ISACSafety RF Exposure Compliance, SAR Monitoring & Beam Nulling

ISACSafety ensures human electromagnetic safety in multi-gigabit high-power 6G ISAC deployments, actively monitoring Specific Absorption Rate (SAR) limits and projecting real-time RF nulls around detected people.

ISACSafety Real-Time SAR Mitigation Architecture

ISAC Core: SAR Safety Core — Human Presence Tracking & Power Nulling

6G ISAC Nodes & Beamforming Subsystems

Human Radar Micro-Doppler Detector
Spatial EIRP Safety Governor
Dynamic Beam Pattern Nuller
ICNIRP 2020 Regulatory Engine
Continuous Multi-Band Exposure Log

Architectural Layers & Waveform Pipelines

Camada 1: Forma de Onda Duplo-Funcional e Banda Base (OTFS / OFDM-Radar / Fractional Fourier Transform / Ambiguity Function): Modulação OTFS e síntese fracionária de chirp alcançando interferência interportadora zero sob severos espalhamentos Doppler.
Camada 2: Massive MIMO e Frontends de Beamforming (140 GHz D-Band / True-Time-Delay (TTD) / Hybrid Analog-Digital Beamforming): Matrizes em fase ativas Sub-THz com mitigação de beam-squint, feixes de dados de comunicação e lóbulos de rastreamento radar simultâneos.
Camada 3: Processamento de Sinal Radar e Nuvem de Pontos 4D (2D-FFT Range-Doppler / MUSIC AoA / CFAR Detection / Micro-Doppler Extraction): Resolução subdecimétrica de alcance e velocidade, detecção CFAR e classificação micro-Doppler de marcha biométrica e hélices de drones.
Camada 4: Orquestração de Sensoriamento de Rede e 3GPP Rel-19 (3GPP Rel-19 ISAC Core / Sensing Function (SF) / Reconfigurable Intelligent Surfaces (RIS)): Redes de radar colaborativas sem células, alocação dinâmica de recursos tempo-frequência equilibrando SLA e tempo de revisita radar.

Sensing Telemetry & Benchmarks: <5 cm (Resolução de Alcance) | 0.1 m/s (Precisão de Velocidade) | <10 ms (Latência de Quadro Radar) | 3GPP Rel-19 (Padrão Global)

ICNIRP Human Exposure Limits & Real-Time Beam Nulling in ISACSafety

As 6G cellular networks push into higher frequencies (FR2 mmWave and FR3 upper mid-band) with massive antenna arrays and high equivalent isotropically radiated power (EIRP), strict human electromagnetic safety regulations must be observed. ISACSafety leverages integrated radar capabilities to identify pedestrian presence, human bodies, and biological targets, dynamically steering RF energy away while sustaining connectivity.

Core Engineering Areas

Real-Time Specific Absorption Rate (SAR) Calculation and Multi-Band Tracking — Real-time computational electrodynamics calculating localized SAR and whole-body power absorption across millimeter-wave and sub-THz frequencies.
Dynamic Spatial Beam Nulling for Detected Pedestrians and Bystanders — Using integrated radar echoes to detect human coordinates and synthesize deep spatial radiation nulls (>30 dB attenuation) toward people.
Continuous Multi-Band Exposure Logging and Regulatory Audit Interlocks — Cryptographically signed radiation safety telemetry and fail-safe power shutdown interlocks for urban small-cell base stations.