New H3C Technologies Co. · 9.1.2
Specification support for positioning accuracy enhancement ·
RAN1#119 · Source verification
Claude's delta
new
vs RAN1#118bis
New H3C Technologies Co. joined as a new participant with a strong pro-CIR stance, bringing specific technical preferences for relative phase methods.
AI-synthesized from contributions · all text is paraphrased
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Contributions at RAN1#119 · 1 doc
Discussion on AI/ML for positioning accuracy enhancement
Position extracted by Claude
H3C supports employing CIR as AI/ML model input for both direct and assistant positioning, arguing it preserves more channel information than PDP or DP. They require the elimination of initial phase mismatch in CIR measurements before AI/ML model input to prevent performance degradation. They prefer the relative phase method over double differential methods to reduce implementation costs and improve algorithm usability. They propose supporting specific reference sample selection criteria, namely 'strongest path' and 'first satisfied sample', and reference phase calculation methods, namely 'mean method' and 'minimum phase method'. They further propose supporting the physical layer process and air interface signaling transmission scheme for LMF-side models to configure and monitor this phase alignment process.
Summary
This document from H3C proposes specific algorithms for eliminating initial phase mismatch in Channel Impulse Response (CIR) measurements used as AI/ML model inputs for NR positioning. It defines reference sample selection criteria (strongest path, first satisfied sample) and reference phase calculation methods (mean, minimum phase), totaling 16 observations and 6 proposals across the document.
Prior contributions
New H3C Technologies Co. has no prior contributions to 9.1.2 in the meetings currently tracked. This is either a new contributor to this sub-topic or the earliest meeting in our history.
How this was derived
Claude extracted the "position extracted" field above directly from each Tdoc during summarization.
For the delta summary at the top, Claude compared New H3C Technologies Co.'s consolidated stance at RAN1#119
against their stance at RAN1#118bis and classified the change as
new.
Always verify critical claims against the original Tdocs linked above.