Apparatus and method for echo cancellation in a wireless...

Details Apparatus and method for echo cancellation in a wireless... Apparatus and method for echo cancellation in a wireless...

2005-06-06

2008-11-18

Ferguson, Keith T (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Plural modulated carriers

C455S007000, C455S011100, C455S024000, C455S039000, C455S500000, C370S315000, C370S317000, C370S316000, C370S279000

Reexamination Certificate

active

07454167

ABSTRACT:
A repeater for re-transmitting uplink and downlink signals in a wireless network. The repeater uses antenna cross-polarization, signal cancellation and digital processing techniques to reduce or eliminate coupling of echo signals between the receive and transmit antennas of the downlink and uplink signal paths in the repeater.

REFERENCES:
patent: 2004/0176027 (2004-09-01), O'Neil
patent: 2005/0250442 (2005-11-01), Dore et al.
patent: 2005/0286448 (2005-12-01), Proctor et al.

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