A hybrid automatic repeat request response method and device

A technology of hybrid automatic retransmission and request response, which is applied in the direction of transmission system, digital transmission system, multiple use of transmission path, etc., and can solve the problem that network equipment and terminal equipment cannot communicate with HARQ-ACK information

Active Publication Date: 2022-05-24
CHINA ACADEMY OF INFORMATION & COMM
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Problems solved by technology

[0008] This application proposes a hybrid automatic repeat request response method and device to solve the problem that the network device and the terminal device cannot communicate on the delayed transmission of HARQ-ACK information. In particular, the gNB and UE provided by the present invention determine "other" PUCCH / PUSCH resource technical solution to ensure that gNB and UE determine the same target channel

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  • A hybrid automatic repeat request response method and device
  • A hybrid automatic repeat request response method and device
  • A hybrid automatic repeat request response method and device

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[0052] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0053] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0054] figure 1 Schematic diagram of cancellation of HARQ-ACK feedback corresponding to PDSCH configured for SPS in TDD system. As shown in the figure, for example, the period of...

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Abstract

This application discloses a hybrid automatic repeat request response method, which is used to delay sending the HARQ-ACK when the HARQ-ACK feedback of the PDSCH configured by the SPS is canceled due to a configuration conflict, and the canceled HARQ-ACK is originally scheduled The PUCCH is located in the basic time unit; the earliest candidate channel is used as the target channel to carry delayed HARQ-ACK; the candidate channel includes at least one of the first candidate channel and the second candidate channel: the first candidate channel Channel selection is to take consecutive N in sequence from the first candidate symbol in the basic time unit or subsequent time unit 1 A channel composed of candidate symbols; the second candidate channel is at least one of the following channels in the basic time unit or subsequent time units: configured to transmit SPS HARQ-ACK, CSI or The PUCCH of the HARQ-ACK of the PDSCH is dynamically scheduled, and the PUSCH of the semi-persistent scheduling. The present application also includes a device for applying the method. The present application solves the problem that a network device and a terminal device cannot communicate with respect to delayed transmission of HARQ-ACK information.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a hybrid automatic repeat request response method and device. Background technique [0002] In the NR system, the hybrid automatic repeat request acknowledgment HARQ mechanism is used to improve the efficiency of data transmission. At the MAC layer, each cell has a HARQ entity, and the uplink and downlink are independent. Each HARQ entity includes multiple parallel HARQ processes. The terminal equipment UE instructs the physical layer to send acknowledgment ACK or non-acknowledgement NACK information according to the decoding result. ACK and NACK information are collectively referred to as hybrid automatic repeat request acknowledgment information HARQ-ACK. The whole of the HARQ-ACK information fed back by the UE on one HARQ feedback resource (PUCCH or PUSCH) is called a HARQ-ACK codebook. [0003] Semi-persistent scheduling (SPS) (Semi-Persistent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L5/00H04W72/04H04W72/12
CPCH04L1/1812H04L5/0055H04W72/0446H04W72/23
Inventor 闫志宇王志勤杜滢刘晓峰焦慧颖沈霞
Owner CHINA ACADEMY OF INFORMATION & COMM
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