MUMBAI, India, April 10 -- Intellectual Property India has published a patent application (202441074527 A) filed by Tejas Networks Limited, Bangalore, Karnataka, on Oct. 2, 2024, for 'resource allocation and frame structure of ambient iot.'
Inventor(s) include Sushmita Ghosh.
The application for the patent was published on April 10, under issue no. 15/2026.
According to the abstract released by the Intellectual Property India: "Resource allocation and frame structure of Ambient IoT Abstract This invention introduces an energy-efficient communication protocol 5 for Ambient IoT, integrating Slotted ALOHA with RF energy harvesting to enable reliable interaction between ultra-low-power, battery-less devices and 5G/6G base stations or relay UEs. Devices first harvest energy from a Carrier Wave (CW) signal, followed by a structured five-message exchange (Msg0-Msg4) handling synchronization, random access, data transmission, 10 and acknowledgments. Time-frequency resources are dynamically allocated based on device energy levels and random IDs, reducing collisions and improving throughput. Control signals use differential encoding for robustness. Each message is framed with a preamble and postamble, allowing the device to detect the start and end of the signal. 15 Padding is inserted before the preamble to ensure alignment with NR OFDM symbol boundaries. A Slotted ALOHA-based retransmission strategy enhances channel reuse. Eliminating dedicated RFID readers, this approach supports long-range, interference-managed communication, offering a scalable, low-latency, and cost-effective solution for massive 20 machine-type communication (mMTC) in next-generation Ambient IoT networks."
Disclaimer: Curated by HT Syndication.
