KR100792599B1 - Flow Profile Information Control System and Method for Dynamic Control of Upstream Traffic in IP Packet Networks - Google Patents

Abstract

The flow profile information control system for dynamic control of uplink traffic in an IP packet network according to the present invention includes a subscriber DB which stores identification information of each subscriber, configuration information including a service profile, and identifier information of a terminal control server for each subscriber; A subscriber profile management server extracting identifier information of a terminal control server managing a subscriber from a subscriber DB according to a network access request of a subscriber, a terminal control server corresponding to the identifier information, and a control interface are connected to each other. And an access network policy control server for providing flow control data and subscriber identification ID to the terminal control server through a control interface whenever there is a change, wherein the terminal control server comprises a subscriber provided from the access network policy control server via the control interface. Consciousness After using the ID search for the subscriber station, and the flow profile of the detected subscriber terminal characterized in that the change by the flow control data.

As described above, the present invention defines a control interface between an access network policy server control server and a terminal control server, and then controls upstream traffic by controlling a subscriber profile through the terminal control server. have.

Description

SYSTEM AND METHOD FOR CONTROLLING A FLOW PROFILE INFORMATION FOR A DYNAMIC CONTROL OF UPSTREAM OVER IP PACKET}

1 is a block diagram showing a network configuration for uplink traffic control of a multimedia IP communication service according to the present invention;

FIG. 2A illustrates the structure of a subscriber DB managed by the subscriber information management server in FIG. 1; FIG.

2b is a diagram illustrating a structure of a terminal DB managed by a terminal control server in FIG. 1;

3 is a flowchart illustrating a process of changing an IP communication service uplink traffic flow in real time according to an embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: subscriber station 102: network end equipment

104: concentrating equipment 106: network connection equipment

108: network 110: access network policy control server

112: terminal control server 110a, 112a: control interface

114: subscriber information management server 116: call setup server

118: subscriber DB 120: terminal DB

122: DNS server

The present invention relates to an apparatus and method for real time dynamic control of uplink traffic of a multimedia IP communication service in an IP packet network.

There is an increasing demand for multimedia IP communication services such as VoIP, MMoIP, VoD, and IPTV, which have the same quality as that of the IP packet network and the circuit network.

In order to guarantee the end-to-end interval of the high quality IP communication service, the traffic control of the access network interval having the highest aggregation rate of traffic is most necessary.

The method of controlling the traffic in the access section is basically the BRAS or edge router, which is a network access device, performs subscriber identification and traffic control for downstream traffic, and the upstream traffic starts for upstream traffic. Control the traffic at the terminal or network end equipment which is the location.

The technology to date guarantees the quality of service required by the policy application of the network access equipment and the QoS processing by the control of the policy control server of the control layer for the downlink traffic.

The uplink traffic is classified by the static configuration of the aggregation equipment, which is the equipment constituting the access network, due to the lack of functions of the terminal and the network end equipment, and performs the QoS control function.

However, the uplink traffic control method of the aggregation equipment by such a fixed configuration function is a partial control scheme in which traffic control for the section from the terminal / network termination equipment to the aggregation equipment in the access network section is impossible, and is performed in real time such as a multimedia IP communication service. It's a technology that doesn't allow real control of dynamic services.

Recently, technology for controlling service for upstream traffic in terminal / network end equipment has been developed, and static information is obtained by automatically setting information related to service profile from terminal control server at start-up of terminal / network end equipment. The service profile is in the stage of application and execution.

However, interfaces and procedures for performing real-time dynamic services such as multimedia IP communication services are not defined.

An object of the present invention is to solve the problems of the prior art, by defining a control interface between the access network policy server control server and the terminal control server, and then control the flow profile of the subscriber terminal through the terminal control server based on this, A flow profile information control system and method for dynamic control of uplink traffic in an IP packet network capable of dynamically controlling uplink traffic are provided.

In order to achieve the above object, the present invention provides a subscriber DB that stores identification information of each subscriber, configuration information including a service profile, and identifier information of a terminal control server for each subscriber, and the subscriber according to a network connection request of the subscriber. Connected to the subscriber information management server extracting the identifier information of the terminal control server from the subscriber DB, the terminal control server corresponding to the identifier information through a control interface, and whenever there is a flow profile change of the subscriber terminal. And an access network policy control server providing flow control data and a subscriber identification ID to the terminal control server through the control interface, wherein the terminal control server includes a subscriber network provided from the access network policy control server through the control interface. Identify the ID to this Will be in after searching for the subscriber station, characterized in that the change by the flow control data to the flow profile of the detected subscriber terminal.

In addition, the present invention, (a) at the subscriber information management server according to the subscriber's network connection request to provide the identifier information of the terminal control server that manages the subscriber to the access network policy control server to manage the subscriber, (b) Defining a control interface between the access network policy control server and a terminal control server corresponding to the identifier information when the subscriber station requests an IP communication service; and (c) subscriber identification ID and flow control through the defined control interface. Providing data to the terminal control server; (d) the terminal control server searches for the subscriber terminal based on the subscriber identification ID, changes the flow profile of the subscriber terminal using the flow control data, and then upwards. Controlling the traffic flow.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a network configuration for uplink traffic control of a multimedia IP communication service according to the present invention, wherein a plurality of subscriber stations 100, network end equipments 102, aggregation equipments 104, and network access equipments are illustrated. 106, network 108, access network policy control server 110, terminal control server 112, subscriber information management server 114, call setup server 116, subscriber DB 118, terminal DB 120 ) And DNS server 122.

