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Summary of Agreements by Topic

Enhancements on Multi-beam Operation

1. Unified TCI Framework:
• Support for joint and separate DL/UL TCI states.
• DL TCI state pool includes all valid target DL RSs based on Rel-15/16 QCL rules.
• UL TCI state pool may include SRS resources or resource sets for beam management.
• Common TCI state ID update and activation supported for intra-band CA.
2. Beam Indication:
• DCI formats 1_1/1_2 without DL assignment supported for beam indication.
• ACK/NACK mechanism used for beam indication acknowledgment.
• Application time for beam indication set to the first slot after acknowledgment.
3. Advanced Beam Refinement/Tracking:
• Focus on latency reduction and beam measurement/reporting enhancements.
• Candidate schemes include UE-initiated beam selection and aperiodic beam measurement/reporting.
4. Path-loss Measurement:
• PL-RS included or associated with UL TCI state or joint TCI state.
• UE capability introduced for handling beam misalignment between DL source RS and PL-RS.
5. Inter-cell Beam Management:
• Support for MAC-CE and/or DCI-based beam indication for inter-cell mobility.
• DL QCL and UL spatial relation rules extended to inter-cell scenarios.
6. Multi-beam Measurement/Reporting:
• Support for reporting up to K=4 beams associated with non-serving cells in a single CSI reporting instance.

Enhancements for Multi-TRP Deployment

1. PUCCH and PUSCH Enhancements:
• Support for multi-TRP intra-slot repetition for PUCCH formats.
• Dynamic switching between single-TRP and multi-TRP modes indicated via new DCI fields.
2. A-CSI Multiplexing:
• A-CSI multiplexed on the first PUSCH repetition corresponding to each TRP when no TB is carried.
3. Power Control:
• Enhanced open-loop power control parameter indication for multi-TRP PUSCH.
4. PHR Reporting:
• Study ongoing for calculating and reporting PHRs for multi-TRP PUSCH repetition.

Enhancements on Beam Management for Multi-TRP

1. Beam Reporting:
• Maximum number of beam groups in a single CSI-report set as a UE capability.
2. TRP-specific BFR:
• Support for configuration of up to 2 PUCCH-SR resources in a cell group.

Enhancements on HST-SFN Deployment

1. SFN Transmission:
• Enhanced SFN PDCCH transmission identified by the number of activated TCI states.
2. QCL Assumptions:
• Variant A supported for QCL assumptions when DMRS ports are associated with two TCI states.

CSI Enhancements: MTRP and FR1 FDD Reciprocity

1. Port Selection Codebook:
• Maximal CSI-RS port number set to Pmax = 32.
2. Compression Coefficient:
• Values of Beta for non-zero coefficients of W2 include {1/4, 1/2, 3/4, 1}.
3. PMI/RI Sharing:
• Study ongoing for enabling/disabling PMI/RI sharing between NCJT and single-TRP CSI hypotheses.
4. Dynamic Updating:
• Study ongoing for dynamic updating of CMR pairs, TCI states, and single-TRP CSIs in NCJT CSI reports.

Other Topics

1. UE Capability Reporting:
• UE capability introduced for maximum number of TCI state pools across BWPs and CCs.
2. Specification Impact:
• Study ongoing for prioritizing CSI hypotheses, updating CSI omission rules, and reducing UCI payload.