KR100786651B1 - Method and System for Providing Multimedia Ring Back Tone Alternative Service by Using Service Node - Google Patents

Abstract

The present invention relates to a method and system for providing a ringback tone substitute sound service using a service node method.

The present invention provides a common signal system comprising a calling mobile terminal for requesting a voice call, receiving and outputting a ringback tone replacement sound, an incoming mobile terminal receiving the voice call, a signal point, and a signal link. A system for providing a ringback tone substitute tone service using a service node method at a caller side including a line signal network No. 7 and a web server providing ringtone tone substitute sound sources, wherein the calling mobile terminal is connected to a call path When the incoming mobile communication terminal is subscribed to the ringback tone replacement tone service, the multimedia ringback tone terminal flag for determining whether the calling mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone ( An outgoing mobile telecommunication switching center requesting an ISDN User Part (ISP) call including a Flag; When the ISUP call is requested, it is determined whether the calling mobile communication terminal supports the general codec ringback tone or the multimedia codec ringback tone by using the multimedia ringback tone terminal flag to convert the ringback tone substitute sound source into a corresponding sound source. A service node converting and transmitting to the calling mobile communication terminal and connecting the ISUP call; And a terminating mobile telecommunication switching station for connecting the service node and the ISUP call and paging the terminating mobile communication terminal to provide a ringback tone replacement sound service using a service node method. Provide a system.

According to the present invention, by providing a ringback tone replacement sound service using a service node method, a user can be provided with a high quality ringback tone replacement sound service, and a mobile communication company adds only a service node while maintaining an existing system. It provides the effect of reducing the investment cost and efficient network configuration.

Ringback Tone, Multimedia, Service, Node, ISUP

Description

Method and system for providing ring back tone alternative sound service using service node method {Method and System for Providing Multimedia Ring Back Tone Alternative Service by Using Service Node}

1 is a block diagram showing a schematic configuration of a system for providing a ringback tone substitute sound service using a service node method according to a first embodiment and a second embodiment of the present invention;

2 is a flowchart illustrating a method for providing a ringback tone substitute tone service using a service node scheme in a caller according to a first embodiment of the present invention;

3 is a flowchart illustrating a method for providing a ringback tone substitute sound service using a service node method according to a second embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: outgoing mobile communication terminal 112: incoming mobile communication terminal

120: mobile communication network 180: Internet

182: Customer Care Center 184: Web Server

The present invention relates to a method and system for providing a ringback tone substitute sound service using a service node method. More specifically, upon receiving an ISUP call request from a service node, it is determined whether an outgoing mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone by using a multimedia ringback tone terminal flag to convert the ringback tone substitute sound source into a corresponding sound source. The present invention relates to a method and a system for transmitting a multimedia ringback tone terminal flag to a mobile communication switching center and connecting an ISUP call to provide a voice call service.

BACKGROUND With the rapid development of computer, electronic and communication technologies, various wireless communication services using wireless communication networks have been provided. The most basic wireless communication service is a voice call service that allows wireless communication between mobile subscribers using a mobile communication terminal regardless of time and place. In recent years, a wireless data service has emerged, which allows a mobile communication subscriber to perform data communication using a wireless communication network while the mobile subscriber is moving.

Accordingly, the mobile subscribers can freely move anywhere at any time by using the voice call service and make voice calls with the other party, as well as various information necessary for life using the wireless data service, for example, news, weather, sports, and securities. , Exchange rates, traffic information, etc. can be provided while moving in a variety of forms, such as text, voice, images.

Recently, a so-called ringback tone replacement sound service has been developed to listen to the caller's mobile terminal by calling the caller with various music and voices designated by the called party or caller. I am getting it. This ringback tone replacement tone service is a service that provides a ringtone designated by the called party or the caller to the caller's mobile terminal, and is a modern voice instead of a simple sound such as "following", which is normally generated when a call is connected. It is a service that can be used as a substitute for ringback tone as well as the voice of the called party or caller, such as bird sound and water sound.

As the ringback tone replacement sound service is provided, the caller can feel auditory satisfaction by listening to the sounds of various sound sources instead of listening to a uniform mechanical ringback tone.

The ring back tone replacement tone service is typically provided to a mobile communication terminal in a mobile communication network implemented by a mobile communication system such as a code division multiple access (CDMA) 2000 system and a wideband CDMA (WCDMA) system.

In the mobile communication network, the enhanced variable rate codec (EVRC), which is generally referred to as "EVRC", is adaptive for providing the aforementioned ringback tone replacement sound service. A variable rate voice codec (AMR) is used, such as an adaptive multi rate codec (AMR). The speech codec is designed for maximizing channel efficiency to detect the sounding section and the silent section, generate the appropriate codebook, and provide the voice service at the minimum bit rate through mapping.

However, variable rate speech codecs such as EVRC and AMR apply the same logic to sound sources such as music with little silence section, and encode sound sources using the provided voice code book. )do. On the other hand, if a sound source such as music is mapped to a voice codebook and encoded, the sound source is encoded according to a human voice pattern, thereby ignoring various patterns appearing in the music during encoding, and as a result, a coding error occurs. Reduces the quality of. Thus, the variable rate speech codec described above is not suitable for encoding sound sources in the form of audio such as music.

