KR20080030446A - System and method for providing service in a communication system - Google Patents

Abstract

A service supply system in a communication system and a method thereof are provided to enable a terminal to receive a service by selecting a QoS(Quality of Service) class, thereby receiving a high-quality service corresponding to the terminal's request while an Internet service/contents providing server can apply various charging systems in accordance with provided QoS information. When receiving a request for a service corresponding to quality information of a service from a terminal(440), a service providing server transmits a QoS information request message for providing the service to an interface server. If a QoS information response message equivalent to the QoS information request message is received from the interface server, the service providing server provides the service corresponding to the quality information of the service to the terminal.

Description

SYSTEM AND METHOD FOR PROVIDING SERVICE IN A COMMUNICATION SYSTEM}

1 is a diagram showing the structure of a general communication system

2 is a diagram illustrating a process of providing a service by an Internet service / content providing server in a general communication system.

3 is a diagram illustrating a structure of a communication system according to an exemplary embodiment of the present invention.

4 is a diagram illustrating a process of providing a service by an Internet service / content providing server to a terminal in a communication system according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a terminal connecting to an IPTV server in a communication system according to an embodiment of the present invention.

6 is a diagram illustrating a process in which a terminal receives an IPTV service from an IPTV server in a communication system according to an exemplary embodiment of the present invention.

7 is a diagram illustrating a process of requesting a QoS change by a terminal in a communication system according to an exemplary embodiment of the present invention.

8 is a diagram illustrating a process of requesting a QoS change by an IPTV server in a communication system according to an exemplary embodiment of the present invention.

9 is a diagram illustrating a process of requesting a QoS change by a USI server in a communication system according to an exemplary embodiment of the present invention.

10 is a diagram illustrating a process in which a terminal requests service termination of the IPTV server in a communication system according to an embodiment of the present invention.

11 is a diagram illustrating a process of terminating the IPTV service by the IPTV server in a communication system according to an exemplary embodiment of the present invention.

12 is a diagram illustrating a process of requesting termination of an IPTV service by a USI server in a communication system according to an embodiment of the present invention;

13 is a diagram illustrating a process for providing an IPTV service to a terminal by an IPTV server in a communication system according to an embodiment of the present invention.

The present invention relates to a communication system, and more particularly, to a method and system for providing a service in a communication system.

In general, a communication system is evolving to provide a wireless packet data service based on a voice service. Accordingly, the communication system provides services having various quality of service (hereinafter referred to as 'QoS').

Next, a structure of a general communication system will be described with reference to FIG. 1.

1 is a diagram showing the structure of a general communication system.

Referring to FIG. 1, the communication system includes an internet service / content providing server 110, an internet network 120, a communication network 130, the internet service / content providing server 110, and a communication network 130. Receiver 140).

The Internet service / content providing server 110 is an IPTV that provides Internet Protocol Television (IPTV) service as an application server that provides various Internet services / content. Server 101, a music / video streaming server 102 that provides music / video streaming services, a search server 103 that provides a search service, and an advertising service. Providing advertising server 104, other service server 105, and the like.

In addition, the communication network 130 is a radio access station (RAS) 111 serving as a base station, and an access service network gateway (ASN GW :) in charge of a section of medium access control (MAC) of an access network. Access Service Network Gate Way, hereinafter referred to as "ASN GW" (112), and a core service network (CSN: Core Service Network, hereinafter referred to as "CSN") in charge of connection to the network layer (113). ), Billing server 114, QoS server 115, user profile server 116, device capability server 117, location information server (Location Information Server) 118 and the like.

The receiver 140 includes, for example, a terminal, a personal computer (PC), a personal digital assistant (PDA), a portable multimedia player (PMP), and a camera. Hereinafter, for convenience of description, the receiver 140 will be described using a terminal as an example.

The internet service / content providing server 110 is connected to the internet network 120 to provide various contents services such as IPTV service, music / video streaming service, search, advertisement, and other services to the terminal 140. . That is, the Internet service / content providing server 100 is connected to the terminal 140 in accordance with the IP address provided by the CSN 113 of the communication network 130 and the content service through the Internet network 120. It provides to the connected terminal 140.

Next, a process of providing a service by the Internet service / content providing server will be described with reference to FIG. 2.

2 is a diagram illustrating a process of providing a service by a general Internet service / content providing server in a communication system.

Referring to FIG. 2, first, it is assumed that the terminal 140 receives the IPTV service from the IPTV server 110 as an example in an Internet service / content providing server. If the terminal 140 wants to receive an IPTV service having a predetermined QoS class, the IPTV server 110 provides the terminal 140 with a service having a QoS class that the communication network 130 can support. . That is, the QoS class desired by the terminal 140 is not applied, and the service of the IPTV using a QoS class, for example, a best effort service scheme, which is preset in the communication network 130. It provides to the terminal 140.

As described above, in the communication system, when a terminal is provided with a content service, for example, an IPTV service, there is a problem that each terminal does not provide a service of a predetermined QoS class.

Accordingly, the present invention proposes a service providing system and method considering QoS in a communication system.

In addition, the present invention proposes a service providing system and method applying a charging scheme corresponding to QoS in a communication system.

Hereinafter, the operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

The present invention provides a service providing system in a communication system, requesting a service providing server using a service quality information to be provided, and receiving a service using the service quality information from the service providing server. It includes a terminal.

