Page 169 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 3

Figure X illustrates the Capability Exposure Architecture for slice management.

Applications & Services with various requirements (M2M/IoT, Content delivery)

API for Slice Building / Modification
Network Capability Exposure

Resource Management

Resource Orchestrator

Resource Provider

eMBB Slice

IoT Slice
M2M Slice

Figure 8.1-1 – Capability Exposure for Slice Building

Use Case 1: The Creation or instantiation of Slice Triggered by the 3rd Party
rd
1. The 3 party indicates the functionality and performance requirements to create a slicing via Slice
Building API. In terms of implementation, a ServiceTemplate Profile may be sent to by the API. And
this temple contains the parameters to describe the functionality and performance requirements.
2. The network capability exposure function transfers the above slice building request to the resource
management function.

3. The Resource Orchestrator function authorizes functionality and performance requirements based
rd
on the agreement between the operator and the 3 party. If the request is allowed, the Resource
Orchestrator function forwards resource requirement to the Resource Provider and accordingly the
Resource Provider allocates the required resource (hardware and software) to create or instantiate
the dedicated slice.

Use Case 2: The Dynamic Modification of Functionality and Performance Configuration of Slice
1. The 3rd party indicates the modification of functionality or performance for a pre-created slicing via
Slice Modification API. The modification may be triggered for the reason of lack of resource or new
function needed by the 3rd party in the slice. In terms of implementation, a Service Template Profile
may be sent to by the API. And this temple contains the parameters to describe the functionality
and performance modification requirement.
2. The network capability exposure function transfers the above slice modification request to the
resource management function.

3. The Resource Orchestrator function authorizes functionality and performance modification
rd
requirements based on the agreement between the operator and the 3 party. If the request is
allowed, the Resource Orchestrator function forwards resource requirement to the Resource
Provider and accordingly the Resource Provider re-allocates the required resource (hardware and
software) to modify the dedicated slice.

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