Management of security context in idle mode mobility between different wireless communication systems

摘要

A solution is provided for managing a security context in idle mode mobility of a wireless communication device between different wireless communication systems, including a first wireless communication system and a second wireless communication system. The first wireless communication system is a 5G / NGS system, and the second wireless communication system is a 4G / EPS system. This solution is based on obtaining a 5G / NGS security context (S1) and mapping the 5G / NGS security context to a 4G / EPS security context (S2). [Selection] Fig. 6A