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1. (WO2018127085) SYNCHRONOUS SIGNAL TRANSMISSION METHOD, DETECTION METHOD, BASE STATION AND USER EQUIPMENT

Pub. No.:    WO/2018/127085    International Application No.:    PCT/CN2018/071320
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Fri Jan 05 00:59:59 CET 2018
IPC: H04L 27/26
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: QU, Bingyu
曲秉玉
LIU, Jianqin
刘建琴
Title: SYNCHRONOUS SIGNAL TRANSMISSION METHOD, DETECTION METHOD, BASE STATION AND USER EQUIPMENT
Abstract:
Disclosed are a synchronous signal transmission method, a detection method, a base station and a user equipment. A base station acquires a first root sequence index from a set composed of T root sequence indexes, T being a positive integer; the first root sequence index is the root sequence index of a ZC sequence, the length of the ZC sequence is N; any one root sequence index u in the set composed of the T root sequence indexes satisfies the following root selection conditions: (a×u)mod N=1, or(a×u)mod N=N-1, where N is an integer greater than 1, u is an integer, and a is an element in a subset of a root selection parameter set {3, 4, 5, 6, 7, 8}; and any two root sequence indexes b and c in the set composed of the T root sequence indexes satisfy the condition of: b≠c(modN); the base station generates a synchronous signal sequence with a length M according to the first root sequence index; and the base station maps the synchronous signal sequence with a length M onto M sub-carriers and transmits same.