It didn't take long for the passengers in the carriage to see another male flight attendant walking next door. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

The new uniforms in the suit style are paired with faces that can also be used as stars on TV, which shows the importance that the Ministry of Railways attaches to the Beijing-Tianjin Express.

The flight attendant, known as Brother Sun, first greeted everyone warmly, and then said loudly: "Everyone may not be familiar with mobile phones, so my colleagues and I will introduce its functions to you." ”

However, before he could finish speaking, someone next to him began to coax: "Dude, don't talk about that useless, do you know the code?"

"That's right, express code!hahahaha!"

There is always no shortage of people who like to have fun during the journey, especially when the sales pitch even makes such an interesting thing as a "code", many people can't wait to know the result.

Brother Sun smiled slightly, nodded and said, "Okay, since everyone is anxious to know if I know the code, then I'll say it." The code is 'shrimp crawler, let's go'. ”

Huh――

Hearing this code, there was a sudden exclamation in the carriage, and the passengers were like watching a magic show.

Louis also looked surprised, but in his eyes, this was not a magic show, but a real technique.

Only those who are really engaged in the industry know what it means to have just such a simple performance.

First of all, it's a train that is moving at a speed of 160 km/h!

The communication problems in high-speed mobile are very complex, involving positioning, base stations, soft handover, frequency resources, and baseband algorithm optimization.

Especially at high speeds, it's incredible that the call quality hasn't been affected much!

In the noisy background of the train car, deliberately lowering the speaking volume does not affect the answering effect of the other party, which indicates that the mobile phone has processed the background sound, and it has to consume additional computing resources.

Looking at the boxy shape of the mobile phones in the hands of the two, there is clearly no redundant antenna design, which is the most incomprehensible thing for Luis.

Although the mobile phone antenna can be made to be larger than the big brother, it is still unimaginable to do the inside of the mobile phone.

Early mobile phones, whether CDMA or GSM, unplugged the antenna signal would immediately weaken dramatically. Some models of early mobile phones even came with an anti-human design called a folding antenna.

The CDMA mobile phone launched by Tietong is one of the few specific mobile phone communication technologies that Hu Wenhai can remember. Although the six-arm spiral antenna was the standard configuration of mobile phones in later generations, it can be etched into the shell of the mobile phone and greatly enhance the signal quality of the mobile phone.

But this technology was still truly high-tech in the 90s, and not only did the antenna design formula need to be specially optimized, but also the corresponding RF IC had to be designed.

Technologies such as signal processing and background sound filtering are still difficult problems for some mobile phone companies to solve after 20 years, let alone Qualcomm in this era.

Of course, things are always relative. The call quality of Tietong mobile phone is still quite different from that of a certain brand of MX5. But the problem is that in 1990, it was enough to have background sound filtering and a six-arm spiral antenna, so what more bikes could you need?

It is not difficult to imagine Louis's mood at this moment, his own Qualcomm products have just completed commercial technology development, and they can come up with baseband chips with narrowband CDMA technology.

When I arrived in China, I found that Qualcomm thought it was a powerful technology, and that a Chinese company had come up with a product that could be put on the market.

Not only was it able to hit the market, but it looked like their product was actually quite good.

No, it didn't take long for Louis to overturn his own judgment. This is not only "pretty good", but also a cross-generational product!

I saw two flight attendants, a man and a woman, continuing to introduce the mobile phones in their hands, and more functions were demonstrated by them one by one.

"Our mobile phones are not only capable of making calls, but they can actually penetrate into every aspect of people's lives. ”

"Yes, for example, it has a phone book. Many people who do business have a phone book that records their phones, right? A thick stack is not only inconvenient to find, but also heavy and takes up space to carry around. Our mobile phones have a built-in digital phone book, which can store 10,000 communication messages, and can also be queried by name, phone number and keyword. With just one click, you can get instant results. ”

The two seemed to be talking about cross talk, and the female flight attendant immediately picked it up after the man finished speaking: "But not only that, you can also send the information in the phone book to others through text messages." What is SMS? SMS is a text message sent by a mobile phone, sometimes it is inconvenient to make a phone call, or it is not clear to speak, and text communication is needed, etc., you can use SMS to transmit information. ”

"SMS messages are not only sent between users, but also can be subscribed to our Tietong company's information service. For example, weather forecasts, stock quotes, flight schedules, and telephone inquiries can be enjoyed for a small monthly fee. You can even post a variety of information on the railway information network built into our Tietong mobile phone. Such as job searches, selling, renting, second-hand items, and anything else you want to talk to. In the past, it used to take less than half a month to communicate with pen pals at the ends of the earth, but now it may only take a minute. All these incredible things are happening on the railway information network......"

