| The study of the 3rd generation (3G) mobile telecommunications systems WCDMA is a hotspot nowadays,whereas channel coding is one of its key technologies.The 3G channel coding technology inherits the Forward Error Control (FEC) convolutional codes of 2G systems in voice services.Moreover,in order to carry various services such as high-speed data and multimedia services,channel coding scheme must be considered synthetically with other technologies,i.e.service multiplexing and rate matching etc.Automatic Repeat Request (ARQ) might be used in error control technology.The FEC technologies adopt advanced codes including serial concatenated RS codes and Turbo codes,especially Turbo codes which play important roles in error control technology in WCDMA. |
