5G SRS Outdoor Dataset

Detailed Description

This repository provides datasets containing raw Channel Impulse Response (CIR) measurements collected from uplink Sounding Reference Signals (SRS) transmitted by a 5G CrossCall phone acting as the User Equipment (UE). Measurements were collected using two Radio Units (RUs) from VVDN deployed at the EURECOM campus located at coordinates [43.6144094, 7.0711747]. Each RU is equipped with four spatially distributed SISO directional antennas with a 50° 3dB beamwidth in azimuth and elevation. The dataset is designed to support research in wireless localization, positioning, channel charting, and AI/ML-based radio analytics. It provides synchronized CIR measurements together with accurate RTK-based ground-truth UE positions.

Antenna Placement

The local Cartesian coordinate reference is antenna 1 on RU1 with:

• Local coordinates: [x, y, z] = [0, 0, 2.2]
• GPS coordinates: [43.6139498, 7.0714626, 170]

RU1 — EURECOM South Terrace

RU2 — EURECOM North Rooftop

Dataset Structure

The dataset contains T samples, M antennas, and NFFT CIR indices.

{
    time: [T×1 double]                # recording timestamp in milliseconds
    lat: [T×1 double]                 # true latitude from RTK
    lon: [T×1 double]                 # true longitude from RTK
    alt: [T×1 double]                 # true altitude from RTK
    local_x: [T×1 double]             # converted local x coordinate
    local_y: [T×1 double]             # converted local y coordinate
    cir_real: [NFFT×M×T double]       # real part of CIR
    cir_imag: [NFFT×M×T double]       # imaginary part of CIR
}

Example: Load in MATLAB

time = h5read('datasetname.h5', '/time');