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Method and device for sending and receiving feedback information

A technology of feedback information and indication information, applied in wireless communication, signaling allocation, transmission path sub-channel allocation, etc., can solve the problem of large waste of resources

Active Publication Date: 2020-03-10
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the network side receives the NACK fed back by the terminal device, it will continue to use the multiple HARQ processes to retransmit the data, which is a big waste of resources.

Method used

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  • Method and device for sending and receiving feedback information
  • Method and device for sending and receiving feedback information
  • Method and device for sending and receiving feedback information

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Experimental program
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Embodiment Construction

[0059] The technical solution in this application will be described below with reference to the accompanying drawings.

[0060] see figure 1 , figure 1 is an architectural diagram of the wireless communication system 100 applicable to this application. Such as figure 1 As shown, the network device 101 may include a next generation base station (next generation NodeB, gNB) or a transmission reception point (transmission reception point, TRP). For example, in order to improve the reliability of the terminal equipment, the gNB may provide services for the terminal equipment through one or more TRPs. Each TRP can perform air interface transmission with the terminal device through one or more beams, and each beam can be an omnidirectional beam (that is, a 360-degree beam) or a directional beam. One or more TRPs can serve a terminal device at the same time. Such as figure 1 As shown, gNB communicates wirelessly with terminal devices through multiple TRPs. For example, the gNB...

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PUM

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Abstract

The invention provides a method and device for sending and receiving feedback information. Resource waste in the data retransmission process can be reduced. The method comprises the following steps that: terminal equipment receives association relationship indication information from network equipment, wherein the association relationship indication information is used for indicating a plurality of transmission units with an association relationship or a plurality of hybrid automatic repeat request (HARQ) processes with an association relationship; the terminal equipment receives data of a plurality of transmission units or a plurality of HARQ processes with an association relationship from the network equipment according to the association relationship indication information; the terminalequipment successfully receives data of one transmission unit in the plurality of transmission units or data of one HARQ process in the plurality of HARQ processes; and the terminal equipment sends apositive response to the network device.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method and device for sending and receiving feedback information. Background technique [0002] Ultra reliable and low latency communication (URLLC) is an important application scenario in the next generation communication system, which has relatively strict requirements for low latency and high reliability of data transmission. When high-frequency technology is used to transmit URLLC service data, beamforming technology is used to limit the energy of the transmitted signal to a certain beam direction, which can improve signal reception efficiency. However, beamforming technology also reduces the range of signal transmission. Especially when the terminal device moves out of the coverage of the antenna beam, the communication between the terminal device and the network device will be interrupted, and beam failure recovery needs to be performed. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1812H04L5/0055H04L1/1822H04L1/1887H04L1/1854H04L1/1819H04L1/1896H04L1/189H04L1/0041H04B7/086H04B7/0617H04W72/0453
Inventor 黄煌高宽栋管鹏樊波陈雷
Owner CHENGDU HUAWEI TECH