Please refer to RP-222645 for detailed scope of the WI on NR support for dedicated spectrum less than 5MHz for FR1.
This agenda item will not be treated in RAN1#110bis-e. No contributions please.
Please refer to RP-222645 for detailed scope of the WI on NR support for dedicated spectrum less than 5MHz for FR1.
R1-2212852 Session notes for 9.16 (NR support for dedicated spectrum less than 5MHz for FR1) Ad-hoc Chair (CMCC)
Endorsed and contents incorporated below.
[111-R18-<5MHz] – Yuanchao (Lenovo)
To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc
R1-2212398 Work Plan for NR support for dedicated spectrum less than 5MHz for FR1 Nokia, Nokia Shanghai Bell
R1-2210834 Enhancements for less than 5 MHz dedicated spectrum FUTUREWEI
R1-2210869 Discussion on dedicated spectrum less than 5 MHz for FR1 Huawei, HiSilicon
R1-2211036 Discussion on NR support for dedicated spectrum less than 5MHz vivo
R1-2211050 Discussion on dedicated spectrum less than 5MHz for FR1 ZTE
R1-2211132 PBCH design for dedicated spectrum less than 5MHz for FR1 TD Tech, Chengdu TD Tech
R1-2211353 Views on enhancements to operate NR on dedicated spectrum less than 5 MHz xiaomi
R1-2211391 Discussion on NR operation with less than 5MHz Bandwidth Intel Corporation
R1-2211547 Discussion on enhancements to operate NR on dedicated spectrum Spreadtrum Communications
R1-2211572 Enhancements to operate NR on dedicated spectrum less than 5 MHz Lenovo
R1-2211770 NR support of spectrum less than 5MHz for FR1 Ericsson
R1-2212012 Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz NTT DOCOMO, INC.
R1-2212076 Enhancements to operate NR on dedicated spectrum less than 5 MHz Samsung
R1-2212148 NR support for dedicated spectrum less than 5MHz in FR1 Qualcomm Incorporated
R1-2212247 On dedicated spectrum less than 5 MHz MediaTek Inc.
R1-2212307 Discussion on enhancements for dedicated spectrum less than 5 MHz LG Electronics
R1-2212397 NR support for below 5 MHz BW Nokia, Nokia Shanghai Bell
R1-2212755 Summary of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz Moderator (Lenovo)
From Nov 15th session
Agreement
In an LS to RAN4, in addition to reuse 5 MHz channel bandwidth, RAN1 suppose only 3 MHz channel bandwidth is supported, and would like to get RAN4 responses on the maximum transmission bandwidth (the number of PRBs) for this channel BW.
Agreement
RAN1 would like to ask RAN4 if finer sync. raster for the 3MHz and/or 5MHz channel bandwidth is feasible, as well as any input from RAN1 for RAN4’s answer to this question.
Agreement
Before getting RAN4 responses, RAN1 assume maximum transmission bandwidth, 15RBs or 16RBs for 3 MHz channel BW for evaluation and analysis.
Note: include agreement into the LS
Agreement
Before getting RAN4 responses, RAN1 assume that the UE could know which RBs are used for SSB transmission after PSS/SSS is detected for evaluation and analysis.
Note: it does not mean indication signaling is needed.
Note: include this agreement into the LS.
R1-2212888 Summary#2 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz Moderator (Lenovo)
From Nov 17th session
Agreement
Including following 2 questions into the LS
Question 1: RAN1’s understanding is that in addition to reuse 5 MHz channel bandwidth, RAN1 suppose only 3 MHz channel bandwidth is supported, and would like to get RAN4 responses on the maximum transmission bandwidth (the number of PRBs) for this channel BW
Question 2: RAN1 have discussed aspects related to synch raster in the spectrum of interest. RAN1 would like to ask RAN4 if finer sync. raster for the 3MHz and/or 5MHz channel bandwidth is feasible, as well as if RAN4 needs any input from RAN1.
R1-2212898 [Draft] LS on NR support for dedicated spectrum less than 5MHz for FR1 Nokia
Decision: From Nov 17th session, the draft LS to RAN4 R1-2212898 is endorsed in principle with the modified questions as agreed above and all agreements and conclusions made in RAN1#111. Final LS is approved in R1-2212919.
For transmission bandwidths of <5MHz for 3MHz and 5MHz channel bandwidth, a subset of PRBs of 20-PRB PBCH are used for PBCH transmission if the transmission BW of a channel is less than 20PRBs.
· FFS which PRBs are used and how to use the PRBs
· Note: PRBs for PSS/SSS are not punctured.
Agreement
For CORESET#0 configuration for transmission bandwidths <5 MHz for 3MHz and 5MHz channel bandwidth, following options are for study,
· Opt.1: Existing configuration table for 15kHz SCS, 5MHz minimum channel BW (i.e., table 13-1 in TS38.213) is reused for configuration
· Opt.2: A new CORESET#0 configuration table is to be introduced for the configuration.
