CmacSap
AsSap
UeRrc
RrcSap
EnbRrc
Connect
StartContentionBasedRandomAccessPro cedure
UE sends RA preamble and receives RAR with T-C-RNTI
SetTemporaryCellRnti
send RRC CONNECTION REQU …
recv RRC CONNECTION SETUP
recv RRC CONNECTION REQUE …
send RRC CONNECTION SETUP
send RRC CONNECTION SETUP COMPL …
recv RRC CONNECTION SETUP CO LETED
MP