Can you tell me what the difference is between 4G and 5G?

To put it simply, a little more straightforward words is that 4 and 5 levels have a lot of broadband, but 5 levels are much larger than 4 levels, I remember the words response time is particularly short, basically no delay, this time than the 4 levels of huge advantages, in addition to the weapon also has its cushion, the current weapon of this base station ah, it's this radius is relatively small.

First of all, as the 5th generation of mobile communication technology, what is different from the previous is that if from 3G to 4G is a linear development, then from 4G to 5G is an exponential leap forward.

If we take Huawei's 5G CPE Pro (Balong5000 chip) released in 19 years as an example, its theoretical upload speed is 1Gbps, and the download speed is 4Gbps, so the overall rate of 5G reaches 50-100 times that of 4G, and I think most people should understand that quantitative change leads to qualitative change.

So what can we expect from such fast transmission speeds? With 5G technology in full swing, the first thing that will be changed is the cloud storage technology, faster speeds and shorter time, it is likely to drive the cell phone industry ushered in a huge change, when our phones may not need data storage function, whether it is uploading a 4K picture, or viewing a Blu-ray movie, can be completed instantly through the interaction with the cloud, which makes our data transmission become more convenient, more secure, even if the phone is lost, the phone will not be able to be used in the future.

Small cell phones and computers, as well as the Internet of Things, driverless technology and industrial interconnectivity of the manufacturing industry, relying on the transmission speed of 5G, bringing about a change of the times

The difference is three:

First, the biggest difference between 5G and 4G is that the network speed will be a lot higher than before. 4G network can reach up to 100 megabits per second, and 5G can reach 10GB per second. The first is that it is not a good idea to use the new technology to download a high-definition movie. The new 5G network will allow you to download a high-definition movie in as little as 1 second.

Second, the difference is that the delay of 5G network is small, about 1ms, compared with 4G will shorten the delay 30-50 times, so the real-time communication is very good. （

The third difference is that the carrier is different, and most of our cell phones use 4G networks, which don't support 5G, so if you want to use 5G, you'll need to replace your cell phone.

5G is faster than 4G and transmission speeds, 5G digital support for various industries, 5G network platform services, 5G excellent air port combination of comprehensive cloud, 5G unified standards will implement industry cross-border connectivity, improve the productivity of the whole society, vertical industries will show market refinement, fragmentation characteristics, support for different industries, users, sales of the digital transformation of the business model, and ultimately, industry support structure and consumer users to bring more benefits. 5G's business capabilities are stronger and more extensive than 4G.

Very different, the most basic communication rate, the use of communication bands

4G is the Internet. Connected people dealing with people. Based on this design. So you can see live streaming. Little videos. Something like that rise. 5G is the Internet of Things. What's being proposed is the Internet of Everything. Most typically self-driving cars. Tele-education. Telemedicine programs. And so on. The advantage over 4G is faster speeds. Lower latency. And better experience. Of course now, after all, is the high cost of the initial investment. Spread to our users accordingly will be quite expensive. This is the inevitable result. Think back to when 4G just started. The price was outrageously expensive. I remember that I also spit out that at that time. Only the tycoon can afford 4G Probably in the next year or two, the cost will slowly come down. Personal thoughts. I hope it will help you. Thank you

There is the simplest way to describe 5G

It is fast

Simply put, 5G is faster than 4G uploading and downloading speeds, with lower latency. 4G is a civilian-grade standard, and 5G is an industrial-grade standard. For ordinary people using cell phones, 4G is enough; 5G application scenarios are IoT, drones, remote surgery, and other device-to-device communications, which all require security, reliability, and almost no latency.

In terms of cost for ordinary people to use, you can rest assured that 5G will be smoother to use since, and the cost will not be much more expensive than 4G. For example, 4G will have a maximum spending limit, and if the cost reaches a certain amount, it will no longer continue to incur costs, and 5G will have the same setting. One of the assessment indicators for operators is to increase speed and reduce fees.

