Telecommunications – Transmitter and receiver at separate stations
Reexamination Certificate
2006-10-31
2006-10-31
Nguyen, Simon (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
C455S101000, C455S115100, C455S562100, C375S267000, C375S299000
Reexamination Certificate
active
07130580
ABSTRACT:
A method is provided of transmitting signals from two or more antennas in a wireless telecommunications network, in which at least one data sequence is space-time block encoded. Before transmitting the data sequence, a linear transformation is applied to the data sequence, the linear transformation being adapted to use knowledge of correlation among the antennas to at least partially compensate the transmitted signals for said correlation. The linear transformation depends on the eigenvalues of an antenna correlation matrix. The linear transformation further depends on a ratio of symbol energy (ES) to noise variance (σ2). The method includes transmitting the encoded and transformed data sequence.
REFERENCES:
patent: 5262785 (1993-11-01), Silverstein et al.
patent: 5359333 (1994-10-01), Withers, Jr.
patent: 6044083 (2000-03-01), Citta et al.
patent: 6070079 (2000-05-01), Kuwahara
patent: 6185258 (2001-02-01), Alamouti et al.
patent: 6891897 (2005-05-01), Bevan et al.
patent: 6907270 (2005-06-01), Blanz
patent: 7006848 (2006-02-01), Ling et al.
patent: 2001/0033622 (2001-10-01), Jongren et al.
patent: 2002/0136327 (2002-09-01), El-Gamal et al.
patent: 2003/0026349 (2003-02-01), Onggosanusi et al.
patent: 2003/0048857 (2003-03-01), Onggosanusi et al.
patent: 2003/0063654 (2003-04-01), Onggosanusi et al.
patent: 2003/0073464 (2003-04-01), Giannakis et al.
patent: 2003/0125040 (2003-07-01), Walton et al.
patent: 2003/0161412 (2003-08-01), Niida et al.
patent: 2003/0210750 (2003-11-01), Onggosanusi et al.
patent: 2004/0002364 (2004-01-01), Trikkonen et al.
Jack Salz, et al, “Effect of Fading Correlation on Adaptive Arrays in Digital Mobile Radio”,IEEE Transactions on Vehicular Technology, vol. 43, No. 4, (Nov. 1994), pp. 1049-1957.
Da-Shan Shiu, et al, “Fading Correlation and Its Effect on the Capacity of Multielement Antenna Systems”,IEEE Transactions on Communications, vol. 48, No. 3, (Mar. 2000), pp. 502-513.
Helmut Bolcskei, et al, “Performance of Space-Time Codes in the Presence of Spatial Fading Correlation”,IEEE 2000, pp. 687-693.
Angeliki Alexiou, “Realistic Channel Model Considerations in UMTS Downlink Capacity with Space-Time Block Coding”, 3rdIEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, Taoyuan, Taiwan, (3/23-23/01), pp. 275-278.
Christopher Brunner, et al, “Downlink Eigenbeamforming in WCDMA”,Munich University of Technology, D-80290 Munich, Germany.
Hemanth Sampath, et al, “Linear Precoding for Space-Time Coded Systems With Known Fading Correlations”,IEEE Communications Letters, vol. 6, No. 6, (Jun. 2002), pp. 239-241.
Vahid Tarokh, et al, “Space-Time Block Codes from Orthogonal Designs”,IEEE Transactions on Information Theory, vol. 45, No. 5, (Jul. 1999), pp. 1456-1467.
Louay M.A. Jalloul, et al, “Performance Analysis of CDMA Transmit Diversity Methods”, IEEE 1999, pp. 1326-1330.
Alexiou Angeliki
Qaddi Mohammed
Lucent Technologies - Inc.
Nguyen Simon
LandOfFree
Method of compensating for correlation between multiple... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of compensating for correlation between multiple..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of compensating for correlation between multiple... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3628356