Title:
DETERMINING MOBILE LOCATION WITH TAGGED SIGNALS FROM A DISTRIBUTED ANTENNA SYSTEM
Document Type and Number:
WIPO Patent Application WO2005069749
Kind Code:
A3
Abstract:
A method for determining the location of a mobile unit tags uplink signals received at separate antennas (34, 36, 38) with corresponding antenna tags. All of the uplink signals are combined into a single combined signal, which may be transmitted to a base station. One or more signal parts are selected from the combined signal, and these selected parts are decoded to determine their corresponding antenna tags. A location algorithm is applied to the decoded signal parts to determine a location of the mobile unit.
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Inventors:
OSAKA KEN (JP)
YEUNG SIMON PUI SANG (US)
HART DAVID (US)
KATSURASHIMA AKIRA (JP)
YEUNG SIMON PUI SANG (US)
HART DAVID (US)
KATSURASHIMA AKIRA (JP)
Application Number:
PCT/US2004/013134
Publication Date:
November 02, 2006
Filing Date:
April 27, 2004
Export Citation:
Assignee:
LGC WIRELESS INC (US)
DOCOMO ENGINEERING INC (JP)
DOCOMO ENGINEERING INC (JP)
International Classes:
G01S5/00; H04W4/029; H04W64/00
Foreign References:
| US6236365B1 | 2001-05-22 | |||
| US6501955B1 | 2002-12-31 | |||
| US5227679A | 1993-07-13 |
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