• Network informs the UE about the radio environment. The information is
provided through the Broadcast Control Channel (BCCH)
– the code values in the cell and in the neighbouring cells, power levels …
• Paging in order to find out the actual location of the user. Th network request
is carried out in the logical channel Paging Control Channel (PCH).
• Task common for all UE residing in the cell. Common Control Channel
(CCCH). Since many users may use CCH simultaneously they are identified
by U-RNTI ( UTRAN Radio Network Temporary Identity).
• The control information of dedicated and active connection is send in
Dedicated Control Channel (DCCH).
• The dedicated user traffic in DL is sent through Dedicated Traffic Channel
(DTCH).
• In DL the information to all UE or a specific group of UE in the cell can be
transmitted on Common Traffic Channel (CTCH)
Functions using logical different channels
