Patent ID: 6628707
Filing Date: 2003-09-30
Classification: H04L

Abstract:
A method for receiving and decoding burst radio signals from multiple sources, the method comprising:receiving bursts of radio signals on a plurality of radio links in a radio system; compensating amplitude and delay distortions for each radio link from a received burst on the plurality of radio links using a non-adaptive equalizer, a first adaptive equalizer I, a second adaptive equalizer II, the equalizers being K/M fractionally-spaced, K and M being integers and K&lE;M; pre-equalizing a received burst of a radio link using the non-adaptive equalizer, wherein tap coefficients of the non-adaptive equalizer are obtained from the adaptive equalizer II operated on a previous received burst of the radio link; estimating and removing carrier phase offset for the received burst; estimating initial tap coefficient values of the adaptive equalizer II using the first adaptive equalizer I operating on the current burst of a present radio link; adaptively equalizing a delayed version of the current burst using the adaptive equalizer II with the estimated tap coefficient values; storing the estimated tap coefficient values of the adaptive equalizer II into a memory unit at the end of the current burst of the operating radio link; and retrieving stored tap coefficients of an adaptive equalizer II from the memory unit into the non-adaptive equalizer to pre-compensate any residual amplitude and delay distortion of a next received burst on each radio link.