Radio reception system that can remove interference signal component
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United States of America Patent
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Feb 24, 2009
Grant Date -
Feb 8, 2007
app pub date -
Oct 16, 2006
filing date -
Dec 4, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a reception system of a base station according to the communication system of a PDMA, CDMA and the like, the reception signals from a plurality of users received on a plurality of antennas are frequency-converted by a frequency conversion circuit, and then converted into digital signals by an A/D converter to be applied to a DSP. The signal of a particular user is extracted from the input signal by an adaptive array. Also, the interference user signal component is removed by an interference canceller. Accordingly, the signal component of a desired user having the interference component caused by an unrequired user signal suppressed is output. Thus, the communication quality in a radio communication system such as a mobile communication system can be improved.
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