Key processing method, communication device, and storage medium

CN122122949APending Publication Date: 2026-05-29BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Filing Date
2024-09-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In sixth-generation mobile communication systems, existing technologies struggle to quickly generate keys associated with the home network when user equipment is roaming, leading to reduced communication security and complex key management.

Method used

By generating corresponding keys for the user equipment's serving network and home network, it ensures that keys related to the home network can be quickly generated even when roaming out of the home network. A unified key generation process and architecture are adopted to simplify key management.

Benefits of technology

It achieves secure isolation of communication between different networks, improves communication security, and simplifies the key generation and management process.

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Abstract

Embodiments of the present disclosure provide a key processing method, a communication device and a storage medium. The key processing method performed by a UE can include: generating a first key for a second node of a serving network of a user equipment (UE); generating a second key for a second node of a home network of the UE; wherein the first key is used by the second node of the serving network to generate a third key, the third key is used to protect the communication security between the UE and a third node of the serving network; the second key is used by the second node of the home network to generate a fourth key, the fourth key is used to protect the communication security between the UE and a third node of the home network.
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