(This month, the author of Gou plans to impact the combat power list.,Update the number of words a little more.,Write a little bit about Kou Tianhai.,If you don't like to see this content, don't subscribe to it.。 In addition, let's explain the update a few days ago.,It's also the first time I've known that after the original release of a new volume.,The update display generally shows the new volume.,The chapters updated to the previous volume don't seem to show updates.,Miserable.,Last night's chapter was even more in the third volume.,So the name of the fourth volume was changed.。 ）

Kou's mother has already gone to work, and there are only two brothers and sisters left in the family.

Although there is no adult man in the family, Kou's mother has a stable job, after Kou's father sacrificed, Qiongzhou Mining gave the Kou family a compensation, and there are people in the company who take things to condolence during the New Year's holidays, plus the care of Kou's father's saved colleagues, so the Kou family's life is not poor, and there is not much pressure to survive.

After Kou Tianhai woke up, he went to the next room to see the little lazy cat Kou Jing was still curled up on the bed and fell asleep, and he didn't wake up his sister.

After eating the breakfast prepared by his mother early, he pulled out a recliner from the house, basking in the morning sun comfortably, bathing in the sun, thinking about how to go in the future.

No matter what science couldn't explain, Kou Tianhai could first be sure that he was indeed reborn.

The time of rebirth is not bad, but after he finished the college entrance examination, there was no change here, and he was admitted to Qinghua University.

Kou Tianhai was the first student in Changjiang County to be admitted to Qinghua University since the resumption of the college entrance examination, and his reputation immediately spread throughout the county, and the county was honored.

As a son of Qiongzhou Mining, Qiongzhou Mining came forward to hold a grand celebration banquet.

"This is also a rare highlight moment in my life, and it seems that I can experience it again." Kou Tianhai squinted his eyes, and he was in a very good mood.

To live a new life, you must always live a more exciting life.

Kou Tianhai thought silently, first of all, he must go to school.

The future of the communications industry is immeasurable, especially after entering the new century, Huaxia's communications are booming, and by 2019, when he crossed, it can already wrestle with the United States, the strongest country on the surface.

And he Kou Tianhai is the top technical talent in the field of 5G communication in China.

But......

Kou Tianhai looked at the mountains and rivers in the distance, and his face was smiling very arbitrarily.

In his previous life, he worked diligently for others, and in this life he has memories of the future, and he is not a man who is willing to be mediocre, how can he go back to the old path of the original time and space.

Mr. Ren was not reborn as a golden finger, and he was still able to create Warwick, as a traverser, can't he still create a world-renowned brand?

Talented people are also often conceited.

It's a pity that I have already applied to the Department of Mathematics of Qinghua University, and it would be nice if I could be reborn as soon as possible to report electronic information engineering.

Kou Tianhai decided to start studying electronic information engineering courses after entering the university, and met some big bulls in advance, and Qinghua University has produced many top talents in the communication industry.

He silently combed through the memories in his head.

The mobile phone was invented in 1973, and by the 80s, 1G had been used around the world, 1G was the first generation of wireless cellular technology that only supported voice calls, and the standard was developed by Motorola and Ericsson. In the 1G era, Huaxia is completely in a backward and beaten position.

At this time, China's communications industry had just survived the long and arduous exploration of the 80s, and the infrastructure and technology were still relatively backward, and it was completely imported foreign technology.

Kou Tianhai still remembers the information he read, in 1991, Ericsson and Nokia took the lead in setting up the world's first GSM network on the distant European continent.

GSM is a standard developed by Europe, because the 1G era is subject to the United States, so when digital communication was just beginning, European countries learned the lessons of their own failures, strengthened internal alliances, and established the "Mobile Expert Group (French: Groupe Spécial Mobile)" in 1982 to promote the "Global System for Mobile" based on Time Division Multiple Access Technology (TDMA) to the world communications，GSM）。 The purpose of GSM is to make it possible for all parts of the world to use a mobile phone network standard, so that users can use a single mobile phone to travel around the world.

Europe is in full swing, and the United States, which dominates 1G, is naturally not to be outdone, and the United States has come up with three sets of communication systems: two of them are also based on TDMA technology, and the third is the code division multiple access technology (CDMA) launched by Qualcomm.

From a technical point of view, CDMA is superior to the TDMA technology of the EU GSM in terms of capacity (more than 10 times that of GSM) and call quality. However, due to the early start of GSM, vigorously promoted, and the widespread deployment of base stations around the world in a short period of time, CDMA was just a thunderstorm at that time, and Europe finally surpassed the United States in the 2G era!

It's 1988, and it's three years before GSM technology is developed in Europe.

GSM technology Kou Tianhai also dabbled in the original time and space, but only the surface of the understanding, Europe began to study in 1982, Kou Tianhai did not think that with his relatively superficial understanding can be better than the European side.

"So the breakthrough is still on the 3G/4G/5G in the back." Kou Tianhai muttered to himself.

"Brother, what are you muttering?" The little girl Kou Jing's voice suddenly sounded in his ears.

Kou Jing woke up for a while, she got up from the bed in a daze, and then sleepily saw her brother lying on a chair basking in the sun at the door.

She ran over and hugged Kou Tianhai's neck affectionately.

Kou Tianhai patted her head: "Jing'er, when did you wake up?" ”

"Just woke up," Kou Jing didn't think about her brother's muttering again, and asked with her big cute eyes, "Brother, are you okay?" ”

"It's okay, lazy girl, I got up so late, go wash my face and wash my hands and eat. Mom just finished the meal, and it might be cold by now. ”

"Okay." The little girl replied crisply, and went to wash her face up and down.

Kou Tianhai's eyes chased his sister's figure, full of doting.

God treats him well, and he must make his sister's life complete this time, and he must not let her wither at the best moment of her life.

"Dangdangdang."

There was a knock on the door of the Kou family's courtyard.

"Brother Hai."

"Brother Hai."

The young voices of a man and a woman rang out at the same time.

Kou Tianhai was stunned for a moment, then couldn't help but smile on his face, and hurriedly went to open the door.

It was a pair of sons and daughters of Mo Feng, a colleague rescued by Kou's father, and Mo Qi's two brothers and sisters.

Mo Li Mo Qi is a dragon and phoenix fetus, one year younger than Kou Tianhai, and the three of them have played together since they were young.

When he was a child, this pair of dragon and phoenix fetuses were his two little tails, and later Kou Jing also joined in, and the four of them were also a well-known foursome among the mining children.

Even if several people later got married, they never broke off.

Later, Kou Jing unfortunately died in a car accident, and Kou Tianhai and his mother were grief-stricken, and it was also a matter of Mo Li's operation before and after running.

"Mo Qi Mo Li, you guys are here." Kou Tianhai looked at the two energetic brothers and sisters, and a smile of genuine joy appeared on his face.

"Brother Hai, I heard that I fell into the pond yesterday, are you okay?" Mo Qi looked at Kou Tianhai with a concerned expression.

Mo Li also looked him up and down, and when he saw him standing in front of him, he smiled happily.