5MHz for FR1 Rel-18

 RAN1#110-bis-e

9.166   NR support for dedicated spectrum less than 5MHz for FR1

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.


 RAN1#111

9.16   NR support for dedicated spectrum less than 5MHz for FR1

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

9.16.11     Enhancements to operate NR on dedicated spectrum less than 5 MHz

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.

 

 

Agreement

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


 RAN1#112

9.16   NR support for dedicated spectrum less than 5MHz for FR1

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

9.16.11     Enhancements to operate NR on dedicated spectrum less than 5 MHz

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.


 RAN1#112-bis-e

9.144   NR support for dedicated spectrum less than 5MHz for FR1

No contributions in RAN1#112bis-e.


 RAN1#113

9.13   NR support for dedicated spectrum less than 5MHz for FR1

Please refer to RP-230186 for detailed scope of the WI on NR support for dedicated spectrum less than 5MHz for FR1. Rapporteur to provide initial input on higher layer signalling under agenda item 9.13. For input on higher layer signalling from any other source, please include it as part of your tdoc to relevant sub-agenda items.

 

R1-2306149         Session notes for 9.13 (NR support for dedicated spectrum less than 5MHz for FR1)        Ad-Hoc Chair (CMCC)

 

[113-R18-FR1<5MHz] – Yuantao (Lenovo)

Email discussion on NR support for dedicated spectrum less than 5MHz

-        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

9.13.11    Enhancements to operate NR on dedicated spectrum less than 5 MHz

R1-2304360         Discussion on less than 5 MHz dedicated spectrum              FUTUREWEI

R1-2304506         Discussion on NR support for dedicated spectrum less than 5MHz              vivo

R1-2304583         Discussion on enhancements to operate NR on dedicated spectrum              Spreadtrum Communications

R1-2304601         Discussion on Enhancements to operate NR on dedicated spectrum less than 5 MHz ZTE

R1-2304630         Discussion on dedicated spectrum less than 5 MHz for FR1              Huawei, HiSilicon

R1-2304887         Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz   xiaomi

R1-2304978         Enhancements to operate NR on dedicated spectrum less than 5 MHz      Lenovo

R1-2305026         NR support for below 5 MHz BW   Nokia, Nokia Shanghai Bell

R1-2305148         Discussion on enhancements for dedicated spectrum less than 5 MHz      LG Electronics

R1-2305185         NR support of spectrum less than 5MHz for FR1        Ericsson

R1-2305274         NR support of spectrum less than 5MHz for FR1        Apple

R1-2305364         NR support for dedicated spectrum less than 5MHz for FR1              Qualcomm Incorporated

R1-2305541         Enhancements to operate NR on dedicated spectrum less than 5 MHz      Samsung

R1-2305550         Discussion on operation of NR on dedicated spectrum less than 5 MHz      Rakuten Mobile, Inc

R1-2305619         Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz   NTT DOCOMO, INC.

R1-2305629         Open issues of dedicated spectrum less than 5MHz for FR1      TD Tech, Chengdu TD Tech

R1-2305984         On dedicated spectrum less than 5 MHz        MediaTek Inc.              (rev of R1-2305648)

 

R1-2306107         Summary#1 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Tuesday session

Agreement

If working assumption made in RAN1#112 is confirmed,

For 12PRBs PBCH transmission BW for 3MHz channel BW, the upper 4PRBs and lower 4PRBs of NR 20PRBs PBCH are punctured, otherwise,

For 12PRBs PBCH transmission BW for 3MHz channel BW, the upper 4PRBs and lower 4PRBs of NR 20PRBs PBCH are not used.

 

 

R1-2306154         Summary#2 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

Presented in Wednesday session

 

R1-2306218         Summary#3 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Thursday session

Agreement

 

Agreement

Confirm following RAN1#112 working assumption

Working Assumption

For transmission bandwidth[s] of <5MHz, for PBCH, in the case[s] that available PRBs for PBCH transmission is 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

 

 

From AI 5 of RAN1#112bis-e

R1-2302269         Reply LS on NR support for dedicated spectrum less than 5 MHz for FR1      RAN4, Qualcomm

R1-2306240         DRAFT Reply LS on NR support for dedicated spectrum less than 5 MHz for FR1        Moderator (Nokia)

Decision: The draft LS is endorsed in principle. Final LS is approved in R1-2306241.


