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Summary of Agreements by Topic

Channel Model Validation

1. Delay Spread Updates:
• UMi LOS/NLOS and UMa LOS/NLOS delay spread parameters were updated using weighted least square curve fitting across three frequency groups (below 6 GHz, 6-24 GHz, above 24 GHz).
• Updated formulas for UMi and UMa delay spread parameters were provided.
2. Angular Spread Updates:
• UMi LOS/NLOS and UMa LOS/NLOS AOA spread parameters were updated using similar weighted curve fitting methods.
• UMa LOS/NLOS AOD spread parameters were updated without frequency dependency.
3. Pathloss Models:
• No consensus to update UMa LOS/NLOS pathloss models due to lack of significant observed differences.
4. Absolute Delay Parameters:
• Adopted absolute delay parameters for RMa and InH scenarios.
• Defined upper bound of absolute delay for indoor office scenarios as 2L/c, where L is the largest dimension of the office hall.
5. Correlation Distance for Spatial Consistency:
• Adopted correlation distances for SMa spatial consistency across LOS, NLOS, and O2I states.

Suburban Macrocell (SMa) Scenario

1. Description:
• Updated SMa description to include details about building types, open areas, and vegetation prevalence.
2. Calibration Assumptions:
• ISD values of 1299m and 1732m were adopted for calibration purposes.
• Down-tilt values for SMa were confirmed: 95° for ISD = 1299m and [93°] for ISD = 1732m.
3. LOS Probability:
• Adopted LOS probability equations for SMa scenarios.
4. Penetration Loss Models:
• Introduced new outdoor-to-indoor (O2I) building penetration loss model for SMa.

UE Antenna Modeling

1. Directional Radiation Pattern:
• Supported directional antenna radiation patterns for calibration purposes with specific vertical and horizontal parameters.
2. Antenna Placement:
• Defined candidate antenna locations for handheld devices and CPE devices.
• Introduced optional antenna imbalance modeling for handheld devices.
3. SNS Calibration:
• Fixed attenuation values for candidate antenna locations were defined for different frequency ranges and usage scenarios (e.g., one hand grip, dual hand grip, head and one hand grip).

Near-Field Channel Modeling

1. Phase Modeling:
• Adopted formulas for modeling phase parameters of direct and non-direct paths between TRP and UE.
2. Distance Scaling:
• Scaling factors for generating distances of clusters were defined for UMi, UMa, and InH scenarios using Beta distributions.
3. Calibration Parameters:
• Calibration parameters for near-field modeling were specified for UMi-street Canyon and Indoor-office scenarios, including antenna configurations, polarized antenna modeling, and metrics.

Spatial Non-Stationarity (SNS)

1. Modeling Approaches:
• Unified visible probability and visibility region-based approaches were adopted for SNS modeling.
• Power attenuation factors for clusters impacted by SNS were defined.
2. Visibility Region:
• Visibility region was modeled as a rectangle randomly located at a corner of the antenna array with specific probabilities for upper/lower and left/right parts.
3. BS and UE Side SNS Calibration:
• Assumptions for SNS calibration at BS and UE sides were provided, including metrics and spatial consistency modeling.

Material Penetration Loss

1. Standard Glass:
• Clarified reference thickness as 3 cm; no changes to the model.
2. IRR Glass:
• Updated model equation for single coating IRR glass.
3. Concrete:
• Clarified reference thickness as 23 cm; no changes to the model.
4. Wood:
• Clarified reference thickness as 3.3 cm; no changes to the model.
5. Plywood:
• Introduced a penetration loss model for plywood with reference thickness of 1.27 cm.

Cluster Modeling

1. Number of Clusters:
• Continued study on the number of clusters for InH, UMi, and UMa scenarios.
• Further consideration of distribution of clusters, resolvable clusters, and subpaths.
2. Intra-Cluster Power Angular Profile:
• Continued study on intra-cluster power angular profile modeling for all scenarios.

Calibration Parameters

1. Large-Scale Calibration:
• Parameters for large-scale calibration were defined, including metrics like coupling loss and geometry.
2. Full Calibration:
• Parameters for full calibration were specified, including fast fading modeling and metrics like delay spread and angle spread.
3. Additional Features Calibration:
• Calibration parameters for features like oxygen absorption, spatial consistency, blockage, near-field modeling, and SNS were provided.

Miscellaneous

1. Indoor Office Absolute Delay:
• Defined upper bound of absolute delay as 2L/c.
2. Indoor Factory Scenarios:
• Scaling factors for non-direct paths were defined using Beta distributions.
3. UMi/UMa Pathloss Convergence:
• Further discussion on resolving pathloss convergence beyond breakpoint distance.
4. SMa O2I Parameters:
• Adopted SMa O2I parameters as working assumptions.
5. Clause Updates:
• Adopted changes to Clauses 6.2 and 7.2 of TR38.901 to reflect updated scenarios and modeling assumptions.