Search International and National Patent Collections

1. (WO2017041293) D2D DATA TRANSMISSION METHOD, DEVICE AND SYSTEM

Pub. No.:    WO/2017/041293    International Application No.:    PCT/CN2015/089439
Publication Date: Fri Mar 17 00:59:59 CET 2017 International Filing Date: Sat Sep 12 01:59:59 CEST 2015
IPC: H04W 40/22
H04W 40/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LI, Xiaocui
李晓翠
XU, Kai
徐凯
Title: D2D DATA TRANSMISSION METHOD, DEVICE AND SYSTEM
Abstract:
Provided are a D2D data transmission method, device and system, which are used for solving the problem in the prior art of how to find a UE within network coverage as a relay UE to transmit information about a UE outside the network coverage to a base station. The method comprises: a source UE sending a first message to n candidate UEs, wherein the first message is used to indicate that the source UE has data which needs to be transmitted to a base station, the source UE is a UE outside network coverage of the base station, and the n candidate UEs are UEs within the network coverage of the base station; the source UE receiving n second messages from the n candidate UEs, wherein each candidate UE in the n candidate UEs sends a second message to the source UE, and the second message comprises a user identifier of each candidate UE and/or state information about each candidate UE; and the source UE determining, according to the user identifier of each candidate UE and/or the state information about each candidate UE, a relay UE from the n candidate UEs, and transmitting the data to the base station via the relay UE. The present invention is applicable to the field of wireless communications.