Pulse or digital communications – Transmitters
Reexamination Certificate
2007-08-14
2007-08-14
Payne, David C. (Department: 2611)
Pulse or digital communications
Transmitters
C342S368000, C342S378000, C367S138000, C370S318000, C370S342000, C375S267000, C375S299000, C375S347000, C455S101000, C455S562100
Reexamination Certificate
active
10643841
ABSTRACT:
Systems and methods of MIMO wireless communication system with partial feedback are disclosed. In one embodiment, a base station estimates the channel matrices of the K mobile units and transmits an index value corresponding to each of the estimated channel matrix. Each mobile unit selects a power control matrix and beam-forming matrix based on the received index value and transmits its data stream to the base station using the selected power control and beam-forming matrix. A method for generating the sets of power control matrices, beam-forming matrices, and partitions of the channel matrix space is disclosed.
REFERENCES:
Lau et al.; The Role of Transmit Diversity on Wireless Communications—Reverse Link Analysis With Partial Feedback, Dec. 2002, IEEE Transactions on Communications, pp. 2082-2090.
Lau; Optimal Transmission Design For MIMO Block Fading Channels With Feedback Capacity Constraint, Apr. 2003, Information Theory Workshop, pp. 94-98.
Barroso et al., “Blind Identification of MIMO Channels: A Closed Form Solution Based on Second Order Statistics”, Instituto Superior Tecnico—Instituto de Sistemas e Robotica, Codex, Portugal (1999).
Tran et al., “A Generalized Simplified ML Decoder of Orthogonal Space—Time Block Code for Wireless Communications over Time-Selective Fading Channels”, Dept. of Electrical and Computer Engineering, University of Calgary, Calgary, Canada, pp. 1911-1915 (2002).
K.N. Lau, “The Role of Transmit Diversity on Wireless Communications—Reverse Link Analysis with Partial Feedback”, Bell Labs, Lucent Technologies, pp. 1-7 (Nov. 2001).
I. Emre Telatar, Capacity of Multi-antenna Gaussian Channels, Lucent Technologies, Bell Laboratories, Murray Hill, NJ, U.S.A., pp. 1-28.
Dickstein , Shapiro, LLP.
DSouza Adolf
Payne David C.
The University of Hong Kong
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