Method for computing beamforming weighting vectors with...

Details Method for computing beamforming weighting vectors with... Method for computing beamforming weighting vectors with...

2007-07-13

2010-02-23

Edouard, Patrick N. (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456600

Reexamination Certificate

active

07668555

ABSTRACT:
A method and system are provided for computing beamforming weighting vectors with collaborated uplink sounding in a wireless communications network. The method comprises selecting a designated uplink sounding region and a signal sequence from a set of orthogonal signal sequences; exchanging collaborated uplink sounding information between a base transceiver station (BTS) in a cell and one or more BTSs in its neighboring cells; receiving one or more first sounding signals in the designated uplink sounding region from a first CPE in the cell, which are considered as desired signals; confirming channel-sharing among the first CPE and one or more second CPEs in the neighboring cells; detecting one or more second sounding signals from the one or more second CPEs, which are considered as interference signals; and calculating the beamforming weighting vector using the first one or more sounding signals and the one or more second sounding signals.

REFERENCES:
patent: 6400780 (2002-06-01), Rashid-Farrokhi et al.
patent: 2006/0285504 (2006-12-01), Dong et al.

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