Louis already feels that his head is a little insufficient, if the part of communication before is still his specialty, then the functions introduced by Tietong mobile phone now, even in his opinion, are full of incredible.

It turns out that mobile phones can be used in addition to calling!

By the time the female conductor read out a passage from a recipe on the railway information network, he couldn't wait any longer.

"Excuse me, can you sell me your phone now?"

The female flight attendant looked at Louis with a somewhat surprised expression. This person is really not the childcare we arranged, why is he so positive? This foreign friend, you are too positive, it will make other passengers misunderstand!

The Ministry of Railways wants to sell things, and it is not enough to rely on childcare to complete the task, and it is even more impossible to find a foreigner to cooperate with their performance.

But even so, seeing Luis's positive performance, many passengers looked at the flight attendants with some suspicion.

"This traveler, our introduction is not yet complete. The female flight attendant was a little embarrassed: "Although our product is very good, it can only be used in a few first-tier cities in China at present, and it cannot be used abroad." ”

"I know. Louis nodded: "How much is your mobile phone? I bought it for the Asian Games." ”

The female flight attendant kindly reminded: "Sir, its price is not cheap, and the bare metal costs 12,000 yuan." Internet access fee and pre-deposited phone bill, a new mobile phone costs 18,000 RMB. ”

"And the phone call is five cents a minute, which is not available in Dagu. ”

"I pay dollars. Louis simply pulled out his wallet, counted them, and then his face changed slightly—he didn't have enough money.

This is the first time he has faced such a situation in China.

In a country where he only charges fifty cents for a forty-kilometer journey from the airport to the hotel, he can't afford to buy something!

18,000 yuan is not only a sky-high price for the vast majority of Chinese, but also a lot of money converted into dollars at the official exchange rate.

The price of about $3,600 is at least one-tenth of Louis's monthly income, and it's a little distressing to think about it.

However, compared to money, the urgency of not being able to immediately appreciate the mobile phone is more serious.

"Well, I'll pay a hundred dollars, can you please lend me your phone for a while? As long as this train arrives, this hundred dollars will be yours!"

That's dollars! And a hundred dollars!

The female flight attendant swallowed her saliva secretly and said with a forced smile: "This passenger, our mobile phone is configured for official business and cannot be borrowed, I'm very sorry." But since you're so interested in this product, you can wait for me to highlight it for you in between work. ”

"No problem, you take the hundred dollars. Without saying a word, Louis shoved the dollar bill in his hand into the female flight attendant's hand, ignoring the other party's strong objection.

"This is a tip, please take it. He said with a straight face: "It is normal behavior to tip in our United States, and if you don't take it, you will not respect our American customs!"

Well, I don't know when he learned the noun, and the American customs......

However, since Louis said this level, the female flight attendant had no choice but to nod her head in agreement. After all, it's a hundred dollars, and it's cost-effective to fight for a punishment, but I don't know if I can stay.

The two flight attendants then introduced the product to the passengers, and as they learned more about the mobile phone, the passengers' suspicions that Luis was a childcare gradually disappeared.

In fact, not only Luis, but also a lot of people on this train who are not bad for money. Although only four test networks have been laid in Beijing, Shanghai, Guangzhou and Xi'an, the attraction of Tietong mobile phones to businessmen is unparalleled.

A middle-aged man in his forties, who was dressed inconspicuously, unbuttoned his trouser belt in front of the passengers, tore two strips of cloth through his crotch, and then took off a vest like a body armor full of bulletproof plates.

On the back of the vest, there is a stack of great unity.

The humble middle-aged man actually took out 18,000 yuan on the spot and bought a mobile phone from the flight attendant.

Seeing this scene, the air that came out of Louis's nostrils was hot as if it was burning.