US 11,722,274 B2
Method for transmitting reference signal, method for receiving reference signal, base station, and user equipment
Mingju Li, Beijing (CN); and Ming Zhang, Beijing (CN)
Assigned to Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
Appl. No. 17/259,540
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
PCT Filed Jul. 11, 2018, PCT No. PCT/CN2018/095307
§ 371(c)(1), (2) Date Jan. 11, 2021,
PCT Pub. No. WO2020/010550, PCT Pub. Date Jan. 16, 2020.
Prior Publication US 2021/0167918 A1, Jun. 3, 2021
Int. Cl. H04L 5/00 (2006.01); H04W 56/00 (2009.01)
CPC H04L 5/0048 (2013.01) [H04W 56/001 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for transmitting a reference signal, applied to a base station, comprising:
obtaining a plurality of possible transmission positions of the reference signal according to a position where a setting signal is located, wherein the setting signal is located in the reference signal and is used to determine an index of the reference signal, and the plurality of possible transmission positions comprise an initial possible transmission position of the reference signal;
performing channel detection before transmitting the reference signal at each of the possible transmission positions; and
transmitting, in response to detecting that a channel is idle, the reference signal at a corresponding possible transmission position;
wherein the reference signal comprises a synchronization signal block (SSB) or a signal comprising the SSB, and the setting signal comprises PBCH in the SSB; and
wherein obtaining the plurality of possible transmission positions of the reference signal according to the position where the setting signal for determining the index of the reference signal is located comprises:
performing symbol-level cyclic shifts on other signals than the setting signal included in a main reference signal according to the position where the setting signal is located, to obtain the plurality of possible transmission positions of the reference signal, wherein the position of the setting signal in the plurality of possible transmission positions and in the main reference signal is the same, and the main reference signal corresponds to the initial possible transmission position of the reference signal.