KR100668668B1 - Apparatus and method for managing information of service flow of portable internet system - Google Patents

Abstract

An apparatus and a method for managing service flow information in a portable Internet system are provided to manage each service by service flow and efficiently perform service processing for handover of a terminal, thereby providing a service of higher-quality to a user. An apparatus(131) for managing a service flow in a portable Internet system comprises the followings: a service flow generator(131a) which generates a service flow corresponding to the kind of a service and a service flow identifier corresponding to the service flow; an information storage(131c) for storing the generated service flow information; and a service flow manager(131b) for managing the service flow information which is separately stored in the information storage(131c) according to a service location of a user.

Description

Apparatus and method for managing service flow information in portable Internet system {APPARATUS AND METHOD FOR MANAGING INFORMATION OF SERVICE FLOW OF PORTABLE INTERNET SYSTEM}

1 is a diagram illustrating a portable Internet system based on IEEE 802.16e to which the present invention is applied.

2 is a diagram illustrating an apparatus for managing service flow information of a portable Internet system according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a service flow identifier.

4 is a diagram illustrating a process of generating a service flow in an apparatus for managing service flow information of a portable Internet system according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a process of deleting a service flow in the apparatus for managing service flow information of the portable Internet system according to an embodiment of the present invention.

The present invention relates to an apparatus and method for managing service flow information in a portable Internet system.

The IEEE 802.16e-based portable Internet system uses various types of IP-based wireless data services (e.g., streaming video, FTP, and mail) provided by the wired Internet by using a wireless transmission technology that guarantees spectrum use efficiency in the 2.3 GHz frequency band. 3.5G is a mobile communication system that provides video and high-speed packet data transmission.

The portable Internet system is based on a cell-based mobile communication structure, and thus, a mobile system-specific technology called handover is supported. In addition, multiple data connection settings can be made for each user, and these connection settings have the characteristics of supporting various service classes. In the IEEE 802.16e-based portable Internet system, unlike the existing wireless Internet system, a plurality of service flows are defined according to service types. That is, the flow is generated according to the service required by the user, and the generated flow is maintained and managed. Therefore, a mechanism for managing each service for each service flow is needed.

On the other hand, as related information which can be compared with the service flow in the portable Internet system, there is flow information of the conventional IPv6 system and FA session information of the MIP (Mobile IP) system. Flow information used in the IPv6 system can be marked on a packet or datagram by reserving a specific field in the IPv6 header, and checking the flow label when the packet is received to determine which flow the packet belongs to, or to request a packet related to quality of service. You have the possibility to figure out In addition, the FA session information used in the MIP system may be used as a separator between the FA and the AAA as a unique identifier for distinguishing a service and a call. The FA session information used in the MIP system is similar to the flow information of the portable Internet system, but because it is not the only identifier in the system, it cannot be used as an identifier for identifying the terminal in a situation such as handover of the terminal.

An object of the present invention is to provide an apparatus and method for managing each service flow information for various services in a portable Internet system. In addition, it is to provide a flexible service to the user by performing the role of the unique identifier for the service flow during handover.

According to one aspect of the present invention, an apparatus for managing service flow information in a portable internet system is provided. The apparatus includes a service flow generating unit for generating a service flow according to a service type and a corresponding service flow identifier; An information storage unit for storing the generated service flow information; And a service flow manager configured to manage the service flow information stored separately according to the service location of the user.

According to another aspect of the present invention, a method for managing service flow information in a packet access router of a portable Internet system is provided. The method comprises the steps of: a) generating a corresponding service flow and a corresponding service flow identifier upon adding a service from a user; b) storing the generated service flow information in a home network database; c) storing service flow information of a user handing over to the packet access router in a visited network database; And d) managing the stored service flow information using a corresponding service flow identifier as a key.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification. In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

An apparatus and method for managing service flow information in a portable Internet system according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

First, the portable Internet system to which the present invention is applied will be described in detail with reference to FIG. 1.

1 is a diagram illustrating a portable Internet system based on IEEE 802.16e to which the present invention is applied.

As shown in FIG. 1, the IEEE 802.16e-based portable Internet system according to an embodiment of the present invention includes a terminal 110 (Access Terminal, hereinafter referred to as AT) 110, and an access point (AP) hereinafter referred to as “AP”. 120, a packet access router (hereinafter referred to as a 'PAR') 130a and 130b, and an AAA (Authentication, Authorization and Accounting) server 140.