 RAN1#114

9.13   NR support for dedicated spectrum less than 5MHz for FR1

Please refer to RP-231425 for detailed scope of the WI on NR support for dedicated spectrum less than 5MHz for FR1. Including any input on higher layer signaling (provide input as part of tdoc in each sub-agenda item).

 

R1-2308552         Session notes for 9.13 (NR support for dedicated spectrum less than 5MHz for FR1)        Ad-Hoc Chair (CMCC)

Endorsed and contents incorporated below.

 

[114-R18-FR1<5MHz] – Yuantao (Lenovo)

Email discussion on NR support for dedicated spectrum less than 5MHz

-        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

9.13.11    Enhancements to operate NR on dedicated spectrum less than 5 MHz

R1-2306393         Open issues of dedicated spectrum less than 5MHz for FR1      TD Tech, Chengdu TD Tech

R1-2306437         Discussion on less than 5 MHz dedicated spectrum              FUTUREWEI

R1-2306531         Discussion on dedicated spectrum less than 5 MHz for FR1              Huawei, HiSilicon

R1-2306670         Discussion on enhancements to operate NR on dedicated spectrum              Spreadtrum Communications

R1-2306775         Remaining issues on NR support for dedicated spectrum less than 5MHz    vivo

R1-2306897         NR support for below 5 MHz BW   Nokia, Nokia Shanghai Bell

R1-2306987         Discussion on NR operation for dedicated spectrum less than 5 MHz      ZTE

R1-2307308         NR support of spectrum less than 5MHz for FR1        Apple

R1-2307361         Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz   xiaomi

R1-2307415         Enhancements to operate NR on dedicated spectrum less than 5 MHz      Lenovo

R1-2307495         Discussion on enhancements to operate NR on dedicated spectrum less than 5 MHz   NTT DOCOMO, INC.

R1-2307705         Enhancements to operate NR on dedicated spectrum less than 5 MHz      Samsung

R1-2307770         Discussion on Enhancements on NR dedicated spectrum less than 5MH      Transsion Holdings

R1-2307796         Discussion on enhancements for dedicated spectrum less than 5 MHz      LG Electronics

R1-2307800         NR support of spectrum less than 5MHz for FR1        Ericsson

R1-2307954         NR support for dedicated spectrum less than 5MHz for FR1              Qualcomm Incorporated

R1-2308040         On dedicated spectrum less than 5 MHz        MediaTek Inc.

 

R1-2308406         Summary#1 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Tuesday session

Agreement

For 3MHz channel BW, the 15 PRBs CORESET#0 is obtained by puncturing the 9 upper PRBs of 𝑁RB CORESET = 24 CORESET#0.

 

Agreement (revised in Friday session)

For 3MHz channel BW, for kssb and PRB offset for the determining the CORESET#0 position in frequency domain,

Note: the above assumes that PRB offset to be the frequency gap between the first PRB of the actually transmitted 12/15 PRBs CORESET#0 and the first CRB overlapping with the first PRB of the actually transmitted 12 PRBs SS/PBCH block, how to capture it in the specification is left to editors.

 

 

R1-2308422         Summary#2 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Wednesday session

Agreement

For CORESET#0 for less than 5MHz transmission bandwidth, the UE assumes the same precoding being used per REG bundle.

Note: This depends on UE implementation whether channel estimation can be performed for partial REG bundle, if any.

 

 

R1-2308587         Summary#3 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Friday session

Agreement

Revise the previous agreement as below,

Agreement

For 3MHz channel BW, for kssb and PRB offset for the determining the CORESET#0 position in frequency domain,

·       kssb follows legacy configuration.

o    Note: based on existing specifications, UE does not expect other values than kssb = 0 for 12PRBs CORESET#0, [kssb = 8 [or 20] for 15PRBs CORESET#0 with offset 0 PRBs, kssb = 4 [or 16] for 15RPBs CORESET#0 with offset 2 PRBs]

·       PRB offset

o    For 12 PRBs CORESET#0 transmission BW, PRB offset = 0

o    For 15 PRBs CORESET#0 transmission BW, at least PRB offset = 0, [2] 2 are supported

§  FFS if offset = 1, 3 are supported.

Note: the above assumes that PRB offset to be the frequency gap between the first PRB of the actually transmitted 12/15 PRBs CORESET#0 and the first CRB overlapping with the first PRB of the actually transmitted 12 PRBs SS/PBCH block, how to capture it in the specification is left to editors.

