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Emergency call based authentication method, device and system

An emergency call and equipment technology, which is applied in the transmission system, emergency/dangerous communication service, connection management, etc., can solve the problems of poor security of emergency calls, and achieve the effect of improving and ensuring safety

Active Publication Date: 2014-03-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Embodiments of the present invention provide an emergency call-based authentication method, device, and system, which are used to solve the problem in the prior art that when a user terminal sends an emergency call request to the network side in the case of emergency attachment, the network side does not security authentication of user terminals, resulting in poor security of emergency calls

Method used

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  • Emergency call based authentication method, device and system
  • Emergency call based authentication method, device and system
  • Emergency call based authentication method, device and system

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 2 As shown, it is a flow chart of an emergency call-based authentication method according to Embodiment 1 of the present invention, and the method includes:

[0049] Step 101: The MME receives the emergency call request message carrying the access network identifier sent by the user terminal, and sends the received access network identifier in the query request to the HSS.

[0050] Wherein, the access network identifier is the IMEI identifier of the user terminal.

[0051] In step 101, when the user terminal is under call restriction or does not have a SIM card / USIM card inserted, and needs to initiate an emergency call request, the user terminal carries its own IMEI identifier as the access network identifier in the emergency call request message and sends it to the MME .

[0052] Preferably, when receiving the emergency call request message sent by the user, the MME instructs the user terminal to report the access network identifier, so as to identif...

Embodiment 2

[0084] Such as image 3 As shown, it is a schematic structural diagram of an emergency call-based authentication device according to Embodiment 2. The device includes: a first receiving module 11, a second receiving module 12, a third receiving module 13 and a comparison module 14, wherein:

[0085] The first receiving module 11 is configured to receive the emergency call request message carrying the access network identifier sent by the user terminal, and carry the received access network identifier in the query request and send it to the HSS;

[0086]The second receiving module 12 is configured to receive the query result returned by the HSS that carries the verification information and the first authentication data, and the first authentication data is calculated by the HSS from the searched security key and the generated verification information, wherein , the security key includes a device key, and the device key is determined by the HSS according to the correspondence be...

Embodiment 3

[0098] Such as Figure 4 As shown, it is a schematic structural diagram of an HSS according to the third embodiment. The HSS includes: a receiving module 21, a first authentication data calculation module 22 and a sending module 23, wherein:

[0099] The receiving module 21 is configured to receive a query request sent by the MME, the query request includes an access network identifier, and the access network identifier is carried when the user terminal sends an emergency call request message to the MME;

[0100] The first authentication data calculation module 22 is configured to determine the device key corresponding to the access network identifier contained in the query request according to the correspondence between the locally stored access network identifier and the device key, and use the The security key of the key and the randomly generated verification information are calculated to obtain the first authentication data;

[0101] The sending module 23 is configured t...

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Abstract

The invention discloses an emergency call based authentication method, device and system. The main content of the authentication method comprises the following steps: respectively storing corresponding relation between an IMEI of a user terminal and an equipment key in the user terminal side and an HSS side, obtaining a safe key containing the equipment key from the HSS by an MME when the user terminal sends an emergency call request message to the MME, carrying out operation to random verification information to obtain first authentication data, receiving second authentication data which is obtained by computing the locally stored safe key and the received authenticated message and transmitted by the user terminal, comparing the first authentication data with the second authentication data; when the comparison results are the same, confirming that the authentication passes, and permitting that the user terminal accesses the communication network. Therefore, that the illegal user terminal accesses the communication network by the emergency call manner malignantly can be avoided, the security of the emergency call can be promoted, and the application security of the communication network can be ensured.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an emergency call-based authentication method, device and system. Background technique [0002] Emergency call is a unique voice service in the mobile communication system, which allows mobile users to call through the mobile communication network covered by the location when the mobile terminal is in a restricted call or the user identification card (ie SIM card) is not inserted. The emergency call center provided by the operator, such as: 120 center, 119 fire alarm, etc., among them, the situation that the mobile terminal is in a restricted call or the subscriber identification card (ie SIM card) is not inserted is called an emergency attachment situation. [0003] In the prior art, when the mobile terminal sends an emergency call to the network side in case of emergency attachment, the network side can usually ignore the mobile terminal's International Mobile Subs...

Claims

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Application Information

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IPC IPC(8): H04W4/22H04W8/04H04W12/04H04W12/06H04W4/90H04W12/041
CPCH04W76/007H04W12/06H04L29/06H04W4/90H04W76/50H04W12/71H04W12/03
Inventor 谢仕云曹岚健
Owner ZTE CORP
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