According to different application scenarios, networks, and technologies, IoT can be divided into: cellular IoT CIoIT, cellular IoT applications, and non-cellular IoT technologies and applications.

Cellular Internet of Things (CIoIT): A dedicated Internet of Things technology based on cellular networks, as well as the built networks, platforms and applications.
IoT applications based on cellular networks: IoT applications based on the characteristics of cellular networks such as 2G/3G/4G are not dedicated technologies and networks, nor do they have special network architecture and technology based on the particularity of IoT applications. processing.

Non-cellular IoT technologies and applications: Refers to all IoT technologies and applications that are not based on cellular networks. According to technical characteristics, it can be divided into dedicated IoT technologies, such as LoRa, SigFox, ZigBee, etc. And IoT applications based on public computer technology and networks, such as Wi-Fi, Bluetooth, etc.

Cellular IoT

The cellular IoT is a specially developed IoT technology standard system based on mobile communication networks, mainly including NB-IoT technology, eMTC technology and 5G massive Machine Type of Communication (mMTC) technology. NB-loT and eMTC face different application scenarios and are complementary. NB-loT focuses on low cost, wide coverage, large connection and long battery life, while eMTC meets the needs of IoT applications for voice calls, medium bandwidth rates, and mobility. Both NB-IoT and eMTC are the initial stages of 5G-oriented mMTC scenarios. The simultaneous advancement of NB-IoT and eMTC can meet the comprehensive needs of solving multiple scenarios.
Due to its low cost and wide coverage, NB-loT has an 8:2 relationship between the number of connections and eMTC. However, relatively speaking, the application scenarios in the eMTC network are more abundant, the relationship between applications and people is more direct, and the ARPU value of users in the eMTC network environment will be higher. The solution application scenarios of NB-IoT and eMTC hybrid networking will be more abundant. The application of NB-IoT technology involves static scenarios, such as smart meter reading, smart switches, and smart manhole covers. However, after the NB-IoT/eMTC hybrid networking, more interactive and collaborative IoT applications will be involved, such as product whole-process management, intelligent parking, financial leasing, smart greenhouses, animal traceability, forestry data collection, remote health, intelligent Street lights, air monitoring, smart home, etc.
non-cellular short-range communications
The main features of non-cellular short-distance communication technology: the communication distance is short, and the coverage is generally tens of meters or hundreds of meters; the transmission power of the wireless transmitter is low, generally less than 100mW; the working frequency is mostly free of charge and application. Common industrial, scientific, medical ISM bands. The range of short-distance wireless communication is very wide. Generally speaking, as long as the sender and receiver of the communication transmit information through radio waves, and the transmission distance is limited to a short range, usually within tens of meters.
With the development of electronic technology and the increase of consumer electronic products such as various portable personal communication devices and household appliances, people have a strong demand for information interaction between various consumer electronic products and with other devices. For people who use portable devices and need to engage in mobility work, they hope to provide mobile business users with various services through a small, short-range wireless network, and to communicate with anyone and obtain information at any time and any place. Personal communication has prompted the emergence of non-cellular short-range wireless communication technologies represented by Bluetooth, Wi-Fi, UWB 2.1 non-cellular short-range communication (UWB), ZigBee, NFC and other technologies.