I believe you all want to know, what is 5g? How fast is 5g technology? Why do you master the experience of the future 'super Internet' era? Today, we will introduce you to 5g common sense and learn it secretly!
1. What is 5g
What is 5G?
First, what is 5g? In short, 5g is the fifth generation communication technology.
5g has three characteristics: large bandwidth, low delay and interconnection of everything.
5g main features: the wavelength is millimeter level.
2. How fast is 5g
Qualcomm, the US chipmaker, believes that 5g can achieve 10 to 20 times faster browsing and downloading speed under actual (rather than laboratory) conditions. In other words, you can download a high-definition movie in about one minute.
We are talking about 5g network built on the existing 4G LTE network, just the first generation 5g modem; the 5g chip in the future is likely to be faster.
The independent 5g network can work at a very high frequency (such as 30ghz), and can easily achieve a browsing speed of more than gigabytes. But it's unlikely to happen in a few years.
3. How much faster is 5g than 4G
At present, the fastest 4G mobile network provides a network speed of about 45mbps (megabits per second), compared with 5g, which will reach Gigabit speed.
5g transmission rate will be 1GB / s, which is ten times faster than the current 4G speed. This means that it only takes 10 seconds to download a 1GB high-definition movie using 5g technology, while a trilogy of "Lord of the rings" with more than 70 GB of blue light is about 1 minute to download.
5g's large bandwidth transmission capacity, even if you watch 4K HD video, 360 degree panoramic video and vr virtual reality experience, will not be stuck.
4. What can 5g do
So, what can 5g do? It will really scare you.
5g will bring fiber-optic 'zero' delay access rate, at the same time, it will improve the network energy efficiency by a hundred times, reduce the bit cost by a hundred times, shorten the distance of intelligent interconnection between people and all things, and finally achieve 'all things within reach'.
5g can bring more unpredictable new business
In fact, in addition to the above, 5g can bring more new businesses that we can't predict. For example, 5g will bring more high-definition video and higher energy efficiency to driverless cars, AR / vr virtual reality, UAV working groups, etc., and make the city more intelligent Internet of things.
Generally speaking, if you are a gamer, after 5g, the delay time between pressing the controller button and the display effect on the screen will be shorter. Video playback on mobile terminals will be faster and more stable. Video chat picture quality will be clearer and smoother.
5. Is 5g radiation big
First of all, we can be sure that the radiation of 5g mobile phone to the body will not increase in the daily life scene. Mobile phone manufacturers have to go through all kinds of rigorous auditing and testing before listing new mobile phones, and they need to meet the relevant national standards to be listed.
The 5g band requires more intensive base stations, so it radiates a lot. This understanding is misleading. On the contrary, the radiation from 2G to 3G, and then to 4G base station is getting smaller and smaller. In the 2G era, there are dozens of kilometers of base stations, while in the 4G era, there are more base stations. Because of the power control, the denser the base station, the smaller the radiation.
6. 5g key wireless technology
So, what is the key wireless technology of 5g? It involves professional knowledge. Let's know.
MIMO system principle
5g key wireless technologies: large scale antenna, ultra dense networking, flexible duplex, full duplex, spectrum sharing, advanced modulation coding, terminal direct technology, full spectrum access, new multiple access, new multi carrier.
SDR: universal hardware + software can be upgraded.
MIMO: multi antenna transmission, multi antenna reception + increase channel capacity.
Ccfd: transmit and receive electromagnetic wave signals at the same frequency to improve the spectrum efficiency.
OFDM: orthogonal frequency division multiplexing.
7. How much is 5g mobile phone
Because 5g mobile phone supports more modes, systems and frequency points than 4G mobile phone, new technologies such as' millimeter wave 'MIMO multi antenna', chips, structural parts, RF components, etc., will increase the cost of hardware.
The 5g mobile phones will be put on the medium and high-end models, and the price is expected to be more than 5000 yuan. Looking back at the price of 4G mobile phones, it almost went down all the way. At present, 100 yuan mobile phones have fully supported 4G. In the 1-2 years after 5g commercial use, the number of models will increase rapidly, and the price of 5g mobile phones will also enter the 1000 yuan range.
8. When will 5g arrive
Most countries are unlikely to launch 5g services by 2020, but ooredoo of Qatar says it has already launched commercial services, while South Korea plans to start next year, when the three largest network operators in South Korea agree to start services at the same time. China is also striving to launch 5g business in 2019.
Meanwhile, regulators around the world have been busy auctioning spectrum to telecoms companies, which have been testing the new business with handset makers.
9. When will 5g mobile phone arrive
In order, 5g baseband chip is needed before 5g main processor chip and 5g mobile phone.
It is expected that there will be a 'trial' mobile phone around the middle of 2019, and a 'commercial phone' will be launched in the second half of the year, that is, you can buy a real 5g mobile phone. It is expected that 5g mobile phone brands and models will be gradually enriched after full commercial use in 2020.
10. What are the brands of 5g mobile phones?
Vivo, oppo, Huawei, glory, Xiaomi and other 'top brands' will be the first to launch 5g mobile terminals. As for which one will come first, it depends on which mobile phone brand the chip manufacturer supports strongly and cooperates closely. At the same time, it also tests the progress of product layout planning, maturity and mass production. First out does not mean strong R & D strength.
In addition, only a few chip manufacturers, such as Qualcomm, Huawei, MTK MediaTek, zhanrui and Intel, have the ability to research and develop 5g chips, and the right to speak at the time of IPO is concentrated in the hands of these chip manufacturers.
IPhone (Intel baseband): 5g is not supported next year, and the replacement will wait until 2020
Huawei (Huawei baseband): the first 5g mobile phone is expected to be released in the first quarter of 2019
Samsung, Xiaomi, oppo, vivo, moto (Qualcomm baseband): see flagship products in the first half of 2019
It's going to 2019, the era of great technological change. If you don't know what 5g is, it's hard to say. Therefore, everyone should understand the 5g basic knowledge sorted out above!