| 摘要 |
The present invention relates a frequency up-conversion apparatus and method for converting a baseband signal into an Intermediate Frequency (IF) signal in a wireless communication system. The present invention performs channel filtering on an I signal and a Q signal having a baseband frequency, received from a channel card, performs half -band filtering on an I signal and Q signal performed the channel filtering, modulates an I signal and Q signal performed the half-band filtering into an IQ signal having a first Intermediate Frequency (IF), up-con verts the IQ signal having the first IF into an IQ signal having a second IF higher than the first IF, and converts one of the up-converted IQ signal and the I signal and Q signal performed the half-band filtering into an analog signal.
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