Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2011-07-12
2011-07-12
Ha, Dac V (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S146000, C375S219000, C375S267000, C455S101000
Reexamination Certificate
active
07978784
ABSTRACT:
A wireless communication system and method uses a spatial spreading matrix to distribute the encoded spatial data streams to a number of transmit chains and further uses the spatial spreading matrix for antenna selection computation in a transmitter. The spatial spreading matrix is designed such that a receiver is able to know and utilize the spatial spreading matrix for computing transmission antenna selection, receiver antenna selection and joint transmission/receiving antenna selection. The use of this spatial spreading matrix for antenna selection computation provides increased accuracy in antenna selection for transmission of spatial data streams, where the number of spatial data streams is less than the number of transmit or receive chains between the transmitter and receiver, and the number of transmit or receive chains is less than the corresponding transmission or receiving antennas.
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Nabar Rohit U.
Zhang Hongyuan
Ha Dac V
Marvell International Ltd.
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