传输信道和物理信道间的映射关系，下列描述正确的是（ ） Which of the following statements about the mapping relationship between the transmission channel and physical channel are correct? A.专用传输信道DCH映射到专用物理信道 (DPCH) The dedicated transmission channel DCH is mapped to the dedicated physical channel (DPCH) B.广播信道BCH映射到主公共控制物理信道 (P-CCPCH) The broadcast channel BCH I mapped to the primary common control physical channel (P-CCPCH) C.寻呼信道PCH和前向接入信道映射到FACH辅助公共控制物理信道 (S-CCPCH) The paging channel PCH and forward access channel are mapped to the FACH secondary common control physical channel (S-CCPCH) D.随机接入信道RACH映射到物理随机接入信道 (PRACH) The random access channel RACH is mapped to the physical random access channel (PRACH) E.快速接入信道映射到PACH快速物理接入信道 (FPACH) The fast access channel is mapped to the PACH fast physical access channel (FPACH)
