KR100608282B1 - Method of providing multimedia service while originating a video communication - Google Patents

Abstract

Disclosed is a multimedia service method provided in an attempt to make a video call. The present invention relates to a multimedia service provided when attempting a video call, and more particularly, to provide a multimedia content set by a called subscriber to a calling mobile terminal through a circuit-switching scheme of an asynchronous network. In accordance with an aspect of the present invention, when receiving a video call request from an originating mobile terminal, checking whether a terminating mobile terminal is registered with a multimedia service, and when the terminating mobile terminal is registered with a multimedia service, Simultaneously setting up a call between the calling mobile terminal and the multimedia service providing unit, providing a multimedia service to the calling mobile terminal through the set call, and a call between the calling mobile terminal and the called mobile terminal. When connected, characterized in that the step of stopping the transmission of the multimedia service from the multimedia service provider to the originating mobile terminal. Therefore, the caller is able to receive a high-speed, high-quality multimedia service until the call is made between the caller and the called party.

Switchboard, Home Locator, Mobile Network, Multimedia Service

Description

Multimedia service provided when attempting a video call {METHOD OF PROVIDING MULTIMEDIA SERVICE WHILE ORIGINATING A VIDEO COMMUNICATION}

1 is a block diagram of a multimedia service network according to an embodiment of the present invention.

2 is a block diagram of a multimedia service network according to another embodiment of the present invention.

3 is a flowchart illustrating a service registration method for using a multimedia service according to an embodiment of the present invention.

4 is a flowchart illustrating a call processing of a multimedia service according to an embodiment of the present invention.

*** Brief description of the main parts of the drawing ***

10, 20: mobile terminal 12, 22: base station (Node-B)

14, 24: base station controller (RNC) 16, 26: switchboard (MSC)

18, 28: home location register (HLR) 30: cellular gateway system (CGS)

50: Integrated Customer Information System (COIS)

60: multimedia service provider (CMS)

62: multimedia data management server (CMS server)

64: multimedia data transmission device (CMS IP)

72: gateway (GW) server 74: content providing (CP) server

80: content provider (CP) 92,94: Internet network

100: mobile communication network

The present invention relates to a multimedia service provided when a video call is attempted in a communication network. More specifically, the multimedia content set by a called subscriber is transmitted to a caller until a video call between a caller and a caller is connected through a circuit-switching method in an asynchronous network. It is about a method to provide.

Recently, with the development of communication technology, the number of mobile subscribers has exploded and various services have been provided to attract more customers.

In particular, with the provision of an integrated services digital network (ISDN) in which the communication network is completely digital, it is possible to provide not only voice information but also data, facsimile and even video services on one network.

In general, among the various services, a service that can express a user's personality is becoming popular. For example, when a caller attempts a phone call, a call ring tone (song, sound effect, Ringback tones (aka, coloring) services are popular.

However, the current video call has a problem in that it cannot provide various services corresponding to the video call because only the ring back tone stored in the memory of the terminal and the screen illuminated by the outgoing mobile terminal camera can be provided until the call is connected. .

In addition, until now, a synchronous communication network such as CDMA (code division MA) provides a video service using a packet method, but it has many problems in terms of cost and quality for use by a large number of users. .

 Therefore, in order to support the video service more efficiently, there is a trend of providing a service using a circuit switching scheme in a communication network such as wideband CDMA (WCDMA).

The present invention has been made to solve the above problems and to meet the needs of the times, an object of the present invention is to attempt to make a video call using a circuit-switched communication network, the multimedia service providing unit multimedia content set by the called subscriber To provide to the calling mobile terminal.

 In order to achieve the above object, a multimedia service method provided in an attempt to make a video call according to the first aspect of the present invention includes a) receiving a video call request from an originating mobile terminal, and b) receiving the video call request. Checking whether the multimedia service of the called mobile terminal is activated; c) if the multimedia service of the called mobile terminal is activated, paging to the called mobile terminal and simultaneously between the calling mobile terminal and the multimedia service provider. Setting up a call; d) checking whether there is a multimedia code of the called mobile terminal in the multimedia service providing unit, and if there is the multimedia code, providing a multimedia service to the calling mobile terminal through the set call. And e) between the calling mobile terminal and the called mobile terminal. If the call is connected, characterized in that it comprises the step of stopping the multimedia service providing from the multimedia service provider to the calling mobile terminal.

