Abstract: Disclosed herein are methods and systems to help provide a location of a mobile station in cases in which the location of the serving base station may not be known or may not be available from a base station almanac. According to the disclosed methods and systems, if the serving base station is not listed in the almanac, a positioning system will direct the mobile station to obtain identification information from a second base station (e.g., the “second best” available base station) by acquiring or partially acquiring a connection to the second base station. The positioning system may then query the almanac for location information of the second base station, based on the identification information obtained from that base station.

Abstract: A method and apparatus for communicating the location of a split sector in a cellular wireless communication system. A processor receives a definition of the separate coverage areas defining the split sector and programmatically determines whether a minimum composite angle spanning the coverage areas exceeds a threshold such as 180°. If so, the processor establishes an data-representation of the split sector as an omnidirectional sector. Otherwise, the processor establishes a data-representation of the split sector as a non-omnidirectional sector. The processor may then communicate the established data-representation for use as a basis to facilitate a location-based service keyed to the location of the split sector, such as response to an emergency service call for instance.