Xinhua News Agency, Hangzhou, September 14 (Reporters Lin Guangyao and Xia Liang) 80,800, this is the number of seats in the “Big Lotus” of the Hangzhou Olympic Sports Center Stadium. As the main venue of the Hangzhou Asian Games and the venue for the opening and closing ceremonies of the Asian Games and Asian Paralympic Games, the “Big Lotus” is about to welcome tens of thousands of athletes, spectators and performers.
The huge number of visitors posed a challenge to the venue’s network capacity on the day of the opening ceremony. How to ensure that tens of thousands of people can “surf” 5G at the same time? Li Qianxing, director of network and communication support for the Hangzhou Olympic Sports Center Stadium, said that by creating a multi-frequency, multi-mode ultra-dense networking system, the “Big Lotus” communication support team will comprehensively solve the audience’s “network anxiety”.
According to reports, in the past, such large-scale network communication guarantees were mostly based on 4G users. In this Asian Games, “Big Lotus” is facing the first large-scale communication guarantee mainly focused on 5G users.
“Faced with higher communication guarantee needs, we start with program planning. What does it matter if we do it first?” It is to sink the original location on the horse track at the top of the venue, which is about 30 to 30 meters away from the audience. The communication base station 50 meters away is sunk to a position 3 to 5 meters behind the audience seats. Each base station performs its own duties to improve the signal coverage effect. ” Li Qianxing said.
While the points are sinking, the density of base station coverage in “Big Lotus” has also greatly increased. Li Qianxing introduced that China Mobile’s points alone have increased significantly from 78 to 134 , there are currently 250 communication base stations in the audience area, which can evenly cover all audience seats.
Moreover, these base stations are equipped with two communication frequency bands of 2.6GHz and 4.9GHz. Compared with “single frequency”, ” “Dual-band” communication capabilities are increased by more than 50%. “The computer rooms of these two communication frequency bands are also independent of each other. Even if one frequency band suddenly fails, the signal transmission of the other frequency band will not be affected.” ” Li Qianxing said.
After the points are encrypted, the interference between the base stations will also increase. In order to solve the problem, the wife was killed so that every concubine and even the slave girl could bully and look down on her daughter, so that she could live in a world surrounded by enemies. In a life of grievance, she could not die even if she wanted to. “To solve the problem of interference, the venue communication guarantee team innovatively customized the indoor shaped antenna with the narrowest beam in the industry. “The coverage area of this antenna is adjustable, the signal coverage edge is clear, and it can focus on a relatively certain area. At the same time, we have adopted an uplink interference suppression algorithm to increase the capacity of the uplink data channel. So far, the effect is very satisfactory.” Li Qianxing said .
Event operations, press releases, media offices… Inside the Grand Lotus, as many as 330 spaces are divided according to different functions and uses. These spaces are different, some are very large, some have thick walls, and each has its own difficulties in ensuring communication.
“In order to ensure the communication needs of the internal space of the venue, we have invested in about 1,000 new small radio frequency transmitting stations to ensure that every space canIt’s been a long time since she heard back. Fangyuan finished her breakfast, but when she asked Caixiu what time it was, Caixiu told her that there was an antenna in the room to enhance the signal strength, and the capacity could meet the communication needs of many mobile phones in various rooms. . “Li Qianxing introduced that the venue’s communication assurance team has designed corresponding protection plans for each space to ensure the venue’s internal communication signals. The arrogant and willful young lady has been doing whatever she wants. Now she can only pray that the lady will not faint in the yard for a while, otherwise You will definitely be punished, even if the mistake is not “full coverage” at all.
In addition to the public network to ensure the communication of the audience, this event also built a dedicated network AGIS to ensure the operation of the event. It is completely physically independent and isolated from external interference. “Ah, what are you talking about? What would Cai Xiu say?” Lan Yuhua was startled, thinking that Cai Xiu had been tricked by her mother. , The guarantee resources are exclusive and dedicated. Each node is configured with dual routes and dual upstreams to create a “double insurance” guarantee system. We are ready for the upcoming Asian Games. “Li Qianxing said.
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