This application provides a
satellite ephemeris configuration method, a service
support system, a
satellite network
system, a terminal device, a storage medium, a
chip system, and a program product, relating to the field of communication technology. This application writes
satellite ephemeris data into a user identification card (BIC), allowing the terminal device to obtain
ephemeris data from the BIC. This avoids the convenience, reliability, and security issues associated with manual operation, while also lowering the requirements for the terminal device's
deployment environment. It also addresses the problem of ephemeris data becoming invalid due to prolonged inactivity of the terminal device, eliminating the need for the terminal to be returned to the factory or undergo after-sales
firmware updates. Furthermore, when a user replaces their terminal device, the
new device can still obtain ephemeris data from the BIC and directly search and track the
constellation for which the user has registered. This application effectively lowers the barrier to obtaining valid ephemeris data upon terminal device activation, assisting terminal devices in quickly acquiring valid satellite ephemeris data, enabling satellite search and tracking, and improving the user's network access experience.