The data files described here are required by fixed wireless broadband providers that submit availability data in a polygon format (not as a list of locations). In such cases, the following files must be uploaded in the BDC system:
- Fixed Wireless Propagation Modeling Information
- Fixed Wireless Base Station Location and Height
- Fixed Wireless Base Station Carriers
- Fixed Wireless Link Budget Parameters
- Fixed Wireless Clutter Category Data
Fixed Wireless Propagation Modeling Information
This file contains records of each propagation model used to model terrestrial fixed wireless broadband coverage. The file must be in Comma Separated Value (CSV) format and match the specifications in the table below. All values are required unless otherwise indicated.
| Field | Header | Data Type | Example | Description / Notes |
|---|---|---|---|---|
| Model ID | model_id | Text | ITM-1A |
Unique identifier, assigned by the filer, for the propagation model used to generate the coverage data. - Value length must be less than 256 characters. |
| Modeling Tool Name | tool_name | Text | Atoll | Name of the planning tool used to generate the coverage data. |
| Modeling Tool Version | tool_version | Text | 3.4.0 | Version number of the planning tool used to generate the coverage data. |
| Modeling Tool Developer | tool_developer | Text | Forsk | Name of the developer of the planning tool used to generate the coverage data. |
| Model Resolution | model_resolution | Integer | 10 |
Resolution of the model used to generate the coverage data, in meters. Value may be approximate for models measured in arcseconds (e.g., 1 arcsecond ≈ 30 meters). Value must be greater than 0 and less than or equal to 100. |
| Receiver Height | receiver_height | Decimal | 5.5 |
Height of the receiver / CPE antenna used in modeling, in meters (with one decimal digit). Value must be greater than or equal to 4 and less than or equal to 7. |
| Terrain Data Source | terrain_source | Text | USGS | Name of the creator, developer, or supplier of the terrain dataset |
| Terrain Data Vintage | terrain_vintage | Date | 2021-10-18 |
Vintage date of terrain dataset, with at least the year of the dataset entered. Value must match valid ISO-8601 date format, YYYY-MM-DD. If only the year is entered, then YYYY. |
| Terrain Resolution | terrain_resolution | Integer | 30 |
Resolution or granularity of terrain data, in meters. Value may be approximate for datasets measured in arcseconds (e.g., 1 arcsecond ≈ 30 meters). Value must be greater than 0 and less than or equal to 100. |
| Clutter Data Source | clutter_source | Text | ESA Worldcover | Name of the creator, developer, or supplier of the clutter dataset |
| Clutter Data Vintage | clutter_vintage | Date | 2020 |
Vintage date of clutter dataset, with at least the year of the dataset entered. Value must match valid ISO-8601 date format, YYYY-MM-DD. If only the year is entered, then YYYY. |
| Clutter Data Resolution | clutter_resolution | Integer | 10 |
Resolution or granularity of clutter data, in meters. Value may be approximate for datasets measured in arcseconds (e.g., 1 arcsecond ≈ 30 meters). Value must be greater than 0 and less than or equal to 100. |
| Model Validation | calibration_flag | Boolean Integer {1} | 1 |
Affirmation that the model has been validated and calibrated at least one time using on-the-ground and/or other real-world measurements taken by the provider or its vendor. Value must be: 1 True |
| Model Calibration Date | calibration_date | Date | 2021-09-05 |
Most recent date that the model was calibrated. This value may be null. If entered, value must match valid ISO-8601 date format including, at a minimum, the year and month, e.g.: YYYY-MM[-DD] |
| Model Calibration Process | calibration_process | Text |
Brief narrative summary of the process used to calibrate the model. Value may be null. |
Fixed Wireless Base Station Location and Height
This file must contain the records for each base station used to model terrestrial fixed wireless broadband coverage.
| Field | Header | Data Type | Example | Description / Notes |
|---|---|---|---|---|
| Site ID | site_id | Text | VA0128 |
Unique site ID, assigned by the filer, for the base station to which this data record applies. Value length must be less than 256 characters. |
| Latitude | latitude | Decimal | 38.903692 |
Geographic coordinate latitude of the infrastructure in decimal degrees using WGS-84 coordinate reference system. Must be a minimum of 6 and a maximum of 7 decimal digits. |
| Longitude | longitude | Decimal | -77.009676 |
Geographic coordinate longitude of the infrastructure in decimal degrees using WGS-84 coordinate reference system. Must be a minimum of 6 and a maximum of 7 decimal digits. |
| Height of Base Station | site_height | Decimal | 150.0 |
Height of the base station site above-mean-sea-level (AMSL), in meters Value must be greater than or equal to -100 and less than or equal to 6500. |
| Model ID | model_id | Text | ITM-1A |
Unique identifier for the propagation model used to generate the coverage for the base station. Value must correspond to a model_id value in the Fixed Wireless Propagation Model Details file. |
| Morphology | morphology | Enumerated Integer {1} | 2 | Code, taken from the list below, indicating the morphology of the area for which coverage is modeled from the base station.
