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  ITM1A  Unique identifier, assigned by the filer, for the propagation model used to generate the coverage data. 
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  20211018 
Vintage date of terrain dataset, with at least the year of the dataset entered. Value must match valid ISO8601 date format, YYYYMMDD. 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 ISO8601 date format, YYYYMMDD. 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). 
Model Validation  calibration_flag  Boolean Integer {1}  1 
The model has been validated and calibrated at least one time using ontheground and/or other realworld measurements taken by the provider or its vendor. Value must be one of the following codes:

Model Calibration Date  calibration_date  Date  20210905 
Most recent date that the model was calibrated. This value may be null. If entered, value must match valid ISO8601 date format including, at a minimum, the year and month, e.g.: YYYYMM[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 WGS84 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 WGS84 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 abovemeansealevel (AMSL), in meters Value must be greater than or equal to 100 and less than or equal to 6500. 
Model ID  model_id  Text  ITM1A 
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  PCS065150DH 
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  16QAM 2/3  16QAM 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 equal to (<total_eirp>  10log(<total_num_of_subcarriers>)) 
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 lognormal 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  ITM1A 
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. 