CN117729186A

CN117729186A - GNODEB-based VONR voice forwarding system, method, equipment and medium

Info

Publication number: CN117729186A
Application number: CN202311734709.XA
Authority: CN
Inventors: 李季
Original assignee: Xi'an Xunzhitongda Technology Co ltd
Current assignee: Xi'an Xunzhitongda Technology Co ltd
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-03-19

Abstract

The application relates to the technical field of communication, in particular to a VONR voice forwarding system, method, equipment and medium based on GNODEB. Wherein, the system includes: the method is applied to a base station side and comprises the following steps: the system comprises an identity information module, a voice indication module and a data forwarding module, wherein the identity information module is used for acquiring user identity information of data to be forwarded, the voice indication module is used for determining voice starting and ending time of call flow data corresponding to the user identity information, and sending indication information of the voice starting and ending time to the data forwarding module and the execution module; the data forwarding module is used for sending the QCI1 data and the user identity information to the execution module; the QCI5 data and user identity information corresponding to the call data are sent to a number turning module; the number turning module is used for determining the call number and sending the call number to the execution module. And the execution module is used for restoring the QCI1 data into the call voice information and storing the call voice information according to the call number.

Description

GNODEB-based VONR voice forwarding system, method, equipment and medium

Technical Field

The application relates to the technical field of communication, in particular to a VONR voice forwarding system, method, equipment and medium based on GNODEB.

Background

VONR (Voice over New Radio), is an ultra-clear phone application in the 5G age. This technique allows a user to conduct a voice call under a 5G network. The VONR technology has the characteristics of high definition, low delay, high quality of voice call effect, and the like. The VONR technology can also provide wider coverage and faster connection speed so that a user can use voice call service in a wider area and can more quickly establish connection and keep a call stable. The VONR technology is an important innovation in the 5G era, and provides a better quality and more efficient voice call service for users.

GNodeB is a base station defined by 3GPP for a 5G (NR) wireless network design, all called the next Generation Node B, the next generation base station. It has independent network functions, and these functions implement support in compliance with the radio network (NR RAN) protocol specification in 3 GPP: PHY, MAC, RLC, PDCP, SDAP, RRC, NGAP layer protocol architecture and functionality. As shown in fig. 1, a schematic diagram of a 5G system structure specified by 3GPP is shown.

Voice forwarding is typically implemented on the terminal side and the core network side, but data is implemented on the terminal side and the core network side, increasing the data communication pressure on the terminal side and the core network side.

Disclosure of Invention

In view of this, embodiments of the present application are directed to providing a GNODEB-based VONR voice forwarding system, method, apparatus, and medium, to at least partially alleviate data communication pressures measured at a terminal side and a core network.

The first aspect of the present application provides a VONR voice forwarding system based on GNODEB, applied to a base station side, including: the system comprises an identity information module, a voice indication module, a data forwarding module, a number turning module and an execution module;

the identity information module is used for acquiring the user identity information of the data to be forwarded and sending the user identity information to the voice indication module and the data forwarding module;

the voice indication module is used for determining the voice start and end time of the call flow data corresponding to the user identity information and sending the indication information of the voice start and end time to the data forwarding module and the execution module;

the data forwarding module sends QCI1 data and user identity information corresponding to call data corresponding to the user identity information and the indication information to the execution module; the QCI5 data and user identity information corresponding to the call data are sent to the number turning module;

the number turning module is used for determining a call number according to the QCI5 data and the user identity information and sending the call number to the execution module.

And the execution module is used for restoring the QCI1 data into call voice information and storing the call voice information according to the call number.

In some embodiments, the identity information module is specifically configured to:

at least one of IMSI, TMSI, SUPI, SUCI is acquired as user identity information through an RRC message.