And the multimedia service method provided when attempting a video call according to the second aspect of the present invention for achieving the above object ⅰ) When receiving a video call request from the calling mobile terminal, whether or not to activate the multimedia service of the called mobile terminal; Confirming, ii) when the called mobile terminal is activated with a multimedia service, simultaneously setting up a call between the calling mobile terminal and the multimedia service provider while paging to the called mobile terminal; Checking whether there is a multimedia code of the called mobile terminal in a service providing unit, and if there is the multimedia code, providing a multimedia service to the calling mobile terminal through the set call; i) an incoming response from the called mobile terminal; Receive or receive a message If the failure to receive a paging and call reception response, characterized by comprising the step of: from the multimedia service provider stops providing the multimedia service to the originating mobile terminal.

With reference to the accompanying drawings, a person having ordinary knowledge in the technical field to which the present invention pertains to an embodiment of a method for providing a multimedia content set by a called party to a calling mobile terminal when a video call is attempted in the communication network of the present invention. It demonstrates in detail so that implementation may be carried out easily.

1 is a diagram illustrating a multimedia service network according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a multimedia service network according to another embodiment of the present invention.

 For convenience of description, the mobile communication terminal is divided into the calling mobile terminal 10 and the called mobile terminal 20, and the components of the mobile communication network also include the calling party components 10, 12, 14, 16, 18 and the called party. The elements 20, 22, 24, 26 and 28 will be described separately.

As shown in FIG. 1, the multimedia service network includes a mobile terminal 10, 20, a base station (Node-B) 12, 22, a base station controller (RNC) 14, 24, a mobile switching center (MSC / VLR). It includes a visitor location register (16, 26) and a home location register (HLR) (18, 28), and preferably comprises a CGS (Cellular Gateway System) (30).

In addition, the multimedia service network further includes a multimedia service providing unit 60.

The base stations (Node-Bs) 12 and 22 perform communication between radio stations with the mobile communication terminals 10 and 20, and the base station controllers (RNC) 14 and 24 control a plurality of base stations and perform voice communication and Support data communication.

The MSC / VLR (16, 26) is a network configuration device that is most important for providing a mobile communication service to manage the switching role and subscriber information to transfer the call of the calling terminal to the destination terminal provides a wired communication function and a mobile communication function. It is a composite digital exchange.

The HLR (18,28) is a database system that provides the system for requesting the information while storing and managing the location, status information of the mobile terminal (10, 20) when the mobile terminal (10, 20) originating from, When registering, it serves to provide almost all subscriber data to the VLR of the MSCs 16 and 26, such as when the call is received to the mobile terminals 10 and 20, and has location information necessary for the call to the mobile terminals 10 and 20. In other words, it is generally called a home location register as a system that guarantees user mobility, which is the most distinguishing feature of wired telephone and mobile communication.

At this time, the MSC / VLR (16, 26) and the HLR (18, 28) exchanges all information and data through the No.7 network based on the Signaling Transfer Protocol (STP).

In addition, the CGS 30 is an apparatus for interworking with other networks and exchanging roles between a plurality of MSCs, and the capacity of a single MSC is limited. Therefore, the number of users of the mobile terminals 10 and 20 increases. It is a device that binds an increasing MSC to a certain amount of units and processes information by interworking with each other.

Hereinafter, a multimedia service network according to another embodiment of the present invention including the multimedia service providing unit will be described in more detail.

 As shown in FIG. 2, the multimedia service network includes the components 12, 22, 14, 24, 16, 26, 18, 28, and 30 described above with reference to FIG. 1. 74), it further comprises a COIS (50) and the Internet network (92,94) is composed of circuit-switched (Circuit-switched).

The circuit-switched A type of network in which a physical path is acquired during connection time in order to concentrate on a single connection between two points in data communication.It sets up a high-speed, high-quality communication path to exchange data each time communication is performed between transmitting and receiving terminals. That's the way.

This includes space-division switching and time-division switching using digital transmission technology. The communication line is established by the terminal-to-terminal exchange and the information is transmitted by the dedicated line. Form.

Therefore, it is suitable for communication requiring continuous and real time transmission such as voice and video.

