Spreadtrum · 10.6.1.2
WUS operation in RRC states ·
RAN1#124bis · Source verification
the AI's delta
shifted
vs RAN1#124
Spreadtrum shifted their measurement offloading position from an affirmative requirement (a UE in EE mode can perform serving cell RRM measurements using SSB or LP-SS) to a proposal for serving cell RRM via 6GR sync signal by EE processing while adding an explicit technical case against extending EE processing to neighboring cell RRM measurement, citing negligible energy impact from infrequent main-receiver neighbor measurements and increased implementation complexity and power consumption from EE-based neighbor measurement. They specified that the synchronization signal for RRM is the 6GR sync signal, dropping the prior LP-SS alternative. Their duplication-avoidance argument refined from only one DL-WUS type per RRC state to naming the specific NR duplicated functionalities to avoid: DCP and LP-WUS. A new observation appears that 6GR's coverage target matching PDCCH may eliminate the need for LP-WUS monitoring state transitions, building on their prior NR coverage limitation concern. Their stance on NR mechanisms as starting point and extending payload size for finer subgrouping granularity is preserved, though multi-beam operation via multiple monitoring occasions and Option 1-1/Option 1-2 adoption are not reiterated.
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Contributions at RAN1#124bis · 1 doc
Discussion on WUS operation in RRC states
Position extracted by AI
Spreadtrum proposes that NR LP-WUS mechanisms serve as the starting point for 6GR DL WUS occasion configuration, wake-up delay definition, and connected-mode operation (Options 1-1 and 1-2). They require only one type of DL-WUS in connected mode to avoid duplicated functionalities between DCP and LP-WUS as occurred in NR. They propose serving cell RRM measurement based on 6GR sync signal by EE processing to offload measurements from the main receiver and achieve considerable energy-saving gain, but question the necessity and gain of extending EE processing to neighboring cell RRM measurement, arguing infrequent neighbor measurements via main receiver have negligible energy impact and EE-based neighbor measurement would increase implementation complexity and power consumption. They observe that NR's DL-WUS coverage limitation constrains LP-WUR operation scenarios and note that 6GR's coverage target matching PDCCH may eliminate the need for LP-WUS monitoring state transitions.
Summary
Spreadtrum provides 2 observations and 7 proposals on DL WUS operation across RRC idle/inactive and connected modes for 6GR, focusing on leveraging NR LP-WUS mechanisms as a baseline while addressing coverage limitations and simplifying connected-mode wake-up signaling.
Prior contributions at RAN1#124 · 1 doc · Feb 09, 2026
Discussion on WUS operation in RRC states for 6GR
Position extracted by AI
Spreadtrum proposes that 6GR should avoid the duplicated DL-WUS functionalities introduced across NR releases by defining only one DL-WUS type per RRC state (Proposals 1 and 6). They propose using NR mechanisms as a starting point for wake-up delay and DL WUS occasion configuration (Proposals 3 and 4). For RRM measurements, they require that a UE in EE mode can perform serving cell RRM measurements using SSB or LP-SS in a low-power mode under certain signal quality conditions (Proposal 5). They support extending the payload size for finer subgrouping granularity and advocate for multi-beam operation via DL WUS occasions composed of multiple monitoring occasions (Proposal 2). For connected mode, they propose adopting NR's Option 1-1 and Option 1-2 as the basis for triggering PDCCH monitoring via LP-WUS (Proposal 7).
Summary
Spreadtrum presents 7 proposals and 3 observations on 6G DL WUS operation, focusing on avoiding NR's duplicated functionalities by introducing only one DL-WUS type per RRC state. The document addresses procedures for paging/PDCCH triggering, subgrouping, occasion configuration, wake-up delay, and RRM measurements in low-power mode.
How this was derived
The AI extracted the "position extracted" field above directly from each Tdoc during summarization.
For the delta summary at the top, the AI compared Spreadtrum's consolidated stance at RAN1#124bis
against their stance at RAN1#124 and classified the change as
shifted.
Always verify critical claims against the original Tdocs linked above.