Huawei Mate 60 successfully implemented a satellite Internet test, demonstrating the extremely high downlink speed of China Mobile's 'Star System' reaching 5Mbps

China Mobile Research Institute cooperated with industrial partners to develop a satellite-based core network called the "Star System" and successfully passed the whole-satellite ground test and space environment adaptability test. This innovation brings new vitality to the field of low-orbit satellite Internet.

As a key component of the low-orbit satellite Internet, the spaceborne core network assumes the important task of on-orbit data forwarding services. In order to meet the needs of satellite Internet for low cost and high reliability, China Mobile is based on the SBA architecture of the 5G core network and adopts domestic industrial-grade components and Linux operating system to design a high-reliability, flexible and on-orbit reusable system. Software and hardware system with architectural characteristics. This innovation not only realizes the independent controllability of the satellite core network, but also demonstrates China's technical strength in the field of satellite communications.

From the official account of China Mobile Research Institute

According to the editor’s understanding, in view of the characteristics of low-orbit satellites’ fast movement and wide coverage, China Mobile The satellite core network has been optimized and basic 5G process capabilities including session management, mobility management, and QoS guarantee have been improved. At present, the spaceborne core network has passed a series of rigorous environmental tests, including mechanics, high and low temperature, thermal vacuum, electromagnetic compatibility and aging, as well as performance tests in wireless environments, ensuring the stability and stability of its on-orbit operation. reliability.

During the test, China Mobile and its partners simulated the trajectory of the satellite at an orbital altitude of 550Km, and successfully built an end-to-end link from the test terminal to the satellite core network. The test terminal uses Huawei Mate 60 series mobile phones, which support Beidou satellite two-way communication. The actual measurement results show that in the on-board regeneration mode, the satellite core network shows excellent performance, with both downlink and uplink rates reaching the expected level, and the on-board forwarding delay is extremely low. This lays a solid foundation for the future provision of broadband services for mass mobile phones and industry terminals.

China Mobile stated that the success of this test verified the feasibility of the satellite core network in orbit and achieved end-to-end full link connectivity and stable data transmission. This is of great significance to the research and application of mobile phone direct connection to low-orbit satellite technology and the evolution of related standards.

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