Patent ID: 8649459
Filing Date: 2014-02-11
Classification: H03M,H04L

Abstract:
1. A method of processing an input digital baseband signal for radio frequency transmission, the method comprising: first reducing, in an integrated circuit, a number of bits of the input digital baseband signal to generate a reduced input digital baseband signal; upsampling the reduced input digital baseband signal before filtering thereof; filtering, in the integrated circuit, the reduced input digital baseband signal after upsampling to generate a filtered digital baseband signal; second reducing, in the integrated circuit, a number of bits of the filtered digital baseband signal after said filtering to produce a bit-reduced digital baseband signal having a number of bits less than the input digital baseband signal; performing, in the integrated circuit, digital-to-analog conversion of the bit-reduced digital baseband signal to generate an analog baseband signal; and modulating, in the integrated circuit, the analog baseband signal onto a carrier to generate a transmission signal for radio frequency transmission.