effects, and the target DQN model being used for predicting a CQI value. According to the scheme, the number of reward values is increased, the DQN model can obtain more reward values under the prediction effect based on the reward function, the algorithm prediction effect can be improved, and network convergence is accelerated.

The present disclosure proposes a hybrid automatic repeat request HARQ transmission method, device and communication equipment, which relate to the field of wireless communication technology. The method includes: receiving multiple SPS PDSCH resources through UE, and jointly reporting from multiple SPS PDSCH resources with N as granularity. Since HARQ-ACK feedback is jointly reported from multiple SPS PDSCH resources with N as granularity, it is beneficial to reduce HARQ-ACK feedback overhead.

This application relates to the field of wireless communication technologies, and in particular, to a time control, an apparatus, and a computer-readable storage medium. This application provides a timer control method, including: When downlink control information indicates data transmission of N hybrid automatic repeat request HARQ processes and a terminal device is configured with the N HARQ processes, where N is an integer greater than or equal to 2, a discontinuous reception inactivity timer is not started or the discontinuous reception inactivity timer is stopped.

This application discloses a protocol data unit generation method, a configuration method, an apparatus, and an electronic device. The protocol data unit generation method is applied to a terminal, and the method includes: generating, by a media access control MAC entity of the terminal, a MAC protocol data unit PDU for a currently scheduled hybrid automatic repeat request HARQ entity according to at least one of the following: first indication information sent by a network-side device, second indication information sent by a physical layer entity to the MAC entity, and a configuration of the terminal; and sending, by the MAC entity, the generated MAC PDU to the physical layer entity.

A feedback resource determining method and apparatus is applied to systems such as an internet of vehicles, V2X, and V2V. The method includes obtaining a first parameter, where the first parameter is related to a cast type and a hybrid automatic repeat request HARQ feedback manner, the cast type includes unicast and multicast, and the HARQ feedback manner corresponds to the cast type; and determining a physical sidelink feedback channel PSFCH based on the first parameter. According to the feedback resource determining method and apparatus provided, PSFCHs of different sizes are allocated for different cast types and HARQ feedback manners. This improves resource utilization.

A Hybrid Automatic Repeat reQuest HARQ feedback method for a multicast and / or broadcast service, a terminal and a base station are provided. The method includes: receiving, by a terminal, first indication information transmitted by a network, wherein the first indication information indicates at least one of following information: a Physical Downlink Control CHannel PDCCH detection behavior, a transmission method of the multicast and / or broadcast service, and a Physical Downlink Shared CHannel PDSCH receiving behavior; and determining, by the terminal based on the first indication information, a Physical Uplink Control CHannel PUCCH resource used for reporting HARQ of a PDSCH.

The present invention relates to communication technologies and systems for communication technologies. The present invention can be applied to intelligent services (such as smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related services, etc.) based on 5G communication technology and IoT-related technologies. The present invention provides a method performed by a terminal in a wireless communication system, including: receiving information about the number of codeblock groups for each transport block TB from a base station, where each codeblock group includes at least one codeblock; receiving the TB and control information for scheduling the TB from the base station; identifying the codeblock group of the TB based on the number of codeblocks of the TB and the information, the number of codeblocks of the TB being determined based on the control information; decoding the TB based on the identified codeblock group; and sending hybrid automatic repeat request HARQ feedback information to the base station based on the decoding result.

A user equipment (UE) includes a processor coupled to one or more non-transitory computer-readable media. The processor is configured to execute the computer-executable instructions to determine that the transmission of a media access control MAC protocol data unit PDU using a first physical uplink shared channel PUSCH resource was not successfully performed, the first PUSCH resource is associated with a first configuration authorization CG configuration, the first PUSCH resource is associated with a first hybrid automatic repeat request HARQ process, and the MAC PDU is acquired for the first HARQ process; receive a second CG configuration; determine that a second PUSCH resource associated with the second CG configuration can be used for another transmission, the second PUSCH resource is associated with a second HARQ process; if one or more specific conditions are met, determine that the second PUSCH resource can be used to transmit the MAC PDU; and when it is determined that the second PUSCH resource can be used to transmit the MAC PDU, transmit the MAC PDU on the second PUSCH resource.

