Patent ID: 6862706
Filing Date: 2005-03-01
Classification: H03M

Abstract:
1. A method for terminating two or more constituent encoders of a turbo encoder employing a turbo code, the method comprising: generating tail input bits at each of two or more constituent encoders by deriving the tail input bits from each of the two or more constituent encoders separately for each constituent encoder from contents of shift registers within each of the two or more constituent encoders, after an encoding of information bits by the two or more constituent encoders; transmitting tail output bits from a first X(t) output branch and from a second Y transmitting tail output bits from a third X(t) output branch and from a fourth Y puncturing one or more tail output bits such that 1/R tail output bits are transmitted for each of a plurality of trellis branches, wherein R is a turbo code rate employed by the turbo encoder during an information bit transmission.