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1. (WO2018219257) METHOD AND DEVICE FOR COMMUNICATION

Pub. No.:    WO/2018/219257    International Application No.:    PCT/CN2018/088769
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 29 01:59:59 CEST 2018
IPC: H04W 72/00
H04L 5/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: HUANG, Huang
黄煌
GAO, Kuandong
高宽栋
YAN, Mao
颜矛
Title: METHOD AND DEVICE FOR COMMUNICATION
Abstract:
The present application is related to the field of communications and solves the problem in the prior art in which some broadcast signals could not be modulated and a terminal device could not access a base station. Provided are a method and device for communication. The method comprises: generating a demodulation reference signal (DMRS) sequence of a broadcast signal on the basis of a pseudo-random sequence c(m), the DMRS sequence being related to the number (NRB) of resource blocks (RB) of the broadcast signal and to the number (nRE) of resource elements (RE) that the DMRS sequence occupies in one RB; and mapping the DMRS sequence to one or more symbols. Then, a base station transmits to the terminal device one or more symbols to which a DMRS sequence is mapped; the terminal device receives the DMRS sequence transmitted by the base station and generates a DMRS sequence on the basis of the described method, and if the generated DMRS matches the DMRS sequence received from the base station and meets a requirement, then demodulates data in the broadcast signal on the basis of the DMRS sequence.