3GPP TSG RAN WG1 #120bis			       R1-2501743
Wuhan, China, April 7th – 11th, 2025

Agenda Item:		9.2.2
Source:				InterDigital, Inc.
Title:						On Specifications of Rel-19 Enhancements of CSI
Document for:		Discussion and Decision

Conclusions
In this contribution, we discussed the scope of enhancements for Objectives 2. We make the following observation and proposal for CSI:

Observation 1: Based on the CRs provided during the offline discussion, companies have different views of Rel-19 CBSR enhancements.

Proposal 1: Support understanding-1 of Rel-19 CBSR, i.e., Rel-19 CBSR is a new scheme with no relation to the legacy two-level CBSR and designed to reduce RRC overhead.

Proposal 2: Adopt the following changes in the CR for 38.214: 
Reason of change: To correct a typo.
Summary of change: A wrong variable, i.e.,  is used instead of  in definition of a bit sequence.
Consequences if not approved: The length of a CBSR bit sequence will be wrong.

Suggested edits:

3GPP TSG RAN WG1 Meeting #120bis	R1-2501781
Wuhan, China, April 7th –11th, 2025

Source:	ZTE Corporation, Sanechips
Title:	Discussion on CSI enhancements
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusion
In summary, we have the following observations and proposals for CSI enhancement:
Observation 1: Extending Rel-19 SP Type-I codebook (scheme-A) to ≤32 ports can significantly improve the performance for RI=3-4 (approximately 8.1% gain in average).
Observation 2: To guarantee the performance of reciprocity-based CJT, the inter-TRP UL/DL timing offset quantization granularity should be no larger than 2ns. 
Proposal 1: For the Rel-19 Type-I SP codebook refinement for 48, 64, and 128 CSI-RS ports, at least extend the agreed Scheme-A to 16, 24, and 32 CSI-RS ports.
Proposal 2: Support RAN1#120 proposal 3.G.1.
Proposal 3: Support RAN1#120 proposal 3.H.
Proposal 4: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, regarding the extended amount of Z/Z’, i.e., Drelax={0, drelax}, for jointly triggered CJTC Dd report and Rel-18 eType-II CJT CSI report, support drelax=Z1’.
This issue should be discussed in the UE feature session.
Proposal 5: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when a linkage between CJTC Dd and Rel-18 eType-II CJT CSI report configurations is configured with two separate triggers, introduce a UE capability of maximum buffering time of the CJTC Dd report.
This issue should be discussed in the UE feature session.
Text proposal 1: Adopt the following text changes in section 5.2.2.5 of TS 38.214 and section 6.3.1.1.2 of TS 38.212.

Text proposal 2: Adopt the following text change in section 5.2.2.2.1a of TS 38.214.
Text proposal 3: Adopt the following text changes in sections 5.2.2.2.1a, 5.2.2.2.2a, 5.2.2.2.5a, 5.2.2.2.9a and 5.2.2.2.11a of TS 38.214 and section 7.4.1.5.3 of TS 38.211.
Text proposal 4: Adopt the following text change in sections 5.2.2.2.5a and 5.2.2.2.11a of TS 38.214.

3GPP TSG RAN WG1 #120bis	R1-2501800
Wuhan, China, April 7th – 11th, 2025

Source:	vivo
Title:	Remaining issues on Rel-19 CSI enhancements
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusions 
To summarize, we have the following proposals and observations.
Proposal 1: Regarding the mapping from CSI-RS resource index and CSI-RS resource port index per resource to port index for CSI/PMI calculation, support capturing these two mapping methods in TS 38214 and removing the related content in TS 38211.
Observation 1: Based on the agreements, for the 3-bit scaling factor, UE shall directly use the 3-bit scaling factor on the SD basis vector i selected by layer i, where i=0,1.
Proposal 2: Adopt the following TP in CR of TS 38214.

Observation 2: KDOPP = {4, 8, 12} CSI-RS resource groups are introduced for Type-II Doppler CSI. This means that within a CMR group, there may be multiple CSI-RS ports with the same CSI-RS port index mapped to different antenna ports.
Proposal 3: Adopt the following TP in CR of TS 38214 for the UE configured with codebookType set to 'typeII-Doppler-r19'.

Proposal 4: Adopt the following TP in CR of TS 38214 to make the values of Dd and FO clearer

Proposal 5: Adopt the following TP in CR of TS 38214 to make a unified design for separate triggering and joint triggering.

3GPP TSG RAN WG1 #120-bis		R1-2501851 
Wuhan, China, April 7th  –  11th , 2025

Agenda Item: 9.2.2
Source: MediaTek Inc.
Title: CSI enhancements for up to 128 CSI-RS ports
Document for: Discussion and Decision

Conclusions
In summary, based on the above discussion we have the following proposals:
Proposal 1: The RAN1#116-bis agreement regarding the mapping from CSI-RS resource index/port index per resource and port index to CSI/PMI calculation is modified in red as follows (to include only Type-I SP and Type II codebooks):
 

Proposal 2: For the Rel-19 Type-I MP codebook refinement for 48, 64, and 128 CSI-RS ports, regarding the mapping from CSI-RS resource index/port index per resource and port index to CSI/PMI calculation, support the mapping method: (1st resource, port index 0), (1st resource, port index 1),…(1st resource, port index 2N1N2-1), then (2nd resource, port index 0), (2nd resource, port index 1),…(2nd resource, port index 2N1N2-1),…, then (Kth resource, port index 0), (Kth resource, port index 1),…( Kth resource, port index 2N1N2-1)

Proposal 3: The RAN1#116 agreement regarding (N1, N2) values should be modified in red as follows (to include only Type-I SP and Type-II codebooks):

3GPP TSG RAN WG1 #120b		          R1-2501863
Wuhan, China, April 7th – 11st, 2025
Agenda Item:     9.2.2
Source:	Spreadtrum, UNISOC
Title:	Remaining issues on CSI enhancements 
Document for:	Discussion and decision

Conclusion
In this contribution, we provided our views on the details of the remaining issues on CSI enhancements. The following proposals are made:
Type-I and Type-II codebook refinement for up to 128 CSI-RS ports
Proposal 1: For the Rel-19 Type-I SP codebook refinement for 48, 64, and 128 CSI-RS ports, extend the agreed Scheme-A and Scheme-B to 16, 24, and 32 CSI-RS ports, for all applicable RI values with K=1 only, and without any further modification/enhancement of the sub-features pertinent to the Rel-19 Type-I SP design (including, e.g. the Rel-19 Type-I SP CBSR, soft scaling).
For the Rel-19 Type-I SP codebook, the support for 16, 24, and 32ports are 3 separate UE capabilities from the support for the previously agreed number of ports (48, 64, 128 ports)
The Rel-18 SD NES schemes applicable to Rel-15 Type-I SP codebooks are also applicable to the extension of the Rel-19 Type-I SP codebook to 16, 24, and 32 ports 
FFS: whether to adopt the extended orthogonal set for the 2nd SD basis for Scheme-A, RI=2-4 and 16, 24, and 32 CSI-RS ports
CRI-based CSI for hybrid beamforming
Proposal 2: For the Rel-19 CRI-based CSI, configuring an available slot offset for each CSI-RS resource is not supported.
CJT calibration reporting for non-ideal synchronization and backhaul
Proposal 3: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with a joint trigger, the UE does not perform DO compensation on the Rel-18 type II CJT CSI associated with TRP(s) that are either ‘out of range’
Proposal 4: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with two separate triggers, when at least one of the NTRP reported delay offset (DO) values in a linked CJTC Dd report is ‘out of range’, the UE does not perform DO compensation on the triggered Rel-18 eType-II CJT CSI associated with TRP(s) that are ‘out of range’

