An access method and terminal

An access method and terminal technology, applied in the field of communication, can solve the problem that the terminal is affected by the fake base station and so on

Active Publication Date: 2021-11-19
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] An object of the embodiments of the present invention is to provide an access method and a terminal to solve the problem that the terminal is affected by a fake base station

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  • An access method and terminal
  • An access method and terminal
  • An access method and terminal

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or process comprising a series of steps or units. The apparatus is not necessarily limited to those steps or units explicitly listed, but may include other ste...

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Abstract

The embodiment of the present invention relates to an access method and a terminal, the method is applied to a terminal capable of accessing the first network and the second network, the access priority of the first network is higher than the access priority of the second network, and the method Including: receiving the radio resource control RRC connection rejection instruction sent by the base station, the RRC connection rejection instruction includes an indication field; determining the time when the base station sends the RRC connection rejection instruction and the information indicated in the indication field in the RRC connection rejection instruction; if the time and indication If the information indicated by the field satisfies the predetermined condition, accept the indication of the indication field but do not accept the adjustment of the second network access priority, and search for signals according to the first network access priority, which can prevent the terminal from being continuously affected by the 4G pseudo base station, and Access to the GSM pseudo-base station prevents access to the GSM pseudo-base station due to the lowering of the 4G access priority in some scenarios, while ensuring that it does not interfere with the process of the existing network.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technologies, and in particular to an access method and a terminal. Background technique [0002] LTE (Long Term Evolution, long-term evolution protocol stipulates that before security activation, some NAS (non-access stratum) signaling does not need integrity protection, which provides opportunities for the development of 4G (fourth generation mobile communication technology) pseudo base stations. At present 4G pseudo base stations are deployed on a large scale in densely populated areas and high-speed intersections, which has a certain impact on user communication; due to the two-way authentication and integrity protection of 4G, 4G pseudo base stations cannot monitor and attack users for a long time, and The 4G+GSM (Global System for Mobile Communications) pseudo base station cooperation scheme brings great hidden dangers to user safety, which in turn leads to the feasibil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/08H04W12/122H04W48/16H04W76/18H04W76/27
CPCH04W12/08H04W12/12H04W48/16
Inventor 王曦泽阮航王小旭
Owner CHINA MOBILE COMM LTD RES INST
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