APPARATUS AND METHOD FOR PERFORMING CHANNEL CODING AND DECODING

摘要

An encoding apparatus for use in a radio transmitter has a unit for turbo-SPC encoding a plurality of information bits which bits constitute a transmit signal, and deriving at least one set of redundant bits from one set of the information bits; and a redundancy-adjusting unit for decreasing or increasing the redundant bits according to a channel-encoding rate designated by a control signal, and adjusting the ratio of the number of the information bits to the number of the redundant bits. At least some of the redundant bits decreased or increased by the redundancy-adjusting unit are derived from an identical set of the information bits.