Apparatus, and associated method, for verifying closed-loop...

Details Apparatus, and associated method, for verifying closed-loop... Apparatus, and associated method, for verifying closed-loop...

2005-09-20

2005-09-20

Deane, Jr., WIlliam J. (Department: 2642)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S503000

Reexamination Certificate

active

06947707

ABSTRACT:
Apparatus, and associated method, verifies values of antenna weightings used to weight transmit signals transmitted by a base transceiver station which utilizes transmit diversity. Verification is performed at a mobile station which receives transmit signals sent by the base transceiver station. Sequence estimation is provided by a sequence estimator which thereby verifies the values of the feedback information. Once verified, the values are returned to the base transceiver station and are utilized to adjust the weightings of the antennas for subsequently-communicated signals by the base station. The use of sequence estimation permits improved accuracy of verification of the values of the antenna weightings.

REFERENCES:
patent: 5488635 (1996-01-01), Chennakeshu et al.
patent: 6452981 (2002-09-01), Raleigh et al.
patent: 2002/0009156 (2002-01-01), Hottinen et al.
patent: 2002/0131490 (2002-09-01), Allpress et al.
patent: 2002/0141486 (2002-10-01), Bottomley et al.

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