Method of chip interleaving in direct sequence spread spectrum communications
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United States of America Patent
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Oct 9, 2001
Issued Date -
N/A
app pub date -
Feb 29, 2000
filing date -
Mar 19, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of chip interleaving in direct sequence spread spectrum communications. A binary code sequence is chosen to have a length N=2.sup.k -1 and to be self-orthogonal. A data string of M=QN+1 bits, QN-1 bits, or QN+S bits, where Q is a positive integer and S is an integer between 1 and N that lacks a common factor with N, is multiplied sequentially with the binary code sequence until N chip frames of M chips each are produced. These chip frames are transmitted to a receiver, and recovered in an equally straightforward manner. The integers Q and N are chosen according to transmission conditions.
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