Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2004-07-02
2010-06-15
Perilla, Jason M. (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S295000, C375S296000, C375S316000, C375S346000, C375S347000, C375S349000
Reexamination Certificate
active
07738595
ABSTRACT:
Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and steer beam nulls, such that each transmitted signal is substantially decoupled from all other signals between a MIMO transmitter a MIMO receiver. In another embodiment, the weights are selected such that, the signal strength of each weighted signal transmitted through a communications channel along a respective signal path is substantially equivalent, but for which the weighting vectors are not necessarily orthogonal. In a further embodiment, each transmitted signal is coupled only between its own transmitter and receiver antennas with a gain, or eigenvalue, that is a consequence of the weights, and which is bounded to within a desired range of values while at the same time the weighing vectors are orthogonal. Embodiments employing successive decomposition are also provided.
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Perilla Jason M.
Stolowitz Ford Cowger LLP
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