| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention relates to communication engineering and may be used in mobile communication systems. 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, where 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 device includes a downlink filter, an extractor, an interpolator, an uplink filter, a frequency domain inverse transformation module and a frequency domain transformation module.EFFECT: increasing throughput of transmission channels by reducing data rate on the baseband interface and radio frequency.10 cl, 5 dwg |