The CP (Content Provider) 80 is a multimedia content provider, and the CP (Content Provider) server 74 is in charge of interfacing with the Internet networks 92 and 94. Path) provides and manages statistics and billing by CP.

That is, when registering new multimedia content, a code according to CP content for multimedia is allocated and transmitted to the multimedia service provider 60.

In addition, the multimedia service provider 60 is referred to as a multimedia data management server (hereinafter referred to as a CMS server) 62 and a multimedia data storage and transmission device 64 (hereinafter referred to as CMS IP). It is configured to include).

remind The multimedia data management server 62 manages a subscriber database for receiving the CMS and a code according to multimedia content allocated by the CP server 62 for each subscriber.

Meanwhile, the multimedia service refers to a comprehensive service that provides various multimedia contents such as voices, texts, symbols, figures, still images and moving images to the mobile terminals 10 and 20.

The CMS (Intelligent Peripheral) 64 is a device for transmitting data according to the multimedia content. The CMS is connected to the CMS server 62 and connected to the CGS 30, and managed by the CMS server 62. Data according to the content is transmitted to the originating MSC 16.

remind The Customer Oriented Information System (COIS) 50 is a customer-oriented information system that is a comprehensive information system that manages customer management, billing, billing, and payment.

The internet network 92, 94 includes an internet network 92 that can be accessed through the mobile terminals 10, 20, and an internet network 94 that can be accessed through a web page provided by a personal computer (PC). It is desirable to.

Meanwhile, Internet networks 92 and 94 currently used as communication services include NATE and JUNE provided to mobile terminals, and e-station provided to PCs through web pages.

In addition, the gateway (GateWay, hereinafter referred to as GW) server 72 is a server responsible for the interface between the mobile communication network 100 and the Internet network (92,94) performs a security (Security) and Firewall (Firewall) function.

The multimedia service provider 60 connects the COIS 50, the GW server 72, and the CP server 74, and the GW server 72 connects the mobile communication network 100 with TCP / IP. The server 74 connects the CP 80 and the Internet networks 92 and 94 with TCP / IP and WAP to exchange information and data with each other.

The MSC / VLRs 16 and 26 and the CGS 30 of the mobile communication network 100 exchange data with each other in an ISUP type circuit-switched circuit.

Next, a method of providing a multimedia content set by a called subscriber to a calling mobile terminal in an attempt to make a video call according to the present invention based on a system including the above components will be described in detail.

First, in order to help the understanding of the present invention, the parameters required for the call processing of the above-described configuration will be described.

Sending Routing Information Request (SRIREQ) operation is performed by MSC 16 or CGS 30 to obtain incoming location information from HLRs 18 and 28.

The call is then identified by the dialed mobile terminal 10 address digit received by the MSC 16 or CGS 30.

Provide Roaming Number Request (PRNREQ) operation is to request information in order to route a call to the destination mobile terminal 20.

Origination CAMEL Subscription Information (O-CIS) operation is a request for outgoing processing from the mobile terminal 10 to the HLR.

That is, the MSC 16 queries the HLR 18 by an O-CIS Trigger that is armed in the called party's profile and analyzes the digit received from the HLR 18 to satisfy the requirements. To deal with.

The O-CIS Trigger plays a role of activating or deactivating a multimedia service, and the MSC receives an armed digit from a mobile terminal and transmits it to a corresponding HLR to be set by a called subscriber. Enable or disable one multimedia service.

For example, when a called subscriber wants to stop providing the multimedia service for a certain period of time, the called subscriber deactivates the multimedia service set through a specific digit such as "* 550" of the called mobile terminal.

3 is a flowchart illustrating a service registration method for using a multimedia service according to an embodiment of the present invention.

A user of a mobile terminal 20 who wants to use a multimedia service (CMS) connects to the Internet networks 92 and 94 or applies for the multimedia service (CMS) over a telephone.

On the other hand, the user means the called party, and therefore, the calling mobile terminal is provided with the multimedia content set by the called party.

 In the service request, the COIS 50 sets up the subscriber and requests the HLRs 18 and 28 to register as multimedia service users.

The HLRs 18 and 28 set parameters related to multimedia services in a database storing subscriber information of the mobile terminal 20 and transmit the set data to the MSCs 16 and 26.

