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9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.10.4 Impacts on existing services, entities and interfaces | Editor's note: This clause captures impacts on existing services, entities and interfaces. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11 Solution #11: Policy changes due to EE criteria | In this solution, it addresses the requirements in TS 22.261 [8] below:
- Subject to operator policy and agreement with 3rd party, the 5G system shall provide a mechanism to support the selection of an application server based on energy related information associated with a set of application servers.
- Subject to oper... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.1 Key issue mapping | This solution resolves:
- KI#2: Subscription and policy control to support energy efficiency and energy saving as service criteria.
- KI#3: 5GS enhancements for network energy saving and efficiency. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2 Functional Description | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.1 General | Observing real power grid deployment, we can see that different areas have different level of energy usage pattern depending on the time period(s) and/or location(s), e.g. for the carbon intensity and ratio of renewable energy as shown in Figure 6.11.2.1-1.
Figure 6.11.2.1-1: An example of the carbon intensity distribu... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.2 URSP rules generation | A Route Selection Descriptor (RSD) in a URSP rule, as specified in Table 6.6.2.1-3 in TS 23.503 [4], may have optional time window and location criteria. If these two fields are presented in the RSD of a matched URSP rule, they need to be met before the UE associates the application to a PDU Session. If utilizing these... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.3 Slice with the validity information generation | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.3.1 Slice with the validity time information | A network slice may be available for UEs for a limited time that is known as the network in advance (e.g. by OAM/NWDAF). On the other hand, the carbon intensity and ratio of renewable energy change dynamically depending on time and/or location, e.g. the solar power can be obtained during daytime, the wind power can be ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.3.2 Slice partially support in registration area | Similar logic can be applied for the AMF when generating the S-NSSAIs in partially Allowed NSSAI based on the energy related information. A network slice may be available for the UE in one or more TAs in a PLMN when the network slice is deployed for using renewable energy.
A supporting UE can request such S-NSSAI in pa... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.2.4 Collection of the energy related information from the electricity company | Based on the energy related information from the electricity companies, the network operator can apply such energy related information when generating the URSP rules by using time window and location criteria to guide the UE to transmit to a PDU Session supporting a greener network slice when the time and location crit... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.3 Procedures | The 5GC procedures such as MM and SM procedures are not impacted. The procedures on how the PCF/AMF obtains the energy related information to generate the URSP rules and slices with the validity information are described below: |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.3.1 From OAM/NWDAF | Figure 6.11.3.1-1: the procedure for PCF/AMF to obtain the energy related information from OAM/NWDAF
1. The PCF/AMF (as a consumer NF), if enabled to support the energy related information, sends an Analytics request/ subscribe to NWDAF. The request or subscription includes either a new Analytics ID for "Energy related... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.3.2 From EMF | Figure 6.11.3.2-1: The procedure for PCF/AMF to obtain the energy related information from EMF
1. The PCF/AMF (as a consumer NF), if enabled to support energy related information, sends request/ subscribes to the EMF.
Editor's note: The full set of input parameters from PCF to EMF is FFS.
2. The EMF can request the ene... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.11.4 Impacts on existing services, entities and interfaces | The existing NWDAF services and possibly Analytics ID(s) and / or Analytics Filters are updated to support the energy related information.
The existing data collection and exposure procedures from OAM/ MDAF/EMF are enhanced to support the energy related information, e.g.:
- Carbon intensity in time and location per sli... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12 Solution #12: Support for NWDAF-Based Energy Analytics | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.1 Key Issue mapping | This solution maps to KI#3. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.2 Functional Description | This solution aims to address the KI#3 to extend the NWDAF-based analytics with energy related aspects to support network energy saving and enhance network energy efficiency.
Currently, NWDAF by collecting and analysing data from multiple sources including 5GC NFs, OAM can provide various analytics including UE behavio... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.2.1 General Description | This clause describes how NWDAF can provide energy related analytics, in the form of statistics or predictions or both, to another NF.
