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1. (WO2018205428) INITIAL ACCESS METHOD AND DEVICE

Pub. No.:    WO/2018/205428    International Application No.:    PCT/CN2017/095310
Publication Date: Fri Nov 16 00:59:59 CET 2018 International Filing Date: Tue Aug 01 01:59:59 CEST 2017
IPC: H04W 72/08
H04W 74/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: XU, Kai
徐凯
ZHUANG, Hongcheng
庄宏成
Title: INITIAL ACCESS METHOD AND DEVICE
Abstract:
An initial access method and device, which are used for solving the problem in existing technical solutions for initial access by a terminal device of the time for an initial access process of the terminal device being relatively long. The method comprises: a terminal device sends random access preambles to a network device on a plurality of uplink beams; the network device screens out a random access preamble having the best signal quality from the random access preambles received on the plurality of uplink beams, and determines the uplink beam of the random access preamble having the best signal quality received thereby to be the best uplink beam of the terminal device, so that the terminal device may always send other subsequent uplink messages in the initial access process to the network device on said best uplink beam.