AT (110a, 110b, 110c) is a mobile terminal that is used by the subscriber to receive a mobile Internet service and has a radio according to the wireless access standard in the 2.3GHz band frequency to access and transmit high-speed packet data to the AP 120 Performs channel transmission and reception.

AP 120 is a device for connecting a wireless network and a wired network, and provides a wireless packet data service directly to the ATAT (110a, 110b, 110c) through a wireless interface at the wired network end. That is, wireless signals are received from ATATs 110a, 110b, and 110c and transmitted to PARs 130a and 130b, or conversely, various types of information received from PARs 130a and 130b are converted to wireless signals and converted to ATATs 110a, 110b and 110c. ) Function.

The PARs 130a and 130b are connected to a plurality of APs 120 through IP-based wires to control the ATATs 110a, 110b and 110c and the APs 120 and to route IP packets. In this case, communication is performed between the AP 120 and the PARs 130a and 130b using a protocol standardized in IEEE 802.16, and a service flow in the PARs 130a and 130b when a user who is subscribed to the portable Internet network starts a service. And provide this service flow information to the AP 120 to provide the service to the user.

The AAA server 140 is a network component that authenticates, authenticates and charges the user and the ATATs 110a, 110b, and 110c in order to access and provide services to the portable Internet network for legitimate users. The AAA server 140 uses a diameter protocol that is being standardized by the Internet Engineer Task Force (IETF), an international standards organization. This diameter protocol enables authentication, authority verification and billing information transmission by interworking between servers.

The portable Internet system 100 is interoperable with another Internet network 200 or a cellular network or a wireless LAN network including the AT 210, the AP 220, and the AAA server 240 through the Internet 300. One or more PARs 130a and 130b may be configured in the same network. In addition, one or more APs 120 may be configured under one PAR 130a or 130b, and a plurality of ATATs 110a, 110b and 110c may be connected to one AP 120 to receive a service. . In addition, even when the ATATs 110a, 110b, and 110c move from a cell governed by the AP 120 to a new cell, a service provided by an existing cell may be provided. In the following, the PAR 130 to which the terminal 110a belongs is defined as a home network, and the remaining PAR 130b areas other than the PAR 130a are defined as other networks.

2 is a diagram illustrating an apparatus for managing service flow information of a portable Internet system according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the service flow information management apparatus 131 in the portable Internet system is included in the PARs 130a and 130b, respectively, and the service flow information management apparatus 131 includes a service flow generation unit 131a, The service flow management unit 131b and the information storage unit 131c are included. Hereinafter, the description will be given from the viewpoint of the home network, that is, the service flow information management apparatus 131 in the PAR 130a.

The service flow generation unit 131a generates a service flow identifier for identifying a corresponding service flow and a corresponding service flow when a new service for a user is added. The generated service flow identifier may be used as a unique identifier in the portable internet network.

The service flow management unit 131b operates based on the subscriber profile in the PAR 130a and manages service flow information using the service flow identifier as a key. At this time, the service flow management unit 131b manages the service flow information of the AT 110a located in the home network and the service flow information of the AT moved from another network. That is, since the service flow of the AT located in the home network is generated in the PAR 130a, the corresponding service flow identifier is stored in the home network DB, and the service flow of the AT moved from another network is already generated in the PAR 130b. The identifier is stored and managed in the visited network DB. If the AT moved from the other network leaves the PAR 130a, the corresponding service flow identifier is deleted from the visited network DB.

Meanwhile, the subscriber profile includes IP address information indicating a user's Internet address, a message authentication code (MAC) address, which is a subscriber's hardware identification address, a number of service flows serviced, a current subscriber's service state, and a user's service. It may include the number of service classes, the service class name, the type of address serviced to the subscriber, and the cell ID of the service.

The information storage unit 131c includes a home network DB and a visited network DB. The home network DB stores service flow information of the AT located in the home network, and the visited network DB stores the service flow information of the AT moved from another network. That is, the home network DB includes the identifier information of the service flow generated in the PAR 130a area, the location information about the service flow, and the status information, and the visited network DB includes the service flow identifier of the AT handed over from another network and Location information about the service flow may be included. At this time, it is possible to know whether each service flow is located in the home network or another network for each service flow from the location information, and the user service flow of the AT handed over from the PAR 130a to another PAR 130b can be tracked from the state information. .

3 is a diagram illustrating a service flow identifier.

As shown in FIG. 3, the service flow identifier includes a PAR ID (16 bits) and a serial number (16 bits) to which the user's terminal belongs. This is a unique identifier within the same portable internet system 100. In this case, the PAR ID is an identifier for identifying the PAR, and the serial number is a serial number generated by the PAR and is a unique number within a single PAR area.

