High data CDMA wireless communication system using variable sized channel codes
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United States of America Patent
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Jan 13, 2004
Issued Date -
N/A
app pub date -
Feb 15, 2001
filing date -
May 28, 1996
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Abstract
A method and apparatus for demodulation in high rate CDMA wireless communication is described. In a described high rate CDMA wireless system, a transmitter forms a set of individually gain adjusted subscriber channels using a set of orthogonal subchannel codes having a small number of PN spreading chips per orthogonal waveform period. An illustrative high rate CDMA wireless system uses Walsh codes, each having a duration of fewer than sixty-four chips per orthogonal waveform period. A receiver demodulates each of the subscriber channels using the same orthogonal subchannel codes.
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