Metropolis: My IQ is 300

Chapter 143

After returning to China, Jiang Xiaodong faced a lot of invitations, but this time, Jiang Xiaodong chose to deal with it by himself and didn’t hand it over to anyone.

The final result is that Jiang Xiaodong hopes to continue studying.

And Chen Fan left a topic for these students.

“Let’s study the use of physics, or you can study the 5g technology. If it succeeds, what should you do? Use your imagination.”

Everyone is a little puzzled, this subject is a bit interesting.

Assuming the existence of 5g, doesn’t that mean?

“Teacher, are you going to think about 5g?”

“Yes.”

After speaking, Chen Fan was impressed.

Several people moved into Qiu Hua’s company.

Qiu Hua took Chen Fan to make a simple observation on the company’s side, and said: “This is what you see and my wealth. In fact, the whole world can make mobile phones. Exquisite, then there are a lot of arguments. I think what I am doing now should be at the forefront of the country.”

“Well, what’s the battery?”

‘All replacements have been completed, the mobile phone has been fully upgraded, and all the products you can imagine have been improved. Because of these technologies, after the completion of them, I really can’t think of how much shock it will cause, you know, I The first time I saw a transparent mobile phone, and the first time I saw a mobile phone that can be played casually, I knew that carbon nano brought new life to the mobile phone. ’

“What about 5g?”

Alas, Qiu Hua said helplessly: “I can’t do anything about it. You have to understand that 5g does not mean that it can be processed. Algorithm breakthroughs are very difficult. Your previous technologies may change the world, but This is not obvious enough, the current 5g is really fierce.”

Chen Fan nodded, did not say anything, but gave Qiu Hua a box.

“In the future, I think you can use it.”

“What do I need to learn?”

“Learn how to use it, maybe you can use it in the future? If this technology really appears, who will you be the enemy?”

“Me? Everything you can think of, so I don’t suggest you come and mix this matter, I just deal with this matter.”

Chen Fan shook his head and said, “220 old people told me that he is not in a hurry, but I am anxious. I want to deal with your 5g technology quickly, and then go on a business trip with the old man to find some substances and found it. Maybe, I can really accomplish that thing in my heart.”

“what?”

“I plan to have a piece of land of my own, which is very big, and this piece of land is the kind that nobody really wants.”

Damn it.

Qiu Hua probably knows what Chen Fan plans to do.

That’s incredible.

Chen Fan and everyone gathered together. They chose the dormitory of Qiu Hua’s company to live in, and eat in the cafeteria.

Several people in the research group sat chatting together.

“1) Optimized waveform and multiple access based on OFDM

2) Realize scalable OFDM interval parameter configuration

3) OFDM windowing improves multiplex transmission efficiency

4) Advanced new wireless technology

5) Flexible frame design

6) Ultra-dense heterogeneous network

7) Network slicing

8) Self-organization of the network

9) Content distribution network

10) Device-to-device communication

11) Edge computing

12) Software-defined networking and network virtualization

There are a total of twelve, which we hailed as twelve problems, and now, we have dealt with four of them, and the remaining eight still have to be dealt with. ”

“Technology is universal, right?”

Wang Long took a bite of his meal and said, “Yes, you are right. This technology is being studied all over the world, academically, and countless people are discussing it. It can be said that if anyone really masters this technology, who That is, the right to information is mastered. ’

“For example?”

“It has been used for a long time in China to solve the problem of foreign monitoring, and now 5g can let us turn the object-oriented and achieve our goal,”

Chen Fan nodded his head, divided some of the food with him, and said, “I’m done, I’m in charge of five of them, and you are in charge of three.”

“This, are you sure? The amount of calculation required here is relatively large.”

“It’s okay, don’t worry.”

Wang Long nodded.

Wait, no, you are only sixteen years old. When you grew up, why did you give me these foods?

Wang Long took a bite, vomiting, this time the aunt’s craftsmanship has dropped.

When Qiu Hua returned home, his wife’s belly had gradually risen. Qiu Hua looked at his wife and the child in the belly.

“Tell you one thing.”

“you say.”

Qiu Hua said: “I will give you a box, and you will take it everywhere in the future. If something happens, open it as soon as possible. Remember, you must remember, protect yourself, and protect your children.” 0

“What’s wrong? Is the 5g research going to make a breakthrough?”

“Well, to a large extent, it is about to break through. Chen Fan joined in. I really can’t think of any reason. Chen Fan was unsuccessful. This person is too strong. He even planned to bring Cao Yuan to him. This matter will be dealt with.”

“So anxious?”

Qiu Hua hugged his wife and said, “It is the future and the future. I guessed what Chen Fan wants to do. I guessed that his next step should be genetic modification, which is to challenge the natural growth cycle. If he succeeds, it will be very It may be possible for the trees to grow in a very short time.”

“How can this be successful? Does it rely on moonlight? Could it be that?”

“Yes, Chen Fan has always believed in himself. This is the instinct of a smart businessman. He may complete the establishment of his own scientific research institute on the desert side. That may be what Chen Fan needs most.”

“What kind of land is that.”

“I don’t know, but Chen Fan has the right to do this. However, at this stage, we still protect ourselves. I have nothing to do. You must protect yourself.”

“I understand, trust me.”

