Patent ID: 8131290

Claim:
An apparatus comprising: a communication unit to receive one or more signals indicative of a first request for positioning assistance from a mobile station communicating with a visited network; a processor to determine that a portion of base station almanac (BSA) data applicable for the mobile station is not locally available in a home network, the processor to initiate transmission of a second request for location information for the mobile station to a designated network entity at least in part in response to the determining that the portion of the BSA applicable for the mobile station is not locally available in the home network, the communication unit further to receive one or more signals indicative of location information for the mobile station from the designated network entity, the received location information comprising one or more of BSA data, satellite positioning system (SPS) assistance data, and/or a position estimate for the mobile station, the processor to initiate transmission of positioning assistance information to the mobile station based at least in part on the received location information; and a memory coupled to the processor.