3GPP TSG RAN WG1 #120bis	    R1-2501786
Wuhan, China, April 7th – 11th, 2025

Source:	ZTE Corporation, Sanechips
Title:	Discussion on UE features for NR mobility enhancements Phase 4
Agenda Item:	9.15.6
Document for:	Discussion and Decision
 

Conclusion
In this contribution, we provide our initial views on Rel-19 UE features for each of sub-agendas for NR mobility enhancements, which can be found in the corresponding sections. 
 

3GPP TSG RAN WG1 #120bis			R1-2501834
Wuhan, China, April 7th – 11th, 2025

Source: 	vivo
Title:	Discussion on UE features for NR Mobility Enhancement Phase 4
Agenda Item:	9.15.6
Document for:	Discussion and Decision

Conclusion
In this contribution we provide our views on UE features for Rel-19 Mobility enhancement in section 2. We have following proposal.
Adopt the UE features listed in table in section 2.

3GPP TSG RAN WG1 #120bis			R1-2501984
Wuhan, China, April 7th – 11th, 2025

Source:	CATT
Title:	Discussion on UE features for NR mobility enhancements Phase 4
Agenda Item:	9.15.6
Document for:	Discussion and Decision

Conclusions
In this contribution we provided our views on UE capability for Rel-19 LTM, and provide the following proposals:
Proposal 1: On L1 measurement for Rel-19 LTM, introduce three basic UE features:
Event triggered L1 measurement reporting
CSI-RS measurements for LTM procedures
CSI acquisition on candidate cell(s)

Proposal 2: For FG event triggered L1 measurement reporting, the following components are at least included:
Support of event triggered L1 measurement reporting based on one event instance
Support of Event LTM2/LTM3/LTM4/LTM5 based measurement and report 
Support of SSB and CSI-RS measurement for event triggered L1 measurement reporting

Proposal 3: For FG CSI-RS measurements for LTM procedures, the following components are at least included:
Support periodic CSI-RS for candidate cell L1-RSRP measurement for gNB scheduled reporting
Support peridic, semi-persistent and aperiodic reporting

Proposal 4: For FG CSI acquisition on candidate cell(s), the following components are at least included:
Support CSI reporting to the target cell after reception of LTM CSC MAC-CE
Support periodic CSI-RS measurement after reception of LTM CSC MAC-CE
Proposal 5: With the prerequisite of FG CSI-RS measurements for LTM procedures, a separate UE feature, semi-persistent CSI-RS measurements for LTM procedures, is introduced on gNB scheduled L1-RSRP reporting. The component at least includes:
Support Semi-persistent CSI-RS for candidate cell L1-RSRP measurement for gNB scheduled reporting
Proposal 6: With the prerequisite of FG CSI acquisition on candidate cell(s), a separate UE feature, CSI-RS measurement before LTM CSC MAC-CE, is introduced on CSI acquisition. The component at least includes:
Support CSI-RS measurement starts before reception of LTM CSC MAC CE
Proposal 7: Support conditional intra-CU LTM as a basic UE feature. 
Proposal 8: For FG conditional intra-CU LTM, the following components are at least included:
Support of conditional LTM based on one event instance.
Support of Event LTM3/LTM5 based conditional LTM execution condition.
Support SSB and CSI-RS measurement for intra-CU conditional LTM.
Support RACH based and RACH-less conditional intra-CU LTM

3GPP TSG RAN WG1 #120bis	R1-2502138
Wuhan, China, 7 – 11 April 2025

Agenda item:		9.15.6
Source:	Nokia
Title:	UE Features for NR mobility enhancements Phase 4
Document for:		Discussion and Decision

Conclusion
In this contribution we make the following observations and proposals:
Proposal 1:	Add the proposed FGs from Table 1 as basis for defining the Rel-19 mobility enhancement FGs.

