Zhangjiakou, China Economic Network, February 16 (Reporter Ma Changyan) "After several years of efforts, the communication guarantee of Zhangjiakou Division and the 'three divisions and one standard' in Beijing and Yanqing, we have really done it. Zhou Jingyao, secretary of the party group and director of the Hebei Provincial Communications Administration, summed up the communication guarantee situation of the Hebei Winter Olympics in an interview with reporters on the 16th.
The picture shows Zhou Jingyao, secretary of the party leading group and director of the Hebei Provincial Communications Administration, introducing the communications guarantee for the Hebei Winter Olympics. China Economic Network reporter Ma Changyan photographed
Zhou Jingyao introduced that since the start of the Beijing Winter Olympic Games, the communication network of Zhangjiakou Division and the international communication and public communication network, the macro station, room division, micro station and communication network special line in the core area of Chongli Event, as well as the communication network along the airport, high-speed rail, and high-speed line have excellent performance indicators and good signal coverage.
The reporter of China Economic Network came to the hebei Unicom Winter Olympic Games Communication Operation Support Frontline Headquarters and saw that the public mobile communication network of Unicom in Zhangjiakou Was displayed on the big screen, and the overall operation was stable and there was no failure.
So, what is the internet speed in Zhangjiakou? Xie Quan, member of the party group and deputy director of the Hebei Provincial Communications Administration, connected with the Support Team of China Unicom Genting Ski Park through the frontline command system of Hebei Unicom Winter Olympics Communication Operation Support, tested the real-time network speed, and showed that the download rate reached 1.64Gbps and the upload rate was 312Mbps.
The picture shows hebei Unicom Winter Olympics communication operation support front line command test real-time network speed. China Economic Network reporter Ma Changyan photographed
Holding a simple, safe and wonderful Winter Olympic event is inseparable from communication guarantee, and event information, wonderful moments, and Winter Olympic stories need to be transmitted through communication. As one of the Beijing Winter Olympic Games, Zhangjiakou shoulders the burden of ensuring communication support for the Winter Olympics in accordance with the requirements of "one standard for three competition areas".
However, at the beginning of the preparations for the Winter Olympics in Zhangjiakou, there was only 1 communication bureau, 33 base stations, and 5.5 kilometers of pipelines, with weak communication network infrastructure, low level of communication capabilities, difficult planning and design, and difficult construction environment conditions. In this context, how did Hebei achieve the construction of a Communication Support Pattern for the Winter Olympics that integrates Beijing and Hebei and "one standard in three competition areas"?
Zhou Jingyao said that different regions and standards are the same, which is extremely difficult and challenging for Zhangjiakou in Hebei Province. In particular, all the first-level communication trunk lines out of Beijing pass through Hebei, and Hebei Gongwei capital Beijing has a heavy responsibility to be a good political "moat" in the capital.
"Hebei communication people adhere to Chinese characteristics, the use of first-class technology, brick by brick, grass and tree, a pole and a tower are tailor-made, but in this land with weak basic conditions and poor construction environment, the world's leading communications construction grand blueprint has become the current construction results." Zhou Jingyao recalled the six-year preparatory process of the Winter Olympics communication guarantee, saying that hebei's information and communication industry adhered to planning and guidance, highlighted co-construction and sharing, fully completed the construction of the winter Olympic communication network infrastructure proposed by the Beijing Winter Olympics Organizing Committee at the end of August 2020, and strictly implemented the "three divisions and one standard" in the year and a half before the official start of the Winter Olympic Games, and continued to carry out "network measurement, network supplementation, excellent network, and network protection", so that the communication network service capacity of Zhangjiakou Region can achieve quantitative improvement and qualitative leap.
Gui Jinchen, deputy general manager of China Unicom's Zhangjiakou Branch, told reporters that the communication network of Zhangjiakou Division and the Beijing Division are "the same standard, the same construction, the same operation, and the same monitoring" to ensure that the communication services provided for the Beijing Winter Olympic Organizing Committee are optimal. Among them, China Unicom provides a communication network with dual-route, dual-node and dual-channel power supply protection. "If a node fails, the service can be reversed to another node without gaps or perception, fully ensuring the stability, security and reliability of the network."
The picture shows the computer room of the frontline headquarters of Hebei Unicom's communication operation support for the Winter Olympic Games
Zhangjiakou's landmark venue, the National Ski Jumping Center, "Snow Ruyi", has an elegant shape, but has a complex architectural environment, which brings many difficulties to communication support. Xiang Guanghui, deputy general manager of Hebei Unicom, recalled that in the face of the challenges of a complex environment, Hebei Unicom developed multi-band, multi-form 5G base station equipment, and built a 5G full-coverage network that can resist harsh conditions such as high cold and strong winds on the snow of the Winter Olympics, fully supporting the backhaul of broadcast signals, cloud live broadcast business platforms and other services. At present, the network download rate of "Xue Ruyi" can reach 1.2Gbps and the upload rate can reach 150Mbps to meet the needs of use.
