| US 9,813,842 B2 | ||
| Methods, apparatuses and systems directed to proximity services (ProSe) direct discovery | ||
| Saad Ahmad, Montreal (CA); Amir Helmy, Vancouver (CA); Guanzhou Wang, Brossard (CA); Loic Canonne-Velasquez, Verdun (CA); Ulises Olvera-Hernandez, Montreal (CA); and Mahmoud Watfa, Saint Leonard (CA) | ||
| Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US) | ||
| Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US) | ||
| Filed on Apr. 6, 2016, as Appl. No. 15/92,559. | ||
| Claims priority of provisional application 62/143,681, filed on Apr. 6, 2015. | ||
| Claims priority of provisional application 62/162,437, filed on May 15, 2015. | ||
| Prior Publication US 2016/0295347 A1, Oct. 6, 2016 | ||
| Int. Cl. H04B 7/00 (2006.01); H04W 4/00 (2009.01); H04W 8/00 (2009.01) | ||
| CPC H04W 4/005 (2013.01) [H04W 8/005 (2013.01)] | 36 Claims |
| 1. A method implemented in a first proximity services (ProSe) function serving a discoverer user equipment (UE), the method
comprising:
receiving, from the discoverer UE, a first discovery request message including a ProSe application identifier and an indication
indicating Model B discovery;
transmitting, to a second ProSe function configured to serve a discoveree UE, a second discovery request message requesting
a ProSe application code corresponding to the ProSe application identifier;
determining that no valid ProSe application code corresponding to the ProSe application identifier is available based on any
of:
not receiving a response to the second discovery request message;
not receiving any valid ProSe application code corresponding to the ProSe application identifier in response to the second
discovery request message; and
receiving, in response to the second discovery request message, an indication indicating that no valid ProSe application code
corresponding to the ProSe application identifier is available; and
transmitting, to the discoverer UE, a reject-type discovery response message.
|