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Network Slicing - Coggle Diagram
Network Slicing
Core network slicing
EPC virtualization
Multiple instances of vEPC
Control plane and data plane orchestration
Enabling end-to-end connectivity
Delicated core networks
Network selection: DECOR&eDECOR
Next generation 5G core network
Point-to-point model
Service-oriented model
Tailored NF functions
Reduce complexity by sharing AUSF& UDM
Reduce signaling over the air
Manage a common software
Network exposure function
Basic or passive level control
Extended control and management
Full control and management
Slice discovery & selection
Network slice selection assistance information: type/differentiator
Network slice selection policy
Multiple slice connectivity
RAN Slicing
Slicing requirement at RAN domain
Dynamic resource management: on-demand
Resource isolation and sharing: multiplexing gains
Function requirements: distinct VNF placement
Slice resource management & isolation
delicated resource model
shared resource model
RAN Programming
Flexible RAN virtualization & functional split
PHY-layer option:
MAC-layer option: BBU(MAC and above, real-time schedule), common MAC, need low-latency fronthual
RLC-layer option: RRH(real time scheduling)
PDCP layer option: aggregation of different RRH technologies
Example
uRLLC: RAN on RRH
eMBB: most on BBU
5G slicing & fronthual/backhaul integration
heterogenous protocol: multi-protocol label switching (MPLS)
stringent RAN: deterministic networking