Method and apparatus for singular value decomposition of a...

Details Method and apparatus for singular value decomposition of a... Method and apparatus for singular value decomposition of a...

2006-03-29

2009-10-13

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S146000, C375S260000, C375S226000, C370S210000, C370S480000, C708S607000, C708S200000

Reexamination Certificate

active

07602855

ABSTRACT:
A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas. A Hermitian matrix A=HHH or A=HHHis created. A Jacobi process is cyclically performed on the matrix A to obtain Q and DAmatrixes such that A=QDAQH. DAis a diagonal matrix obtained by singular value decomposition (SVD) on the A matrix. In each Jacobi transformation, real part diagonalization is performed to annihilate real parts of off-diagonal elements of the matrix and imaginary part diagonalization is performed to annihilate imaginary parts of off-diagonal elements of the matrix after the real part diagonalization. U, V and DHmatrixes of H matrix are then calculated from the Q and DAmatrices. DHis a diagonal matrix comprising singular values of the H matrix.

REFERENCES:
patent: 5542101 (1996-07-01), Pal
patent: 7327800 (2008-02-01), Oprea et al.
patent: 2004/0066761 (2004-04-01), Giannakis et al.
patent: 2004/0165684 (2004-08-01), Ketchum et al.
patent: 2004/0192218 (2004-09-01), Oprea
patent: 2004/0252632 (2004-12-01), Bourdoux et al.
patent: 2006/0106902 (2006-05-01), Howard et al.
patent: 2006/0126752 (2006-06-01), Hansen et al.
patent: 2006/0155798 (2006-07-01), Ketchum et al.
patent: 2006/0171297 (2006-08-01), Ghosh
patent: 2006/0285531 (2006-12-01), Howard et al.
patent: 2006/053340 (2006-05-01), None
Seeger et al., “Advance Eigenbeamforming for the 3GPP UMTS FDD Downlink,” ITG IEEE Workshop on Smart Antennas, pp. 1-8 (Apr. 4, 2004).
Haykin, Simon “Adaptive Filter Theory”, 3rdEdition, Chapter 12.
Michalke et al., “Efficient Tracking of Eigenspaces and its Application to Eigenbeamforming,” 14thIEEE Proceedings on Personal, Indoor, and Mobile Radio Communications, vol. 2, pp. 2847-2851 (Sep. 7, 2003).
Schafer et al., “Efficient Tracking of Eigenspaces and its Application to MIMO Systems,” Proceedings of the 1stMobile and Wireless Communications Summit, XP002478514 (Jun. 15, 2003).

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