Grouping authentication method for narrowband Internet of Things

Abstract

The invention discloses a grouping authentication method of the narrowband Internet of Things, which comprises the following steps that: when a proxy server network element is added in a core networkof a narrowband Internet of Things, an MME and a proxy server carry out bidirectional authentication authentication, and after mutual authentication is successful, the MME grants related authority ofthe proxy server to terminal access authentication; when the terminal and the core network carry out EPS-AKA access authentication processes, the terminal sends a request message sent to the MME to the proxy server; the a proxy server carries out grouping, request information of a plurality of terminals is aggregated into a group message by taking a group as a unit and then sent to an MME, when the MME obtains an authentication vector of the group, the proxy server distributes the authentication vector of the group to terminals in the group, and when the terminal receives the authentication vector, the terminal responds to the authentication request and carries out authentication. Aiming at the condition that a large number of terminals are accessed to the network at the same time, the number of times of signaling interaction between the MME and the affiliation subscription server is reduced, and the possibility of congestion between the MME and the HSS is reduced.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a group authentication method of narrowband internet of things (NB-IoT). Background technique [0002] The latest NB-IoT network of the Internet of Things is simplified on the basis of LTE. In the NB-IoT protocol, the authentication mechanism used is the EPS-AKA authentication mechanism of LTE. The EPS-AKA authentication mechanism is also the security basis of the NB-IoT network, which ensures the communication security of the terminal, completes the two-way authentication between the terminal and the network, and negotiates the keys used in the signaling channel and data channel. When each terminal accesses the network, it must pass EPS-AKA authentication to ensure that both the terminal and the MME are legal. [0003] In the EPS-AKA authentication process, the terminal, the mobile management entity MME and the home server HSS are mainly involved, and ther...

AI Technical Summary

Problems solved by technology

When a large number of NB-IoT terminal devices access the network at the same time, each device needs complete EPS-AKA authentication every time it is connected, which will lead to signaling congestion between MME and HSS

When this happens, there is still room for improvement in the certification process

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