KR100696267B1 - Multimedia ring-back-tone service method and apparatus using voice multiplexing in wireless telecommunications system - Google Patents

Abstract

The present invention relates to a method and an apparatus for providing a multimedia ringback tone service using voice channel multiplexing. The multimedia ringback tone service method is provided in a mobile communication system connected to a service management server providing a multimedia ringback tone service through an intelligent network. In the method for providing a multimedia ringback tone service to a mobile communication terminal, when the mobile communication terminal requests call setup as a called party, sound data and text and / or image preset by the called party (hereinafter referred to as text / image) Receiving data; Compressing the acoustic data through vocoding and performing protocol control for multiplexing the text / image data onto the acoustic data; Multiplexing the sound data and text / image data; Transmitting the multiplexed data to the mobile communication terminal through a voice channel through the mobile communication system; And demultiplexing the multiplexed data into the sound data and the text / image data by a voice channel multiplexing client (MPC) software in the mobile communication terminal.

Mobile communication system, multimedia ringback tone, MPC

Description

MULTIMEDIA RING-BACK-TONE SERVICE METHOD AND APPARATUS USING VOICE MULTIPLEXING IN WIRELESS TELECOMMUNICATIONS SYSTEM}

1 is a view showing the configuration of a mobile communication system according to a preferred embodiment of the present invention.

2 is a view showing an operation procedure for providing a ring back tone according to an embodiment of the present invention.

3A and 3B illustrate a configuration of a mobile communication terminal having a voice channel multiplexing client (MPC) according to a preferred embodiment of the present invention.

4 is a diagram illustrating a configuration of a service management server according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a configuration of an MPC algorithm according to a preferred embodiment of the present invention.

6 is a flowchart illustrating a multiplexing operation of sound and data according to a preferred embodiment of the present invention.

7 is a flowchart illustrating a demultiplexing operation of sound and data according to a preferred embodiment of the present invention.

The present invention relates to a mobile communication system, and more particularly, to a method and apparatus for providing a multimedia ringback tone service using voice channel multiplexing.

A third generation mobile communication system such as International Mobile Telecommunications (IMT) -2000 or Code Division Multiple Access (CDMA) -2000 is a caller who transmits music or a specific character preset by a receiver (called party) at the time of call alerting. Support ring tone service to send. In general, the ring back tone service is provided to the caller from the caller's call attempt to the caller's call. The call ringer service replaces a simple ringback tone provided by the system with the sound selected by the caller.

However, the ring back tone service that has been provided in the past was merely to select and provide one of the standardized sound provided by the service provider, there was a problem that could not provide the caller with a variety of personal information related to the called party.

On the other hand, current mobile communication terminals mostly provide a voice channel multiplexing function for direct communication between a phone-to-phone or a phone-to-server. Such a mobile communication terminal may be equipped with client software for performing a multiplexing function, perform text chat or data transmission with another mobile communication terminal, or request separate data by accessing a server performing a multiplexing function.

Accordingly, for a mobile communication terminal having a multiplexing function, a variety of texts, images or videos that can satisfy the user's needs as well as simple sounds are transmitted to the sender by multiplexing the sound, and the caller sends the provided multimedia ring. There is a need for a method to output backtone data.

Accordingly, the present invention, which is invented to solve the problems of the prior art operating as described above, provides a method and apparatus for servicing a multimedia ringback tone using a voice channel multiplexing function of a mobile communication system.

The present invention provides a method and apparatus for delivering a multimedia ringback tone sound and a text or image preset by a called party to a caller upon a caller's call attempt.

