Fixed Wireless Broadband Supporting Data

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

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.
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).

Model Validation calibration_flag Boolean Integer {1} 1

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 one of the following codes:

0
False
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:

1
Urban
2
Suburban
3
Rural
0
Other

 

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:

101
802.11b
102
802.11a
103
802.11g
104
802.11n / WiFi 4
105
802.11ac / WiFi 5
106
802.11ax / WiFi 6
120
802.11ad
121
802.11ay
130
802.11ac-derived OFDM
140
802.16
201
OFDM Proprietary
401
4G LTE (3GPP release 8)
402
4G LTE (3GPP release 9)
403
4G LTE (3GPP release 10)
404
4G LTE (3GPP release 11)
405
4G LTE (3GPP release 12)
406
4G LTE (3GPP release 13)
407
4G LTE (3GPP release 14)
501
5G-NR (3GPP release 15)
502
5G-NR (3GPP release 16)
503
5G-NR (3GPP release 17)
0
Other
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.

 

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:

U
Uplink
D
Downlink
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:

101
802.11b
102
802.11a
103
802.11g
104
802.11n / WiFi 4
105
802.11ac / WiFi 5
106
802.11ax / WiFi 6
120
802.11ad
121
802.11ay
130
802.11ac-derived OFDM
140
802.16
201
OFDM Proprietary
401
4G LTE (3GPP release 8)
402
4G LTE (3GPP release 9)
403
4G LTE (3GPP release 10)
404
4G LTE (3GPP release 11)
405
4G LTE (3GPP release 12)
406
4G LTE (3GPP release 13)
407
4G LTE (3GPP release 14)
501
5G-NR (3GPP release 15)
502
5G-NR (3GPP release 16)
503
5G-NR (3GPP release 17)
0
Other
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:

F
FDD
D
TDD
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:

1
Urban
2
Suburban
3
Rural
0
Other
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 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 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.

 

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Updated 7/26/2022
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