5G is the abbreviation of the fifth generation mobile communication technology. 5G is not an independent, new wireless access technology, it is a technology evolution of existing wireless access technologies (including 2G, 3G, 4G and WiFi), and some new complementary wireless access technology integration solutions The general term. 5G will be a converged network, providing high-speed, secure and free communication between people, people and things, and things and things, and truly opening up the Internet era.
The ITU defines three application scenarios for 5G: eMBB (Enhanced Mobile Broadband), mMTC (Massive IoT Communication), uRLLC (Ultra High Reliability and Ultra Low Latency Communication). The eMBB scenario is mainly to pursue the ultimate communication experience between people, corresponding to high-traffic mobile broadband services such as 3D/Ultra HD video; mMTC and uRLLC are application scenarios of the Internet of Things, and eMTC mainly reflects between objects and objects. Communication needs, for smart cities, environmental monitoring, intelligent agriculture, forest fire prevention and other application scenarios targeting sensing and data acquisition; uRLLC applications have extremely high requirements for time delay and reliability, such as vehicle networking, industrial control Special application requirements for vertical industries.
Although edge computing is an emerging field, it has some obvious advantages, including:
1- Real-time or faster data processing and analysis: Data processing is closer to the data source than to the external data center or the cloud, thus reducing latency;
2- Lower cost: Companies spend less on data management solutions for local devices than on cloud and data center networks;
3- Less network traffic: As the number of IoT devices increases, data generation continues to increase at record rates. As a result, network bandwidth has become more limited, overwhelming the cloud and creating larger data bottlenecks;
4- Higher application operational efficiency: As latency decreases, applications can run more efficiently and faster.