KR100814797B1 - Method, System and Apparatus for Providing Alternative Ring Back Tone by Using Multiple Codecs - Google Patents

Abstract

The present invention relates to a method, system, and apparatus for providing a ringback tone substitute sound service using multiple codecs.

The present invention includes an outgoing mobile communication terminal for requesting a voice call, an incoming mobile communication terminal for receiving the voice call and a sound source providing unit for providing a ringback tone replacement sound source, and providing a ringback tone replacement sound service to the outgoing mobile communication terminal. In the providing system, receiving the voice call from the outgoing mobile terminal, establishes a call path with the outgoing mobile terminal, checks whether the incoming mobile communication terminal is subscribed to a ringback tone replacement tone service, A mobile communication network is used to determine whether a general codec ringback tone call or a multimedia codec ringback tone call is performed using a signaling message, and converts the ringback tone substitute sound source into a corresponding ringback tone sound source and transmits it to the calling mobile communication terminal. Ringback tone substitute sound using multiple codecs, characterized in that including It provides for a system that provides bus.

According to the present invention, by providing a ringback tone replacement sound service using a multiple codecs for converting the ringback tone replacement sound source into a ringback tone sound source corresponding to a ringback tone call, the user is provided with a high quality ringback tone replacement sound service. In addition, the mobile carrier can provide ring back tone replacement sound service only by upgrading the software in the existing system, thereby reducing the investment cost and providing an efficient network configuration.

Multiple, Ringback Tone, Codec, Convert

Description

Method, System and Apparatus for Providing Alternative Ring Back Tone by Using Multiple Codecs}

1 is a block diagram showing a schematic configuration of a system for providing a ringback tone substitute sound service using multiple codecs according to a preferred embodiment of the present invention;

2 is a block diagram showing a schematic configuration inside a sound source providing apparatus according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a method for providing a ringback tone substitute sound service using multiple codecs according to a preferred 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: sound source providing device

190: sound source providing unit 210: signaling processing unit

220: sound source transmission processing unit 230: main control unit

240: sound source control server interworking unit 250: sound source storage unit

260: sound source reading unit

The present invention relates to a method, system, and apparatus for providing a ringback tone substitute sound service using multiple codecs. More specifically, in a system providing a ringback tone replacement sound service using multiple codecs, a voice call is received from an outgoing mobile terminal to establish a call path with the outgoing mobile terminal, and a ringback tone replacement sound service is provided to the incoming mobile terminal. Check whether the subscriber is subscribed to the mobile terminal, and determine whether the caller is a general codec ringback tone call or a multimedia codec ringback tone call using a signaling message, and converts the ringback tone substitute sound source into a corresponding ringback tone sound source. The present invention relates to a method, a system and an apparatus for transmitting.

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, which listens to the caller's mobile terminal that calls various kinds of music, voice, etc. designated by the called party or caller. have. 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, such as an adaptive multi rate codec (AMR), hereinafter referred to as 'AMR', is used. 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, the voice codecs of variable bit rates 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 (Code Book). Encoding. 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. Therefore, the above-described variable code rate voice codec is not suitable for encoding an audio source such as music.

In order to solve the problem of the voice codec of the variable bit rate, 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 problems, the present invention, in a system for providing a ringback tone replacement sound service using multiple codecs, receives a voice call from a calling mobile communication terminal, establishes a call route with a calling mobile communication terminal, and receives a mobile communication terminal. Check whether the subscription is to the ringback tone replacement service, and determine whether it is a general codec ringback tone call or a multimedia codec ringback tone call by using a signaling message, and substitute the ringback tone sound source as the corresponding ringback tone sound source. An object of the present invention is to provide a method, system, and apparatus for transmitting a call to a calling mobile terminal.