Note: the range of the PRB offsets is only applicable to the introduced new sync. raster points for 3MHz channel BW and 100kHz channel raster.

 

Agreement

For 3MHz channel BW, Table 13-0 is used by the UE for CORESET#0 configuration only when the detected SSB is from a new synch raster point in RAN4.

FFS: any specification impact.

 

Agreement

For dedicated spectrum with less than 5MHz transmission BW, if a UE is not provided initialDownlinkBWP, the location and size of the initial DL BWP is equal to that of CORESET#0 transmission BW, i.e.,

Note: whether/how to reflect the above is up to Editor.

 

Conclusion (based on RAN1#113 agreement)

For 2 symbols and 3 symbols for 15 PRBs CORESET#0, both interleaved and non-interleaved CCE to REG mapping are supported.

 

Agreement

For 5MHz channel BW, 20 PRBs CORESET#0 transmission BW is supported.

 

 

Final summary in R1-2308607.


 RAN1#114-bis

8.9      Maintenance on NR Support for Dedicated Spectrum Less than 5MHz for FR1

R1-2310548         Session notes for 8.9 (Maintenance on NR support for dedicated spectrum less than 5MHz for FR1)          Ad-Hoc Chair (CMCC)

Friday decision: The session notes are endorsed and contents reflected below.

 

[114bis-R18-FR1<5MHz] – Yuantao (Lenovo)

Email discussion on NR support for dedicated spectrum less than 5MHz

-        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

 

R1-2309902         Introduction of NR support for dedicated spectrum less than 5MHz for FR1 to TS 38.300            Nokia (Rapporteur)

Discussion postponed to next meeting.

8.9.11       Enhancements to operate NR on dedicated spectrum less than 5 MHz

R1-2308897         Maintenance of dedicated spectrum less than 5 MHz  Huawei, HiSilicon

R1-2308941         Discussion on less than 5 MHz dedicated spectrum              FUTUREWEI

R1-2308997         Maintenance on enhancements to operate NR on dedicated spectrum              Spreadtrum Communications

R1-2309134         Remaining issues on dedicated spectrum less than 5 MHz              ZTE

R1-2309248         NR support for below 5 MHz BW   Nokia, Nokia Shanghai Bell

R1-2309305         Remaining issues of enhancements for dedicated spectrum less than 5 MHz          LG Electronics

R1-2309388         Remaining issues for enhancements to operate NR on dedicated spectrum less than 5 MHz Samsung

R1-2309653         Open issues of dedicated spectrum less than 5MHz for FR1      TD Tech, Chengdu TD Tech

R1-2309805         Remaining issues on dedicated spectrum less than 5 MHz              Lenovo

R1-2309845         NR support of spectrum less than 5MHz for FR1        Apple

R1-2309889         Maintenance on NR support of spectrum less than 5MHz for FR1              Ericsson

R1-2309975         Maintenance on dedicated spectrum less than 5MHz   MediaTek Inc.

R1-2310044         Remaining issues on enhancements to operate NR on dedicated spectrum less than 5 MHz NTT DOCOMO, INC.

R1-2310154         NR support for dedicated spectrum less than 5MHz for FR1              Qualcomm Incorporated

 

R1-2310377         Summary#1 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

Presented in Monday session.

 

R1-2310378         Summary#2 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Wednesday session

Working Assumption

For 3MHz channel BW,

·       For the new sync. raster point (=920.73MHz, GSCN 41637 on band n100), UE supports 12 PRB BWP

·       For other new sync raster points, UE supports 15 PRB BWP

o   Note: it does not introduce any new interpretation on FG6-1

Note: it will be a conclusion when this working assumption is confirmed.

 

 

R1-2310498         Summary#3 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Thursday session

Conclusion

No consensus in RAN1 to support any enhancements for CSI-RS/TRS for dedicated spectrum less than 5MHz transmission BW.

Note: it is RAN1 understanding that the UE is not expected to use CSI-RS for RRM measurements for dedicated spectrum less than 5MHz transmission BW.

 

Conclusion

No consensus in RAN1 to support any enhancements for common PUCCH for dedicated spectrum less than 5MHz transmission BW.