In addition, the present invention, in a service providing system in a communication system, when a service request corresponding to the quality of service information is requested from a terminal, transmits a service quality information request message for providing the service to an interface server, the service quality And a service providing server that provides a service corresponding to the quality information of the service to the terminal when the service quality information response message corresponding to the information request message is received from the interface server.

In addition, the present invention provides a service providing system in a communication system, the terminal receives the quality information of the service to be provided from the service providing server, obtains information corresponding to the quality of the service, the quality of the obtained service Interface server for providing information to the service providing server.

In addition, the present invention, in the service providing system in the communication system, the terminal for requesting the service using the quality information of the service to be provided, and if the service request corresponding to the service quality information from the terminal is provided, the service provided A service providing server for transmitting a service quality information request message for receiving the service quality information response message corresponding to the service quality information request message, and providing a service corresponding to the quality information of the service to the terminal; And an interface server that receives a service quality information request message from the service providing server, obtains information corresponding to the quality of the service, and provides the obtained service quality information to the service providing server.

In addition, the present invention, in the service providing system in the communication system, the service is requested from the terminal through the access network connected to the terminal, after confirming the access network connected to the terminal, and corresponds to the confirmed access network A server for checking a quality of a service that can be provided and for notifying the terminal of the quality of the service that can be provided; Include.

In addition, the present invention provides a service providing method of a terminal in a communication system, the process of requesting the service providing server to the service providing server using the quality information of the service to be provided, and the service using the quality information of the service; It includes the process of receiving from the service providing server.

In addition, the present invention provides a service providing method of a service providing server in a communication system, when receiving a service request corresponding to the quality information of a service from a terminal, transmitting a service quality information request message for providing the service to an interface server. And receiving a service quality information response message corresponding to the service quality information request message from the genital interface server, and providing a service corresponding to the quality information of the service to the terminal.

In addition, the present invention provides a service providing method of the interface server in the communication system, the process of receiving the quality information of the service to be provided by the terminal from the service providing server, and obtaining information corresponding to the quality of the service, And providing the obtained service quality information to the service providing server.

In addition, the present invention, the service providing method of the service providing server in the communication system, the process of receiving a service request from the terminal through the access network connected to the terminal, and confirming the access network connected to the terminal, And checking a quality of a service that can be provided corresponding to the checked access network, and notifying the terminal of the quality of the service that can be provided.

According to an embodiment of the present invention to be described later, when each terminal wants to receive a service from an Internet service / content providing server in a communication system, a desired quality of service (QoS) desired by the terminal is referred to as 'QoS'. We propose a method and system for receiving a service corresponding to a class.

Herein, an embodiment of the present invention describes that the terminal receives an Internet Protocol Television (IPTV) service from the Internet service / content providing server. In addition to the service, location information service, advertisement service, and user information service may be provided.

Next, a structure of a communication system according to an exemplary embodiment of the present invention will be described with reference to FIG. 3.

3 is a diagram illustrating a structure of a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the communication system includes an internet service / content providing server 310, an internet network 320, a communication network 330, the internet service / content providing server 310, and a communication network ( A receiver 340, which is serviced by 330, and an access network database 350 are included.

The Internet service / content providing server 310 is an application server providing various Internet services / contents, and an IPTV server 301 for providing IPTV services, and music / video streaming for providing music / video streaming services. Server (music / video streaming server) 302, a search server 303 for providing a search service, an advertising server 304 for providing an advertising service, and other content services. It includes other service server 305 to provide.

In addition, the communication network 330 includes a radio access station (RAS) 311 serving as a base station, and an access service network gateway (ASN GW :) in charge of a section of medium access control (MAC) of an access network. Access Service Network Gate Way, hereinafter referred to as 'ASN GW') 312, and a core service network (CSN: Core Service Network, hereinafter referred to as 'CSN') responsible for connection to the network layer (313). ), A universal service interface server (hereinafter referred to as a "USI server") 314, a location information server 315, and a device capability server ( 316, a user profile server 317, a QoS server 318, a billing server 319, and the like.

The receiver 340 includes, for example, a terminal, a personal computer (PC), a personal digital assistant (PDA), a portable multimedia player (PMP), and a camera. Hereinafter, for convenience of description, the receiver 340 will be described using a terminal as an example.

The internet service / content providing server 310 is connected to the internet network 320 to provide various contents services such as an IPTV service, a music / video streaming service, a search, an advertisement, and other services to a terminal, for example. .

That is, the Internet service / content providing server 310 is connected with the terminals 140 in correspondence to the IP address provided by the CSN 313 of the communication network 330 and services through the Internet network 320. It provides to the connected terminal.

The USI server 314 included in the communication network 330 includes the location information server 315, the device capability server 316, the user profile server 317, the QoS server 318, the charging server 319, and the like. It functions as an interface that connects. The USI server 314 may include the location information server 315, the terminal information server 316, the user profile server 317, the QoS server 318, the billing server 319, and the like. to be. In addition, the USI server 314 may be included in the ASN GW 312 in charge of the access network and the CSN 313 in charge of connection to the network layer.

