Selection of user-specific transmission parameters for optimization of transmit performance in wireless communications using a common pilot channel
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United States of America Patent
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Mar 11, 2008
Grant Date -
N/A
app pub date -
Jun 28, 2002
filing date -
Jun 28, 2002
priority date (Note) -
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Abstract
A method and apparatus are provided that optimizes a transmitted user-specific signal. In one embodiment, the invention includes receiving signals from a remote radio, deriving estimates of receive channels corresponding to the received signals using the received signals, deriving a model of an expected transmit channel to the remote radio based on the receive channel estimates, deriving a set of transmit parameters to be applied to an array of transmit antennas to transmit a signal to the remote radio by optimizing a transmit power criteria using the model of the expected transmit channel and constraints on the estimated quality of a signal transmitted over the expected transmit channel, and transmitting to the remote radio by applying the derived set of transmit parameters to the transmit antenna array.
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