3GPP TSG RAN WG1 #120bis			R1-2502183
Wuhan, China, April 7th – 11th, 2025

Source: 	CMCC
Title:	Discussion on UE features for NR mobility enhancements Phase 4
Agenda item:	9.15.6
Document for:	Discussion & Decision

Conclusions
In this contribution, we discuss Rel-19 UE features for mobility, and the following proposal is made.
Proposal 1: Take the following UE FGs for the feature of mobility:

3GPP TSG RAN WG1 #120bis                                                                                                                                                                                         R1-2502247
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.6
Source:	Huawei, HiSilicon
Title:	UE features for NR mobility enhancements phase 4
Document for:	Discussion and Decision

Conclusions
This contribution presents our views on Rel-19 UE features for LTM evolution. We had following proposals. 
Proposal 1: Add a new FG (FG X-1) for NW triggered intra-frequency L1-RSRP measurement based on periodic CSI-RS (s). FG45-1 should be prerequisite of FGX-1. The components and the corresponding value ranges of FG45-1 can be inherited.
Proposal 2: Add a new FG (FG X-2) for inclusion of current SpCell in the L1 measurement report based on CSI-RS (s).
Proposal 3: Add a new FG (FG X-3) to support the NW triggered intra-frequency L1- RSRP measurement and reporting based on semi-persistent CSI-RS(s). FGX-1 should be the prerequisite. 
Proposal 4: The following FGs could be added for Rel-19 LTM,
FG X-4: Support of intra-frequency CSI acquisition for LTM. 
FG X-5: Support of intra-frequency CSI acquisition before LTM CSC MAC CE for LTM, FGX-4 as prerequisite.

Proposal 5: For X-4, support the following components:
Support of intra-frequency CSI measurement based on periodic CSI-RS(s) of candidate cell(s) after LTM CSC MAC CE
Support of CSI reporting to target cell
The maximum number of candidate cell(s) UE can be configured to measure CSI

Proposal 6: For X-5, support the following components:
Support of intra-frequency CSI measurement based on periodic CSI-RS(s) of candidate cell(s) before LTM CSC MAC CE
Maximum number of candidate cell(s) on which UE can perform intra-frequency CSI acquisition before LTM CSC MAC CE
Proposal 7:  UE features of LTM event triggered reporting can be discussed in RAN2.

3GPP TSG RAN WG1 #120bis		R1-2502299
Wuhan, China, April 7th – 11th, 2025

Source:	OPPO
Title:	Discussions on UE features for NR mobility enhancements
Agenda Item:	9.15.6
Document for:	Discussion and Decision

Conclusion
Proposal 1: Support the following UE features for Rel-19 CSI-RS based L1-RSRP measurement for LTM:
Supporting L1-RSRP measurement on CSI-RS resource of candidate cell is UE capability;
Supporting periodic reporting, semi-persistent reporting and aperiodic reporting are separate UE capability;
For L1-RSRP measurement, the UE capability includes the maximal number of CSI-RS resources per candidate cell, maximal number of candidate cells and maximal number of CSI-RS resources across all candidate cells;
For L1-RSRP measurement reporting, the UE capability shall include the maximal number of reported CRI of one candidate cell, the maximal number of reported candidate cell.

Proposal 2: Support the following UE features for Rel-19 target cell CSI acquisition:
Measure CSI of candidate cell before LTM Cell switch command is a separate UE capability;
The maximal number of candidate cells for CSI acquisition;

Proposal 3: For Rel-19 LTM event trigger L1 measurement reporting, support the following UE capability:
Support Event LTM 2 is UE capability;
Support Event LTM 3 is UE capability;
Support Event LTM 4 is UE capability;
Support Event LTM 5 is UE capability; 

Proposal 4: Supporting SSB based L1-RSRP measurement for LTM event triggered reporting is UE capability;