3GPP TSG RAN WG1 #120bis		R1-2501950
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2
Source:	Google
Title:	CSI Enhancement for NR MIMO
Document for:	Discussion/Decision

Conclusion
In this contribution, we provided discussion on CSI enhancement for NR MIMO. Based on the discussion, the following proposals are provided.
Proposal 1: Support PD-NES for CSI report based on up to 128 ports to be aligned with Rel-18 NES principle that UE should support both Type1 SD and PD.
Proposal 2: For aperiodic SRS, the SRS transmission occasion for determining the reference UE antenna port corresponds to the latest SRS transmission occasion before the occasions of the NTRP CSI-RS resources used for measuring ‘cjtc-P’ report.
Proposal 3: Support the UE to select the associated SRS resource set for PO report as follows
When one periodic SRS resource set and one aperiodic SRS resource set are configured, UE selects the associated SRS resource based on the periodic SRS resource set
When two semi-persistent SRS resource sets are configured, UE selects the associated SRS resource based on the activated SRS resource set
When two aperiodic SRS resource sets are configured, UE selects the associated SRS resource based on the SRS resource set with lower set ID
Proposal 4: Support the NW to inform UE whether it transmits the CSI-RS resources for PO measurement with DO pre-compensation.
Proposal 5: If UE reports an invalid DO in the associated DO report, i.e., out-of-range, it calculates the CJT-CSI based on a default DO value, i.e., DO = 0.
Proposal 6: Support to define the additional delay Drelax for linked CJT-CSI and DO report based on Z2’
Proposal 7: Support the NW to configure the PRG size for the precoded CSI-RS for PO measurement and report.
Proposal 8: Clarify that the joint operation for Rel-19 CRI-based CSI refinement and Rel-18 cell DTX is supported

3GPP TSG RAN WG1 #120bis		                                                      R1-2501986
Wuhan, China, April 7th – 11th, 2025

Source:	CATT
Title:	Remaining issues on CSI enhancements for NR MIMO Phase 5
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusions
In this contribution, we provided our views remaining details on CJTC reporting and CSI enhancement for up to 128 CSI-RS ports. Finally, we made the following proposals:
Proposal 1: For the Rel-19 aperiodic standalone CJT calibration reporting, when ReportQuantity is ‘cjtc-P’ (DL/UL phase offset) and time-domain measurement restriction is not configured, N occasions of NTRP CSI-RS resources can be used to measure DL phase offsets.
N is configured by the network or predefined by the specification.
Proposal 2: For the Rel-19 aperiodic standalone CJT calibration reporting, adopt the following TP:
--------------------------------------- Start of TP for TS38.214------------------------------------------
5.2.1.4.1	Resource Setting configuration

For aperiodic CSI, a UE configured with a CSI-ReportConfig with the higher layer parameter reportQuantity set to 'cjtc-Dd', 'cjtc-F', 'cjtc-Dd-F' or 'cjtc-P' is expected to be configured with one CSI Resource Setting (given by higher layer parameter resourcesForChannelMeasurement). For reportQuantity set to 'cjtc-Dd', 'cjtc-F' or 'cjtc-Dd-F', the CSI Resource Setting is periodic with  CSI-RS Resource Sets configured with higher layer parameter trs-Info. For reportQuantity set to 'cjtc-P', the CSI Resource Setting is configured with  single-port CSI-RS Resources. Each of  CSI-RS Resources or Resource Sets are configured with a TCI-state by higher layer signalling. The UE expects that all the CSI-RS resources are configured with the same bandwidth. A UE is not expected to be configured with interference measurement on CSI-IM and/or NZP-CSI-RS.

--------------------------------------- End of TP for TS38.214----------------------------------------
Proposal 3: For the Rel-19 aperiodic standalone CJT calibration reporting, when ReportQuantity is ‘cjtc-Dd-F’, support configuring a UE to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using only the reported delay offset.
Reuse all the mechanisms of linking CJTC-Dd report and CJT eType-II report, including separate triggering and joint triggering.
CJT CSI pre-compensation based on frequency offset is not supported.
Proposal 4: For the Rel-19 aperiodic standalone CJT calibration reporting, adopt the following TP:
--------------------------------------- Start of TP for TS38.214------------------------------------------
5.2.1.4.2	Report quantity configurations

If the UE is configured with a CSI-ReportConfig with the higher layer parameter reportQuantity set to 'cjtc-Dd',

Subject to UE capability, the CSI-ReportConfig with reportQuantity set to 'cjtc-Dd' can be linked, by the higher layer parameter linkedCJTCReport, to an aperiodic CSI-ReportConfig with reportQuantity set to 'cri-RI-PMI-CQI' and codebookType set to 'typeII-CJT-r18' and with the corresponding CSI-RS resources for channel measurement that are aperiodic. The CSI-RS resource sets associated with the CJTC-Dd report are linked to the CSI-RS resources associated with the 'typeII-CJT-r18' report by a fixed correspondence between the resource set IDs and resource IDs, respectively, in sequential order of configuration in their respective Resource Setting.

--------------------------------------- End of TP for TS38.214----------------------------------------
Proposal 5: For the Rel-19 Type-I MP codebook refinement for 48, 64, and 128 CSI-RS ports, adopt the following table as the starting point for discussing the supported configurations of  and , with the red rows added in TS38.214.
Proposal 6: For the Rel-19 Type-I MP codebook refinement for 48, 64, and 128 CSI-RS ports, regarding the Mapping of i1,3 to :
Adopt the following table for 2 layer CSI reporting
Adopt the following table for 3-4 layer CSI reporting
Proposal 7: For the Rel-19 Type-I SP codebook refinement for 48, 64, and 128 CSI-RS ports, regarding the codebook sub-configurations for the SD NES Type 1, new mixed codebook combinations: {Rel-19 Type I SP scheme A, Rel-15 Type I SP, Null}, {Rel-19 Type I SP scheme B, Rel-15 Type I SP, Null} and {Rel-19 Type I MP codebook, Rel-15 Type I MP codebook, Rel-15 Type I SP, Null} in Rel-19 for FG codebookComboParameterAddition are introduced.
Proposal 8: For the Rel-19 Wideband multi-CRI CSI reporting on PUCCH, adopt the following TP:
--------------------------------------- Start of TP for TS38.212------------------------------------------
6.3.1.1.2	CSI only

Table 6.3.1.1.2-7B: Mapping order of CSI fields of one CSI report configured with valueOfM,
pmi-FormatIndicator=widebandPMI and cqi-FormatIndicator=widebandCQI 

--------------------------------------- End of TP for TS38.212----------------------------------------

3GPP TSG RAN WG1 #120-bis              						R1- 2502011
Wuhan, China, April 07th – April 11th, 2025

Agenda item:	      9.2.2
Source:	      Tejas Networks Ltd	
Title:		      CSI enhancement for NR MIMO Phase 5
Document for:     Discussion and Decision

Conclusions
In this section we provide a summary of our observations and proposals.
When M CRI based CSI reporting is introduced (with MR configured or not configured) in CSI multi-CRI reporting, the priority criteria associated with the nth report should be redefined as a function of the number of reported beams in a single CSI reporting instance.  In presence of resource contention and UCI omission, this weighing helps to manage CSI omission more efficiently as compared to legacy and improves the overall beam management performance of the network.
Ordering the first to last CRIs within the reported M-MR CRIs is beneficial during UCI packing and omission. And specifying the ordering of M CRIs including MR non-reported CRIs and M-MR reported CRIs is useful for spec completeness.