Value must be one of the following codes:
|
Fixed Wireless Base Station Carriers
This file contains the records of each carrier (i.e., antenna) used in each sector of the fixed wireless provider's base stations, as identified in the corresponding Base Station Location and Height data file.
| Field | Header | Data Type | Example | Description / Notes |
|---|---|---|---|---|
| Site ID | site_id | Text | VA0128 |
Unique site ID for the base station with which the carrier/antenna is associated. Value must correspond to a site_id value in the Fixed Wireless Base Station Location and Height file. |
| Antenna Make and Model | antenna_model | Text | PCS-06515-0DH |
The make and model of the antenna deployed. If multiple antennas are used at a particular Site ID, then each should be entered as a separate record. |
| Technology Code | technology | Enumerated Integer | 120 |
Integer code, taken from the list below, indicating the technology standard used by the channel/carrier described in this record. Value must be one of the following codes:
|
| Link Budget ID (Downlink) | downlink_link_budget_id | Text | VA1238DL |
Unique identifier for the downlink link budget assumed in generating the coverage data for the base station carrier. Value must correspond to a link_budget_id value in the downlink Fixed Wireless Link Budget Parameters file. |
| Link Budget ID (Uplink) | uplink_link_budget_id | Text | VA1238UL |
Unique identifier for the uplink link budget assumed in generating the coverage data for the base station carrier. Value must correspond to a link_budget_id value in the uplink Fixed Wireless Link Budget Parameters file. |
| Downlink Frequencies with Carrier Aggregation | downlink_carrier_aggregation_frequencies | String | 737.5,2172.625 |
List all downlink frequencies deployed with carrier aggregation with this radio frequency (RF) carrier. List the center frequencies, in MHz, separated by a comma and no space. Value may be null if downlink carrier aggregation is not used for this RF carrier. |
| Uplink Frequencies with Carrier Aggregation | uplink_carrier_aggregation_frequencies | String | 707.5,1772.625 |
List all uplink frequencies deployed with carrier aggregation with this RF carrier. List the center frequencies, in MHz, separated by a comma and no space. Value may be null if uplink carrier aggregation is not used for this RF carrier. |
Fixed Wireless Link Budget Parameters
This file must contain the fields listed below for each fixed wireless link budget, with separate records for each downlink link budget and each uplink link budget. If a service provider uses different link budget parameters for different technologies or spectrum bands, then this file must contain records for each set of distinct downlink / uplink link budget parameters.
| Field | Header | Data Type | Uplink Example | Downlink Example | Description / Notes |
|---|---|---|---|---|---|
| Link Budget ID | link_budget_id | Text | VA1238UL | VA1238DL |
Unique identifier to identify the link budget. Value length must be less than 256 characters. |
| Link Direction | link_direction | Enumerated Text {1} | U | D |
Direction of the link budget described in this record. Value must be one of the following codes:
|
| Technology Code | technology | Enumerated Integer | 120 | 120 |
Integer code, taken from the list below, indicating the technology standard used by the channel/carrier described in this record. Value must be one of the following codes:
|
| Duplex Scheme | duplex_scheme | Enumerated Text {1} | F | F |
Duplex scheme used in the link budget from one of two possible values representing either Frequency Division Duplexing or Time Division Duplexing (including CSMA/CA). Value must be one of the following codes:
|
| Allocation Ratio | allocation_ratio | Text | 2:1 | 2:1 |
Downlink to uplink time allocation ratio. Value may be null. If entered, value must match the format "<numeric>:<numeric>", and each numeric value must be an integer greater than 0. |
| Morphology | morphology | Enumerated Integer {1} | 2 | 2 |
Code, taken from the list below, indicating the morphology of the area used in the link budget. Value must be one of the following codes:
|
| Target Speed | target_speed | Decimal | 5.0 | 50.0 |
Target user speeds of the link budget in Mbps (with up to two decimal digits). Value must be greater than or equal to 0 and less than or equal to 10000. |
| Modulation Scheme | modulation_scheme | Text | 16-QAM 2/3 | 16-QAM 2/3 |
