Chapter 113 Communication Testing
At this time, whether it is in the snowy region of the Qinghai-Tibet Plateau, or on the Hulunbuir grassland outside the Saiwai, or in the windy sand of the Tarim Basin.
As long as there is a communication base station, you can directly log in to the Nanke Dream World through brainwave glasses.
In the twists and turns of the Yunnan-Guizhou Plateau, under the blue sea and blue sky of the South China Sea, in the bustling cities on both sides of the Yangtze River.
Countless testers with terahertz phones are making phone calls, texting, surfing the Internet.
Huang Tianci, who was in Baise City, took his mobile phone, selected a movie website on the Citizen's House, and clicked to download the just-released sci-fi movie "Mechanical Planet".
After paying, he clicked on the movie and appeared on his phone, almost no download time, and opened multiple web pages at the same time, and the Internet speed was still very fast.
In terms of traffic monitoring, it has almost reached a download speed of 300G per second, and the upload speed is about this speed.
At present, the 5G communication under development can theoretically reach 10G per second, but in fact it cannot reach this value, and Huawei's communication laboratory can achieve 400M per second.
As for the 4G communication currently in use, it is generally below 10M/s, while the wired optical fiber communication is about 1000M/s.
It can be seen that terahertz communication is more powerful than optical fiber communication, 4G, and 5G, and terahertz has not yet reached the limit, and its transmission speed is about 1T, that is, 1024G per second.
In fact, there is a huge problem with terahertz communication, that is, the road damage is serious, and the communication distance of the traditional [fo] will not exceed 10 meters.
However, Huang Mingzhe solved this problem, he found a special frequency band from the terahertz frequency band, and then excites a feature of this frequency band through power and encoders.
That is the characteristics of the ionospheric amplifier, this special frequency terahertz wave will be greatly amplified after passing through the ionosphere of the atmosphere, and can penetrate most of the air components, effectively reducing the problem of road damage.
In this case, it not only avoids the embarrassment of traditional communication satellites, but also is susceptible to the interference of atmospheric motion; Different from the helplessness of traditional wireless communication base stations, a large number of base stations must be arranged to ensure the communication quality.
In areas where there are no base stations, terahertz communication can still provide communication quality of about 30G per second; In the coverage area of the base station, the fastest communication quality of 360G per second can be achieved.
For example, Huang Tianci's current Gaoling Village, this base station can cover a radius of about 3 kilometers, but considering the obstruction of the mountain, it is estimated that it can only reach about half.
However, this problem is not unsolvable, relay stations can be built in various regions, and the terahertz communication jointly developed by Thinking Society and Huawei adopts two modes in parallel.
That is, communication satellites provide large-range communication, while ground base stations provide small-range high-quality communication, forming coverage without dead ends.
In addition to the large-scale base stations in the mountainous areas of Gaolingzhai, at this time, in the eastern metropolitan area, Guan, Huizhou, and Shanmei, micro-base station tests are still being carried out.
In an ordinary office building in Shanmei City, more than a dozen testers are testing the micro base station, which is about the same size as our common router, and can serve the surrounding radius of 50~20 meters after plugging in the power supply.
The micro base station can be directly connected to the computer and mobile phone, and can be connected to the large base station in series to achieve comprehensive coverage in the city.
"So fast!" The tester walks around the building with a terahertz phone, while another tester keeps recording data.
These data need to be fed back, as an improvement of the terahertz communication system, as the first generation of products there must be some problems, don't look at the laboratory is very perfect, in practical application, the situation is much more complicated than the laboratory.
"I found a problem, there is a certain amount of interference after being close to the electrical appliances, especially around the original 4G base station, the interference is very obvious."
"In addition, if it is a reinforced concrete wall, the barrier effect is stronger than that of a plywood wall, and there is almost no satellite signal in the underground parking lot and tunnel, so you can only rely on the base station."
"Another problem, the lack of memory on the phone, can also become a big problem."
One by one, the feedback was sent back to the joint operations center in Haicheng County, where Chen Wenna, Yu Chengdong, Wang Kedao of the Tower Company, and Fan Xinhang of Star Communications were discussing these things.
The tower company was originally a joint venture between China Mobile, China Unicom and China Telecom, but now the situation is different, and the citizens' trusteeship has injected capital into the tower company and holds 27.6% of its shares, becoming the largest shareholder.
After all, the Thinking Society and the Citizen Trusteeship Society are the initiators of teraherz communication, and Star Communications has become the fourth communication service operator in China, and also holds 30 terahertz communication satellites.
Even if you don't use a communication base station, Star Communications can also develop and grow, while the three giants of telecommunications, mobile and China Unicom can only tacitly enter this market by default.
Because they also need terahertz communications, this is the background of the successful acquisition of the Citizens' Trusteeship in the tower company, and both sides take what they need.
"Mr. Yu, your Huawei mobile phones still need to further adapt to terahertz communication!" Chen Wenna has already seen the problem of insufficient memory on the phone.
Yu Chengdong can only be helpless: "HiSilicon chip launched 12nm 64G memory last month, which seems to be insufficient. ”
He didn't expect the world to change so fast, the first two years everyone was blowing 5G communication, but now they have developed terahertz communication (6G), resulting in the level of some hardware can not keep up with the communication system.
In order to meet the needs of terahertz communication systems, it is estimated that T-level memory can be initially sufficient.
"I heard that SMIC has developed 128G memory, and Mr. Yu can consider it." Chen Wenna reminded.
"Hehe, I'll think about it." Yu Chengdong replied with a dry smile, of course he knew that SMIC had successfully developed 128G memory, but the problem was that this thing was very expensive, three times the price of 64G memory.
Obviously, he doesn't want to buy SMIC's chips, and Huawei also has its own chip company HiSilicon chips, so of course the order must be given to his son.
However, in this situation, after weighing the pros and cons, he still decided to buy a batch of high-end mobile phones, and ordinary mobile phones will be on the way for the time being.
The test lasted three days, and the four companies refined and adjusted the terahertz communication system according to the problems found during the test.
Testing and tuning will be carried out alternately, and they are striving to improve the terahertz communication system to the most perfect.
And each company is improving its own part while communicating problems in the process.
After all, the field of communication involves communication base station equipment manufacturers, communication equipment builders, communication service operators, communication terminal manufacturers, and Internet companies.
All aspects must be taken into account, and it is very likely that doing optimization alone will lead to problems in other parts, and regular communication is essential.
The scale and scope of the test is also expanding, and there has been gossip on the Internet, but there is no official release from each company.
The three giants of China Telecom, China Mobile, and China Unicom are also not disturbed by the air traffic control, and are now meeting to discuss how to follow up on terahertz communications.
For example, leasing communication satellite services to Star Communications, modifying the original communication protocol, traffic charging problems, and old users cannot use terahertz communication, etc.
These things are enough for them to have a headache for a while.