The terminal 340 requests the IPTV service to the Internet service / content providing server 310. Upon receiving the IPTV service request, the Internet service / content providing server 310 checks an access network connected to the terminal 340 through an access network database 350. In more detail, the Internet service / content providing server 310 checks whether the access network connected to the terminal 340 is a network capable of supporting the USI server 314. As a result of the check, if the access network supports the USI server 314, that is, the Internet service / content providing server 310 can provide the requested IPTV service to the terminal 340 using the USI server 314. Then, the Internet service / content providing server 310 checks the QoS class of the IPTV service supported by the QoS server using the USI server 314.

Then, the Internet service / content providing server 310, the confirmed information. That is, the terminal 340 notifies QoS class information of the IPTV service that can be provided through the access network to which the terminal 340 is connected. In this case, if the Internet service / content providing server 310 cannot provide the requested IPTV service to the terminal 340 using the USI server 314, that is, the access network connected to the terminal 340 is connected to the USI server. If the connection network of 314 is not supported, the Internet service / content providing server 310 notifies that the IPTV service can be provided without the support of the QoS server, for example, the IPTV service can be provided with Class 1 QoS. Further, as described above, the Internet service / content providing server 310 may provide the IPTV service supported by the QoS server by using the USI server 214, for example, to provide the IPTV service with Class 2 QoS. Notify me. Here, when notifying that the IPTV service can be provided by the class 2 QoS, the Internet service / content providing server 310 may additionally notify that the IPTV service can be provided by the class 1 QoS.

The terminal 340 is the QoS class of the IPTV, for example, the Internet service / content providing server 310 by using the USI server 214, the IPTV with a QoS of Class 1, Class 2 corresponding to whether or not the QoS server supports When notifying that the service can be provided, one of the QoS classes is selected to receive the IPTV service.

Next, a process of providing a service by an internet service / content providing server to a terminal in a communication system according to an embodiment of the present invention will be described with reference to FIG. 4.

4 is a diagram illustrating a process of providing a service by an Internet service / content providing server to a terminal in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the communication system includes an Internet service / content providing server, for example, an IPTV server 410, an internet network 420 for accessing the IPTV server 410, a QoS server 450, and an IPTV. A USI server 430 connecting the server 410, a terminal 440, and an access network database 460 are included.

The terminal 440 requests the IPTV service to the IPTV server 410 in order to receive the IPTV service from the IPTV server 410. Upon receiving the IPTV service request, the IPTV server 410 checks whether the access network connected to the terminal 440 is supported by the USI server 430 through an access network database 460. More specifically, the IPTV server 410 compares the IP address of the access network connected to the terminal 440 with the IP address stored in the access network database 460 to which the terminal 440 is connected. Check whether the access network is a network capable of supporting the USI server 430. Then, the IPTV server 410 notifies the terminal 460 whether or not the terminal 460 supports the USI server 430 of the access network to which the terminal 460 accesses, that is, the USI server (410). 410 to provide IPTV service supported by the QoS server 450, that is, to provide IPTV service with QoS of class 2 or IPTV service without support of the QoS server 450, that is, IPTV service with class 1 QoS. Notify that it is possible to provide.

Then, the terminal 440 is provided with the IPTV service by selecting a certain QoS class desired by the user, for example, one QoS class desired by the user from among Class 1 to Class 2.

Herein, an interface of a terminal according to an exemplary embodiment of the present invention will be described with reference to FIG. 5.

FIG. 5 is a diagram for a terminal requesting QoS and connecting to an IPTV server in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the terminal is informed of the QoS class information of the IPTV service that can be provided through an access network to which the terminal is connected from the IPTV server.

Then, the terminal selects the QoS option to receive an IPTV service having a high resolution.

In addition, if the terminal does not check the QoS option, the terminal is provided with an IPTV service having a general resolution.

Next, a process in which a terminal receives an IPTV service from an IPTV server in a communication system according to an exemplary embodiment of the present invention will be described with reference to FIG. 6.

6 is a diagram illustrating a process in which a terminal receives an IPTV service from an IPTV server in a communication system according to an exemplary embodiment of the present invention.

Referring to Fig. 6, the communication system includes a terminal 691, a RAS 692, an ASN GW 693, a CSN 694, a USI server 695, a billing server 696, and QoS. Server 697 and IPTV server 698.

The terminal 691 transmits to the IPTV server 698 an IPTV service request message requesting to provide an IPTV service of a predetermined QoS class to receive an IPTV service through the IPTV server 698 (step 601). The IPTV service request message includes user IP information, port information, QoS request information, and the like.

Upon receiving the IPTV service request message, the IPTV server 698 includes a predetermined QoS class request information requested by the terminal 691, a service request including user IP information, server IP information, port information, and protocol information. request) message is transmitted to the USI server 695 in step 603. The service request message is a message transmitted to the USI server 695 to provide an IPTV service having a predetermined QoS class to the terminal 691.

Upon receipt of the service request message, the USI server 695 transmits to the QoS server 697 a QoS request message for requesting a predetermined QoS class corresponding to the service request message (step 605).

Upon receiving the QoS request message, the QoS server 697 checks whether a service corresponding to the QoS requested by the terminal 691 can be provided. If it is possible to provide a service corresponding to the requested QoS, the QoS server 697 sends a QoS response message including a parameter indicating that a predetermined QoS class requested by the terminal 691 is provided. 695) (step 607). Upon receiving the QoS response message, the USI server 695 transmits a QoS rule message including user IP information and port information, server IP information and port information to the CSN 694 (step 609).

