Auto-Generated Summary

> Provide an extensive summary of the agreements by topic. No need to mention CRs.

Summary of Agreements by Topic:

1. Introduction of 1024-QAM for NR Downlink (DL):

• Adoption of LTE 1024-QAM Constellation: For supporting 1024-QAM in NR downlink, the LTE 1024-QAM constellation is adopted.
• Modulation Schemes: 1024-QAM is added to the list of supported modulation schemes for NR downlink, alongside QPSK, 16QAM, 64QAM, and 256QAM.

2. RRC Signaling:

• New RRC Signaling: Introduced to indicate the use of 1024-QAM CQI and MCS tables.
• Configuration Details:
• RRC signaling for 1024-QAM MCS table is present only in PDSCH-config.
• Separate RRC signaling is used for DCI formats 1_1 and 1_2 if both are supported.
• If mcs-Table-r17 is set to ‘qam1024’ in PDSCH-config, the UE uses the 1024-QAM MCS table for PDSCH scheduled with DCI format 1_1 (CRC scrambled by C-RNTI or CS-RNTI).

3. CQI Table Updates:

• Reuse of LTE CQI Table: The LTE CQI table is reused with updated entries for 1024-QAM.
• Efficiency Updates: For CQI index 14, the spectral efficiency value is slightly updated from 8.3321 to 8.3301.
• New CQI Entries: Two CQI entries are added for 1024-QAM:
• CQI index 14: Code rate 853, Efficiency 8.3301.
• CQI index 15: Code rate 948, Efficiency 9.2578.

4. MCS Table Updates:

• Five-Bit MCS Table: A five-bit MCS table with 1024-QAM entries is adopted.
• Changes to 256-QAM MCS Table: Five explicit MCS entries (indices 2, 4, 6, 8, 10) are removed from the NR 256-QAM MCS table and replaced with new entries for 1024-QAM.
• New MCS Entries for 1024-QAM:
• Code rates: 805.5, 853, 900.5, 948.
• Efficiencies: 7.8662, 8.3301, 8.7939, 9.2578.

5. Text Proposals for Specifications:

• TS 38.201: Updated to include 1024-QAM in the list of supported modulation schemes.
• TS 38.211: Reflects the agreed 1024-QAM constellation and modulation order (10).
• TS 38.214: Updates include:
• TBS determination for subclause 5.1.3.2.
• PT-RS determination for subclause 5.1.6.3.
• Per-cell data rate constraint for subclause 5.1.3.

6. Simulation Assumptions:

• Parameters for Link-Level Simulations: Companies are encouraged to use the following assumptions:
• Carrier frequency: 3.5 GHz, SCS: 30 kHz, System BW: 100 MHz.
• Channel model: AWGN, CDL-B or CDL-C with up to 30 ns delay spread.
• UE speed: 0 km/h, 3 km/h.
• Antenna configurations: UE (1T4R, 2T4R, 4T4R), gNB (32T32R, 64T64R, 2T, 8T).
• Coding rates for 1024-QAM: 0.70, 0.75, 0.80, 0.85, 0.90, 0.925.
• DMRS type: Type 1, Number of DMRS symbols: 1.
• Scheduled RBs: 273.
• PDSCH mapping: Type A, Start symbol 2, Duration 12.
• Rank: Rank 1, Rank 2.
• Metric: Crossover SNR at transition points between 256-QAM and 1024-QAM.

7. Coordination with RAN2 and RAN4:

• LS to RAN2 and RAN4: RAN1 decisions on 1024-QAM and related RRC parameters, CQI/MCS tables were communicated to RAN2 and RAN4.

This summary consolidates the agreements across different aspects of the introduction and support of 1024-QAM for NR downlink.