1G: This refers to the first generation of wireless telephony technology, mobile communications. It used analog signals at speeds of up to 2.4kbps, when big brother had no screen and could only make phone calls

2G (GPRS): this refers to the second generation of mobile technology. It uses digital telecommunication standards. The data rate is between 56-114kbps. 2G realizes the digitization of voice communication, and the feature phone has a small screen to send text messages.

3G (WCDMA/CDMA 2000/TD-SCDMA): refers to the third generation of cell phone technology. It offers data rates of 384kbps, so it's easy to browse websites and stream music.

4G, on the other hand, refers to the fourth generation of mobile technology, known as LTE (Long Term Evolution). It's the best of the bunch compared to 1G-3G, and is just as stable and fast as Wi-Fi in your home or office.

5G is the 5th generation of mobile communications technology, an extension after the 4G system. The first international 5G standard was laid down at the 3GPP meeting in San Diego on June 13, 2018, US time. Compared to its predecessor, 5G networks are characterized by three main features: very high rates (eMBB), very high capacity (mMTC), and very low latency (URLLC). We'll talk about the differences between 4G and 5G through its three specifics.

5G vs. 4G

High speed

As we all know, communication relies on electromagnetic waves, which have limited frequency resources, and different frequencies mean different speeds. Frequency resources are like carriages, the higher the frequency, the more carriages, the more information can be loaded in the same time. So the larger the frequency, the larger the bandwidth and the faster the speed.

Currently, our 4G uses low-frequency bands, which have the advantage of good performance, wide coverage, and the ability to effectively reduce the operator's investment in base stations to save money. However, the disadvantage is that more people use it, the "road" of data transmission will be congested and narrow phenomenon. Although the existing technology has been optimized, but the rate is still limited. The 5G uses high-frequency bands, and the use of high-frequency not only relieves the tension of low-frequency resources, but also makes the "road" wider and improves the bandwidth rate due to the absence of congestion and narrowing phenomenon. But limited by the propagation performance of high-frequency transmission, so a lot of high-frequency band frequency resources have not been used, it is 5G can be well utilized resources.

But how to solve the problem of propagation of high-frequency communications?

This will need to rely on large-scale antennas (massive MIMO), MIMO is "Multiple-Input Multiple-Output" (Multiple-Input Multiple-Output), multiple antennas to send, multiple antennas to receive. Allow me to find a schematic (probably like this):

High-frequency resources are very high frequency, the wavelength is very short, in the design of the antenna can do antenna arrays and the distance between them is very small, you can integrate antenna arrays in a small range. The increase in the number of antenna arrays can bring additional gain, combined with beam fouling, beam tracking techniques to compensate for high-frequency communication in the propagation of the limitations.

With these features, 5G delivers peak data download rates of up to 10Gbps. 4G delivers peak rates of roughly 100Mbps, a 100-fold increase in speed. Ideally, a user would be able to download a 1 Gigabyte HD video in a few seconds. 4K video requires a minimum download speed of 25 Mbps, which 4G can't deliver. Therefore, 4K video broadcasting is possible in a 5G environment. In addition, the demand for bandwidth for VR/AR is huge, 5G for VR and other virtualization to achieve possible. Just like the first picture in the article, 2G can see the novels of Cao Laojie, 3G can see the pictures of Cao Laojie, 4G can see the videos of Cao Laojie, and 5G can interact with Cao Laojie in VR.

High capacity

High-frequency millimeter waves can boost transmission rates, but high-frequency signals are hard to get through solids. As the transmission distance increases, the transmission rate will drop faster compared to the lower frequency band of 4G. To ensure efficient and stable transmission rates, more base stations are needed for stable signal transmission. 5G technology introduces small, low energy consuming micro base stations that can be installed and deployed anywhere in the city, such as street lights, signals, shopping malls, housing, etc. Each base station can be connected to other base stations from other base stations. Each base station can receive signals from other base stations and send data to users in any location. The signal is received evenly, the carrying capacity is large, the formation of ubiquitous network, to solve the shortcomings of the long-distance transmission of the high-frequency band is poor.

