NEC · 10.5.1.3
Bandwidth operation ·
RAN1#124bis · Source verification
the AI's delta
new
vs RAN1#124
NEC is a new contributor at RAN1_124bis with a comprehensive BWP position. Proposes redefining BWP to support non-continuous PRBs across multiple carriers—a concept not explicitly advanced by any other company in either meeting. Proposes decoupling DL and UL BWP frequency locations/bandwidths, consistent with Nokia's and Spreadtrum's positions. Proposes relaxing the NR restriction confining DL bandwidth to CORESET#0 during initial access and studies two alternatives for initial BWP operation: a single common pair or multiple pairs with UE selection. Proposes studying multiple BWP switching schemes including both low-power signal and timer-based triggers—explicitly supporting timer-based triggers where Nokia explicitly opposes them. Introduces the SCMC framework into BWP discussion by proposing study of carrier assignment for common signaling under SCMC and the relationship between initial BWPs and carriers for multi-carrier operation.
AI-synthesized from contributions · all text is paraphrased
Every position summary on this site is generated by an AI from the actual Tdoc contributions. This page shows you the exact source documents the AI read to produce the summary above, so you can verify it yourself. Click any Tdoc ID to view its detail page, or click "3gpp.org ↗" to read the original on the official 3GPP server.
Contributions at RAN1#124bis · 1 doc
Discussion on bandwidth operation for 6GR
Position extracted by AI
NEC proposes studying the introduction of BWP concept in 6GR for both DL and UL (Proposal 1), driven by the continued existence of mismatched UE/NW bandwidth capabilities and UE power consumption issues (Observation 1). They propose redefining BWP in 6GR to support non-continuous PRBs across multiple carriers and to decouple DL and UL BWP frequency locations/bandwidths, enabled by the consistent SCS per band and the potential SCMC framework (Proposal 2). NEC proposes relaxing the NR restriction that confines DL bandwidth to CORESET#0 during initial access (Proposal 3) and studies two alternatives for initial BWP operation: a single common pair or multiple pairs with UE selection (Proposal 4), with corresponding options for post-initial access BWP operation (Proposal 5). They propose studying multiple BWP switching schemes including low-power signal and timer-based triggers (Proposal 6), enhancing BWP switching reliability (Proposal 7), and relaxing common message scheduling restrictions tied to CORESET#0 RB numbers (Proposal 8). For multi-carrier operation, NEC proposes studying carrier assignment for common signaling under the SCMC framework (Proposal 9) and the relationship between initial BWPs and carriers (Proposal 10).
Summary
This 3GPP RAN1 contribution from NEC (Tdoc R1-2601859) discusses bandwidth part (BWP) and multi-carrier operation for 6G radio (6GR), presenting 2 observations and 10 proposals. The document addresses the necessity, definition, initial access, and post-initial access operations of BWP, and also covers multi-carrier operation during initial access under a potential Single Cell Multiple Carrier (SCMC) framework.
Prior contributions
NEC has no prior contributions to 10.5.1.3 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
The AI extracted the "position extracted" field above directly from each Tdoc during summarization.
For the delta summary at the top, the AI compared NEC's consolidated stance at RAN1#124bis
against their stance at RAN1#124 and classified the change as
new.
Always verify critical claims against the original Tdocs linked above.