Meaning
Operating parameters that define the electrical energy drawn by a cellular transceiver during different phases of wireless activity govern the battery life of remote telemetry installations. Analysis of LTE Cat-M1 power consumption must account for the active transmission bursts and deep sleep intervals that make up the device profile. Because these states have highly varied current demands, optimizing each phase is critical for achieving multi-year battery operation.
Active States
Transmitting data requires the highest current draw, with peaks reaching several hundred milliamperes depending on the output power and signal quality. When the transceiver is receiving data, the current is lower but still significant. Reducing the size of transmitted packets and shortening the time spent in active states are the primary methods for reducing overall consumption.
Sleep Modes
Deep sleep states represent the lowest current draw, often falling to a few microamperes. Implementing extended discontinuous reception and power saving mode allows the transceiver to enter these low-power states without losing registration. This management is essential for preserving the battery during long periods of telemetry inactivity.
System Evaluation
Measurement of the current profile over a full connection cycle is required to evaluate the true energy footprint of the module. This evaluation must be performed under typical signal conditions, as poor signals force the module to transmit at higher power. Designing a power supply that can handle these transitions ensures system stability and extends battery life.
