公开(公告)号：US11026197B2

公开(公告)日：2021-06-01

申请号：US16530460

申请日：2019-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohu You ,  Mao Wang ,  Jun Zhang ,  Yalin Liu ,  Hengjie Hu ,  Jun Zou

IPC: H04W56/00 ,  H04W72/04 ,  H04L5/00

Abstract: A communication method includes: determining, by a first device, a first synchronization signal, where the first synchronization signal is used by a second device for symbol timing alignment and frequency synchronization; and sending, by the first device, the first synchronization signal on each group of subcarriers of M groups of subcarriers, where M is a positive integer greater than or equal to 2. According to the communication method in this application, the first device sends the first synchronization signal on each group of subcarriers of a plurality of groups of subcarriers, so that the second device can select, based on a reception capability of the second device, an appropriate bandwidth to receive the first synchronization signal.

公开(公告)号：US20190357162A1

公开(公告)日：2019-11-21

申请号：US16530460

申请日：2019-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohu You ,  Mao Wang ,  Jun Zhang ,  Yalin Liu ,  Hengjie Hu ,  Jun Zou

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: This application provides a communication method and device. The method includes: determining, by a first device, a first synchronization signal, where the first synchronization signal is used by a second device for symbol timing alignment and frequency synchronization; and sending, by the first device, the first synchronization signal on each group of subcarriers of M groups of subcarriers, where M is a positive integer greater than or equal to 2. According to the communication method in this application, the first device sends the first synchronization signal on each group of subcarriers of a plurality of groups of subcarriers, so that the second device can select, based on a reception capability of the second device, an appropriate bandwidth to receive the first synchronization signal. In this way, a device with wideband reception performance and a device with narrowband reception performance can be supported.