Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-09-26
2006-09-26
Nguyen, Lee (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S069000, C370S334000, C375S267000
Reexamination Certificate
active
07113808
ABSTRACT:
An apparatus and method for transmitting and receiving signals using multi-antennas are disclosed. The signal transmitting apparatus for transmitting signals to a plurality of receiving apparatuses, using multi-antennas, includes: a V generator which generates a beamforming matrix V for a predetermined channel; a water filling unit which does not perform water filling for a training signal that is pre-known by the receiving apparatuses, and performs water filling for a user signal to be transmitted by using the V matrix and predetermined control values; a V operation unit, which multiplies a signal output from the water filling unit by the V matrix and transmits the multiplied result through the multi-antennas; and a control value detector, which extracts the control values from signals received from the receiving apparatuses through the multi-antennas, and outputs a maximum value among the extracted values to the water filling unit.
REFERENCES:
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Barroso et al.—Blind Identification of MIMO Channels, etc . . . , 1999, pp. 70-74.
Khalighi, et al., “Water Filling Capacity of Rayleigh MIMO Channels”, 12th IEEE Intnl. Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2001, Proceedings, vol. 1, pp. A155-A158 (Sep. 30, 2001).
Sampath, et al., “Joint Transmit and Receive Optimization for High Data Rate Wireless Communication Using Multiple Antennas”, Signals, and Computers, 1999, Conference Record of the 33rd Asilomar Conference, IEEE, Piscataway, NJ, USA, IEEE, vol. 1, pp. 215-219, (Oct. 24, 1999).
Zhou, Shengli, et al., “Optical Transmitter Eigen-Beamforming and Space Time Block Coding Based on Channel Mean”, IEEE Intnl. Conference on Acoustics, Speech, & Signal Processing (ICASSP), Orlando, FL, USA, IEEE, vol. 4, pp. III.2852-III.2856 (May 13, 2002).
Chung Jae-Hak
Hwang Chan-Soo
Lee & Morse P.C.
Nguyen Lee
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