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Resource allocation method, device and system

A resource allocation and resource technology, applied in the communication field, can solve the problem of not being able to know the feedback of the receiving end, the conflict of the ACK and/or NACK feedback of the receiving end, etc.

Active Publication Date: 2020-10-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing HARQ feedback mechanism of multicast communication, multiple receivers may feed back ACK and / or NACK on the same resource, resulting in ACK and / or NACK feedback collisions at each receiver, and the sender cannot know which The receiving end feeds back ACK, which receiving end feeds back NACK

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  • Resource allocation method, device and system
  • Resource allocation method, device and system
  • Resource allocation method, device and system

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Embodiment Construction

[0064] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, a brief introduction of related technologies or names of the present application is given as follows.

[0065] First, multicast:

[0066] In the embodiment of the present application, multiple terminal devices may form a multicast group. Wherein, the multicast group address is used as the destination address, the source that sends the message is called the data sender, and the multicast user that receives the multicast data is called the data receiver. For example, it is assumed that terminal members in a local area network (local area network, LAN) group include terminal 1, terminal 2, terminal 3, terminal 4, terminal 5, and terminal 6. Taking Terminal 1 as the data sender, and Terminal 3, Terminal 5, and Terminal 6 as data receivers to form a multicast group as an example, the corresponding communication schematic diagram can be as follows figure 1 As s...

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Abstract

The embodiment of the invention provides a resource allocation method, device and system, which can be applied to a system related to vehicle driving, such as an automatic driving system or a V2X system. The method comprises the following steps that first terminal equipment acquires a plurality of indexes; and the first terminal equipment sends first indication information and the plurality of indexes to second terminal equipment; the second terminal equipment determines HARQ feedback resources corresponding to the second terminal equipment according to the first indication information, or thesecond terminal equipment determines HARQ feedback resources corresponding to other indexes except the first index. The first indication information is used for indicating a first index associated with the second terminal equipment. Any one index in the plurality of indexes is respectively associated with one terminal equipment in the first multicast group; each index in the plurality of indexesis used for indicating HARQ feedback resources on a corresponding SL, and the HARQ feedback resources indicated by different indexes are different. Based on the scheme, the problem of feedback conflicts of a plurality of data receiving ends can be solved.

Description

technical field [0001] The present application relates to the communication field, and in particular to a resource configuration method, device and system. Background technique [0002] Vehicle to everything (V2X) refers to the interconnection between vehicles and the outside world through devices configured on vehicles (such as sensors, vehicle terminals, etc.) and various communication technologies, such as vehicles and vehicles, vehicles and people, vehicles and roadsides. The interconnection and communication between infrastructure, vehicles and networks can be used in car sharing, intelligent network driving (IND) and other fields. [0003] In new radio (new radio, NR) V2X, it can support three communication methods: unicast, multicast and broadcast. Multicast is a communication method in which one sender sends data to multiple receivers. In NR V2X, multicast communication Support the hybrid automatic repeat request (HARQ) feedback mechanism, that is, multiple receiver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1812H04L5/0055H04L1/18H04L5/00H04W72/04
Inventor 李翔宇王君魏冬冬肖潇戴明增
Owner HUAWEI TECH CO LTD