Direct bidirectional exchange of information across the most popular wireless devices using the 2.4 GHz ISM frequency band (e.g., IEEE 802.15.4, Bluetooth Low Energy, and Wi-Fi)


The invention is based on (i) the transmission of precisely timed energy bursts and/or gaps using standard-compliant data packets, and (ii) the use of the energy level of a channel (e.g., received signal strength information) to detect the transmissions of other devices with incompatible physical layer. It’s letting, for example, off-the-shelf Bluetooth Low Energy (BLE) and IEEE 802.15.4 (Zigbee) devices exchange information by transmitting standard-compliant data packets of different lengths on a pre-defined channel. This information is decoded and reconstructed using high frequency RSSI sampling and algorithms to distinguish between background noise and valid information.

Key Benefits

This technology enables a direct communication across popular wireless devices in the 2.4 GHz frequency band (e.g., IEEE 802.15.4, Bluetooth Low Energy, and Wi-Fi devices) without the need of gateways.


- Direct data exchange between smartphones/tablets (e.g., embedding a BLE radio) and smart sensors/actuators (e.g., embedding an IEEE 802.15.4 transceiver);
- Updating the firmware of smart objects (e.g., based on IEEE 802.15.4) using smartphones or tablets (e.g., embedding a BLE or Wi-Fi transceiver);
- Coordinating the frequency usage in the shared, unlicensed 2.4 GHz ISM band;
- Synchronizing the clock of heterogeneous wireless devices with incompatible PHY layer.

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