For the Rel-19 SRS port grouping feature, support the relevant enhancements to UE sounding procedure for DL CSI acquisition. One example specification change in TS38.214 can be; 
Note: It is up to the editor how this is captured in the specification

For the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports, regarding packing order of NRep CSI reports,
For reports with non-M CRI based CSI reports (Legacy CSI reports till Rel-18) should have higher priority over M CRIs based CSI reports.
For reports configured with MR resources should have higher priority over reports with non-MR based CSI reports. 
For reports with lower M values should have higher priority over higher M CRIs based CSI reports. 
        
       where 
m = 0 for non-M CRI based CSI reports. = 1 (legacy CSI reports up to Rel-18), 
m = 1 for M CRI based CSI reports.  is the maximum number of CRIs configured for multi-CRI CSI reports not carrying L1-RSRP or L1-SINR.
       Note: It is up to the editor how this is captured in the specification
For the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports, regarding UCI omission for the UCI reported in CSI part-2, support the following method for assigning priority levels (from higher to lower) to multiple CRIs in a single CSI instance.
For the non-reported MR CRIs, priority order is assigned based on the RRC configured order of MR.  
For the reported M-MR CRIs (or M CRIs if MR is not configured), priority order is assigned based on the beam quality measure and not based on the RRC configured order of resource config ids. 
                                Note: It is up to the editor how this is captured in the specification
For the Rel-19 CSI draft CR for 38.211, support to further study and define CSI-RS port mapping method for multi-panel Type-I codebook.
For the Rel-19 CSI draft CR for 38.214, support to add description to explicitly indicate that Group 1 CSI or Part 2 subband CSI of even subbands for any CSI report, inclusive of all CRIs, is not having a lower priority over Group 2 CSI or Part 2 subband CSI of odd subbands for the same CSI report, inclusive of all CRIs.







For the Rel-19 CSI draft CR for 38.214, support to enhance the text description and Table for priority reporting levels for Part 2 CSI for CSI omission as follows, to best align the agreements and the spec description. 
Table 5.2.3-1B: Priority reporting levels for Part 2 CSI for multi-CRI 

3GPP TSG RAN WG1 #120bis										         R1-2502074
Wuhan, China, April 7th – 11th, 2025

Agenda item:	9.2.2
Source:	NEC
Title:              	Discussion on CSI enhancements
Document for:	Discussion and Decision

Conclusion
In this contribution, we provided our views on some remaining issues of CSI enhancements, and we propose:
Proposal 1: UE behavior should be defined in case of reported DO value is ‘out of range’ (i.e. an infinite interval ). For example, the UE can do no pre-compensation or UE can do pre-compensation based on an exact value . 
Proposal 2: For CJT calibration reporting, support joint reporting of power information (e.g. RSRP) and CJT calibration reporting (at least for Delay offset). 
Proposal 3: Adopt the TP#1, TP#2 and TP#3. 
TP#1 for TS38.211 CSI-RS resources aggregation for >32 ports


TP#2 for TS38.214 subband phase offset report 

TP#3 for TS38.214 CPU for typeII-Doppler codebook 

3GPP TSG RAN WG1 #120bis	R1-2502108
Wuhan, China, Apr. 7th – 11th, 2025

Source:	Lenovo
Title:	Discussion on CSI enhancements
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusion
This contribution document addressed Rel-19 CSI enhancements. For CSI reporting enhancements for up to 128 ports, we have the following proposals:
For Rel-19 Type-I SP codebook refinement for Scheme B for Rank 5-6 for up to 128 ports, the supported number of SD basis vectors is ceil(v/2), i.e., 3 SD basis vectors.
Regarding capability 2 timeline for eType-II Doppler codebook using more than 32 ports, only scale the value of  by ceil(P/32) but not the entire  from legacy timeline for eType-II Doppler codebook.
Type 2 NES spatial domain adaptation is not supported for Rel-19 eType-I codebook.
Support power-domain NES enhancements for Rel-19 eType-I codebook refinement.
Extending the Rel-19 eType-I codebook to ≤ 32 ports is not prioritized.
If supported, this feature is limited to Scheme-B with at least > 8 ports.
Add ‘typeI-SinglePanel-r19’ as a candidate codebookType for each sub-configuration in the case of mixed codebook combination.


For CRI-based CSI reporting enhancements, we have the following proposal:
For Rel-19 CRI-based CSI refinement with Rel-15 Type-I codebook-based PMI reporting, using different power control offset values for multi-CRI reporting across different CSI-RS resources is not precluded.
For CJT calibration feedback reporting, we have the following proposals:
For separate triggering of Rel-19 CJTC Dd report type with Rel-18 Type-II CJT report type, the linkage of the two report types spans NR CSI reports corresponding to the same CSI report configuration.
CSI calculation based on Rel-15 Type-I MP CB based on CJTC DO reporting is not supported.

3GPP TSG RAN WG1 Meeting #120bis	R1-2502120
Wuhan, China, April 7th – 11st, 2025

Source:	Fujitsu
Title:	Remaining issues on Rel-19 CSI enhancements
Agenda item:	9.2.2
Document for:	Discussion and Decision

Conclusions
In conclusion, we have the following proposals on Rel-19 CSI enhancements.
Regarding the extension on CSI-RS ports for Rel-19 Type I SP, Proposal 1.B in RAN1#119 is supported.
For Rel-19 Type I SP on 48, 64, 128 ports, RAN1 needs to discuss whether to support NES PD adaptation and joint SD type 1+PD adaptation. The discussion should be based on the agreement on the mandatory binding of NES type 1 SD and PD adaptation in the NES agenda.
In Rel-19, regarding the linkage between CJTC Dd and Rel-18 eType-II CJT CSI report, the fix correspondence rule should be clearly defined, e.g., defined as a one-to-one mapping between TRS sets and CSI-RSs.

3GPP TSG RAN WG1 #120bis			R1-2502154
Wuhan, China, April 7th – 11th, 2025

Source: 	CMCC
Title:	Discussion on CSI enhancements
Agenda item:	9.2.2
Document for:	Discussion & Decision

Conclusions
In this contribution, we discuss CSI enhancements in MIMO, including support for up to 128 CSI-RS ports on FR1, and the following proposal is made.
Proposal 1: For the Rel-19 Type-I SP codebook refinement for 48, 64, and 128 CSI-RS ports, extend the agreed Scheme-A and Scheme-B to 16, 24, and 32 CSI-RS ports, for all applicable RI values with K=1 only, and without any further modification/enhancement of the sub-features pertinent to the Rel-19 Type-I SP design (including, e.g. the Rel-19 Type-I SP CBSR, soft scaling).
For the Rel-19 Type-I SP codebook, the support for 16, 24, and 32 ports are 3 separate UE capabilities from the support for the previously agreed number of ports (48, 64, 128 ports)

3GPP TSG-RAN WG1 Meeting #120bis	                                                  	                      R1-2502225
Wuhan, China, April 7 - 11, 2025

Agenda Item:	9.2.2
Source:	Huawei, HiSilicon
Title:	On 128 CSI-RS ports and UE reporting enhancements
Document for:	Discussion and Decision 

Conclusions
The contribution provides our considerations on 128 CSI-RS ports and UE reporting enhancements for CJT, and the observations are listed as following:
Observation 1: For multi-beam channel measurement, the CSI-RS overhead is pretty high if each analog beam is associated with a separate CSI-RS resource.  
Observation 2: The design principle of available slot offset introduced in Rel-17 SRS should be reused for the aperiodic CSI-RS resource configuration of multi-beam channel measurement.
Observation 3: Under intra-band CA scenario, per-CC independent CSI reporting may lead to spectrum efficiency degradation.