Upon receiving the set data from the HLRs 18 and 28, the MSCs 16 and 26 store it and send a response message according to the set data to the HLRs 18 and 28.

Meanwhile, the parameter related to the multimedia service (CMS) includes a parameter necessary for activating or deactivating the multimedia service (CMS).

Subsequently, the HLRs 18 and 28 receiving the response from the MSCs 16 and 26 register the multimedia service (CMS) and notify the COIS 50 of the result.

If there is no location registration information in the HLRs 18 and 28, related information is not sent to the MSC916 and 26.

In this way, a service registration called party who subscribes as a multimedia service (CMS) member to a multimedia service (CMS) provider is connected to the CMS server 62 through the Internet networks 92 and 94 to register his or her multimedia contents in advance. Then, CMS server 62 stores and manages the code according to the multimedia content of the called party.

4 is a flowchart illustrating a call processing of a multimedia service according to an embodiment of the present invention.

That is, when the caller attempts a video call to the called party subscribed to the multimedia service, a flowchart for explaining a method for providing the caller's mobile terminal 10 with the multimedia content set by the called subscriber registered in the multimedia service providing unit 60. to be.

When the caller requests a call connection by dialing the telephone number of the called mobile terminal 20 using the mobile communication terminal 10 capable of video calling, the calling MSC 16 dialed the dialed digit to the called HLR 28. Request incoming information (SRI: SendRoutingInfo) including Digits) (S10).

In this case, it is preferable that the call requested by the calling mobile terminal to the called mobile terminal is an image call and transmitted according to the parameter of the called information.

Subsequently, the incoming HLR 28, which has received the incoming information request from the originating MSC 16, retrieves the parameters of the incoming information, and when the mobile terminal of the called subscriber can support the video call, the routing information (the destination information) is sent to the destination MSC 26. ProvideRoamingNumber) (S15).

However, if the caller attempts to make a video call to the mobile terminal 10 capable of making a video call, but the called party's mobile terminal 20 is a mobile communication terminal that does not support the video call, or the codecs between the caller and the called party do not coincide with each other. In this case, it is preferable that the incoming HLR 28 immediately performs a fallback function to the originating MSC 16 to inform that the video call cannot be made so that the voice call is performed.

Meanwhile, the called MSC 26, which has received the routing information request through step S15, allocates routing information (MSRN) and returns a response message to the called routing information to the called HLR 28. (S20)

The destination HLR 28 then returns the response message according to the destination information SRI requested in step S10 to the originating MSC 16 including the routing information MSRN returned from the destination MSC 26. (S25)

The originating MSC 16 which has received the routing information MSRN inverts the routing information MSRN and sets up an ISUP call to the corresponding destination MSC 26 (S30).

At this time, the originating MSC 16 displays and transmits the corresponding call in the (USI: User Service Information) field of the IAM message so as to distinguish the call from the video call.

The User Service Information (USI) field in the initial address message (IAM) message performs a function of distinguishing whether a corresponding call is a voice call or an image call.

If the caller and the called party's mobile communication terminals 10 and 20 are in the same MSC, the video call can be distinguished by a setup message at the call and the call.

Subsequently, the called MSC 26 analyzes the USI field in the IAM message of the ISUP call set to the called MSC 26 in step S30, and recognizes that the call is a video call call, and receives the multimedia service received in the registration step described in FIG. If is activated, paging is performed to the called mobile terminal, and at the same time, the ISUP call is set to the CMS IP using the CMS routing information.

At this time, the IAM message of the ISUP call is transmitted to the CMS IP 64 including the CMS routing information and parameters for the called mobile terminal number information.

At the same time, the CMS IP 64 sends a response message according to the received message to the destination MSC.

The CMS IP 64 requests the CMS server 62 a code according to the multimedia content according to the called party number information, that is, a multimedia code (S45), and then the CMS server 62 requests the multimedia set by the subscriber. The code is returned to the CMS IP 64. (S50)

At this time, if there is no multimedia code according to the called subscriber as a result of the inquiry to the CMS server 62, the multimedia data set as default in the CMS IP is transmitted.

In addition, the CMS IP 64 analyzes the multimedia code received from the CMS server 62 on the set ISUP call and provides corresponding multimedia data to the calling mobile terminal.

