1. An SDN-based approach for OmniRAN Reference Point mapping
Date: [ ]
Authors:
Name
Affiliation
Phone
Antonio de la Oliva
UC3M
Juan Carlos Zúñiga
InterDigital
Charles Perkins
Futurewei
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Abstract
This presentation extends SDN use case with the mapping to OMNIRAN Reference Points.

2. An SDN-based approach for OmniRAN Reference Point Mapping
OmniRAN use case contribution

3. Heterogeneous Networking w/ OmniRAN

4. Reference Model for OMNIRAN over SDN
sdf
sdf
Access
Core Op A
Terminal
Core Op B
Internet
Access
Access
Core Op C
Access Infrastructure Operators
Traditional Operators

5. Reference Model (Access Infrastructure operator with data and control split)
sdf
Access
Access
Backhaul
Access
Access
Access
Access
SDN
Controller
AAA
Access Infrastructure Operators
Access Infrastructure Operators
Data path
Control path

6. Reference Points R1: Access link, technology specific
R2: User & terminal authentication, subscription & terminal management
All these operations are provided through a separated control path. Required signaling is forwarded to the corresponding operator.
R3: Authorization, service management, user data connection, mobility support, accounting, location
This reference point is composed of control and data paths. Control needs to impact data path for e.g., mobility, and configure accordingly the access network (e.g., ACLs). Possible extension of SDN concepts for configuration of access network.
R4: Inter-access network coordination and cooperation, fast inter-technology handover
SDN based forwarding state between different RANs
R5: Inter-operator roaming control interface
Inter-operator roaming plus access infrastructure sharing.

7. R1
sdf
Access
Core Op A
Backhaul
Terminal R1
Core Op B
Internet
Access
Access
SDN
Controller
AAA
Core Op C
Traditional Operators
Access Infrastructure Operators
R1:
Access link
SDN based interaction between infrastructure and wireless link

8. R2 sdf R2 R2: Control path only Access Backhaul Terminal Access Access
Core Op A
Backhaul
Terminal
Core Op B
Internet
Access R2
Access
SDN
Controller
AAA
Core Op C
Traditional Operators
Access Infrastructure Operators
R2:
Control path only

9. R3
sdf
Access
Core Op A
Backhaul
Terminal
Core Op B
Internet
Access R3
Access
SDN
Controller
AAA
Core Op C
Traditional Operators
Access Infrastructure Operators
R3:
Data (e.g., mobility) and Control (e.g., configuration) path

10. R4 sdf R4 R4: Data (e.g., fast handover) and Control (e.g., ICI) path
Access
Core Op A
Backhaul R4
Terminal
Core Op B
Internet
Access
ICI: Inter-cell interference
Access
SDN
Controller
AAA
Core Op C
Traditional Operators
Access Infrastructure Operators
R4:
Data (e.g., fast handover) and Control (e.g., ICI) path

11. R5 sdf R5 R5 R5: Data path: Roaming between operators
Access
Core Op A
Backhaul R5
Terminal
Core Op B
Internet
Access R5
Access
SDN
Controller
AAA
Core Op C
Traditional Operators
Access Infrastructure Operators
R5:
Data path: Roaming between operators
Control path: Roaming between operator + infrastructure sharing

12. Reference Points R1: Access link, technology specific
R2: User & terminal authentication, subscription & terminal management
This reference point can be implemented as a control path up to an AAA server provided by the Access operator. Then the signaling is forwarded to the appropriate AAA server of the corresponding operator
R3: Authorization, service management, user data connection, mobility support, accounting, location
This reference point can be implemented based on a SDN controller. The SDN controller can configure the underlying network so the user is authorized (adding MAC to APs), managing mobility (reconfiguring forwarding path per user), accounting (counters per forwarding table)..
R3 can also be extended for supporting configuration of the RAN
R4: Inter-access network coordination and cooperation, fast inter-technology handover
SDN based forwarding state between different RANs
R5: Inter-operator roaming control interface
Inter-operator roaming plus access infrastructure sharing.