Patent ID: 6092234
Filing Date: 2000-07-18
Classification: H03M

Abstract:
A method for determining a metric value threshold to be set to a Viterbi decoder for a receiver which receives and decodes transmitted signals convolutionally encoded using a plurality of coding rates in transmitters, the method comprising the steps of:setting one of the plurality of coding rates to said Viterbi decoder, said plurality of coding rates used for convolutionally encoding in the transmitters;convolutionally encoding signals using each coding rate, said each coding rate selected from others than said one of said plurality of coding rates set to said Viterbi decoder;decoding each of the signals convolutionally encoded with said each coding rate using the Viterbi algorithm in said Viterbi decoder, generating metric values, and outputting each of said generated metric values; anddetermining a metric value threshold to be set to said Viterbi decoder, based on said generated metric values.