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Communication method and device for sidelink

A communication method and link technology, applied in the field of communication, can solve the problem of no group member multicast message feedback information, etc., and achieve the effect of sending

Pending Publication Date: 2021-07-13
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During multicast communication, there will be a group head, and the rest of the terminal devices are group members. The group head can send multicast messages to group members, but there is currently no way for group members to send feedback information for the multicast message to the group head. Technical solutions

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  • Communication method and device for sidelink
  • Communication method and device for sidelink
  • Communication method and device for sidelink

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of 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.

[0042] The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, 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 ...

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Abstract

The embodiment of the invention relates to a communication method and device for a sidelink. The method comprises the following steps that a first terminal device obtains a first transmission resource; the first terminal device sends first feedback information to the second terminal device by using the first transmission resource, and a time unit where the first transmission resource is located is not used for the first terminal device to transmit data to at least one third terminal device or the second terminal device, wherein the first terminal device, the second terminal device and the third terminal device belong to a first group. According to the communication method and device for the sidelink in the embodiment of the invention, the feedback information can be sent in multicast communication.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a communication method and device for sidelinks. Background technique [0002] The Internet of Vehicles system adopts a sidelink (Sidelink, SL) transmission technology based on Device to Device (D2D), which communicates with the traditional Long Term Evolution (LTE) system through the base station The way of receiving or sending is different. The Internet of Vehicles system adopts the method of direct communication from terminal equipment to terminal equipment, so it has higher spectral efficiency and lower transmission delay. [0003] In the New Radio (NR) system, the vehicle networking system can support multiple transmission methods, such as unicast (Unicast), groupcast (Groupcast) or broadcast (Broadcast). [0004] During multicast communication, there will be a group head, and the rest of the terminal devices are group members. The group head can send multicast m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04L5/00H04W4/08H04W72/00H04W72/08H04W72/54
CPCH04L1/0006H04L1/0023H04L1/1812H04L5/0053H04L5/0096H04W4/08H04W72/30H04W72/542H04W4/46H04W4/06H04W4/40H04W72/02H04W72/121H04L1/1854H04W8/26H04W8/186H04W72/0446H04W92/18H04W72/51H04W72/20H04W8/22
Inventor 赵振山卢前溪林晖闵
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD