In February 2022 when it was the traditional Chinese festival, the Beijing Winter Olympics, which attracted worldwide attention, smoothly started. This grand top international sports event gathered elite athletes from different countries of the world and presented amazing scenarios of the competitions. The relay of holy torch, all ceremonies, all scenarios in front of and behind the competition venues and application of various spectacular technologies have made this sports event become a “big wonderful stage” of international first-class science and technology outcomes. In this event “with elites from different areas”, the 1.4G private broadband trunking network, which made its début in the Winter Olympics, plays important roles as “communication expressway” in commanding emergency communications of the Winter Olympics. It also plays critical roles in supporting communications and scheduling command for transfer of torch relay, opening ceremony, scheduling of competition venues, whole process, all scenarios and parts of the closing ceremony. It provides crucial network support for smooth completion of the Winter Olympics. On this smooth and secure “communication expressway”, enormous data, signals and commands of the sports event are promptly delivered without “barriers”. They constitute a hidden and powerful “battle line” behind.

Shoulder important missions in succession in independent research and development in China

Beijing 1.4G private broadband trunking network is a digital network created based on the technical standard for B-TrunC with independent intellectual property in China. As the world’s first private TD-LTE network, it is also a digital private broadband trunking network that carries the most business systems and users in China. Since 2013, it has maintained steady operations and experiences major ordeals over a decade. Providing important support for communications, it is “safe, controllable, speedy, reliable, and colorful in businesses”. It fully demonstrates its “power” in multiple types of large-scale scenarios, including managing routine operations of cities, safeguarding major events, responding to emergencies.

Since 2019, Capinfo has entered the critical stage to make preparations for the Winter Olympics. As service provider of Beijing 1.4G private broadband trunking network, Capinfo Company Limited has been fully supporting smooth organization of the Winter Olympics over 3 years. It has promoted high-quality coordinated network construction up to high standards, widely expanded “infrastructure construction for the Winter Olympics”, made multiple networks “interconnected” beyond “geographical limitations”, optimized applications of multimedia functions, and developed extraordinary strengths of the 1.4G private broadband trunking network for serving international large-scale events.

Focus on laying a solid foundation for “new infrastructure construction of the Winter Olympics

Over three years, Capinfo has focused on expanding network coverage to fully guarantee high-quality communications for the Winter Olympics. It has created the 1.4G reliable, safe and controllable high-capacity and high-speed private broadband trunking network based on the technical standard for B-TrunC with independent intellectual property in China. It has completed the network construction for competition venues, service facilities, important roads and key areas of Beijing and Yanqing for the Winter Olympics. It has cumulatively built more than 500 macro base stations and prepared supporting facilities such as emergency communications vehicles. Approximately 200 base stations have been built for urban districts of Beijing within the fifth ring, the whole Chaoyang District, administrative office zones of sub-central business districts, suburban central districts, World Horticultural Exposition, and key areas of the Winter Olympics, including venues, special roads, service facilities and key supporting areas of the Winter Olympics. Performing “new infrastructure construction”, consolidating and expanding infrastructure not only extends network coverage to competition venues of the Winter Olympics, indoor and outdoor areas of the non-competition venues, but also widens network communications and contributes to “radiating effects”.

Realize “interconnection” beyond regional barriers

Capinfo has truly invested in technologies to “integrate” command scheduling between the main operation center and all venues of three major competition zones in Beijing, to realize “seamless connection” among “three networks and two areas”. By overcoming different technical difficulties and barriers, it has become a pioneer of the world who has developed, tested, constructed and deployed a system for interconnection of B-TrunC, TETRA and PDT. Capinfo had the 1.4G private broadband trunking network, 800M narrowband trunking network and 350M digital trunking network across areas for coordinated commands. Voice is clearly heard in phone calls, and voice quality is not worsened in phone calls between different systems. Being “safe”, “expedient” and “stable”, this private network is accessible to all areas in international events.

Expand functions for creation of a “smart terminal”

With the approach of the Winter Olympics, the application of “smart” and integrated technologies has optimized the private network over three years. The terminal of the 1.4G private broadband trunking network is like a hand-held “smart cellphone”. With diverse multimedia functions and friendly interfaces, it is easy to operate. It has made “integrated command scheduling” possible for synchronous image and voice transmission. The broadband trunking terminal primarily provided for the Organizing Committee of the Winter Olympics has functions for single and group voice and video calls, video dropup/push, multimedia messages, GPS/BeiDou positioning, recording, and visual command scheduling, it is featured by business concurrence and long service life. It has truly made “fields visible and commands accessible”. For application in the Winter Olympics, this special device has passed the stringent environment test at low temperature. It fully satisfies the requirements for application in the Winter Olympics, especially skiing and sliding centers of high mountains where it is extremely cold without “weakening but fully demonstrating its power”. 

Fulfill the mission for supporting competitions of the Winter Olympics

In supporting the Winter Olympics, the 1.4G private broadband trunking network, which made its début in the top international sports event, shouldered heavy tasks and fulfilled its missions. Its overall support was safe, steady and smooth. The private network has performed well in the Winter Olympics. 

This powerful “hidden battle line” has witnessed and firmly guaranteed multiple critical historical moments. During torch relay of the Winter Olympics, the private network acquired field high-quality HD images and transferred them to the headquarters of torch relay, to fully guarantee orderliness of “holy torch relay”. On February 4, the opening ceremony of the Winter Olympics was grandly held. The private network provided important support for command scheduling in the whole process of the opening ceremony, and smoothed communications for success of the opening ceremony. It continuously offered major technical support to command communications between the main operation center and venues of the Winter Olympics in multiple scenarios. As this sports event continues and in the final closing ceremony of the Winter Olympics, this private network will continue shouldering major missions to guarantee smooth completion of this sports event. 

As the main service provider and an important informationized state-owned enterprise in Beijing, Capinfo offers major support to the Winter Olympics, including dispatching an elite team of 149 members and preparing emergency communications vehicles/emergency repair vehicles. In several key occasions to which its elite teams are stationed, including main operation center and technology operations center, competition venues, airports and places where torch relay takes place, Capinfo has firmly built “expressways” and secure “high walls” for communication command and liaison. This “political, accountable and credible” group, with a strong sense of responsibility and cultural spirit, has fully demonstrated its good demeanour as a leading municipal information-based state-owned enterprise of Beijing in this international event.

(Source: Xinhuanet)