Chapter 299: Satellite base station module, the finance of major countries is in a hedging situation!
Deutschman, Shen Sen, and Yu Bicheng suddenly rushed back, causing Chen Xing to pause and say, "It's not too late, we just arrived."
"That's good. ”
Shen Sen breathed a sigh of relief.
The overtime work of the past two days has made them exhausted. They originally planned to finish dinner and go back to the apartment to rest early. Unexpectedly, someone reported that Chen Xing led someone straight to the information and communication laboratory.
The veteran Shen Sen knows very well that he can make up for it at any time, but the premise is that the leader Chen Xing must be satisfied.
While the two were talking, Ren Wanzhou looked carefully at Doichiman, Shen Sen and Yu Bicheng. These few were important engineers of the International Telecommunications Union (ITU), and Kunpeng Company couldn't ask for them.
At the same time, she also lamented that the United States took the lead in establishing the GCOT Global Telecommunications Alliance and took away a large number of Western camp engineers from the ITU International Telecommunications Union. Now Chen Xing is developing 5G networks and has taken away a group of engineers. This ITU International The Telecommunications Union also exists in name only.
While Ren Wanzhou was stunned, Chen Xing asked Doichiman: "Professor Doichiman, Chief Qian said that the satellite base station technology has been conquered, is it convenient for a demonstration?"
While speaking, Chen Xing glanced at Ren Wanzhou and Ren He beside him.
The meaning I want to express is very obvious, which is to show it to them.
Deutschman has entered his twilight years and is a well-informed authority in the field. He can naturally understand Chen Xing's subtext.
“Please come this way.”
Deutschmann took two steps forward.
I saw him coming to a piece of equipment and patiently explaining: "5G networks are extremely vulnerable to external interference, such as reinforced concrete walls, clouds, fog, rain, thunder and lightning."
"Of course. Well, these are not the most difficult to overcome. The most difficult technology to overcome for satellite base stations is distance."
He paused for half a second, took a breath and continued: "Low-orbit satellites, at least 200 kilometers. Up to 2,000 kilometers, and beyond that is a medium-orbit satellite. "
"What is the concept of 200 kilometers?"
"With the current ground base station construction technology, the maximum coverage is only 20 kilometers. It still needs to be built in an open area without obstacles, but the signal transmission and reception distance of our satellite base station is ten times that of the existing technology!”
The moment he said this, he suddenly changed his mind! He turned around and said with a hint of pride: "But we still overcame this problem!"
"Look at this design drawing." Deutschman picked up a few rough drafts on the table and handed them to Chen Xing.
Chen Xing took it and observed it carefully.
The satellite base station is not just one, but three satellite base stations. Although the draft is only a rough drawing, everything that should be drawn is drawn.
The first satellite base station, in the low orbit area, is responsible for receiving signals.
The second satellite base station, in the medium orbit area, is responsible for processing signals.
The third satellite base station, in the low orbit area, is responsible for sending signals.
Because there were drawn arrow instructions, Chen Xing understood it effortlessly, and Ren Wanzhou and Ren He also vaguely understood the principle.
After Chen Xing and others reviewed the draft, Deutschman continued to explain: "As you can see, our satellite base station is composed of several parts."
"Low-orbit satellite base station, A signal capture device is installed toward the ground end, which is commonly known as a satellite pot. It is responsible for capturing ground signals in an ultra-low orbit of 200 kilometers, and then uses it as a relay station to send the signal to the satellite base station in the middle orbit. "
"Anyone who has studied geography knows that the thermal layer is above 85 kilometers. The air here is thin, the ultraviolet radiation is intensified, there will be no clouds and lightning, let alone rain, so there are no factors that interfere with the signal. ”
"When the signal is captured by a medium-orbit satellite, it will analyze it using high-speed algorithms and send the signal to the third satellite. Since then, data upload, data processing and data download have been completed, forming a network."
After Doichiman's narration, Chen Xing has roughly understood the principle.
The first low-orbit satellite is equivalent to the current base station on the ground. Its function is to receive signals and send them out.
The second medium-orbit satellite is an ordinary communication satellite, responsible for receiving signals, processing the signals and sending them back to the ground.
For a 4G network, two satellites are enough, but the millimeter waves of the 5G network are too delicate and require the cooperation of a third satellite base station.
The third low-orbit satellite is equivalent to a magnifying glass, receiving data signals from medium-orbit satellites, amplifying the intensity of millimeter waves, and allowing them to return to the ground smoothly.
Just like holding a magnifying glass in summer, you can focus the scattered sunlight into a point to achieve the effect of concentrated beam.
