Network-level device proximity detection
First Claim
Patent Images
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.
3 Assignments
0 Petitions
Accused Products
Abstract
A technology for network-level device proximity detection is disclosed. In an example, core network (CN) device can include computer circuitry configured to: Store user equipment (UE) information; calculate proximity between two UEs; and assist the two UEs with direct device discovery based on the calculated proximity. The core network device can include a proximity services (ProSe) server, a gateway mobile location center (GMLC), an evolved serving mobile location center (E-SMLC), or a mobility management entity (MME).
-
Citations
30 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 30)
-
-
8. A proximity services (ProSe) server for network-assisted device proximity detection, comprising:
-
a transceiver to; send a location deferred request (LDR), wherein the LDR is sent periodically or based on a change of area event, wherein the change of area event includes an event when the UE enters or exits a specified geographic area, or the LDR includes a specified periodicity for a mobility management entity (MME) to perform a location update; receive a location update including a location of a user equipment (UE); and send an active-idle mode sensitivity request for the UE, wherein the MME waits until the UE is in active mode before requesting a location update; and a processor to; calculate a distance between two UEs based on the location update. - View Dependent Claims (9, 10)
-
-
11. A core network (CN) device for network-assisted device proximity detection comprising a mobility management entity (MME), wherein the core network device has 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 proximity; receive an active-idle mode sensitivity request, wherein the MME waits to request a location update from the UE until the UE is in an active mode; send a location deferred request (LDR) periodically or based on a change of area event, wherein the change of area event includes an event when a UE enters or exits a specified geographic area; and send the location deferred request that includes the immediate request type to the UE when the UE is in an active mode. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. A proximity services (ProSe) server for network-assisted device proximity detection in communication with a mobility management entity (MME), the ProSe server comprising:
-
a transceiver to; send a location deferred request (LDR); and receive a location update including a location of a user equipment (UE); 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; and a processor to; calculate a distance between two UEs based on the location update. - View Dependent Claims (18, 19, 20)
-
-
21. A method for network assisted device proximity detection at a mobility management entity (MME), comprising:
-
receiving, from a location estimation client, a location request to monitor a user equipment (UE); receiving a location deferred request (LDR) message; sending a location update including UE rough location information to the location estimation client when the UE is monitored by the MME, wherein the UE rough location information includes a cell identifier (ID) or a registered tracking area ID for the cell or tracking area in which the UE is located; and sending a latest location estimate of the UE with a time stamp or age of the last location estimate to the location estimation client when the UE is in an idle mode and operating in an active-idle sensitivity mode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
-
Specification