"The geographical location and regional layout of the National Cross-Country Ski Center are also relatively special, and in order to maximize the coverage area and communication effect of the base station, the communication support team has traveled almost every hill suitable for the construction of the base station when selecting the site." Xiang Guanghui introduced that in order to facilitate the smooth use of 5G services by all personnel during the competition, the communication support team adopted the latest 5G equipment. For crowded areas such as temporary stands, 5G micro-stations are added for supplementary coverage.
The Beijing-Zhangjiakou high-speed railway is an important transportation route between Beijing and Chongli and an important window for 5G network experience. The 174-kilometer high-speed rail line with a total length of 5G coverage meanders 156 kilometers in Hebei. Among them, 11 tunnels with a total length of 49 kilometers need to lay out a set of 5G antennas every 100 meters. The three basic telecommunications enterprises of Mobile, Unicom and Telecom have been subcontracted in sections, and 216 shared network base stations, 48.1 kilometers of tunnel rooms, 207.8 kilometers of optical cables, and 13 optical cable handover boxes have been built.
Yang Zhaohui, deputy general manager of Hebei Mobile, said that Hebei Mobile combined with the actual scenario of high-speed rail, overcame the natural shortcomings such as fast speed, large upward penetration loss, and limited terminal uplink power, proposed a "3-dimensional and 8-strategy" high-speed rail uplink rate optimization scheme, accumulated 80 rounds of testing/coverage optimization, adjusted more than 2500 parameters, and improved the uplink rate of high-speed rail to 23 Mbps to ensure smooth live broadcast without Caton.
Since the preparation of the Winter Olympics communication guarantee, hebei province's information and communication industry has invested a total of 1.3 billion yuan, Zhangjiakou global transmission lines have reached 49,000 skin kilometers, and communication base stations have reached 23,000. Winter Olympic venues, hotels, airports, high-speed rail stations and important transportation hubs such as the Beijing-Zhangjiang high-speed railway and Yanchong-Chongqing Expressway have achieved full coverage of 4G and 5G signals. Zhangjiakou has built a total of 22 communication machine rooms, 272 communication base stations, and 910 picilicons of communication lines, achieving full coverage of 4G and 5G and optical fiber broadband access.
According to estimates, Zhangjiakou can carry 106,000 4G users and 111,000 5G users (the design user concurrency rate is 30%-40%, and the average bandwidth of a single user is 2-3M up and 8-10Mbps down), ensuring that the network is easy to use and unimpeded.
In order to do a good job in the communication guarantee of the Winter Olympics, various telecommunications enterprises in Hebei have invested more than 7,900 support personnel and more than 300 communication support vehicles in the Zhangjiakou competition area. China Economic Network reporter saw a number of emergency communication support vehicles in Chongli District, including the Jingzhongtong satellite emergency vehicle, portable satellite station, and 5G emergency command vehicle from Hebei Mobile, the dynamic emergency communication vehicle and large-scale integrated emergency communication vehicle from China Telecom, the dynamic emergency command vehicle from China Unicom, the emergency communication vehicle from the base station, and the emergency power supply vehicle from China Tower.
"In addition to maintaining communication and maintaining data synchronization with the on-site command of the network management center and the network optimization center, the 5G emergency command vehicle also has the functions of real-time monitoring and video backhaul of the communication guarantee surrounding environment, providing visual data support for on-site command and dispatch." Tang Yunfeng, deputy general manager of Hebei Mobile Network Department, said.
The picture shows hebei mobile 5G emergency command car China Economic Network reporter Ma Changyan photographed
While completing the smooth flow of the network, Hebei Communication System has continuously consolidated the foundation of network security and ensured "zero vulnerabilities" in network security. Up to now, the communication support system of Zhangjiakou Has cumulatively checked 172 network objects and 59 network systems involved in the Re-insurance of the Winter Olympics, rectified 112 network security problems, and handled 1155 network security threats to ensure the network security of the time and event communications.
The communication of the Winter Olympics cannot be stopped for a moment, and it cannot be interrupted for a moment. For the follow-up guarantee of communication in Zhangjiakou Division, Zhou Jingyao said at the end of the interview: "We will still adhere to good and guarantee well, please rest assured!" ”