R1-2603379
CR
Correction on AI/ML for beam management in TS38214
From Samsung
Summary
This document presents a single Change Request (CR 0751) to correct the CPU processing duration specifications for UE-side data collection in AI/ML beam management within TS 38.214. It addresses an omission in the current Release 19 specification regarding periodic CSI reports for beam management, ensuring accurate CPU occupation timing definitions.
Position
Samsung, as moderator, proposes a correction to TS 38.214 Section 5.2.1.6 to accurately reflect RAN1 agreements on CPU processing criteria for AI/ML beam management. They require the inclusion of periodic CSI reports for UE-side data collection, which are currently missing from the specification. They define specific CPU occupation windows for semi-persistent, aperiodic, and 'none-csi-r19' report quantities based on CSI-RS/SSB resource symbols and PDCCH triggering. They argue that without this change, UE behavior for CPU duration during data collection for training would be incorrect.
Key proposals
- Proposal 1 (Sec 5.2.1.6): Define CPU occupation for semi-persistent CSI reports (excluding initial PUSCH triggers) from the first symbol of the earliest CSI-RS/SSB resource for L1-RSRP computation until a defined duration after the last symbol of the latest resource.
- Proposal 2 (Sec 5.2.1.6): Define CPU occupation for aperiodic CSI reports from the first symbol after the triggering PDCCH until the last symbol between a defined duration after the PDCCH and a defined duration after the last CSI-RS/SSB resource symbol.
- Proposal 3 (Sec 5.2.1.6): Define CPU occupation for CSI reports with reportQuantity set to 'none-csi-r19' from the first symbol of each periodic or semi-persistent CSI-RS transmission occasion until a defined duration after that occasion.
- Proposal 4 (Sec 5.2.1.6): Explicitly include periodic CSI reports for UE-side data collection for beam management in the CPU processing criteria, correcting the current specification which does not support this case.
- Proposal 5 (Sec 5.2.1.6): Align the text in Section 5.2.1.6 of TS 38.214 with RAN1 agreements to ensure correct UE behavior for CPU duration during UE-side data collection for training.