The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 21, 2020

Filed:

Jan. 12, 2018
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Mingchao Li, Beijing, CN;

Jiezuo Zhu, Beijing, CN;

Jun Zhang, Beijing, CN;

Guanglin Han, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 56/00 (2009.01); H04W 72/02 (2009.01); H04W 92/18 (2009.01);
U.S. Cl.
CPC ...
H04W 56/0015 (2013.01); H04W 72/02 (2013.01); H04W 92/18 (2013.01);
Abstract

A synchronous communication method is provided. The method includes: obtaining, by a first terminal, first configuration information, where the first configuration information includes a first parameter; determining, by the first terminal according to a global navigation satellite system (GNSS) clock, a transmission timeslot corresponding to a current moment in a device-to-device (D2D) communications system; determining, by the first terminal according to the transmission timeslot and the first parameter, whether the current moment is a synchronization-information-sending moment; if the current moment is the synchronization-information-sending moment, sending, by the first terminal, sidelink synchronization information at the synchronization-information-sending moment, where the sidelink synchronization information carries indication information, the sidelink synchronization information is used to synchronize a second terminal with the first terminal, and the indication information is used to indicate, to the second terminal, that the first terminal is a synchronization source that uses the GNSS clock.


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