Patent ID: 9462567
Filing Date: 2016-10-04
CPC Classification: H04W

Claim Text:
1. A core network (CN) device for network-assisted device proximity detection comprising a mobility management entity (MME), the core network device having computer circuitry configured to: store user equipment (UE) information that includes one or more of discovery permissions, application identifiers, hardware identifiers, or a location history; calculate a distance between two UEs; assist the two UEs with direct device discovery based on the calculated distance; receive a location deferred request (LDR) message from a LoCation Services (LCS) client; and send a last location estimate of the UE with a time stamp or age of the last location estimate to the LCS client directly or via a gateway mobile location center (GMLC) when the UE is in an idle mode and operating in an active-idle sensitivity mode.