CDMA mobile station apparatus
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United States of America Patent
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Oct 12, 2004
Grant Date -
N/A
app pub date -
Sep 15, 2000
filing date -
Sep 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A CDMA mobile station apparatus receives a spread control signal including a non-orthogonal spread signal generated using a non-orthogonal spreading code which is non-orthogonal with a data signal spreading code and a spread data signal produced by spreading a data signal with a data signal spreading code from a base station apparatus via a radio link. The mobile station apparatus has a non-orthogonal spread signal generating unit for generating a non-orthogonal spread signal whose phase rotation caused by a radio transmission path is compensated for using a non-orthogonal spreading code, a subtracting unit for subtracting the generated non-orthogonal spread signal from the received signal to generate a difference signal, and a data signal demodulating unit for demodulating the difference signal into a data signal. The mobile station apparatus is capable of canceling an entire spread broadcasting signal, processing a band-limited signal, or processing a spreading code with a suppression coefficient.
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