Recently, led by China Telecom Satellite Corporation, Ziguang Zhanrui joined hands with ZTE, vivo, Quectel, Penghu Wuyu, Baicaibang and other industry partners to take the lead in making a series of achievements in the fields of direct connection of mobile phones to satellites and satellite Internet of Things. A major experimental breakthrough in 5G NTN technology, using innovative technologies in reducing transmission delay and improving link throughput, greatly improving the ability of terminals to connect to satellite networks.
The technology of directly connecting mobile phones to satellites has greatly expanded the application scenarios of mobile phones, allowing smartphones to provide communication services directly through satellite signals. Recently, Ziguang Zhanrui participated in the first domestic field verification of 5G NTN (non-terrestrial network, non-terrestrial network) mobile phone direct connection satellite. The 5G NTN mobile phone is directly connected to the satellite air interface for uplink and downlink connection, and the successful intercommunication between two vivo mobile phones, as well as the business demonstration of sending and receiving text messages, the functions and performance meet expectations.
Compared with other mobile phone direct connection satellite communication technology routes, the 5G NTN technology route based on the 3GPP standard has obvious advantages in mobile phone terminal popularity, industry integration, and service richness. It is easy to realize interoperability with terrestrial cellular networks, and supports unified mobile Sex management and resource management will lead the development direction of star-earth fusion technology.
Figure: 5G NTN Field Verification Vivo mobile phone directly connected to satellite (from vivo)
The Internet of Things based on satellite communication can solve the pain points such as the inability to return information monitoring data in areas that cannot be covered by cellular communication signals, so as to realize the seamless real-time connection of all things, which has broad value. Recently, in Beijing Yanqing, Suzhou Dianshan Lake and other areas, Ziguang Zhanrui participated in the completion of field tests of several IoT application scenarios based on Tiantong satellites, including surface buoys, satellite messengers, and satellite-ground dual-mode trackers. The Zhanrui satellite communication chip and Quectel satellite communication module realize the real-time transmission of collected sensor data, emergency messages, and terminal location data to the cloud platform through satellites, and the effect is good.
Figure: Hydrology and water quality monitoring terminal based on 5G NTN (from Penghu Wuyu)
The above series of verifications are based on UNISOC’s upcoming first satellite communication SoC chip V8821. V8821 supports the R17 IoT NTN standard, supports S and L dual frequency bands, provides functions such as data transmission, text message, call and location sharing, has the characteristics of low power consumption, small area and high reliability, and can directly connect satellites and satellite objects for mobile phones. It provides a wealth of application services in areas such as Internet of Vehicles and Satellite Internet of Vehicles.
UNISOC has been actively investing in space-ground integration technology research and application practice, and has made key breakthroughs in standard formulation, technology research, and application verification in conjunction with many operators, equipment and terminal manufacturers, and research institutes in the industry. Recently, UNISOC has carried out research and development and testing of NR-NTN technology aimed at providing higher connection rates, and will further tap the value space of the development and application of NTN satellite communication technology, and promote the construction of ubiquitous connections, rich scenarios, and consistent services. Air-space-ground integrated information network.
As a world-leading platform-based chip design company, UNISOC adheres to technological innovation as the core, deeply cultivates 5G technology, and actively deploys 6G and other advanced technology pre-research, continues to tackle key key technologies and standardization work, and is committed to becoming a new generation of communication technology The leader of the industry, creating value for the industry and society, and connecting the world with chips.