6G • RAN
REM (Radio Environmental Map)
3D Digital Radio Environment Twin
A live, high-resolution 3D digital map of urban electromagnetic propagation, reflecting surfaces, interference sources, and clutter in real time.
Technical Explanation
A 6G Radio Environmental Map (REM) is a live, geo-referenced spatial database that tracks electromagnetic signal strength, channel fading statistics, building material reflection coefficients, and localized interference across an entire city. Fed continuously by ISAC radar reflections and user device telemetry, the REM serves as the cognitive brain for 6G base stations, allowing them to route beams around skyscrapers and predict coverage holes dynamically.
Key Functions
- Real-time geo-referenced database of 3D urban electromagnetic propagation
- Tracking live building reflection coefficients, blockage obstacles, and interference hotspots
- Assisting AI beamforming engines to compute optimal bounce paths off walls and RIS
- Dynamic spectrum sharing coordination avoiding harmful interference to incumbent users
- Fundamental data source powering the 6G Core Digital Twin Network (DTN)
Specifications
ETSI TR 103 588, ITU-T Y.3090, 3GPP Rel-19
Interfaces
REM-APINdtn-Spatial
Related 6G Concepts
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