5G NR-DC/NRDC Introduction 1.0 #NR #5G
Background: NRDC comes under the umbrella of dual connectivity. Dual connectivity option was first introduced in LTE (Rel 12), where a UE can be connected to two eNB nodes. In rel-15 this feature was expanded to NR as well where connected nodes can be LTE-NR or NR-NR. 2 nodes are connected using non-ideal backhaul. Earlier this feature was called Multi RAT dual connectivity but now being called Mult Radio Dual Connectivity (MR-DC). MRDC broadly classified into two types: 1. Core node EPC · ENDC (EUTRA-NR Dual connectivity) 2 . Core node 5GC · NEDC (NR-EUTRA Dual connectivity) · NGENDC (New radio EUTA-NR dual connectivity) · NRDC (NR-NR dual connectivity Different Deployment options as per 3GPP: NRDC (Ne...