Link adaptation for MIMO transmission schemes

Details Link adaptation for MIMO transmission schemes Link adaptation for MIMO transmission schemes

2006-10-10

2006-10-10

Vo, Don N. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

07120199

ABSTRACT:
MIMO transmission methods are applied to communicaiton systems in which a transmitter has more than one transmit antenna and a receiver has more than one receive antenna. Information to be transmitted is divided into a plurality of subsignals according to the number of used transmit antennas and each subsignal is processed separately before it is emitted by the respective transmit antenna. In the receiver the different receive signals are processed thus that subsignals are detected and decoded and the contribution of each detected and decoded subsignal is subtracted from the receive signals and whereby a feedback channel from receiver to transmitter is used to send control information to the transmitter depending on the receive situation. In order to optimize the usage of the MIMO channel the invention proposes the in the receiver the link quality of each subsignal is determined and information of each subsignal is transmitted to the receiver via the feedback channel and that in the transmitter properties of the subsignals are controlled by the link quality information.

REFERENCES:
patent: 6473467 (2002-10-01), Wallace et al.
patent: 2002/0006168 (2002-01-01), Lee et al.
patent: 2002/0191703 (2002-12-01), Ling et al.
patent: 2003/0112880 (2003-06-01), Walton et al.
patent: 2005/0195915 (2005-09-01), Raleigh et al.
Kousa M.A. et al, “Adaptive Binary Coding for Diversity Communication Systems,” IEEE International Conference on Personal Wireless Communications Proceedings, XX, XX, 1997, pp. 80-84.
Ada S. Y. Poon, et al, “An Adaptive Multi-Antenna Transceiver for Slowly Flat Fading Channels,” Berkeley Wireless Research Center, Dept of Electrical Engineering and Computer Science, University of California, Berkeley, 'Online! Mar. 2000, pp. 1-35, XP002179018.
Gerard J. Foschini, “Layered Space-Time Architecture for Wireless Communication in a Fading Environment When Using Multi-Element Antennas,” Bell Labs Technical Journal, Bell Laboratories, US, vol. 1, No. 2, Sep. 21, 1996, pp. 41-59, XP000656005.
David N. Tse, “Optical Power Allocation over Parallel Gaussian Broadcast Channels,” Proceedings of the 1997 IEEE International Symposium on Information Theory. Dept. of EECS, U.C. Berkeley, ISIT '97, Jun. 29, 1997, p. 27 XP000950618.
G.D. Golden, et al, “Detection Algorithm and Initial Laboratory Results using V-Blast Space-Time Communication Architecture,” Electronics Letter, IEE Stevenage, GB, vol. 35, No. 1, Jan. 7, 1999, pp. 14-16 XP006011643.
Udo Wachsmann, Jörn Thielecke, and Hans Schotten; “Exploiting the Data-Rate Potential of MIMO Channels: Multi-Stratum Space-Time Coding.”
Ada S. Y. Poon, David N. C. Tse, and Robert W. Brodersen; “An Adaptive Multi-Antenna Transreceiver for Slowly Flat Fading Channels;” Berkeley Wireless Research Center, Department of Electrical Engineering and Computer Science, University of California; pp. 1-35.
M. A. Kousa and S. A. Al-Semari; “Adaptive Binary Coding for Diversity Communication System;” Electrical Engineering Department; KFUPM, Dhahran 31261, Saudi Arabia; 1997 IEEE; ICPWC'97; pp. 80-84.
Vahid Tarokh, Ayman Naguib, Nambi Seshadri, and A. Robert Calderbank; “Combined Array Processing and Space-Time Coding;” IEEE Transactions on Information Theory, vol. 45, No. 4, May 1999; pp. 1121-1128.
Lucent Technologies Inc.; “MIMO System Integration and Signalling in HSDPA;” Agenda Item: 7.3.1 HSDPA; Document for Discussion and Decision; TSG-RAN Working Group 2 #19; Sophia-Antipolis, France; Feb. 19-23; R2-010503.

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