Discussion Paper on FS_Energy_Ph2_MED Next Steps

1. Background and Issue

The Study on Media Energy Consumption Exposure and Evaluation Framework Phase 2 (FS_Energy_Ph2_MED) is facing schedule challenges. The study was originally planned for completion at SA4#135, but significant work remains outstanding.

Current Status

• Only 4 out of 14 Tdocs submitted to the SA4-e (AH) MBS SWG post 134-2 have been reviewed
• Only 2 Tdocs reached consensus
• A significant number of new candidate solutions are expected at SA4#135
• Consensus is still required on:
• Conclusions, including selection of candidate solutions for key issues
• Recommendations listing proposed normative changes
• Stage 2 Work Item Description (WID)

Original Planning Constraint

The original plan required Stage 2 WID agreement at SA4#135 to allow:
- Two SA meetings (SA#112 June 2026, SA#113 September 2026) for Stage 2 completion
- Two additional meetings (SA#114 December 2026, SA#115 March 2027) for Stage 3 finalization
- Meeting the Release 20 Stage 3 freeze deadline (SA#115 March 2027)

2. Remaining Work for Meaningful Stage 2

Phase 1 Context

Phase 1 of TR 26.942 recommended normative work for Key Issue #1 (Energy-Related Information Exposure) based on:
- Energy Information Function (EIF) within 5G System (TS 23.501)
- Two new entities: Energy Information Application Function (EIAF) and Energy Information Collector (EIC)

Phase 2 Progress

• EIF capabilities and interfaces are now clearly defined
• Architecture and procedures related to energy information management have been validated through discussions
• However, agreed Change Requests are insufficient to fully identify necessary Stage 2 actions

Critical Outstanding Items

To enable meaningful Stage 2 work, the following key points must be addressed:

1. Baseline Procedures Update: Incorporate new EIF capabilities and interfaces information; confirm whether Energy Information Collector will be used
2. Energy-Related Information Exposure Provisioning: Clarify what Step 1 of baseline procedures entails
3. AS Energy Information Report: Clarify report contents
4. Network Energy Information Delivery: Clarify different options for sending Network Energy Information to UE

3. Feasibility Assessment for SA4#135

The following tasks appear very challenging to complete during SA4#135:
- Agree on candidate solutions addressing the key points listed in Section 2
- Reach consensus on conclusions, including candidate solution selection
- Reach consensus on recommendations listing proposed normative changes
- Agree on Stage 2 WID

Conclusion: The work plan requires adaptation.

4. Proposed Solution and Revised Planning

Proposal

Postpone FS_Energy_Ph2_MED completion from SA4#135 to SA4#136, providing two additional SA4 meetings to finalize the study. This approach would:
- Complete the study at SA4#136
- Address Stage 2 in a single meeting (SA#136)
- Complete Stage 3 in two meetings
- Still meet Rel-20 Stage 2 freeze and address Release 20 SA1 requirements

Enabling Measures

To make this feasible:

1. Freeze New Candidate Solutions: Prevent submission of candidate solutions that have not already been discussed after SA4#135
2. Early WID Consensus: Reach consensus on Stage 2 draft WID during SA4#135-bis e-meeting
3. Early Stage 2 Work: Begin work on new Stage 2 Technical Specification prior to WID approval at SA#112 by:
4. Submitting discussion papers to SA4#135-bis e-meeting and/or SA4#136
5. Including early drafts of TS 26.nnn V0.0.1/V0.0.2 based on agreed baseline of Solution 5

Next Steps

Once consensus is reached on this proposal, the related workplan will be updated accordingly.