NR Radio Resource Control


NSA RACH procedure

LTE RRC connection RRC Connected mode Event B1/B2 UECapabilityEnquiry nr, eutra-nr UECapabilityInformation SgNBAdditionRequest CG-ConfigInfo SgNBAdditionRequestAcknowledge CG-Config [ RRC Reconfiguration ] RRC Connection Reconfiguration RRC Reconfiguration RRC Connection Reconfiguration Complete RRC Reconfiguration Complete SgNBReconfigurationComplete RRC Reconfiguration Complete Master Information Block Msg 1 PRACH preamble RA-RNTI Msg 2 Random Access Response PDCCH DCI 1_0 + PDSCH MAC RAR Msg 3 C-RNTI MAC CE PUSCH Msg 4 PDCCH + PDSCH (DCI 1_1) + PUSCH (DCI 0_1) DL / UL traffic UE SgNB MeNB