Network residing method, network residing system and terminal

Abstract

The invention provides a network residing method, a network residing system and a terminal. The network residing method comprises the following steps: when that a trigger condition of a location area update is satisfied is detected, acquiring a working frequency point of a base station in an area where the terminal is located; sending a location area update request to a target base station corresponding to the working frequency point; acquiring an authentication random parameter fed back by the target base station; generating a first authentication parameter according to identification information of a subscriber identification card of the terminal, the authentication random parameter and a specified authentication algorithm, and generating a second authentication parameter which is different from the first authentication parameter; transmitting the second authentication parameter to the target base station; and judging whether the target base station is a pseudo base station or a core network base station according to a feedback instruction of the target base station specific to the second authentication parameter. Through the technical scheme of the invention, the probability that a user terminal resides in the pseudo base station is lowered; the interference of the pseudo base station on communication services of the user terminal is lowered; and the use security of the user terminal is improved.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular, to a network resident method, a network resident system and a terminal. Background technique [0002] With the development of communication technology, when the pseudo base station equipment is running, it usually operates at a higher power than the base station of the core network, thereby misleading the user terminal to reside in the pseudo base station network, causing the user to be unable to use the services provided by the operator normally. Short messages such as scams and advertisements sent by the user terminal not only affect the normal communication of the user, but may even cause financial losses to the user. [0003] In related technologies, the terminal performs neighbor cell measurement and cell reselection judgment according to the network protocol specification, and because the network authentication is a one-way authentication, the terminal does...

AI Technical Summary

Problems solved by technology

[0002] With the development of communication technology, when the pseudo base station equipment is running, it usually operates at a higher power than the base station of the core network, thereby misleading the user terminal to reside in the pseudo base station network, causing the user to be unable to use the services provided by the operator normally, and the pseudo base station is forced to Short messages such as scams and advertisements sent by the user terminal not only affect the normal communication of the user, but even cause financial losses to the user

[0003] In related technologies, the terminal performs neighbor cell measurement and cell reselection judgment according to the network protocol specification, and because the network authentication is a one-way authentication, the terminal does not authenticate the network, so the terminal cannot judge the network status. authenticity

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