“You should know that I only have one daughter, and I regard her as my treasure. No matter what she wants, I will do my best to satisfy her, even if your family says they will break off the marriage this time. Xinhua News Agency, Hangzhou, September 14th (Reporters Lin Guangyao and Xia Liang) 80,800, this is the number of seats in the Hangzhou Olympic Sports Center Stadium “Big Lotus”. As the main venue of the Hangzhou Asian Games, it is also the venue for the opening and closing ceremonies of the Asian Games and the Asian Paralympic Games. “Big Lotus” is about to welcome tens of thousands of athletes, spectators and performers.
The huge number of visitors poses a challenge to the network capacity of the venue on the day of the opening ceremony. How to ensure that tens of thousands of people can use 5G at the same time “Surfing”? 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”. p>
According to reports, in the past, such large-scale network communication guarantees were mostly based on 4G users. This Asian Games is the first time that “Big Lotus” is facing large-scale communication guarantees mainly on 5G users.
“In the face of higher communication support needs, we started with program planning. The first thing we did was to sink the original communication base station on the horse track at the top of the venue, which was about 30 to 50 meters away from the audience. At a position 3 to 5 meters behind the audience seats, each base station performs its own duties to improve signal coverage. ” 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”, ” The communication capabilities of “dual frequency” 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 point encryption, the interference between base stations will also increase. In order to solve the interference problem, the venue communication guarantee team innovatively customized the indoor shaped antenna with the narrowest beam in the industry. “This 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. “Introduced by Li Qianxing.
Event operations, press releases, media offices… Inside the Grand Lotus, as many as 330 spaces are divided according to different functional 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.
“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 enhance the signal strength, and the capacity can also meet the needs of all types of rooms.Communication needs of many mobile phones. “Li Qianxing introduced that the venue communication support team has designed corresponding support plans for each space to ensure the internal communication signals of the venue. Pei’s mother was too lazy to bother with her son and asked him directly: “Why are you in such a hurry to go to Qizhou? Don’t tell mom that the opportunity is rare, it will be gone after this village. “Store. “Full Coverage”.
In addition to the public network to ensure audience communication, this event also built a dedicated network AGIS to ensure event operations. “The overall line of the private network is completely physically independent and isolated. External interference and protection resources are exclusive and dedicated. Each node is configured with dual routes and dual upstreams to create a ‘double insurance’ protection system. We are ready for the upcoming Asian Games. “Li Qianxing said.
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