Apparatus, and associated method, for facilitating antenna...

Details Apparatus, and associated method, for facilitating antenna... Apparatus, and associated method, for facilitating antenna...

2007-05-01

2007-05-01

Eng, George (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S575700, C455S561000, C455S013300, C455S069000, C455S101000

Reexamination Certificate

active

10832049

ABSTRACT:
Apparatus, and an associated method, for facilitating selection of optimal antenna weightings by which to weight signals sent in a communication system that utilizes closed-loop transmit diversity. A deterministic perturbation gradient approximation technique is utilized in which perturbation vectors are selected by a selector and applied, by an applicator, to antenna weighting elements. A selected set of perturbation vectors are applied to the antenna weighting elements in both a positive direction and a negative direction. A detector at a receiving station measures in disassociated with the signals communicated thereto, once weighted with the perturbation vectors. A single-bit feedback value is returned to the sending station, and the antenna weightings are appropriately adjusted.

REFERENCES:
patent: 6131022 (2000-10-01), Jacomb-Hood et al.
patent: 6185440 (2001-02-01), Barratt et al.
patent: 6952455 (2005-10-01), Banister

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