In some embodiments, the voice prompt module is specifically configured to:

receiving and storing the identity information sent by the identity information module, judging whether voice occurs according to whether PDU SESSION MODIFY REQUEST information or PDU SESSION SETUP REQUEST information in the NGAP protocol carries QOS FLOW of QCI1, and judging whether voice is finished according to whether PDU SESSION MODIFY REQUEST information or PDU SESSSION RELEASE CMD information in the NGAP protocol carries QOS FLOW of QCI 1; when the voice indication module judges that voice occurs, indication information for representing the beginning of the voice is sent to the execution module, and user identity information is added into the indication information; when the voice indication module judges that the voice is ended, indication information representing the voice is sent to the execution module, and user identity information is added to the indication information.

In some embodiments, the data forwarding module is specifically configured to:

and receiving and storing user identity information, identifying data of different QOS FLOWs, respectively transmitting the data on QOS FLOWs of QCI5 and QCI1 to a number turning module and an execution module based on the indication information, and carrying the user identity information in the transmitted data.

In some embodiments, the number turning module is specifically configured to:

and restoring the QCI5 data into an SIP message, acquiring the call number of the user according to the Registration message of the SIP, pairing the call number with user identity information carried in the data sent by the data forwarding module, and sending the pairing information to the execution module.

In some embodiments, the execution module is specifically configured to:

and receiving QCI1 data, receiving indication information for indicating the start and the end of voice, and receiving the call number and the pairing information sent by the number turning module. And restoring the QCI1 data into voice information according to the start time indication and the end time indication of the voice module, and acquiring the call number to which the voice information belongs according to the call number and the pairing information sent by the number turning module.

According to a second aspect of the present application, there is provided a VONR voice forwarding method based on GNODEB, applied to a GNODEB-based VONR voice forwarding system as described above, the method including:

the control identity information module is used for acquiring user identity information of data to be forwarded and sending the user identity information to the voice indication module and the data forwarding module;

controlling a voice indication module, determining voice start and end time of call flow data corresponding to the user identity information, and sending indication information of the voice start and end time to the data forwarding module and the execution module;

the control data forwarding module is used for sending QCI1 data and user identity information corresponding to the call data corresponding to the user identity information and the indication information to the execution module; the QCI5 data and user identity information corresponding to the call data are sent to the number turning module;

and controlling the number turning module, determining a call number according to the QCI5 data and the user identity information, and sending the call number to the execution module.

And the control execution module restores the QCI1 data into call voice information and stores the call voice information according to the call number.

A third aspect of the basic application provides an electronic device, including:

a processor and a memory for storing a program executable by the processor;

the processor is configured to implement the above-mentioned VONR voice forwarding method based on GNODEB by running the program in the memory.

According to a fourth aspect of the present application, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to perform a GNODEB-based VONR voice conversion method as described above.

The VONR voice forwarding system based on GNODEB provided by the present application is applied to a base station side, and includes: the system comprises an identity information module, a voice indication module, a data forwarding module, a number turning module and an execution module; the identity information module is used for acquiring the user identity information of the data to be forwarded and sending the user identity information to the voice indication module and the data forwarding module; the voice indication module is used for determining the voice start and end time of the call flow data corresponding to the user identity information and sending the indication information of the voice start and end time to the data forwarding module and the execution module; the data forwarding module sends QCI1 data and user identity information corresponding to call data corresponding to the user identity information and the indication information to the execution module; the QCI5 data and user identity information corresponding to the call data are sent to the number turning module; the number turning module is used for determining a call number according to the QCI5 data and the user identity information and sending the call number to the execution module. And the execution module is used for restoring the QCI1 data into call voice information and storing the call voice information according to the call number. In the scheme provided by the user, the forwarding of the call voice can be directly completed at the base station side without realizing voice forwarding by the terminal side or the core network side, so that the communication pressure and the data processing pressure of the core network side and the terminal side are reduced.

