If UE is capable to recevie MBMS service, it reads SIB13 which contains minimal and essential MBMS control information.
eNodeB supports one logical multicast control channel (MCCH) per MBSFN Area. This is downlink only channel and carries MBSFN Area Configuration. Logical Multicast channel is mapped to MCH transport which in turn mapped to phsyical multicast channel (PMCH).