In order to solve the problem of the variable rate speech codec, a sound source correction scheme has been developed and widely used. That is, a content provider (CP) that provides a sound source extracts a sound source from a high-quality music such as a compact disk (CD) and modifies and encodes the sound source to be suitable for a voice codec such as EVRC. Minimize damage to sound sources.

This method of sound source correction is dependent on the preprocessing processing considering the characteristics of the EVRC codec or the manual work of the sound engineer. However, these operations can supplement the quality of the ringback tone substitute sound service through the EVRC codec to the level of the voice quality, but there is a problem in that the quality of the ringback tone substitute sound service is improved to high quality.

On the other hand, it is most effective to provide a ringback tone replacement sound by encoding a sound source using a multimedia codec and providing ringback tone replacement sound. However, there are some technical issues that must be preceded for this.

As a technical problem, first, a multimedia codec suitable for a voice channel of a mobile communication terminal should be modified and applied. For example, 8 Kbps voice channel is used for the voice channel of the CDMA 2000 system, and 12.3 Kbps voice channel is used for the Global System for Mobile Communications (GSM) system. It should be able to provide ring back tone replacement service with improved quality by adjusting to the transmission speed.

Second, the service section is divided into ringback tone replacement sound service section and voice call section, and multimedia codec is applied in ringback tone replacement sound service section, and voice codec is applied in voice call section. The terminal should be able to decode and play the sound source with the appropriate codec.

Third, a sound source suitable for a multimedia codec applied in a mobile communication terminal and a mobile communication network should be produced and provided.

In summary, in order to provide a high quality ringback tone replacement sound service, it is essential to apply a multimedia codec and a voice codec to the sound source by appropriately changing the multimedia codec and the voice codec in each section. That is, it is necessary to provide a ringback tone replacement sound service by selecting a codec to be adaptively applied according to the type of service such as a ringback tone replacement sound service or a voice call service to a mobile communication network and a mobile communication terminal. However, until now, no technology has been developed to provide ringback tone replacement service in this manner.

In order to solve the above-mentioned problem, the present invention, upon receiving an ISUP call request from a service node, determines whether an outgoing mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone by using a multimedia ringback tone terminal flag. The purpose of the present invention is to provide a method and system for converting a back tone replacement sound source into a corresponding sound source and transmitting it to an outgoing mobile terminal, transmitting a multimedia ringback tone terminal flag to a mobile communication exchange station, and connecting an ISUP call to provide a voice call service. There is this.

Accordingly, according to a first object of the present invention, an outgoing mobile terminal for requesting a voice call, receiving and outputting a ringback tone replacement sound, an incoming mobile terminal for receiving the voice call, a signal point, and a signal link are configured. A system for providing a ringback tone substitute tone service using a service node method, comprising a common line signal network No. 7 providing a common line signaling method and a web server providing a ringback tone substitute sound source, the system comprising: When the mobile communication terminal and the call path are connected, after checking whether the incoming mobile communication terminal is subscribed to the ringback tone replacement tone service, it is determined whether the calling mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone. Outgoing mobile communication requesting ISUP (ISDN User Part) call including a multimedia ringback tone terminal flag Exchange country; When the ISUP call is requested, it is determined whether the calling mobile communication terminal supports the general codec ringback tone or the multimedia codec ringback tone by using the multimedia ringback tone terminal flag to convert the ringback tone substitute sound source into a corresponding sound source. A service node converting and transmitting to the calling mobile communication terminal and connecting the ISUP call; And a terminating mobile telecommunication switching station for connecting the service node and the ISUP call and paging the terminating mobile communication terminal. Provide a system.

According to a second object of the present invention, an outgoing mobile communication terminal requesting a voice call, receiving and outputting a ringback tone replacement sound, an incoming mobile communication terminal receiving the request for the voice call, a signal point, and a signal link are composed of common lines. Claims [1] A system for providing a ringback tone substitute tone service using a service node method in a called party including a common line signal network No. 7 providing a signaling method and a web server providing a ringback tone substitute sound source. When a terminal and a call path are connected, an ISDN User Part (ISP) call including a multimedia ringback tone terminal flag (flag) for determining whether the calling mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone is generated. Requesting originating mobile switching center; When the ISUP call is requested, after checking whether the terminating mobile communication terminal is subscribed to a ringback tone replacement tone service, connecting the ISUP call including the multimedia ringback tone terminal flag and paging the terminating mobile communication terminal ( An incoming mobile telecommunication switching station; And when the incoming mobile telecommunication switching center is connected to the ISUP call, determining whether the calling mobile communication terminal supports the general codec ringback tone or the multimedia codec ringback tone using the multimedia ringback tone terminal flag to replace the ringback tone. It provides a system for providing a ringback tone replacement sound service using a service node method, characterized in that it comprises a service node (Service Node) for converting the sound source to the corresponding sound source and transmitting to the outgoing mobile communication terminal.

