Multiplex communications – Wide area network – Packet switching
Patent
1995-03-02
1996-11-26
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
375205, 375208, 375267, 375347, 375341, 375349, H04B 169, H04K 100
Patent
active
055793045
ABSTRACT:
A code-division multiple-access receiver carries out the following steps whenever it recognizes a symbol boundary in the received baseband signal. First, using the despreading code of the relevant station, it estimates the value of the symbol. Next, using the spreading code of the station, it estimates an interference signal, and modifies the baseband signal by subtracting the interference signal. These steps can be iterated for each symbol. The iterations can be organized into stages, with estimated symbol values from one stage passed to the next stage for use in estimating new symbol values in that next stage. At the end, the remaining baseband signal can be used to adjust the final estimated symbol values.
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Horiguchi Kenji
Kawasumi Ikuo
Sugimoto Hiroki
OKI Electric Industry Co., Ltd.
Olms Douglas W.
Rao Seema S.
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