The service consumer may be an AF, 5GC NF (e.g. NEF, PCF, AMF, SMF, EECF), or the OAM.
The consumer of these analytics shall indicate in the request:
- Analytics ID = "Energy informatio... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.2.2 Input Data of Energy Related Analytics | The NWDAF may collect the service data from OAM, AF and/or the 5GC network function in charge of energy monitoring and management of the energy consumption and energy efficiency (i.e. EMF, if any) as listed in Table 6.12.2.2-1 to Table 6.12.2.2-4.
Editor's note: Whether there is a need for a new 5GC NF such as EMF or w... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.2.3 Energy Related Output Analytics | According to the consumer request, the NWDAF determines the prediction and statistics of energy consumption and energy efficiency along with other corresponding information at different granularities using the input data.
Table 6.12.2.3-1: Statistics of the output analytics
Information
Description
List of energy-relate... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.3 Procedures | Figure 6.12.3-1: Procedures for energy related analytics
1. The Consumer NF, e.g. AF, PCF or NEF, requests or subscribes to analytics for energy related analytics from NWDAF (possibly via NEF in case the consumer NF is an untrusted AF) and provides the input information as specified in clause 6.12.2.2 by invoking eithe... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.12.4 Impacts on existing services, entities and interfaces | NWDAF:
- Collect new energy related inputs from 5GC NFs (i.e. SMF, EMF), AF and OAM.
- Generate new energy related output analytics including predictions and statistics.
- Expose energy related analytics outputs to consumers.
5GC NFs (e.g. NRF, SMF, UPF):
- Expose required information for energy related analytics to NW... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.13 Solution #13: Energy Aware User Plane Path Adjustment | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.13.1 Key Issue mapping | The proposed solution maps to the following aspect of KI#3:
‐ Whether and how to enhance the existing operations and procedures to satisfy the energy saving and energy efficiency requirements. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.13.2 Functional Description | SMF is responsible for managing UPFs in the 5G via N4 interface considering the PPC rules provided by the PCF. PCC rules composed of various fields that not only determined by the operator policy and charging but also can be influenced by AF such as "N6-LAN Traffic Steering Enforcement Control". The "AF influence on tr... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.13.3 Procedures | The procedure depicted in Figure 6.13.3-1 describes how the UP paths are adjusted based on the operator's policy.
Figure 6.13.3-1: Energy-aware user plane path adjustment
1. The EECF subscribes to the operator's energy policy configured in the OAM. The policy determines the importance of different energy-related criter... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.13.4 Impacts on existing services, entities and interfaces | The solution has the following impacts:
EEFC:
- New network functionalities to collect energy related information of UPFs and also operator's energy policies.
- New network functionalities to make decision to adjust UP paths of PDU sessions according to UPFs energy and load status and the operator's energy policy.
- Ne... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.14 Solution #14: UE energy usage control | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.14.1 Key Issue mapping | The solution applies to Key Issue #3 5GS enhancements for network energy saving and efficiency. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.14.2 Functional Description | Assumptions:
- It is assumed that each UE will have an Energy Credit Profile as a subscription information in the UDR which contains the allowed Energy Credit units for the UE. The Energy Credit units may be reset periodically based on the UE subscription plan.
- It is assumed that the UE's Energy Credit units balance ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.14.3 Procedures | Figure 6.14.3: UE energy usage control
1. PDU Session establishment start according to clause 4.3.2.2.1 of TS 23.502 [3].
2. SM Policy establishment or modification according to clauses 4.16.4 and 4.16.5.1 of TS 23.502 [3].
3. The PCF may decide to retrieve the remaining Energy Credit for the UE from the UE's Energy Cr... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.14.4 Impacts on existing services, entities and interfaces | UDR:
- UE's Energy Credit profile as part of the UE subscription information.