“What a genius idea.” Ren Wanzhou couldn’t help but admire in his heart. Deutschman is worthy of being the founder of the fourth generation of information communications, with top-notch ideas and thinking.
“I have a question, and I would like to ask Professor Deutschman.” At this moment, Ren He, the general manager of Kunpeng Company’s base station construction, took a step forward and expressed his doubts:
“What I want to ask is, when building such a satellite base station module, taking a group of three as an example, what is its actual coverage?”
The construction of base stations does not just require access to the Internet, there are also cost issues to consider.
Like the base stations built by Kunpeng Company, the macro base stations are quoted from 1 million to 3 million, and the micro base stations are also available in the hundreds of thousands. The coverage area of the two in the city is only a few kilometers. You can just find an intersection and transfer. You can see the base station antenna box when you turn around.
Chen Xing is also curious.
Technology is nonsense regardless of cost.
If the construction coverage area is only a few kilometers, but it takes three satellites to build a network, this is a mess. Even if Longxing Technology is sold, it will not be able to build this network.
“I don’t know yet, but according to my estimation, three satellite base station modules can build the cellular network in eastern Guangdong Province.”
“Three?”
Ren He was no longer calm.
Even Ren Wanzhou flashed a hint of surprise.
This means that nine satellites can allow the people of the entire eastern Guangdong Province to experience the 5G network. The coverage area is a bit too large!
While Chen Xing was surprised, he was already silently calculating the launch cost.
With the launch vehicle technology currently exposed by Longguo, it can send two satellites at a time, nine satellites, six low orbits and three medium orbits. It needs to launch five launch vehicles. The single cost is as follows At 50 million, 250 million can complete network coverage in eastern Guangdong Province.
Longguo has 34 provincial-level administrative regions. Based on an average of 250 million, it means that Longguo will need 8.5 billion to build comprehensive 5G network coverage.
It costs 8.5 billion to cover the Dragon Kingdom. How about covering the whole world?
“Astronomical figures.”
Chen Xing sighed silently in his heart.
He didn’t dwell too much on it, because this was just his rough estimate, and he hadn’t asked about the cost of the launch vehicle. Maybe he didn’t need so much money at all.
Faced with Ren He's surprise, Deutschman smiled and said: "This is the best arrangement to ensure network speed. If it is only a 4G network, a single set of satellites can cover it."
The base station is suspended 200 kilometers above the head. Its reception range is like a person standing on the top of a mountain, and the field of vision will naturally be wider.
In order to let Chen Xing and others understand the satellite base station more intuitively, Deutschmann also demonstrated it with laboratory instruments.
After figuring out the principle and witnessing the demonstration again, Ren Wanzhou nodded slightly and exclaimed: "This idea is so genius. Perhaps only Professor Deutschmann can come up with it. This is a masterpiece that changes the existing base station pattern. I found it I salute you from the bottom of my heart.”
“No, no, no.”
Deutschmann waved his hands repeatedly and looked at Yu Bicheng beside him: “This is not just me. The credit belongs to the entire team. It was actually Yu Xiaoyou who first thought of it, and I just perfected it."
"It was all taught by Professor Deutschman."
< br>Yu Bicheng also waved his hand.
Although he is usually careless and has the energy of a young man, he still respects the seniors in his field very much.
In addition, he has not forgotten the first rule of scientific research, which is not to compete with his predecessors for merit.
No matter which field you are in, you can go a step further by being sociable. Talents with low EQ, if they don’t meet Bole, will often lament in the corner that they are full of talents but have no use. Chen Xing saw the two people's "concession", and he didn't have the money to bother him. He glanced at Shen Sen and Qian Yu and asked, "Are you sure there is no problem with this technology?"
< br>
In addition to further confirmation, his words were also meant for Ren Wanzhou, because currently Kunpeng Company only has the corresponding base station equipment, and they need to build the prototype of the satellite base station.
Qian Yu and Shen Sen looked at each other. After making eye contact, they both said in unison: "In terms of theory, the technology has matured."
"That's okay." Chen Xing looked at Ren Wanzhou and said, "Communication The technical conditions have matured. Wanzhou, when do you think the prototype of the satellite base station will be built first? "
According to Chen Xing's idea, Kunpeng Company is responsible for the base station signal part of the satellite base station. As for the satellite part, Chen Xing We have already discussed it with Zhao Chenguang and just take it directly to the Chauncey Rocket Launch Center for assembly.
Don’t think that the Changxi Rocket Launch Center only launches rockets. It also owns the Changxi Satellite Research Base.
“The principle of this base station satellite is not complicated. The specific time to build the prototype depends on the actual situation.” Ren Wanzhou did not give an exact time because it was the first time to build a base station satellite and she wanted to leave room for herself. .
“Just two days.”
Ren He suddenly said.
“Two days?”
Chen Xing’s pupils flashed with surprise.
Ren He nodded and responded: "Three days at the latest. The base station part is not very complicated. I think the difficulty should be the satellite part."
"We have a way to solve the satellite part. Let's do this. Chief Engineer Ren, leave your contact information with Chief Qian. If you have any technical problems, keep in touch at any time."
Chen Xing introduced the two of them.
“What you want is what you want.”
“I’ll scan it for you.”
Qian Yu and Ren He added WeChat.
After knowing the principle of the satellite base station and the specific manufacturing ideas, Ren Wanzhou and Ren He did not think about staying too long, and said one after another:
"In order to catch up with the progress, we will go back first. , I’ll come back to visit Mr. Chen in two days.”
“I’ll say goodbye to Mr. Chen first.”
Facing the two people’s farewells, Chen Xing also nodded slightly and said, “Be careful on the road. If you want to know more, please contact Chief Qian or me directly.”
“Okay.”
After a brief polite exchange, Ren Wanzhou and Ren He took the elevator, left the R&D building and headed to the parking lot.
Just after returning to the car, Ren Wanzhou looked at Ren He, the driver, and asked with some confusion: "Can the base station part be completed in two days?"
"Work overtime, maybe you can ." Ren He started the vehicle lane.
He was actually holding his breath in his heart. He worked hard to build the Pakistan Railway Base Station brick by brick. Those grandsons in the West blew it up whenever they wanted, and even injured his people. After he came back, , the more he thought about it, the more frustrated he became.
Now that he has the opportunity to retaliate indirectly, he will not let go of this opportunity.
“Buzzing——”
His phone suddenly vibrated twice.
While driving with one hand, Ren He took out his mobile phone to check WeChat messages.
It was a technical document sent by Qian Yu. After briefly scanning it, he put down his phone and concentrated on driving back to Kunpeng Base.
……
And at the same time.
The other side.
New York, USA, on the other side of the ocean.
Due to the time difference, when Dragon Kingdom was shrouded in darkness late at night, a new day had just begun here.
New York Exchange.
Stockholders are already in place collectively.
They are enthusiastic and full of confidence in the stock market.
Not long ago, the Federal Reserve Bank of America once again announced an adjustment in deposit interest rates, from a maximum of 5% to 7%. This made the global capital flow back even more fiercely. In just one hour, trillions of dollars inflowed in. America.
Where will the money go?
Stock market!
Will money be copied when placed in the bank?
The answer is no!
The interest that depositors receive is basically a small part of what the bank earns from investment.
After being pointed out by financial bloggers, instead of withdrawing money, American investors invested their money in the stock market because they knew very well that the influx of large amounts of money would inevitably cause the stock market to rise continuously.
As expected.
As rice stocks open again.
NVIDIA?
Rising!
Apple?
Rising!
Gaotong Company?
Rising!
Unlike the stock markets of other countries, the stock market of rice stocks did not fall, but only surged. The two formed a sharp contrast.
The continuous surge in rice stocks has also made foreign investors unable to help but feel excited. They converted their investments into US dollars, which intensified the return of US dollars.
No one knows when this farce will end, but what is certain is that now all fools can make money in rice stocks.
……
Longguo Securities Regulatory Commission.
Village chief Xiao Gang has not slept for two days. When he saw rice stocks rising sharply again, he finally recognized the reality.
The U.S. dollar's interest rate hike is not just about meat, it is about destabilizing global finance and making the world pay for the United States.
What exactly does it mean?
The Asian financial crisis in 1997 was caused by the inflation of the U.S. currency, which led to the collapse of the global financial system.
After the global stock market plummeted, Wall Street giants bought a large number of high-quality assets at low prices, such as Korean Star Group and TSMC...
Now they are making a comeback, and they have also raised the interest rate to 7%. First The day is so difficult, and it will be the next day soon. Xiao Gang really doesn't know how to save the city, unless there is a big flood...
In addition to the helpless mayor of the China Securities Regulatory Commission, the president of the Bank of China also has a headache.
The increase in U.S. dollar interest rates caused the outflow of funds. In less than two days, hundreds of thousands of people exchanged U.S. dollars for foreign exchange.
Although it is clearly stated that it cannot be used for investment, but someone entrusts the money when they go out, how do you supervise it?
The most important thing is that the US dollar interest rate hike has also led to the withdrawal of foreign funds from the stock market. Now if Longguo retail investors want to take out their money, the Bank of China can only lower the deposit interest.
One side raises interest rates and the other side cuts interest rates, forming an arm-wrestling hedging situation. Now it really depends on who can't bear it first.
(End of this chapter)