R1-2410106
discussion
Discussion on LS on applicable functionality reporting for beam management UE-sided model
From OPPO
Summary
This OPPO document addresses RAN2's liaison statement on UE-side model inference for beam management, proposing 10 specific answers to technical questions about the 6-step functionality-based lifecycle management procedure. The document contains 11 key proposals focusing on deprioritizing Option 1 for applicability reporting and defining how associated IDs, inference resources, and CSI reporting should be handled across the procedure steps.
Position
OPPO advocates FOR deprioritizing Option 1 in favor of Options 2 and 3 for UE-side model inference applicability, arguing that Option 1's early inference configuration in Step 3 creates unstable RRC behavior requiring withdrawal of configurations after UAI reporting. They push FOR optional associated ID configuration, reuse of legacy CSI reporting mechanisms, and configuring inference resources in Step 5 rather than Step 3. AGAINST mandatory inference resource configuration early in the procedure and immediate activation of CSI report configurations.
Key proposals
- Proposal (Discussions): For the applicability of UE-side model inference, deprioritize Option 1
- Proposed Answer 3 (Discussions): Associated ID can be configured within CSI framework as working assumption with no additional restriction in RAN1
- Proposed Answer 4-1 (Discussions): Associated ID(s) can be optionally configured by NW in Step 3 to represent NW-side additional conditions, with UE able to decide applicable functionalities via model availability if not provided
- Proposed Answer 4-2 (Discussions): It is not required for gNB to configure inference resources in Step 3 for UE to determine applicable functionalities
- Proposed Answer 5 (Discussions): In Step 4, UE reports the applicable functionality associated with one or more associated ID(s)
- Proposed Answer 6 (Discussions): Inference resource sets for Set B and Set A are configured within CSI framework (CSI-ReportConfig) in Step 5
- Proposed Answer 7 (Discussions): For Option 1, CSI report configuration for UE-side model inference can't be activated immediately upon receiving Step 3
- Proposed Answer 8 (Discussions): For Option 2 or Option 3, after receiving inference configuration in Step 5, legacy CSI reporting timeline can be reused by UE
- Proposed Answer 9 (Discussions): Multiple CSI reports for inference for UE-side model can be configured/activated/triggered, which is up to UE capability
- Proposed Answer 10 (Discussions): Legacy CSI reporting (periodic, aperiodic and semi-persistent CSI reporting) can be re-used for beam management