In order to achieve the above object, the multimedia ring back tone service method according to an embodiment of the present invention provides a multimedia ring back tone service to a mobile communication terminal in a mobile communication system connected through a smart network and a service management server for providing a multimedia ring back tone service. A method of providing, comprising: receiving sound data and text and / or image (hereinafter referred to as text / image) data preset by the called party when the mobile communication terminal requests a call setup to a called party; Compressing the acoustic data through vocoding and performing protocol control for multiplexing the text / image data onto the acoustic data; Multiplexing the sound data and text / image data; Transmitting the multiplexed data to the mobile communication terminal through a voice channel through the mobile communication system; And demultiplexing the multiplexed data into the sound data and the text / image data by a voice channel multiplexing client (MPC) software in the mobile communication terminal.
When the called party responds to the call establishment request, the multimedia ringback tone service method stops the transmission of the multiplexed data and establishes a call between the caller and the called party.
The transmitting of the multiplexed data may include transmitting the multiplexed data to a base station controller via a mobile switching center of the mobile communication system; Rate adapting the multiplexed data at the base station controller; And transmitting the rate-adapted data to the mobile communication terminal through a wireless channel by a base station transceiver.
The multimedia ring back tone service method further includes demultiplexing the multiplexed data into the sound data and the text / image data by a voice channel multiplexing client (MPC) software in the mobile communication terminal. .
The multimedia ringback tone service method according to an embodiment of the present invention is a method for receiving a multimedia ringback tone service from a mobile communication system connected to a service management server providing a multimedia ringback tone service through an intelligent network. Requesting a call setup of the; Receiving multiplexed data including sound data and text or image (hereinafter referred to as text / image) data set by the called party from the service management server through the mobile communication system; Demultiplexing the multiplexed data into sound data and text / image data by means of a voice channel multiplexing client (MPC) software in the mobile communication terminal; And outputting the sound data to a speaker through vocoding and sound processing, and displaying the text / image data on a display window through protocol control.
Multimedia ringback tone service apparatus according to an embodiment of the present invention includes a sound management database (DB) unit for storing the sound data and text / image data set by the called party to provide the multimedia ringback tone service; An intelligent network connecting the service management server to a mobile communication system; A home location register (HLR) connected with the service management server through the intelligent network; When the caller requests the call setup to the called party, the call is received by the HLR to receive information on whether the subscriber is a subscriber, the location of the called party, the terminal information of the caller, and the terminal information of the caller to the service management server. An originating mobile switching center (MSC) for providing sound data and text / image data set by the called party from a service management server to the caller as a ring back tone; And a receiving mobile switching center that calls a called party at the request of the calling mobile switching center and notifies the calling mobile switching center when the called party answers the call.
The sender is a mobile communication terminal which demultiplexes the multiplexed data into the sound data and the text / image data by means of voice channel multiplexing client (MPC) software.
The service management server may include an authentication unit that determines whether to subscribe to a service based on the caller and the called party's telephone number and receives the caller's terminal information from the calling MSC to determine whether the caller is equipped with a voice channel multiplexing client; An interface unit for accessing the service management server through the intelligent network; a data output unit for outputting multimedia ringback tone data including at least one of preset music, text, and image through information of the called party authenticated through the authentication unit; ; A multiplexing unit multiplexing the multimedia ringback tone data received through the data output unit; A transceiver configured to transmit the multiplexed data to the originating MSC; And a sound source setting unit for receiving multimedia ringback tone data such as a sound source set by a user who subscribes to the multimedia ringback tone service and storing the received multimedia ringback tone data in the sound source DB unit.

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The present invention to be described later by using the voice channel multiplexing function of the mobile communication terminal, by providing a text or an image with the sound set in advance by the called party, it is possible to provide a variety of information about the called party to the caller before the call connection will be.

1 shows a configuration of a mobile communication system according to a preferred embodiment of the present invention.

Referring to FIG. 1, the caller 11 is a mobile communication terminal (hereinafter referred to as MS) that a user can carry and communicate with while moving. The caller 11 is a PDA (Personal Digital Assistants), a notebook, a cellular phone, or a PCS. Services) phones, as well as next-generation mobile communication terminals such as IMT-2000, CDMA-2000, Universal Mobile Telecommunications Service (UMTS). In particular, the caller 11 has software and hardware capable of displaying text and / or images (hereinafter referred to as text / image) simultaneously or independently of a dial tone by mounting client software for performing voice channel multiplexing for the present invention. Doing. The called party 23 is a mobile communication terminal MS capable of communicating with the caller 11.

The user of the called party 23 subscribes to the multimedia ringback tone service, the music management service 31 for the multimedia ringback tone service, pre-selected music, text for brief self-introduction, and a picture image containing his / her appearance. Register the multimedia ringback tone data. For example, a user connects to the service management server 31 through the Internet 33 using a personal computer (PC) 35, and the service management server through a web site providing a multimedia ringback tone service. Register the desired multimedia ringback tone data in (31).

