Patent ID: 6366624
Filing Date: 2002-04-02
Classification: H04L

Abstract:
A method for receiving a modulated signal including a plurality of sequentially transmitted slots containing symbols representing encoded bits corresponding to a first subset of bits from a data frame and unencoded bits corresponding to a second subset of bits from the data frame, the method comprising the steps of:receiving a first slot; demodulating the first slot to provide a first slot estimate having encoded bit positions and unencoded bit positions; decoding the encoded bit positions of the first slot estimate to provide first decoded bit estimates; and then constrained demodulating the first slot to provide a second slot estimate having encoded bit positions and unencoded bit positions, wherein the second slot estimate of encoded bit positions is constrained according to the first decoded bit estimates; decoding the encoded bit positions of the second slot estimate to provide second decoded bit estimates; and combining the second decoded bit estimates and the unencoded bit positions of the second slot estimate to provide a received data frame estimate.