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Officially release China's independent "satellite phone", whose R&D Gosuncn Technology Group participated in
Gosuncn May 22,2018

Recently, China's first mobile communication satellite, "Satellite 01 of Tiantong No. 1", which our country has independent intellectual property rights, began its commercial operation, marking China is entering into the "Era of Mobile Phone" with satellite mobile communication. This not only makes “The number you dialed is not in the service area." such status become history, but also fills the gaps in domestic autonomous mobile communication system and breaks the dependence on foreign satellite mobile communication service. It has milestone significance.


Behind this, there’s unremitting efforts and pursuit of Gosuncn Technology Group’s R&D personnel for the development of China's satellite mobile communication industry.


In fact, as early as more than a year ago, at Xi 'an Tiantong Satellite Gateway Station, Gosuncn’s R&D team has made the national first call through satellite, becoming the first domestic enterprise made the first satellite call through “Tiantong No. 1”. The T series satellite phones created Gosuncn and China Telecom are also the first series of domestic all-network + satellite phones. When R&D personnel recalled the whole process of making the first call through satellite at Xi 'an Tiantong Satellite Gateway Station more than one year ago, they still feel excited, “the atmosphere is really very fervent, literally speaking, even making the eyes with tears."


It has made the first satellite call through “Satellite 01 of Tiantong No. 1”


"Satellite 01 of Tiantong No. 1" is a mobile communication satellite developed independently by China. It was successfully launched in Xichang Satellite Launch Center on August 6, 2016. This large capacity geosynchronous orbit mobile satellite is also China's first mobile communication satellite, which fills the gaps in domestic autonomous mobile communication system and thoroughly breaks the monopoly barriers of foreign satellite communication system.


"Generally speaking, it is quite common for satellite phones to be called after 3 months from a satellite being launched. However, after ‘Satellite 01 of Tiantong No. 1’ was launched, all parties are concerned about it, therefore, the R&D team is working overtime for debugging; and we hope to make the first satellite phone as soon as possible.” Bi Zehong, product head of Gosuncn, said.


On August 22, 2016, Gosuncn demonstrated to make a call by the satellite phone at Xi 'an “Tiantong No. 1” Satellite Gateway Station.


Through night and day, finally, the satellite phones of Gosuncn were debugged successfully on August 22, after 16 days from a satellite being launched. Gosuncn demonstrated the whole process of making calls by satellite phones through Tiantong Satellite Network, becoming the first domestic enterprise made the first satellite call through “Tiantong No. 1”.


"It was around 9:30 a.m.; and there were about 40 people onsite, including two of our R&D personnel, leaders of China Academy of Space Technology (CAST) and China Telecom, etc.. When I and another colleague each had a satellite phone in hands; and I made a call, enter 1740 XXXXXXX and pressed the dial key. After about 20 seconds, we heard another satellite phone’s bell ringing. The atmosphere is really very fervent, literally speaking, even making the eyes with tears." Recalling that day, Bi Zehong was still very excited. He said that the two of them were about 10m apart; and the entire conversation lasted 5 minutes with clear voice quality but no interruption of the entire communication link.


The satellite phones successfully connected with each other for the first time and lasted for 5 minutes.


Solve the emergency communication for disaster relief


It’s reported that, “Tiantong No. 1”, as a large capacity geosynchronous orbit mobile satellite, enjoys a wide coverage and strong communication ability and provides service with non-blind areas. It can provide communication services such as voice, data and video conference to mobile users such as vehicles, planes, ships and people.


In addition, the satellite mobile communication system can also produce good synergistic effect with Beidou System with Beidou System. Beidou’s high precision positioning + satellite mobile communication’s reliable communication will provide much more safety guarantees for marine activities, disaster relief, etc..


China Telecom is the only operator with a satellite mobile phone license to operate the “Tiantong No. 1” ground operation exclusively. Gosuncn Technology Group, as a satellite phone terminal provider, cooperates with China Telecom to create this series of all-network + satellite phones, which features such as miniaturization, being easy to carry, low working frequency signal transmission loss. They can realize the sky-earth integration and seamless connection. In the meantime, they can support the communication in the field network environment and the urban public network environment. They have the first auxiliary satellite search function. They can make satellite calls by one key. Their various wireless communication functions can guarantee reliable communication under field conditions, which means, people can make calls and surf the Internet no matter in any routes such as offshore oil exploration, forest protection. They thoroughly break the monopoly status of foreign satellite communication system. In addition, the unique function of SOS one key call for help can call for rescue in an emergency situation to save lives.


According to introduction, Tiantong Satellite Team of Gosuncn began to investigate and survey on satellite phones since 2015 and started to research and develop as well as invest such phones. Before the first attempt to connect the satellite phone and satellite, Gosuncn’s R&D personnel carried out work of R&D and debugging for 8 months, finally ensured the success connection of the satellite phone and satellite to make calls.


This satellite phone, from its development stage, has been paid highly attention to by relevant departments, and taken into “satellite project of MIIT Information industry development fund”. At the same time, it had the best overall performance during the border test of satellite terminals by our country and won the 2016 (METIS) “Innovation Award for Satellite Mobile Communication Terminals”.


After nearly two years of efforts, China Telecom releases this series of satellite phones to commercial markets. It fills the gaps in domestic autonomous mobile communication system and breaks the dependence on foreign satellite mobile communication service. CITIC Construction predicts that end users of our mobile communication satellite system will be more than 3 million in 10 years and the service range will cover disaster relief, personal communication, ocean shipping, offshore fishing, air passenger transport, polar expedition, international peacekeeping and other aspects.


Liu Shuangguang, Chairman of Gosuncn Technology Group, also said that, as a national high-tech enterprise, Gosuncn enjoys a group of creators of Chinese Dream who describes beautiful picture of future satellite mobile business with their continuous efforts. The group will continue to make efforts in the direction of satellite data terminals, satellite data acquisition terminals and ship satellite communication terminals, etc.


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