According to a third object of the present invention, an outgoing mobile communication terminal, an incoming mobile communication terminal, a web server, an outgoing mobile communication switching center, an incoming mobile communication switching center, a service node, a home location register (HLR) In a system including a 'HLR' and a customer care center, a method for providing a ringback tone replacement sound service using a service node method at a calling party, comprising: (a) the calling mobile communication terminal at the calling mobile terminal; Requesting a voice call; (b) determining, by the calling mobile telecommunication switching center, whether the called mobile communication terminal is subscribed to a ringback tone substitute tone service using the HLR; (c) when the calling mobile communication terminal determines that the called mobile communication terminal is subscribed to the ringback tone replacement tone service in step (b), the calling mobile communication terminal transmits a general codec ringback tone or a multimedia codec to the service node. Requesting an ISDN User Part (ISP) call including a multimedia ringback tone terminal flag for determining whether to support ringback tone; (d) determining whether the originating mobile communication terminal supports the multimedia codec ringback tone using the multimedia ringback tone terminal flag at the service node; And (e) transmitting a multimedia codec ringback tone sound source to the originating mobile communication terminal when the service node determines in step (d) that the originating mobile communication terminal supports the multimedia codec ringback tone. The present invention provides a method for providing a ringback tone substitute sound service using a service node method.

According to a fourth object of the present invention, an outgoing mobile communication terminal, an incoming mobile communication terminal, a web server, an outgoing mobile communication exchange station, an incoming mobile communication exchange station, a service node, a home location register (HLR) In a system including a 'HLR' and a customer care center, a method for providing a ringback tone replacement sound service using a service node method at a called party, comprising: (a) the calling mobile communication terminal at the calling mobile communication terminal; Requesting a voice call; (b) an ISUP including a multimedia ringback tone terminal flag for determining whether the originating mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone from the originating mobile communication switching center to the destination mobile communication switching center. Requesting an (ISDN User Part) call; (c) determining whether the called mobile communication terminal is subscribed to a ringback tone replacement tone service using the HLR at the called mobile communication switching center; (d) in step (c), if the terminating mobile communication terminal determines that the terminating mobile communication terminal is subscribed to the ringback tone replacement tone service, connecting an ISUP call including a multimedia ringback tone terminal flag to the service node; step; (e) determining whether the calling mobile communication terminal supports the multimedia codec ringback tone using the multimedia ringback tone terminal flag at the service node; And (f) transmitting the multimedia codec ringback tone source to the calling mobile terminal when the service node determines that the calling mobile terminal supports the multimedia codec ringback tone in step (e). The receiver provides a method for providing a ringback tone substitute sound service using a service node method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the following description of the present invention, a preferred embodiment of the present invention will be described assuming that a mobile communication system implementing a mobile communication network is a code division multiple access (CDMA) 2000 system. However, this assumption is for convenience of description, and the technical idea of the present invention is not limited to this assumption and may be applied to other synchronous mobile communication systems and other asynchronous systems.

That is, in providing a ringback tone substitute sound instead of a conventional ringback tone from the wireless network to the wireless terminal, if the ringback tone substitute sound is provided to the wireless terminal using a service node in the wireless network, it is within the scope of the technical idea of the present invention. Will be said.

1 is a block diagram illustrating a schematic configuration of a system for providing a ringback tone substitute sound service using a service node method according to the first and second embodiments of the present invention.

A system for providing a ringback tone substitute sound service using a service node method according to the first and second embodiments of the present invention includes an outgoing mobile communication terminal 110, an incoming mobile communication terminal 112, and a mobile communication network 120. , The Internet 180, a customer care center 182, and a web server 184 are configured.

The outgoing mobile terminal 110 and the terminating mobile communication terminal 112 use a mobile communication network 120 to perform voice calls with each mobile communication terminal or with a general landline telephone through a public switched telephone network (not shown). Communication terminal. Here, the mobile communication terminal is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, Hand-Held PC (GSM), Global System for Mobile (GSM) phone, Wideband CDMA (WCDMA) phone, CDMA-2000 phone, Mobile Broadband System (MBS) phone and the like. Here, MBS phone refers to a mobile phone to be used in the fourth generation system currently being discussed.

The outgoing mobile terminal 110 according to the first and second embodiments of the present invention requests a voice call to the called party's mobile terminal 112 using the mobile communication network 120 according to the caller's key manipulation. If the called party subscribes to the ringback tone replacement tone service, that is, if the called party subscribes to the ringback tone replacement tone service for the called mobile communication terminal 112, the mobile terminal receives and outputs the ringback tone substitute tone from the mobile communication network 120. Communication terminal.

The incoming mobile communication terminal 112 according to the first and second embodiments of the present invention is a mobile communication terminal that receives a call request from the outgoing mobile communication terminal 110 using the mobile communication network 120. Reply according to the paging request of 120).

The mobile communication network 120 according to the first and second embodiments of the present invention includes an outgoing radio base station 130, an incoming radio base station 132, an outgoing mobile communication exchange station 140, a destination mobile communication exchange station 142, Common Channel Signaling Network No. 7 (CCSN: Common Channel Signaling Network) 150, Home Location Register (HLR: HLR) 160, and Service Node 170, It is a communication network providing a voice call service and a ringback tone replacement sound service to the outgoing mobile communication terminal 110 and the incoming mobile communication terminal 112.

