Massive Machine Type Communication (mMTC) is one of the three primary use cases defined in IMT-2020 Vision which supports extremely high connection density of online devices. mMTC focuses on IoT applications which requires mass deployment of billions of low-cost, low-powered devices and sensors.
This particular use case is characterized by low bandwidth and infrequent bursts of data, requiring long-life batteries.
mMTC based applications are the use cases where low energy devices with low-data volume connect on a massive scale. Some of the 5G applications which come under this use case are :