Both the sender 11 and the receiver 23 communicate with base transceiver stations (BTSs) 13 and 21 that cover the cells in which they are located, respectively, through a wireless channel, and the base station transceivers 13, 21 connects to a Mobile Switching Center (MSC) 15 and a destination MSC 19, respectively. The mobile switching centers 15 and 19 operate as Service Switching Points (SSPs) for accessing the Advanced Intelligent Network (AIN) 25, and the Home Location Register (HLR) 17 Is connected to the Service Control Point (SCP) 27 of the intelligent network 25. The service control point 27 connects to the service management server 31 by an intelligent peripheral (IP) 29.

When the caller 11 equipped with the voice channel multiplexing client connects the radio channel with the base station transceiver 13 and attempts to call the called party 23, the calling MSC 15 sends the caller 11 to the HLR 17. And the calling party 23 by calling the telephone number (Calling Telephone Number (CTN)) after the authentication of the caller 11 and forwards the call request to the destination MSC (19). The destination MSC 19 calls the called party 23 through the base station transceiver 21. At this time, the HLR 17 recognizes that the called party 11 is a multimedia ringback tone service subscriber and informs the calling MSC 15 of this. The originating MSC 15 then checks whether the originator 11 is equipped with a voice channel multiplexing client according to the subscriber information of the originator 11 received from the HLR 17. The identified information is transmitted to the service management server 31 through the intelligent network 25. The service management server 31 multiplexes the multimedia ringback tone data, such as music, text, and images, registered in advance by the called party 23 into the voice channel, and provides the caller 11 with the voice channel.

On the other hand, when the called party 23 answers the call of the base station transceiver 21, the call response arrives from the destination MSC 19 to the originating MSC 15. Then, the calling MSC 15 cuts off the connection with the service management server 31 and terminates the provision of the multimedia ringback tone data, and then connects with the called MSC 19 to make a call between the calling party 11 and the called party 23. Connect and make a call. In other cases, even when the caller 11 gives up the call request or the caller 23 has no response waiting time and is switched to the voice mailbox, the calling MSC 15 blocks the connection with the service management server 31 and the multimedia ring. End of providing backtone data.

2 illustrates an operation procedure for providing a ring back tone according to a preferred embodiment of the present invention.

Referring to FIG. 2, in step 202, the caller 11 calls the called party 23 and accesses the calling MSC 15 for the first time. In step 204, the originating MSC 15 receives the multimedia ringback tone service subscription information of the called party 23, the location information of the called party 23, the terminal information of the calling party 11, etc. by receiving an inquiry to the HLR 17. Using the location information of 23, the caller requests a call connection to the destination MSC 19, and at the same time, provides the terminal management information of the caller 11 to the service management server 31 through the intelligent network 25. The terminal information of the caller 11 here indicates whether the caller 11 is equipped with voice channel multiplexing client software and whether the caller 11 can be provided with a multimedia ringback tone.

In step 206, the service management server 31 determines whether to provide a multimedia ringback tone according to the terminal information of the caller 11 received from the originating MSC 15, and if so, sends the corresponding multimedia ringback tone data. Provided to the caller 11 through 15. When the called party 23 answers the call in step 208, the calling MSC 15 terminates the connection between the calling party 11 and the service management server 31 and receives the calling party 11 through the receiving MSC 19. To make a call.

3A and 3B illustrate a configuration of a mobile communication terminal having a voice channel multiplexing client (MPC) according to a preferred embodiment of the present invention. FIG. 3A illustrates a configuration of an existing mobile phone and a mobile phone equipped with an MPC, and FIG. 3B illustrates an algorithm configuration of the MSC software.

Referring to FIG. 3A, an existing mobile phone 302 includes an application program 304 for outputting content, and a wireless Internet platform such as Wireless Internet Platform for Interoperability (WIPI), Java, and Binary Runtime Environment Wireless (BREW). Radio access hardware / software 310 comprising a run-time engine 306, a hardware adaptation layer (HAL) 308 implementing the wireless Internet platform, and handset hardware and native system software for connecting to the radio access network. ).

The MPC-equipped mobile phone 312 also likewise has an application program 314, a run-time engine 316, a HAL 318, and a radio access hardware / software 310. Wherein the HAL 318 includes MPC software 322. As shown in FIG. 3B, the algorithm configuration of the MPC software 322 includes a voice matching unit 330, a vocoder unit 332, a data processing unit 334, a protocol processing unit 336, and a terminal matching unit 338. .