Here, the source radio base station 130 and the destination radio base station 132 are each a radio base station of a mobile communication network 120 including a base station transmission system (BTS) and a base station controller (BSC).

When the outgoing wireless base station 130 according to the first and second embodiments of the present invention receives an outgoing call from the outgoing mobile communication terminal 110, the outgoing call is transmitted to the outgoing mobile communication switching station 140 by the outgoing call. A communication path is connected between the communication terminal 110 and the originating mobile communication switching center 140.

The outgoing mobile communication switching center 140 and the incoming mobile communication switching center 142 perform basic and additional service processing, incoming and outgoing call processing of subscribers, location registration procedure and handoff procedure processing, interworking functions with other networks, and the like. As the mobile communication switching station of 120, each of the calling mobile terminal 110, the calling party, the called party, the information of the called party, and the location of each mobile communication terminal using the HLR 160, respectively. Identify information and status information.

When the outgoing mobile communication switching center 140 according to the first embodiment of the present invention receives an outgoing call requesting a voice call from the outgoing mobile communication terminal 110 and the call path is connected to the outgoing mobile communication terminal 110, the HLR After checking whether the incoming mobile communication terminal 112 is subscribed to the ringback tone replacement tone service using the 160, the calling mobile communication terminal 110 to the service node 170 is connected to the general codec ringback tone or the like. An ISDN User Part (ISP) call including a multimedia ringback tone terminal flag (Flag) for determining whether to support a multimedia codec ringback tone is requested.

When the outgoing mobile communication switching center 140 according to the second embodiment of the present invention receives an outgoing call requesting a voice call from the outgoing mobile communication terminal 110 and is connected to the outgoing mobile communication terminal 110, the incoming call is received. The mobile communication switching center 142 requests an ISUP call including a multimedia ringback tone terminal flag for determining whether the originating mobile communication terminal 110 supports a general codec ringback tone or a multimedia codec ringback tone.

The terminating mobile telecommunication switching center 142 according to the first embodiment of the present invention connects the service node 170 and the ISUP call, and paging the terminating mobile telecommunication terminal 112 with the originating mobile telecommunication terminal 110. A voice call is connected between the incoming mobile communication terminals 112.

When the incoming mobile telecommunication switching center 142 according to the second preferred embodiment of the present invention receives an ISUP call from the calling mobile telecommunication switching station 140, the incoming mobile telecommunication terminal 112 replaces the ringback tone using the HLR 160. After confirming that the service is subscribed to, the service node 170 connects the ISUP call including the multimedia ringback tone terminal flag, paging the incoming mobile communication terminal 112, and the calling mobile communication terminal 110. And a voice call between the incoming mobile communication terminal 112.

The common line signal network No. 7 (150) refers to a network composed of signal points and signal links and providing a common line signaling system standardized by the ITU-T No. 7 scheme. Here, the common line signaling scheme refers to a signaling scheme that separates signal information and network management information into voice and data and transmits them on a separate channel commonly used for signal transmission.

The HLR 160 is a database that stores service profiles related to subscriber information of mobile subscribers. The HLR 160 performs a function such as registration recognition, registration deletion, and location checking of each mobile communication terminal, and uses each mobile communication terminal. Information about the type of service, such as a subscriber's telephone number, a mobile identification number (MIN), an electronic serial number (ESN), and ringback tone replacement tone service, and a service node 170 Stores information for routing.

When the HLR 160 according to the first and second embodiments of the present invention is informed by the customer care center 182 that the terminating mobile communication terminal 112 is subscribed to the ringback tone replacement tone service, the receiving mobile communication terminal ( 112 transmits the service profile of 112 to the originating mobile communication switching center 140 and the terminating mobile communication switching center 142.

In addition, the HLR 160 registers the outgoing mobile communication terminal 110 with the outgoing mobile communication switching station 140 when the outgoing mobile communication terminal 110 is registered from the customer care center 182, and the outgoing mobile communication switching center 140 Receive a registration result of the outgoing mobile communication terminal (110).

When the service node 170 according to the first embodiment of the present invention receives an ISUP call from the originating mobile communication switching center 140, the originating mobile communication terminal 110 uses the multimedia ringback tone terminal flag to generate a general codec ringback tone or the like. Determine whether the multimedia codec ringback tone is supported, convert the ringback tone substitute sound source into the corresponding ringback tone sound source, transmit it to the outgoing mobile communication terminal 110, and connect the ISUP call to the terminating mobile communication exchange station 142 to make an outgoing call. It serves to switch the voice call service and ring back tone replacement sound service between the mobile communication switching center 140 and the incoming mobile communication switching center 142. Here, the service node 170 determines whether the originating mobile communication terminal 110 supports the general codec ringback tone or the multimedia codec ringback tone using the multimedia ringback tone terminal flag, and replaces the ringback tone substitute sound source with the corresponding ringback tone. Although it is described as being converted to a sound source and transmitted to the outgoing mobile communication terminal 110, the service node 170 determines whether the called party has purchased the multimedia codec ringback tone sound source and determined that the called party purchased the multimedia codec ringback tone sound source. When the multimedia codec ringback tone sound is transmitted to the calling mobile terminal 110, and when the called party determines that the multimedia codec ringback tone sound has not been purchased, the general codec ringback tone sound is transmitted to the calling mobile communication terminal 110. It may be.

