Patent ID: 8233917

Claim:
A method of providing location services of a mobile station in a worldwide interoperability for microwave access (WiMAX) network including one or more access service networks (ASNs), comprising: at a location service (LCS) server, receiving a location service request of a target mobile station included in a first paging group from an LCS client; at the LCS server, making a request for a location of the target mobile station to an ASN gateway that provides a service to the target mobile station; at the ASN gateway, determining whether or not to execute a paging and location update (PLU) of the target mobile station; if the execution of the PLU is determined to be executed, then executing the PLU at each of the ASN gateway, a serving base station and the target mobile station; if the execution of the PLU is not determined to be executed or when the execution of the PLU is completed, making a request for a location measurement of the target mobile station to the serving base station at the ASN gateway; at the serving base station, sending a scanning interval allocation response message (MOB-SCN-RSP) defined in the WiMAX wireless standard to the target mobile station; at the target mobile station, sending a scanning result report message (MOB-SCN-REP) defined in the WiMAX wireless standard to the serving base station in response to the scanning interval allocation response message (MOB-SCN-RSP); at the serving base station, generating a location measurement result based on the scanning result report message (MOB-SCN-REP) and transmitting the location measurement result to the ASN gateway; at the ASN gateway creating a location response based on the location measurement result and transmitting the location response to the LCS server; and at the LCS server, creating a location service response of the target mobile station based on the location response and transmitting the location service response to the LCS client, wherein the scanning interval allocation response message defined in the WiMAX wireless standard is transmitted to the target mobile station, the scanning result report message defined in the WiMAX wireless standard is sent to the serving base station in response to the scanning interval allocation response message, the location measurement result is generated based on the scanning result report message and transmitted to the ASN Gateway, and the location response is created based on the location measurement result and transmitted to the LCS server irrespective of whether the target mobile station is in idle mode or not, and wherein the location service request is initiated and transmitted to the LCS server when the target mobile station remains within the first paging group.