# Summary of 3GPP Technical Document S4-260074 ## Document Overview This document presents revision 0.4 of the Work Plan for the Study Item "Study on Media Energy Consumption Exposure and Evaluation Framework phase 2" (FS_Energy_ph2_MED). The study was approved at SA4#132 (S4-251182) and SA#108 (SP-250636). ## Background and Motivation The study addresses incomplete work from TR 26.942 v2.0.0 due to dependencies on other 3GPP groups. The phase 2 study aims to: - Incorporate new information from completed 3GPP work - Address key issues identified but not resolved in phase 1 - Propose new potential solutions ## Study Objectives ### 1. Release 20 Requirements from TS 22.261 The study addresses new Rel-20 requirements in the media delivery context: **Clause 6.15a.2 - Energy-related information as service criterion:** - Media delivery performance degradation (QoS adjustment, bit rate modification, deferring Background Data Transfers) in response to network energy supply mix changes or energy rationing - Per-UE energy saving actions based on subscription policies, including blocking media delivery - Mechanisms to assist Media Application Providers in identifying UEs for performance degradation and energy saving actions - All subject to operator policy, regulatory requirements, and user consent **Clause 6.15a.5 - Energy-related information exposure:** - Exposure to UEs and authorized third parties over specific time periods - Network energy consumption and equivalent CO2e emissions for overall media delivery service and individual application data flows - Subject to operator policy, regulatory requirements, and user consent ### 2. Update Existing Solutions Update or develop existing potential solutions incorporating new elements from TS 23.501, TS 23.502, and TS 23.503, including: - Energy Information Function (EIF) - Efficient energy use mechanisms - Energy saving items ### 3. New Potential Solutions Propose solutions for key issues on: - Energy-related monitoring and measurement during media consumption - Evaluation frameworks without identified normative work ### 4. New Key Issues from Phase 1 **a. Energy-related configuration by Media Application Service Provider:** - How ASPs can configure energy-related information collection and exposure **b. AS Energy Management:** - How 5GMS AS (and RTC System equivalent functions) react to energy-related information from the network via Energy Information AF instantiated in 5GMS AF and/or Energy Information Collector **c. Client Energy Management:** - How 5GMS Client (and RTC System equivalent functions) react to network-shared energy-related information - Leverage existing QoS optimization mechanisms in RTC/5GMS for energy efficiency optimization ## Timeline Adjustments **Original Plan:** Completion by March 2026 (SA#111) **Revised Plan:** Completion postponed to June 2026 (SA#112) **Rationale:** - Original timeline too ambitious for two SA4 meetings - Additional two SA4 meetings provided - Addresses Rel-20 SA1 requirements while respecting Rel-20 Stage 2 freeze - Stage 2 addressed in single meeting, Stage 3 in two meetings **Key Decisions to Enable Revised Timeline:** - No new candidate solutions accepted after SA4#135 - Consensus on Stage 2 draft WID during SA4#135-bis e-meeting - Begin Stage 2 Technical Specification work before WID approval at SA#112 by submitting discussion papers to SA4#135-bis and/or SA4#136 - Early drafts of TS 26.nnn V0.0.1/V0.0.2 based on agreed baseline of Solution 5 ## Detailed Work Plan ### SA4#132 (May 2025, Fukuoka, JP) - Agreed New Study Item FS_Energy_ph2_MED (S4-251182) ### SA#108 (June 2025, Prague, CZ) - Approved New Study Item FS_Energy_ph2_MED (SP-250636) ### SA4#133-e (July 2025, online) - No actions ### SA4 MBS SWG AHG Meeting (Sep 2025, Paris, FR) - Address Rel-20 TS 22.261 requirements in media context (existing/new key issues) - Describe new key issues: ASP configuration, AS energy management, client energy management ### SA#109 (Sep 2025, China) - No actions ### SA4 MBS SWG AHG Telco (Oct 2025) - Progress work on key issues - Update/develop potential solutions on existing key issues - Initiate work on new potential solutions for new key issues ### SA4#134 (Nov 2025, Dallas, US) - Finalize work on key issues - Update/develop potential solutions on existing key issues - Progress work on new potential solutions - Communicate with other 3GPP WGs and external organizations ### SA#110 (Dec 2025, Baltimore, US) - No actions ### SA4 MBS SWG AHG Telcos (Dec 2025, Jan 2026) - Update/develop potential solutions on existing key issues - Progress work on new potential solutions ### SA4#135 (Feb 2026, Goa, IN) - Finalize work on potential solutions - Describe/improve potential normative work - Agree CRs to TR 26.942 - Communicate with other 3GPP WGs and external organizations ### SA#111 (Mar 2026, Fukuoka, JP) - ~~Approve CRs to TR 26.942~~ (changed to "No actions") ### SA4 MBS SWG AHG Telcos (Mar 2026) - Finalize work on potential solutions submitted before SA4#135 - Progress on phase 2 modifications in conclusions - Progress on/describe or improve potential normative work and further study ### SA4#135-bis e-meeting (Apr 2026, online) - Add potential solutions agreed in merged CR - Progress on/finalize conclusions and recommendations including potential normative work and further study - Finalize related Stage 2 draft WID - Initiate early draft of TS 26.nnn - Communicate with other 3GPP WGs and external organizations ### SA4#136 (May 2026, Montreal, CA) - Add conclusions and recommendations including potential normative work and further study in merged CR - Finalize recommendations and conclusions - Agree on merged CRs to TR 26.942 - Agree Stage 2 WID - Progress on early drafts of TS 26.nnn - Communicate with other 3GPP WGs and external organizations ### SA#112 (June 2026, Singapore, SG) - Approve merged CRs to TR 26.942 ## Proposal The document proposes the above Work Plan for SA4 team consideration.