Mobile station positioning methods are calibrated using an error bias estimation for refining the determination of the mobile station location which does not require any added hardware to the telecommunications system. The position of the mobile station is calculated assuming no bias errors and a first order approximation of the mobile station position is derived as a function of the bias error. The bias error is then estimated and used to refine the previously calculated mobile station position.

Title
Calibration of positioning systems
Application Number
9/847357
Publication Number
20020016172
Application Date
May 3, 2001
Publication Date
February 7, 2002
Inventor
Sven Fischer
Ari Kangras
Agent
Burns Doane Swecker & Mathis
VA, US
Agent
Ronald L Grudziecki
VA, US
IPC
H04Q 07/20
View Original Source