3GPP TSG RAN WG1 Meeting #120bis 																																										R1-2501732
Wuhan, China, April 7th – 11th, 2025

Agenda Item: 9.15.2
Source: MediaTek Inc.
Title: 	UE features for NR MIMO Phase 5
Document for: Discussion and Decision

Conclusion
Based on the discussion, we made the following proposals:
Enhancements for UE-initiated/event-driven beam management
Proposal 1: Support FG 59-1-1 with the following changes:

Proposal 2: Support FG 59-1-2 with the following changes:

Proposal 3: Support FG 59-1-4 with the following changes:

Proposal 4: Support FG 59-1-5 with the following changes:

Proposal 5: Introduce the following new FG according to RAN1 agreement: 

Enhancement for asymmetric DL sTRP/UL mTRP scenarios
Proposal 6: Introduce separate FG 59-4-1c PL offset for Type 1 PHR calculation as follows:

Proposal 7: FG23-1-1 should be the prerequisite FG for FG59-4-3.

Proposal 8: FG59-4-4a and FG59-4-4b should be the prerequisite FG for FG59-4-5.

Proposal 9: FG59-4-1a, FG59-4-1b, FG59-4-2a and FG59-4-2b should be the prerequisite FG for FG59-4-6.

Proposal 10: Support the following modifications for FG 59-4-8, FG 59-4-9a, FG 59-4-9b:

3GPP TSG RAN WG1 #120bis		R1-2501785
Wuhan, China, April 7th – 11th, 2025

Source:	ZTE Corporation, Sanechips
Title:	Discussion on UE features for NR MIMO Phase 5
Agenda Item:	9.15.2
Document for:	Discussion and Decision

Conclusion
In this contribution, we provide our views on Rel-19 UE features for each of sub-agendas for NR MIMO evolution. The detailed proposals can be found in the corresponding sections. 

3GPP TSG RAN WG1 #120bis			R1-2501830
Wuhan, China, April 7th – 11th, 2025

Source: 	vivo
Title:	Discussion on UE features for NR MIMO Phase 5
Agenda Item:	9.15.2
Document for:	Discussion and Decision

Conclusion
In this contribution we provide updates on UE features for NR MIMO Phase 5 based on the FGs provided in [2].
Adopt the updates in section 2.

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3GPP TSG RAN WG1 #120bis	R1-2502134
Wuhan, China 7 – 11 April 2025

Agenda item:		9.15.2
Source:	Nokia
Title:	Views on NR MIMO Phase 5 UE features
Document for:		Discussion and Decision

Conclusion
In this contribution, we presented our views, suggestions, and proposals on UE features for NR MIMO Phase 5, and we have made the following proposals:
Proposal 1: Adopt the proposed changes and new FGs in Table 1 to UE-initiated/event-driven beam management
Proposal 2: Adopt the proposed changes and new FGs in Table 2 to CSI support for up to 128 CSI-RS ports.
Proposal 3: Adopt the proposed changes in Table 3 for CSI -Extension of CRI(s)-based CSI reporting for hybrid beamforming.
Proposal 4: Adopt the proposed changes in Table 4 to enhancements for CJT deployments under non-ideal synchronization and backhaul.
Proposal 5: Adopt the proposed changes in Table 5 and confirm the yellow highlighted text to enhancement for other rel 19 CSI issues
Proposal 6: Adopt the proposed changes in Table 6 to UL 3TX enhancements.
Proposal 7: Adopt the proposed changes in Table 7 for Asymmetric DL sTRP UL mTRP scenarios
 

3GPP TSG RAN WG1 #120bis	                   	                                     R1-2502179
Wuhan, China, April 7th – 11th, 2025

Source: 	CMCC
Title:	Discussion on UE features for NR MIMO Phase 5
Agenda item:	9.15.2
Document for:	Discussion & Decision

Conclusions
In this contribution, we discuss Rel-19 UE features for NR MIMO evolution, and the following proposals are made.
Proposal 1: All the feature of UE-initiated/event-driven beam management should be supported for both FR1 and FR2.
Proposal 2: Take the following modification (in red) of Rel-19 3-antenna-port codebook-based transmissions:
Proposal 3: Take the following modification (in red) for the feature of Rel-19 asymmetric DL sTRP/UL mTRP scenarios:

3GPP TSG-RAN WG1 Meeting #120bis																										R1-2502228
Wuhan, China, April 7 – 11, 2025

Agenda Item:	9.15.2
Source:	Huawei, HiSilicon
Title:	UE features for NR MIMO Phase 5
Document for:	Discussion and Decision

Conclusions
This contribution presents our views on Rel-19 UE features for NR MIMO evolution, which can be found in above for detailed comments and suggestions. Further discussion and consolidation in RAN1 are required. 

