Method and system for minimizing effects of transmitter...

Details Method and system for minimizing effects of transmitter... Method and system for minimizing effects of transmitter...

2006-06-08

2010-02-16

Phu, Phuong (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S260000, C375S267000, C375S299000, C455S101000, C455S501000, C455S500000

Reexamination Certificate

active

07664200

ABSTRACT:
Aspects of a method and system for minimizing effects of transmitter impairments in multiple input multiple output (MIMO) beamforming communication systems are presented. In one aspect of a system for minimizing effects of transmitter impairments, a MIMO transmitter may enable nulling of transmitter-induced noise by adjusting at least a portion of a plurality of signals transmitted based on a transmitter error vector magnitude (EVM). The transmitter may enable transmission of the plurality of signals subsequent to the nulling. In another aspect of a system for minimizing effects of transmitter impairments a MIMO receiver may enable nulling of transmitter-induced noise contained in a plurality of received signals based on a transmitter EVM. Each of the plurality of received signals may include information contained in a plurality of spatial streams. The receiver may enable detecting estimated values for the information contained in the plurality of spatial streams based on the nulling.

REFERENCES:
patent: 2008/0112504 (2008-05-01), Jiang et al.
Yi Jiang et al., “Uniform Channel decomposition for MIMO Communications,” IEEE Transactions on Signal Porcessing, vol. 53, No. 11, Nov. 2005, pp. 4283-4294.

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