Antenna grouping and group-based enhancements for MIMO systems

Details Antenna grouping and group-based enhancements for MIMO systems Antenna grouping and group-based enhancements for MIMO systems

2011-06-14

2011-06-14

Wang, Ted M (Department: 2611)

Pulse or digital communications

Transmitters

C375S219000, C375S267000, C375S299000, C375S347000

Reexamination Certificate

active

07961810

ABSTRACT:
Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter has at least three transmit antennas and includes a feedback decoding portion configured to recover at least one group-based channel quality indicator provided by a feedback signal from a receiver, wherein each group-based channel quality indicator corresponds to one of a set of transmission layer groupings. The transmitter also includes a modulator portion configured to generate at least one symbol stream and a mapping portion configured to multiplex each symbol stream to at least one transmission layer grouping. The transmitter further includes a pre-coder portion configured to couple the transmission layers to the transmit antennas for a transmission. The receiver includes a decoder portion which is configured to use decoded signals from at least one group to decode the other groups.

REFERENCES:
patent: 7649831 (2010-01-01), Van Rensburg et al.
patent: 2006/0098568 (2006-05-01), Oh et al.
patent: 2006/0250941 (2006-11-01), Onggosanusi et al.
patent: 2006/0276212 (2006-12-01), Sampath et al.

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