Drawings

The foregoing and other objects, features and advantages of the present application will become more apparent from the following more particular description of embodiments of the present application, as illustrated in the accompanying drawings. The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate the application and not constitute a limitation to the application. In the drawings, like reference numerals generally refer to like parts or steps.

Fig. 1 is a schematic structural diagram of a VONR voice forwarding system based on GNODEB according to an embodiment of the present application.

Fig. 2 is a schematic structural view of an embodiment of the present application.

Fig. 3 is a schematic structural view of an embodiment of the present application.

Fig. 4 is a flow chart of a VONR voice forwarding method based on GNODEB according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference numerals:

1. an identity information module; 2. a voice indication module; 3. a data forwarding module; 4. a number turning module; 5. and executing the module.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Summary of the application

SIP is a multimedia communication protocol formulated by IETF. It is a text-based application layer control protocol for creating, modifying and releasing sessions of one or more participants. SIP is an IP voice session control protocol derived from the internet, and has the characteristics of flexibility, easy implementation, convenient expansion, and the like. SIP is one of the important signaling protocols used in VONR technology to establish and maintain voice call connections.

The invention provides a new method for realizing VONR voice forwarding at a base station side based on GNODEB. The method can realize voice forwarding under the condition that the conversation of the users of both sides is not influenced and the conversation of both sides are not perceived. The voice indication module can judge the starting and ending time of the voice call under the SIP encryption scene.

Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.

Exemplary method

Fig. 1 is a schematic structural diagram of a VONR voice forwarding system based on GNODEB according to an embodiment of the present application. As shown in fig. 1, 2 and 3, the system is applied to a base station side, and includes: the system comprises an identity information module 1, a voice indication module 2, a data forwarding module 3, a number turning module 4 and an execution module 5;

the identity information module 1 is used for acquiring user identity information of data to be forwarded and sending the user identity information to the voice indication module 2 and the data forwarding module 3;

it should be noted that the user identity information is information playing a role in identification during data stream in the scheme provided by the application. According to the scheme provided by the application, when data flow is carried out among the modules, the matching relation among the data can be identified in a mode of carrying user identity information

The voice indication module 2 is configured to determine a voice start and end time of call flow data corresponding to the user identity information, and send indication information of the voice start and end time to the data forwarding module 3 and the execution module 5;

the data forwarding module 3 sends QCI1 data and user identity information corresponding to the call data corresponding to the user identity information and the indication information to the execution module 5; the QCI5 data and user identity information corresponding to the call data are sent to the number turning module 4; when the method is specifically executed, the data forwarding module can forward the data when the voice starts and stop forwarding when the voice ends.

The number turning module 4 is configured to determine a call number according to the QCI5 data and the user identity information, and send the call number to the execution module 5.

And the execution module 5 is used for restoring the QCI1 data into call voice information and storing the call voice information according to the call number.

By the scheme provided by the application, the forwarding of call data can be realized at the base station side, and the communication pressure and the data processing pressure of the core network side and the terminal side are reduced. Um (Um)

In some embodiments, the identity information module 1 is specifically configured to:

Specifically, the RRC (Radio Resource Control) message is a control message in the 5G network, and may be used to obtain user identity information in the 5G network, including IMSI, TMSI, SUPI, SUCI. The following are several methods for obtaining user identity information:

IMSI (International Mobile Subscriber Identity ): may be obtained by the login request information (e.g., authentication Request) in the RRC connection request message. In this message a value (S-TMSI) is included for identifying the identity of the subscriber, from which the corresponding IMSI can be queried.

TMSI (Temporary Mobile Subscriber Identity ): may be obtained through a TMSI information element in the RRC connection request message. The TMSI is a temporary mobile subscriber identifier corresponding to the IMSI, used in mobility management. In this information element a randomly generated TMSI value is included for identifying the user identity.

SUPI (Subscription Permanent Identifier ): may be obtained through the sui information element in the RRC connection request message. In 5G networks, SUPI is the only authentic user identifier. In the information element a value (sui) is included for identifying the identity of the user and configuring the security related parameters, by means of which the corresponding SUPI can be queried.

