Patent ID: 7450911
Filing Date: 2008-11-11
Classification: H04B,H04L

Abstract:
1. A signal processing system for a wireless communication system, said signal processing system comprising: a baseband receiver having two or more control inputs and a status output; a transmit modulator having a quadrature input, one or more control inputs, and a status output; a baseband transmit processor having a quadrature output, a control output, a status input, and a transmit enable output; a baseband receive processor having at least two control outputs and a status input; a first multiplexer having an output, said output selecting either: one of said baseband receive processor control outputs or one of said baseband transmit processor quadrature outputs, said first multiplexer making a selection based on said transmit enable, said first multiplexer output coupled to a first digital to analog converter (DAC), said first DAC output coupled to one of said transmit modulator quadrature inputs and also to one of said baseband receiver control inputs; a second multiplexer having an output, said output selecting either: other said baseband receive processor control output or the other said baseband transmit processor quadrature output, said second multiplexer making a selection based on said transmit enable, said second multiplexer output coupled to the input of a second digital to analog converter (DAC), and delivering the output of said second DAC to the other of said transmit modulator quadrature inputs and also to the other of said baseband receiver control inputs; a third multiplexer having an output, said output selecting either said baseband receiver status output or said transmit modulator output, said third multiplexer output selection based on said transmit enable, said third multiplexer output coupled to a first analog to digital converter, the output of said analog to digital converter coupled to said baseband receive processor status input and also to said baseband transmit processor status input.