PCF:
- UE's Energy Credit retrieval from the UDR and control.
UE:
- New PDU Session reject cause (e.g. 'no energy credit') handling. No impact to legacy UEs as an existing reject cause can be used. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15 Solution #15: Enhancements to existing 5GS procedures for energy saving and policy control enforcement | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.1 Key Issue mapping | This solution addresses Key Issue #3 "5GS enhancements for network energy saving and efficiency" and Key Issue #2 "Subscription and policy control to support energy efficiency and energy saving as service criteria". |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.2 Functional Description | Existing 5G MM and SM procedures can be enhanced based on the requirements of network energy saving and energy efficiency.
The AMF can decide Access and Mobility parameters related to network energy saving based on AM subscription data, AM policy, UE related analytics (e.g. UE mobility and abnormal behaviour analytics)... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.3 Procedures | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.3.1 Mobility Management procedures enhanced for energy saving | Figure 6.15.3.1-1: Enhanced MM/Registration Procedures for energy saving
1. The UE initiates Registration procedure towards the network as described in step 1, clause 4.2.2.2.2 of TS 23.502 [3].
The Registration procedure continues as specified in clause 4.2.2.2.2 of TS 23.502 [3], with the following enhancements:
2. I... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.3.2 AM policy control to achieve energy efficiency and energy saving | This solution describes a procedure for the PCF to create AM policy control information which contributes to restrict the UE service parameters (e.g. based on the reached maximum EC credit) and achieves energy saving.
Figure 6.15.3.2-1: Procedure for the PCF to create AM policy control information achieving energy savi... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.3.3 Session Management procedures enhanced for energy saving | Figure 6.15.3.3-1: Enhanced SM/PDU Session Establishment Procedures for energy saving
1. The UE initiates PDU Session Establishment procedure towards the network as described in step 1, clause 4.3.2.2.1 of TS 23.502 [3].
The PDU Session Establishment procedure continues as specified in clause 4.3.2.2.1 of TS 23.502 [3]... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.15.4 Impacts on existing services, entities and interfaces | AMF:
- Performs Access and Mobility Management taking into account network energy saving requirements, based on AM subscription data, AM policy received from PCF, UE related analytics (e.g. UE Mobility analytics and Abnormal behaviour analytics), and/or network energy control information, etc.
- Optionally, obtaining n... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16 Solution #16: Energy Brokerage Function for energy related information acquisition and processing | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.1 Key Issue mapping | This is a candidate solution for KI#1.
In KI#1, to support network energy related information exposure, the following aspects are to be studied:
- How the network energy related information is exposed.
- How and what network energy related information from the Network entities (i.e. RAN nodes, 5GC NFs) can be obtained ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.2 Functional Description | Based on the requirements and use cases in TS 22.261 [8], it is proposed to specify an Energy Brokerage Function (EBF) in 5GC to act as an intermediary between the network and authorized third parties to acquire energy related information, process the information to generate energy consumption and energy efficiency KPI... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.3 Procedures | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.3.1 Interactions between EBF and OAM | The EBF could collect relevant counters from OAM and use them to generate energy efficiency related KPIs. The interactions between EBF and OAM for data collection are illustrated in Figure 6.16.3.1-1. The type of performance measurements data to be collected depends on the use cases. This figure is an example of the OA... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.3.2 EBF Service Operation | Figure 6.16.3.2-1 illustrates two procedures. In one procedure, EBF service consumer (e.g. including NFs and trusted AFs) could subscribe/unsubscribe at EBF to be notified on EE/EC information. In the other procedure, the EE information exposure to AFs may be performed via NEF by using EE information subscription to EB... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.3.3 Service operations inputs | The proposed procedure in clauses 6.16.3.1 and 6.16.3.2 can be used to expose various energy-related and performance-related information at three different levels of granularities including network slice level, 5G core segment of the slice level, and NF level. The required exposure information is determined by the inpu... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.16.4 Impacts on existing services, entities and interfaces | EBF:
- Support functions as described in clause 6.16.2.
