Chapter 401 The Battle Between GSM and CDMA

Gu Xueli, as a newly promoted academician of the Chinese Academy of Engineering, is the general manager of the National Torch Plan-Mobile Communication Project.

It was natural for Wu Tao to ask him about this matter.

However, when Gu Xueli heard this tone, his face immediately became serious: "You think that these basic technologies are for farmers to farm? Sow in spring, and you can harvest in autumn?"

Wu Tao was not annoyed, after all, as a junior, he knew Gu's temper.

Besides, Lao Gu is so vigilant, probably because he was too hasty in the previous mobile phone prototype design cooperation.

So he smiled and said: "Grandpa, as the saying goes, if you sow melons, you will reap melons, and if you sow beans, you will reap beans. Since we invest in it, we must have a harvest, right? Even if we don't have it now, when we will have it, we must have a rough idea, yes No?"

At this time, Yin Wenfang came over with a fruit plate, and seeing his wife blowing his beard and staring, he couldn't help feeling aggrieved for Wu Tao: "It's rare for the child to ask you something, so can't you talk about it properly?"

"Go, go, you old woman, you don't understand anything, don't interrupt me!" It seems that Comrade Gu's temper is a little bit swollen after he became an academician. Before this, I never dared to do this.

What is rare is that Yin Wenfang was not annoyed after hearing this. He just patted Wu Tao on the shoulder and said comfortingly, "Tao, don't argue with him, he just has a bad temper."

After Yin Wenfang left, Gu Xueli sighed: "The Torch Program now faces two major problems. One is that the country's IC industry has no foundation, and a comprehensive layout requires planning and time; the other is that the expert group is choosing which way to go. At that time, there were differences, GSM and CDMA, how to choose?"

Listening to these two words, Wu Tao feels both familiar and unfamiliar.

GSM is a technology of the 2G era, and it has been popular until nearly ten years later; but CDMA, in my impression, should belong to 3G technology. How can it be compared?

Immediately asked without hesitation: "What is the difference between GSM and CDMA?"

Gu Xueli put his skinny palms on his knees, "Technically speaking, CDMA is more mature and advanced. It was developed by Qualcomm in the United States, transformed from military use, and uses code division multiplexing technology."

"...GSM is a time-division multiplexing technology. The standard developed by the Europeans is now the most widely used because of its early implementation."

"...Technically speaking, the user capacity of CDMA is more than 10 times that of GSM, and the signal is clearer and less likely to be eavesdropped."

"...However, Qualcomm has registered a large number of patents in the CDMA standard, and other countries and organizations must pay high patent fees if they want to use it. Moreover, only some operators in the United States and South Korea have adopted this standard in the world."

Speaking of this, Wu Tao already understood. Combining the superficial understanding of these two standards in memory, he put his hands and fingers together in front of him and said, "Uh..., if I said that both standards should be followed, grandpa, you wouldn't hit me, would you?"

Although the vitality of GSM in the previous life was very strong, the communication technology in the 3G and 4G era is still based on the CDMA standard.

Qualcomm, an old patent hooligan, has plundered the world by relying on the patent barriers he set up early.

That being the case, it seems that at present, only two standards must be implemented.

However, Gu Xueli didn't expect so much. As the general manager of the Torch Project, his decision-making directly affects the size of the project, how much it will cost, and how much it will produce.

And the bigger the stall, the heavier the responsibility.

What's more, the choice of both standards is more like a moderate and irresponsible decision.

So Gu Xueli was really angry, "You child, why don't you feel pain in your back when you stand and talk? How can the country's money be ruined casually..."

Seeing that the old professor was about to start talking non-stop, Wu Tao interrupted decisively: "Grandpa, listen to me first, and then it's not too late to make a decision."

"...First of all, the GSM standard was first marketed by the Europeans, and now it has occupied more than half of the country in terms of scale. And although the GSM technology is a bit backward, I estimate that it has at least 8 to 10 years of vitality. In this way, our It is definitely inappropriate not to introduce development.”

"...Secondly, CDMA technology is very advanced, and it is likely to be an unavoidable development direction in the future. So, if we don't do it now, we will still lag behind in the future."

"...Although the cost is too high to implement both standards; but we have such a large market in China, we can reap the benefits of the fisherman. We might as well join the 3GPP organization of the Europeans and start the domestic IC industry first. Besides, as for Qualcomm's CDMA technology, we can refer to South Korea's cooperation model."

"...In short, the GSM standard directly follows the path of industry-university-research transformation, and the CDMA standard, let's focus on it first. By the way, we will develop some new patents on the basis of Qualcomm. After the real large-scale application in the future, it will be convenient to negotiate prices with Qualcomm. .Patent replacement and sharing is not impossible."

"...It really doesn't work, the worst thing is to find a way to buy Qualcomm!"

Wu Tao spoke with eloquence, and Gu Xueli's eyebrows brightened at first, and then he was terrified.

After all, such a thing as buying a foreign company sounds absolutely impossible right now. Especially when the opponent is a high-tech company in the United States!

However, these words sound bold and bold, but they actually provided Gu Xueli with the most feasible idea.

Even Comrade Gu can see that this idea is essentially the same as Wu Tao's idea of ​​developing the mobile phone industry.

Industrialization is first rolled out, and then along with technology accumulation and research, and finally achieves external strength and internal strength, and complete independence.

After thinking about it, Gu Xueli jotted it down in his notebook. Lin Li took off his glasses and said, "Our project team will organize a field trip to the United States and Europe in March next year, so why don't you go with us?"

"Okay!" Wu Tao couldn't help but his eyes lit up, "But grandpa, I'm still thinking about writing two more papers next year, and find a professor from Tsinghua University or Peking University to recommend me for special recruitment?"

Unexpectedly, when this matter was mentioned, Gu Xueli was really furious, "Why do you want to go to Tsinghua University and Peking University? Isn't Jinling University also very good? After the last report meeting, Academician Cai wanted to recruit you..."

I really didn't expect the old professor to have a strong sense of collective honor. For a while, Wu Tao also had a funny face and was speechless.

Fortunately, Yin Wenfang came over at the right time and interrupted arrogantly: "The child wants to go to a better university, what's wrong, is there something wrong? Let me tell you, the child didn't consider Jin University, it's because your Jin University is not good enough! You are good, I know how to lose my temper with children."

After saying that, Gu Xueli stroked his knees and sighed, his old face was full of helplessness.

After all, Jin University is not as good as Tsinghua University and Peking University, and it is not his fault alone.

However, he softened his tone after being interrupted like this, "Forget it, I am actually qualified to recommend you to Tsinghua University and Peking University now, and I will contact you later."

"That's really great!" Wu Tao couldn't help being overjoyed, "Grandpa, I will notify you as soon as my paper is published. At least you will have some confidence when you recommend it for me."

"Hmph! How dare they want you! If you don't want you, I will guarantee you to go to Jinling University!" Gu Xueli slapped his chest loudly.

Seeing Wu Tao's face twitching, he wanted to laugh but didn't dare to laugh, well, after talking for a long time, he came back again...

The first update, there are two more updates tonight.