"Everyone, the exciting time has come. Today is the great moment to verify the practical application of our CDMA network!!" In the conference room of a hotel in Hong Kong, dozens of foreigners, some local officials, and some local reporters all had excited expressions on their faces.
These dozens of foreigners were technicians from Qualcomm Group in the United States, and the chairman of Qualcomm Group, Owen Jacobs. Today was a very important day for Qualcomm Group, because the CDMA communication network that Qualcomm Group had painstakingly developed for four years was finally going to be tested.
The CDMA communication network was a wireless mobile communication network based on CDMA technology, which was the communication network of mobile phones.
To put it simply, it was a mobile phone signal based on CDMA signals.
In a month, Qualcomm had arranged 18 signal transmitters in the entire Hong Kong, basically covering the entire Causeway Bay area.
The purpose of the experiment was to verify whether the CDMA network could operate normally and how stable it was.
The test method was also very simple. Qualcomm Group arranged a total of more than 200 staff with CDMA network chip mobile phones, distributed them in various locations in Causeway Bay, and then let them call each other. As long as the voice of the two sides could maintain a high degree of stability, and at the same time, a certain high-capacity signal transmission could be carried out, the CDMA network would be considered a success. The CDMA network would also be approved by the United States Ministry of Information Industry and officially qualified for market operation.
This was undoubtedly extremely important for Qualcomm. As long as this experiment passed, the CDMA network could obtain a license to enter the market. At the same time, the CDMA network could be proved to be a network that could be used in reality.
More importantly, they had already negotiated with the relevant officials in Hong Kong. As long as this experiment passed, Hong Kong would become the first area in the world to install a CDMA communication network. Qualcomm's first CDMA business would be considered a success.
The technology that Qualcomm had painstakingly studied for four years could be realized, instead of continuously burning investors' money like six years ago.
Simply put, as long as the experiment was successful, Qualcomm could make money.
So at this moment, everyone in Qualcomm Group was very excited.
"Chairman, it's nine o 'clock in the morning!" Owen Jacobs' secretary reminded him in a low voice. Owen Jacobs nodded with a ruddy face and said to a dozen technicians, "Start the CDMA signal base station!"
"Yes! Activate the CDMA signal base station!! " More than a dozen technicians pressed the buttons in their hands at the same time. The whole scene could be said to be very sci-fi. It was as if they could control a base station that was several kilometers or even more than ten kilometers away by pressing this button.
But in fact, the staff of Qualcomm Group had already been stationed near the power controllers of these base stations, and they did not need to wait for a call.
They just looked at their watches. When it was 9: 00, they sent power to the base stations at the same time. Then, the 18 base stations began to work.
"Chairman, please call the experimenter!" The secretary said excitedly. Owen Jacobs waved his hand and passed the phone to an official of the port next to him. "Let Mr. Lin go first. You make the first call. This is the first mobile phone in the history of the world to be broadcast through the CDMA network!"
"Alright!" Mr. Lin blushed when he heard that. Thinking that he might be recorded in the history of mankind because of this phone call, he excitedly picked up the phone in Owen Jacob's hand.
"There are 200 different phone numbers written here. You only need to enter one of the phone numbers, and you can talk to any of the 200 experimenters!" Owen Jacobs took out a file filled with phone numbers and handed it to Owen Jacobs.
Unlike the phone numbers of more than 10 digits in the future, the phone numbers on this file were all four-digit phone numbers. This was really the first batch of mobile phone numbers in the world based on CDMA!
"2233!" In his excitement, Mr. Lin dialed one of the most interesting numbers.
"Beep!" With a familiar sound, the phone was successfully dialed. The faces of the people around suddenly showed an expression of great anticipation. They were looking forward to the moment when the experimenter on the other end of the phone would answer the call.
But the problem was that the phone just rang, and then there was no sound. In the end, there was even a squeaking sound from the phone.
"It's nothing … It takes some time to connect the signal at first …" Owen Jacob's expression was a little stiff, but he still forced himself to explain. However, after waiting for a full minute, no sound came out. The only thing that happened was that the buzzing sound of the electric current became louder.
"D * mn it, the phone can't connect to the base station at all. Is there a problem with the signal reception?" As the chairman of the technical department, Owen Jacob was naturally very clear about the equipment he had personally developed. As long as he heard the sound coming from the phone, he could determine where the problem was.
"I'm sorry, there may be a problem with base station 12. I'll send someone to repair it right away!" Owen Jacob said hurriedly. Then, he took out his walkie-talkie, adjusted the channel, and ordered the staff in charge of base station 12 to repair and adjust the base station immediately.
"Yes! We'll go now! " The staff stationed at base station 12 immediately rushed to the top floor, dismantled the base station, and began to concentrate on finding the problem with the base station.
At this time, the security guard standing at the door of the top floor, staring at the flag at the top of the Golden Dragon Building in the distance, suddenly realized that the color of the flag had changed from green to red.
So, he reached into his tool bag and closed the switch that was originally open.
"What should we do? We can't find any problems! "
"Yes! There's no problem at all! "
The two engineers in charge of maintenance checked for a long time, but they couldn't find any problems. They could only pull out the power and restart the base station. Then, they replied to Owen Jacob and asked them to test it again.
"Then let's try again!" Owen Jacobs said with a stiff expression. Mr. Lin awkwardly dialed the number again, but this time, it seemed that the phone had been fixed. The call went through successfully, and a person's voice came from the phone. At the same time, the person complained, "Why did it take you so long to call me? It's already more than ten minutes late!"
Owen Jacob didn't get angry with the experimenter, because he breathed a long sigh of relief. It seemed that it was just a small problem, and now it was finally a success.
Mr. Lin also began to talk to the experimenter, asking him some questions. Just as everything was getting better, Owen Jacob didn't notice that the flag at the top of the Golden Dragon Building not far away had changed from red to green again.
Then, with a squeak, the call that was going smoothly just now was hung up in an instant, and it became a squeaky, unreachable state again.
Owen Jacobs's face was ashen. At this moment, the staff member in charge of communicating with the 200 experimenters through the walkie-talkie sent a report saying that some of the experimenters were actually able to get through the phone, while most of the other experimenters were unable to get through.
"Repair it, quickly repair the base station for me!" Owen Jacob said angrily, and the engineers under him had to repair the base station again. As a result, some base stations were restored to normal, but some base stations were not working normally, and some base stations were intermittently interrupted and suspended.
All in all, the CDMA network was extremely unstable, with all kinds of disconnects and drops, and signal failures occurring from time to time. The entire network was actually not working for about half of the time.
Most of the time, the engineers couldn't find any problems, but generally, as long as the power supply was restarted, the machine could be temporarily restored, but after a while, problems would reappear.
In the eyes of professionals, this was completely because the communication base station and the CDMA communication technology network itself was very unstable, and the internal circuit design was not scientific, and the various electronic components were not compatible. That was why it would work normally when the power supply was cut off, and after a while, it would fail again.
This set of equipment was full of technical defects, and it was simply unable to support the communication task of a big city.
"Mr. Jacob, it's getting late. We still have other work to do, so we'll take our leave first!" Mr. Lin said a little apologetically, and then left directly with a group of government officials. The reporters on the scene flashed their cameras crazily, constantly taking photos, including the ashen face of Qualcomm's president.
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