28 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 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.

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 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.

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 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 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.

This application discloses a communication method includes: obtaining a plurality of information bits in first transmission; grouping the plurality of information bits into m groups of first information bit sequences K1, . . . , Km; encoding the m groups of first information bit sequences to obtain a first target encoded codeword; sending the first target encoded codeword to a receive end; performing interleaving processing on n groups of first information bit sequences in the m groups of first information bit sequences in tth retransmission if the first transmission fails, to obtain m groups of first bit sequences X1, . . . , Xm; encoding the m groups of first bit sequences to obtain a second target encoded codeword; and sending the second target encoded codeword to the receive end. In this way, in a HARQ-based implementation, interleaving processing is performed on some information bit sequences in a retransmission process.

The embodiment of the application provides a kind of MAC PDU transmission processing method and device, the method is applied to terminal equipment, comprising: generating first MAC PDU;Empty the hybrid automatic repeat request HARQ buffer containing first MAC PDU or suspend the transmission of first MAC PDU;First MAC PDU includes but is not limited to at least one of the following: Padding MAC PDU;MAC PDU containing at least one or more MAC CEs in Padding BSR MAC CE, Padding SL-BSR MAC CE, periodic BSR MAC CE and Recommended bit rate query MAC CE, wherein, the periodic BSR reporting content is empty.Thereby, the timely sending of new transmission data is guaranteed.

An uplink control information mapping and sending method and a communication apparatus are provided. The uplink control information mapping and sending method includes: A terminal generates a first bit sequence and a second bit sequence, where the first bit sequence corresponds to first information, 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 configured grant CG resource used or unused in a CG periodicity time period. The terminal sends the first information by using a first resource of a physical uplink shared channel PUSCH, where a number of first resources is related to a number of bits included in the second bit sequence.

The present disclosure provides a kind of hybrid automatic repeat request HARQ feedback method and device, wherein the method comprises: determining multiple target HARQ results;The multiple target HARQ results are the HARQ results corresponding to multiple target physical downlink shared channel PDSCH respectively, and the multiple target PDSCH is the multiple PDSCH scheduled by current physical downlink control channel PDCCH;According to the multiple target HARQ results, determine group HARQ result;The group HARQ result is used to characterize the multiple target HARQ results;Determine one target physical uplink control channel PUCCH;The target PUCCH is the PUCCH of the corresponding target resource for carrying the group HARQ result;The group HARQ result is carried by the target resource, and the target PUCCH is sent to base station.The present disclosure can be characterized by one group HARQ result to multiple target HARQ results, improve the efficiency of HARQ feedback in MTC system, reduce the consumption of PUCCH resource, and be advantageous to save the power of MTC device.

Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.

An information transmission method and an apparatus are provided. The method includes: determining, based on a first parameter, a first resource for transmitting first control information, where the first control information indicates that a physical uplink shared channel resource is to be used or not used in a configured grant period, and the first parameter includes a number of bits of the first control information, or the first parameter includes a number of bits of the first control information and a second resource for transmitting second control information; and transmitting the first control information on the first resource. The second control information includes at least one of first information and channel state information CSI, and the first information includes at least one of hybrid automatic repeat request HARQ and configured grant uplink control information CG-UCI.

Embodiments of the present application disclose a carrier switching method and device, receiving a carrier switching indication, determining a target carrier of a physical uplink control channel from candidate carriers according to the carrier switching indication, wherein the carrier switching indication comprises at least one of the following: an added field in downlink control information DCI, multiplexing physical uplink control channel resource indication PRI, multiplexing hybrid automatic repeat request HARQ feedback time indication, multiplexing uplink / supplementary uplink UL / SUL indication, multiplexing carrier indication in downlink control information DCI, so that the terminal device can perform carrier switching according to the indication, ensuring the reliability and feedback efficiency of HARQ-ACK transmission, reducing interference, and improving load balancing.

A protocol data unit generation method, a configuration method, an apparatus, and an electronic device are disclosed. 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.

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.

This application provides a hybrid automatic repeat request HARQ feedback information transmission method and an apparatus, to flexibly determine a feedback manner type. The method includes: A first terminal device obtains a transmission resource, determines, based on a first correspondence, a feedback manner type corresponding to a current transmission, performs data packet assembly processing based on the feedback manner type, and sends the data packet by using the transmission resource.