Method and apparatus for time aligning signals for reception in a code-division multiple access communication system
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United States of America Patent
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Aug 29, 1995
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N/A
app pub date -
Nov 30, 1993
filing date -
Nov 30, 1993
priority date (Note) -
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Abstract
A coherent reverse channel, a per-chip spreading function, orthogonal spreading functions and a time alignment of all traffic channels are implemented such that the main signal of each channel arrives at a base-station within a fraction of a chip of one another in accordance with the invention. With this, the orthogonality among all channels is maintained, and, when demodulated, all channels except the channel of interest provides a cross-correlation of substantially zero with respect to the remaining signals.
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