Conclusion
No enhancements are required for PRACH to operate NR on transmission bandwidths of <5MHz for 3MHz and 5MHz channel bandwidth.
· Note: PRACH formats and configurations not fitting into the transmission BW are not applicable
Agreement
Short PRACH formats with 15kHz SCS, and long PRACH formats with 1.25kHz SCS are supported for transmission bandwidths <5 MHz for 3MHz and 5MHz channel bandwidth.
Conclusion
No enhancements are needed for PUCCH to support transmission bandwidths of <5MHz for 3MHz and 5MHz channel bandwidth,
· FFS: the necessity for PUCCH FH disabling.
Agreement
Study whether and how to recover PDCCH detection performance of CORESET#0 for transmission bandwidths of <5MHz for 3MHz and 5MHz channel bandwidth. The following options are considered,
· Opt.1: Power boosting
· Opt.2: Non-interleaved CCE-to-REG mapping
· Opt.3: A new interleaver to ensure PDCCH is fully mapped in the spectrum
· Opt.4: New aggregation level(s) for fit in the spectrum
· Opt.5: PDCCH rate matching
· Opt.6.: no enhancement specified
Agreement
Study whether and how to recover PBCH detection performance for transmission bandwidths of <5MHz for 3MHz and 5MHz channel bandwidth. The following options are considered,
· Opt.1: Power boosting
· Opt.2: Multiple PBCH receptions
· Opt.3: PBCH remapping
· Opt.4: PBCH payload reduction
· Opt.5: PBCH rate matching around the punctured PRBs
· Opt.6: no enhancement specified
Please refer to RP-222645 for detailed scope of the WI on NR support for dedicated spectrum less than 5MHz for FR1.
R1-2302071 Session notes for 9.16 (NR support for dedicated spectrum less than 5MHz for FR1) Ad-hoc Chair (CMCC)
[112-R18-FR1<5MHz] – Yuantao (Lenovo)
To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc
R1-2300059 Discussion on enhancements for less than 5 MHz dedicated spectrum FUTUREWEI
R1-2300115 Discussion on dedicated spectrum less than 5 MHz for FR1 Huawei, HiSilicon
R1-2300247 Discussion on enhancements to operate NR on dedicated spectrum Spreadtrum Communications
R1-2300316 Open issues of dedicated spectrum less than 5MHz for FR1 TD Tech, Chengdu TD Tech
R1-2300347 Discussion on dedicated spectrum less than 5MHz for FR1 ZTE
R1-2300483 Discussion on NR support for dedicated spectrum less than 5MHz vivo
R1-2300565 Views on enhancements to operate NR on dedicated spectrum less than 5 MHz xiaomi
R1-2300786 Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz NICT
R1-2300859 Enhancements to operate NR on dedicated spectrum less than 5 MHz Lenovo
R1-2300975 Discussion on NR operation with less than 5MHz Bandwidth Intel Corporation
R1-2301096 NR support for below 5 MHz BW Nokia, Nokia Shanghai Bell
R1-2301114 Discussion on enhancements for dedicated spectrum less than 5 MHz LG Electronics
R1-2301154 NR support of spectrum less than 5MHz for FR1 Ericsson
R1-2301296 Enhancements to operate NR on dedicated spectrum less than 5 MHz Samsung
R1-2301378 On dedicated spectrum less than 5MHz for FR1 Apple
R1-2301445 NR support for dedicated spectrum less than 5MHz in FR1 Qualcomm Incorporated
R1-2301463 On enhancements to operate NR on dedicated spectrum less than 5 MHz KT Corp.
R1-2301523 Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz NTT DOCOMO, INC.
R1-2301784 On dedicated spectrum less than 5 MHz MediaTek Inc. (rev of R1-2301610)
R1-2301975 Summary of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz Moderator (Lenovo)
From Monday session
Conclusion
For transmission bandwidths of <5MHz for 3MHz channel bandwidth, for CSI-RS other than for RRM measurements, no enhancements are needed.
· FFS: CSI-RS for RRM
R1-2302132 Summary of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz Moderator (Lenovo)
From Thursday session
Agreement
Working Assumption
For transmission bandwidth[s] of <5MHz, for PBCH, in the case[s] that available PRBs for PBCH transmission are less than 20PRB,
· PBCH based on RB-level puncturing (i.e., PBCH encoding is based on 20PRB. The encoded bits and DMRS are mapped to 20PRBs based on legacy SSB structure, and those PRBs that fall outside of available PRBs for PBCH transmission are punctured)
· Note: No other optimization is needed
R1-2302157 DRAFT LS to RAN on transmission bandwidths for NR on dedicated spectrum less than 5 MHz Moderator (Nokia)
Decision: Draft LS in R1-2302157 is endorsed in principle. Final LS is approved in R1-2302186.
Final summary in R1-2302219.
No contributions in RAN1#112bis-e.