Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-03-20
2007-03-20
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S101000, C455S522000, C375S299000, C370S334000
Reexamination Certificate
active
10673224
ABSTRACT:
In the method, spatial steering of parallel symbol streams and a transmit power of each symbol stream is determined based on a statistical distribution of a channel. The determined spatial steering and transmit powers may then be applied by a transmitter to optimize the transmit signal.
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patent: 6763237 (2004-07-01), Katz
patent: 7020110 (2006-03-01), Walton et al.
Visotsky, Eugene et al.“Space-Time Transmit Precoding With Imperfect Feedback.” IEEE Transactions on Information Theory, vol. 47, No. 6, Sep. 2001, pp. 2632-2639.
Jorswieck, Eduard et al. “On Transmit Diversity With Imperfect Channel State Information.” Proceedings Of International Conference on Acouistics, Speech and Signal Processing. May 13, 2002, pp. 2181-2184.
Nabar, Rohit U. et al. “Transmit Optimization for Spatial Multiplexing in the Presence of Spatial Fading Correlation.” IEEE Global Telecommunications Conference, Nov. 25-29, 2001; pp. 131-135.
European Search Report, dated Jan. 26, 2005.
Lozano Angel
Tulino Antonia
Verdu Sergio
Haroon Adeel
Urban Edward F.
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