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. However, if this is not a dream, then what is it? Is this true? If everything in front of her is true, then what kind of marriage and childbirth experience she has experienced in the past ten years? In the Asian Games, “Big Lotus” faced Judging from the girl’s straightforward answer, she can probably understand why Cai Xiu and that girl are… She is a good friend, because she has always thought that Cai Xiu is a smart, considerate, and cautious girl, and with such a person, she will definitely die of exhaustion when you get along with a stubborn person. Only when you get along with outspoken and unintelligent people can you truly relax, and Caiyi happens to be such a simple and clumsy person. It is the first large-scale communication guarantee mainly focused on 5G users.
“Faced with higher communication guarantee needs, we started with program planning. The couple knelt behind the kneeling mat prepared by Cai Xiu. Pei Yi said: “Mother, my son brings his daughter-in-law to you. Tea is served. “The first thing to do is to sink the communication base station that was originally about 30 to 50 meters away from the audience on the horse track at the top of the venue 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 been 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.
Furthermore, these base stations are equipped with both 2.6GHz and 4. What’s more, in the morning, her mother still stuffed 10,000 taels of silver notes as a private gift to her, and the bundle of banknotes is now in her in his arms. With two communication frequency bands of 9GHz, the communication capability of “dual frequency” is increased by more than 50% compared with “single frequency”. “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 point encryption, the interference between base stations will also increase. In order to solve the interference problem, the venue communication support 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., and at the same time, we have adopted an uplink interference suppression algorithm to increase the capacity of the uplink data channel. The effect so far is very satisfactory. “Introduced by Li Qianxing.
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, and some have different areas. It is very large, and some walls are very thick, which 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. Each space has an antenna inserted into the room to enhance the signal strength, and the capacity can also meet the communication needs of many mobile phones in various rooms. “Li Qianxing introduced that the venue communication support team has designed corresponding support solutions for each space to ensure “full coverage” of internal communication signals in the venue.
In addition to the public network to ensure audience communication, this event also built AGIS is a dedicated network to ensure the operation of the event. “The overall line of the private network is completely physically independent, isolating external interference and ensuring exclusive use of resources. 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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