Telecommunications – Transmitter and receiver at separate stations
Reexamination Certificate
2007-03-20
2007-03-20
Nguyen, Simon (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
C455S101000, C455S522000, C455S562100, C375S299000
Reexamination Certificate
active
10627537
ABSTRACT:
A system, method and device for MIMO radio communication of multiple signals between a first device having N plurality of antennas and a second device having M plurality of antennas. At the first device, a vector s representing L signals [s1. . . sL] to be transmitted is processed with a transmit matrix A to maximize capacity of the channel between the first device and the second device subject to a power constraint that the power emitted by each of the N antennas is less than or equal to a maximum power. The power constraint for each antenna may be the same for all antennas or specific or different for each antenna. For example, the power constraint for each antenna may be equal to a total maximum power emitted by all of the N antennas combined divided by N. The transmit matrix A distributes the L signals [s1. . . sL] among the N plurality of antennas for simultaneous transmission to the second device. At the second device, the signals received by the M plurality of antennas are processed with receive weights and the resulting signals are combined to recover the L signals.
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Sugar Gary L.
Vaidyanathan Chandra
IPR Licensing Inc.
Nguyen Simon
Volpe and Koenig P.C.
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