Outdoor 5G Mobility Dataset: Uplink SRS, UE-Side Measurements, gNodeB Logs/Measurements and Application-Layer Traffic on POWDER
Authors/Creators
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1.
University of Utah
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2.
Washington University in St. Louis
Description
Dataset Description
Raw 5G uplink sounding reference signals (SRS) from a UE driving through the Merrill Engineering Building (MEB) parking lot, as received by a base station. The setup consists of a car driving along a preplanned route on the University of Utah campus with the UE's antenna and GNSS receiver mounted on the roof of the car. Two runs were collected where a 5G NR base station (on the roof MEB) received SRS from the mobile UE every 10ms. All SRS kept by the base station were recorded raw: the received resource elements on both receive ports, the reference sequences, the SRS configuration, and the frame, slot, and capture time. The UE logged its side of the link with Keysight Nemo Outdoor: time-stamped, GNSS-tagged layer 1 to layer 3 measurements and signaling, from radio measurements, link adaptation and throughput to RRC and NAS events.Data Collection Information:
| Time/Date | 2026-10-25, 19:16 to 20:16 UTC (13:16 to 14:16 local time, early afternoon) |
| Locations | Merrill Engineering Lot (40.769837, -111.846289), Exploration Way (40.769370, -111.843897), South Central Campus Drive (40.770076, -111.844937), North Campus Drive (40.771037, -111.843940), North Wasatch Drive (40.770648, -111.842728), University of Utah, Salt Lake City |
| Base station | ocudu gNB on a PTP-disciplined host; Benetel RAN650 radio unit; band n78, 3.42 GHz carrier, 30 kHz subcarriers, TDD DDDSUU + DSUU (5 ms) |
| Receive Antenna | L-com HG3517DP4-090 dual-slant panel, 16.5 dBi, 95° × 6.5°, two columns × ±45°; two ports = Rx 0–1; 16.3 m above the ground at the mast (1466.3 m NAVD88), on the Merrill Engineering Building's roof, south of the lot |
| Transmitter | Quectel RM520N-GL mounted on car dashboard, Antenna Taoglas TGX.04 mounted on car roof |
| GNSS Receiver | u-blox ZED-X20P GNSS, 10 Hz, used via Keysight's Nemo Outdoor |
| SRS Configuration | every 10 ms per UE, recorded every 40 ms; 2 Tx ports (cyclic shifts 0 and 4 of 8) on comb 2; 576 REs per port across 34.56 MHz |
| Snapshots | 29,514: run 1: 18,019, run 2 11,495 |
| Delay resolution | one tap = 1 / 34.56 MHz = 28.9 ns, 8.7 m of path length |
| Planned route | a sweep through the aisles of the Merrill Engineering Lot, then along Central Campus Drive and North Campus Drive and through the lot to the east. Run 1 3.3 km at 4.5 m/s on average (up to 11 m/s); run 2 2.5 km of the same route at 5.0 m/s (up to 11 m/s) |
Dataset Structure:
SRS files (run1_srs.h5, run2_srs.h5): the raw SRS snapshots, one file per run (18,019 and 11,495 snapshots). Each snapshot holds:
- Y [snapshot, Rx port, 576]: the received SRS resource elements on the two receive ports
- X [snapshot, Tx port, 576]: the reference sequence of each Tx port (NaN in the second row for snapshots with one Tx port)
- timing: timestamp_ns (gNB capture time, UTC), and the frame (sfn) and slot the SRS was sent in
- context: rnti, start_symbol, nof_tx_ports, and each port's first subcarrier (k0) and cyclic shift (n_cs)
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fixed SRS and cell settings (comb, cyclic shifts, subcarrier spacing, carrier frequency, SRS period) are stored as file attributes.
Files:
runs.zip
│── run1/
│ ├── run1_srs.h5 raw SRS snapshots
│ ├── run1.gpx GNSS track
│ ├── run1_nemo_data.csv UE drive-test log
│ └── gnb.log gNB configuration and metrics
│── run2/
├── run2_srs.h5 raw SRS snapshots
├── run2.gpx GNSS track
├── run2_nemo_data.csv UE drive-test log
└── gnb.log gNB configuration and metrics
pictures.zip
├── ru-mast_panels-facing-lot_with-RU.jpg the rooftop mast with the panels and the radio unit, facing the lot
├── antenna+gps.png the UE and GNSS antennas on the car's roof
├── rsrp_run1.png the RSRP of run 1 along the route
dataset_overview.png the three images above in one figure
Funding: This work is supported by the National Science Foundation under Grant No. 2346555 (CIRC: ENS/Grand: POWDER-ENS - Enhancing and Sustaining the POWDER Platform). Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.
Cite as: Mahnoor Fatima Saad, Dustin Maas, Muhammad Basit Iqbal Awan, Jacobus Van der Merwe, and Neal Patwari. (2026). Outdoor 5G Mobility Dataset: Uplink SRS, UE-Side Measurements, gNodeB Logs/Measurements and Application-Layer Traffic on POWDER [Dataset]. Zenodo. https://doi.org/10.5281/zenodo.23741918
Also cite POWDER: J. Breen et al., "POWDER: Platform for Open Wireless Data-driven Experimental Research," Computer Networks, vol. 197, 108281, 2021, https://doi.org/10.1016/j.comnet.2021.108281.
Files
dataset_overview.png
Additional details
Funding
- U.S. National Science Foundation
- CIRC: ENS/Grand: POWDER-ENS - Enhancing and Sustaining the POWDER Platform 2346555