When the service node 170 according to the second embodiment of the present invention is connected to the incoming mobile communication switching center 142 and the ISUP call, the originating mobile communication terminal 110 uses the multimedia ringback tone terminal flag to generate a general codec ringback tone or multimedia. Determining whether or not the codec ringback tone is supported, converting the ringback tone substitute sound source to the corresponding ringback tone sound source, transmitting the same to the outgoing mobile communication terminal 110, and connecting the ISUP call to the terminating mobile communication exchange station 142 to make the outgoing movement It serves to switch the voice call service and ringback tone replacement sound service between the communication switching station 140 and the incoming mobile communication switching station 142.

The Internet 180 is a service that exists in the TCP / IP protocol and its upper layers, such as Hypertext Transfer Protocol (HTTP), Telnet, File Transfer Protocol (FTP), Domain Name System (DNS), and Simple Mail Transfer Protocol (SMTP). , A global open computer network architecture that provides the Simple Network Management Protocol (SNTP), Network File Service (NFS) and Network Information Service (NIS).

The customer care center 182 according to the first and second embodiments of the present invention moves the incoming call to the service node 170 and the HLR 160 when the incoming mobile communication terminal 112 subscribes to the ringback tone replacement tone service. Notifies that the communication terminal 112 is subscribed to the ringback tone replacement tone service.

In addition, the customer care center 182 registers the outgoing mobile communication terminal 110 with the HLR 160 when the outgoing mobile communication terminal 110 is subscribed.

The web server 184 adds a ringback tone replacement sound source to the service node 170 via the Internet 180, and informs the service node 170 about the sound source specification, that is, information about a caller, a caller group, and a call time. And a user interface for setting and changing a sound source code corresponding to information on sound source specification to a user terminal such as a computer or a mobile communication terminal. To this end, the web server 184 provides a web page or a swap page to a user terminal or a mobile communication terminal. Here, the ringback tone replacement sound source is a voice codec ringback tone sound source or a multimedia codec ringback tone sound source.

2 is a flowchart illustrating a method for providing a ringback tone replacement tone service using a service node method in a caller according to a first embodiment of the present invention.

When the caller enters the telephone number of the called mobile communication terminal 110 to select a call by operating the calling mobile communication terminal 11 to carry out a voice call with the called party, the calling mobile communication terminal 110 determines the calling wireless base station ( 130, and transmits the outgoing call to the outgoing mobile communication switching center 140 (S202).

The outgoing mobile communication switching center 140 receiving the outgoing call transmits the telephone number of the incoming mobile communication terminal 112 to the HLR 160 and requests location information of the incoming mobile communication terminal 112 (S204).

The HLR 160 inquires the location of the terminating mobile communication terminal 112, recognizes the terminating mobile communication switching center 142, and requests routing information from the terminating mobile communication switching center 142 (S206).

The destination mobile communication switching center 142 transmits its routing information to the HLR 16 and responds (S208), and the HLR 160 transmits the received routing information to the calling mobile communication switching center 140 to receive the mobile terminal. In response to the location information request of 112 (S210).

Subsequently, the outgoing mobile communication switching center 140 checks whether the incoming mobile communication terminal 112 is subscribed to the ringback tone replacement tone service using the HLR 160 (S212). In step 110, the mobile terminal 110 provides a typical ringback tone (S213), and if it is subscribed, determines whether the calling mobile communication terminal 110 supports the general codec ringback tone or the multimedia codec ringback tone. A request for an ISDN User Part (ISP) call including a multimedia ringback tone terminal flag (Slag) is requested (S214).

The service node 170 transmits a call response message in response to the call request to the calling mobile communication switching station 140 (S216), and the calling mobile communication terminal 110 transmits the multimedia codec ringback tone using the multimedia ringback tone terminal flag. If it is determined whether or not to support (S218), when the calling mobile communication terminal 110 determines that the multimedia codec ringback tone does not support, it converts the ringback tone replacement sound source into a general codec ringback tone sound source to the calling mobile communication switching center 140 It transmits to the outgoing mobile communication terminal 110 via (S219). Here, the service node 170 determines whether the originating mobile communication terminal 110 supports the general codec ringback tone or the multimedia codec ringback tone using the multimedia ringback tone terminal flag, and replaces the ringback tone substitute sound source with the corresponding ringback tone. Although it is described as being converted to a sound source and transmitted to the outgoing mobile communication terminal 110, the service node 170 determines whether the called party has purchased the multimedia codec ringback tone sound source and determined that the called party purchased the multimedia codec ringback tone sound source. When the multimedia codec ringback tone sound is transmitted to the calling mobile terminal 110, and when the called party determines that the multimedia codec ringback tone sound has not been purchased, the general codec ringback tone sound is transmitted to the calling mobile communication terminal 110. It may be.

