Authentication vector acquisition method, home server and network system

Abstract

The embodiment of the invention provides an authentication vector acquisition method, a home server and a network system. The method comprises the following steps: sending a second acquisition request for requesting the acquisition of an authentication vector to a second network home server after receiving a first acquisition request which is sent by a first network functional entity and used for requesting the acquisition of the authentication vector required for carrying out authentication on a terminal; receiving the first authentication vector which is returned by the second network home server and obtained according to an SQN produced by the second network home server, obtaining the SQN according to the first authentication vector, and updating an AMF in the first authentication vector according to the network category of a first network located by the first network functional entity; and obtaining a second authentication vector according to the SQN and the updated AMF, and sending to the first network functional entity. The SQN is maintained by the network functional entity in the embodiment of the invention, thereby leading the SQN on the terminal to be consistent with the SQN received from a network layer, thereby solving the possible authentication resynchronization problem.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of wireless communication, and in particular to an authentication vector acquisition method, a home server and a network system. Background technique [0002] With the continuous development of wireless communication technology, during the process of evolution from Packet Switched Domain (hereinafter referred to as: PS) to system architecture evolution (hereinafter referred to as: SAE), the user's subscription data is stored in the home user server ( Home Subscriber Server; hereinafter referred to as: HSS), which includes 2G / 3G subscription data and evolved packet network (Evolved Packet System; hereinafter referred to as: EPS) subscription data, these data include authentication data, that is to say, the actual HSS The above is the ability to include a home location register (Home Location Register; hereinafter referred to as: HLR). When the user registers to the GnGp-Serving GPRS...

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Problems solved by technology

[0005] The embodiment of the present invention provides an authentication vector acquisition method, a home server and a network system, which are used to solve the defect in the prior art that the synchronization fails due to the inconsistency between the terminal and the SQN maintained by the SGSN or MME, so as to improve the success of the synchronization process Rate

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