China Telecom · 9.1.1

China Telecom supports collecting L1-RSRP, beam indices, and timestamps for NW-sided models, while proposing payload reduction via bitmap indications and larger quantization steps for differential RSRP. For UE-sided models, they oppose configuring only one resource set for Set B in BM-Case 1 and require that inference reports include Top K beams with predicted RSRP above a certain probability threshold. They support Option 3 for BM-Case 2 reference time, linking it to the latest transmission occasion of CSI-RS/SSB in Set B. For performance monitoring, they prefer Beam prediction accuracy KPIs and support configuring the full Set A for UE-assisted monitoring (Alt 1) or using L1-RSRP differences for Top K predicted beams (Alt 2). Finally, they confirm the working assumption that associated IDs ensure consistency within a cell and propose configuring associated IDs per CSI report configuration.

China Telecom advocates FOR comprehensive support of multiple data collection options for flexibility across different LCM purposes (training, monitoring, inference), beam prediction accuracy KPIs as primary performance monitoring metrics, and full Set A measurement for accurate UE-assisted performance monitoring. They push AGAINST using only single resource set configurations for Set B in UE-sided models and deprioritize link quality metrics for AI/ML model performance monitoring, arguing these don't directly reflect prediction accuracy.