Accordingly, according to a first object of the present invention, a source mobile communication terminal for requesting a voice call, a destination mobile communication terminal for receiving the voice call, and a sound source providing unit for providing a ringback tone replacement sound source, the source mobile communication A system for providing a ringback tone replacement sound service to a terminal, the system comprising: receiving a voice call from the originating mobile communication terminal, establishing a call path with the outgoing mobile communication terminal, and a ringback tone replacement sound service for the called mobile communication terminal; Determine whether a subscription has been made, and determine whether it is a general codec ringback tone call or a multimedia codec ringback tone call by using a signaling message, and converts the ringback tone substitute sound source into a corresponding ringback tone sound source to move the outgoing call. Multiple nose, characterized in that it comprises a mobile communication network for transmitting to the communication terminal To provide a ringback tone system that provides an alternative sound service using.

According to a second aspect of the present invention, in an apparatus for providing a ringback tone replacement sound service using multiple codecs, signaling for receiving a signaling message for determining whether a general codec ringback tone call or a multimedia codec ringback tone call is used. Processing unit; A sound source control server interworking unit connected to a sound source control server and requesting sound source authentication to the sound source control server; A sound source storage for storing a ringback tone substitute sound source; A sound source reading unit which loads the ringback tone substitute sound source and delivers the ringback tone substitute sound source; A sound source transmitting processor configured to encode a general codec ringback tone sound source or to decode a multimedia codec ringback tone sound source, and to convert the ringback tone substitute sound source and transmit the converted sound source to a mobile communication terminal; And a main control unit for determining whether a general codec ringback tone call or a multimedia codec ringback tone call is generated according to the signaling message, and converting the ringback tone substitute sound source to be transmitted to the mobile communication terminal using the sound source transmission processor. Provided is an apparatus for providing a ringback tone substitute sound service using multiple codecs, including.

According to a third object of the present invention, an outgoing mobile communication terminal for requesting a voice call, an incoming mobile communication terminal for receiving the voice call, a sound source providing unit for providing a ringback tone replacement sound source, and the call call from the outgoing wireless base station In a system including a receiving mobile communication exchange station for setting an ISUP call and an outgoing mobile communication exchange station for setting up an ISUP call when the call path is connected to the calling mobile communication terminal, CLAIMS 1. A method for providing a ringback tone replacement tone service using a codec, the method comprising: (a) receiving the signaling message from the terminating mobile telecommunication switching center and establishing a ringback tone call; (b) requesting sound source authentication to the sound source providing unit; (c) receiving the ringback tone substitute sound source from the sound source provider if the sound source authentication is successful; (d) determining whether the multimedia codec is a ringback tone call according to the signaling message; And (e) converting the ringback tone substitute sound source into a multimedia codec ringback tone source when transmitting the multimedia codec ringback tone call in step (d) and transmitting the multimedia codec ringback tone tone to the calling mobile terminal. Provided is a method for providing a ringback tone replacement sound service using multiple codecs.

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 replacement sound instead of a normal ringback tone from a wireless network to a wireless terminal, if the ringback tone replacement sound source is changed to a corresponding ringback tone source according to a ringback tone call in the wireless network and provided to the wireless terminal. It will be within the scope of the technical idea of the present invention.

1 is a block diagram showing a schematic configuration of a system for providing a ringback tone substitute sound service using multiple codecs according to a preferred embodiment of the present invention.

In a system for providing a ringback tone substitute sound service using multiple codecs according to a preferred embodiment of the present invention, an outgoing mobile communication terminal 110, an incoming mobile communication terminal 112, a mobile communication network 120, and a sound source providing unit 190 are provided. It is configured to include.

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 calling mobile communication terminal 110 according to the preferred embodiment of the present invention requests a voice call to the called mobile communication terminal 112 of the called party using the mobile communication network 120 according to the caller's key manipulation, and the called party rings the ringback tone. In the case of subscribing to the substitute tone service, that is, in the case of subscribing to the ringback tone substitute tone service for the incoming mobile communication terminal 112, the mobile communication terminal receives and outputs the ringback tone substitute tone from the mobile communication network 120.

Incoming mobile communication terminal 112 according to a preferred embodiment 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, to the paging request of the mobile communication network 120 Respond accordingly.

The mobile communication network 120 according to the preferred embodiment 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, and a common line signaling network (CCSN). : Common channel signaling network No. 7 (150), home location register (HLR: Home Location Register, hereinafter referred to as 'HLR', 160), including the gateway 170 and the sound source providing device 180, outgoing movement It is a communication network providing a voice call service and a ringback tone replacement sound service to the communication terminal 110 and the destination 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 originating radio support station 130 according to the preferred embodiment of the present invention receives a call request from the originating mobile communication terminal 110, it connects a call path between the originating mobile 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 preferred embodiment of the present invention receives a call call requesting a voice call from the outgoing mobile communication terminal 110 and the outgoing mobile communication terminal 110 is connected to a call path, the incoming call is transferred. Perform ISUP call setup with the communication switching center (142).

When the incoming mobile communication switching center 142 according to the preferred embodiment of the present invention is informed by the calling mobile communication switching station 140 that there is a voice call request for the incoming mobile communication terminal 112, Perform ISUP call setup, paging the terminating mobile communication terminal 112, check whether the terminating mobile communication terminal 112 is subscribed to the ringback tone replacement sound service using the HLR 160, and then provide a sound source Sends a signaling message to the device 180 and performs ringback tone call setup, and transmits the general codec ringback tone source or the multimedia codec ringback tone source received from the sound source providing device 180 to the calling mobile communication switching center 140. Send. Here, the signaling message is a message for determining whether a general codec ringback tone call or a multimedia codec ringback tone call.

In addition, when there is a response from the terminating mobile communication terminal 112, the terminating mobile communication switching station 142 according to an embodiment of the present invention notifies the calling mobile communication switching station 140, from the sound source providing device 180 The voice codec ringback tone source or the multimedia codec ringback tone source transmitted to the source mobile communication switching center 140 is relayed and the voice call between the source mobile communication terminal 110 and the destination mobile communication terminal 112 is relayed.

The common line signal network No. 7 150 refers to a network composed of signal points and signal links to provide 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. Device for providing information and sound source such as a mobile subscriber's telephone number, a mobile identification number (MIN), an electronic serial number (ESN), a ringback tone replacement tone service, etc. Stores information for routing.

The gateway 170 is a device that interconnects a plurality of different types or same types of communication networks to exchange information with each other. The gateway 170 converts protocols by interconnecting a plurality of communication networks or devices that are not exchanged due to different protocols. Relay information to send and receive information between

The sound source providing device 180 is an IP for an intelligent network that stores a ringback tone replacement sound source. When the ringback tone replacement sound source is requested, the sound source providing device 180 requests a sound source authentication to the sound source control server 194, and the sound source authentication server succeeds. Receiving a ringback tone replacement sound source from 194, and determining whether it is a general codec ringback tone call or a multimedia codec ringback tone call using a signaling message received from the terminating mobile communication switching center 142, A codec ringback tone sound source or a multimedia codec ringback tone sound source is converted into a corresponding ringback tone sound source and transmitted to the destination mobile communication switching center 142. In addition, the sound source providing apparatus 180 stores and manages a ringback tone replacement sound source when the ringback tone replacement sound source is transmitted from the web server 198. Sound source providing apparatus 180 according to a preferred embodiment of the present invention will be described in detail with reference to FIG.

The sound source providing unit 190 generates and receives a ringback tone replacement sound source including the Internet 192, a sound source control server 194, a subscriber DB 196, and a web server 198 to the sound source providing apparatus 180. to provide.

The Internet 192 is a service that exists in the TCP / IP protocol and its upper layers: 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 sound source control server 194 is a server that controls the provision of the ringback tone replacement sound service, and controls the sound source providing apparatus 180 and the subscriber database (DB) so that the originating mobile communication terminal 110 and the incoming mobile communication terminal are controlled. The sound source authentication is performed using information on the caller and the called party of 112 and information on the call request time.

