Method and system for multiple channel wireless transmitter...

Details Method and system for multiple channel wireless transmitter... Method and system for multiple channel wireless transmitter...

2005-03-01

2005-03-01

Vuong, Quochien B. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S226100, C455S295000, C375S346000, C329S304000, C329S320000

Reexamination Certificate

active

06862440

ABSTRACT:
The present invention provides a method and system for estimating common amplitude and phase errors of a multiple channel wireless system. The multiple channel wireless system includes a plurality of transmission channels formed between a plurality of transmission antennas and a plurality of receiver antennas. The method includes estimating transmission channel elements between each transmission antenna and receiver antenna pair of the multiple channel wireless system. Calibration symbols are transmitted from each transmit antenna. Signals are received that correspond to the calibration symbols having traveled through the transmission channels. Received calibration symbols are estimated based upon spatial processing of the received signals and the estimated transmission channel elements. Common amplitude and phase errors are estimated for each transmit and receive antenna pair by comparing the transmitted calibration symbols with the received calibration symbols.

REFERENCES:
patent: 5099493 (1992-03-01), Zeger et al.
patent: 5359627 (1994-10-01), Resnikoff
patent: 5615209 (1997-03-01), Bottomley
patent: 5705949 (1998-01-01), Alelyunas et al.
patent: 1 098 390 (2001-05-01), None
patent: 1 133 093 (2001-09-01), None
patent: 1 178 640 (2002-02-01), None

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