The proposals are listed as below:
Proposal 1: UE can report to support both Scheme-B RI=1-4 and Scheme-A RI=5-8, or both Scheme-A RI=1-4 and Scheme-B RI=5-8.
Proposal 2: For the Rel-19 Type-I SP codebook refinement for P=128 CSI-RS ports based on periodic CSI-RS, with Capability 2 timeline, the periodicity of CSI-RS should be greater than or equal to  slot. 
Proposal 3: For multi-beam channel measurement, transmitting less CSI-RS resources than the total number of analog beams should be considered to reduce the CSI-RS overhead.
Proposal 4: Support available slot differential offset for the aperiodic CSI-RS resource configuration of multi-beam channel measurement.
Proposal 5: For CQI/PMI/RI calculation for CJT CSI linked with DO reports, the PDSCH is assumed to be transmitted according to

Where  is the selected CSI-RS resource, k is the subcarrier index,  is the reference subcarrier,  is the subcarrier spacing and  is the DO. 

The text proposals for the draft CR are listed as below:
Text Proposal 1: For the Rel-19 Type-II codebook refinement for 48, 64, and 128 CSI-RS ports, reuse two-level group based CBSR of regular Type-II codebook, and endorse the following text proposal.

Text Proposal 2: Endorse the following text proposal to CR of TS 38.214:

Text Proposal 3: Endorse the following text proposal for the agreed draft CR of TS 38.214:

Text Proposal 4: Endorse the following text proposal for the agreed draft CR of TS 38.215:

Text Proposal 5: Endorse the following text proposal for the agreed draft CR of TS 38.214:

3GPP TSG RAN WG1 #120bis		R1-2502294
Wuhan, China, April 7th – 11th, 2025

Source:	OPPO
Title:	CSI enhancements for Rel-19 MIMO
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusion
In this contribution, we discuss potential enhancements for Rel-19 MIMO enhancement with the following proposals.
Proposal 1: For the Rel-19 Type-I MP codebook refinements for 48, 64, and 128 CSI-RS ports, the supported combinations of (Ng, N1, N2) can be derived form:

Proposal 2: For the mapping of i1,3 to (k1,k2) for 2-4 layers for Rel-19 Type-I MP codebook refinements, the mapping for Type-I SP codebook with the same (N1, N2) values can be reused. Additionally, for (N1=8, N2=1), the mapping for SP CB with (N1=6, N2=1) can be reused.
Proposal 3: The mapping from CSI-RS ports in aggregated K CSI-RS resources to port index for 48, 64, 128 ports PMI is only captured in 38.211.
Proposal 4: Extension of Rel-19 Type-I SP CB to <=32 ports is not needed.

3GPP TSG RAN WG1 #120bis	        	R1-2502313
Wuhan, China, April 7th – 11th, 2025

Agenda Item:					    9.2.2
Source:	Sony
Title:	Further discussion of CSI enhancements
Document for:	Discussion and decision

Conclusions
We made the following observations and proposals:
 For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, the UE may advantageously perform DO compensation on the Rel-18 type II CJT CSI associated with TRP(s) that are either ‘out of range’ by applying a DO value of , i.e., the maximum dynamic range. 
 For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with a joint trigger, the UE performs DO compensation on the Rel-18 type II CJT CSI associated with TRP(s) that are ‘out of range’ by applying a DO value of , i.e., the maximum dynamic range.
 For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with two separate triggers, when at least one of the N_TRP reported delay offset (DO) values in a linked CJTC Dd report is ‘out of range’, the UE performs DO compensation on the triggered Rel-18 eType-II CJT CSI associated with TRP(s) that are ‘out of range’ by applying a DO value of , i.e., the maximum dynamic range.
 The mapping of reported CJTC Dd codepoints from intervals/ranges to values when the linkage mechanism is configured can be left to the implementation.
 Proposal 4.	 For UE-specific frequency offset pre-compensation, we are, in principle, supportive Proposal 3-F, i.e., configuring a UE (via RRC signaling) to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported frequency offset (when ReportQuantity is ‘cjtc-F’), using the same mechanisms as that for UE-reported delay offset (when ReportQuantity is ‘cjtc-Dd’).
 For the Rel-19 aperiodic standalone CJT calibration reporting, support joint Dd + phase offset (PO) reporting as per Proposal 3.G.1.

3GPP TSG RAN WG1 #120bis							R1-2502357
Wuhan, China, April 7th – 11th, 2025

Agenda item:	9.2.2
Source: 	Moderator (Samsung)
Title: 	Moderator Summary#1 on Rel-19 CSI enhancements: Round 1
Document for:	Discussion and Decision

Summary: issue 3 

Table 3B LLS/SLS results: issue 3 
--
Table 3C Additional inputs: issue 3

3GPP TSG RAN WG1#120-bis			R1-2502358
Wuhan, China, April 7th – April 11th, 2025

Agenda item:	9.2.2
Source: 	Samsung
Title: 	Views on Rel-19 CSI enhancements
Document for:	Discussion and Decision

Conclusion
In this contribution, the following observations and proposals are made: 

Type-I/II

Proposal 1: 
For the Rel-19 Type-I multi-panel (MP) codebook refinement for 48, 64, and 128 CSI-RS ports, support the following (Ng, N1, N2) values:



CRI-based CSI

Proposal 2: Support to reuse the notion of ‘available slot offset’ in configuration of slot offset value, when DL/UL slots are mixed within a considered slot interval.

Proposal 3: Support the priority rules and updating of priority equation for Rel-19 CRI based CSI refinement for up to 128 ports

3GPP TSG RAN WG1 #120bis                              	                  R1-2502435
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2
Source:	Xiaomi 
Title:                     Maintenance on CSI enhancement for up to 128 ports and CJT 
Document for:	Discussion and Decision

Conclusion
In this contribution, the proposals on CSI enhancement for up to 128 ports are provided as follows.
Proposal 1: Support four orthogonal basis groups configured with CBSR, and each orthogonal basis group is configured with  - bit group-based CBSR. 
Proposal 2: The value of  and  respectively set to (4,6,1) and (4,1) could be supported.
Proposal 3: For rank=2~4, the following table could be supported for mapping of  to  and  when  for multiple panel codebook.

