Patent ID: 7075967

Claim:
For use in a base station (BS) of a fixed wireless network capable of communicating with a plurality of subscriber transceivers via time division duplex (TDD) channels, a BS transceiver comprising: a receiver front-end capable of receiving data burst transmissions from said plurality of subscriber transceivers in an uplink portion of a TDD channel, wherein said receiver front-end demodulates said received data burst transmissions into a digital baseband signal in-phase I signal and a digital baseband quadrature (Q) signal; a first frequency domain feedforward equalization filter capable of receiving said I signal and performing a Fast Fourier Transform on a block of N symbols in said I signal to produce a first symbol estimate sequence; a second frequency domain feedforward equalization filter capable of receiving said Q signal and performing a Fast Fourier Transform on a block of N symbols in said Q signal to produce a second symbol estimate sequence; an adder capable of receiving said first symbol estimate sequence on a first input and said second symbol estimate sequence on a second input and producing a combined symbol estimate sequence; a slicer capable of receiving and quantizing said combined symbol estimate sequence to produce a sequence of decided symbols; and a time domain RAKE feedback filter capable of receiving said sequence of decided symbols and generating a symbol correction sequence that is applied to a third input of said adder.