METHOD AND APPARATUS FOR TRANSMITTER OPTIMIZATION BASED ON ALLOCATED TRANSMISSION BAND

摘要

First and second inputs are received. The first input indicates a frequency offset of a frequency band allocated for signal transmission. The said allocated band is a subband of a total band available for transmission. The second input indicates a bandwidth of the allocated band. One or more filters of a transmitter of a communications system are controlled to operate cumulatively in a lowpass filtering mode, wherein the highest frequency in a pass band in the lowpass filtering mode is less than the highest frequency of the total band available for transmission. A signal is filtered using the filter(s).

主权项

1. A method of operating a wireless communications system, the method comprising:
receiving a first input and a second input, wherein the first input indicates a frequency offset of a frequency band allocated for signal transmission, said allocated band is a subband of a total band available for transmission, and the second input indicates a bandwidth of said allocated band; determining whether the frequency offset is greater than a first threshold; responsive to a determination that the frequency offset is greater than the first threshold, controlling one or more filters of a transmitter of the communications system to operate cumulatively in a bandpass filtering mode, wherein the frequency offset is within a pass band in the bandpass filtering mode and said pass band is at least as wide as the allocated band; and filtering a signal using said one or more filters.