GPS Solutions

, Volume 14, Issue 2, pp 153–163 | Cite as

Secure User Plane Location: concept and performance

Original Article

Abstract

Assisted GPS (A-GPS) has received much attention from both academic and industry because of its two major advantages, faster positioning and greater sensitivity. Secure User Plane Location (SUPL) is an emerging standard for A-GPS produced by the Open Mobile Alliance. This article briefly reviews A-GPS, then introduces the SUPL architecture and explains how SUPL works. An intensive SUPL A-GPS survey under different environments is reported in detail, while a standalone GPS test was utilized for comparison. The survey was carried out in 24 locations over the University of New South Wales campus representing 5 types of terrain: Urban, Suburban, Rural, Indoor, and Open sky with a wide range of acquisition difficulty levels. The results show SUPL can bring a great benefit in fast positioning—much shorter Time-To-First-Fix and high sensitivity—and a much lower failure rate.

Keywords

A-GPS SUPL TTFF High sensitivity 

Abbreviations

A-GPS

Assisted GPS

GPRS

General Packet Radio Service

MSA

Mobile Station Assisted

MSB

Mobile Station Based

RRLP

Radio Resource LCS Protocol

SET

SUPL Enabled Terminal

SLP

SUPL Location Platform

SUPL

Secure User Plane Location

TTFF

Time To First Fix

References

  1. Bryant R (2005) Using cellular telephone networks for GPS anywhere. GPS World, May 1Google Scholar
  2. Dedes G, Dempster AG (2005) Indoor GPS: positioning challenges and opportunities. IEEE 62nd semiannual vehicular technology conference, September 25–28, DallasGoogle Scholar
  3. 3GPP2 (2001) 3GPP2 C.S0022-0-1, Position Determination Service Standard for Dual Mode Spread Spectrum Systems Version 3.0. 3rd Generation Partnership Project 2, 16 FebruaryGoogle Scholar
  4. 3GPP2 (2004) 3GPP2 C.S0022-A, Position Determination Service for cdma2000 Spread Spectrum Systems Version 1.0. 3rd Generation Partnership Project 2, MarchGoogle Scholar
  5. 3GPP (2008a) 3GPP TS 44.031 3rd Generation Partnership Project; Technical Specification Group GSM/EDGE Radio Access Network; Location Services (LCS); Mobile Station (MS)—Serving Mobile Location Centre (SMLC); Radio Resource LCS Protocol (RRLP) V7.8.0. March 2008 (GSM)Google Scholar
  6. 3GPP (2008b) 3GPP TS 25.453 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; UTRAN Iupc interface Positioning Calculation Application Part (PCAP) signaling V7.10.0. MarchGoogle Scholar
  7. Harper N, Nicholson P, Mumford P, Poon E (2004) Process for improving GPS acquisition assistance data and server-side location determination for cellular networks. The 2004 international symposium on GNSS/GPS, 6–8 December, Sydney, AustraliaGoogle Scholar
  8. LaMance J, Jarvinen J, DeSalas J (2002) Assisted GPS: a low-infrastructure approach. GPS World, March 1Google Scholar
  9. Moeglein M, Krasner N (2001) An introduction to SnapTrack wireless-assisted GPS technology. GPS Solut 4(3):16–26CrossRefGoogle Scholar
  10. Open Mobile Alliance (2007a) Secure User Plane Location architecture. Approved version 1.0—15 June 2007, OMA-AD-SUPL-V1_0-20070615-AGoogle Scholar
  11. Open Mobile Alliance (2007b) User Plane Location Protocol. Approved Version 1.0—15 June, OMA-TS-ULP-V1_0-20070615-AGoogle Scholar
  12. Parkinson BW, Spilker JJ (eds) (1996) Global positioning system: theory an applications, vol I. American Institute of Aeronautics and Astronautics, Inc., WashingtonGoogle Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Binghao Li
    • 1
  • P. Mumford
    • 1
  • A. G. Dempster
    • 1
  • C. Rizos
    • 1
  1. 1.School of Surveying and Spatial Information SystemsUniversity of New South WalesSydneyAustralia

Personalised recommendations