R1-2600110
discussion
Discussion on energy efficiency
From Spreadtrum
Summary
Spreadtrum provides 12 proposals on power consumption models for 6G energy efficiency evaluation, covering both network and UE sides. The proposals aim to simplify evaluation by reducing model complexity.
Position
Spreadtrum proposes to reduce 6G UE power model complexity by removing bandwidth configurations (5%, 400MHz) from the UE power model and eliminating the maximum schedulable PDSCH throughput ratio parameter from PDCCH-only state. They argue that 400MHz support is undetermined and potentially requires CA, making it unnecessary for evaluation. They oppose introducing a baseband-only PDSCH processing state and related scaling rule, arguing bandwidth adaptation rules already reflect PDSCH processing relaxation. For micro-sleep, they propose a simple two-point scaling rule reusing the legacy 45 power units for 100MHz and defining a single X power unit for 200MHz, explicitly rejecting a more complex scaling approach. They further require that ultra deep sleep state be confined exclusively to IoT devices, not applicable to eMBB devices.
Key proposals
- Proposal 1 (Sec 2.1): Only one category for evaluation.
- Proposal 2 (Sec 2.2): Reuse 5G BS load level for 6GR EE evaluation.
- Proposal 3 (Sec 2.3): For evaluation purpose, support LP/EE mode at BS side.
- Proposal 4 (Sec 3.1): Reuse UE/Group paging rate in TR 38.869. Companies to report the value of N and RE, REF.
- Proposal 5 (Sec 3.2): For EE processing state, power values for 2RX are 14, 17 and 21 for micro, light and other sleep.
- Proposal 7 (Sec 3.2): Clarification that UDS is only for IoT device, not for eMBB device.
- Proposal 6 (Sec 3.2): Fix one slot reception time for evaluation in EE processing state. Detailed design of reception time can be discussed in WI phase.
- Proposal 8 (Sec 3.3): Remove 5% and 400% in UE power model.
- Proposal 9 (Sec 3.3): Remove for 100MHz in PDCCH+PDSCH state.
- Proposal 10 (Sec 3.3): Remove in PDCCH-only state.
- Proposal 11 (Sec 3.3): A simple scaling rule for micro-sleep, e.g., reuse legacy 45 power units for 100MHz and redefine X power units for 200MHz.
- Proposal 12 (Sec 3.3): Not support baseband-only PDSCH processing state and related scaling rule.