When the service node 170 determines in step S218 that the calling mobile communication terminal 110 supports the multimedia codec ringback tone, the service node 170 converts the ringback tone replacement sound source into the multimedia codec ringback tone sound source through the calling mobile communication switching center 140. Sent to the outgoing mobile communication terminal 110 (S220).

Subsequently, the service node 170 connects the incoming mobile communication switching center 142 and the ISUP call according to the ISUP call request from the outgoing mobile communication switching center 140 (S222).

The terminating mobile communication switching center 142 paging the terminating mobile communication terminal 112 (S224), and receives a response to paging from the terminating mobile communication terminal 112 (S226).

Upon receiving the response to paging, the incoming mobile communication switching center 142 requests the call release from the service node 170 (S228), and receives a response to the call release from the service node 170 (S230).

Subsequently, a voice call channel is formed between the calling mobile communication terminal 110, the calling mobile communication switching center 140, the incoming mobile communication switching center 142, and the incoming mobile communication terminal 112 to make a call with the calling mobile communication terminal 110. A voice call is performed between the mobile communication terminals 112 (S232).

3 is a flowchart illustrating a method for providing a ringback tone substitute sound service using a service node method according to a second embodiment of the present invention.

When the caller enters the telephone number of the called mobile communication terminal 110 to select a call by operating the calling mobile communication terminal 11 to carry out a voice call with the called party, the calling mobile communication terminal 110 determines the calling wireless base station ( 130, and transmits the outgoing call to the outgoing mobile communication switching center 140 (S302).

The outgoing mobile communication switching center 140 receiving the outgoing call transmits the telephone number of the incoming mobile communication terminal 112 to the HLR 160 and requests location information of the incoming mobile communication terminal 112 (S304).

The HLR 160 inquires the location of the terminating mobile communication terminal 112, recognizes the terminating mobile communication switching center 142, and requests routing information from the terminating mobile communication switching center 142 (S306).

The terminating mobile telecommunication switching center 142 transmits its routing information to the HLR 16 and responds (S308), and the HLR 160 transmits the received routing information to the originating mobile telecommunication switching center 140 to receive the telecommunication terminal. In response to the location information request of 112 (S310).

The outgoing mobile switching center 140 sends a multimedia ringback tone terminal flag to determine whether the outgoing mobile terminal 110 supports a general codec ringback tone or a multimedia codec ringback tone to the destination mobile communication switching center 142. Request an ISUP (ISDN User Part) call including S312.

The terminating mobile communication switching center 142 checks whether or not the terminating mobile communication terminal 112 is subscribed to the ringback tone replacement tone service using the HLR 160 (S314). In step S315, a typical ringback tone is provided via the outgoing mobile communication switching center 140 (S315), and if the subscriber is connected, the service node 170 connects the ISUP call including the multimedia ringback tone terminal flag (S316).

The service node 170 transmits the call response message for the call connection to the terminating mobile communication switching center 142 (S318), and the terminating mobile communication switching center 142 transmits the call response message to the calling mobile communication switching center 140. (S320).

The service node 170 determines whether the calling mobile communication terminal 110 supports the multimedia codec ringback tone using the multimedia ringback tone terminal flag (S322), and the calling mobile communication terminal 110 applies the multimedia codec ringback tone. If it is determined that it is not supported, the ringback tone substitute sound source is converted into a general codec ringback tone sound source and transmitted to the outgoing mobile communication terminal 110 via the incoming mobile communication switching center 142 and the outgoing mobile switching center 140 (S323). . Here, the service node 170 determines whether the originating mobile communication terminal 110 supports the general codec ringback tone or the multimedia codec ringback tone using the multimedia ringback tone terminal flag, and replaces the ringback tone substitute sound source with the corresponding ringback tone. Although it is described as being converted to a sound source and transmitted to the outgoing mobile communication terminal 110, the service node 170 determines whether the called party has purchased the multimedia codec ringback tone sound source and determined that the called party purchased the multimedia codec ringback tone sound source. When the multimedia codec ringback tone sound is transmitted to the calling mobile terminal 110, and when the called party determines that the multimedia codec ringback tone sound has not been purchased, the general codec ringback tone sound is transmitted to the calling mobile communication terminal 110. It may be.

If the service node 170 determines in step S322 that the calling mobile communication terminal 110 supports the multimedia codec ringback tone, the service node 170 converts the ringback tone replacement sound source into the multimedia codec ringback tone sound source, thereby terminating the mobile communication switching center 142 and the calling movement. The transmission is transmitted to the outgoing mobile terminal 110 via the communication switching station 140 (S324).

Subsequently, the service node 170 connects the incoming mobile communication switching center 142 and the ISUP call (S326).

The terminating mobile communication switching center 142 paging the terminating mobile communication terminal 112 (S328), and receives a response to paging from the terminating mobile communication terminal 112 (S330).

Upon receiving the response to paging, the incoming mobile communication switching center 142 requests the call release from the service node 170 (S332), and receives a response to the call release from the service node 170 (S334).

Subsequently, a voice call channel is formed between the calling mobile communication terminal 110, the calling mobile communication switching center 140, the incoming mobile communication switching center 142, and the incoming mobile communication terminal 112 to make a call with the calling mobile communication terminal 110. A voice call is performed between the mobile communication terminals 112 (S336).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, by providing a ringback tone replacement sound service using a service node method, a user can be provided with a high quality ringback tone replacement sound service, and a mobile communication service provider maintains an existing system. It provides the service by adding only the node, which reduces the investment cost and makes the efficient network configuration.

Claims (16)

A common line signaling network which consists of an outgoing mobile communication terminal requesting a voice call and receiving and outputting ring back tone replacement sound, an incoming mobile communication terminal receiving the request for the voice call, a signal point and a signal link to provide a common line signaling method. A system for providing a ringback tone substitute tone service using a service node method at a calling party including a web server providing No. 7 and a ringback tone substitute tone sound source, When a call path is connected to the calling mobile terminal, after checking whether the called mobile terminal is subscribed to a ringback tone replacement tone service, whether the calling mobile terminal supports a general codec ringback tone or a multimedia codec ringback tone. An outgoing mobile telecommunication switching center requesting an ISDN User Part (ISP) call including a multimedia ringback tone terminal flag for determining When the ISUP call is requested, it is determined whether the calling mobile communication terminal supports the general codec ringback tone or the multimedia codec ringback tone by using the multimedia ringback tone terminal flag to convert the ringback tone substitute sound source into a corresponding sound source. A service node converting and transmitting to the calling mobile communication terminal and connecting the ISUP call; And Incoming mobile communication switching station connecting the service node and the ISUP call and paging the incoming mobile communication terminal System for providing a ring back tone replacement sound service using a service node method at the originating side comprising a. The method of claim 1, The system, A home location register (HLR) for transmitting a service profile of the called mobile communication terminal to the calling mobile communication switching station and the called mobile communication switching station when the called mobile communication terminal is notified that the ringback tone replacement tone service is subscribed to. Referred to as 'HLR'; And A customer care center for notifying the service node and the HLR that the incoming mobile communication terminal has subscribed to the ringback tone replacement tone service when the incoming mobile communication terminal subscribes to the ringback tone replacement tone service; System for providing a ringback tone substitute sound service using a service node method at the originating side characterized in that it further comprises. The method of claim 2, And the customer care center registers the outgoing mobile communication terminal with the HLR when the outgoing mobile communication terminal is subscribed. The method of claim 2 or 3, The HLR registers the outgoing mobile terminal with the outgoing mobile switching center upon registration of the outgoing mobile communications terminal from the customer care center and receives a registration result of the outgoing mobile communications terminal from the outgoing mobile communications exchange. A system for providing a ringback tone substitute sound service using a service node method at a caller. A common line signaling network which consists of an outgoing mobile communication terminal requesting a voice call and receiving and outputting ring back tone replacement sound, an incoming mobile communication terminal receiving the request for the voice call, a signal point and a signal link to provide a common line signaling method. Claims [1] A system for providing a ringback tone substitute sound service using a service node method at a called side including a web server providing No. 7 and a ringback tone substitute sound source, ISUP (ISDN User) including a multimedia ringback tone terminal flag (flag) for determining whether the originating mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone when a call path is connected to the outgoing mobile communication terminal. Part) originating mobile switching center requesting a call; When the ISUP call is requested, after checking whether the terminating mobile communication terminal is subscribed to a ringback tone replacement tone service, connecting the ISUP call including the multimedia ringback tone terminal flag and paging the terminating mobile communication terminal ( An incoming mobile telecommunication switching station; And When the incoming mobile telecommunication switching center and the ISUP call are connected, the ring back tone replacement sound is determined by determining whether the calling mobile communication terminal supports the general codec ring back tone or the multimedia codec ring back tone using the multimedia ring back tone terminal flag. A service node converts a sound source into a corresponding sound source and transmits it to the calling mobile communication terminal. The system for providing a ringback tone substitute sound service using a service node method, characterized in that comprising a. The method of claim 5, The system, A home location register (HLR) for transmitting a service profile of the called mobile communication terminal to the calling mobile communication switching station and the called mobile communication switching station when the called mobile communication terminal is notified that the ringback tone replacement tone service is subscribed to. Referred to as 'HLR'; And A customer care center for notifying the service node and the HLR that the incoming mobile communication terminal has subscribed to the ringback tone replacement tone service when the incoming mobile communication terminal subscribes to the ringback tone replacement tone service; The system for providing a ringback tone substitute sound service using a service node method, characterized in that further comprising the service node. The method of claim 6, And the customer care center registers the outgoing mobile terminal with the HLR when the outgoing mobile terminal is subscribed. The method according to claim 6 or 7, The HLR registers the outgoing mobile terminal with the outgoing mobile switching center upon registration of the outgoing mobile communications terminal from the customer care center and receives a registration result of the outgoing mobile communications terminal from the outgoing mobile communications exchange. A system for providing a ringback tone substitute sound service using a service