| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus that allow a device to migrate between wireless services across multiple wireless networks.SOLUTION: The present invention enables storing and switching between multiple eSIMs, where each eSIM is specific to a different carrier network. By loading the appropriate eSIM, the user device can authenticate itself with a selected carrier rather than roaming. During roaming operation, user equipment can load the previously stored eSIMs. Selection of the eSIM can be done manually by the user or can be driven by the user equipment on the basis of desired context, such as carrier signal strength and cost-effectiveness. Support for multiple radio technologies allows universal connectivity for wireless devices, even spanning previously incompatible technologies such as GSM (Global Standard for Mobile Communications) and CDMA. |
