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Summary of Agreements by Topic

Multi-cell PUSCH/PDSCH Scheduling with a Single DCI

1. DCI Formats and Field Design:
• DCI format 0_X is used for scheduling multiple PUSCHs, and DCI format 1_X is used for scheduling multiple PDSCHs.
• Type-1 fields include common information for all co-scheduled cells, while Type-2 fields are specific to each co-scheduled cell.
• Type-1A fields (e.g., priority indicator, TDRA) apply to all co-scheduled cells, while Type-1B fields (e.g., rate matching indicator, ZP CSI-RS trigger) are configurable per cell.
• HARQ-ACK retransmission indicator and enhanced Type-3 HARQ-ACK codebook indicator are supported in DCI format 1_X.
2. Scheduling Restrictions:
• A UE does not expect simultaneous configuration of multicast reception and multi-cell scheduling in the same PUCCH group.
• Search space sharing for DCI format 0_3/1_3 is not supported.
3. Field Repurposing:
• Fields in DCI format 1_3 can be repurposed for SCell dormancy indication, enhanced Type-3 HARQ-ACK codebook, or HARQ retransmission.
4. HARQ-ACK Codebook:
• Type-2 HARQ-ACK codebook supports multi-cell scheduling.
• HARQ-ACK information for SCell dormancy indication is mapped to the second Type-2 HARQ-ACK sub-codebook.
5. Numerology and Bandwidth Part (BWP) Switching:
• Co-scheduled PDSCHs/PUSCHs use the same numerology.
• BWP indicator applies only to scheduled cells with valid FDRA values.
6. Field Parsing:
• For Type-2 fields in DCI format 0_3/1_3, truncation or zero-padding is applied per "block" of the field during BWP switching.

Multi-carrier UL Tx Switching Scheme

1. Switching Mechanisms:
• Dynamic Tx carrier switching across 3 or 4 bands is supported.
• UE capability uplinkTxSwitchingPeriodForBandPair determines the switching gap for uplink switching involving 3 or 4 bands.
2. Switching Gap and Band Priority:
• The switching gap is determined based on UE capability and band priority.
• For dual UL, switching period location is determined based on the priority of the bands involved.
3. Handling Dormant/Deactivated Bands:
• Dormant or deactivated bands are counted in the determination of 2, 3, or 4 bands for UL Tx switching.
• SCS of dormant/deactivated cells is not considered for reference slot determination.
4. Scheduling Restrictions:
• UL transmissions overlapping in time are restricted to avoid interruptions caused by late-arriving DCIs.
5. Field Repurposing:
• Fields in DCI format 0_3/1_3 can be repurposed for SCell dormancy indication or HARQ retransmission.
6. UE Capability Reporting:
• UE reports support for switched UL, dual UL, or both for each band pair in the band combination.

General Agreements Across Topics

1. Numerology Consistency:
• Scheduling PDSCHs/PUSCHs across multiple cells requires consistent numerology.
2. Field Configuration:
• Type-1 and Type-2 fields are configured per BWP per cell for multi-cell scheduling.
3. Search Space and DCI Size:
• Separate search space sets are configured for DCI format 0_X/1_X and legacy DCI formats.
• DCI size alignment procedures are applied to maintain Rel-17 limits.
4. Specification Updates:
• Updates to TS38.213 and TS38.214 reflect agreements on uplink switching and multi-cell scheduling.
5. SCell Dormancy:
• SCell dormancy indication is supported in DCI formats 0_3/1_3, with field sizes defined based on the number of DormancyGroupIDs.

This summary captures the key agreements across the topics of multi-cell scheduling and multi-carrier uplink transmission switching, focusing on field design, scheduling restrictions, numerology, and specification updates.