Sui (Subscription Concealed Identifier, subscription hidden identifier): can be used to replace SUPI to protect user privacy. May be obtained through the sui information element in the RRC connection request message. The information element contains a value for identifying the identity of the user, and the value is encrypted and anonymized, so that the personal privacy of the user can be protected.

In summary, the user identity information such as IMSI, TMSI, SUPI, SUCI can be obtained through the RRC message, and in practical application, appropriate identity information can be selected to obtain according to the need.

In some embodiments, the voice prompt module is specifically configured to:

receiving and storing the identity information sent by the identity information module 1, judging whether voice occurs according to whether PDU SESSION MODIFY REQUEST information or PDU SESSION SETUP REQUEST information in the NGAP protocol carries QOS FLOW of QCI1, and judging whether voice is finished according to whether PDU SESSION MODIFY REQUEST information or PDU SESSSION RELEASE CMD information in the NGAP protocol carries QOS FLOW of QCI 1; when the voice indication module 2 judges that voice occurs, indication information for representing the beginning of the voice is sent to the execution module 5, and user identity information is added into the indication information; when the speech indicating module 2 judges that the speech is ended, indicating information characterizing the end of the speech is sent to the executing module 5, and user identity information is added to the indicating information.

Specifically, according to the specification of the NGAP protocol, it is possible to determine whether voice occurs by determining whether the PDU SESSION MODIFY REQUEST message or the PDU SESSION SETUP REQUEST message carries QOS FLOW of QCI 1. If these messages carry QOS FLOW for QCI1, this indicates that the session needs to support voice calls. And when PDU SESSION MODIFY REQUEST message or PDU sequence RELEASE CMD message in NGAP protocol carries QOS FLOW of QCI1, it can be judged whether the voice is ended. If the messages do not carry QOS FLOW of QCI1, the voice call is ended, and corresponding network resources can be released.

QCI1 is a QoS class, corresponding to voice over real time (VoLTE) traffic. In a 5G network, when transmitting and receiving voice, the system allocates a specific QoS flow (e.g., QCI 1) to the voice call to ensure the quality of the voice call. Thus, by determining whether the PDU SESSION MODIFY REQUEST message or PDU SESSION SETUP REQUEST message carries QOS FLOW of QCI1, it can be determined whether a voice call is occurring, while by determining whether the PDU SESSION MODIFY REQUEST message or PDU sequence RELEASE CMD message carries QOS FLOW of QCI1, it can be determined whether the voice call is ended. This is important for optimization and management of network resources.

In some embodiments, the data forwarding module 3 is specifically configured to: and receiving and storing user identity information, identifying data of different QOS FLOWs, respectively transmitting the data on QOS FLOWs of the QCI5 and the QCI1 to the number turning module 4 and the execution module 5 based on the indication information, and carrying the user identity information in the transmitted data.

Specifically, the data forwarding module 3 is configured to identify data of different QOS FLOWs, send the data on QOS FLOWs of the QCI5 and the QCI1 to the number turning module 4 and the execution module 5, and carry user identity information in the sent data.

In some embodiments, the number turning module 4 is specifically configured to: the QCI5 data is restored into SIP information, the telephone number of the user is obtained according to the Registration information of the SIP, the call number is paired with user identity information carried in the data sent by the data forwarding module 3, and the paired information is sent to the executing module 5.

Specifically, in the 5G network, QCI5 corresponds to a common data service, and may be restored to a SIP message. The related data can be converted into a SIP message format by parsing the source IP and the target IP in the IP packet header, and the source port and the target port in the UDP protocol header, and parsing according to the SIP protocol format. In the SIP protocol, registration messages are used for user Registration, which includes the user's call number (also called SIP URI). The call number of the user can be obtained by analyzing the message and stored in the system. And according to the service requirement, pairing the acquired call number with the stored user identity information, and sending the pairing information to the execution module 5. Pairing information may be defined in a message format for subsequent processing and management.

