Method and apparatus for providing location information in a wireless access system supporting a mission critical push to talk service

A requested user equipment (UE) for providing location information in a wireless access system supporting a Mission Critical Push to Talk (MCPTT) service, the requested UE comprising:

• a transmitter;
• a receiver;
• and
• a processor,
• wherein the processor is configured to:
• control the receiver to receive, from a requesting UE, a report request message requesting a report of location information of the requested UE,
• wherein the report request message is encrypted with a credential of the requesting UE and the location information represents a current physical location of the requested UE,
• verify the credential of the requesting UE,
• wherein the credential is configured with an identifier (ID) of the requesting UE and a qualification of the MCPTT service,
• determine whether to accept the request of location information by determining whether the report request message is for the MCPTT service or a normal Push to Talk (PTT) service based on the credential, and
• control the transmitter to transmit, to the requesting UE, a report response message including the location information of the requested UE, when the credential of the requesting UE has been determined to be for the MCPTT service, or
• control the transmitter to transmit, to the requesting UE, a request reject message indicating that the report request is denied, when the report request message has been determined to be for the normal PTT service,
• wherein the MCPTT service is used for a public safety and utility services and provides communication among the requesting and the requested UEs, and
• wherein the PTT service is used for a commercial purpose services among the requesting and the requested UEs.