Pulse or digital communications – Transmitters
Reexamination Certificate
2007-12-03
2011-10-18
Ha, Dac (Department: 2611)
Pulse or digital communications
Transmitters
C375S219000, C375S222000
Reexamination Certificate
active
08040970
ABSTRACT:
A multi input multi output (MIMO) transceiver having a channel estimation module being responsive to received samples including channel state information (CSI) and operative to generate time domain beamforming parameters, in accordance with an embodiment of the present invention. The multi input multi output (MIMO) transceiver further includes an adaptive beamforming parameters module coupled to receive said time domain beamforming parameters and operative to generate time domain adaptive beamforming parameters, said adaptive beamforming parameters module operative to process said time domain beamforming parameters to generate frequency domain adaptive beamforming parameters, a decoding module coupled to receive said frequency domain adaptive beamforming parameters and operative to generate data bits, a channel parameters module coupled to receive said data bits and operative to extract said time domain adaptive beamforming parameters, an encoding module coupled to receive said time domain adaptive beamforming parameters and operative to generate a data packet, said encoding module operative to encode said data packet to generate a modulated data stream, and a beamform matrices module coupled to receive said modulated data stream and operative to generate a beamformed data stream based on said frequency domain adaptive beamforming parameters, said MIMO transceiver operative to process said beamformed data stream to generate output signals and to transmit said output signals by forming beam patterns.
REFERENCES:
patent: 2007/0064830 (2007-03-01), Choi et al.
patent: 2007/0127588 (2007-06-01), Kim
Hidehiro Matsuoka, Hideo Kasami, Makoto Tsurata, and Hiroki Shoki, A Smart antenna with pre-and post-FFT hybrid domain beamforming for broadband OFDM system, IEEE 2006.
Draft Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks-Specific Requirements, IEEE 802.11n Draft 2.0, Feb. 2007.
“On Channel Estimation in OFDM Systems,” Edfors, Ove et al., VTC96, 1995, pp. 1-5, Conference Paper.
“Simplified Channel Estimation for OFDM Systems with Multiple Transmit Antennae,” Li Ye, IEEE Transactions on Wireless Communications, vol. 1, No. 1, pp. 67-75, Jan. 2002.
“Digital Communication Receivers,” Meyr, Heinrich et al., pp. 505-530, 1998, John Wiley and Sons, Inc., New York, NY USA.
Ha Dac
Imam Maryam
IPxLAW Group LLP
Ralink Technology Corporation
Shah Tanmay
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