R1-2600197
discussion
Discussion on evaluations for 6G Energy Efficiency
From OPPO
Summary
This OPPO contribution addresses open issues for 6G Energy Efficiency evaluations, covering both network (BS) and UE power consumption modeling and assumptions across 9 proposals. The document proposes baseline configurations, scaling rules for multi-carrier and low-power modes, load definitions, and specific parameter updates for UE power states and bandwidth adaptation.
Position
OPPO proposes a specific BS baseline assumption with 20ms periodicity for SSB and RO, requiring companies to report SIB1 periodicity and processing values. They propose a scaling method for the SCMC BS power model by scaling Pdyn,jointe from 100MHz to 200MHz system bandwidth. OPPO proposes a BS LP EE mode scaling rule where static part TXRU can be transferred to Light sleep or Deep sleep states with corresponding transition times and scaled energy values. They question the applicability of 5G field data to predict 6G service characteristics and propose further study on whether legacy load levels can be reused. For UE power modeling, OPPO introduces a new power state between Deep-sleep and Ultra Deep-sleep with specific power value (0.1), transition energy (10000), and transition time (100ms/150ms), and proposes linear bandwidth scaling below 100MHz with a higher linear ratio above 100MHz.
Key proposals
- Proposal 1 (Sec 2.1): For BS baseline assumption, OPPO proposes SSB with 20ms periodicity, SIB1 with company-reported periodicity, RO with 20ms periodicity, and reporting of BS processing values.
- Proposal 2 (Sec 2.2): OPPO proposes that the Single Cell Multi-Carrier (SCMC) BS power model can use a scaling method, specifically scaling Pdyn,jointe from 100MHz to 200MHz system BW.
- Proposal 3 (Sec 2.3): OPPO proposes a BS LP EE mode scaling rule where static part TXRU scaling uses Light sleep or Deep sleep relative power values, with corresponding transition times and scaled energy values.
- Proposal 4 (Sec 2.4): OPPO proposes RAN1 further study whether the legacy 5G load levels (Low: 0<L≤15%, Light: 15<L≤30%, Medium: 30<L≤50%) can be reused for 6G BS power saving evaluation, citing field data suggesting traffic is concentrated below 15%.
- Proposal 5 (Sec 3.1): OPPO proposes applying the FR1 reference configuration to around 7GHz for 6G Energy Efficiency, assuming 30kHz SCS and TDD duplex mode.
- Proposal 6 (Sec 3.2): OPPO proposes keeping the paging rate at 10% for the 6G UE Energy Efficiency study, including for around 7GHz.
- Proposal 7 (Sec 3.3): OPPO proposes introducing a new UE power state between Deep-sleep and Ultra Deep-sleep with power value 0.1, transition energy 10000, transition time 100ms/150ms; Ultra deep sleep total transition time 1600ms and transition energy 40000.
- Proposal 8 (Sec 3.4): OPPO proposes UE power value scaling that is linear for below 100MHz bandwidth and linear with a higher ratio for above 100MHz bandwidth.
- Proposal 9 (Sec 3.5): OPPO proposes 2RX factor values for DL WUS OFDM-based sequence processing (X1=14, X2=17, X3=21) and UL TX power values (X4=275, X5=330, X6=475, X4=1150).