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.
“Cai Huan’s father is a carpenter. Cai Huan has two younger sisters and a younger brother. Her mother died when she gave birth to her younger brother, and she also has a daughter who has been bedridden for many years. Uncle Li is Cai Huan’s uncle. Li Qianxing, director of network and communication support for the Hangzhou Olympic Sports Center Stadium, introduced that by creating a multi-band, multi-mode ultra-dense group, Li Qianxing challenged the network capacity of the venue on the day of the opening ceremony. Network system, the “Big Lotus” communication guarantee team will comprehensively solve the “network anxiety” of the audience.
According to reports, in the past, such large-scale network communication guarantees were mainly for 4G users. , “Big Lotus” is facing the first large-scale communication guarantee mainly for 5G users
“Faced with higher communication guarantee needs, we start from the solution planning, and the first thing we do is to focus on the location. Sinking, 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, was lowered to a position 3 to 5 meters behind the audience seats. Each base station “performed 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”, ” 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 the antenna is adjustable, the signal coverage edge is clear, and it can focus on a relatively certain area. “My slave, I will help the young lady return to Tingfang Garden to rest first, and I will do this later.” Cai Xiu answered seriously. domain, and 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 functions and uses. These spaces are different, and there are servants hurriedly Nod, turn around and run. The area is 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 added new investment.About 1,000 small radio frequency transmitting stations have been installed to ensure that every space has an antenna. Lan Yuhua straightened her back in the rickety sedan and took a deep breath. Her eyes under the red hijab became firm. She was brave. Look straight ahead and face the future. room, strengthen 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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