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Title:
METHOD AND DEVICE FOR DETERMINING POSITION BY USING SMALL NUMBER OF GPS SATELLITES AND SYNCHRONOUS AND ASYNCHRONOUS BASE STATIONS
Document Type and Number:
Japanese Patent JP2011227086
Kind Code:
A
Abstract:

To provide a method and a device for determining a position of a wireless communication device using a global positioning system (GPS) satellite, a base station synchronized with GPS time and a base station non-synchronized with GPS time.

Asynchronous base stations synchronize with each other. Arrival time information is adjusted in consideration of that the wireless communication device receives information biased by one-way delay which is delay in signals notified to the wireless communication device by GPS time information received from the base station. Arrival time difference information for the base station non-synchronized with GPS time enables the bias between base station GPS times to be deleted.


Inventors:
SOLIMAN SAMIR S
Application Number:
JP2011120295A
Publication Date:
November 10, 2011
Filing Date:
May 30, 2011
Export Citation:
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Assignee:
QUALCOMM INC
International Classes:
G01S19/03; G01S19/13; G01S1/00; G01S5/00; G01S5/02; G01S5/10; G01S5/14; G01S13/82; G01S19/07; G01S19/09; G01S19/12; G01S19/23; G01S19/25; G01S19/41; G01S19/46; G04G7/02; H04B7/15; H04W64/00
Domestic Patent References:
JP2002512373A2002-04-23
JP2000504838A2000-04-18
JP2001521154A2001-11-06
JPH11513482A1999-11-16
Foreign References:
WO1999054752A11999-10-28
WO1997030360A21997-08-21
WO1999021028A11999-04-29
WO1997011384A11997-03-27
Attorney, Agent or Firm:
Kurata Masatoshi
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori