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Method and apparatus for ciphering called empty interval voice of beep-page between systems

A technology of voice encryption and implementation method, which can be used in security devices, secure communication, electrical components, etc., and can solve problems such as no implementation scheme.

Inactive Publication Date: 2011-07-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no specific implementation plan for how the serving MSC notifies the border MSC that it requires mandatory air interface voice encryption for the called party.

Method used

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  • Method and apparatus for ciphering called empty interval voice of beep-page between systems
  • Method and apparatus for ciphering called empty interval voice of beep-page between systems

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Embodiment Construction

[0034] The present invention will be described in more detail below with reference to the accompanying drawings and in combination with specific embodiments.

[0035] Such as figure 1 , the intersystem paging call of the specific embodiment of the present invention, the specific steps of forcing the called air interface voice encryption process are as follows:

[0036] Step 101: The serving MSC judges that the called party needs to be forced to encrypt the air interface, and finds that the called party is in the system boundary area, needs to start the intersystem paging, sends the intersystem paging message (ISPAGE) to the boundary MSC, and increases the secrecy mode parameter CMODES indication The boundary MSC implements mandatory air interface voice encryption to the called party;

[0037] Step 102: the border MSC sends a paging message to the base station subsystem BSS where the called user is located;

[0038] Step 103: The base station subsystem pages the called user, ...

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Abstract

The invention discloses an implement method and a device of called bear speech encryption in intersystem paging. The implement method includes a call establishment process which includes the following steps: A. a caller makes a call for a service mobile switching center; when the service mobile switching center judges that the call is intersystem paging for called enforced bear speech encryption,ISPAGE information is sent to a boundary mobile exchanging center, and the ISPAGE information is carried with confidential mode parameters; B. the boundary mobile exchanging center obtains called private long-code mask-code information by the confidential mode parameters and finishes the bear speech encryption of the called. The implement device comprises the service mobile switching center and the boundary mobile exchanging center. The service mobile switching center comprises a judge processing module. Based on the existing network structure, the invention resolves the problem that intersystem paging calling cannot carry out forced bear speech encryption of the called and has the advantages of small change of the existing network and good compatibility.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for realizing voice encryption of called air interface in intersystem paging (InterSystemPage, ISPAGE). Background technique [0002] The air interface voice encryption service refers to the communication between the mobile phone (MS, Mobile Station, mobile station) and the base station subsystem (BSS, Base Station Sub-system) through the CDMA private long code mask (CDMAPLCM, CDMA Private Long Code Mask) The voice stream of the air interface is modulated to prevent the voice in transmission from being eavesdropped. [0003] The air-interface voice encryption of the calling MS and the called MS is relatively independent, and both can independently request to use the private long code mask to perform air-interface voice encryption on the call at the local end and enter the secure call mode. [0004] Mandatory air interface voice encryption for the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/02H04K1/00
Inventor 朱振平
Owner ZTE CORP