Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-03-17
2009-12-01
Feild, Joseph H (Department: 2627)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S561000, C455S550100, C455S403000, C455S422100
Reexamination Certificate
active
07627347
ABSTRACT:
A solution for optimizing beamforming configurations and transmit power allocation configurations in a telecommunication system comprising a base station and a plurality of user entities is provided. The base station and the user entities are capable of multiple-input multiple-output (MIMO) communications, i.e. capable of communicating through spatial subchannels. The base station calculates iteratively optimal beamforming configurations for the base station and for each user entity and transmit power allocation configurations for each spatial subchannel used in MIMO communications. The base station carries out the calculation on the basis of channel state information received from the user entities by utilizing the information on correlation of different spatial subchannels, i.e. interference between the subchannels, in order to update beamforming configurations and transmit power allocation configurations.
REFERENCES:
patent: 6662024 (2003-12-01), Walton et al.
patent: 7248879 (2007-07-01), Walton et al.
patent: 2003/0087673 (2003-05-01), Walton et al.
patent: 2003/0125040 (2003-07-01), Walton et al.
patent: 2005/0101259 (2005-05-01), Tong et al.
patent: 2005/0181833 (2005-08-01), Lee et al.
patent: 2006/0034244 (2006-02-01), Huang et al.
patent: 2006/0121946 (2006-06-01), Walton et al.
patent: 2007/0211786 (2007-09-01), Shattil
patent: 2008/0013638 (2008-01-01), Walton et al.
patent: WO 2005/048486 (2005-05-01), None
Vandenberghe et al., “Semidefinite Programming”, Siam Review, Mar. 1996, pp. 1-50.
Boyd et al., “A Tutorial on Geometric Programming”, Optimization and Engineering, Jul. 2005, pp. 1-69.
Viswanath et al., “Sum Capacity of the Vector Gaussian Broadcast Channel and Uplink-Downlink Duality”, IEEE Transactions on Information Theory, vol. 49, No. 8, Aug. 2003, pp. 1912-1921.
Viswanath et al., “Opportunistic Beamforming Using Dumb Antennas”, IEEE Transactions on Information Theory, vol. 48, No. 6, Jun. 2002, pp. 1277-1294.
Jeffs et al., “MIMO Wireless Multipath Ray Parameter Estimation from Channel Transfer Matrix Measurements”, In Acoustics, Speech, and Signal Processing, 2002, International Conference May 13-17, 2002.
Codreanu Marian Ionee
Juntti Markku
Latva-Aho Matti
Tölli Antti
Feild Joseph H
Hollingsworth & Funk LLC
Nguyen Huy D
Nokia Corporation
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