Antenna selection and training using a spatial spreading...

Pulse or digital communications – Transmitters – Plural diversity

Reexamination Certificate

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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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International Preliminary Examination Report in corresponding PCT/US08/60903 dated Oct. 20, 2009.

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