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Hybrid automatic repeat request confirmation harq-ack resource determination method

A technology of hybrid automatic retransmission and request confirmation, applied in the field of communication, can solve the problem of inability to determine PUCCH resources

Active Publication Date: 2022-03-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the CoMP mechanism is supported, the same PDCCH detection opportunity may include multiple DCIs, so the terminal device cannot determine which PUCCH resource indicated by the DCI is actually used to carry the HARQ-ACK feedback bits

Method used

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  • Hybrid automatic repeat request confirmation harq-ack resource determination method
  • Hybrid automatic repeat request confirmation harq-ack resource determination method
  • Hybrid automatic repeat request confirmation harq-ack resource determination method

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Experimental program
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Embodiment Construction

[0110] The technical solution in this application will be described below with reference to the accompanying drawings.

[0111] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (universal mobile telecommunication system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future fifth generation (5th generation, 5G) system or new Wireless (new ra...

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Abstract

The present application provides a hybrid automatic repeat request confirmation HARQ-ACK resource determination method and device, including: determining at least one PDCCH detection opportunity, and the DCI-scheduled HARQ-ACK feedback bits detected on the at least one PDCCH detection opportunity are carried on On the same PUCCH resource; determine the target DCI according to the index value of the first parameter corresponding to the first DCI, wherein the first DCI is located at the first PDCCH detection opportunity, and the first PDCCH detection opportunity is the last one of at least one PDCCH detection opportunity For PDCCH detection timing, the first parameter is a control resource set or a control resource set group, and the target DCI indicates the PUCCH resource. Through the above technical solution, the network device can control the PUCCH resource used by the HARQ-ACK feedback of the terminal device, improve uplink transmission performance, and avoid uplink transmission interference.

Description

technical field [0001] The present application relates to the communication field, in particular to a hybrid automatic repeat request acknowledgment HARQ-ACK resource determination method in the communication field. Background technique [0002] In the downlink transmission, the terminal device can communicate with one or more network devices at the same time, that is, the terminal device receives multiple Physical Downlink Shared Channels (PDSCH) at the same time. This transmission mode is called multi-site coordinated transmission (Coordinated Multiple Points Transmission / Reception, CoMP). Among them, the network devices in the cooperative set can be connected to different control nodes, and information can be exchanged between each control node, such as exchanging scheduling policy information to achieve the purpose of cooperative transmission, or the network devices in the cooperative set are all connected to the same control node. Each network device respectively indi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12
CPCH04L5/0053H04L5/0055H04L5/0008H04W72/20H04L1/1854H04L1/1822H04L1/1896H04L1/1861H04L1/1812H04W24/08H04W72/0446H04W72/1273H04W72/23
Inventor 刘显达刘鹍鹏薛丽霞高翔张旭
Owner HUAWEI TECH CO LTD