3GPP TSG-RAN WG1 #120bis                                      R1-2502506
Wuhan, China, Apr. 7th – 11th, 2025
Agenda Item:	9.2.2
Source: 	ETRI
Title:	Discussion on CSI enhancements for NR MIMO Phase 5
Document for:	Discussion/Decision

Conclusion
In this contribution, we have discussed CSI enhancements for NR MIMO Phase 5.
Our observations are captured below: 
Observation 1: For PO subband reporting, it is considered invalid for any of the configured NTRP CSI-RS resources to have a frequency density in a subband configured by numberofSubbandsPO that is lower than the configured density of the CSI-RS resource.
Observation 2: For PO subband reporting, configuring subbandSize to 1 PRB is inconsistent with a CSI Report setting in which any of the NTRP NZP CSI-RS resources linked to the CSI Report setting has a configured frequency density of 0.5 RE/port/PRB.
Observation 3: For PO subband reporting, always configuring PO reporting for NSB-P subbands starting from the first subband can introduce unnecessary RRC signaling overhead, particularly in scenarios with large BWPs and small subband sizes.
We propose the followings: 
Proposal 1: For the Rel-19 Type-I and Type-II codebook refinement for up to 128 CSI-RS ports, regarding the aperiodic triggering offsets of CSI-IM and NZP CSI-RS for interference measurement, consider one of the following alternatives: 
Alt. 1: An RRC-configured resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is supported with values {0, 1}.
Alt. 2: A resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is fixed to 0. (i.e., the aperiodic triggering offset of CSI-IM/NZP CSI-RS for interference measurement is identical to that for the first slot of the NZP CSI-RS resources for channel measurement in the associated set.)
Proposal 2: For both the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports and the Rel-19 Type-I and Type-II codebook refinement for up to 128 CSI-RS ports, consider replacing the phrase “relative to the resource-set-level slot offset, using the same design as Rel-19 Type-I/II codebook refinement for 48, 64, and 128 ports,” specified in the field description of additionalSlotOffset-r19, with “relative to the slot offset configured by aperiodicTriggeringOffset in NZP-CSI-RS-ResourceSet.”
Proposal 3: For both the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports and the Rel-19 Type-I and Type-II codebook refinement for up to 128 CSI-RS ports, we suggest modifying the field description of aperiodicTriggeringOffset as follows. After the existing phrase: “Offset X between the slot containing the DCI that triggers a set of aperiodic NZP CSI-RS resources and the slot in which the CSI-RS resource set is transmitted.” add the following clarification: “Otherwise, Offset X between the slot containing the DCI that triggers a set of aperiodic NZP CSI-RS resources and the earliest slot in which the CSI-RS resource set can be transmitted, where the associated one of additionalOneSlotOffset, additionalOneSlotOffsetDopp, or additionalSlotOffset-r19, if applicable, represents the additional slot offset relative to Offset X.”
Proposal 4: For both the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports and the Rel-19 Type-I and Type-II codebook refinement for up to 128 CSI-RS ports, regarding the legacy equations specifying the slot in which the aperiodic CSI-RS is transmitted, consider explicitly capturing the addition of a resource-level slot offset.
Proposal 5: For the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports, regarding the aperiodic triggering offset of CSI-IM in the CSI-IM resource set, consider one of the following alternatives: 
Alt. 1: For each CSI-IM resource, an RRC-configured resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is supported with values {0, 1, 2, 3, 4, 5, 6, 7}.
Alt. 2: For each CSI-IM resource, an RRC-configured resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is supported with values {0, 1, 2, 3, 4, 5, 6, 7} under the restriction that the resource-level slot offset is no greater than that of the associated NZP CSI-RS for channel measurement.
Alt. 3: For each CSI-IM resource, the same resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) as that of the associated NZP CSI-RS for channel measurement is applied. (i.e., The aperiodic triggering offset of the CSI-IM is identical to that of the associated NZP CSI-RS for channel measurement, as defined in the legacy rule.)
Proposal 6: For the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports, regarding the aperiodic triggering offset of NZP CSI-RS for interference measurement, consider one of the following alternatives: 
Alt. 1: An RRC-configured resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is supported with values {0, 1, 2, 3, 4, 5, 6, 7}.
Alt. 2: An RRC-configured resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is supported with values {0, 1, 2, 3, 4, 5, 6, 7} under the restriction that the resource-level slot offset is no greater than the maximum of the resource-level slot offsets of NZP CSI-RS resources in the associated resource set for channel measurement.
Alt. 3: The resource-level slot offset (relative to the resource-set-level slot offset configured for the associated NZP CSI-RS for channel measurement) is set to the minimum of the resource-level slot offsets of NZP CSI-RS resources in the associated associated resource set for channel measurement.
Alt. 4: The resource-level slot offset (relative to the resource-set-level slot offset configured for the associated CSI-RS for channel measurement) is fixed to 0, indicating that configuration of resource-level slot offset is not required.
Proposal 7: For a UE configured with a total of PSRS=6 or 8 ports across ≥1 SRS resources for antenna switching intended for xT6R or xT8R, respectively, when SRS port grouping is configured, regarding the reception of PDSCH with single-CW, receiving single-CW using both SRS port groups 0 and 1 is subject to UE capability.
Proposal 8: For a UE configured with a total of PSRS=6 or 8 ports across ≥1 SRS resources for antenna switching intended for xT6R or xT8R, respectively, when SRS port grouping is configured, regarding the reception of PDSCH with single-CW, the UE is expected to receive single-CW using both SRS port groups 0 and 1 if the UE is capable of receiving single-CW using both SRS port groups 0 and 1. The UE is expected to receive single-CW using SRS port group 0 otherwise.
Proposal 9: For PO subband reporting, a UE is not expected to be configured with numberofSubbandsPO which contains a subband where any of the NTRP CSI-RS resources linked to the CSI Report setting has the frequency density of a CSI-RS port per PRB in the subband less than the configured density of the CSI-RS resource.
Proposal 10: For PO subband reporting, a UE is not expected to be configured with subbandSize set to 1 PRB when any of the NTRP NZP CSI-RS resources linked to the CSI Report setting has a configured frequency density of 0.5 RE/port/PRB.
Proposal 11: For PO subband reporting, introduce a starting subband index as a higher layer parameter in the CSI Report setting.
Proposal 12: When linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured, the UE is not expected to be configured with restrictedCMR-Selection for the Rel-18 eType-II CJT CSI report.

3GPP TSG RAN WG1 Meeting #120bis		R1- 2502525
Wuhan, China, April 7th – 11th, 2025

Agenda item:       9.2.2
Source: 	Nokia
Title: 	CSI enhancement for NR MIMO Phase 5
Document for:     Discussion and Decision
1	

Conclusion
Hereafter is a summary of observations and proposals for Type-I extension for up to 128 ports

Observation 1	In Rel-19, the port mapping methods are used to map the elements of a PMI vector to the correct CSI-RS resources and antenna ports within each resource, for codebooks defined on >32 ports. Rel-19 does not support physical CSI-RS antenna port mapping to antenna port indices beyond 3031.
Observation 2	In Rel-19, the port mapping methods depend on codebook-specific parameters , so it should be captured in TS38.214.
Observation 3	For Rel-19 eType-II refinement, the configured CBSR bit string of length  bits applies to any orthogonal group of DFT beams of size  selected by the UE and indicated by .
Observation 4	In Rel-19 Type-I MP, the current value range of  is such that, for codebook layouts with , for rank 3,4, the codepoint  corresponds to the first selected beam, which is not a valid selection for the second beam when rank > 2. Besides, two codepoints correspond to the same SD basis vector:  and 2 both indicate a second beam that is identical to the first beam for , and indicate a second beam with offsets  with respect to the first beam for .

Proposal 1	The port mapping description is not needed in Rel-19 TS38.211 and can be removed, because physical antenna port indexing in Rel-19 does not extend beyond 32 port and Rel-19 port mapping depends on codebook parameter definition .
Proposal 2	For Refined Type-I MP, regarding the values of  for the selection of the second beam, introduce the following combinations for .

