Know the important entity of ENDC operation in NSA Deployment (Option 3) through below diagram.
Important Entity
- NSA: Non Standalone
- ENDC: E-utran New Radio Dual Connectivity
- MCG : Master Cell Group
- SCG: Secondary Cell Group
- PCell : Primary Cell of Master RAN Node
- PSCell : Primary Cell of Secondary RAN Node
- Scell : Secondary Cell of Master and Secondary RAN Node
- SpCell: Special Cell
User Plane Radio Bearer: MCG Bearer, SCG Bearer, Split Bearer (MCG Split Bearer, SCG Split Bearer)
Control Plane SRB Split : SRB 1 & SRB 2 can be configured as a split bearer for control information. SRB 0 and SRB 3 can not be configured for split option.
SRB 3 is optional that can be used in ENDC operation for direct communication between secondary node and UE.
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