The subscriber DB 196 is a database that stores and manages information of subscribers subscribed to the ringback tone replacement sound service, and provides subscriber information necessary for performing sound source authentication in the sound source control server 194.

The web server 198 is connected to the sound source providing apparatus 180 and the sound source control server 194 through the Internet 192, adds a ringback tone replacement sound source to the sound source providing apparatus 180, and the sound source control server 194. ) Provides a user interface to a user terminal or mobile communication terminal such as a computer for setting and changing a sound source code corresponding to information on a sound source specification, that is, information on a caller, a group of callers, a call time, etc. do. To this end, the web server 198 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 block diagram showing a schematic configuration of a sound source providing apparatus according to a preferred embodiment of the present invention.

The sound source providing apparatus 180 according to an exemplary embodiment of the present invention is a device for providing a ringback tone replacement sound service using multiple codecs, and includes a signaling processor 210, a sound source transmitter 220, a main controller 230, and a sound source. Control server interlocking unit 240, the sound source storage unit 250 and the sound source reading unit 260 and the like.

The signaling processing unit 210 according to the preferred embodiment of the present invention receives a signaling message for determining whether it is a general codec ringback tone call or a multimedia codec ringback tone call from the terminating mobile communication switching center 142.

The sound source transmission processor 220 according to a preferred embodiment of the present invention performs a function of encoding a general codec ringback tone sound source into A-Law PCM or decoding a multimedia codec ringback tone sound source into A-Law PCM, and replaces ringback tone sound. It converts the sound source and transmits it to the calling mobile communication terminal 110.

The main control unit 230 according to the preferred embodiment of the present invention determines whether it is a general codec ringback tone call or a multimedia codec ringback tone call according to the signaling message received using the signaling processor 210 and the sound source storage unit 250. The ringback tone replacement sound source stored in the control unit is converted to the corresponding ringback tone sound source using the sound source transmission processor 220 and then transmitted to the outgoing mobile communication terminal 110.

The sound source control server interworking unit 240 according to the preferred embodiment of the present invention is connected to the sound source control server 194 and requests sound source authentication to the sound source control server 194.

The sound source storage unit 250 according to the preferred embodiment of the present invention stores the ringback tone replacement sound source received from the web server 198. Here, the ringback tone replacement sound source is a voice codec ringback tone sound source or a multimedia codec ringback tone sound source.

The sound source reading unit 260 according to the preferred embodiment of the present invention loads the ringback tone replacement sound source stored in the sound source storage unit 250 and transmits the ringback tone replacement sound source to the sound source transmission processor 220.

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

In the description of FIG. 3, it should be clearly understood that the mobile communication system constituting the mobile communication network 120 is assumed to be a CDMA 2000 system for convenience of explanation, as described above. Therefore, in other mobile communication systems, terms and functions of the following description will be somewhat different.

The calling mobile communication terminal 110 requests a call by transmitting information on the called mobile communication terminal 110, that is, a telephone number, etc., to the calling wireless base station 130 according to the caller's key manipulation (S302). The outgoing wireless base station 130 that has received the call request requests the setting of the call path to the outgoing mobile communication switching center 140 (S304), and the outgoing mobile communication switching center 140 transmits the calling path to the outgoing wireless base station 130. Request to allocate to the mobile communication terminal 110 (S306).

The outgoing wireless base station 130 connects with the outgoing mobile communication terminal 110 in a call (S308), and the outgoing mobile communication terminal 110 notifies the outgoing wireless base station 130 that the call path is connected and confirms it (S310). The originating radio base station 130 notifies the originating mobile communication switching center 140 that the allocation of the call is completed (S312).

When the outgoing mobile communication switching center 140 confirms that the calling mobile terminal 110 and the call path are connected through the outgoing wireless base station 130, it uses the HLR 160 in the area where the incoming mobile communication terminal 110 is located. Recognizing the incoming mobile communication switching station 142, which is a mobile communication switching station, sets an ISUP call with the incoming mobile communication switching station 142 (S314).