Proposal 3	For Refined Type-I SP, regarding soft scaling configuration, introduce a second the RRC parameter typeI-softScalingRank2-r19, such that, if only the bitmap parameter typeI-softScalingRank1-2-r19 is configured, rank1 only soft scaling is enabled, if both typeI-softScalingRank1-2-r19 and typeI-softScalingRank2-r19 are configured, rank1&2 soft scaling is enabled.

3GPP TSG RAN WG1 #120bis	R1-2502551
Wuhan, China, 07 – 11 April 2025 


Agenda item:		9.2.2
Source:	Rakuten
Title:	Discussion on the Remaining Issues of CSI Enhancement
Document for:		Discussion and Decision

Conclusion and Proposals
Based on the discussion above, we conclude this contribution with the following observations and proposals:.
Observation 1: Without a clear definition of the value within a reporting interval, there could be a mismatch between the DO value used for compensating CSI CJT at the UE and the DO value used by the NW to compensate DL signals and channels.
Proposal 1: Accept Proposal 1.E in the RAN1 #120’s offline discussions, excluding the FFS.
Proposal 2: Supporting AD = {0.1CP, 0.2CP} as dynamic range for delay offset reporting Dn,offset is not necessary.
Proposal 3: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured, if reporting a DO value Dn,offset that falls into the interval , the NW uses  as the delay offset value for compensating the associated CJT CSI reporting.
Proposal 4: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured, if reporting a DO value Dn,offset that represents ‘out of range’, at least for joint triggering, the UE uses  as the delay offset value for compensating the associated CJT CSI reporting.

3GPP TSG RAN WG1 #120bis			R1-2502599
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2

Source:	Apple Inc.
Title:	Views on R19 MIMO CSI enhancement
Document for:	Discussion/Decision

Conclusion
In contribution, we provide our views on the CSI enhancement in the following 2 areas for Rel-18 MIMO evolution. 
CSI enhancement for up to 128 CSI-RS ports 
CSI enhancement for time and frequency/phase offset measurement and report 
We have the following proposals. 
CSI enhancement for up to 128 CSI-RS ports 
Proposal 1.1, For the Rel-19 CRI-based CSI refinement for up to 128 CSI-RS ports, consider the following restrictions when more than 1 CSI-RS resource can be configured as CMR
All CSI-RS resources configured for the same CSI report should have the same powerControlOffset
All CSI-RS resources configured for the same CSI report should have the same powerControlOffsetSS

CSI enhancement for time and frequency/phase offset measurement and report
Proposal 2.1, For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with a joint trigger, the processing timeline Z, Z’ is relaxed by Y symbols which is reported as UE capability differently for different SCS

Proposal 2.2, For the Rel-19 aperiodic standalone CJT calibration reporting, when ReportQuantity is ‘cjtc-P’ (DL/UL phase offset), for subband based phase offset report
NW can configure a subset of the subbands via RRC by bitmap 
The maximum number of subband can be subject to UE capability report 
UE is not required to measure the subband that is not configured by the NW for phase offset report

3GPP TSG RAN WG1 #120bis	R1-2502666
Wuhan, China, April 7th – 11th, 2025
Source:	Sharp
Title:	CSI enhancements
Agenda Item:	9.2.2
Document for:	Discussion and Decision

Conclusion
In this contribution, we have the following proposal:
Proposal 1: When linking CJTC and CJT PMI reports is configured, the lower limit value  of the reported DO  should be used for the DO compensation.
Proposal 2: When linking CJTC and CJT PMI reports is configured, and the reported DO value is compensated, the UE should assume the following PDSCH signal to calculate CQI [3]:

3GPP TSG-RAN WG1 Meeting #120bis                                                                   R1-2502688
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2
Source:	HONOR
Title:	Discussion on CSI enhancements
Document for:	Discussion and Decision

Conclusions
In this paper, some preliminary views on CSI enhancements are discussed. The following proposals are made:
Proposal 1: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, if UE performs PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported delay offset in a joint trigger, UE is not expected to be configured with restrictedCMR-Selection for Rel-18 eType-II CJT CSI report.
Proposal 2: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, if UE performs PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported delay offset in a joint trigger, when at least one of the reported delay offset (DO) values in a linked CJTC Dd report is ‘out of range’, the UE does not perform DO compensation on the triggered Rel-18 eType-II CJT CSI associated with TRP(s) that are ‘out of range’.
Proposal 3：When the two configured CSI reports are jointly triggered, UE assumes a single CSI report is required to report including both UCI associated with the CJTC Dd report and UCI associated with the Rel-18 eType-II CJT CSI. The priority rule of the single CSI report is determined according to CSI report configuration associated with Rel-18 eType-II CJT CSI.
Proposal 4: When jointly triggered, the time interval between reception time of CMR/IMR and the PUSCH to carry the CSI report should be larger than Z', where CMR/IMR should include all the CSI-RS/CSI-IM associated with the two configured CSI-ReportConfigs.
Proposal 5: Adopt the following text proposal in TS 38.214:
Proposal 6: Adopt the following text proposal in TS 38.214:

3GPP TSG RAN WG1 #120bis   	         	                                          R1-2502730
Wuhan, China, April 7th – 11th, 2025
Agenda Item:	9.2.2
Source:	China Unicom
Title:	Discussion on  Beamforming Template for CSI Enhancement
Document for:	Discussion

Conclusion
Proposal 1: Beamforming templates and CSI need to be categorized and added according to the scenario types.
Proposal 2: Beam templatel and CSI need to be divided and added according to the business distribution.
Proposal 3: The BBU needs to add UE requirement scenarios and business distribution situation collection and calculation units.

3GPP TSG RAN WG1 #120bis			R1-2502760
Wuhan, China, April 7th – 11st, 2025

Source:	NTT DOCOMO, INC., NTT CORPORATION
Title:	Discussion on CSI enhancements
Agenda Item:	9.2.2
Document for: 	Discussion and Decision

Conclusion
In this contribution, we discussed CSI enhancements for up to 128 ports and non-ideal CJT deployment. Based on the discussion, we made following proposals.
Type I codebook refinement: 
Proposal 2-1
When port-subsetIndicator (Rel-18 SD NES Type-1) is configured for 48, 64, and 128 CSI-RS ports for Rel-19 Type-I SP codebook, the following case should be supported: the actual indicated port number (with value of 1 in bitmap of port-subsetIndicator) is configured to be <= 32 ports without separate UE capability. 
In this case, a predefined codebook type should be applied to  <= 32 ports, e.g., Rel-15 SP codebook.
In this case, new mapping of i1,3 to (k1,k2) could be considered.
Proposal 2-2
Regarding the extension of Rel-19 Type-I SP codebook to legacy port number, support FL Proposal except the FFS.
Proposal 2-3
Regarding CBSR for Rel-19 Type-II codebook refinement, two-level CBSR configuration design is maintained, and -bit group-based CBSR is for second-level indication of B2 only.


