Ccch

Some articles on ccch:

Um Interface - Um Logical Channels - Allowed Channel Combinations
... Combination IV FCCH + SCH + BCCH + CCCH ... Combination V FCCH + SCH + BCCH + CCCH + 4 SDCCH + 2 SACCH ... cells, which allows the BTS to trade unnecessary CCCH capacity for a pool of 4 SDCCHs ...
Common Control Channels
... The Common Control Channel (CCCH) is responsible for transferring control information between all mobiles and the BTS ... following Active MS’s must frequently monitor both BCCH and CCCH ... The CCCH will be transmitted on the RF carrier with the BCCH ...