Location-based (lbs) service system, method, and equipment for mobile station lbs application authorization

摘要

"LOCATION BASED SERVICE (LBS) SYSTEM, METHOD AND EQUIPMENT FOR AUTHORIZING LBS MOBILE STATION APPLICATIONS". A system, method and equipment for providing location services where location determination and location description are treated as separate and independent processes. Location determination may be performed (as required) through a first set of network entities to obtain location information for a mobile station. Location information can be accumulated for subsequent description for any number of applications. Location description may be performed (when requested) through a second set of network entities to provide location information. Location determination can use a first security procedure for authorization and to obtain a first session key used for location determination. Location description can use a second security procedure for authorization and to obtain a second session key for location description. For a roaming mobile station, location determination can be performed over a server network and location description can be performed over a home network.