Importance

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Abstract

Method for handling failure of a MME (Mobility Management Entity) in a Long Term Evolution/Evolved Packet Core network or an Evolved Packet System, wherein multiple UEs (User Equipment) are attached to a first MME, which stores first context information representing the UEs attached to the first MME, the UEs are connected to one of multiple eNBs (evolved NodeB), the eNB may communicate with the first MME and with at least one neighboring MME, and the UEs may communicate with the first MME and with the at least one neighboring MME via the eNB, includes: detecting failure of the first MME, gathering information related to UEs attached to the first MME, restoring parts of the first context information at one or several of the neighboring MME using the gathered information, and re-establishing network internal logical connections with the one or several of the neighboring MME using the restored first context information.

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First Claim