• Journal of Internet Computing and Services
    ISSN 2287 - 1136(Online) / ISSN 1598 - 0170 (Print)
    http://jics.or.kr/

Mobile Positioning Without GPS in CDMA2000 1X


Eun-Tae Won, Su-ki Paik, Journal of Internet Computing and Services, Vol. 2, No. 5, pp. 49-58, Dec. 2001
Full Text:

Abstract

Mobile positioning measurement is the most important technology for Location Based Services in the cellular networks. Generally, we are expecting to use GPS to guarantee high accuracy of the mobile position, A CDMA network-based technique for the Mobile Station position calculation needs to be implemented in the cdma2000 network whether the handsets have GPS or not, The most reliable methods of the network-based location technologies are based on the estimation of time of signal traveling between MS and B18 in a network whose coordinates are identified, Other signal parameters such as the power of the received signal and the signal arrival direction cannot be used as main data for a location system because adoption of only the signal parameters will not meet the FCC requirements, In practice, the estimates of the time of signal propagation between MS and BTS always have errors resulting from low-resolution power of measurements and multi path signal propagation, This paper describes the combined network-based location technology in the cdma2000 1¡¿ necessary to meet US FCC requirements. The issues of a calibration table and statistic processing based on the pilot strength as well as combined network-based location technologies(TOA/ TDOA) will help to achieve higher location accuracy than specified in the US FCC Rule.


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Cite this article
[APA Style]
Eun-Tae Won and Su-ki Paik (2001). Mobile Positioning Without GPS in CDMA2000 1X. Journal of Internet Computing and Services, 2(5), 49-58.

[IEEE Style]
E. Won and S. Paik, "Mobile Positioning Without GPS in CDMA2000 1X," Journal of Internet Computing and Services, vol. 2, no. 5, pp. 49-58, 2001.

[ACM Style]
Eun-Tae Won and Su-ki Paik. 2001. Mobile Positioning Without GPS in CDMA2000 1X. Journal of Internet Computing and Services, 2, 5, (2001), 49-58.