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- UPF Distribution/Shunting capability -- distributing User Plane Functions in appropriate Data Center Facilities on qualified compute hardware for routing the traffic to desired applications and network/processing functions/applications.
- Local Break-Out (LBO) – Examples: video traffic offload, low latency services, roaming optimization.
The UPF Distribution use case distinguishes between two scenarios:
- UPF Interconnection. The UPF/SPGW-U is located in the MNO network and needs to be interconnected on the N6/SGi interface to 3PE and/or PCE/PCC.
- UPF Placement. The MNO wants to instantiate a UPF/SPGW-U in a location that is different from their network (e.g. Customer Premises, 3rd Party Data Center)
UPF Interconnection Scenario
Assumptions:
- MNO hosts UPF/SPGW-U in their network.
- MNO provisions all UPF functions.
- MNO may request UPF Interconnection for Sgi/N6 interface in a required Metro to 3PE/PCE via APIs (on P2)
- Bare Metal Orchestration Provider and Interconnect Provider expose Data Center Location / Metro to PCEI Enabler via APIs (on P3 and P4)
- 3PE and PCE providers expose Data Center Location / Metro to PCEI Enabler via APIs (on P5 and P8/P7)
- PCEI Enabler may request Bare Metal Orchestration for Distributed UPF via APIs (on P3)
- PCEI Enabler may request Interconnect for MNO UPF (L2/L3) via APIs (on P4)
- PCEI Enabler may request PCC/PCE and/or 3PE Controller to instantiate workload instances for LBO processing via APIs (on P8/P5)
UPF Interconnection (N6/SGi) Call Flow Sketch
Notes:
- Does not include interconnect to 3PE/PCE/PCC - to be added
- Does not include 3PE HW Or chestartion - to be added
UPF Placement Scenario
Assumptions:
- MNO supports CUPS (5G NSA) and/or UPF (5G SA).
- MNO can request UPF Location / Metro and 3PE/PCE Location / Metro via APIs (on P2)
- Bare Metal Orchestration Provider and Interconnect Provider expose Data Center Location / Metro to PCEI Enabler via APIs (on P3 and P4)
- 3PE and PCE providers expose Data Center Location / Metro to PCEI Enabler via APIs (on P5 and P8/P7)
- PCEI Enabler can request Bare Metal Orchestration for Distributed UPF via APIs (on P3)
- PCEI Enabler can request Interconnect for Distributed UPF (L2/L3) via APIs (on P4)
- PCEI Enabler may provision UPF connectivity and LBO configuration (based on the UPF provisioning model) over P2’ using appropriate protocols
- PCEI Enabler may request PCC/PCE and/or 3PE Controller to instantiate workload instances for LBO processing via APIs (on P8/P5)
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