 

Agreement

·       Adopt following text proposals to Section7.4.3.1, TS38.211 in principle,

---------------------------------------------<Omitted text>--------------------------------------

The quantity  is the subcarrier offset from subcarrier 0 in common resource block  to the lowest subcarrier 0 of the SS/PBCH block after puncturing, if any, where  is obtained from the higher-layer parameter offsetToPointA.

---------

For an SS/PBCH block, the UE shall assume

-        antenna port  is used for transmission of PSS, SSS, PBCH and DM-RS for PBCH,

-        ……………

-           the centre of subcarrier 0 of resource block  coincides with the centre of subcarrier 0 of a common resource block with the subcarrier spacing

o    provided by the higher-layer parameter subCarrierSpacingCommon for operation without shared spectrum channel access in FR1 and FR2-1; and

o    same as the subcarrier spacing of the SS/PBCH block for operation without shared spectrum access in FR2-2 and for operation with shared spectrum channel access.

-        This common resource block overlaps with subcarrier 0 of the first lowest resource block of the SS/PBCH block after puncturing, if any.

---------------------------------------------<Omitted text>--------------------------------------

 

Agreement

·       Adopt following text proposal to section 4.4.4.2, TS38.211 in principle.

---------------------------------------------<Omitted text>--------------------------------------

offsetToPointA for a PCell downlink where offsetToPointA represents the frequency offset between point A and the lowest subcarrier of the lowest resource block, which overlaps with the SS/PBCH block after puncturing, if any, used by the UE for initial cell selection, expressed in units of resource blocks assuming 15 kHz subcarrier spacing for FR1 and 60 kHz subcarrier spacing for FR2…

---------------------------------------------<Omitted text>--------------------------------------

 

Agreement

·       For non-interleaved CCE to REG mapping for 3MHz channel BW for 15 PRB CORESET#0, f(x) = x.

·       For interleaved CCE to REG mapping for dedicated spectrum with transmission BW less than 5MHz, nshift = cell ID as in legacy.

Conclusion

·       For 3MHz channel BW for the sync. raster point (920.73MHz, GSCN 41637), the UE shall support 12 PRB CORESET#0 during initial access.

·       For 3MHz channel BW for the sync. raster points for 15 PRB transmission BW, the UE shall support 15 PRB CORESET#0 during initial access.

 

For 38.211 editor:

The above endorsed text proposals for TS 38.211 are also collected in R1-2310569. Please consider them in the next specification revision.

R1-2310569         Summary on the agreed text proposals for dedicated spectrum less than 5MHz  Moderator (Lenovo)


 RAN1#115

8.9      Maintenance on NR Support for Dedicated Spectrum Less than 5MHz for FR1

R1-2312508         Session notes for 8.9 (Maintenance on NR support for dedicated spectrum less than 5MHz for FR1)          Ad-Hoc Chair (Huawei)

Friday decision: The session notes are endorsed and contents reflected below.

 

[115-R18-FR1<5MHz] – Yuantao (Lenovo)

Email discussion on NR support for dedicated spectrum less than 5MHz

-        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

 

 

R1-2311357         Introduction of NR support for dedicated spectrum less than 5MHz for FR1 to TS 38.300          Nokia (WI Rapporteur)

From Tuesday session

Agreement

Endorse the TP below for TS 38.300 and send it in an LS to RAN2

 

Reason for change:

Introduction of changes related to WI “NR support for dedicated spectrum less than 5MHz for FR1”

 

 

Summary of change:

Adding a remark that with 3MHz Channel BW the PBCH is punctured down to 144 subcarriers (i.e. 12 PRBs)

 

 

Consequences if not approved:

Incomplete description of the PBCH in case of operation with 3MHz CBW.

---  < Start of the Text Proposal > ---

<Unchanged text omitted>

5.2.4         Synchronization signal and PBCH block

The Synchronization Signal and PBCH block (SSB) consists of primary and secondary synchronization signals (PSS, SSS), each occupying 1 symbol and 127 subcarriers, and PBCH spanning across 3 OFDM symbols and 240 subcarriers, but on one symbol leaving an unused part in the middle for SSS as show in Figure 5.2.4-1. For the 3 MHz channel bandwidth, the PBCH is further equally punctured from both edges to span 144 subcarriers. The possible time locations of SSBs within a half-frame are determined by sub-carrier spacing and the periodicity of the half-frames where SSBs are transmitted is configured by the network. During a half-frame, different SSBs may be transmitted in different spatial directions (i.e. using different beams, spanning the coverage area of a cell).

