WO2005025249A8 - Method for minimizing the maximum system time uncertainty for a mobile station - Google Patents

Method for minimizing the maximum system time uncertainty for a mobile station

Info

Publication number
WO2005025249A8
WO2005025249A8 PCT/US2004/014979 US2004014979W WO2005025249A8 WO 2005025249 A8 WO2005025249 A8 WO 2005025249A8 US 2004014979 W US2004014979 W US 2004014979W WO 2005025249 A8 WO2005025249 A8 WO 2005025249A8
Authority
WO
WIPO (PCT)
Prior art keywords
mobile station
system time
maximum system
position determination
time uncertainty
Prior art date
Application number
PCT/US2004/014979
Other languages
French (fr)
Other versions
WO2005025249A1 (en
Inventor
Borislav Ristic
Original Assignee
Qualcomm Inc
Borislav Ristic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc, Borislav Ristic filed Critical Qualcomm Inc
Priority to BRPI0414097-4A priority Critical patent/BRPI0414097A/en
Priority to KR1020067004570A priority patent/KR101088844B1/en
Publication of WO2005025249A1 publication Critical patent/WO2005025249A1/en
Publication of WO2005025249A8 publication Critical patent/WO2005025249A8/en
Priority to IL173983A priority patent/IL173983A0/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The maximum system time uncertainty for a mobile station in a wireless communications system using GPS signals for position determination is minimized by using aiding information from base stations, such as neighbor search window size (NSWS) parameters or neighboring pilot measurements (NPM). Knowledge of the last successful position determination fix (LSPDF) and the speed of the mobile station may also be used. In one embodiment, a weighted combination of estimates based on NSWS parameters, neighboring pilot measurements and/or last successful position determination fix is used. The search time window is then proportional to the maximum system time uncertainty plus position uncertainty.
PCT/US2004/014979 2003-09-05 2004-05-11 Method for minimizing the maximum system time uncertainty for a mobile station WO2005025249A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BRPI0414097-4A BRPI0414097A (en) 2003-09-05 2004-05-11 method to minimize maximum system time uncertainty for a mobile station
KR1020067004570A KR101088844B1 (en) 2003-09-05 2004-05-12 Method for minimizing the maximum system time uncertainty for a mobile station
IL173983A IL173983A0 (en) 2003-09-05 2006-02-27 Method for minimizing the maximum system time uncertainty for a mobile station

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50043203P 2003-09-05 2003-09-05
US60/500,432 2003-09-05

Publications (2)

Publication Number Publication Date
WO2005025249A1 WO2005025249A1 (en) 2005-03-17
WO2005025249A8 true WO2005025249A8 (en) 2005-12-15

Family

ID=34272954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/014979 WO2005025249A1 (en) 2003-09-05 2004-05-11 Method for minimizing the maximum system time uncertainty for a mobile station

Country Status (4)

Country Link
KR (1) KR101088844B1 (en)
BR (1) BRPI0414097A (en)
IL (1) IL173983A0 (en)
WO (1) WO2005025249A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011100859A1 (en) 2010-02-19 2011-08-25 Telefonaktiebolaget L M Ericsson (Publ) Improvements on otdoa and agnss positioning and timing information obtaining and updating
CN102783227B (en) * 2010-02-19 2018-03-16 无线星球有限责任公司 It is determined that the probabilistic method and apparatus of timing
CN103686810B (en) * 2013-12-10 2017-02-15 航天恒星科技有限公司 Satellite network neighbor detection method
KR102263608B1 (en) * 2019-07-11 2021-06-14 한국외국어대학교 연구산학협력단 System for guiding multi road and method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526039B1 (en) * 1998-02-12 2003-02-25 Telefonaktiebolaget Lm Ericsson Method and system for facilitating timing of base stations in an asynchronous CDMA mobile communications system
US6542743B1 (en) * 1999-08-31 2003-04-01 Qualcomm, Incorporated Method and apparatus for reducing pilot search times utilizing mobile station location information

Also Published As

Publication number Publication date
WO2005025249A1 (en) 2005-03-17
KR20060088535A (en) 2006-08-04
IL173983A0 (en) 2006-07-05
KR101088844B1 (en) 2011-12-06
BRPI0414097A (en) 2006-11-14

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