- Support interactions with OAM as described in clause 6.16.3.1.
- Support service operations as described in clause 6.16.3.2.
NEF:
- Support EEInfo subscription and fetch service operations as described in clause 6.16.3.2.
Editor's note: The details of the inform... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17 Solution #17: Energy related information collection based on two granularities | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.1 Key Issue mapping | This solution maps to KI#1. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.2 Functional Description | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.2.1 Principles about how related information is determined and processed energy | This clause describes how the energy related information, specifically the Energy Consumption, Renewable Energy and Carbon emission information is obtained via OAM and the principal requirements for the processing of energy related information.
The specification TS 28.554 [6] defines the Energy Consumption KPI of a Phy... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.2.2 Architectural model and functional entities | This solution is based on existing OAM capabilities enabling to collect and expose energy consumption information of network entities (i.e. RAN nodes, 5GC NFs) with the granularity of network slice and NF.
The principles of the solution are:
- SMF and NWDAF retrieve the energy consumption information of the relevant NF... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.3 Procedures | NOTE 1: The message names in the procedure below are descriptive. It is assumed that the names are updated with corresponding SBI based names where applicable during the normative phase.
Figure 6.17.3-1: Procedure for Energy related information collection and exposure
1. AF triggers the energy information exposure by i... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.17.4 Impacts on existing services, entities and interfaces | NWDAF/EECF:
- Handles the energy related information collection and calculation for the coarse granularity.
SMF/EECF:
- Handles the energy related information collection and calculation for the fine granularity.
UPF:
- Provides the date volume information as per the request from SMF.
NEF:
- Identify the involved NF(s) ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.18 Solution #18: Collecting of Energy Consumption information on per UE level (RAN assisted) | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.18.1 Key Issue mapping | This solution addresses the following requirements:
- from Key Issue #1 the requirement: "How and what network energy related information from the Network entities (i.e. RAN nodes, 5GC NFs) can be obtained in order to support network energy related information exposure"; and
- from Key Issue #2 the requirement "What ne... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.18.2 Functional Description | This solution proposes to collect Energy Consumption (EC) information on per UE level granularity (or a finer granularity like per PDU Session or per QoS flow). The EC information is calculated in the "EC collecting Function" (ECF) in the control plane of the Core Network (CN). The solution is based on the following pr... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.18.3 Procedures | The Figure 6.18.3-1 describes the details of the procedure about EC information collection on per UE level (or finer granularity) at the ECF.
Figure 6.18.3-1: Signalling flow for EC information calculation at ECF on per UE level (or finer granularity) based on EC assistance information provided by RAN
The detailed desc... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.18.4 Impacts on existing services, entities and interfaces | The following NFs and interfaces are impacted:
ECF:
- a functionality as description of clause 6.18.2 which can be in a stand-alone NF or collocated in existing NF.
RAN:
- to calculate the RAN part of the EC information as described in clause 6.18.2 and in clause 6.18.3 step 4.
AMF:
- [optionally] to store the request ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19 Solution #19: NG-RAN node QoS flow PDU session and UE level energy related information report | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19.1 Key Issue mapping | This is a solution for key issue #1 "Network energy related information exposure". |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19.2 Functional Description | NG-RAN may activate the PDU session / QoS flow level energy related information reporting procedure for specific UE(s), the procedure is triggered by a request from SMF.
PDU session / QoS flow level energy related information is provided by NG-RAN to SMF and will include the following parameters:
- The specific PDU ses... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19.3 Procedures | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19.3.1 NG-RAN Energy Info report procedure | Figure 6.19.3.1-1: NG-RAN Energy info report procedure
0. The UE subscription per DNN and per S-NSSAI in UDM of the HPLMN indicates as defined in clause 5.6.1 of TS 23.501 [2] the subscribed policy for report of Energy Consumption information and the specific granularity of reporting i.e. per PDU session Energy Consump... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.19.4 Impacts on existing services, entities and interfaces | SMF:
- Support new N2 signalling to send NG-RAN energy consumption info request; or
- Enhance the existing N2 SM message to include the NG-RAN energy consumption info request.
