Content for TR 22.882 Word version: 19.3.0
5.2 Use case on supporting different energy-related SLAs in industrial campus
5.2.1 Description
5.2.2 Pre-conditions
5.2.3 Service flows
5.2.4 Post-conditions
5.2.5 Existing features partly or fully covering the use case functionality
5.2.6 Potential new requirements needed to support the use case
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5.2 Use case on supporting different energy-related SLAs in industrial campus p. 13
5.2.1 Description p. 13
Industrial campuses are very typical scenarios of edge computing and local traffic offload. Dedicated network facilities are usually deployed near the campus for lower latency and local data protection. This brings a problem that these network facilities are used only for the campus, so while the manufacturing load is light or during vacation, these network facilities will be in very light load or even no load. Under this scenario, the energy consumption of these network facilities will be unnecessary.
5.2.2 Pre-conditions p. 13
Factory F, a smart manufacturing factory locates in a remote area outside the city. Factory F requires low latency in AGV transporting services and local data processing using computing vision to support image comparison for fault detection in circuit boards. Factory F has an agreement with Operator T on the communication service with certain SLA. As the manufacturing activity is not consistent, Operator T provides a replaceable SLA which can be used during off-peak time. This replaceable SLA can reduce energy consumption by changing the energy state of network functions used locally (e.g. to "energy saving" state), and the action can be activated either by pre-configured policy or by notification from Factory F.
5.2.3 Service flows p. 13
- Operator T provides a dedicate set of UPF and MEC platform for factory F. Factory F is an environmental conscious enterprise that cares about energy saving (and efficiency) along its whole industrial chain.
- When the manufacturing load of Factory F reaches a certain threshold (lower or higher), which is evaluated by Factory F, a notification will be sent to Operator T.
- Operator T will change the energy state of the dedicated network functions accordingly to energy saving, based on the pre-agreed policy with Factory F.
- After one year of this kind of usage, the charging information of the communication service will consider the actual usage time of the different energy states.
5.2.4 Post-conditions p. 14
Manufacturing of Factory F will be not affected, while energy consumption of the communication service could be saved by dynamically changing energy states of network functions, and the expenses of the communication service will be lower to encourage this kind of environmental-friendly action.
5.2.5 Existing features partly or fully covering the use case functionality p. 14
In TS 28.310, there are existing requirements to switch off edge UPFs during off-peak hours:
REQ-SOUPF-FUN-1:
The management service producer responsible for energy saving should have the capability allowing its authorized consumer to collect the traffic load performance measurements of its edge UPFs.
REQ-SOUPF-FUN-2:
The management service producer responsible for energy saving should have the capability allowing its authorized consumer to administratively prohibit selected edge UPFs from performing services for its users, either with immediate effect or only when no more users are using these UPFs.
5.2.6 Potential new requirements needed to support the use case p. 14
[PR.5.2.6-1]
The 5G system shall support different energy states of network elements and network functions.
[PR.5.2.6-2]
The 5G system shall support dynamic changes of energy states of network elements and network functions, based on pre-configured policy with authorised 3rd party.
[PR.5.2.6-3]
The 5G system shall support different charging mechanisms based on the different energy states of network elements and network functions.
