Abstract
The disclosed invention relates to a power-optimized system and method for managing missing block transmissions and status reporting during multicast Firmware Upgrade Over the Air (FUOTA) in Long Range Wide Area Network (LoRaWAN) devices (e.g., smart meters). After firmware upgrade image transmission from a Head-End System (HES) to the devices in a Class C mode, the devices temporarily switch to Class A mode and transmit missing block information and status information frames at randomized intervals within a configurable window, minimizing network collisions and reducing power consumption. Devices then revert to Class C mode to receive multicast retransmissions and complete the upgrade. The method also incorporates controlled handling of failure scenarios, such as session timeouts and verification failures, resulting in improved reliability and extended battery life for large-scale Internet of Things (IoT) deployments.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Duggirala, Praneetha; Mahapatra, Rajesh; and Bezawada, Murali, "Power Optimization & Interference Management for Multicast Firmware Upgrade Over LoRa", Technical Disclosure Commons, (February 05, 2026)
https://www.tdcommons.org/dpubs_series/9281