4 is a diagram illustrating a process of generating a service flow in an apparatus for managing service flow information of a portable Internet system according to an exemplary embodiment of the present invention.

As shown in Fig. 4, a service flow is generated whenever a new service for a user is added. Specifically, in order to provide a service to the user after the initial access to the user is successfully made, the AP 120 transmits the service to the service flow manager 131b in the PAR 130a through a service acceptance request message. Request to accept the service for (S410). The service flow management unit 131b that receives the service acceptance request message (Admission Request) recognizes that the service is a new service to the user and the corresponding service flow to the service flow generator 131a through the service flow request message (Service flow Request). Request generation (S420). The service flow generating unit 131a, which has received the service flow request message (Service flow Request), generates a service flow (S430) and uses the service flow information generated through the service flow generation response message (Service flow Responset). Transfer to the management unit (131b) (S440). The service flow management unit 131b which has received this transmits the service flow information to the AP 120 through a service acceptance response message (S4450) to provide a service to the user. Thereafter, the service flow management unit 131b stores this service flow information in the home network DB of the information storage unit 131c. On the other hand, the AT (eg, 110c) handed over from the PAR 130b to the PAR 130a has a service flow already generated in the PAR 130b, so the service flow identifier and the service that the AT 110c has. Store location information on flows in a visited network DB.

As such, the service flow information stored in the information storage unit 131c receives a service acceptance request from the AP 120 when the ATs 110a, 110b, and 110c request a service. Then, the service flow manager 131b retrieves the corresponding service flow information using the service flow identifier and transmits the service flow information to the AP 120 to provide the corresponding service to the user.

5 is a diagram illustrating a process of deleting a service flow in the apparatus for managing service flow information of the portable Internet system according to an embodiment of the present invention.

As shown in FIG. 5, for the AT 110a handed over from the home network to the other network, the service flow management unit 131b in the PAR 130a transmits the AT through the service flow release request message AFDReq from the AP 120. Request to release the service flow of 110a (S510). Upon receiving the service flow release request message AFDReq, the service flow management unit 131b deletes the corresponding service flow information from the information storage unit 213c (S520). Thereafter, the service flow release response message AFDRes is transmitted to the AP 120 (S530).

On the other hand, the service flow management unit 131b in the PAR 130a receives the service flow release request request message AFDReq of the AT 110a moved to another network from the service flow management unit 131b in the PAR 130b.

The embodiments of the present invention described above are not implemented only through an apparatus and a method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. From the description of the above-described embodiment can be easily implemented by those skilled in the art.

The above embodiments are intended to illustrate the present invention, the scope of the present invention is not limited to the embodiments, it can be modified or modified by those skilled in the art within the scope of the invention defined by the appended claims.

According to the above configuration, it is possible to create a unique number of services for each user in the portable Internet system, and to expect an effect of applying a differentiated policy for each service. This enables each service to be managed for each service flow, and can efficiently perform service processing for handover of a terminal, thereby providing a higher quality service to a user.

Claims (7)

An apparatus for managing service flow information in a portable internet system, A service flow generation unit generating a service flow according to a service type and a corresponding service flow identifier; An information storage unit for storing the generated service flow information; And Service flow management unit for managing the service flow information stored separately in the information storage unit according to the service location of the user Service flow management apparatus in a portable internet system comprising a. The method of claim 1, And said service flow identifier is an ID of a packet access router and a serial number generated by said packet access router. The method of claim 2, The information storage unit, A home network database for storing service flow information generated by the packet access router; And Visiting network database for temporarily storing the service flow information of the user handed over to the packet access router Service flow management apparatus in a portable internet system comprising a. The method of claim 3, And the service flow management unit deletes the service flow information stored in the visited network database when the handed over user leaves the service area of the packet access router. In the method of managing the service flow information in the packet connection router of the portable Internet system, a) generating a corresponding service flow and a corresponding service flow identifier when adding a service from a user; b) storing the generated service flow information in a home network database; c) storing service flow information of a user handing over to the packet access router in a visited network database; And d) managing the stored service flow information using a corresponding service flow identifier as a key; Service flow management method in a mobile Internet system comprising a. The method of claim 5, And the service flow identifier includes an ID of the packet access router and a serial number generated by the packet access router. The method according to claim 6 or 7, In step d), Receiving a request to release the service flow from a user; And Deleting corresponding service flow information from the home network database or the visited network database based on the state information of the service flow; Service flow management method in a mobile Internet system comprising a.

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