The short video application that hangs around with vibrato and fast hands is becoming a way for more and more young people to entertain. 4G has become less and less able to meet the needs of us to quickly browse such videos. 5G is eager to come out. Just a few years ago, the three major operators announced the first batch of 5G pilot cities, and the footsteps of the 5G era are getting closer.
Mobile phone numbers are no longer necessary, social software is more dominantThe development of modern human society is accompanied by the development of communication technology. From the initial telegraph and telephone, to the modern mobile communication technology, it is the convenience of communication that accelerates the history. From the 2G in the early 1990s, the 3G in the late 1990s to the 4G that started around 2010, the evolution of the communications world is almost an era.
In the 2G era, most scenes are the connection between computers and computers; in the 3G/4G era, the transition to the connection between people began; in the 5G era, people and things, things and things will form a connection matrix, each person, every Everything will become a node on the Internet, exchange data with each other and form a large data network. This will fundamentally change our way of life and will also subvert the current production methods.
The most common feeling for ordinary users is that the peak rate of 5G is expected to reach the order of 10Gbps. In the 4G era, manufacturers or operators often announce that their network speed can achieve the highest rate of hundreds of megabytes, but this requires two prerequisites. First, there is only one user in the community. Second, the user has encountered random changes. The channel is in excellent condition. But in the 5G era, the 100 megabit rate can ignore these preconditions and be easy to implement.
Thanks to the rational use of spectrum resources, in the 5G era, we will enjoy a better online experience than the current 4G coverage and stability. In the vast majority of current 2G signal coverage, we can easily easily in the future. Download a movie in seconds and we will enter the era of full traffic.
Of course, calling and texting can also be done by using traffic. In this case, mobile phone contacts and mobile numbers are no longer what we have to use – users are more likely to contact each other through social software. Which app has the best experience and the widest coverage, and which one the user uses to connect with each other.
Under this circumstance, the social software company headed by Tencent will further consolidate its status as a king, and the operator's dominance over the number will be further weakened.
The premise of the full traffic era is that the tariff is cheap. In the 2G and 3G eras, people counted traffic. In the 4G era, the cost per unit of traffic dropped drastically. However, due to the rise of 4G high-speed and high-definition video applications, the demand for traffic has grown geometrically. The large drop in traffic costs did not reduce the total traffic expenditure of users, and the demand for traffic in many applications stimulated a substantial increase in total user traffic.
In the 5G era, according to the development rules of previous generations of mobile communication technologies, the network speed has increased by more than 100 times, and the demand for traffic by users will once again increase geometrically. Although the demand for traffic has increased geometrically, the total cost of actual user spending is not necessarily greater than in the 4G era. This is because, on the one hand, the speed of 5G is more than 100 times that of 4G, but the cost of building a 5G network by operators is not necessarily more than that of 4G networks. Therefore, the cost per unit of traffic must be greatly reduced; on the other hand, with the network The continuous improvement and the increase of users, whether it is voice or data communication, its tariff level is generally declining.
If the flow rate is cheaper than the price of cabbage, would you still look for WIFI nets everywhere? Remote automatic driving of vehicles dozens of kilometers awayDuring the 2017 World Mobile Congress, communications operators and car manufacturers jointly completed a remote driving demonstration. The demonstration is based on a smart driving car developed by a car manufacturer. It is equipped with a remote driving console in Shanghai, and the real car is far more than 30 kilometers away from Jiading. In the real 5G network environment, multiple HD cameras installed on the vehicle transmit the multi-channel HD video of the 240-degree driving angle to the remote bridge in real time, and the measured uplink transmission rate reaches 50Mbps.
On the remote bridge, the driver directly drives the multi-channel HD video returned. The movement of the steering wheel, brakes and throttle is also transmitted to the Jiading vehicle within 10 milliseconds. The timely transmission of high-definition video and the timely transmission of control signals make the driver feel like being in a vehicle dozens of kilometers away, and the driving operation can be easily and accurately performed. All of this is due to the large bandwidth and low latency of the 5G network.
Remote autopilot has a wide range of applications, especially in harsh environments and hazardous areas such as mines, garbage transport areas, ground compaction areas and other areas that can not be reached by people, can be remotely controlled, improve efficiency, and save manpower. At the same time, remote driving can also be used as a supplement to autonomous driving. For example, in a car rental and shared car scene, a driver can manage multiple cars and move the car from a remote area to a densely populated area by remote driving to improve vehicle utilization.
Also last year, a domestic telecom equipment supplier cooperated with universities to conduct a series of 5G network-based vehicle formation autopilot tests in Germany and China, and successfully completed multiple scenarios such as emergency braking, close tracking, and coordinated lane change. Demo.
In these scene demonstrations, two or more vehicles are driving in the same direction. The front vehicle is used as a pilot vehicle, and some people drive, and the rear vehicle is unmanned. When the front car is performing emergency braking, lane change, and turning, the control signal is transmitted to the rear vehicle through the 5G base station in real time, and the rear vehicle receives the signal command at a very low time delay, and timely makes a coordinated action with the preceding vehicle.
Field tests show that based on 5G high reliability and ultra-low latency, the end-to-end delay of the front and rear command transmission can be controlled to a minimum of 5 milliseconds, which greatly shortens the delay time of the rear vehicle, thus making the entire vehicle formation pace. Consistent. The safety distance between vehicles can also be reduced, directly reducing the fuel consumption caused by wind resistance, while ensuring the safety of the entire fleet. The use of 5G in high-density vehicle formations will significantly reduce fuel consumption and save labor costs for hiring drivers.
It’s not a problem to watch 8K video on your mobile phone wireless network.In the past year or two, with the reduction of 4G network tariffs, the demand for people to use video to play video is also developing rapidly, such as the recent popular short video applications such as vibrato and fast hands. Turning on recording, playing, and uploading at any time has become a favorite entertainment method for many young people.
But in the next 5G era, all kinds of video applications will also develop toward high-definition. At present, with the hardware of 4K video is very mature, 8K technology is more and more representative of the future development of video technology, 8K live broadcast is already in Brazil. The Rio Olympics will be commissioned, and Japan will use the 8K technology to broadcast the Tokyo Olympics in 2020.
In the development process, 8K video will inevitably put forward higher requirements for operators and even the entire industry chain. The 4K ultra-clearing service requires a stable bandwidth of 50 Mbit/s, and an average 40 Mbit/s 4G network cannot be satisfied. The 8K (3D) video still needs about 1 Gbps after 100-fold compression. The popularity of these services requires a new generation of wireless networks with better performance as support, and only 5G technology can satisfy them.
From the first generation to the fourth generation of mobile communication technology, it is surrounded by communication between people, and the true sense of smart life needs to realize the "Internet of Everything", not only the connection of people with these devices, but also Includes connections between these devices. Although the current 4G network can provide a relatively ideal network speed, but because of its limited capacity, it is not enough to support the Internet of Everything. The substantial increase in 5G network capacity provides conditions for the realization of "Internet of Everything".
In the 5G era, due to lower hardware costs such as sensors and modems, the network provides low-power, low-cost connectivity, and asset tracking will extend to more in-transit products. Imagine, in the future, you can know the detailed location of each online shopping package. It also enables logistics companies to achieve refined management, thereby improving the overall efficiency of the logistics industry.
In the 5G era, more infrastructure will be connected by mobile networks, such as street lights, water meters, and trash cans. The city's managers can accurately know the state of each infrastructure, such as which of the street lights is broken, which part of the water pipes is leaking, and which one is full, which is to improve the efficiency of the city and to facilitate people's lives. Undoubtedly significant.
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