China's Space Program Thread II

by78

General
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escobar

Brigadier
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  • 1,296 satellites in the first phase will be completed in 2024-2027
  • 648 GEN1 satellites by the end of 2025 to provide regional network coverage. Shanghai Engineering Center for Micro satellites (SECM) is responsible for the development of 324 satellites. The first batch of 18 satellites were all developed by SECM
  • 648 GEN2 satellites in 2026-2027 to provide global network coverage
  • In the future, satellites in lower orbit (300 or 500 kilometers) will be capable of providing more advanced applications such as direct mobile phone connection and broadband and narrow band Internet of Things.
  • 5 Test satellites launched : KL-Alpha A&B in Nov 2019 and KL-Beta A&B in August 2021
  • Frequency in space need to apply to the International Telecommunication Union. Based on the principle of "first come, first served", whoever applies first will enjoy the priority use of this frequency. After applying for the frequency and orbital position, the first satellite must be launched within 7 years, the total number of launches must reach 10% within 9 years, the total number of launches must reach 50% within 12 years, and the entire constellation must be launched within 14 years. G60 has the world's top two Ka-band resources, with priority ahead of the US Star link.
 
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taxiya

Brigadier
Registered Member
You think the new G60 network will be inside or outside of the great firewall?
Both inside and outside. It is nothing special of building a gateway/national router to separate sections of network. Satellite is just cell tower higher up, they are useless unless they reach ground stations which are located inside sovereign states who can choose to enforce restrictions.
 

madhusudan.tim

Just Hatched
Registered Member
Both inside and outside. It is nothing special of building a gateway/national router to separate sections of network. Satellite is just cell tower higher up, they are useless unless they reach ground stations which are located inside sovereign states who can choose to enforce restrictions.
With laser inter-satellite links and direct to cell satellite internet services, you can avoid building ground stations across the world.
 

taxiya

Brigadier
Registered Member
With laser inter-satellite links and direct to cell satellite internet services, you can avoid building ground stations across the world.
A low volume of data of VIP customer can be relayed through satellites but doing so will lower the overall throughput and limiting the total number of UEs and their bandwidth. You can do it, but a commercial operator will avoid doing so.

Example, UE1 talks to Sat1 which pass the data to ground station and internet forward. Without this ground station, Sat1 will have to pass on to Sat2 and 3 etc. to eventual ground station. This will reduce the bandwidth and channel resources for Sat2 and Sat3 to serve their coverage areas. The more UEs do this, the more congested the network becomes. Now times this example by thousands Sats and hundreds of thousands of UEs, you get the picture.

That is also why a proper network involves dedicated high orbit dedicated relay satellites such as 6G space section, or G60 and GW are doing.

Remember that the original question was about "great firwall", not only about technical feasibility. It is very important to remember that these networks are operated under national and international regulations. Operators and owners of the space sections are subjected to national laws, they would make themselves criminals if their gateway breaks their license. For example, if spaceX has no operational license in a country but letting its user located inside that country to pass data outside the country, spaceX will be carrying out a crime of smuggling data out of a country, no difference from national law (EU, US, China etc.) mandating all data center being physically within their borders.
 
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Xiongmao

Junior Member
Registered Member
The other thing is that some people think that a system like Starlink is doomed to failure. See this video here:


I will summarize it for you, it basically says that unless you live out in the bush with no other viable means of internet access, then Starlink is not a cost effective solution. For the average person living in a town or city, there will be other faster,cheaper and more reliable alternatives to Starlink. Wouldn't G60 face the same limitations?
 
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