CSI reporting enhancements for non-ideal CJT deployment: 
Proposal 3-1
For associating the L1-RSRP to the ‘cjtc-Dd’ report for TRP selection, we support Proposal 3.G.2.
Also, for joint reporting L1-RSRP in addition to cjtc-Dd, new reportQuantity such as ‘CSI-RS-RSRP-cjtcDd’ should be considered.
Proposal 3.G.2: For the Rel-19 aperiodic standalone CJT calibration reporting, support reporting, as a new ReportQuantity in one CSI reporting instance and one CSI Reporting Setting, L1-RSRPs associated with the configured NTRP CSI-RS resources and the following CJT calibration report type: 
ReportQuantity is ‘cjtc-Dd’ (delay offset)
The legacy L1-RSRP is fully reused, where the L1-RSRP associated with nref is the reference for the other (NTRP-1) differential L1-RSRP(s) 
The NTRP CRI(s) are not reported

3GPP TSG-RAN WG1 Meeting #120bis	R1-2502811 
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2
Source:	Ericsson
Title:	Remaining issues on CSI enhancements for large antenna arrays and CJT 
Document for:	Discussion, Decision

1	

Conclusion 

Proposal 1:  For the Rel-19 Type-I SP codebook refinement for 48, 64, and 128 CSI-RS ports, extend the agreed Scheme-A and Scheme-B to 16, 24, and 32 CSI-RS ports, for all applicable RI values with K=1 only.

Proposal 2:  Retain the CSI-RS port indexing for 48, 64, and 128 ports in draft CR for 38.211 and remove texts related to codebook port indexing from draft CR for 38.214.  Agree TP1 proposed below:

--------------------------------------------------  Start of TP #1 for 38.214  ------------------------------------------------------
5.2.1.4.2	Report quantity configurations

-	the higher layer bitmap parameter portSubsetIndicator-r19, of length 48, 64 or 128 bits, which contains the bit sequence , where  is the MSB and  is the LSB, bit  corresponds to the codebook CSI-RS antenna port  after CSI-RS resource aggregation, in order of increasing codebook CSI-RS antenna port index as specified in Clause 7.4.1.5 of [4, TS 38.211] , and codebook port  corresponds to antenna port , with index , of CSI-RS resource , according to the mapping configured by higher layer parameter portMappingMethod, for the values of  and  configured by the higher layer parameter n1-n2-typeI-r19, as described in Clause 5.2.2.2.1a, where  is the number of CSI-RS resources configured in the resource set for channel measurement and  is the number of ports per resource, configured by higher layer parameter nrofPorts. A bit value 0 in portSubsetIndicator-r19 indicates that the corresponding antenna port is disabled for the sub-configuration, whereas bit value 1 indicates that the antenna port is enabled and belongs to the antenna port subset for the sub-configuration. For the derivation of PMI, codebook ports corresponding to all bits with value of 1 in portSubsetIndicator-r19 are mapped to consecutive codebook ports in increasing order of the bit position in portSubsetIndicator-r19.


5.2.2.2.1a	Refined Type I Single-Panel Codebook

-	The port mapping method between the antenna port , with index , of CSI-RS resource , and the codebook port index, , obtained by aggregating  CSI-RS resources, as described in Clause 5.2.1.4.1, is configured with the higher layer parameter portMappingMethod. Let the port index  within a CSI-RS resource  correspond to the intermediate indices , such that , where , , and  is the polarization index, and where  are defined such that  if portMappingMethod is set to 'method1', or  if portMappingMethod is set to 'method2'. The codebook port index, , is obtained from the indices  as follows.
-	If portMappingMethod is set to 'method1',

-	If portMappingMethod is set to 'method2',


5.2.2.2.2a	Refined Type I Multi-Panel Codebook

-	The port mapping method between the antenna port , with index , of CSI-RS resource , and the codebook port index, , obtained by aggregating  CSI-RS resources, as described in Clause 5.2.1.4.1, is obtained as follows. Let the port index  within a CSI-RS resource  correspond to the intermediate indices , such that , where , , and  is the polarization index. The codebook port index, , is given by


5.2.2.2.5a	Refined eType II Codebook

-	The port mapping method between the antenna port , of index , of CSI-RS resource , and the codebook port index, , obtained by aggregating  CSI-RS resources, as described in Clause 5.2.1.4.1, is configured with the higher layer parameter portMappingMethod and defined as in Clause 5.2.2.2.1a.

5.2.2.2.9a	Refined FeType II Port Selection Codebook

-	The port mapping method between the antenna port , of index , of CSI-RS resource , and the codebook port index, , obtained by aggregating  CSI-RS resources, as described in Clause 5.2.1.4.1, is configured with the higher layer parameter portMappingMethod and defined as in Clause 5.2.2.2.1a.

5.2.2.2.11a	Refined eType II Codebook for predicted PMI

-	The port mapping method between the antenna port , of index , of CSI-RS resource , and the codebook port index, , obtained by aggregating  CSI-RS resources, as described in Clause 5.2.1.4.1, is configured with the higher layer parameter portMappingMethod and defined as in Clause 5.2.2.2.1a.

-	The PDSCH transmission scheme where the UE may assume that PDSCH transmission would be performed with up to 8 transmission layers as defined in Clause 7.3.1.4 of [4, TS 38.211]. For CQI calculation, the UE should assume that PDSCH signals on antenna ports in the set [1000,…, 1000+ν-1] for ν layers would result in signals equivalent to corresponding symbols transmitted on antenna ports [3000,…, 3000+P-1], as given by
	
	where  is a vector of PDSCH symbols from the layer mapping defined in Clause 7.3.1.4 of [4, TS 38.211],  is the number of CSI-RS ports. If only one CSI-RS port is configured, W(i) is 1. If the higher layer parameter reportQuantity in CSI-ReportConfig for which the CQI is reported is set to either 'cri-RI-PMI-CQI' or 'cri-RI-LI-PMI-CQI', W(i) is the precoding matrix corresponding to the reported PMI applicable to x(i). If the higher layer parameter reportQuantity in CSI-ReportConfig for which the CQI is reported is set to 'cri-RI-CQI', W(i) is the precoding matrix corresponding to the procedure described in Clause 5.2.1.4.2. If the higher layer parameter reportQuantity in CSI-ReportConfig for which the CQI is reported is set to 'cri-RI-i1-CQI', W(i) is the precoding matrix corresponding to the reported i1 according to the procedure described in Clause 5.2.1.4.2. The corresponding PDSCH signals transmitted on antenna ports [3000,…,3000 + P - 1] would have a ratio of EPRE to CSI-RS EPRE equal to the ratio given in Clause 5.2.2.3.1
-	For a UE configured with 48, 64 and 128 antenna ports, obtained by aggregating  CSI-RS resources for channel measurement, for CQI calculation, the UE should assume that PDSCH signals on antenna ports in the set , for  layers, would result in signals equivalent to corresponding symbols transmitted on antenna ports , with index , of the respective CSI-RS resource  with , corresponding to the codebook ports  in order of increasing codebook port index, according to the mapping described in Clause 5.2.2.2.1a for codebookType set to 'typeI-SinglePanel-r19', 'eTypeII-r19', 'typeII-FePortSelection-r19' or 'typeII-Doppler-r19' and in Clause 5.2.2.2.2a for codebookType set 'typeI-MultiPanel-r19', such that


---------------------------------------------------  End of TP #1 for 38.214  -----------------------------------------------------


Proposal 3:  For spatial beam indication of refined eTypeII codebook with 48, 64, and 128 ports in draft CR for 38.214 agree TP2 proposed below:

--------------------------------------------------  Start of TP #2 for 38.214  ------------------------------------------------------
5.2.2.2.5a	Refined eType II Codebook
For 48, 64 and 128 antenna ports, obtained by aggregating  CSI-RS resources for channel measurement, and the UE configured with higher layer parameter codebookType set to 'eTypeII-r19'

