Which is the long-distance cellular communication protocol for the Internet of Things?

The Internet of Things (IoT) refers to the technology that connects all things with a network through sensor detection technology, digital signal processing and transmission technology. tightly connected network. The Internet of Things is an information carrier based on the Internet, traditional telecommunication networks, etc. It allows all ordinary physical objects that can be independently addressed to form an interconnected network.

letter of agreement

On July 13, 2021, the Internet Society of China released the "China Internet Development Report (2021)", and the market size of the Internet of Things reached 1.7 trillion yuan, and the market size of artificial intelligence reached 303.1 billion yuan.

When it comes to the Internet of Things, we have to mention the "language" needed for the interaction of the Internet of Everything, also called the protocol. In communication, the communication protocol is extremely important, and it is the rules and agreements that the two parties must follow to complete the communication. . With the continuous development of the Internet of Things industry, there are more and more types of protocols between them. Today we will talk about the long-distance cellular communication protocols that are very common in the Internet of Things.

mobile communication protocol

Long-distance cellular communication protocols are mainly divided into 2/3/4 generation mobile communication protocols, also known as 2G/3G/4G, which should be the most familiar protocol, so I won’t explain too much here.

NB-IoT protocol

In addition, there is the narrowband Internet of Things (NB-IoT) protocol. So far, NB-IoT has become an important branch of the Internet of Everything. NB-IoT started with cellular network technology, but consumes extremely low bandwidth (about 180kHz), which can It is directly deployed in GSM network, UMTS network or LTE network. Therefore, the deployment cost of NB-IoT network is extremely low and the implementability is extremely strong. NB-IoT is mainly used in low-power wide-coverage networks such as wireless meter reading. It has the characteristics of wide coverage area, large number of connections, low cost, and low power consumption.

The scenario applications brought by the NB-IoT network include smart parking, smart fire protection, smart water, smart street lights, shared bicycles, and smart home appliances and other applications with a small amount of data.

Fifth Generation Mobile Communication Technology

5G technology, also known as the fifth-generation mobile communication technology, is the latest cellular mobile communication technology so far. Its peak theoretical transmission speed can reach 20Gbps, 2.5GB per second, which is more than 10 times faster than the transmission speed of 4G network. On November 16, 2021, at the press conference on the "14th Five-Year Plan" information and communication industry development plan held by the Ministry of Industry and Information Technology, Xie Cun, director of the Information and Communication Development Department, said: At present, my country has built more than 1.15 million 5G base stations, accounting for 5G in the world. More than 70%, it is the world's largest and most technologically advanced 5G independent networking network, so the 5G network has great development prospects.

5G networks are currently mainly used in AR/VR, Internet of Vehicles, smart manufacturing, smart energy, wireless medical care, wireless home entertainment, networked drones, ultra-high-definition/panoramic live broadcast, personal AI assistance, smart cities, etc. Places with low traffic delay, but high cost requirements.

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