NG-RAN:
- Calculate the PDU session / QoS flow level NG-RAN Energy consumption;
- Report the NG-RAN energy consumption info for specific QoS flo... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20 Solution #20: Exposure, charging and handling of energy related information based on UP reporting from RAN | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.1 Key Issue mapping | This Solution is related to KI#1 and KI#2, and it may also provide input data to analytics (KI#3). |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.2 Functional Description | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.2.1 Introduction | This solution comprises several aspects:
- The PCF (AM PCF and/or SM PCF or same PCF if same PCF is select for AM and SM), based on policies associated e.g. to the UE subscription, can provide to the SMF QoS policies (e.g. a different UE AMBR or session AMBR) per energy state in the RAN by means of alternative QoS prof... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.2.2 General overview | Figure 6.20.2.2-1: Overall set up of the reporting and exposure of energy related information from RAN
Figure 6.20.2.2-1 illustrates the overall handling of energy related information in the context of a Policy and exposure framework that enables exposure of energy related information, charging based on energy-related ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.3 Procedures | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.3.1 Procedure for exposure and Policy control | Figure 6.20.3.1-1: Procedure for exposure and Policy control based on reporting of energy related information from RAN
1. The PCF may provide per Energy State QoS profiles to the gNB for the UE for a specific SDF, PDU session or at UE level.
2. The UE sends/receives data as normal.
3. For the data sent/received by the ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.3.2 User notification | Based on the identified UE energy category at NWDAF (or notification of change of energy category), an AF requesting NWDAF analytics exposure can send an SMS or other type of notification to the User to communicate this category, possibly including some explanation and recommendation on how to behave to change to a bet... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.20.4 Impacts on existing services, entities and interfaces | gNB: handling of per Energy state QoS profiles and reporting of energy related information per UL and DL data transmission from/to UE.
UPF:
- Processing and reporting of energy related information from gNB.
SMF:
- Processing and reporting of energy related information from UPF, handling of energy related PCRTs and anal... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21 Solution #21: Credit limit control based on UE's subscription | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21.1 Description | This solution addresses Key Issue #2 " Subscription and policy control to support energy efficiency and energy saving as service criteria".
The credit limit for one single subscriber/service e.g. maximum energy usage, maximum energy consumption is reflected on UE's subscription. During registration and PDU session esta... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21.2 Procedures | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21.2.1 Access control by AMF | Figure 6.21.2.1-1
1. UE initiates registration procedure. As described in clause 4.2.2.2.2 of TS 23.502 [3].
3. AMF retrieves UE's subscription information from UDM. If UE has subscribed energy credit limit control, the subscription information contains at least one of the following aspects:
a) Energy credit limit at n... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21.2.2 Session control by SMF | Figure 6.21.2.2-1
1. UE initiates PDU session establishment procedure. As described in clause 4.3.2.2.1 of TS 23.502 [3].
4. SMF retrieves UE's subscription information from UDM. If UE has subscribed energy credit limit control, the subscription information contains at least one of the following aspects:
a) Energy cred... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.21.3 Impacts on Existing Nodes and Functionality | UDM:
- Provide energy credit limit information at different granularities.
AMF/SMF:
- Perform energy credit limit control (e.g. access control, session control).
- Retrieve energy credit limit information from UDM.
- Retrieve energy usage information or indication from EE NF/NWDAF.
- Perform AM/SM policy control based ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.22 Solution #22: Energy related UE subscription information | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.22.1 Key Issue mapping | This solution resolves KI#2 for energy related UE subscription information. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.22.2 Functional Description | UE subscription information needs to be consolidated to support energy saving effectively. The proposed energy related UE subscription information is structured in Table 6.22.2-1 and the details are as follows.
