E-UTRA Uplink Channel Structure TS36.321 Section 4.5 MAC specifications include the details about the mapping of logical channels onto transport channels, and TS36.212 Section 4 about the mapping of transport channels on physical channels.
Logical Channels:
Common Control Channel (CCCH)
– For Idle Mode (RRC_IDLE) connection establishment (e.g., call setup, registration)
Dedicated Control Channel (DCCH)
– For Connected Mode (RRC_CONNECTED) signaling
Dedicated Traffic Channel (DTCH)
– For Connected Mode (RRC_CONNECTED) user data traffic
Transport Channels:
Random Access Channel (RACH)
– Uplink random access
Uplink Shared Channel (UL-SCH)
– Signaling and traffic are multiplexed onto UL-SCH
Physical Channels:
Physical Random Access Channel (PRACH)
Physical Uplink Control Channel (PUCCH)
– For carrying physical control information – Uplink control information (UCI) if PUSCH is not configured
Physical Uplink Shared Channel (PUSCH)
– For carrying dedicated control/traffic as well as UCI