Can a regular phone directly connect to a satellite to send messages? At the 2023 Zhongguancun Forum on May 30th, China Electronics Technology Corporation jointly released a major achievement titled "Integration of Beidou Satellite Communication into Public Smartphones and Industrialization", making this dream come true. In February of this year, the news of "donkey friend Gong'er Grassland getting lost in heavy snow and relying on mobile satellite communication to save oneself" spread throughout the internet. In the incident, the "donkey friend" used the built-in satellite communication function on his phone to send out a distress signal, accompanied by accurate coordinate information, and finally was successfully rescued. The key to achieving this function is the first domestic integrated RF baseband chip for smart phone Beidou short message communication that we have jointly developed. "Wang Xiaoling, Deputy Chief Engineer of China Electronics Technology Major Tasks, said that despite the chip being only one-third the size of a big rice grain, behind it is years of unremitting innovation by China Electronics Technology, China Ordnance, and mobile phone manufacturers. This chip overcomes key technologies such as fast capture and reliable decoding in the weak signal situation of the Volkswagen mobile phone application system, and innovatively implements the "one number dual network" design of Volkswagen mobile phones that "does not change cards, numbers, or add peripherals". After being inserted into the phone, it can support emergency communication, search and rescue needs in desert areas, maritime distress, earthquake rescue, and other situations without ground network coverage, Provide emergency communication guarantee measures for users in China and surrounding countries and regions, effectively solving the problem of "not in service area". At present, this chip can be connected to any mobile phone, and BeiDou has also connected the short message platform to the three major operators. Any mobile phone with this chip can connect to the BeiDou satellite and send messages to BeiDou. "Wang Zhenling, the chief expert in the navigation field of China Electronics Technology, said that this means that BeiDou short message applications have" flown into ordinary people's homes "and gradually become the" standard configuration "of smartphones. No matter where you are, you don't have to worry about "no signal" anymore. Just "carrying" your phone into your pocket is equivalent to hiring a free 24-hour "security guard" to escort you anytime and anywhere. Prior to this, the BeiDou satellite system, which supports short message transmission and reception, was only applied in professional fields such as disaster prevention and reduction, emergency rescue, marine fisheries, and disaster monitoring. Ordinary people can only use the positioning function of BeiDou navigation, "Wang Zhenling said. China Electronics Technology Corporation (CETC) adheres to independent innovation and deeply participates in multiple industry chain links such as system construction, terminal product development, application services, testing and certification in the construction and promotion of Beidou-3 short message communication. It is responsible for the construction of key subsystems such as large-diameter antenna systems, signal reception systems, and signal transmission systems in the "Beidou-3 Regional Short Message Communication Civil Application Service Platform" The integration of short message communication into the research and development of mass mobile phones, the development of integrated RF baseband chips for message communication mobile phones, the promotion of industry and regional services, and the construction of terminal testing systems. Technology continues to innovate and break through, and application scenarios continue to expand, "Wang Xiaoling said. Currently, the mass production of the first Beidou short message mobile phone chip in China has exceeded ten million, and the application technology in mobile phones has become mature. The technical team is also intensifying innovation, developing more Beidou Volkswagen application chips, promoting the integration of Beidou short messages with consumer grade products such as intelligent wearable devices and smart cars, and promoting the "Beidou Industry High" through practical actions