11 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.

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.

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 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.

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.

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.