3GPP TSG RAN WG1 #120bis									 R1-2502297
Wuhan, China, April 7th – 11th, 2025
	 							    		

Source:	OPPO
Title:	UE features for NR MIMO Phase 5
Agenda Item:	9.15.2
Document for:	Discussion and Decision

Conclusion
In this contribution, we discuss the potential UE features for Rel-19 MIMO with the following proposals:
Proposal 1: The following UE features shall be supported for UEI beam reporting:

Proposal 2: The following UE features can be supported for up to 128 ports codebook enhancement:



Proposal 3: The following UE features can be introduced for CJT calibration (CJTC) reporting

Proposal 4: The following UE feature can be supported for SRS port grouping:

Proposal 5: The following UE features can be supported for 3Tx uplink transmission:

3GPP TSG RAN WG1 #120bis		                                    R1-2502392
Wuhan, China, April 7th – 11th, 2025 
Agenda item:		9.15.2
Source:			Samsung
Title:			UE features for NR MIMO Phase 5
Document for:		Discussion and decision

Conclusion





In this contribution, the following observation and proposals are given:

Proposal 1. Clarify in 59-1-1 (highlighted in red below, same applies to 59-1-4 and 59-1-5) that an SSB (as the current beam or a new beam RS) can be an intra-cell/inter-cell SSB such that the SSB can be associated with the serving cell PCI or a PCI other than the serving cell PCI.

Proposal 2. Remove component 2 from 59-1-2.

Proposal 3. Add the following two rows related to Mode-B for Event-1 and Event-7, respectively


Proposal 4. Support FR2-only for the column of “Need of FR1/FR2 differentiation” for each of the rows.

Proposal 5.

Proposal 6:  Support the following value of  in the FG 59-2-3-10.


Proposal 7. Support the following list of UE capabilities for Rel-19 UL 3TX.



Proposal 8. Support to keep FG 59-4-8 as is, and delete FFS in the 2nd last column.

3GPP TSG RAN WG1 #120bis                                                     R1-2502460
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.2
Source:	Xiaomi
Title:	Discussion on UE features for NR MIMO Phase 5
Document for:	Decision

Conclusion
Based on the discussion, we propose the FGs need to be supported in above sections.

3GPP TSG RAN WG1 #120bis																			R1-2502640
Wuhan, China, April 7th – 11th, 2025

Agenda item:	9.15.2
Source: 	Apple Inc.
Title: 	Views on UE features for NR MIMO Phase 5
Document for:	Discussion/Decision

1. Views on UE features for Rel-19 NR MIMO Phase 5
In this contribution, we present our high level views on UE features for Rel-19 NR MIMO Phase 5 based on the endorsed initial feature list in R1-2501397 from RAN1#120 with track change on. At high level, the FGs are organized in the following way to handle different objectives/agendas in NR Rel-19 MIMO Phase 5. 
FG59-1x covers the enhancement for UE-initiated/event driven beam management 
FG59-2x covers the CSI enhancement
FG59-3x covers the 3Tx UL operation 
FG59-4x covers the enhancement for asymmetric DL sTRP/UL mTRP scenarios 

Enhancements for UE-initiated/event-driven beam management 

CSI enhancements




















































3Tx UL operation 









Enhancement for asymmetric DL sTRP/UL mTRP scenarios

2. Reference
[1] R1-2501397, Initial RAN1 UE features list for Rel-19 NR after RAN1 #120, 3GPP TSG RAN WG1 #120, Athens, Greece, February 17th – 21st, 2025

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3GPP TSG RAN WG1 #120bis                                   					       												                           R1-2502739
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.2
Source:	Moderator (AT&T)
Title:	Summary of UE features for NR MIMO Phase 5
Document for:	Discussion/Decision

Conclusion
Agreements reached during RAN1 #120bis as part of this agenda item are summarized in [ ].  

3GPP TSG RAN WG1 #120bis																		R1-2502786
Wuhan, China, April 7th – 11st, 2025

Source:	NTT DOCOMO, INC.
Title:	Discussion on MIMO UE features
Agenda Item:	9.15.2
Document for: 	Discussion and Decision

Summary
In this contribution, we discussed UE features for Rel-19 MIMO. Our views are provided in each session above.

3GPP TSG-RAN WG1 Meeting #120bis	Tdoc R1-2502810
Wuhan, China, April 7th – 11th , 2025
Agenda Item:	9.15.2
Source:	Ericsson
Title:	UE features for NR MIMO Phase 5
Document for:	Discussion, Decision

Conclusion
In this contribution we provided our views on CSI enhancements and 3 Tx UE features for Rel-19 NR MIMO. 
We made the following observations: 
Observation 1	There does not seem to be a benefit to reduce the maximum number of SRS resources for non-codebook based operation below the 4 supported in Rel-15. Supporting a maximum of 3 resources would instead limit the potential for diversity gain, and be less consstent with the principle of allowing a maximum layer capability that is less than the number of SRS resources.
Observation 2	Given the smaller set of scenarios where simultaneous transmission can be beneficial as compared to non-simultaneous transmission, it seems more important to support maxNumberSRS-ResourcePerSet = 4 than to support 4 simultaneously transmitted SRS resources.
Observation 3	Based on the discussion regarding the S-TRP non-codebook case and to maintain the consistency between S-TRP and M-TRP non-codebook schemes, the supported number of SRS resources in one SRS resource set should include the value of 4 in Component 4 of FG 59-3-4a and 59-3-5a.
Observation 4	Although agreed, the note does not belong in FG 59-3-4, 59-3-4a, 59-3-5 and 59-3-5a and should therefore be revisited and further discussed.
Observation 5	Component 3 of FG 59-3-2, which indicates the maximum number of simultaneous transmitted SRS resources in one symbol, appears to be a typo and is not required since this capability is normally associated with non-codebook, rather than codebook based opertion.
Observation 7	Since the agreement reached in RAN#106 applies only to the 3T3R antenna switching feature, the 3T6R capability should be considered as a new feature for UEs reporting 3Tx capability. Therefore, in line with Rel-17, a set of antenna switching capabilities {t1r1, t2r2, t1r2, t3r3, t2r4, t1r4, t2r6, t1r6, t3r6, t1r8, t2r8} should be introduced for Component 1 of FG 59-3-3. The UE can report a supported combination from this set to the network, which can then configure one of the reported antenna switching options using a bitmap.
Observation 8	The structure where the optional capabilities are signalled as separate feature groups makes it impossible to signal combinations of optional features.

Based on the discussion in the previous sections we propose the following:
Proposal 1	Support ‘per band’ reporting for the following FGs:
	FGs related to Single panel Type I codebooks (i.e., FGs 59-2-1-1, 59-2-1-1a, 59-2-1-1b, 59-2-1-1c, 59-2-1-1d, 59-2-1-1e:  Support of enhanced Type-I MP codebook for 64 Tx ports)
	FGs related to Multi panel Type I codebooks (i.e., 59-2-1-2, 59-2-1-2a, 59-2-1-2b)
Proposal 2	For FGs 59-2-1-3, 59-2-1-3a, and 59-2-1-3b, support the same reporting type as Rel-16 eType-II codebook.
Proposal 3	For FGs 59-2-1-4 and 59-2-1-4a, support the same reporting type as Rel-17 FeType-II codebook.
Proposal 4	For FGs 59-2-1-5, 59-2-1-5a, and 59-2-1-5b, support the same reporting type as Rel-18 eType-II Doppler codebook.
Proposal 5	Support only aperiodic CSI-RS and 2-slot CSI-RS resource aggregation in FG 59-2-1-6.
Proposal 6	For FG 59-2-1-7, the pre-requisites should be one of 59-2-1-1/1a/1b, or one of 59-2-1-1c/1d/1e.
Proposal 7	For FG 59-2-1-7, the reporting type should be ‘per band’.
Proposal 8	Support maxNumberSRS-ResourcePerSet = 4 for Rel-19 3 Tx non-codebook based operation.
Proposal 9	Proposal 19	Consider support for the value of 4 for maximum number of simultaneous SRS resource transmission for Rel-19 3 Tx non-codebook based operation once support for maxNumberSRS-ResourcePerSet = 4 is agreed.
Proposal 10	Support the value of 4 for the maximum number of SRS resources in one SRS resource set for Rel-19 3 Tx non-codebook based M-TRP operations.
Proposal 11	Revisit and discuss the note in FG 59-3-4, 59-3-4a, 59-3-5 and 59-3-5a.
Proposal 12	Remove Component 3 from the UE feature for codebook based PUSCH transmission for 3 Tx for S-TRP.
Proposal 13	Rearrange the term ‘only’ in the note for FG-3-3a, as below,
Note: This UE feature can be signalled together with srs-AntennaSwitching8T8R-r18, srs-AntennaSwitchingBeyond4RX-r17, supportedSRS-TxPortSwitch-v1610, or supportedSRS-TxPortSwitch to indicate SRS antenna switching downgrading capability only for a UE with 4Rx, 6Rx or 8Rx.
Proposal 14	Include a set of antenna switching capabilities {t1r1, t2r2, t1r2, t3r3, t2r4, t1r4, t2r6, t1r6, t3r6} for Component 1 of FG 59-3-3, update the name to include “or enhanced 8R’.
Proposal 15	FG 59-1-1 and FG 59-1-2 is signalled per band.
Proposal 16	Include FG 59-1-3, 59-1-4, 59-1-5, 59-1-6 as components in FG 59-1-1 and FG 59-1-2.
Proposal 17	Modify the description of FG 59-4-8 to capture the dedicated UE capability according to RAN1 agreement, e.g., “DCI format 1_1 to indicate TPC command for SRS associated with separate SRS CLPC adjustment closed loop index(es)”
Proposal 18	Add 59-4-8 as one of the prerequisite feature groups for FG 59-4-9a and FG 59-4-9b.
 

3GPP TSG RAN WG1 #120bis			R1-2502865
Wuhan, China, April 7th – 11th, 2025
Agenda item:		9.15.2
Source: 	Qualcomm Incorporated
Title: 	UE features for NR MIMO phase 5
Document for:	Discussion/Decision

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3GPP TSG RAN WG1 #120bis                                   					       												                           R1-2503132
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.2
Source:	Moderator (AT&T)
Title:	Final summary of UE features for NR MIMO Phase 5
Document for:	Discussion/Decision

Conclusion
Agreements reached during RAN1 #120bis as part of this agenda item are summarized in [16].