- Energy Efficiency (EE) threshold: Specifies the threshold of energy efficiency for energy saving related pr... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.22.3 Procedures | The energy related UE subscription information is maintained in UDM/UDR and can be retrieved by other NFs for energy saving related operations such as AM/SM policy control, PDU session establishment/modification and etc.
NOTE: The proposed UE subscription information is general to other energy saving related solutions.... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.22.4 Impacts on existing services, entities and interfaces | UDM/UDR:
- Should support the proposed energy related UE subscription data.
PCF/AMF/SMF/EECF:
- Should support the energy related UE subscription data retrieval and processing. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.23 Solution #23: Energy credit Provisioning and Energy credit based policy control for UE level | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.23.1 Key Issue mapping | This solution proposes that the energy credit can be provisioned in the UE subscription data via OAM or external AF. The PCF (e.g. AM-PCF, SM-PCF) obtains the energy credit information and make the policy decision.
This solution is related to the Key Issue #2 on Subscription and policy control to support energy efficie... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.23.2 Functional Description | This solution enhances the UE subscription to support energy related information as service criteria. The energy credit defined by TS 22.261 [8] is added to UE subscription. It can be per UE level, or per UE per DNN+S-NSSAI level.
The AF or 3rd party also can provision the energy credit for particular services to 5GC a... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.23.3 Procedures | Figure 6.23.3-1: Procedure of Subscription and policy control to support Energy efficiency and energy saving as service criteria
Figure 6.23.3-1 shows a procedure of Subscription and policy control to support Energy efficiency and energy saving as service criteria. The AF provisioning part reuses the existing mechanism... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.23.4 Impacts on existing services, entities and interfaces | EEF:
- New NF Functionalities are as description of clause 6.23.2.
NEF:
- Enhance the Parameter Provision service operation to allow the AF to provision the energy credit to subscription data.
UDM:
- There may be energy credit in the UE subscription data. It can be per UE level, or per UE per DNN+S-NSSAI level.
PCF:
- ... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.24 Solution #24: Subscription enhancements for energy savings in RAN | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.24.1 Key Issue mapping | This solution is related to the KI#2: Subscription and policy control to support energy efficiency and energy saving as service criteria. This solution addresses green subscription use cases like the use case described in clause 5.1 of TR 22.882 [5].
A green subscription is a form of subscription where the user that al... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.24.2 Functional Description | There are no architecture updates needed for this solution and existing procedures are reused.
A Green Subscription Indication (GSI) is added to the Access and Mobility Subscription information. The AMF retrieves the subscription information from UDM during registration and passes the GSI to NG-RAN which stores it in t... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.24.3 Procedures | The AMF retrieves the subscription information from UDM during registration and if changed the GSI is passed to NG-RAN in the UE context setup or modification as described in step 14a-c in General Registration procedure (clause 4.2.2.2.2 of TS 23.502 [3]).
NOTE: The GSI may also be provided in additional procedures. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.24.4 Impacts on existing services, entities and interfaces | AMF:
- Retrieving the GSI from the UDM and providing it to RAN.
UDM:
- Storing and providing the GSI.
NG-RAN:
- Implementations may take the GSI into consideration to save resources consumed on best effort traffic. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.25 Solution #25: Enhancement for BDT with Energy related analytics | |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.25.1 Key Issue mapping | This solution maps to KI#2. |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.25.2 Functional Description | This solution is proposed to address Key Issue #2: 5GS enhancements for network energy saving and efficiency. It shall be noted that this solution functionally to the more generic solutions' group for policy provision and energy saving, but focusing specifically on BDT.
In the case of negotiation for future BDT (backgr... |
9a7ee78d376350a925431f80a43bf5d9 | 23.700-66 | 6.25.3 Procedure |
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