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A privacy protection method for number change initiated by the network side

A privacy protection, network-side technology, applied in the field of privacy protection, can solve problems such as increasing difficulty, achieve the effect of wide application, avoid collision or conflict risks, and increase the difficulty of identity

Active Publication Date: 2021-04-13
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The current privacy protection schemes in international standards obviously cannot fully meet the above requirements, and the current existing solutions for users in key industries only stipulate that the user’s permanent identity (IMSI in 3G / 4G, SUPI in 5G) ) and the user's mobile phone number (MSISDN) and the double decoupling between the user's permanent identity and the user's temporary identity (GUTI), to increase the difficulty for attackers to capture the user's permanent identity on the access network and the visited network

Method used

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  • A privacy protection method for number change initiated by the network side
  • A privacy protection method for number change initiated by the network side
  • A privacy protection method for number change initiated by the network side

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Embodiment Construction

[0031] In view of the existing privacy protection solutions that may cause the user or other users to be unable to communicate normally, and may have requirements for accessing the network or accessing the network, the present invention provides a privacy protection method that initiates a number change on the network side , under the premise of realizing the double decoupling effect between the permanent identity and the mobile phone number, temporary identity and other information, it can not only ensure that the normal communication between the user and other users is not affected, but also does not impose any requirements on accessing the network and visiting the network. In order to meet the privacy protection needs of users in special industries.

[0032]The invention discloses a privacy protection method for number change initiated by the network side. First, the data management function of the core network side (UDM / UDR in 5G, HSS in 4G) generates a new cover identity f...

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Abstract

The invention discloses a privacy protection method for number change initiated by the network side. Firstly, the data management function of the core network side generates a new cover identity for a certain user; secondly, the unified identity management function of the core network side converts the new cover identity It is encrypted and transmitted to the UE side through the transmission channel; thirdly, after the UE receives the new cover identity from the network side, it only triggers the execution of the permanent identity change on the UE side in the idle state; finally, the UE side first uses the old identity in the idle state The permanent ID initiates the detachment process to release the user’s occupation of the old permanent ID, and then re-initiates the attachment process with the new permanent ID; so far, both the UE side and the network side use the new permanent ID to represent the user . The method of the invention can achieve the privacy protection effect of users in special industries, so as to meet the high security requirements of users in special industries.

Description

technical field [0001] The invention relates to a privacy protection method for number change initiated by a network side. Background technique [0002] The mobile communication system is an important public infrastructure today. It has two notable features of wide-area coverage and institutional closure. The former can provide users with wireless connection capabilities anytime and anywhere, and the latter can provide users with relatively secure communication capabilities. Therefore, more and more key industries rely on the wide-area coverage and security features of the mobile communication system to carry out their key services, and improve their service security through the security protection enhancement mechanism of the user plane of the mobile communication system. [0003] The mobile communication system is no longer only for general public users. 5G was designed to be oriented to vertical industry applications, which means that in addition to users, operators, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/02H04W76/30
CPCH04W12/02H04W76/30
Inventor 王俊田永春吴坤曾浩洋
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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