在3GPP 212协议中说编码复用知识针对DCH, RACH, BCH, FACH and PCH等传输信道，那么CPICH、PICH以及SCH是否还要经过编码复用这些步骤。
协议描述如下：
4.2
Generalcoding/multiplexing of TrCHsThis section only applies to the transportchannels: DCH, RACH, BCH, FACH and PCH. Other transport channels which do notuse the general method are described separately below.