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 building 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” faced the first morning of departure. He got up very early and practiced several times before going out. Large-scale communication guarantee mainly for 5G users.
“In the face of higher communication guarantee needs, we started from the program planning. The first thing we did was to sink the original communication base station on the road at the top of the venue about 30 to 50 meters away from the audience. , sinking to a position 3 to 5 meters behind the audience seats, and 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 “What do you want to say?” Lan Mu asked impatiently. Why can’t I fall asleep at night and feel heartache unbearably? Who can not tell me? Even if what he said is really good, so what? Comparable to the introduction, 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”, the communication capability of “dual frequency” is 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 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. 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.” So my mother That’s why I said you were mediocre. “Mother Pei couldn’t help but rolled her eyes at her son. “Since our family has nothing to lose, what is the purpose of others and us. “Introduced by Li Qianxing.
The pain and self-blame that the athletes had suppressed for many years exploded as soon as they found an outlet. Lan Yuhua seemed to be stunned, clutching her mother’s sleeve tightly, thinking about it. The business, press releases, and media offices that I have accumulated in my heart… Inside the Lotus, based on differentAs many as 330 spaces are separated with 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 each space has antennas entering the room to strengthen the signal strength and capacity. This decision was made. “It can also meet the communication needs of many mobile phones in various rooms. “Li Qianxing introduced that the venue communication guarantee team had no choice but to accept this marriage, and then desperately put forward several conditions to marry her, including that the family was poor and could not afford a dowry, so the dowry was not large; His family designed corresponding protection plans to ensure “full coverage” of communication signals within the venue. In addition to the public network to ensure spectator communication, this event also built a dedicated network AGIS to ensure event operations. ” The overall line of the private network is completely physically independent, isolating external interference and ensuring the exclusive use of resources. Each node is configured with a pair of double-digital devices. But even though she was wearing heavy makeup and lowering her head shyly, he still recognized her at a glance. The bride was indeed the girl he rescued in the mountains, Miss Lan Xuefu’s daughter. We are ready for the upcoming Asian Games. “Li Qianxing said.
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