Referring to FIG. 3B, the voice matching unit 330 converts and outputs the input voice signal at 64 kbps, and the vocoder 332 vocodes the voice signal input through the microphone to the voice matching unit 330. Output The data processor 334 multiplexes voice data and wireless data (ie, text / image data) and transmits the data to the wireless modem of the wireless access hardware / software 310 or transmits the data received through the wireless modem to the voice data and the wireless data. Demultiplex the output to. Here, the data received through the wireless modem may be multimedia ringback tone data. The protocol processor 336 manages interface and transmission / reception information with the outside and controls the decomposition and combining of the wireless data according to the service option of the wireless modem and the rate of the voice data. The terminal matching unit 338 performs matching with the HAL 308 and the MPC software 322.

4 shows a configuration of a service management server according to a preferred embodiment of the present invention.

Referring to FIG. 4, the service management server 402 is connected to the intelligent network peripheral / wired internet 420 and reads the called party's multimedia ringback tone data from the voice database (DB) unit 422. The service management server 402 includes an authentication unit 404, an interface unit 406, a multiplexing unit 408, a transceiver 410, a sound source setting unit 412, a data output unit 414, a control unit 416 It consists of.

The authentication unit 404 determines whether to subscribe to a service through information (telephone number) of the user (caller and called party) and receives caller's terminal information from the calling MSC to determine whether the caller is equipped with a voice channel multiplexing client. The interface unit 406 is responsible for interfacing with an external network, that is, the intelligent network peripheral device / wired internet 420. The multiplexing unit 408 multiplexes multimedia ringback tone data, such as sound, text, and image, received from the acoustic DB unit 422 through the data output unit 414, and transmits the multiplexing unit 410 to the originating MSC through the transmitting / receiving unit 410.

The transceiver 410 transmits and receives a dual tone multiple frequency (DTMF) signal, a control signal of an automatic response service (ARS) setting through a public switched telephone network (PSTN), and a control signal through the Internet. Here, the control signal means a signal for the user to set the multimedia ring back tone data. In particular, the transceiver 410 transmits the multiplexed data to the originating MSC. The sound source setting unit 412 is responsible for receiving multimedia ringback tone data such as a sound source set by a user who subscribes to the multimedia ringback tone service and storing the same as the sound source DB unit 422. In this case, the sound source setting unit 412 may receive the setting information of the multimedia ringback tone data from the user through ARS, wired Internet, or wireless Internet through the transceiver 410.

The data output unit 414 transmits the multimedia ringback tone data including at least one of preset music, text, and image to the multiplexing unit 408 through information of the called party authenticated by the authenticator 404. The controller 416 is responsible for function control and interworking of the above-mentioned elements.

5 is a block diagram of an MPC algorithm according to a preferred embodiment of the present invention. Here, the MPC algorithm of the mobile communication terminal for interworking with No. 7 signaling network is shown.

Referring to FIG. 5, a signaling channel 516 that carries control information related to call setup and maintenance is processed through the third layer 514 and the second layer 512. The voice of the user, which is to be transmitted through the voice channel 502, is voice compressed by the vocoder 504 and then input to the data processor 508. The protocol control unit 506 controls the service options and the vocoder rate. The data processor 508 multiplexes the radio data separate from the voice data from the vocoder 504. The signal of the signaling channel 516 and the multiplexed data of the voice channel 502 are transmitted or received by the first layer 510.

6 is a flowchart illustrating a multiplexing operation of sound and data according to a preferred embodiment of the present invention.

Referring to FIG. 6, in step 602, the service management server receives data provided from a sound source DB, that is, sound data and text / image data, according to a setting of a called party. In operation 604, the acoustic data is compressed through vocoding, and in operation 606, protocol control for multiplexing the text / image data onto the acoustic data is performed.

In step 608, the service management server multiplexes the sound data and the text / image data, and in step 610, the multiplexed data is transferred to the mobile switching center. In step 612, the MS exchanges the multiplexed data to a base station controller (BSC). The base station controller is located between the mobile switching center and the base station transceiver and is responsible for the vocoding of acoustic data for rate adaptation with the radio channel. In step 614, the base station controller performs rate adaptation to match the multiplexed data with a rate of a wireless channel. In step 616, the eight-adapted data is transmitted through a wireless channel by a base station transceiver to a mobile communication terminal equipped with MPC.

