Method and apparatus for tracking location of user equipment...

Details Method and apparatus for tracking location of user equipment... Method and apparatus for tracking location of user equipment...

2005-11-10

2008-11-04

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C342S357490, C342S357490

Reexamination Certificate

active

07446701

ABSTRACT:
A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times of BSs and pilot signal reception times of the UE, and an average value of the TDOA position solutions is calculated. The GPS position solution is subtracted from the average to obtain a position error value, and an iterative method using a least square method is performed for the position error value to correct the position error. The corrected position error value is added to the average value of the TDOA position solutions to obtain a more precise position solution.

REFERENCES:
patent: 4268830 (1981-05-01), Brodeur
patent: 5043736 (1991-08-01), Darnell et al.
patent: 5479482 (1995-12-01), Grimes
patent: 5512908 (1996-04-01), Herrick
patent: 5523763 (1996-06-01), Loomis
patent: 5708658 (1998-01-01), Sugita
patent: 5884215 (1999-03-01), Birchler et al.
patent: 5929806 (1999-07-01), Birchler et al.
patent: 5982324 (1999-11-01), Watters et al.
patent: 6014102 (2000-01-01), Mitzlaff et al.
patent: 6230018 (2001-05-01), Watters et al.
patent: 6252543 (2001-06-01), Camp
patent: 6300904 (2001-10-01), Dvorak et al.
patent: 6429815 (2002-08-01), Soliman
patent: 6430416 (2002-08-01), Loomis
patent: 6728637 (2004-04-01), Ford et al.
patent: 6845239 (2005-01-01), Sato et al.
patent: 6847325 (2005-01-01), Kim
patent: 6891500 (2005-05-01), Hall et al.
patent: 2003/0036849 (2003-02-01), Ford et al.
patent: 2004/0027277 (2004-02-01), Diggelen et al.
patent: 2004/0027278 (2004-02-01), Park
patent: 2004/0110514 (2004-06-01), Kim et al.
patent: 2004/0174297 (2004-09-01), Cho
patent: 2005/0055160 (2005-03-01), King
patent: 2005/0096066 (2005-05-01), Lee
patent: 2005/0162308 (2005-07-01), Diggelen et al.
patent: 2006/0033660 (2006-02-01), Dodson
patent: 2006/0063537 (2006-03-01), Lee et al.
patent: 1455198 (2004-09-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for tracking location of user equipment... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for tracking location of user equipment..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for tracking location of user equipment... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4021787