US 11,910,342 B2
System and methods for controlling out-of-network D2D communications
Philippe Sartori, Plainfield, IL (US); Vipul Desai, Palatine, IL (US); Mazin Al-Shalash, Frisco, TX (US); Anthony C. K. Soong, Plano, TX (US); George Calcev, Hoffman Estates, IL (US); and Brian Classon, Beijing (CN)
Assigned to Futurewei Technologies, Inc., Plano, TX (US)
Filed by Futurewei Technologies, Inc., Plano, TX (US)
Filed on Aug. 24, 2021, as Appl. No. 17/410,846.
Application 17/410,846 is a continuation of application No. 16/197,026, filed on Nov. 20, 2018, granted, now 11,102,741.
Application 16/197,026 is a continuation of application No. 15/675,463, filed on Aug. 11, 2017, granted, now 10,178,701, issued on Jan. 8, 2019.
Application 15/675,463 is a continuation of application No. 14/274,697, filed on May 10, 2014, granted, now 9,736,874, issued on Aug. 15, 2017.
Claims priority of provisional application 61/822,119, filed on May 10, 2013.
Prior Publication US 2021/0385775 A1, Dec. 9, 2021
Int. Cl. H04W 56/00 (2009.01); H04W 4/70 (2018.01); H04W 8/00 (2009.01); H04W 76/14 (2018.01)
CPC H04W 56/0015 (2013.01) [H04W 4/70 (2018.02); H04W 8/005 (2013.01); H04W 56/002 (2013.01); H04W 76/14 (2018.02)] 27 Claims
OG exemplary drawing
 
15. A user equipment (UE) comprising:
at least one processor; and
a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions to cause the UE to perform operations including:
receiving a discovery signal identifying a second UE;
determining a signal quality of the discovery signal;
configuring the UE as a master device or a slave device for device-to-device (D2D) communications with the second UE in accordance with the discovery signal; and
transmitting a second discovery signal, the second discovery signal indicating a timing reference between the UE and the second UE in accordance with the signal quality.