Beamforming Measurement Data
============================

The provided measurement data originate from a 5G test system consisting of a base station (BS) with a beamforming antenna and user equipment (UE) with an omnidirectional antenna.

## System Description
The carrier frequency was set to 3.55 GHz, and the OFDM cell signal occupied 80 MHz.
The BS was equipped with a grid-of-beams antenna with 48 individual beams arranged in three rows and 16 columns.
The following table shows the **beam indices** for the given beam elevation (rows) and azimuth (columns) angles:

| El./Az. | -56.25° | -48.75° | -41.25° | -33.75° | -26.25° | -18.75° | -11.25° | -3.75° | 3.75° | 11.25° | 18.75° | 26.25° | 33.75° | 41.25° | 48.75° | 56.25° |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| **+10°** | 1   | 2   | 3   | 4   | 5   | 6   | 7   | 8   | 9   | 10  | 11  | 12  | 13  | 14  | 15  | 16  |
| **0°**   | 17  | 18  | 19  | 20  | 21  | 22  | 23  | 24  | 25  | 26  | 27  | 28  | 29  | 30  | 31  | 32  |
| **-10°** | 33  | 34  | 35  | 36  | 37  | 38  | 39  | 40  | 41  | 42  | 43  | 44  | 45  | 46  | 47  | 48  |

## Measurement Locations

The BS antenna was installed on a typical antenna mast covering one cellular sector. Measurements are available for three scenarios:

- Rural
- Suburban
- Urban

Further details on the three locations are available in [1]. These datasets have also been used in [2].

## Measurement Log File Content

A UE measurement sample is available on average every 0.76 seconds.
Multiple measurement drives were conducted for each of the three locations, indicated with an identifier.

### Base Station Position

File name: BS_Pos_*.csv

| Column | Description |
| ------ | ----------- |
| Latitude | GPS Latitude (WGS84) [°] |
| Longitude | GPS Longitude (WGS84) [°] |
| Altitude | GPS Altitude (WGS84) [m] above sea level |
| Azimuth | Antenna installation azimuth angle [°] (0°=north, 90°=east) |
| Tilt | Antenna installation tilt angle [°] (0°=horizon, -90°=ground) |
| Roll | Antenna installation roll angle [°] (clockwise) |
| MinRadius | Minimum cell radius for which reasonable results are obtained (also used to classify 'near' samples in the UE logs) |
| MaxRadius | Maximum reasonable cell radius |

### UE Log Files

File name: UE_Logs_*.csv

| Column | Description |
| ------ | ----------- |
| Timestamp | Timestamp [dd-mmm-yyyy HH:MM:SS.FFF] |
| Latitude | GPS Latitude (WGS84) [°] |
| Longitude | GPS Longitude (WGS84) [°] |
| Altitude | GPS Altitude (WGS84) [m] above sea level |
| ID | Measurement drive identifier |
| near | Indicates samples close to the BS antenna that may lead to implausible results [0,1] |
| NLOS | Non-line-of-sight to the BS antenna, manually labelled [0,1] |
| bIdx | Beam index of the serving beam |
| bAzi | Azimuth angle of the serving beam [°] |
| bEle | Elevation angle of the serving beam [°] |
| RSRP | RSRP [dBm] |
| SINR | SNR [dB] |
| BID1 - BID48 | Measured RSRP for each of the 48 beams |

## References

[1] A. Schumacher, R. Merz, and A. Burg, "3.5 GHz Coverage Assessment with a 5G Testbed," in 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), Apr. 2019, pp. 1–6. doi: [10.1109/VTCSpring.2019.8746551](https://doi.org/10.1109/VTCSpring.2019.8746551).

[2] N. Xu, S. Li, C. S. Charollais, A. Burg, and A. Schumacher, "Machine Learning Based Outdoor Localization using the RSSI of Multibeam Antennas," in 2020 IEEE Workshop on Signal Processing Systems (SiPS), Oct. 2020, pp. 1–5. doi: [10.1109/SiPS50750.2020.9195235](https://doi.org/10.1109/SiPS50750.2020.9195235).