The QoS rule message is a message requesting to set a rule for QoS requested by the terminal 691 when providing the IPTV service to the terminal 691. The rule means that the terminal 691 determines a desired period of time (eg, 1 day, 1 month, etc.), a desired amount of traffic (1 GB, 10 GB), a desired resolution, or the like for a predetermined QoS class. After receiving the QoS rule message, the CSN 694 completes the configuration corresponding to the QoS rule, and then transmits a QoS confirmation message to the USI server 695 to complete the configuration (step 611).

The USI server 695 also recognizes that the QoS rule determined by the CSN 694 should be set in an access network, and sends a QoS rule message including the QoS rule information to the ASN GW 693. Transmit (step 613). At this time, the ASN GW 693 sets up the QoS between the terminal 691 and the ASN GW 693 to a predetermined QoS class (step 615). When the setup process is completed, the ASN GW 693 transmits a QoS confirmation message to the USI server 695 indicating completion of the QoS rule setting (step 617).

Although not shown in the drawing, the CSN 694 may perform steps 613 and 617. In addition, the QoS server 697 may perform steps 609, 611, 613, and 617. In addition, the steps 609 and 611 may be performed by the QoS server 697, and the steps 613 and 617 may be performed by the CSN 694.

The USI server 695 transmits a service response message to the IPTV server 698 (step 619). The service response message includes the QoS rule and is a message for providing an IPTV service having a predetermined QoS class corresponding to the service request message.

Upon receiving the service response message, the IPTV server 698 transmits an IPTV service response message including QoS information, server IP information, port information, and protocol information to the terminal 691 (step 621). Accordingly, the terminal 691 receives an IPTV service having a predetermined QoS class from the IPTV server 698 (steps 623 and 625).

Meanwhile, the IPTV server 698 transmits a charging information request message to the USI server 695 in step 627. Upon receiving the charging information request message, the USI server 695 transmits to the charging server 696 a charging information update message for calculating a fee according to the provision of the IPTV service of a predetermined QoS class provided to the terminal 691. (Step 629).

After the charging server 696 receives the charging information update message, the charging server 696 updates the charging information according to the provision of the service of the predetermined QoS class to the charging server 696, and then charges the charging information to the USI server 695. The update confirmation message is transmitted (step 631).

That is, the USI server 695 performs steps 629 and 631 to respond to the IPTV server 698 with the result of the charging information request message, and responds to the charging information request message. A message is sent to the IPTV server 698 (step 633).

The charging information update process may update the charging information through operations of the USI server 695 without performing steps 627 and 633, that is, steps 629 and 631 may be performed.

In addition, the process of updating the above-mentioned billing information, that is, the steps 627 to 633 are shown as an example of updating the billing information, and may be performed before providing the IPTV service, that is, performing steps 623 and 625. have.

In addition, the service request message or the service response message performed in steps 603 and 619 may use Hyper Text Transfer Protocol (HTTP) for security.

Next, a process of requesting a change of a QoS class by a terminal receiving an IPTV service of a predetermined QoS class from the IPTV server in the communication system according to an embodiment of the present invention will be described with reference to FIG. 7.

7 is a diagram illustrating a process of requesting a terminal to change a QoS class in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 7, the communication system includes a terminal 791, a RAS 792, an ASN GW 793, a CSN 794, a USI server 795, a charging server 796, and a QoS. A server 797 and an IPTV server 798 are included.

The terminal 791 receives an IPTV service having a predetermined QoS class requested by the terminal 791 from the IPTV server 798 (steps 701 and 703). At this time, the terminal 791 requests an IPTV service of a new predetermined QoS class to receive an IPTV service of a new predetermined QoS class different from the IPTV service of a predetermined QoS class provided from the IPTV server. The request message is transmitted to the IPTV server 798 (step 705). The IPTV service request message includes user IP information, port information, new predetermined QoS class request information, and the like. Upon receiving the IPTV service request message, the IPTV server 798 transmits a service request message including the QoS request information newly requested by the terminal 791, the user IP information, the server IP information, the port information, and the protocol information to the USI server. 795). The service request message is a message sent to the USI server 795 to provide the terminal 791 an IPTV service having a new predetermined QoS class.

Upon receiving the service request message, the USI server 795 transmits to the QoS server 797 a QoS request message for requesting a new predetermined QoS class corresponding to the service request message (step 709). After receiving the QoS request message, the QoS server 797 checks whether it is possible to provide a service of a new predetermined QoS class requested by the terminal 791, and then, as a result of the checking, provision of a service having the new predetermined QoS class is performed. If possible, the QoS server 797 transmits a QoS response message to the USI server 795 including a parameter indicating that provision of a service having a new predetermined QoS class requested by the terminal 791 is possible (step 711). ). Upon receiving the QoS response message, the USI server 795 transmits a QoS rule message including user IP information and port information, server IP information, and port information to the CSN 794 (step 713). The QoS rule message is a message requesting to set a rule of a service having a new predetermined QoS class requested by the terminal 791 when providing the IPTV service to the terminal 791. The rule means a period (eg, 1 day, 1 month, etc.) or a desired amount of traffic (eg, 1 GB, 10 GB) for which the terminal 791 desires a predetermined QoS class. After receiving the QoS rule message, the CSN 794 completes the configuration according to the QoS rule, and then transmits a QoS confirmation message to the USI server 795 for the completion of the configuration (step 715).

The USI server 795 recognizes that the QoS rule determined in the CSN 794 should also be set in an access network, and transmits a QoS rule message including the QoS rule information to the ASN GW 793. (Step 717). At this time, the ASN GW 793 sets up a predetermined QoS class between the terminal 791 and the ASN GW 793 (step 719). When the setup process is completed, the ASN GW 793 transmits a QoS confirmation message to the USI server 795 indicating completion of setting the new QoS rule (step 721).

Although not shown in the drawing, the CSN 794 may perform steps 717 and 721. In addition, the QoS server 797 may perform steps 713, 715, 717, and 721. In addition, steps 713 and 715 may be performed by the QoS server 797, and steps 717 and 721 may be performed by the CSN 794.

The USI server 795 transmits a service response message to the IPTV server 798 (step 723). The service response message includes the new QoS rule and is a message for providing QoS information corresponding to the service request message to the IPTV server.

Upon receiving the service response message, the IPTV server 798 transmits an IPTV service response message including QoS information, server IP information, port information, and protocol information to the terminal 791 (step 725). Accordingly, a channel between the IPTV server 798 and the terminal 791 is generated, and the terminal 791 receives an IPTV service having a new predetermined QoS class from the IPTV server 798 (step 727). step).

Meanwhile, the IPTV server 798 transmits a charging information request message to the USI server 795 (step 731). Upon receiving the charging information request message, the USI server 795 sends a charging information update message to the charging server 796 for calculating a charge according to the provision of a new predetermined QoS class IPTV service provided to the terminal 791. Transmit (step 733).

After receiving the charging information update message, the charging server 796 updates the charging information to the charging server 796 and transmits the charging information update confirmation message to the USI server 795 (step 735). That is, the USI server 795 performs steps 733 and 735 to reply the result of the charging information request message to the IPTV server 798, and responds to the charging information request message. The message is transmitted to the IPTV server 798 (step 737). The charging information update process may update the charging information through operations of the USI server 795 without performing steps 731 and 737, that is, steps 733 and 735 may be performed.

In addition, the above-described process of updating the charging information, that is, the steps 731 to 737 is an example of updating the charging information, and may be performed before providing the IPTV service, that is, performing steps 727 and 729. have. In addition, the service request message or the service response message performed in steps 707 and 723 may use Hyper Text Transfer Protocol (HTTP) for security.

Next, a process of requesting a QoS change by an IPTV server in a communication system according to an exemplary embodiment of the present invention will be described with reference to FIG. 8.

8 is a diagram illustrating a process of requesting a QoS change by an IPTV server in a communication system according to an exemplary embodiment of the present invention.

Referring to Fig. 8, the communication system includes a terminal 891, a RAS 892, an ASN GW 893, a CSN 894, a USI server 895, a charging server 896, and QoS. A server 897 and an IPTV server 898 are included.

The terminal 891 receives IPTV service of a predetermined QoS class requested by the terminal 891 from the IPTV server 898 (steps 801 and 803). At this time, the IPTV server 898 newly requests QoS information, user IP information, and port information to change a predetermined QoS class applied to the IPTV service provided by the IPTV server 898 to the terminal 891. In operation 805, a service request message including server IP information, port information, and protocol information is transmitted to the USI server 895. The service request message is a message sent to the USI server 895 to provide a new predetermined QoS class IPTV service to the terminal 891.

In addition, since steps 807 to 821 are the same as steps 709 to 723 described with reference to FIG. 7, a detailed description thereof will be omitted. Then, the IPTV server 898 transmits an IPTV service notification message including new QoS information, server IP information, port information, and protocol information to the terminal 891 (step 823). Accordingly, a channel between the IPTV server 891 and the terminal 891 is generated, and the terminal 891 receives an IPTV service of a new predetermined QoS class from the IPTV server 898 (steps 825 and 827). ).

In addition, since steps 829 to 835 are the same as steps 731 to 737 described with reference to FIG. 7, a detailed description thereof will be omitted.

Next, a process of requesting a QoS change by the USI server in the communication system according to an embodiment of the present invention will be described with reference to FIG. 9.

9 is a diagram illustrating a process of requesting a QoS change by a USI server in a communication system according to an exemplary embodiment of the present invention. The reason why the USI server requests the QoS change may be that the QoS change is requested when a period in which the predetermined QoS class can be used expires or the allocated traffic transmission amount is exceeded.

Referring to Fig. 9, the communication system includes a terminal 991, a RAS 992, an ASN GW 993, a CSN 994, a USI server 995, a charging server 996, and a QoS. A server 997 and an IPTV server 998 are included.

The terminal 991 receives an IPTV service of a predetermined QoS class requested by the terminal 991 from the IPTV server 998 (steps 901 and 903). At this time, when the period in which the predetermined QoS class can be used as described above expires or exceeds the allocated traffic transmission amount, the CSN 994 provides the IPTV server 998 to the terminal 991. A QoS report message is sent to the USI server 995 indicating that the service can no longer be supported (step 905). The USI server 995 receiving the QoS report message can no longer support the service provided by the CSN 994 to the terminal 991 by the IPTV server 998. The charging information request message informing the request is transmitted to the charging server 996 (step 907). The billing server 996 checks billing information for an IPTV service of a predetermined QoS class provided by the IPTV server 998 to the terminal 991, calculates billing, and bills in response to the billing information. An information response message is sent to the USI server 995 (step 909).

Receiving the charging information response message, the USI server 995 transmits to the CSN 994 a QoS confirmation message confirming a predetermined QoS class provided by the terminal 991 from the IPTV server 998 ( Step 911).

The USI server 995 also transmits to the QoS server 997 a QoS request message requesting a new predetermined QoS class (step 913). Upon receiving the QoS request message, the QoS server 997 transmits a QoS response message corresponding to the QoS request message to the USI server 995 (step 915). If the QoS server 997 can no longer provide an IPTV service having a predetermined QoS class, the QoS response message (User QoS Retrieval) indicates that the predetermined QoS class that the terminal 991 first requested is made. It may be deleted and may include information about the general best effort service.

If the QoS server 997 can provide a service of a new predetermined QoS class, the QoS response message may include information to request a new predetermined QoS class. The USI server 995 includes a result corresponding to the QoS response message of the QoS server 997 and sends the QoS rule message including user IP information and port information, IP information and port information of the server to the CSN 994. (Step 917).

Next, since steps 919 to 941 are the same as steps 807 to 835 of FIG. 8, a detailed description thereof will be omitted.

Next, referring to FIG. 10, a process in which a terminal receiving an IPTV service of an IPTV server corresponding to QoS information in the communication system according to an embodiment of the present invention requests the service termination of the IPTV server will be described.

FIG. 10 illustrates a process in which a terminal receiving an IPTV service of an IPTV server corresponding to QoS information in the communication system according to an embodiment of the present invention requests the termination of the service of the IPTV server.

Referring to FIG. 10, the communication system includes a terminal 1091, a RAS 1092, an ASN GW 1093, a CSN 1094, a USI server 1095, a billing server 1096, and a QoS. A server 1097 and an IPTV server 1098 are included.

The terminal 1091 receives an IPTV service corresponding to the QoS information requested by the terminal 1091 from the IPTV server 1098 (steps 1001 and 1003). At this time, when the terminal receiving the IPTV service terminates the service of the IPTV server as described above, the terminal 1091 requests the IPTV server 1098 to terminate the IPTV service of the IPTV server 1098. The service termination request message is transmitted (step 1005). The IPTV service termination request message includes user IP information, port information, QoS information, and the like. The IPTV server 1098 receives the IPTV service termination request message from the terminal 1091, and transmits a service termination request message corresponding to the IPTV service termination request message to the USI server 1095. At this time, the IPTV server requests the IPTV service termination and QoS cancellation simultaneously by transmitting the service termination message (step 1007).

The USI server 1095 receives a service termination message from the IPTV server 1098, and transmits a QoS cancellation request message to the QoS server 1097 according to a QoS cancellation request (step 1009). The QoS server 1097 receiving the QoS cancellation request message transmits a QoS response message corresponding to the QoS cancellation request message to the USI server 1095 (step 1011).

Upon receiving the QoS response message, the USI server 1095 transmits a QoS cancellation request message to the CSN 1094 requesting QoS cancellation (step 1013). Upon receiving the QoS cancellation request message, the CSN 1094 deletes the QoS policy according to the QoS cancellation and transmits a QoS response message corresponding to the deletion of the QoS information to the service interface server 1095 (step 1015). The QoS response message includes charging information such as the QoS usage time or the amount of transmission traffic. Upon receiving the QoS response message, the USI server 1095 transmits the QoS cancellation request message to the ASN GW 1093 (step 1017). The ASN GW 1093 receiving the QoS cancellation request message executes QoS cancellation with the terminal 1091 (step 1019). When the QoS cancellation is completed, the ASN GW 1093 sends a QoS response message including the QoS cancellation result. Transmit to USI server 1095 (step 1021).

In this case, it is also possible that the CSN 1094 performs the steps 1013 and 1015. In addition, the QoS server 1097 may perform steps 1013, 1015, 1017, and 1021. In addition, the steps 1013 and 1015 may be performed by the QoS server 1097, and the steps 1017 and 1021 may be performed by the CSN 1094 instead.

The USI server 1095 transmits a service termination response message corresponding to the service termination request message to the IPTV server 1098 (step 1023). Upon receiving the service termination request message, the IPTV server 1098 transmits an IPTV service termination response message including the termination of the termination procedure to the terminal 1091 and terminates the service of the IPTV server 1098 (1025). step).

Next, the IPTV server 1098 having received the IPTV service termination response message transmits a billing update request message to the USI server 1095 (step 1027).

Upon receiving the charging information request message, the USI server 1095 transmits a charging information update message to the charging terminal 1096 to the terminal 1091 in order to calculate a charge according to the provision of the IPTV service of the providing QoS class. Step 1029).

After the accounting server 1096 receives the accounting information update message, the accounting server 1096 updates the accounting information according to the QoS information provided to the accounting server 1096, and then the accounting information update confirmation message to the USI server 1095. (Step 1031).

The USI server 1095 performs steps 1029 and 1031 to respond to the IPTV server 1098 with a result of the charging information request message, and sends a charging information response message corresponding to the charging information request message. And transmits to the IPTV server 1098 (step 1033).

The charging information update process may update the charging information through operations of the USI server 1095 without performing steps 1027 and 1033, that is, steps 1029 and 1031 may be performed.

