Determining channel characteristics in a space-time architecture wireless communication system having multi-element antennas
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United States of America Patent
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Oct 23, 2001
Grant Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Jul 10, 1998
priority date (Note) -
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Abstract
Channel propagation characteristics in a wireless communication system, wherein plural communication links or channels are defined between multiple transmit antenna elements and multiple receive antenna elements, are determined by selecting a matrix of training signals for transmission from the transmit antenna elements, and providing information concerning the selected training signal matrix to a system receiver. The training signals are transmitted from the transmit antenna elements to the receive antenna elements in a determined sequence during a defined training signal time interval, and signals corresponding to the training signals are received via the receive antenna elements. Components of a propagation characteristic matrix for use in discriminating signals transmitted at times other than the training signal time interval, are determined at the receiver as a function of signals received during the training signal time interval and the information concerning the matrix of training signals.
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