The terminating mobile telecommunication switching station 142 which has set up the ISUP call with the outgoing mobile telecommunication switching station 140 calls, i.e., pages the terminating mobile communication terminal 112 using the terminating wireless base station 122 (S316), and the HLR 160. Check whether or not the incoming mobile communication terminal 112 is subscribed to the ringback tone replacement sound service using the (S318).

The incoming mobile telecommunication switching center 142 provides a typical ring back tone to the calling mobile communication terminal 110 through the calling mobile telecommunication switching station 140 when it is not subscribed to the ringback tone replacement sound service as a result of checking in step S318 ( S319), in case of subscribing to the ringback tone replacement sound service, transmits a signaling message for determining whether a general codec ringback tone call or a multimedia codec ringback tone call is transmitted to the sound source providing apparatus 180 and sets up a ringback tone call. (S320).

The sound source providing device 180 that sets up the ringback tone call with the incoming mobile communication switching center 142 requests sound source authentication from the sound source control server 194 (S322), and if the sound source authentication succeeds, ring from the sound source control server 194 Receives a back tone replacement sound source (S324).

The sound source providing device 180 determines whether it is a multimedia codec ringback tone call according to a signaling message received from the terminating mobile communication switching center 142 (S326).

When the sound source providing apparatus 180 determines that the multimedia codec ringback tone is determined in step S326, the sound source providing apparatus 180 converts the ringback tone substitute sound source into a multimedia codec ringback tone sound source, thereby terminating the mobile communication switching center 142, the calling mobile communication switching center 140, and the calling radio. Via the base station 130 and transmits to the outgoing mobile communication terminal 110 (S328).

The sound source providing device 180 converts the ringback tone substitute sound source into a general codec ringback tone source when determining that the multimedia codec is not a multimedia codec ringback tone call in step S328. The transmission is transmitted to the outgoing mobile communication terminal 110 via the wireless base station 130 (S327).

The sound source providing device 180 releases the ring back tone call when the outgoing mobile communication terminal 110 is connected to the incoming mobile communication terminal 112 and makes a voice call (S330).

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 multiple codecs for converting a ringback tone replacement sound source into a ringback tone sound source corresponding to a ringback tone call and transmitting the ringback tone replacement sound source, the user can replace the high quality ringback tone Sound service can be provided, and the mobile carrier can provide ring back tone replacement sound service only by upgrading the software in the existing system, thereby reducing investment cost and providing efficient network configuration.

Claims (12)

