| 摘要 |
The disclosure discloses a signal processing method for a Long Term Evolution (LTE) base station side, wherein the method includes the following steps: in a downlink signal direction, filtering downlink signals at a baseband side to remove high frequency sub-carrier components, and extracting signals from the filtered signals with an extracting frequency fsd, wherein fw@fsd<(128/75)*fw, and fw is the frequency spectrum bandwidth of the LTE; in an uplink signal direction, first performing interpolation on uplink signals to increase the signal frequency, and then filtering the signals to add high frequency sub-carrier components. The method of the disclosure can effectively reduce the transmission rate of a baseband radio frequency interface without increasing the complexity of a radio frequency side. The disclosure further discloses a corresponding signal processing device for an LTE base station side, and the device includes a downlink filter, an extractor, an interpolator, an uplink filter, a frequency domain inverse transformation module and a frequency domain transformation module, all of which are set at the baseband side.
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