Two types: Physical Channel and Logical Channel
Physical channel: form the physical existence of the Uu interface between
the UE domain and access domain.
– Different kind of bandwidth allocated for different purposes.
• RNC deals with transport channels: carry different information flows over
the Uu interface and the physical elements.
• Logical channels: different tasks the network and the terminal should
perform in different moments of time.
– These structures are mapped to transport channels.
