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.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Nov. 12, 2013
Applicant:
Blackberry Limited, Waterloo, CA;
Inventors:
Assignee:
BlackBerry Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 76/02 (2009.01); H04W 72/08 (2009.01); H04W 76/04 (2009.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
H04W 76/023 (2013.01); H04W 72/08 (2013.01); H04W 76/043 (2013.01); H04W 4/005 (2013.01);
Abstract
Systems, methods, and apparatuses for initiating device-to-device (D2D) communication in wireless communication networks are provided. Based on received downlink or uplink signal qualities, a two-stage process, that is, a first stage of information request and a second stage of actual information transfer, may be used to initiate the D2D communication. Multiple thresholds, timers, and/or counters may be used in connection with the two-stage process. The two-stage process reduces unnecessary signaling overhead for initiating the D2D communication.