# US 2014/0192739 A1 · Method of Handling Proximity Service in Wireless Communication System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192739 A1 - Document ID: US20140192739A1 - Status: Published application - Kind: A1 - Application number: 14/150,732 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-08 - Assignees: HTC Corporation - Applicants: HTC Corporation - Inventors: Ching-Yu Liao - Web page: https://patentgrep.com/patent/US20140192739A1 ## CPC - H04W 60/04: using triggered events - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04L 67/51: Discovery or management thereof, e.g. service location protocol [SLP] or web services - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 48/12: using downlink control channel - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method of handling proximity service (ProSe) in a wireless communication system is disclosed. The method includes transmitting, by a mobile device of the wireless communication system, a request message to one of the plurality Mobility Management Entities (MMEs) of the wireless communication system, for requesting a proximity service (ProSe) service; and indicating, by the one of the plurality of MMEs, to the mobile device a ProSe capability of a system network of the wireless communication system in an accept message. ## Claims ### Claim 1 A method of handling proximity service (ProSe) in a wireless communication system, comprising: receiving, by a network entity of the wireless communication system, an attach request message or tracking area update (TAU) request message from a mobile device of the wireless communication system; and indicating, by the network entity, to the mobile device whether the network entity supports a ProSe capability in an attach accept message or TAU accept message. ### Claim 2 (depends on 1) The method of claim 1, wherein the network entity indicates whether the network entity supports the ProSe capability in a network feature support information element (IE) or a new IE of the attach accept message or the TAU accept message. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving, by the network entity, a first non-access stratum (NAS) request message for initiating a ProSe communication from the mobile device; wherein the mobile device is ProSe-enabled and the first NAS request message is an extended service request or a new NAS request. ### Claim 4 (depends on 3) The method of claim 3, further comprising: determining, by the network entity, whether to accept the first NAS request message by checking at least one of a UE network capability IE, a UE radio capability IE, a ProSe service subscription of the mobile device, and ProSe related parameters stored in a mobility management entity (MME) mobility management (MM) context or a ProSe context; wherein the UE network capability IE and the UE radio capability IE are included in the attach request message or the TAU request message. ### Claim 5 (depends on 4) The method of claim 4, further comprising: rejecting, by the network entity, the first NAS request message when the ProSe service subscription of the mobile device is invalid or the ProSe related parameters are not supported by the network entity. ### Claim 6 (depends on 4) The method of claim 4, further comprising: transmitting, by the network entity, the ProSe related parameters to a base station of the wireless communication system for starting the ProSe communication, when the network entity accepts the first NAS request message. ### Claim 7 (depends on 4) The method of claim 4, further comprising: transmitting, by the network entity, a second NAS message to the mobile device for indicating that the network entity accepts the first NAS request message. ### Claim 8 A method of handling proximity service (ProSe) in a wireless communication system, comprising: receiving, by a mobile device of the wireless communication system, a system information from at least one base station of the wireless communication system, wherein the system information indicates whether the base station supports a ProSe capability; and selecting or reselecting, by the mobile device, a cell associated to the base station which supports the ProSe capability, wherein the mobile device is ProSe-enabled. ### Claim 9 (depends on 8) The method of claim 8, further comprising: requesting, by the mobile device, for the ProSe service by transmitting an extended service request or a new non-access stratum (NAS) request via the base station to a core network of the wireless communication system. ### Claim 10 (depends on 8) The method of claim 8, further comprising: transmitting, by the mobile device, a first message in an attach procedure or tracking area update procedure to the base station to indicate that the mobile device is ProSe-enabled; wherein in response to the first message, the base station selects a ProSe-enabled mobility management entity (MME) for the mobile device, or reselects a ProSe-enabled MME for the mobile device when a registered MME indicated in the first message is not ProSe-enabled. ### Claim 11 (depends on 10) The method of claim 10, further comprising: transmitting, by the base station, a second message to the ProSe-enabled MME to indicate that the mobile device is ProSe-enabled, wherein the second message is an initial UE message, a UE capability info indication message, or a new message. ### Claim 12 A method of handling proximity service (ProSe) in a wireless communication system, comprising: receiving, by a ProSe application server, an application user registration request from a ProSe application client in a ProSe-enabled mobile device, wherein the application user registration request comprises at least an application user identifier (ID) and an authentication information; and determining, by the ProSe application server, whether the application user registration is successful by checking whether the application user ID is subscribed for the ProSe service and the authentication information is valid. ### Claim 13 (depends on 12) The method of claim 12, wherein the application user registration request further comprises a service request type, and the method further comprises: transmitting, by the ProSe application server, a ProSe service request to a ProSe function entity when the application user registration is successful and the service request type is indicated; wherein the ProSe service request indicates at least one of a ProSe UE ID of the mobile device, a ProSe group ID of a group where the application user has membership, a ProSe application ID and the indicated service request type. ### Claim 14 (depends on 13) The method of claim 13, further comprising: transmitting, by the ProSe function entity, a location reporting control message to a serving mobility management (MME) of the mobile device for initiating a location reporting procedure, when the service request type is indicated as ProSe discovery. ### Claim 15 (depends on 14) The method of claim 14, further comprising: when the serving MME receives a location information of the mobile device from a serving base station of the mobile device, transmitting, by the serving MME, the location information of the mobile device to at least one of the ProSe function entity, the ProSe application server, and the application user; and storing, by at least one of the ProSe function entity and the ProSe application server, the location information of the mobile device. ### Claim 16 (depends on 12) The method of claim 12, further comprising: transmitting, by the ProSe-enabled mobile device acting as a source mobile device, an extended service request or a new non-access stratum (NAS) request to a serving MME of the ProSe-enabled mobile device to request for ProSe discovery of a destination mobile device. ### Claim 17 (depends on 16) The method of claim 16, further comprising: determining, by the serving MME, whether both the source and destination mobile devices are authorized for the ProSe discovery; and initiating, by the serving MME, a location reporting procedure for both the source and destination mobile devices when both the source and destination mobile devices are authorized for the ProSe discovery. ### Claim 18 (depends on 17) The method of claim 17, further comprising: when the serving MME obtains a location information of both the source and destination mobile devices, transmitting, by the serving MME, the location information to the source mobile device via a NAS message; and determining, by the source mobile device, whether the destination mobile device is in proximity of the source mobile device according to the location information. ### Claim 19 (depends on 17) The method of claim 17, further comprising: when the serving MME obtains a location information of both the source and destination mobile devices, determining, by the serving MME, whether the destination mobile device is in proximity of the source mobile device according to the location information; and transmitting, by the serving MME, a determining result to the source mobile device.