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:
Jun. 24, 2025

Filed:

Nov. 15, 2019
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Jose Angel Leon Calvo, Aachen, DE;

Congchi Zhang, Shanghai, CN;

Shehzad Ali Ashraf, Aachen, DE;

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

A D2D communication device sends a synchronization signal to enable synchronization of one or more other D2D communication devices. The D2D communication device provides the synchronization signal with an indication that the synchronization signal is derived from a D2D communication device configured as a synchronization master which, when not being synchronized to an external synchronization reference, has a higher priority to be used as a synchronization source than other D2D communication devices not synchronized to an external synchronization reference.


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