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:
Feb. 06, 2018

Filed:

Jan. 17, 2014
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Nilesh Nilkanth Khude, Bridgewater, NJ (US);

Sebastien Henri, Paris, FR;

Vincent Douglas Park, Budd Lake, NJ (US);

Junyi Li, Chester, NJ (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 24/00 (2009.01); H04W 56/00 (2009.01); H04W 4/02 (2009.01); H04W 4/06 (2009.01); H04W 72/02 (2009.01); H04W 72/04 (2009.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04W 56/001 (2013.01); H04W 4/023 (2013.01); H04W 4/06 (2013.01); H04W 56/0015 (2013.01); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 88/06 (2013.01);
Abstract

A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling timing source selection and deselection in a decentralized manner for distributed D2D synchronization in densely populated communications systems. In an example, a communications device, functioning in a non-timing source (TS) mode, is equipped to receive a request for timing information during a synchronization channel. The communications device may further be equipped to determine whether to switch to a TS mode based on a selection utility metric value. In another example, a communications device, functioning in a TS mode, is equipped to transmit a TIB during a synchronization channel, and determine whether to switch to a non-TS mode based on a deselection utility metric value. In the TS mode, the UE is configured to transmit a TIB, while in the non-TS mode the UE is configured not to transmit the TIB.


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