The modulation and the coding rate used to deliver the target user speed of the link budget. Filers should enter the modulation followed by a space and then a fraction (<numeric>/<numeric>). Value must be in the format "<string> <numeric>/<numeric>", and each numeric value must be an integer greater than 0. |
| Antenna Configuration | antenna_configuration | Text | 1x2 | 2x2 |
Typical deployed antenna configuration. Value must be in the format "<numeric>x<numeric>", and each numeric value must be an integer greater than 0. |
| Operational Frequency | operational_frequency | Decimal | 5240.0 | 5240.0 |
Center frequency of the operational carrier, in MHz (with up to three decimal digits). Value must be greater than 0. |
| Channel Bandwidth | channel_bandwidth | Decimal | 40.0 | 40.0 |
Total bandwidth of the operating channel, in MHz (with up to two decimal digits). Value must be greater than 0 and less than or equal to 1000. |
| Subcarriers | total_subcarriers | Integer | 52 | 52 |
Total number of subcarriers for the channel (i.e., resource element) if the provider uses OFDM/OFDMA technology. Value may be null if provider does not use OFDM/OFDMA technology. If entered, value must greater than 0. |
| Subcarrier Spacing | subcarrier_spacing | Decimal | 312.5 | 312.5 |
Subcarrier (or resource element) spacing / bandwidth in KHz if the provider uses OFDM/OFDMA technology (with up to two decimal digits). Value may be null if provider does not use OFDM/OFDMA technology. If entered, value must be greater than or equal to 15 and less than or equal to 10000. |
| Cell Loading Factor | cell_load | Decimal | 0.5 | 0.5 |
Average cell loading factor (both own cell and neighboring cells). Report as a percentage (with up to two decimal digits). Value must be greater than or equal to 0.5 and less than or equal to 1. |
| Required Subcarriers | required_subcarriers | Integer | 12 | 20 |
Number of required subcarriers to deliver the target user speeds. Value must be greater than 0. |
| Required SINR | required_sinr | Decimal | 6.00 | 8.00 |
Required signal to interference and noise ratio (SINR) to deliver the target speeds, in dB (with up to two decimal digits). Value must be greater than or equal to -20 and less than or equal to 50. |
| Spectral Efficiency | spectral_efficiency | Decimal | 1.00 | 1.70 |
Required spectral efficiency to deliver the user speeds at the cell edge, in bps / Hz (with up to two decimal digits). Value must be greater than 0. |
| Total Transmitter Power | total_tx_power | Decimal | 23.00 | 30.00 |
Total transmitter power for the cell, including multiple transmitters, in dBm (with up to two decimal digits). Value must be greater than 0. |
| Total Losses in Transmitting Path | total_tx_losses | Decimal | 0.00 | 2.00 |
Total losses in the transmitting path from the amplifier to the antenna, in dB (with up to two decimal digits). Value must be greater than or equal to 0 and less than or equal to 10. |
| Transmitting Antenna Gain | tx_antenna_gain | Decimal | -1.00 | 16.00 |
Transmitting antenna gain, in dBi (with up to two decimal digits). Value must be greater than or equal to -20 and less than or equal to 40. |
| EIRP | total_eirp | Decimal | 22.00 | 46.00 |
Total maximum effective isotropic radiated power (EIRP), in dBm, including multiple transmitting antennas (with up to two decimal digits). Value must be greater than or equal to 0 and less than or equal to 80. |
| EIRP per Subcarrier | eirp_per_subcarrier | Decimal | 3.43 | 32.22 |
Maximum effective isotropic radiated power (including multiple transmitting antennas) per subcarrier, in dBm (with up to two decimal digits). Value must be less than or equalt o the lesser of <total_eirp> and (<total_eirp> - (10*log(<total_subcarriers>)) + 3) for downlink link budgets. Value must be less than or equal to the lesser of <total_eirp> and (<total_eirp> - (10*log(<required_subcarriers>)) + 3) for uplink link budgets. |
| Receiving Antenna Gain | rx_antenna_gain | Decimal | 16.00 | 0.00 |
Receiving antenna gain, in dBi (with up to two decimal digits). Value must be greater than or equal to -20 and less than or equal to 40. |
| Total Losses in Receiving Path | total_rx_losses | Decimal | 2.00 | 0.00 |
Total losses in the receiving path from the antenna to the receiver, in dB (with up to two decimal digits). Value must be greater than or equal to 0 and less than or equal to 10. |
| Receiver System Noise Figure | rx_noise_figure | Decimal | 2.00 | 10.00 |
