METHODS AND SYSTEMS FOR DERIVING SEED POSITION OF SUBSCRIBER STATION IN SUPPORT OF UNASSISTED GPS-TYPE POSITION DETERMINATION IN WIRELESS COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a method and system for deriving a seed position of a subscriber station in support of unassisted GPS-type position determination in a wireless communications system.

SOLUTION: In a method and system for deriving a seed position of a subscriber station in a wireless communications system in supporting unassisted GPS-type position determination, the subscriber station receives overhead messages from the wireless communications system, and derives the seed position from parameter values. The subscriber station may use a data structure in its memory and map possible parameter values to corresponding positions that may serve as the seed positions. The data structure can be updated in accordance with update conditions.

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