Proposal 5: Supporting CSI-RS based L1-RSRP measurement for LTM event triggered reporting is UE capability;
Proposal 6: For Rel-19 LTM event trigger L1 measurement reporting, support the following UE capability:
Maximal number of SSBs per candidate cell for L1-RSRP measurement;
Maximal number of CSI-RS per candidate cell for L1-RSRP measurement;
Maximal number of SSBs of all candidate cells for L1-RSRP measurement;
Maximal number of CSI-RS of all candidate cells for L1-RSRP measurement;
Maximal number of candidate cells for LTM event trigger reporting; 

Proposal 7: For Rel-19 LTM event trigger L1 measurement reporting, support the following UE capability:
Maximal number of L1-RSRP reports of one candidate cell in one beam report;
Maximal number of candidate cells reported in one beam report;
Maximal number of L1-RSRP reports of all candidate cell in one beam report;

3GPP TSG RAN WG1 #120bis		                                    R1-2502396
Wuhan, China, April 7th – 11th, 2025
Agenda item:		9.15.6
Source:			Samsung
Title:			UE features for NR mobility enhancements Phase 4
Document for:		Discussion and decision

Conclusion





In this contribution, the following proposal is provided:

Proposal 1. Support the following list of UE capabilities for Rel-19 LTM.

3GPP TSG RAN WG1 #120bis                                                     R1-2502464
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.6
Source:	Xiaomi
Title:	Discussion on UE features for NR mobility enhancements Phase 4
Document for:        Decision

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

3GPP TSG-RAN WG1 Meeting #120-bis	Tdoc R1-2502563
Wuhan, China, April 7th – 11th 2025

Agenda Item:	9.15.6
Source:	Ericsson
Title:	UE features for NR mobility enhancements phase 4
Document for:	Discussion, Decision

1	

Conclusion
In the previous sections we made the following observations: 
No table of figures entries found.
Based on the discussion in the previous sections we propose the following:
Proposal 1	For Rel-19 Mobility, introduce FGs for intra- resp. inter-frequency L1 measurements measurement and reports based on periodic CSI-RS for LTM.
Proposal 2	For Rel-19 Mobility, introduce an FG for L1 measurements and reports based semi-persistent CSI-RS.
Proposal 3	For Rel-19 Mobility introduce an FG for CSI measurement and report for Target Cell after LTM Cell Switch Command MAC CE
Proposal 4	For Rel-19 Mobility introduce an FG for CSI measurement for LTM Candidate Cell before LTM Cell Switch Command MAC CE
Proposal 5	RAN2 defines the UE features for event-driven reporting for LTM.
 

3GPP TSG-RAN WG1 Meeting #120bis	Tdoc R1-2502644
Wuhan, China, April 7th – 11th, 2025
Agenda Item:	9.15.6
Source:	Apple 
Title:	Rapporteur input on UE features for Rel-19 NR Mobility enhancements Ph4
Document for:	Discussion
1	

TDoc file conclusion not found

3GPP TSG RAN WG1 #120bis	                                   					       												                           R1-2502741
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.6
Source:	Moderator (AT&T)
Title:	Summary of UE features for NR mobility enhancements Phase 4
Document for:	Discussion/Decision

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

3GPP TSG RAN WG1 #120bis																		R1-2502790
Wuhan, China, April 7th – 11st, 2025

Source:	NTT DOCOMO, INC.
Title:	Discussion on UE features for NR mobility enhancemens Phase4
Agenda Item:	9.15.6
Document for: 	Discussion and Decision

Summary
In this contribution, we provide our initial views on Rel-19 UE features for NR mobility. The details can be found in above section.

TDoc file unavailable

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3GPP TSG RAN WG1 #120bis	                                   					       							                    R1-2503134
Wuhan, China, April 7th – 11th, 2025

Agenda Item:	9.15.6
Source:	Moderator (AT&T)
Title:	Final summary of UE features for NR mobility enhancements Phase 4
Document for:	Discussion/Decision

Conclusion
Agreements reached during RAN1 #120bis as part of this agenda item are summarized in [13].