Page 231 - 5G Basics - Core Network Aspects

Core network aspects 1

I.3 Implementation flows of traffic scheduling based on network awareness

S-NICE S-NICE S-NICE S-NICE
infrastructure controller orchestration infrastructure

1. Network topology, traffic,
network data and event
2. Traffic monitoring
and analyse
3. Retrieve service characters
and resource information
4. Response
5. Policy create and instruction request
6. Instruction
execution
7. Confirmation

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Figure I.3 – Implementation flows of traffic scheduling based on network awareness

Figure I.3 shows the implementation flows of traffic scheduling based on network awareness:
– 1: The S-NICE controller functions retrieve traffic related information from the S-NICE infrastructure
functions, including network topology, real time traffic status, etc.;
– 2: The S-NICE controller functions monitor and analyse these traffic information according to the
pre-defined rules, then decide if the traffic scheduling request is needed;
– 3-4: If needed, the S-NICE controller functions retrieve service characters (e.g., 5-tuple of service
servers) and resource information (e.g., bandwidth, latency) from the S-NICE orchestration
functions;
– 5: According to the traffic scheduling request, the service characters and resource information, the
S-NICE controller functions decide if one or several traffic scheduling policy rules are matched; if
yes, the S-NICE controller functions translate the policy rules into instruction requests and send
them to the S-NICE infrastructure functions;

– 6: The S-NICE infrastructure functions execute all the related instructions;
– 7: After all instructions have been executed, the confirmation message is sent back to the S-NICE
controller functions.

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