A turbo channel encoding/decoding device for a CDMA communication system. The
device
segments an input frame into multiple sub frames of an appropriate length when
the input data frame is very long, and then encodes and decodes the sub frames.
Otherwise, when the input data frames are very short, the device composes input
frames into one super frame of an appropriate length and then encodes and decodes
the super frame. After frame encoding/decoding, the frames are recomposed into
the original input frames.