The subscriber station 100 is a terminal for a service, a PC, a VoIP phone, a TV, and the like, and the network termination equipment 102 is a device that connects the subscriber premises with the network 108 and corresponds to equipment such as a modem or a home gateway.

The subscriber station 100 changes the internal flow profile based on the flow control content provided from the terminal control server 112.

The network end equipment 102 is connected to the network 108 through aggregation equipment 104 such as DSLAM and Switch, and is connected to the network 108 through the network connection equipment 106 which is responsible for routing. do.

The access network from the network end equipment 102 to the network access equipment 106 is managed by the access network policy control server 110, and the subscribers to the subscriber information management server 114 that manages the subscriber DB 118. By authentication, the subscriber information management server 114 manages subscriber service profile information.

The network end equipment 102 is entirely managed by the terminal control server 112 that manages the terminal DB 120. In particular, the network termination equipment 102 is based on the configuration information required by the terminal control server 112 according to the present invention. Change

In order to set up a call of the IP communication service, the call establishment server 116 interworks with the subscriber station 100 and performs a call admission control process together with the access network policy control server 110.

The subscriber information management server 114 manages the subscriber DB 118. As shown in FIG. 2A, the subscriber DB 118 includes subscriber setting information including service profile information of the subscriber for subscriber authentication and service authorization. A URL (identifier information) and a subscriber ID for identifying the terminal control server 112 managing the network end equipment 102 connecting the subscriber terminal 100 of the subscriber are stored.

The terminal control server 112 manages the terminal DB 120. As shown in FIG. 2B, the terminal DB 120 includes terminal-related setting information, a subscriber ID, and the like, using the ID of the subscriber terminal 100 as an identifier. It is stored.

 The terminal control server 112 may search for the subscriber terminal 100 and the network end equipment 102 of the subscriber based on the subscriber identification ID provided from the access network policy control server 110, and retrieved the subscriber terminal 100. The flow control data is provided to the subscribed terminal 100 to change the flow profile of the subscriber terminal 100 or the configuration information is transmitted to the network termination apparatus 102 for upstream traffic flow control of the network termination apparatus 102. Change the setting information in). Here, the subscriber identification ID may be the IP of the subscriber station 100 or the ID of the subscriber.

In the present invention, the control network 110a, 112a for communication between the access network policy control server 110 and the terminal control server 112 is provided, through which the access network policy control server 110 is a terminal control server 112 Control the flow of upstream traffic.

Examples of the control interface (110a, 112a) is a diameter (diameter) method or a shop (SOAP) method.

A network configuration having the above configuration will be described with reference to FIG. 3 for a control process for uplink traffic in a call acceptance process of a multimedia IP communication service.

Referring to FIG. 3, when a subscriber attempts to access a network using his subscriber station 100, the subscriber information management server 118 authenticates the subscriber (S200). That is, the subscriber information management server 118 uses the subscriber DB 118 to authenticate the subscriber who wants to access the network through a predetermined authentication procedure, for example, a subscriber ID input.

When the subscriber is authenticated in step S200, the subscriber information management server 118 manages whether the subscriber is connected to the network and the terminal control server 112 that manages the subscriber terminal 100 and the network end equipment 102 connecting the subscriber terminal 100. The identifier information of the subscriber is retrieved from the subscriber DB 118 and then provided to the access network policy control server 110 (S202).

The access network policy control server 110 obtains an IP address of the terminal control server 112 by querying the DNS server 122 using the identifier information of the terminal control server 112 (S204).

Subsequently, when the subscriber attempts an IP communication service to his subscriber station 100 and requests call setup from the call setup server 116 (S208), the call setup server 116 accesses, that is, the network termination equipment 102. ) To query the availability of network resources to the access network policy control server 110 to investigate the availability of the access interval from the network access equipment 106 (S210).

The access network policy control server 110 checks the availability by using the resource information to be managed (S212), by allocating resources to the network access device 106 and controlling the flow of downlink traffic, and then transmitting a control policy. Allocating the downlink traffic resources to the network access equipment 106 (S214), and transmits the flow control data and the configuration information of the network termination equipment 102 to the terminal control server 112 to the terminal control server 112 for flow control of the upstream traffic. (S216). In this case, communication between the access network policy control server 110 and the terminal control server 112 is performed through the control interfaces 110a and 112a.

Accordingly, the terminal control server 112 searches for the subscriber station 100 corresponding to the subscriber identification ID and the network terminal equipment 102 connected to the subscriber station 100, and transmits the flow control data to the retrieved subscriber station 100. In addition to requesting the flow profile change to provide the configuration information to the network end equipment 102 to request the change of the configuration information (S218),

Accordingly, the subscriber terminal 100 changes the flow profile based on the flow control data, and the network end equipment 102 changes the internal setting information based on the setting information and then responds to the terminal control server 112 (S220, S222).

The terminal control server 112 receives a response from the subscriber station 100 and the network end equipment 102, and then performs a processing completion report (uplink traffic resource allocation completion report) to the access network policy control server 110 (S224). In step S226, the access network policy control server 110 responds to the call availability server 116 with a resource availability query.

Thereafter, the subscriber station 100 controls the uplink traffic flow using the changed flow profile, and receives the IP communication service by controlling the downlink traffic flow based on the resource allocation and control policy set in the network access device 106 ( S228).

According to the present invention, by changing the flow profile of the subscriber station 100 for the uplink traffic flow control and by providing a resource allocation and control policy for the downlink traffic flow control to the network access equipment 106, Flow resource allocation and QoS policy control for downlink and upstream traffic are possible, and the quality of multimedia IP communication service can be guaranteed.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention can define the control interface between the access network policy server control server and the terminal control server, and then control the flow profile of the subscriber station through the terminal control server based on this, thereby dynamically controlling the upstream traffic. .

In addition, the present invention provides a new form through providing differentiated services by providing dynamic control of uplink traffic, which is a network control based technology that can provide multimedia IP communication services such as VoIP, MMoIP, VoD and the like in the IP packet network. Can generate a variety of business models and profits.

Claims (13)

A subscriber DB storing identification information of each subscriber, configuration information including a service profile, and identifier information of a terminal control server for each subscriber; A subscriber information management server extracting identifier information of a terminal control server managing the subscriber from the subscriber DB according to a subscriber's network connection request; An access network connected to a terminal control server corresponding to the identifier information through a control interface and providing a flow control data and a subscriber identification ID to the terminal control server through the control interface whenever a flow profile of the subscriber terminal changes. Includes a policy control server, The terminal control server, After searching the subscriber station using the identification ID of the subscriber provided from the access network policy control server through the control interface, changing the flow profile of the found subscriber station using the flow control data; Flow profile information control system for dynamic control of upstream traffic in a packet network. The method of claim 1, The control interface is a flow profile information control system for dynamic control of uplink traffic in an IP packet network, characterized in that the diameter (diameter) or shop (SOAP) method. The method of claim 1, The identifier information is a flow profile information control system for dynamic control of upstream traffic in an IP packet network, characterized in that the URL of the terminal control server. The method of claim 3, wherein The access network policy control server is a flow profile information control system for dynamic control of upstream traffic in the IP packet network, characterized in that to query the DNS server using the URL to receive the IP address of the terminal control server. The method of claim 1, The subscriber identification ID is an IP address of the subscriber station or the subscriber ID. The flow profile information control system for dynamic control of uplink traffic in an IP packet network. The method of claim 1, The access network policy control server provides the terminal control server with setting information for changing the setting of the network end equipment connected with the subscriber station. The terminal control server changes the flow profile of the subscriber station and changes the configuration of the network end equipment by using the provided configuration information. The flow profile for dynamic control of upstream traffic in an IP packet network Information control system. (a) providing, by the subscriber information management server, the identifier information of the terminal control server managing the subscriber when the subscriber is authenticated to the access network policy control server according to the subscriber's network access request; (b) defining a control interface between the access network policy control server and a terminal control server corresponding to the identifier information when the subscriber station requests an IP communication service; (c) providing subscriber identification ID and flow control data to the terminal control server through the defined control interface; (d) searching for the subscriber station based on the subscriber identification ID in the terminal control server, and controlling the uplink traffic flow by changing the flow profile of the subscriber station using the flow control data; Flow profile information control method for dynamic control of upstream traffic in an IP packet network comprising a. The method of claim 7, wherein The control interface is a flow profile information control method for dynamic control of uplink traffic in an IP packet network, characterized in that the diameter (diameter) or shop (SOAP) method. The method of claim 7, wherein The identifier information is a flow profile information control method for dynamic control of uplink traffic in an IP packet network, characterized in that the URL of the terminal control server. The method of claim 9, The access network policy control server is a flow profile information control method for dynamic control of upstream traffic in the IP packet network, characterized in that to query the DNS server using the URL to receive the IP address of the terminal control server. The method of claim 7, wherein The subscriber identification ID is the IP address of the subscriber station or the subscriber ID, characterized in that the flow profile information control method for dynamic control of uplink traffic in the IP packet network. The method of claim 7, wherein The uplink traffic control method, Providing, by the access network policy control server, the terminal control server with setting information for changing the setting of the network end equipment connected with the subscriber station; In the uplink traffic control step A method of controlling flow profile information for dynamic control of upstream traffic in an IP packet network, characterized in that the flow profile of the subscriber station is changed and the configuration of the network end equipment is changed using the provided configuration information. The method of claim 7, wherein The uplink traffic control method, The method of controlling flow profile information for dynamic control of upstream traffic in an IP packet network, characterized in that steps (c) and (d) are performed whenever there is a change in the flow profile.

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