| 摘要 |
The present invention relates a frequency down-conversion apparatus and method for converting an Intermediate Frequency (IF) signal into a baseband signal in a wireless communication system. The present invention demodulates an IQ signal having an Intermediate Frequency (IF), received from a Radio Frequency (RF) unit, into an I signal and a Q signal having a baseband frequency, performs half -band filtering on the demodulated I signal and Q signal, and generates frequency down-converted I signal and Q signal with the baseband frequency by performing channel filtering on an I signal and Q signal performed the half -band filtering.
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