In addition, the above-described process of updating the charging information, that is, the steps 1027 to 1033 illustrates an example of updating the charging information, and may be performed before the IPTV service is terminated, that is, before the step 1025.

Next, a process of terminating the IPTV service by the IPTV server which provided the IPTV service of a predetermined QoS class in the communication system according to the embodiment of the present invention will be described with reference to FIG. 11.

11 is a diagram illustrating a process in which an IPTV server terminates the IPTV service in a communication system according to an embodiment of the present invention.

Referring to FIG. 11, the communication system includes a terminal 1191, a RAS 1192, an ASN GW 1193, a CSN 1194, a USI server 1195, a charging server 1196, and a QoS. The server 1197 and the IPTV server 1198 are included.

The terminal 1191 is provided with a service corresponding to the QoS information requested by the terminal 1191 from the IPTV server 1198 (steps 1101 and 1103). At this time, in order to cancel the QoS class corresponding to the IPTV service provided by the IPTV server 1198 to the terminal 1191, the IPTV server 1148 transmits a service termination request message to the USI server 1119. At this time, the IPTV server 1198 requests termination of the IPTV service and termination of QoS simultaneously by transmitting the service termination request message (step 1105).

Next, since steps 1107 to 1131 are the same as steps 1009 to 1033 described with reference to FIG. 10, a detailed description thereof will be omitted.

Next, a process of requesting termination of an IPTV service corresponding to QoS information by a USI server in a communication system according to an embodiment of the present invention will be described with reference to FIG. 12. The reason why the USI server 1295 terminates the QoS of the IPTV service is that the USI server 1295 may terminate the QoS when the set QoS class expires or exceeds the allocated traffic transmission amount.

12 is a diagram illustrating a process in which a USI server requests termination of an IPTV service corresponding to QoS information in a communication system according to an embodiment of the present invention.

12, the communication system includes a terminal 1291, a RAS 1292, an ASN / GW 1293, a CSN 1294, a USI server 1295, a charging server 1296, QoS server 1297 and IPTV server 1298.

The terminal 1291 receives an IPTV service corresponding to the QoS information requested by the terminal 1291 from the IPTV server 1298 (steps 1201 and 1203). At this time, as described above, if the set period of the QoS class has expired or exceeds the allocated traffic transmission amount, the CSN 1294 corresponds to QoS information provided by the IPTV server 1298 to the terminal 1291. A QoS report message indicating that the IPTV service can no longer be supported is transmitted to the USI server 1295 (step 1205).

The USI server 1295 receiving the QoS report message can no longer support the service provided by the CSN 1294 by the IPTV server 1298 to the terminal 1291 to the charging server 1296. The charging information request message informing the request for the charging information which has been serviced is transmitted (step 1207). The charging server 1296 checks and calculates charging information for an IPTV service of a predetermined QoS class provided by the IPTV server 1298 to the terminal 1291, and responds to the charging information with a response message for the charging information. Send a message to the USI server 995 (step 1209).

Upon receiving the charging information response message, the USI server 1295 transmits a QoS confirmation message to the CSN 1294 in which the terminal 1291 confirms a predetermined QoS class provided from the IPTV server 1298 ( Step 1211).

Next, since steps 1213 to 1237 are the same as steps 1009 to 1033 of FIG. 10, a detailed description thereof will be omitted.

Next, a process for providing an IPTV service by an IPTV server in a communication system according to an exemplary embodiment of the present invention will be described with reference to FIG. 13.

13 is a diagram illustrating a process for providing an IPTV service to a terminal by an IPTV server in a communication system according to an exemplary embodiment of the present invention.

First, the terminal 1391 transmits an IPTV service request message requesting an IPTV service to the IPTV server 1393 (step 1301). Upon receiving the IPTV service request message, the IPTV server 1395 requests an access network database 1393 to access network database 1393 to confirm whether the access network connected to the terminal 1391 is a network capable of supporting the USI server. The message is transmitted (step 1303). The access network database 1393 that receives the access network confirmation request message compares the IP address of the access network to which the terminal 1391 accesses with the network IP address stored in the access network database 1393 itself. After checking whether the access network 1391 accesses is a network capable of supporting the USI server, the access network acknowledgment message including the confirmation result information is transmitted to the IPTV server 1395 (step 1305).

The IPTV server 1395 may include an IPTV service response message including information on a QoS class of the IPTV service that can be provided through an access network connected to the terminal 1391 in correspondence with the received access network acknowledgment message. 1391. (Step 1307).

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention has the advantage that the terminal can be provided with a high quality service corresponding to the request of the terminal by receiving a service by selecting a QoS class in the communication system. In addition, the Internet service / content providing server has an advantage that can be applied to a variety of charging schemes corresponding to the QoS information provision.