7 is a flowchart illustrating a demultiplexing operation of sound and data according to a preferred embodiment of the present invention.

Referring to FIG. 7, the multiplexed data is transferred from the mobile switching center in step 702. In step 704, the base station controller performs rate adaptation on the data transmitted from the mobile switching center. In step 706, the rate-adapted data is transmitted to the data processor of the mobile communication terminal.

In step 708, the mobile communication terminal demultiplexes the received data into sound data and text / image data by the data processor. The sound data is subjected to vocoding in step 710 and is output to the speaker after sound processing in step 712. The text / image data is displayed on the display window of the mobile communication terminal in step 716 through protocol control in step 714.

As described above, according to the present invention, in a mobile communication system connected to a service management server for providing multimedia ringback tone data through an intelligent network, multiple data such as text or image set by the called party are multiplexed to a voice channel together with sound data. By transmitting the information, various information about the called party is provided to the caller before the call is connected, thereby satisfying various needs of the user.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (9)

A method of providing a multimedia ringback tone service to a mobile communication terminal in a mobile communication system connected through a service management server providing a multimedia ringback tone service and an intelligent network, When the mobile communication terminal requests call setup as a called party, receiving sound data and text and / or image (hereinafter referred to as text / image) data preset by the called party; Compressing the acoustic data through vocoding and performing protocol control for multiplexing the text / image data onto the acoustic data; Multiplexing the sound data and text / image data; Transmitting the multiplexed data to the mobile communication terminal through a voice channel through the mobile communication system; And And demultiplexing the multiplexed data into the sound data and the text / image data by a voice channel multiplexing client (MPC) software in the mobile communication terminal. Way. The method of claim 1, Transmitting the multiplexed data, Transmitting the multiplexed data to a base station controller via a mobile switching center of the mobile communication system; Rate adapting the multiplexed data at the base station controller; And And transmitting the rate-adapted data to the mobile communication terminal through a wireless channel by a base station transceiver. delete The method of claim 1, If the called party responds to the call establishment request, stopping the transmission of the multiplexed data and establishing a call between the caller and the called party. In a method for a mobile communication terminal to receive a multimedia ringback tone service from a service management server providing a multimedia ringback tone service and a mobile communication system connected through an intelligent network, Requesting call establishment to the called party; Receiving multiplexed data including sound data and text or image (hereinafter referred to as text / image) data set by the called party from the service management server through the mobile communication system; Demultiplexing the multiplexed data into sound data and text / image data by means of a voice channel multiplexing client (MPC) software in the mobile communication terminal; And And outputting the sound data to a speaker through vocoding and sound processing, and displaying the text / image data on a display window through protocol control. delete A service management server including a sound source database (DB) unit for storing sound data and text / image data set by a called party and providing the multimedia ringback tone service; An intelligent network connecting the service management server to a mobile communication system; A home location register (HLR) connected with the service management server through the intelligent network; When the caller requests a call setup to the called party, the call is received by the HLR to receive information on whether the called party is a subscriber of the multimedia ringback tone service, the location of the called party, and the terminal information of the calling party. An outgoing mobile switching center (MSC) which provides information and provides, from the service management server, sound data and text / image data set by the called party to the caller as a ring back tone; And A receiving mobile switching center that calls a called party at the request of the calling mobile switching center and notifies the calling mobile switching center when the called party answers the call; And the caller is a mobile communication terminal for demultiplexing the multiplexed data into the sound data and the text / image data by means of a voice channel multiplexing client (MPC) software. The method of claim 7, wherein The service management server, An authentication unit for determining whether to subscribe to a service based on the caller and the called party's telephone number and receiving the caller's terminal information from the calling MSC to determine whether the caller is equipped with a voice channel multiplexing client; An interface unit accessing the service management server through the intelligent network; A data output unit configured to output multimedia ringback tone data including at least one of preset music, text, and image through information of the called party authenticated through the authentication unit; A multiplexing unit multiplexing the multimedia ringback tone data received through the data output unit; A transmitter / receiver for transmitting the multiplexed data to the originating MSC; And And a sound source setting unit configured to receive multimedia ringback tone data, such as a sound source set by a user who subscribes to the multimedia ringback tone service, and store the same as a sound source DB unit. delete

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