This also makes the Internet of Things a possibility. In the 5G network, in addition to smartphones, PCs and other common 3C products. More terminal devices can also be included in the network, such as smart furniture products that can be controlled through the network, such as smart sockets, smart air conditioners, smart refrigerators, and smart wearable devices. And in the field of IoT, different application scenarios. The needs of the network are not the same. Some terminal devices need a large amount of real-time data to quickly process feedback, while some terminal devices only need a small amount of data or a few bits of data transmission. It does not require any high speed response to the transmission, and may even update a small amount of data only in one or two months. For example, the water meter, electricity meter type of usage information display. Therefore, in a 5G network, it is necessary to automatically recognize the network requirements of device terminals and use different network bandwidths. When a small amount of data transmission, 5G intelligent identification using less energy-consuming narrow-band network for data transmission, thus effectively reducing energy consumption and use, to ensure that the terminal equipment of low-consumption long-time operation of the usability. Realizing the true Internet of Everything.

Low latency

Compared to 4G, 5G has been greatly optimized and adjusted on the existing technology architecture. In order to realize ultra-low latency, 5G starts with the access network, bearer network, core network, and backbone network.

While dramatically reducing air-port transmission latency, it minimizes the number of forwarding nodes and shortens the distance between nodes. Introducing network slicing technology to physically slice the network and divide it into N logical networks to adapt to different application scenarios. The core network control function is sunk, deployed to the edge of the access network, close to the user, reduce the transmission distance, reduce the delay.

4G network application servers are concentrated in the central server room, far from the terminal, the middle needs to go through a number of transmission nodes. 5G through the edge computing technology will be the access network and Internet services for the depth of the integration of the access network edge in the access network deployment of computing, processing and storage functions of the cloud computing equipment, build mobile convenient cloud, provide information technology service environment and cloud computing capabilities. It can reduce the forwarding and processing time during data transmission and reduce end-to-end delay.

Low latency makes driverless possible. The 5G network's low latency of 1ms makes it possible for autonomous driving to ensure safety on the road. We all know the time of Chongqing Wanzhou bus crash, if the bus was using 5G technology, equipped with intelligent monitoring and intelligent system management, when the vehicle is found to deviate from the normal trajectory, to rush out of the bridge embankment, the emergency formulation system through the low-latency characteristics of the 1ms in the braking, may not cause a tragedy.

4G realizes a significant increase in data rates and enters the era of mobile broadband, which accomplishes the Internet and changes people's lifestyles. Whether it is ordering, takeout, payment, etc. are changed by the mobile terminal, white-collar daily ordering, weekend sleep a lazy, hungry, beauty group, etc., the cell phone App on a healthy meal ordering, fast delivery door to door, online payment is fast and cheap, life is changed by the takeout, go out less; the convenience of online shopping, go to the brick and mortar, supermarkets have become less, direct online shopping to get it done.

4G changed life, and 5G will change society. It's going to give people a whole new media experience with virtual objects, avatars, and augmented situational information from VR/AR. It will also enter the era of the Internet of Things (IoT) and penetrate into every industry. Telematics, smart manufacturing, global logistics tracking systems, smart agriculture, municipal meter reading, and more. When 5G arrives, it will also be a time of social disruption. It will lead to a digitized, information-based smart world.

Before answering this question, let's first clarify the concept

4G refers to the fourth generation of mobile communication systems, and 5G is the fifth generation of mobile communication systems. 5G is an extension of 4G technology, and it is the upgraded version of 4G technology. This G is Generation, is the meaning of generation, do not understand for the flow of how many G that G

As for the difference between 4G and 5G is mainly three parts, corresponding to the 5G three major application scenarios

High-speed rate, on a word, fast. 4G download rate of 100 Mbps, while the 5G download rate theory will reach 10 Gbps, the 4G download rate will reach 10 Gbps, the 5G download rate will reach 10 Gbps, the 5G download rate will reach 10 Gbps, the 5G download rate will reach 10 Gbps.


These are the first time I've ever seen a Gigabit Ethernet connection, and I've never seen one. In practice, ideally, users can download a movie of about 1G in a few seconds. In the future, 5G high speed rates could make virtual reality technologies like VR possible.