HARQ-ACK transmission method and device

By receiving scheduling information through the terminal and feeding back a second HARQ-ACK in the same time unit, the problem of HARQ-ACK retransmission being unable to be effectively implemented is solved, HARQ-ACK retransmission on PUCCH/PUSCH resources is implemented, and the effectiveness of the communication system is improved.

CN115701014BActive Publication Date: 2025-09-19VIVO MOBILE COMM CO LTD
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Patent Information

Application Number
CN202110875678.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-30
Publication Date
2025-09-19
Estimated Expiration
2041-07-30

AI Technical Summary

Technical Problem

In the prior art, HARQ-ACK retransmission cannot be effectively implemented. In particular, it is unclear how to trigger HARQ-ACK retransmission on PUCCH/PUSCH resources through DCI.

Method used

The terminal receives the scheduling information sent by the network side device, determines that the first HARQ-ACK is triggered based on the scheduling information, and feeds back the second HARQ-ACK in the same time unit to achieve retransmission of the historical HARQ-ACK, and triggers HARQ-ACK retransmission on the PUCCH/PUSCH resources through the enhanced type 3 codebook or DCI.

Benefits of technology

It ensures the effective implementation of HARQ-ACK retransmission, improves the effectiveness of the communication system, and meets the high reliability, low latency and large bandwidth requirements of different business scenarios.

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Abstract

The present application discloses a HARQ-ACK transmission method and apparatus, which belongs to the field of communication technology. The HARQ-ACK transmission method of an embodiment of the present application includes: a terminal receives scheduling information sent by a network-side device; when the terminal determines that a first HARQ-ACK is triggered based on the scheduling information, and determines that a second HARQ-ACK is fed back in the same time unit as the first HARQ-ACK, the terminal feeds back the first HARQ-ACK and / or the second HARQ-ACK to the network-side device, wherein the second HARQ-ACK is a first feedback of HARQ-ACK of one or more PDSCHs and / or PDCCHs; and wherein the first HARQ-ACK includes a retransmission of a historical HARQ-ACK.
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