MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541123860 A) filed by Malla Reddy (MR) Deemed to be University; Malla Reddy Vishwavidyapeeth; Malla Reddy University; Malla Reddy Engineering College For Women; and Malla Reddy College Of Engineering And Technology, Medchal-Malkajgiri, Telangana, on Dec. 9, 2025, for 'energy efficient signal transmission framework for iot wearables.'

Inventor(s) include N. Manikanda Devarajan; Atluri Jhansi Rani; Dr. Lalband Neelu; Mr. S Vinod Kumar; and K. Prameela.

The application for the patent was published on Jan. 2, under issue no. 01/2026.

According to the abstract released by the Intellectual Property India: "The current invention reveals an all-encompassing Energy Efficient Signal Transmission Framework that is specifically designed to fit Internet of Things (IoT) wearable devices. In the fast-growing sphere of wearable technology, one of the most acute bottlenecks is the small size of the battery of a small-sized equipment compared with the high power demand of permanent wireless communication. Traditional transmission models typically have persistent connection or send a redundant packet of data whether the information is important or not and the channel quality is good resulting in a high rate of energy consumption and frequent recharge. The invention limits itself to these drawbacks by introducing a smart, context-aware middleware that dynamically controls the transmission parameters using data criticality, channel state information and the current energy budget of that device. This framework works through the incorporation of a thin pre processing engine that is placed on the microcontroller unit (MCU) of the wearable. The system does not just pass the raw sensor streams blindly; the system uses adaptive compressive sensing and delta-encoding schemes to remove noise and unnecessary data points locally. The system can therefore assess the worth of transmission based on the calculation of the Value of Information (VoI) of each possible data packet, to decide if the energy expenditure of the transmission is worthwhile. When the physiological or environmental measurements are within a safe and constant limit, the transmission is blocked or grouped together, hence, holding the high-power radio frequency (RF) transceiver in a low-power sleep state over long periods. In addition, the invention presents a cross-layer optimization protocol, which dynamically changes the physical transmission characteristics. The framework mechanism of the wearable and the gateway (leanhub) (i.e., smartphone or hub) automatically modulates the transmission power (Tx Power) and the Modulation and Coding Scheme (MCS) by tracking the Signal-to-Noise Ratio (SNR) and the Received Signal Strength Indicator (RSSI). An example is the transmission power to the smallest achievable with the user holding his/her phone, when the channel is noisy the watch will stop noncritical uploads to avoid packets being lost and thereby forced to resend them, which is very energy-intensive. The system can also be configured to communicate effectively with energy generation devices, e.g. thermoelectric generators or piezoelectric sensors that are common in wearables these days. The scheduling algorithm has got the property of Energy Awareness which implies it will dynamically adjust the duty cycle of data transmission with respect to the rate of the received harvested energy. This will guarantee that the device will be highly self-sustaining during high activity (high kinetic energy harvesting) as well as save stricter resources during down time, and will eventually make the wearable more operational than even the current industry standards."

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