Patent ID: 7095792

Claim:
A method for generating a serial-concatenated channel-code at a predetermined code rate for transmission of a message via a channel, including a radio channel, which comprises the steps of: receiving a message signal to be coded; first channel-coding of the message signal by a first channel-coding stage, the first channel-coding stage being a systematic convolution coder outputting the message signal to include a systematic data sequence and a redundant data sequence; puncturing the systematic data sequence and the redundant data sequence; second channel-coding of the message signal by a second channel-coding stage resulting in a channel-coded message signal, the second channel-coding stage disposed on an output side of the first channel-coding stage; setting a code rate of the channel-coded message signal in a predetermined manner, using a controllable puncturer disposed in a signal path between the first and second channel-coding stages; and outputting the channel-coded message signal which has passed through both the first and second channel-coding stages.