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Method for realizing ringback tone or prompt tone in enciphered communication system

An implementation method and technology of a communication system are applied in the implementation field of ringback tone or prompt tone in a code division multiple access encrypted mobile communication system to achieve the effect of simple process specification

Inactive Publication Date: 2006-10-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for realizing ring-back tone or prompt tone in an encrypted communication system, which overcomes the problem of implementing ring-back tone or prompt tone in an existing encrypted communication system

Method used

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  • Method for realizing ringback tone or prompt tone in enciphered communication system
  • Method for realizing ringback tone or prompt tone in enciphered communication system

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Experimental program
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Effect test

Embodiment Construction

[0016] The realization scheme of the present invention is realized through two service negotiation processes between the base station system and the mobile station. In the first business negotiation, the normal voice negotiation function is completed, and the ringback tone and prompt tone are correctly listened to; the second business negotiation, the conversion of the mobile station from normal voice to encrypted voice / data is realized, thereby establishing an encrypted communication channel. For the called mobile station, since there is no need to listen to ringback tone and prompt tone, it can directly paging and business negotiation in encrypted voice / data mode. The realization main method of ring-back tone or prompting tone in the encryption communication system of the present invention comprises: the first step: mobile station calls out with encryption service option, and the call of this encryption service option adopts the parameter of common speech mode; Second step: s...

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Abstract

The invention discloses a method for implementing ring-back tone or prompt tone in an encrypted communication system. The implementation method includes: the first step: the mobile station initiates a call with an encrypted service option, and the call of the service option adopts an ordinary voice mode Parameters; Step 2: Initiate a call and enter the basic channel, and negotiate the normal voice service for this encrypted service option; Step 3: After the negotiation of the normal voice service is successful, the base station sends an assignment completion message to the switch, and the switch gives the mobile The station plays ringback tone and prompt tone; Step 4: The mobile station goes off-hook, the switch notifies the base station that the mobile station has gone off-hook, and the base station initiates an encryption service negotiation to the mobile station with the encrypted voice service option; Step five: The encryption service negotiation succeeds Afterwards, the mobile station enters the encrypted conversation working state and starts encrypted conversation communication. The invention successfully realizes the function of listening to the ringback tone or the prompt tone in the encrypted communication system, and the process specification is simple, does not need to add hardware, and does not affect other normal functions and processes of the system.

Description

Technical field: [0001] The invention relates to a method for realizing a ring-back tone in an encrypted mobile communication system, in particular to a method for realizing a ring-back tone or a prompt tone in a code division multiple access encrypted mobile communication system. Background technique: [0002] In the military encrypted communication system, in order to ensure the information security of the military mobile communication, it is necessary to support end-to-end encrypted communication in the system, that is, the interconnection with the confidential subsystem. In the CDMA cellular mobile communication system, encrypted voice / The data information provides a special (without encoding / decoding and encryption / decryption processing) transmission channel, and the security subsystem completes the military's own encryption algorithm definition, encryption / decryption processing, key distribution and management, to ensure the realization of true Encrypted communication...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/20H04B7/26H04L9/00H04L9/28H04W4/16H04W12/03
Inventor 周强刘英男蔡安
Owner ZTE CORP