Military industrial hegemony

Chapter 1143 The Progress of Domestic Mobile Phones

And the second project team, which is specialized in mobile phones, no, the professional term should be research work on mobile phones.The person in charge is Xie Yu, who is in his 30s this year. He worked in a research institute before and later studied abroad.After returning from studying abroad, I was a little dissatisfied with the work in the laboratory, so when I heard that Jiang Chen's research conditions here are relatively good, I came here.He himself studied radio communication technology abroad, and his tutor and the laboratory he worked in were also internationally renowned laboratories.Originally, he had the opportunity to stay there, but considering that his family and relatives are all in the country, he chose to come back.

And now the research work on this base station has basically been completed.Of course, Jia Hongda and the others did not stop to wait for Xie Yu and the others, but started the research and development of a new generation of base station technology.And judging from their appearance, it seems that the progress is relatively rapid.From some of the materials they reported to Jiang Chen, it can be seen that they seem to be breaking through the coverage of the base station and the data volume. To put it bluntly, it is the processing power.At present, the 60-meter communication base station they have developed has a limited coverage radius of 500 meters.And this is still in a relatively open area. If you choose to be in a mountainous area or an urban area, the coverage radius may be reduced.Although it meets the current communication needs, the cost will be greatly increased.For example, to cover the entire Anxi area, hundreds of base stations of this scale are needed, and the construction cost will be a very large expense.So what they have to do now is to increase the coverage of a single base station, thereby reducing the number of base station deployments.

Of course, if you simply increase the coverage distance, you only need to increase the transmit power of its base station.However, it is not as simple as simply increasing the power, it also involves many aspects.This includes the stability of the signal, the impact of the base station frequency on the frequency of other facilities, and whether the emitted radio waves are safe, whether they have any impact on the human body and the surrounding environment, and so on.The data volume is the simultaneous processing capacity of data.To put it bluntly, it means how many people a base station can accommodate to talk at the same time and so on.With the popularity of mobile phones, the data carried by base stations will naturally increase, especially in densely populated areas, so research in this area is naturally very necessary.

As for Xie Yu, although the progress is relatively fast.But after all, it is to develop a new generation of technology, so the difficulty is still very high.At present, the most difficult problems facing them are mainly three aspects. The first aspect is the GSM or CDMA network mode, which can be regarded as the most difficult problem encountered in the entire mobile phone research and development process.The second problem is to integrate so many components into such a small volume in terms of mobile phone integration.And Jiang Chen's requirement for them is that the volume of the entire mobile phone cannot be more than half of the size of the 'big phone'.This makes it have higher requirements for microelectronic components and micro integrated circuits.Although it is said that later generations can make it smaller, but at that time the technology of later generations.But Jiang Chen and the others have just started, so they have to take it step by step.And the third problem is the battery of the mobile phone.In this period, lithium-ion batteries used in such digital products have not yet been developed, and even lithium batteries have only been released recently, so it is indeed a big problem in terms of batteries.

Of course, Jiang Chen also put forward some opinions on these issues, such as the technical aspects of lithium batteries and lithium-ion batteries.Although these researchers are ecstatic about Jiang Chen's insights, it will take time to develop them.All Jiang Chen didn't know if it was resolved there, but Jiang Chen received the news from there and asked him to go there.

So with doubts, Jiang Chen came to the small building where the research and development project team lived.This is an independent five-storey small building, which was specially vacated by Jiang Chen for the research and development of the entire project.Like other facilities, a strict access control system is adopted here.After swiping his card and passing through the turnstile to confirm the ten points, Jiang Chen walked in.He found that Zhou Guangji was already waiting in the hall with Xie Yu and Jia Hongda, and when he saw Jiang Chen coming in, he greeted him with a smile.

Seeing this, Jiang Chen hurried up to hold Zhou Guangji's hand and said with a smile, "Mr. Zhou, why bother you to pick him up in person."

"Hehe, Mr. Jiang is here, how could I not come to greet him?" Zhou Guangji laughed.

"Haha, you're hurting me, how can I bother you, it's just the kid's fault." Jiang Chen replied with a smile.

Zhou Guangji nodded to Jiang Chen and cursed with a smile: "Okay, I don't know about you yet, let's go up."

"Hehe, okay, this is your territory, I will follow your arrangement today." Jiang Chen also climbed along the pole.

"Haha, okay, then I'll make the decision for you President Jiang today." Zhou Guangji smiled heartily.

"Hehe, you, why don't you call me Xiao Jiang, call me Mr. Jiang, why do I feel so harsh." Jiang Chen said depressedly.

"Hahahaha,,," everyone laughed.

All the way to the living room, it can be regarded as a conference room.Anyway, it is a big room, where they usually hold meetings, discuss issues, and do all their activities.After everyone sat down, a staff member served a cup of tea to everyone.Jiang Chen couldn't wait to say: "Mr. Zhou, you asked me to come here in such a hurry this time. Has our research progressed?"

"Haha, look at how anxious you are." Zhou Guangji scolded with a smile: "Let's not talk about this aspect, let's talk about other things."

"Other things?" Jiang Chen asked with some doubts.

"Yes, other things." Zhou Guangji nodded and then shouted to the crowd: "Xiao Wang, pass the materials you prepared to Xiao Jiang and let him have a look."

Yes, a young man in his twenties stood up, took out a document and handed it to Jiang Chen.Although there are many people in the R&D project department, Jiang Chen can't remember all of them, but he still remembers this young man.His name is Wang Bin, and he is engaged in battery research.After graduating from Tsinghua University, I stayed in a research institute for two years.In the end, I couldn't stay any longer. I heard that Nanshan was developing well, so I went to Nanshan.It just so happened that Jiang Chen and the others were going to do research on mobile phones, and there was a shortage of battery researchers, so he recommended himself and led seven or eight young people to form a battery research team to be responsible for the research on mobile phone batteries.

In fact, it's not that Jiang Chen doesn't pay attention to the battery, but that Jiang Chen and the others never thought of doing battery research when developing mobile phones.Because before this, Jiang Chen and the others actually had a battery supplier, which was a company in Chu Province.They have been providing batteries for Jiang Chen and the others since they produced motorcycles, and they have also been providing batteries for the cars behind them.So when they heard that they needed batteries, Jiang Chen and the others instinctively thought of this company.And Wang Bin's battery R&D team only serves mobile phone batteries.To put it bluntly, it is to play the role of communication between the research team and the battery manufacturer, so this is the only person, or it will be entrusted to him.

After receiving the document, Jiang Chen read it.But after reading the title, Jiang Chen became serious,,,

(End of this chapter)