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What are the characteristics of the 5G era?

The basic characteristics of 5G (1) As the speed of high-speed network increases, user experience and experience will be greatly improved. The network can face VR/UHD services without restrictions, and services that require high network speed can be widely promoted.

And use means that users can download one high-definition movie per second and may also support VR videos.

(2) Ubiquitous Network With the development of services, network services need to be all-encompassing and widespread.

Only in this way can we support richer services and be used in complex scenarios.

The ubiquitous network provides influence at two levels: broad coverage and deep coverage.

Extensive refers to the need for wide coverage in all places where we live in society. If 5G is covered, a large number of sensors can be deployed to monitor the environment, air quality and even landform changes and earthquakes, which will be very valuable.

Depth refers to the fact that although the network is already deployed, higher quality in-depth coverage is needed.

With the arrival of 5G, bathrooms, underground parking garages, etc. that previously had poor network quality can be widely covered with good 5G networks.

To a certain extent, ubiquitous network is more important than high speed. Just building a high-speed network with coverage in a few places cannot guarantee 5G services and experience. Ubiquitous network is a fundamental guarantee of 5G experience.

(3) To support large-scale IoT applications, low-power 5G must have power consumption requirements.

In recent years, wearable products have developed to a certain extent, but they have encountered many bottlenecks. The biggest bottleneck is poor experience.

Nowadays, all IoT products require communication and energy. Although communication can be achieved through various means, the energy supply can only rely on batteries.

If the communication process consumes a lot of energy, it will be difficult for IoT products to be widely accepted by users.

If the power consumption can be reduced, the user experience will be greatly improved and the rapid popularization of IoT products will be promoted.

(4) A new scenario for low-latency 5G is highly reliable connections for driverless and industrial automation.

For information exchange between people, a delay of 140 milliseconds is acceptable, but if this delay is used for driverless driving and industrial automation, it will be difficult to meet the requirements.

The minimum requirement for 5G latency is 1 millisecond, or even lower.

Self-driving cars require interconnection between the central control center and the car, and between cars. In high-speed operations, when a brake is applied, information needs to be sent to the car instantly for response, which takes about 100 milliseconds.

In a short time, the car will rush dozens of meters, which requires information to be sent to the car in the shortest delay for braking and car control responses.

This is especially true for drones.

For example, if hundreds of unmanned aircraft are flying in formation, very small deviations will lead to collisions and accidents, which requires information to be transmitted to the flying unmanned aircraft within a very small delay.

In the process of industrial automation, if the operation of a robotic arm is to be extremely refined and ensure the high quality and accuracy of the work, it also requires a minimum delay and the most timely response.

These characteristics are not so demanding in traditional human-to-human communication, or even human-to-machine communication, because human responses are slow and do not require the high efficiency and refinement of machines.

Whether it is drones, driverless cars or industrial automation, they all operate at high speeds and need to ensure timely information transmission and timely response at high speeds, which places extremely high requirements on latency.

(5) In traditional communications of the Internet of Everything, terminals are very limited. In the era of fixed telephones, telephone calls are defined by groups of people.

In the era of mobile phones, the number of terminals has exploded, and mobile phones are defined by personal applications.

In the 5G era, terminals are not defined by people, because each person may have several terminals, and each family may have several terminals.

(6) Reconstructing security The traditional Internet must solve the problem of information speed and barrier-free transmission. Freedom, openness, and full sharing are the basic spirit of the Internet, but what is built on the basis of 5G is an intelligent Internet.

The intelligent Internet is not only to realize information transmission, but also to establish a new mechanism and system for society and life.

The basic spirit of the smart Internet is security, management, efficiency and convenience.

In the construction of 5G network, security issues should be solved at the bottom layer. Security mechanisms should be added from the beginning of network construction. Information should be encrypted. The network should not be open. Special security mechanisms need to be established for special services.

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