Communication method and apparatus

Abstract

This application provides a communication method and a communication device. The method clearly defines the security algorithm selection process for LTM (Local Traffic Management) handover. After the target access network device obtains the security capabilities associated with the terminal device from the access and mobility management function based on the path switching response message, it can inform the candidate access network device for subsequent handover of the obtained security capabilities. This approach avoids the issue of increased LTM handover delay caused by inconsistencies between the security capabilities associated with the terminal device stored by the candidate access network device and those stored by the access and mobility management function during subsequent handover processes.

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