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1. (WO2017031816) DATA TRANSMISSION METHOD, RELEVANT DEVICE AND SYSTEM

Pub. No.:    WO/2017/031816    International Application No.:    PCT/CN2015/091885
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Oct 14 01:59:59 CEST 2015
IPC: H04W 88/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: OUYANG, Guowei
欧阳国威
JIN, Hui
金辉
YI, Qiang
衣强
HE, Yue
何岳
Title: DATA TRANSMISSION METHOD, RELEVANT DEVICE AND SYSTEM
Abstract:
Provided are a data transmission method, device and system. The method comprises: a relay device receiving first downlink data sent from a gateway, and acquiring a first service identifier of the first downlink data; obtaining first PPP information corresponding to the first service identifier according to a first mapping relationship between the service identifier and data priority PPP information; and the relay device forwarding the first downlink data to a remote device according to the first PPP information. The PPP information about a downlink data packet can be acquired accurately and quickly, and the rate and accuracy rate of downlink data transmission are effectively improved.