Method and apparatus for determining a distance between a...

Details Method and apparatus for determining a distance between a... Method and apparatus for determining a distance between a...

2007-09-11

2007-09-11

Anderson, Matthew D. (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S007000, C455S009000, C455S456100, C455S456500, C455S456600, C455S404200, C455S067160, C342S450000, C342S453000

Reexamination Certificate

active

10856979

ABSTRACT:
The present invention provides a method and an apparatus for detecting at least one repeater between a base station and a mobile unit. The method includes determining a first estimate of a distance traveled by a signal on a wireless communication link between the base station and the mobile unit, determining a second estimate of the distance traveled by the signal on the wireless communication link between the base station and the mobile unit, and comparing the first and second estimates. The method also includes determining whether the signal was processed by the at least one repeater based upon comparing the first and second estimates.

REFERENCES:
patent: 6132306 (2000-10-01), Trompower
patent: 6501955 (2002-12-01), Durrant et al.
patent: 6633743 (2003-10-01), Berlinsky
patent: 7013111 (2006-03-01), Kuwahara et al.
European International Search Report EP 05 25 2688 dated Jul. 27, 2005.

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