Noise figure of the receiver system - which could consist of an antenna (circuits), a transmission line, and a receiver - in dB (with up to two decimal digits). Value must be greater than or equal to 0. |
| Receiver Sensitivity | rx_sensitivity | Decimal | -90 | -100 |
Receiver sensitivity, in dBm, per subcarrier (with up to two decimal digits). Value must be less than 0. |
| Thermal Noise Power | thermal_noise_power | Decimal | -173.98 | -173.98 |
Thermal noise power, in dBm, per Hz (with up to two decimal digits). Value must be less than 0. |
| Thermal Noise Power per Subcarrier | thermal_noise_power_per_subcarrier | Decimal | -132.21 | -132.21 |
Thermal noise power, in dBm, per subcarrier (with up to two decimal digits). Value must be less than 0. |
| Total Noise Power per Subcarrier | total_noise_power_per_subcarrier | Decimal | -130.21 | -122.21 |
Total noise power (thermal & receiver), in dBm, per subcarrier (with up to two decimal digits). Value must be less than 0. |
| Fading Standard Deviation | fading_std_deviation | Decimal | 8.00 | 8.00 |
Standard deviation of the log-normal signal slow fading, in dB (with up to two decimal digits). Value must be greater than 0. |
| Cell Edge Probability | cell_edge_probability | Decimal | 0.75 | 0.75 |
Desired probability of receiving the signal at or above the receiver sensitivity at the cell coverage boundary. Report as a percentage (with up to two decimal digits). Value must be greater than or equal to 0.75 and less than or equal to 1. |
| Fade Margin | fade_margin | Decimal | 10.25 | 10.25 |
Signal slow fading margin required to deliver the desired cell edge reliability, in dB (with up to two decimal digits). Value must be greater than 0. |
| Penetration Margin | penetration_margin | Decimal | 0.00 | 0.00 |
Additional signal loss due to surrounding obstructions when the receiver is inside a building, in dB (with up to two decimal digits). Value may be null. If entered, value must be greater than or equal to 0. |
| Other Losses | other_losses | Decimal | 0.00 | 0.00 |
Any other unaccounted signal losses, in dB (with up to two decimal digits). Value may be null. If entered, value must be greater than or equal to 0. |
| Other Gains | other_gains | Decimal | 0.00 | 0.00 |
Other unaccounted gains, in dB (with up to two decimal digits). Value may be null. If entered, value must be greater than or equal to 0. |
| Total Margins | total_margins | Decimal | 11.25 | 15.25 |
Total net margins, in dB (with up to two decimal digits). Value must be greater than or equal to 0. |
| Maximum Allowable Path Loss | mapl | Decimal | 136.39 | 139.18 |
Maximum allowable path loss of the link, in dB (with up to two decimal digits). Value must be greater than 0. |
| Minimum Signal Strength | minimum_signal_strength | Decimal | -132.96 | -106.96 |
Minimum required signal strength at the receiver to deliver the specified performance targets (e.g., RSRP for 4G LTE), in dBm, per subcarrier (with up to two decimal digits). Value must be less than 0. |
Fixed Wireless Clutter Category Data
This file must contain records for each clutter category used in the link budget. The file must be in Comma Separated Value (CSV) format and match the specifications in the table below. All values are required unless otherwise indicated.
| Field | Header | Data Type | Example | Description / Notes |
|---|---|---|---|---|
| Clutter Category Number | category_number | Integer | 11 |
Numerical identifier, assigned by the filer, corresponding to each distinct clutter category. Value must be greater than or equal to 0. |
| Clutter Category Name | category_description | Text | Evergreen Forest |
Name or short description of the clutter category. Value length must be less than 256 characters. |
| Constant Signal Loss | constant_signal_loss | Decimal | 3 |
Constant signal loss used in propagation modeling for the clutter category, in dB, with up to one decimal place. Value may be null if the Variable Signal Loss value is not null. If entered, value must be greater than or equal to 0. |
| Variable Signal Loss | variable_signal_loss | Decimal | 3 |
Variable signal loss as a function of distance used in propagation modeling for the clutter category, in dB/meter, with up to one decimal place. Value may be null if the Constant Signal Loss value is not null. If entered, value must be greater than or equal to 0. |
| Model ID | model_id | Text | ITM-1A |
Unique identifier for the propagation model that has a list of clutter categories Value should correspond to a model_id value in the Fixed Wireless Propagation Model Details file. |