R1-2603185
discussion
Draft reply LS on capability reporting for PRS processing window
From Ericsson
Ericsson's prior position on
5
at
RAN1#118bis
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Advocates for inclusion of UE-side data collection capabilities for UE-side model training in AI/ML applications, supporting RAN2's endorsement and requesting incorporation into technical report TR 38.843.
Summary
Ericsson responds to RAN2 regarding capability reporting for Positioning Reference Signal (PRS) Processing Window (PPW) in Rel-19 NR AIML. The document provides definitive answers to two questions, specifying that capability 58-2-11 is known only to the gNB, while capabilities 58-2-9 and 58-2-10 are known to both the gNB and the LMF.
Position
Ericsson clarifies the visibility of specific UE capabilities for PRS Processing Window (PPW) in the context of NR AIML air interface. They state that capability 58-2-11, which relates to support for more than one activated PRS processing window across all active DL BWPs, should be known only to the gNB, aligning with legacy non-AIML positioning behavior. Conversely, they confirm that capabilities 58-2-9 and 58-2-10 should be known to both the gNB and the LMF, ensuring the LMF has the necessary information for positioning configuration. This distinction ensures that the gNB can configure PPW details based on UE capability while the LMF retains awareness of relevant positioning features.
Key proposals
- Proposal 1 (Sec 1): Capability 58-2-11 should be known only to the gNB.
- Proposal 2 (Sec 1): Capabilities 58-2-9 and 58-2-10 should be known to both the gNB and the LMF.