Within the frequency span of a carrier, multiple SSBs can be transmitted. The PCIs of SSBs transmitted in different frequency locations do not have to be unique, i.e. different SSBs in the frequency domain can have different PCIs. However, when an SSB is associated with an RMSI, the SSB is referred to as a Cell-Defining SSB (CD-SSB). A PCell is always associated to a CD-SSB located on the synchronization raster.

Figure 5.2.4-1: Time-frequency structure of SSB

Polar coding is used for PBCH.

The UE may assume a band-specific sub-carrier spacing for the SSB unless a network has configured the UE to assume a different sub-carrier spacing.

PBCH symbols carry its own frequency-multiplexed DMRS.

QPSK modulation is used for PBCH.

The PBCH physical layer model is described in TS 38.202 [20].

<Unchanged text omitted>

---  < End of the Text Proposal > ---

Comeback for draft LS

R1-2312457         DRAFT LS on Introduction of NR support for dedicated spectrum less than 5MHz for FR1 to TS 38.300      Moderator (Nokia)

Thursday decision: The draft LS in R1-2312457 is endorsed. Final LS is approved in R1-2312458.

8.9.11       Enhancements to operate NR on dedicated spectrum less than 5 MHz

R1-2310966         Maintenance on NR support of spectrum less than 5MHz for FR1              Ericsson

R1-2311022         Remaining issues on dedicated spectrum less than 5 MHz              ZTE

R1-2311355         Discussion on enhancements to operate NR on dedicated spectrum less than 5MHz    CATT

R1-2311356         NR support for below 5 MHz BW   Nokia, Nokia Shanghai Bell

R1-2311633         Remaining issues on enhancements to operate NR on dedicated spectrum less than 5 MHz NTT DOCOMO, INC.

R1-2311725         Remaining issues on dedicated spectrum less than 5 MHz              Lenovo

R1-2311857         Maintenance on enhancements to operate NR on dedicated spectrum less than 5 MHz Samsung

R1-2311898         Remaining issues of enhancements for dedicated spectrum less than 5 MHz          LG Electronics

R1-2311988         Maintenance on dedicated spectrum less than 5MHz   MediaTek Inc.

R1-2312048         NR support for dedicated spectrum less than 5MHz for FR1              Qualcomm Incorporated

R1-2312133         Further discussion on dedicated spectrum less than 5MHz for FR1              TD Tech, Chengdu TD Tech

R1-2312151         Enhancements to operate NR on dedicated spectrum less than 5 MHz      Huawei, HiSilicon

 

R1-2312397         Summary#1 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Tuesday session

Agreement

Confirm the following working assumption as a conclusion.

Working Assumption

For 3MHz channel BW,

-           For the new sync. raster point (=920.73MHz, GSCN 41637 on band n100), UE supports 12 PRB BWP

-           For other new sync raster points, UE supports 15 PRB BWP

o    Note: it does not introduce any new interpretation on FG6-1

Note: it will be a conclusion when this working assumption is confirmed

 

 

R1-2312398         Summary#2 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz Moderator (Lenovo)

R1-2312567         Summary#3 of discussion on enhancements to operate NR on dedicated spectrum less than 5MHz           Moderator (Lenovo)

From Thursday session

Agreement

The TP in Proposal 6-1 in section 6 of R1-2312567 for TS38.213 clause 10.1 is endorsed.

 

Conclusion

For the  and  for PUCCH resource determination for CORESET#0, the CORESET for PUCCH resource determination is obtained as described in clause 7.3.2.2 of [4, TS 38.211] before puncturing if applicable.

 

Agreement

The TP in Proposal 6-3 in section 6 of R1-2312567 for TS38.214 clause 5.1 in endorsed.

 

R1-2312563         DRAFT LS on inter-frequency neighbour cells supporting NR dedicated spectrum less than 5 MHz for FR1          Qualcomm Incorporated

Proposal 6-4

RAN1 to send an LS to RAN2 (cc RAN4) on any backward compatibility issue of inter-frequency neighbour cell list for single carrier operation in NR dedicated spectrum less than 5 MHz for FR1.

 

R1-2312602         DRAFT LS on inter-frequency neighbour cells supporting NR dedicated spectrum less than 5 MHz for FR1          Qualcomm Incorporated

Friday decision: The draft LS to RAN2 and RAN4 in R1-2312602 is endorsed. Final LS is approved in R1-2312668.