China's first dual-star coordinated high-speed transmission field test for 6G was successful: the rate exceeded 1Gbps

According to news on June 20, China Telecom Satellite Corporation recently joined hands with Beijing University of Posts and Telecommunications, Galaxy Aerospace, China Academy of Information and Communications Technology, Zhanrui, etc. to jointly complete the first domestic 6G satellite-ground link field ground test at China Telecom Beijing Earth Station.

This test used core equipment such as independently developed satellite simulators, terminal simulators, and software-defined test platforms. Based on the project team formulating key technology verification plans and building an field test environment, it completed the domestic The first field high-speed information transmission test for 6G access network.

This test is based on the 3GPP NTN standard protocol, optimizing the low-orbit inter-satellite collaborative transmission mechanism to achieve high-rate air interface data merging on the terminal side, with a maximum rate of more than 1Gbps, reaching the industry standard leading level.

This will also provide technical support for my country’s future 6G demand research and satellite-ground integration networking.

As an important component of 6G, satellite communications will provide seamless, high-speed, and three-dimensional coverage capabilities around the world.

The project team has made breakthroughs in core technologies such as dual-star collaborative transmission architecture, multi-beam anti-interference coding, multi-satellite and multi-beam collaborative transmission, and completed the nationally produced payload and terminal principles. Prototype development.

This test simulated the technical feasibility of multi-satellite ground-based controlled beamforming under Doppler frequency shift, and completed microsecond-level multi-beam synchronization and air interface data merging as well as 8K video on the terminal side. Smooth playback explores future 6G terminal direct connection satellite application scenarios, laying the foundation for the next step of providing a wide range of services for vertical industries.

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