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1. (WO2018050101) LINK ESTABLISHING METHOD AND DEVICE AND WIRELESS COMMUNICATION SYSTEM

Pub. No.:    WO/2018/050101    International Application No.:    PCT/CN2017/101920
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: H04W 76/02
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: YU, Haifeng
于海凤
XIONG, Xin
熊新
Title: LINK ESTABLISHING METHOD AND DEVICE AND WIRELESS COMMUNICATION SYSTEM
Abstract:
Disclosed are a link establishing method, device and system. By adopting the technical method and device of the present application, a terminal device can initiate, through a normally functioning radio resource control (RRC) link, a modification on an RRC link having a radio link failure (RLF) or a degraded channel quality, such that the terminal device maintains an RRC link with at least two network devices at the same time, thereby timely replacing a failed link or an RRC link having a degraded channel quality while ensuring the reliability of an RRC. The method comprises: a terminal device transmitting a request for modifying a first link to a first network device through a first RRC link; the terminal device receiving an RRC link modification message and a transmission parameter transmitted by the first network device through the first RRC link; and the terminal device establishing a target RRC link with a target network device according to the transmission parameter and maintaining the target RRC link and the first RRC link at the same time.