On the other hand, when the called mobile terminal answers the call, the called MSC makes a call release request to the CMS IP 64 and transmits a message indicating that the called mobile terminal has answered to the calling MSC to make a video call between the calling mobile terminal and the called mobile terminal. To lose.

As a result, the multimedia service provider stops providing the multimedia content to the calling mobile terminal (S60).

As described above, according to the present invention, by providing a multimedia content set by a called subscriber to a mobile terminal of a caller who can make a video call, the caller can not only determine whether there is a mistaken connection but also enjoy the call until the call is made. It can be provided, and the called party can express his or her personality to the caller.

For example, if the called subscriber is a corporation, the advertisement of the company may be produced in color media and provided to the caller to increase the efficiency of the advertisement.                     

In particular, the communication network applied to the present invention uses the circuit-switched method in the 3rd generation mobile communication (IMT2000), that is, the asynchronous network of WCDMA, and uses the circuit as if it is a dedicated line. I can send it,

In addition, since there is almost no processing delay at the exchange, it is possible to transmit transparent data in time, thereby providing a high speed and high quality multimedia service.

Although a preferred embodiment of the present invention has been described in detail above, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims. will be.

Claims (21)

a) the originating exchange transmitting, to the home location register, the called request information including the predetermined information identifying whether the call requested by the calling mobile terminal to the called mobile terminal is an image call; b) the home location register determines whether the terminating mobile terminal is a terminal supporting the video call, and if it is determined that the terminating mobile terminal is a terminal supporting the video call; Sending to the originating exchange, requesting routing information from the terminating exchange, and receiving response information accordingly; c) the home location register sends the routing information to the originating exchange in response to the incoming information request information so that a call is established between the originating exchange and the destination exchange; d) the destination exchange checks whether the multimedia service of the called mobile terminal is activated, and if the multimedia service of the called mobile terminal is activated, paging to the called mobile terminal is performed simultaneously with the calling mobile terminal. Establishing a call between the multimedia service provider and transmitting the calling mobile terminal information when the call is set up; e) The multimedia service provider searches for the multimedia data registered corresponding to the called terminal, sends the searched multimedia data to the calling mobile terminal, and if the multimedia data is not found, the default multimedia data. Transmitting; And f) stopping the provision of the multimedia service from the multimedia service provider to the originating mobile terminal when receiving an incoming response message from the called mobile terminal or not receiving a paging and incoming response within a predetermined time; The multimedia service providing unit is connected to the Internet network through a web (web) or WAP (WAP), and the steps a) to f) are performed through a communication network to which a circuit switched method is applied Multimedia service method provided. delete The method of claim 1, The multimedia service providing unit includes a multimedia data management server and a multimedia data transmitting apparatus, and performs the method, wherein the multimedia service method is provided. delete delete delete The method of claim 1 wherein the method Performing a fallback function to an originating exchange if the called mobile terminal does not support the video call; And And the originating exchange further comprises establishing a voice call to the destination exchange. The method of claim 1, wherein in step b) And the mobile terminal number information and routing information on the multimedia service to the multimedia data transmitting apparatus of the multimedia service providing unit, and simultaneously receive a response message according to the multimedia service method. The method of claim 1, wherein before step a) Iii) receiving a message for the multimedia service registration request; Ii) setting and transmitting predetermined information related to the multimedia service to an exchange; And Iv) the exchange further comprising storing predetermined information related to the multimedia service and sending a response message accordingly. The method of claim 3, wherein step e) e-1) requesting, by the multimedia data transmitting apparatus, the multimedia code according to the called party number information to the multimedia data management server; e-2) a multimedia data management server searching for a multimedia code corresponding to the request and transmitting the retrieved multimedia code to the multimedia data transmitting device; And e-3) the multimedia transmitting apparatus providing multimedia data corresponding to the multimedia code to the calling mobile terminal, And if the multimedia code corresponding to the request is not retrieved, the multimedia data transmitting apparatus transmits default multimedia data. delete delete delete delete delete delete delete delete delete delete The method of claim 1, wherein whether to activate the multimedia service The multimedia service method provided when attempting a video call, characterized in that performing the function using the O-CIS trigger.

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