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Mobile based pilot long integration for position location

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3 Author(s)
Yiping Wang ; Wireless Solution Nortel Network, Richardson, TX, USA ; Strawczynski, L. ; Nielsen, J.

Reverse link power control in CDMA systems such as TIA/EIA/IS-95 systems poses a significant difficulty to network based position location. An alternative is to use CDMA pilot signals on the forward link to obtain the mobile location. We propose a mobile based long integration method for the pilot signals to increase the pilot visibility to the mobile such that adequate pseudorange estimates can be made. Simulation has demonstrated that a received pilot power of Ec/Io⩾-30 dB leads to a TOA estimate of sufficient accuracy to meet FCC requirements. With a -30 dB Ec/Io threshold, the mobile can generally detect three or more base station pilots in rural, suburban, urban and dense urban environments

Published in:

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Date of Conference:

1999

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