The codebook is defined as in Clause 5.2.2.2.5.  vectors, , are identified by the indices , , indicated by , , obtained as in 5.2.2.2.3, where the values of  are given in Table 5.2.2.2.5-4 and and Table 5.2.2.2.1a-5.
The bitmap parameter typeII-CBSR-r19 forms the bit sequence , where  is the LSB and  is the MSB and the number of bits is given by , where the values  are configured by the higher layer parameters valueOfX1-typeII-CBSR-r19 and valueOfX2-typeII-CBSR-r19, respectively. The supported combinations of  for a given combination of  are given in Table. A bit value of zero for bit  indicates that PMI reporting is not allowed to correspond to any precoder associated with vector group , , , given by
---------------------------------------------------  End of TP #2 for 38.214  -----------------------------------------------------

3GPP TSG RAN WG1 #120bis 	R1-2502834
Wuhan, China, April 7 – 11, 2025

Agenda item:	9.2.2
Source: 	Qualcomm Incorporated
Title: 	CSI enhancements for >32 ports and UE-assisted CJT
Document for:	Discussion/Decision

Conclusion
In this contribution, we discuss CSI enhancements for up to 128 ports, and UE-assisted CJT with non-ideal synchronization. Based on the observation:
Observation 1: For SRS port grouping, for rank5-to-8 PDSCH and rank5-to-8 CSI-RS ports of non-PMI report, ZF should be assumed for precoding.
Observation 2: For SRS port grouping, for rank1-to-4 PDSCH and rank1-to-4 CSI-RS ports of non-PMI report, ZF should not be assumed for precoding, thus rank1-to-4 precoding is different from partial layers of rank5-to-8.
Observation 3: For CJT PO report with inter-TRP TAE, direct report of wideband/initial PO + delay/TAE has smaller report overhead than subband PO.
Observation 4: For MRT-precoded CSI-RSs, Opt1 (wideband/initial PO + delay/TAE) outperforms Opt2 (subband PO) for the case of all 16 subbands (which is with massive UCI overhead).
Observation 5: For non-MRT-precoded CSI-RS), the benefit of Opt1 (wideband/initial PO + delay/TAE) over Opt2 (subband PO) is reduced.
We propose:
Proposal 1: For Rel-19 Type-I/II CSI with K>1 aperiodic CSI-RS resources, if the K CSI-RS resources are distributed in two consecutive slots, the triggering offset of the aperiodic CSI-IM follows the first slot or the second slot.
Proposal 2: For multi-CRI report with resource-specific aperiodic triggering offset, CSI-IM follows the triggering offset of its paired CMR.
Proposal 3: For SRS port grouping, for single-CW DL reception (rank1-to-4), support RRC configuration to indicate from the following two: 1) All Rx of both SRS port groups; 2) SRS port group#0.
Proposal 4: For SRS port grouping, for single-CW DL reception (rank1-to-4), it depends on UE capabilities for reception with all Rx of both SRS port groups.
Proposal 5: For Rel-19 UE-assisted CJT, support a joint report of wideband/initial PO + TAE by UCI multiplexing of PO + DO.
Proposal 6: For Rel-19 UE-assisted CJT, for PO report, when AP-SRS is configured linked to NTRP AP-CSI-RSs, also support occasion-level linkage between the latest SRS occasion before the NTRP CSI-RS occasions.
Proposal 7: For Rel-19 UE-assisted CJT, for PO report, the NTRP CSI-RSs are located within 1 slot.
Proposal 8: For Rel-19 UE-assisted CJT, for PO report, after the CSI report (re)configuration, serving cell activation, BWP change, UE reports an “invalid” codepoint if no available SRS occasion of the linked SRS resource is transmitted before the NTRP CSI-RS occasions no later than the CSI reference resource.



Appendix 1: Inter-TRP Rx-Tx TAE impact to DL and UL channel measure misalignment




Appendix 2: Link simulation setup for CJT mTRP channels with single-/multi-UE, based on CDL-C
Generation of multiple UEs each served by multiple TRPs:
For multiple UEs in relation to a same TRP, UE-specific random AoD/ZoD offsets added to all {TRP antenna, UE antenna} pairs associated with each UE;
For multiple TRPs (2 TRPs) in relation to a same UE, TRP-specific random AoA/ZoA offsets added to all {TRP antenna, UE antenna} pairs associated with each TRP.
Other main parameters can be found from RAN1#116 agreement:

3GPP TSG RAN WG1 Meeting #120-bis	                                                                 R1-2502904           
Wuhan, China, April 7th – 11st, 2025   

Agenda Item:  	9.2.2
Source:             	Fraunhofer IIS, Fraunhofer HHI
Title:                  	CSI enhancements for Rel. 19 MIMO
Document for: 		Decision			

Conclusion
Observation: Due to the wide beamwidth of the DFT beams for smaller number of ports, using Rel. 19 Type-I codebooks may not result in performance improvement compared to Rel. 15 Type-I codebook.
Proposal: Rel. 19 Type-I codebook shall not be supported for less than 32 ports. 

3GPP TSG RAN WG1 #120bis	R1-2502932
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.2.2
Source:	KDDI
Title:	Discussion on CSI enhancements for NR MIMO Phase 5
Document for:	Discussion and decision

Conclusion
In this contribution, we discussed remaining issues that should be considered in this work regarding UE reporting enhancement for CJT deployments under non-ideal synchronization and backhaul. Based on the discussion above, we made the following proposals.
Proposal 1: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, even when linking CJTC Dd and Rel-18 eType-II CJT CSI reports, the UE can be configured with restrictedCMR-Selection for Rel-18 eType-II CJT CSI reports.
Proposal 2: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with a joint trigger, the UE does not perform DO compensation on the Rel-18 eType II CJT CSI associated with TRP(s) that are ‘out of range’.
Proposal 3: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, when linking CJTC Dd and Rel-18 eType-II CJT CSI reports is configured with two separate triggers, when at least one of the NTRP reported delay offset (DO) values in a linked CJTC Dd report is ‘out of range’, the UE does not perform DO compensation on the triggered Rel-18 eType-II CJT CSI associated with TRP(s) that are ‘out of range’
Proposal 4: For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, configuring a UE (via RRC signaling) to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported frequency offset (when ReportQuantity is ‘cjtc-F’) is not needed.

3GPP TSG RAN WG1 #120bis							R1-2503011
Wuhan, China, April 7th – 11th, 2025

Agenda item:	9.2.2
Source: 	Moderator (Samsung)
Title: 	Moderator Summary#2 on Rel-19 CSI enhancements: Round 2
Document for:	Discussion and Decision

Summary: issue 3 

Table 3B LLS/SLS results: issue 3 
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Table 3C Additional inputs: issue 3

TDoc file unavailable

3GPP TSG RAN WG1 #120bis							R1-2503013
Wuhan, China, April 7th – 11th, 2025

Agenda item:	9.2.2
Source: 	Moderator (Samsung)
Title: 	Moderator Summary for 1st offline on Rel-19 CSI enhancements
Document for:	Discussion and Decision

Summary of proposals 

Issue 1 (WID objective 2a and 2b): Type-I and Type-II codebook refinement for up to 128 CSI-RS ports











Issue 2 (WID objective 2c): CRI-based CSI for hybrid beamforming (HBF)



Issue 3 (WID objective 3): CJT calibration reporting for non-ideal synchronization and backhaul

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