node method at a called party. Outgoing Mobile Terminal, Incoming Mobile Terminal, Web Server, Outgoing Mobile Switching Station, Incoming Mobile Switching Station, Service Node, Home Location Register (HLR) and Customer Management In a system including a center, a method for providing a ringback tone replacement sound service using a service node method at an originating party, (a) requesting a voice call from the calling mobile communication terminal to the calling mobile communication switching center; (b) determining, by the calling mobile telecommunication switching center, whether the called mobile communication terminal is subscribed to a ringback tone substitute tone service using the HLR; (c) when the calling mobile communication terminal determines that the called mobile communication terminal is subscribed to the ringback tone replacement tone service in step (b), the calling mobile communication terminal transmits a general codec ringback tone or a multimedia codec to the service node. Requesting an ISDN User Part (ISP) call including a multimedia ringback tone terminal flag for determining whether to support ringback tone; (d) determining whether the originating mobile communication terminal supports the multimedia codec ringback tone using the multimedia ringback tone terminal flag at the service node; And (e) transmitting the multimedia codec ringback tone sound source to the originating mobile communication terminal when the service node determines that the originating mobile communication terminal supports the multimedia codec ringback tone in step (d). Method for providing a ringback tone substitute sound service using a service node method at the originating side comprising a. The method of claim 9, wherein after step (e): (f) the service node connecting an ISUP call with the destination mobile communication switching center; (g) paging the called mobile communication terminal at the called mobile communication switching center; (h) receiving a response to the paging from the destination mobile communication terminal at the destination mobile communication switching center; (i) requesting a call release from the terminating mobile communication switching center to the service node; (j) receiving a response to the call release from the service node at the destination mobile telecommunication switching center; And (k) performing the voice call between the calling mobile communication terminal and the called mobile communication terminal; Method for providing a ringback tone substitute sound service using a service node method at the originating side characterized in that it further comprises. The method of claim 9, wherein between step (b) and step (c), (b1) transmitting a ringback tone to the calling mobile terminal when the calling mobile terminal determines that the called mobile terminal is not subscribed to the ringback tone replacement service in step (b); Method for providing a ringback tone substitute sound service using a service node method at the originating side characterized in that it further comprises. The method of claim 9, wherein between step (d) and step (e), (d1) when the service node determines that the calling mobile terminal does not support the multimedia codec ringback tone in step (d), transmitting a general codec ringback tone sound source to the calling mobile terminal. Method for providing a ringback tone substitute sound service using a service node method at the originating side characterized in that it further comprises. Outgoing Mobile Terminal, Incoming Mobile Terminal, Web Server, Outgoing Mobile Switching Station, Incoming Mobile Switching Station, Service Node, Home Location Register (HLR) and Customer Management In the system comprising a center, the method for providing a ringback tone substitute sound service using the service node method at the called party, (a) requesting a voice call from the calling mobile communication terminal to the calling mobile communication switching center; (b) an ISUP including a multimedia ringback tone terminal flag for determining whether the originating mobile communication terminal supports a general codec ringback tone or a multimedia codec ringback tone from the originating mobile communication switching center to the destination mobile communication switching center. Requesting an (ISDN User Part) call; (c) determining whether the called mobile communication terminal is subscribed to a ringback tone replacement tone service using the HLR at the called mobile communication switching center; (d) in step (c), if the terminating mobile communication terminal determines that the terminating mobile communication terminal is subscribed to the ringback tone replacement tone service, connecting an ISUP call including a multimedia ringback tone terminal flag to the service node; step; (e) determining whether the calling mobile communication terminal supports the multimedia codec ringback tone using the multimedia ringback tone terminal flag at the service node; And (f) transmitting the multimedia codec ringback tone sound source to the calling mobile terminal when the service node determines that the calling mobile terminal supports the multimedia codec ringback tone in step (e). Method for providing a ringback tone substitute sound service using a service node method in the called party characterized in that it comprises a. The method of claim 13, wherein after step (f): (g) the service node connecting an ISUP call with the destination mobile telecommunication switching center; (h) paging the called mobile communication terminal at the called mobile communication switching center; (i) receiving a response to the paging from the terminating mobile terminal at the terminating mobile communication switching center; (j) requesting a call release from the destination mobile communication switching center to the service node; (k) receiving a response to the call release from the service node at the destination mobile telecommunication switching center; And (l) performing the voice call between the calling mobile terminal and the called mobile terminal; Method for providing a ringback tone substitute sound service using a service node method at the called party characterized in that it further comprises. The method of claim 13, wherein between step (c) and step (d): (c1) when the calling mobile communication switching station determines that the called mobile communication terminal is not subscribed to the ringback tone replacement tone service in step (c), transmitting a ringback tone to the calling mobile communication terminal. Method for providing a ringback tone substitute sound service using a service node method at the called party characterized in that it further comprises. The method of claim 13, wherein between step (e) and step (f): (e1) when the service node determines that the calling mobile communication terminal does not support the multimedia codec ringback tone in step (e), transmitting a general codec ringback tone sound source to the calling mobile communication terminal. Method for providing a ringback tone substitute sound service using a service node method at the called party characterized in that it further comprises.

Images