| { |
| "angles": { |
| "acceptance_comparison": "float32_values_vs_float32_rounded_closed_interval_endpoints", |
| "acceptance_tolerance_rad": 1e-06, |
| "phi": "azimuth_from_positive_x_toward_positive_y", |
| "r": "arrival_at_UE", |
| "t": "departure_at_BS", |
| "theta": "zenith_from_positive_z", |
| "unit": "radian" |
| }, |
| "arrays": { |
| "ref": "schema/arrays.json", |
| "sha256": "b0dca55700a55bc1d9c6da84666fe168131355a7f03da0484f117d8bfcac89c1" |
| }, |
| "coefficient": { |
| "numeric_representation": "a_real_plus_i_a_imag", |
| "power_expression": "10*log10(a_real^2+a_imag^2)", |
| "power_reference": "unit_coefficient_power_not_dBm_or_RSRP", |
| "source_label": "sionna_rt_scalar_passband", |
| "unit": "dimensionless" |
| }, |
| "coordinates": { |
| "frame": "scene_cartesian", |
| "georeferencing": "not_declared", |
| "handedness": "right_handed", |
| "position_unit": "metre", |
| "z_axis": "up" |
| }, |
| "delay": { |
| "field": "tau", |
| "meaning": "propagation_delay_not_delay_spread", |
| "unit": "second" |
| }, |
| "geometry": { |
| "descriptor": "scene.json", |
| "format": "Mitsuba XML with OBJ meshes" |
| }, |
| "identity": { |
| "fields": [ |
| "collection_id", |
| "scene_id", |
| "component", |
| "frequency_hz", |
| "bs_index" |
| ], |
| "record_id": "sha256 of canonical identity JSON (sorted keys, separators , and :, UTF-8)", |
| "scene_assets": "positions and geometry have frequency_hz and bs_index null" |
| }, |
| "interaction_codes": { |
| "ref": "schema/interaction-codes.json", |
| "sha256": "83238d48813aade18f5c8dd47815b3fbe9603ca366a1c87d7ebdd9be413a0315" |
| }, |
| "interaction_flags": { |
| "dtype": "<u2", |
| "encoding": "bitwise_OR_of_1_shifted_left_by_code", |
| "masks": { |
| "1": 2, |
| "2": 4, |
| "4": 16, |
| "8": 256 |
| } |
| }, |
| "interaction_order": "BS_to_UE", |
| "link_direction": "downlink", |
| "release_profile": { |
| "ref": "schema/release-profile.json", |
| "sha256": "b06acfb9ce30f98557a0c87bda4f1a8985f3e7ccdc05622585fe4b9aaf6f01ba" |
| }, |
| "retention": { |
| "interaction_rank": "source slot order, strictly increasing per path; gaps retained", |
| "path_rank": "pre-threshold rank; gaps retained", |
| "ranking": "descending power before threshold", |
| "solver_valid_required": true, |
| "threshold_comparator": ">", |
| "threshold_db": -150, |
| "top_k": 16, |
| "ue_rows": "strictly increasing unique UE indices" |
| }, |
| "schema": "wireless.channel-conventions", |
| "version": 2 |
| } |
|
|