In some embodiments, the execution module 5 is specifically configured to:

and receiving QCI1 data, receiving indication information for indicating the start and the end of voice, and receiving the call number and the pairing information sent by the number turning module 4. And restoring the QCI1 data into voice information according to the start time indication and the end time indication of the voice module, and acquiring the call number to which the voice information belongs according to the call number and the pairing information sent by the number turning module 4.

Specifically, in a 5G network, QCI1 corresponds to data of a voice over real time (VoLTE) service. QCI1 data may be obtained by parsing messages such as PDU session establishment request, PDU session modification request or PDU session release command in the NGAP protocol. In the scheme provided by the application, according to the start time indication and the end time indication of the voice module, the data packet sent by the data forwarding module 3 is restored to voice information: after the data and the voice start and end instruction information sent by the data forwarding module 3 are acquired, voice decoding and restoring operations can be performed, and corresponding voice files are generated in the system.

The following describes the solution provided in the present application with reference to a specific example: as shown in fig. 4, the method provided in the present application includes:

s401, an identity information module acquires IMSI information;

s402, the voice indication module judges that voice communication starts, and notifies the data forwarding module and the execution module of carrying identity information;

s403, the data forwarding module sends QCI1 data carrying identity information;

s404, the data forwarding module sends QCI5 information, carrying identity information;

s405, a number turning module acquires a call number according to SIP information in the QCI5 data and associates the call number with the identity information;

s406, the execution module restores the voice information according to the QCI1 data, and confirms the number of the voice information according to the carried identity information and the call number and identity information related information of the number turning module;

s407, the voice indication module judges that the voice call is ended, and notifies the data forwarding module and the execution module of carrying identity information;

s408, the forwarding module stops sending the QCI1 data of the identity information, and the executing module marks the end of the voice and stores the voice information with the call number classification record.

Specifically, the identity information module obtains the IMSI information, specifically, obtains the identity information of the terminal. And the identity information of the terminal is sent to the voice indication module and the data forwarding module. The data forwarding module sends the data on QOS FLOW of QCI5 plus the identity information to the number turning module. After receiving the data, the number turning module analyzes the number in the SIP message Registration and carries out association pairing on the number and identity information carried in the data. The voice indication module stores the received identity information and detects whether the NGAP message PDU SESSION MODIFY REQUEST or PDU SESSION SETUP REQUEST is received, and when the two messages are received, further detects whether the message carries QOS FLOW establishment of QCI 1. If the voice start instruction carrying the identity information is received, sending the voice start instruction carrying the identity information to the data forwarding module and the executing module. The data forwarding module stores the received identity information, and after receiving the voice start instruction, sends the data on QOS FLOW of QCI1 plus the identity information to the execution module. After receiving the voice start instruction sent by the voice instruction module, the execution module starts to receive QOS FLOW data of the QCI1 sent by the data forwarding module and restore the QOS FLOW data into voice information. And acquiring the call number to which the voice information belongs according to the call number and the identity information pairing information sent by the number turning module. The voice indication module detects whether the NGAP message PDU SESSION MODIFY REQUEST or PDU SESSION RELEASE COMMAND is received, and when the two messages are received, further detects whether the message carries QOS FLOW release of QCI 1. If the voice end instruction carrying the identity information is received, sending the voice end instruction carrying the identity information to the data forwarding module and the executing module. And when the data forwarding module receives the voice ending instruction, stopping sending the data on QOS FLOW of the QCI 1. And when the execution module receives the voice ending instruction, stopping receiving QOS FLOW data of the QCI1 sent by the data forwarding module, marking the end of the passing, and classifying and storing the voice information according to the call number.