Qiu Hua nodded.

Time was lost in one minute and one second, and the heat about 5g was gradually raised.

But is 5g a design?

You don’t have a traditional concept yet, is it just fast?

I don’t know, but at this stage, all you can think of is pure speed.

However, in actual applications, there is no reference material after all, which is much worse.

Chen Fan was in the laboratory at this time, lost in thought.

“Xiaomei, sort out the information.”

“Yes, user.”

“Tell me about the bsr technology, which conditions can be triggered.”

Xiao Mei listed the organized private chats and began to read to Chen Fan.

It can be said that Chen Fan is not alone, but two people with Xiaomei.

Is it a trick? Yes, Chen Fan took a trick, and it is shameless to collect data from all over the world. This kind of thing may feel shameless in other things, but this technology, everyone will not think.

The strategic significance is too obvious, and if these technologies are really used, it will be a particularly terrible thing.

“1) The uplink data buffer of the UE is empty and new data arrives: When all the logical channels of all LCGs have no uplink data that can be sent, if any logical channel belonging to any LCG has data at this time, it becomes possible

To send, the UE will trigger the BSR to report. For example: the UE sends uplink data for the first time. This BSR is called “RegularBSR”;

(2) The arrival of high-priority data: If the UE has sent a BSR and is waiting for the UL grant, there is a higher priority data (that is, the logical channel to which the data belongs [not LCG] than any LCG The priority of the logical channel must be high) If transmission is required, the UE will trigger the BSR to report. This BSR is called “RegularBSR”;

(3) The UE periodically updates its buffer status to the eNodeB: the eNodeB configures a timer for the UE through the periodicBSR-Timer field of IE: MAC-MainConfig (configured to “infinity” to disable the timer), if the timer is When the timeout expires, the UE will trigger a BSR report. For example: when the UE needs to upload a large file, the time when the data arrives in the UE’s transmission buffer is not synchronized with the time when the UE receives the UL grant. That is to say, the UE is continuously uplinking while sending the BSR and receiving the UL grant. The transmission buffer is filled with data, so the UE needs to constantly update the amount of uplink data that needs to be transmitted. This BSR is called “PeriodicBSR”

Chen Fan lowered his head and began to write a new program.

“Xiaomei, you said, if all of these are achieved, can 5g do a lot of things?”

“Database, there is no such thing.”

“I’m thinking about the emergence of this technology, is it a good thing or a wrong thing, and if it is uncontrollable, what will happen? Usr technology, if it is really figured out, it is really, I dare not estimate.”

Xiaomei is lost in thought, and more and more users chat with herself recently.

Xiao Mei’s program is telling Xiao Mei that these are things she can’t interpret.

“Actually, maybe, Xiaomei, you can get up.”

Xiao Mei went silent.

This is indeed attractive to Xiaomei.

“If real technology is possible, I think the future virtual helmet will be the real market. In fact, it is similar to my nuclear power concept. If the information is damaged during the transmission process, then, only The signal of the informant needs to be amplified infinitely.”

“There are these messages about virtual helmets.”

“No need, because those are already old news.”

After Chen Fan sorted out his thoughts, he continued to complete his calculations.

“In order to improve the robustness of the BSR, LTE provides a mechanism for retransmitting the BSR: This is to avoid the situation that the UE has sent the BSR but never received the UL grant. The eNodeB configures the UE through the retxBSR-Timer field of the IE: MAC-MainConfig When the timer expires and there is data to send in any logical channel of any LCG of the UE, the BSR will be triggered. This BSR is called “RegularBSR”. (5) Waste reuse: When the UE has When it is found that the data that needs to be sent is not enough to fill the resource, the extra bits will be used as paddingbit and filled with some insignificant values. Instead of using it as paddingbit, it is better to use it to transmit useful data such as BSR. So when When the number of padding bits is equal to or greater than the size of “BSRMACcontrolelement+corresponding subheader”, the UE will use these bits to send the BSR. This BSR is called “PaddingBSR”.”

There are many programs recorded in the computer. It can be said that these are the new 5g algorithms.

These algorithms, in fact, Chen Fan’s understanding is about computer languages.

Whoever develops a new algorithm will have great computer language skills. On the other hand, if someone is late, then their own technology will be eliminated, and they can only use other people’s.

Algorithm, that’s it.

Chen Fan frowned in thought.

“Xiaomei, start building.” 0

“Yes, user.”

“1) Generate a ZC (Zadoff-Chu) root sequence Xu(n) as a reference sequence; (2) cyclically shift the reference sequence Xu(n) to generate 63 different cyclic sequences Xuv(n). If the number of shift sequences obtained from the reference sequence in (2) is less than 63, then re-enter (1) to generate the next reference sequence and the corresponding shift sequence of the new reference sequence until 64 preamble sequences are met .”

“Ok, use it.”

Chen Fan tried gradually.

And the time has come to March.

In 20 years, Chen Fan’s research speed was very fast, because those can be completed in a short time.

There are very few achievements in 21 years, but each result is a real life change, and the time required is extremely long.

At this time, Chen Fan looked at Wang Long and touched his beard.

“I feel, I have stinks.”

“I think I smell too.”

“So, how about we take a shower and then celebrate?”

“I think it can. After the celebration, I have to take a good rest.”

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