Method and system for determining locations of mobile stations using directional corrections
First Claim
1. A system for mobile station location determination, said system comprising:
- data storage storing positioning information, wherein said positioning information identifies at least one receiving area and a plurality of transmitting areas, and said positioning information includes, for said at least one receiving area, a plurality of directional correction values, each of said directional correction values being specific to wireless signals transmitted from a particular one of said transmitting areas and received in said at least one receiving area; and
a position determining entity (PDE) for determining locations of mobile stations using said positioning information.
6 Assignments
0 Petitions
Accused Products
Abstract
A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless signals that are transmitted from a particular base station antenna and propagate toward a particular receiving area. A mobile station operating in a receiving area measures a wireless signal from a base station antenna located outside of the receiving area to obtain a signal measurement. The location of the mobile station is determined by applying a positioning algorithm that uses the signal measurement corrected by the directional FLC value for that particular combination of base station antenna and receiving area.
20 Citations
7 Claims
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1. A system for mobile station location determination, said system comprising:
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data storage storing positioning information, wherein said positioning information identifies at least one receiving area and a plurality of transmitting areas, and said positioning information includes, for said at least one receiving area, a plurality of directional correction values, each of said directional correction values being specific to wireless signals transmitted from a particular one of said transmitting areas and received in said at least one receiving area; and a position determining entity (PDE) for determining locations of mobile stations using said positioning information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification