Bi-orthogonal code division multiple access system
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United States of America Patent
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Mar 6, 2001
Grant Date -
N/A
app pub date -
Feb 27, 1998
filing date -
Feb 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention assigns a pair of user ID's to each user. The user ID's are used as addresses to access two orthogonal Walsh codes in a memory. Each Walsh code is 2.sup.n -bits in length and the memory size is 2.sup.n.times.2.sup.n. The orthogonal codes are then used to cover the information symbols for transmission. This results in the transmitted signal being orthogonal to other users and also orthogonal within the transmitting user's own signal bursts.
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