Circular 03: Data transmission solution of national satellite navigation stations of Vietnam

Specifically, according to Article 12 of the Circular No. 03/2020/TT-BTNMT of the Ministry of Natural Resources and Environment of Vietnam, data transmission solution of national satellite navigation stations is as follows:

- All national satellite navigation stations must have a stable internet connection to serve transmitting data to central control and processing stations. Internet connection must be designed specifically for data transmission of the station and not for any other purposes to ensure data security and safety and transmission bandwidth.

- In addition to primary internet connection which is FTTH cable (or Leased line), each national satellite navigation station must have a backup internet connection which is FTTH cable of an internet service provider other than the internet service provider providing the primary internet connection or use 3G/4G/5G connection solution in areas with stable 3G/4G/5G signal. Each FTTH connection must be provide with a static IP address to ensure stable data transmission.

- Central control and processing stations must be equipped with 2 internet connections which are FTTH cable (or Leased Line) provided by 2 different internet service providers. Each internet connection shall be provided with at least 1 static IP address. Both connections must have adequate bandwidth to receive data transmitted from satellite navigation stations and provide services for users continuous and uninterrupted.

Note: In order to guarantee quality of providing re33l-time kinematic services, average permissible latency for transmitting data from satellite navigation stations to central control and processing stations is <50ms for FTTH (or Leased Line) connection and <100ms for 3G/4G/5G connection.

View more details at the Circular No. 03/2020/TT-BTNMT of the Ministry of Natural Resources and Environment of Vietnam, effective from July 15, 2020.

Ty Na

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