Exemplary method

The application also provides a VONR voice forwarding method based on the GNODEB, which is applied to a VONR voice forwarding system based on the GNODEB, and comprises the following steps:

It should be noted that, based on the same inventive concept, the method and system provided in the present application may refer to the description in the system embodiment of the present application where no clarity is described in the method embodiment of the present application.

Exemplary electronic device

Next, an electronic device according to an embodiment of the present application is described with reference to fig. 5. Fig. 5 illustrates a block diagram of an electronic device according to an embodiment of the present application.

As shown in fig. 5, the electronic device 500 includes one or more processors 510 and memory 520.

Processor 510 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in electronic device 500 to perform desired functions.

Memory 520 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on the computer readable storage medium that may be executed by the processor 510 to implement the GNODEB-based VONR voice forwarding method and/or other desired functions of the various embodiments of the present application described above. Various contents such as category correspondence may also be stored in the computer-readable storage medium.

In one example, the electronic device 500 may further include: an input device 530 and an output device 540, which are interconnected by a bus system and/or other forms of connection mechanisms (not shown).

In addition, the input device 530 may also include, for example, a keyboard, mouse, interface, etc. The output device 540 may output various information including analysis results and the like to the outside. The output device 540 may include, for example, a display, speakers, a printer, and a communication network and remote output devices connected thereto, etc.

Of course, only some of the components of the electronic device that are relevant to the present application are shown in fig. 5 for simplicity, components such as buses, input/output interfaces, etc. being omitted. In addition, the electronic device may include any other suitable components depending on the particular application.

Exemplary computer program product and computer readable storage Medium

In addition to the methods and apparatus described above, embodiments of the present application may also be a computer program product comprising computer program instructions which, when executed by a processor, cause the processor to perform the steps in a GNODEB-based VONR voice forwarding method according to various embodiments of the present application described in the "exemplary methods" section of the present specification.

The computer program product may write program code for performing the operations of embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.

Furthermore, embodiments of the present application may also be a computer-readable storage medium, having stored thereon computer program instructions, which when executed by a processor, cause the processor to perform the steps in a GNODEB-based VONR voice forwarding method according to various embodiments of the present application described in the above "exemplary method" section of the present specification.

The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims

1. The VONR voice forwarding system based on GNODEB is characterized by being applied to a base station side and comprising the following components: the system comprises an identity information module, a voice indication module, a data forwarding module, a number turning module and an execution module;

the number turning module is used for determining a call number according to the QCI5 data and the user identity information and sending the call number to the execution module;

2. The GNODEB-based VONR voice forwarding system according to claim 1, wherein the identity information module is specifically configured to:

3. The GNODEB-based VONR voice forwarding system according to claim 2, wherein the voice prompt module is specifically configured to:

4. A GNODEB-based VONR voice forwarding system according to claim 3, wherein the data forwarding module is specifically configured to:

5. The GNODEB-based VONR voice forwarding system of claim 4, wherein the number turning module is specifically configured to:

6. The GNODEB-based VONR voice forwarding system of claim 5, wherein the execution module is specifically configured to:

receiving QCI1 data, receiving indication information for indicating the beginning and ending of voice, and receiving a call number and pairing information sent by a number turning module; and restoring the QCI1 data into voice information according to the start time indication and the end time indication of the voice module, and acquiring the call number to which the voice information belongs according to the call number and the pairing information sent by the number turning module.

7. A VONR voice forwarding method based on GNODEB, which is applied to the VONR voice forwarding system based on GNODEB as claimed in any one of claims 1 to 6, the method comprising:

controlling the number turning module, determining a call number according to the QCI5 data and the user identity information, and sending the call number to the execution module;

8. An electronic device, comprising:

a processor and a memory for storing a program executable by the processor;

the processor is configured to implement the GNODEB-based VONR voice forwarding method according to claim 7 by running a program in the memory.

9. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, causes the processor to perform the GNODEB-based VONR voice conversion method according to claim 7.