Each of the submarine optical cables, thinner than a human hair, is buried under the seabed, transmitting more than 95% of the world’s international data. The international submarine optical cable is like the densely packed blood vessels distributed on the earth. It is the blood vessel of the global Internet. With the characteristics of high speed, ultra-large bandwidth, and ultra-long-distance transmission, it satisfies the development of the global communication industry and becomes a global digital and integrated network. Important infrastructure, some people vividly call it the “Great Wall of the Sea”.
During the “two sessions” of the country this year, Chen Yingyu, a senior technical director of the network department of China Telecom Shantou Company on behalf of the National People’s Congress, put forward suggestions on optimizing the environmental impact assessment and approval of international submarine optical cable construction projects, and severely cracking down on illegal fishing operations in the submarine optical cable protection zone. Chen Yingyu believes that international submarine optical cable communication is the most important way for my country to realize network interconnection with major countries and regions in the world. With the further deepening of my country’s all-round opening up to the outside world, there is a higher demand for international Internet bandwidth, and the construction of international submarine optical cables will usher in an important development window period.
With the advent of the 5G era, the growth of international Internet traffic continues to increase, and the demand for data center interconnection and Internet bandwidth continues to grow. As a special product in optical cables, submarine optical cables will also usher in an explosive period.
In the field of submarine cable communication, China Telecom dominates among the three major operators. It is reported that China currently has three submarine optical cable landing points, namely Shantou, Shanghai and Qingdao. The first two are owned by China Telecom, and the latter is owned by China Unicom. The Shantou International Submarine Cable Landing Station is the backbone station and the only tandem station of the Asia-Europe, China-US and Asia-Pacific No. 2, Southeast Asia and Japan submarine cables, and is an important international circuit transfer center in the Asia-Pacific region.
“The interconnection level of international optical cables is directly related to the international communication level of a country. China Telecom connects the motherland’s north and south through the network of land, sea, air and space, and promotes global interconnection. China Telecom actively implements the national ‘Belt and Road’ strategy and promotes the construction of information infrastructure. The ‘information superhighway’ that connects China to the world is getting wider and wider.” Industry insider Ma Jihua said.
Undertake the “Belt and Road Initiative” and help the international communication network rank among the first echelons in the world
Submarine optical cables are an important means of contemporary international communication. The number of optical cables reflects the degree of connection between a country and the Internet. Since the official opening of China’s first submarine optical cable, the China-Japan Submarine Optical Cable, in 1993, submarine optical cables have gradually developed into the most important means of carrying international communications in China.
In 1996, China Telecom took the initiative to initiate the construction of direct submarine optical cables between China and the United States. This optical cable is jointly invested and operated by 40 operators from 9 countries and regions, including China Telecom, Japan KDD and NTT, and the United States AT&T and MCI. It started construction in 1997 and opened in 2000. It is a ring network with a total of nine landing points (my country’s Shanghai Chongming and Guangdong Shantou are all landed), with a total length of about 30,000 kilometers, which can solve the call needs of 1 million telephone lines. As the first direct submarine cable between China and the United States, the Sino-US submarine cable system was once the submarine cable with the largest capacity and the most advanced technology between China and the United States and East Asia, which has had a profound impact worldwide.
Since then, China Telecom once again initiated the construction of the Asia-Pacific No. 2 optical cable network (APCN2), with a total length of 19,000 kilometers and a total of 10 landing stations (including Chongming in Shanghai and Shantou in Guangdong). It was put into operation in 2001. This has further consolidated China Telecom’s position in the field of submarine cable construction and enhanced the international discourse power of Chinese operators.
In May 2015, China Telecom announced that it would jointly start the construction of the New Cross Pacific (NCP) project with six global partners including mainland China, Taiwan, South Korea, Japan and the United States. NCP submarine cable connects mainland China, Taiwan, South Korea, Japan, and goes east to the United States. After the project is completed, it will become the submarine optical cable with the largest transmission capacity and the smallest delay between Asia and North America.
At present, China Telecom’s international land and sea cables reach 72 countries and regions around the world, and has established five major traffic transfer centers in the world.
All-round communication services for land, sea, air and space, demonstrating the “smart power” of a network power
As the only basic telecom operator with a satellite communication license, China Telecom has a ubiquitous intelligent network covering land, sea, air and space, which can provide ubiquitous, high-speed, safe and reliable network services. On Antarctic glaciers, sky and ocean, plateau and Gobi, cities and countryside, planes and high-speed rail across space, China Telecom has built a network of land, sea, air and sky, wireless networks through submarine cables, land cables, satellites, 4G, 5G, and WiFi. ubiquitous communication network.
In the extremely cold Antarctic, China Telecom set up Tianyi base station in November 2014, thus becoming the first domestic operator to build a mobile base station in Antarctica.
In the East China Sea, China Telecom’s submarine cable monitoring station scans and grasps the operation status of the submarine cable at any time. Once a fault is found, professional submarine cable repair ships can quickly erect and repair submarine cables from the surface and high-tech submarine robots from underwater.
In the air, if you take China Eastern Airlines, Xiamen Airlines, China Southern Airlines, Hainan Airlines and other flights, China Telecom provides WiFi access on the plane through satellites, so you can enjoy the convenience of surfing the Internet on board.
On the winding “sky road”, China Telecom has already erected optical cables to Tibet, the “roof of the world”. At present, 100% of all counties and above urban areas in Tibet have achieved full optical network coverage. What’s more noteworthy is that China Telecom’s 5G network has also “climbed” Mount Everest.
In the vast cities and rural areas, China Telecom’s professional installation and maintenance personnel are using their skilled skills to set up optical fibers and base stations to provide high-speed information networks for the people.
China Telecom’s network construction layout fully demonstrates its strong land, sea, air and space network connection capabilities, as well as the ability and confidence to build a powerful network country.