China Telecom said today that existing 4G users do not need to change their CARDS, but can use 5G services in areas already covered by 5G signals by replacing them with 5G mobile phones, according to economic Daily News. China Telecom 5G SA Security Enhancement SIM card is mainly aimed at industrial application scenarios with higher security enhancement requirements, such as intelligent manufacturing, vehicle networking, telemedicine, smart city and other fields.
China telecom previously released 5 g SA security enhancements SIM card, the white paper, white paper puts forward the basic functional requirements, architecture, requirements, technical requirements, in detail elaborated the new 5 g mobility management, user privacy protection and safe authentication, GBA authentication, access control, 5 g 5 g USAT events such as function and the corresponding application scenario.
The white paper also pointed out that at the present stage, users access 5G network through 4G card, the existing 4G card lacks new functions and new card files and services defined in 5G standard, user identity data is transmitted in plaintext during communication, and location information is not accurate enough, which can no longer meet the information and security requirements of 5G network. With the in-depth development of 5G industry application, it cannot meet the requirements of various business development well, and users cannot enjoy the brand new experience and business services brought by 5G network.