Method for 2D antenna rake combining in a code division multiple access system
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United States of America Patent
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Mar 3, 2009
Grant Date -
Aug 2, 2007
app pub date -
Jan 8, 2007
filing date -
Sep 10, 2001
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Abstract
One aspect of the present invention is a method for combining a direct sequence spread spectrum signal comprising signal components that each may be characterized with a space variable and a time variable comprising the steps of: despreading said signal components; and determining a set of combining coefficients from said signal components using a Minimum Mean Square Error combining method that considers said space and time variables of the signal components in parallel. The Minimum Mean Square Error combining methods may utilize iterative methods such as the Least Mean Squares method or the Recursive Least Squares method.
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