A system for providing a ringback tone replacement sound service to the outgoing mobile communication terminal, comprising: an outgoing mobile communication terminal for requesting a voice call; an incoming mobile communication terminal for receiving the voice call; and a sound source providing unit for providing a ringback tone replacement sound source; To The voice call is received from the originating mobile communication terminal to establish a call path with the originating mobile communication terminal, checks whether the incoming mobile communication terminal is subscribed to a ringback tone replacement tone service, and receives a signaling message. A mobile communication network is used to determine whether it is a general codec ringback tone call or a multimedia codec ringback tone call, and converts the ringback tone substitute sound source into a corresponding ringback tone sound source and transmits it to the calling mobile communication terminal. Including; The mobile communication network, The ringback tone substitute sound source is stored, and whether the normal codec ringback tone call or the multimedia codec ringback tone call is determined using the signaling message, and the ringback tone substitute sound source is converted into the ringback tone sound source. A sound source providing apparatus for transmitting to an outgoing mobile communication terminal; An outgoing radio base station for receiving and transmitting a call call from the outgoing mobile communication terminal and transmitting the ringback tone sound source to the outgoing mobile communication terminal; Receiving the call from the originating radio base station, when the calling mobile communication terminal and the call path is connected, an ISUP call is set, and an outgoing transmission of the ringback tone sound source through the originating radio base station to the originating mobile communication terminal Mobile switching center; And Set up the ISUP call with the originating mobile communication switching center, establish a ringback tone call with the sound source providing apparatus, and relay the ringback tone sound source received from the sound source providing apparatus to the originating mobile communication switching center; System for providing a ringback tone replacement sound service using multiple codecs, comprising: a. The method of claim 1, The ringback tone sound source is a general codec ringback tone sound source or a multimedia codec ringback tone sound system providing a ringback tone replacement sound service using a multiple codecs. delete The method of claim 1, And the signaling message is a message for determining whether the general codec ringback tone call or the multimedia codec ringback tone call is used. The method of claim 1, The sound source providing unit, A sound source control server controlling the sound source providing apparatus and performing sound source authentication using information on callers and called parties and information on call request times; A subscriber DB storing the subscriber information of the ring back tone replacement tone service; And A web server connected to the sound source providing apparatus and the sound source control server to provide the ringback tone substitute sound source to the sound source providing apparatus and to provide an interface function for accessing the sound source providing unit; System for providing a ringback tone replacement sound service using multiple codecs, comprising: a. An apparatus for providing a ringback tone substitute sound service using multiple codecs, A signaling processor configured to receive a signaling message for determining whether a general codec ringback tone call or a multimedia codec ringback tone call is received; A sound source control server interworking unit connected to a sound source control server and requesting sound source authentication to the sound source control server; A sound source storage for storing a ringback tone substitute sound source; A sound source reading unit which loads the ringback tone substitute sound source and delivers the ringback tone substitute sound source; A sound source transmitting processor configured to encode a general codec ringback tone sound source or to decode a multimedia codec ringback tone sound source, and to convert the ringback tone substitute sound source and transmit the converted sound source to a mobile communication terminal; And A main control unit determines whether a general codec ringback tone call or a multimedia codec ringback tone call is generated according to the signaling message, and converts the ringback tone substitute sound source to be transmitted to the mobile communication terminal using the sound source transmission processor. Apparatus for providing a ringback tone replacement sound service using multiple codecs, comprising: a. The method of claim 6, And the ringback tone substitute sound source is a general codec ringback tone sound source or a multimedia codec ringback tone sound source. The method of claim 6, The sound source transmission processing unit provides a ringback tone replacement sound service using multiple codecs, characterized in that for encoding or decoding using A-Law PCM. An outgoing mobile communication terminal for requesting a voice call, an incoming mobile communication terminal for receiving the voice call, a sound source providing unit for providing a ringback tone replacement sound source, receiving the call from the outgoing wireless base station, and receiving the outgoing mobile communication In a system including an outgoing mobile switching center for setting up an ISUP call and a terminating mobile telecommunication switching station for setting up an ISUP call when a terminal and a call path are connected, a ringback tone replacement sound service using multiple codecs is provided. In the method of providing, (a) receiving the signaling message from the terminating mobile telecommunication switching center and establishing a ringback tone call; (b) requesting sound source authentication to the sound source providing unit; (c) receiving the ringback tone substitute sound source from the sound source provider if the sound source authentication is successful; (d) determining whether the multimedia codec is a ringback tone call according to the signaling message; And (e) if it is determined in step (d) that the multimedia codec ringback tone is called, converting the ringback tone substitute sound source into a multimedia codec ringback tone source and transmitting the same to the calling mobile terminal; Method for providing a ringback tone substitute sound service using multiple codecs, comprising the. The method of claim 9, The ring back tone substitute sound source is a general codec ring back tone sound source or a multimedia codec ring back tone sound source providing a ring back tone substitute sound service using a multiple codecs. The method of claim 9, wherein between step (d) and step (e), (d1) if it is determined in step (d) that the multimedia codec is not a ringback tone call, converting the ringback tone substitute sound source into a general codec ringback tone sound source and transmitting it to the calling mobile communication terminal; Method for providing a ringback tone replacement sound service using multiple codecs, characterized in that it further comprises. The method of claim 9, wherein after step (e): (f) releasing the ringback tone call when the outgoing mobile terminal is connected to the incoming mobile terminal by a voice call; Method for providing a ringback tone replacement sound service using multiple codecs, characterized in that it further comprises.

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