Claims (29)

A service providing system in a communication system, And a terminal for requesting the service provision to a service providing server using quality information of a service to be provided, and receiving a service using the quality information of the service from the service providing server. A service providing system in a communication system, When a service request corresponding to the quality of service information is requested from a terminal, a service quality information request message for providing the service is transmitted to an interface server, and the service quality information response message corresponding to the service quality information request message is transmitted to an interface server. And a service providing server for providing a service corresponding to the quality information of the service to the terminal. The method of claim 2, The service providing server, if providing a service corresponding to the quality information of the service to the terminal, the service providing system, characterized in that to provide a charge corresponding to the service provision. The method of claim 2, When the service providing server recognizes that the quality information of the service should be changed after providing the service, the service providing server further transmits a first message to the interface server indicating that the quality information of the service should be changed. Service provision system. The method of claim 2, When the service providing server recognizes that the service provision using the quality information of the service should be terminated, the service providing server further transmits a second message to the interface server requesting the deletion of the record of the quality information of the service. Service delivery system. The method of claim 5, The service providing server, after transmitting the second message, the service providing system, characterized in that for transmitting the third message requesting the storage of the charging related information corresponding to the service provision. A service providing system in a communication system, A service including an interface server that receives the quality information of the service to be provided by the terminal from the service providing server, obtains information corresponding to the quality of the service, and provides the obtained service quality information to the service providing server. Provide system. The method of claim 7, wherein The interface server, when providing the quality information of the service to the service providing server, the service providing system, characterized in that for transmitting the charging information corresponding to the service providing using the quality information of the service to the charging server. The method of claim 7, wherein When the interface server recognizes that the quality information of the service should be changed after providing the quality information of the service to the service providing server, the interface server checks whether the quality information of the provided service has expired or exceeded a transmission amount. Service providing system, characterized in that. The method of claim 9, The interface server, upon recognizing that the quality information of the provided service has expired or has exceeded the transmission amount, transmits to the service providing server that it cannot provide the quality information of the new service or can no longer provide the quality information of the service. Service providing system, characterized in that. A service providing method of a terminal in a communication system, Requesting to provide a service to a service providing server by using quality information of a service to be provided; The service providing method comprising the step of receiving a service using the service quality information from the service providing server. A service providing method of a service providing server in a communication system, If a service request corresponding to the service quality information is requested from the terminal, transmitting a service quality information request message for providing the service to an interface server; And receiving a service quality information response message corresponding to the service quality information request message from the interface server, and providing a service corresponding to the quality of service information to the terminal. The method of claim 12, The providing of the service to the terminal further includes granting a charge corresponding to providing a service corresponding to the quality information of the service. The method of claim 12, The providing of the service to the terminal may further include transmitting a first message to the interface server indicating that the quality information of the service needs to be changed when it is recognized that the quality information of the service should be changed. How we deliver the service. The method of claim 12, The process of providing the service to the terminal may further include transmitting a second message requesting deletion of the record of the quality information of the service when it is recognized that the service using the service quality information should be terminated. How we deliver the service. The method of claim 15, The transmitting of the second message may further include transmitting a third message requesting storage of charging related information corresponding to the provision of a service using the quality information of the service. In the communication system providing service of the interface server, Receiving, by a terminal, quality information of a service to be provided from a service providing server; Obtaining information corresponding to the quality of the service and providing the obtained quality information of the service to the service providing server. The method of claim 17, The providing of the quality information of the service may further include transmitting charging information corresponding to the service provision using the quality information of the service to a charging server. The method of claim 17, Providing the quality information of the service, if it is recognized that the quality information of the service is to be changed, the service providing method further comprises checking whether the quality information of the provided service has expired or exceeded the transmission amount. . The method of claim 19, In the process of providing the quality information of the service, if it is recognized that the quality information of the provided service has expired or the transmission volume is exceeded, the quality information of the new service may be provided or the quality information of the service may no longer be transmitted. Service providing method further comprising the process of. A service providing system in a communication system, A terminal requesting a service using quality information of a service to be provided; When a request for providing a service corresponding to the quality of service information is requested from the terminal, when a service quality information request message for providing the service is transmitted, and when the service quality information response message corresponding to the service quality information request message is received, A service providing server providing a service corresponding to the quality information of the service to the terminal; And an interface server that receives a service quality information request message from the service providing server, obtains information corresponding to the quality of the service, and provides the obtained service quality information to the service providing server. A service providing method of a service providing server in a communication system, Receiving a service request from a terminal through an access network to which the terminal is connected; Confirming the access network to which the terminal is connected, and checking the quality of the service that can be provided corresponding to the checked access network; And providing the terminal with the quality of the service which can be provided. The method of claim 22, The checking of the access network to which the terminal is connected may include checking whether the access network to which the terminal is connected is a network capable of supporting an interface. The method of claim 23, wherein The determining of whether the interface is a network capable of supporting the service may include checking an IP address of an access network to which the terminal is connected with an IP address of the network capable of supporting the interface. The method of claim 23, wherein The checking of the quality of the service that can be provided comprises: checking the quality of the service supported by the service quality server using the interface. A service providing system in a communication system, The terminal receives a service request from the terminal through an access network to which the terminal is connected, checks the access network to which the terminal is connected, checks the quality of service that can be provided corresponding to the checked access network, and the quality of the service that can be provided. Providing server for notifying the terminal, And a terminal receiving a service with a predetermined quality of service from the providing server in correspondence with the quality of the service that can be provided. The method of claim 26, The providing server, the service providing system, characterized in that for checking whether the access network connected to the terminal interface support network. The method of claim 27, The providing server, the service providing system, characterized in that to check the access network connected to the terminal by comparing the IP (IP) address of the access network connected to the terminal and the IP address of the network capable of supporting the interface. The method of claim 27, The service providing server, the service providing system, characterized in that for checking the quality of the service supported by the service quality server using the interface.

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