US Patent Application 18222192. APPARATUS, SYSTEM AND METHOD FOR SECURITY MANAGEMENT simplified abstract

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APPARATUS, SYSTEM AND METHOD FOR SECURITY MANAGEMENT

Organization Name

NEC Corporation


Inventor(s)

Xiaowei Zhang of Tokyo (JP)

Anand Raghawa Prasad of Tokyo (JP)

APPARATUS, SYSTEM AND METHOD FOR SECURITY MANAGEMENT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18222192 titled 'APPARATUS, SYSTEM AND METHOD FOR SECURITY MANAGEMENT

Simplified Explanation

The patent application describes a network system with multiple Mobile Management Entities (MMEs) and a separate MME.

  • The first MMEs push security context for a user equipment (UE) to the second MME when the UE attaches to the first MME.
  • The second MME stores the security context.
  • During a switch-off procedure for the first MME, the first MME pushes the latest security context to the second MME.
  • The second MME updates the stored security context with the latest security context.
  • When the UE re-attaches to the first MME or is handed over from a different first MME, the first MME pulls the security context from the second MME.


Original Abstract Submitted

There is provided a network system including one or more first MMEs (), and a second MME () separated from the first MMEs (). In one of operation cases, the first MME () pushes, to the second MME (), security context for a UE () that attaches to the first MME (). The second MME () stores the security context. The first MME () further pushes the latest security context to the second MME (), during a switch-off procedure for the first MME (). The second MME () updates the stored security context with the latest security context. The first MME () pulls the security context from the second MME (), when the UE () re-attaches to the first MME () or is handovered from different one of the first MMEs ().

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