The embodiments of the present application disclose a data transmission method, device and system, which relate to the field of communications and can flexibly configure the HARQ process to improve the throughput of data transmission. The specific scheme is: the network device sends a first transmission block and a first identifier to the terminal, and the first identifier is used to indicate whether the hybrid automatic repeat request HARQ process where the first transmission block is located is switched from non-HARQ transmission to HARQ transmission. The first identifier is occupied when the HARQ process is the HARQ transmission. The terminal receives the first transmission block and the first identifier from the network device, and the first identifier is used to indicate whether the hybrid automatic repeat request HARQ process where the first transmission block is located is switched from non-HARQ transmission to HARQ transmission.

A wireless transmit receive unit (WTRU) and methods are disclosed for mitigating narrowband interference on sidelink communications. The method may include: receiving, at a WTRU, SCI, the SCI including information indicating at least one alternative TxRP different from the TxRP used for SCI is transmission, reserving, at the WTRU, resources on the at least one alternative TxRP according to the information indicated by the received SCI; and transmitting, by the WRTU, at least one of: a PSCCH, and a PSSCH, alone or in combination, via the reserved resources for a Hybrid Automatic Repeat Request HARQ transmission or HARQ retransmission, or a PSFCH for HARQ feedback, on the at least one alternative TxRP. The method may also include determining a rank of PSSCH transmission based on a CSI-RS, determining to apply PSSCH layer aggregation according to a channel quality when the determined rank is greater than 1.

The embodiment of the invention discloses a wireless link failure detection method and device for a sidelink, which can be applied to systems such as Internet of Vehicles, V2X, V2V and the like, and the method comprises the following steps: terminal equipment determines a receiving condition of hybrid automatic repeat request (HARQ) feedback on a physical sidelink feedback channel (PSFCH); according to the receiving condition fed back by the HARQ on the PSFCH, determining whether the unicast connection triggers a sidelink (SL) radio link failure (RLF); wherein the unicast connection is the unicast connection established by the sending terminal and the receiving terminal on the sidelink, the sending terminal and the receiving terminal perform sidelink communication through a plurality of carriers, and the plurality of carriers are associated with the unicast connection. By implementing the embodiment of the invention, the problem of how to effectively detect the RLF in a sidelink carrier aggregation scene can be solved, so that an RLF mechanism can be supported in the carrier aggregation scene of sidelink communication.

The embodiment of the present application discloses a PUCCH demodulation method, device and base station. The method includes: obtaining a theoretical value of the number of bits of uplink control information UCI sent by user equipment UE, wherein the theoretical value is determined based on at least the number of downlink control information DCI sent by the base station within a hybrid automatic repeat request HARQ feedback window; determining a physical layer uplink control channel PUCCH resource set that matches the theoretical value to obtain PUCCH resource set i; when the theoretical value is greater than a preset threshold, using PUCCH resource set i and PUCCH resource set i-1 to demodulate the received HARQ response respectively; wherein, when the UCI only carries the HARQ response, the threshold is the maximum value N1 of the UCI load of PUCCH resource set 0; wherein i=1,2,3.

The embodiment of the present application provides a hybrid automatic repeat request HARQ information transmission method and device, which relates to the field of communication technology. The terminal device receives first downlink control information, and the first downlink control information is used to indicate a first downlink allocation index DAI and schedule a physical uplink shared channel PUSCH; receives second downlink control information, and the second downlink control information is used to indicate a second DAI and schedule one or more physical downlink shared channels PDSCH to feedback HARQ information on the same physical uplink control channel PUCCH, and the second downlink control information carries the second DAI; according to the timing of the first downlink control information and the second downlink control information, the first DAI or the second DAI is selected to determine the number of bits multiplexed on the PUSCH for the HARQ information. This method can save the scheduling signaling of the access network device, reduce the implementation complexity of the access device and the terminal device, and increase the scheduling flexibility of the access device.