KR100561616B1 - Subscriber Information Management Method in Mobile Internet System - Google Patents

Abstract

The present invention relates to a subscriber information management method of a portable internet system. According to this subscriber information management method, when a service connection is attempted from a subscriber in a portable Internet system including an access point (AP), a packet access router (PAR), and an authentication authorization accounting (AAA) server, a subscriber is connected between the AAA server and the PAR. After authentication is performed, subscriber information including a subscriber profile item and a service flow item corresponding to the subscriber is defined and generated in the PAR. The subscriber information is managed to provide the subscriber with a service according to the subscriber information generated in the PAR. According to the present invention, since each service can be managed for each service flow in the portable Internet system, a plurality of services can be generated for each user, and different policies for each service can be applied.

Mobile Internet, Subscriber Profile, Service Flow, Packet Access Routers, AAA

Description

 How to manage subscriber information in portable Internet system {METHOD FOR MANAGING USER INFORMATION ITEMS IN HIGH-SPEED PORTABLE INTERNET SYSTEM}

1 is a view showing the configuration of a portable Internet network according to an embodiment of the present invention.

2 is a diagram illustrating subscriber information items of a portable Internet system according to an embodiment of the present invention.

3 is an operation flowchart illustrating a subscriber profile generation procedure according to an embodiment of the present invention.

4 is an operation flowchart illustrating a procedure for searching and changing a subscriber profile and service flow according to an embodiment of the present invention.

5 is an operation flowchart illustrating a service flow deletion procedure according to an embodiment of the present invention.

6 is a flowchart illustrating an operation of deleting a subscriber profile according to an embodiment of the present invention.

The present invention relates to a method of managing subscriber information in a portable Internet system. More particularly, the present invention relates to a subscriber profile item managed in a packet access router (PAR) of a high-speed personal internet (HPI). The present invention relates to a subscriber information management method of a portable Internet system that defines and records and manages such subscriber profile items and service flow information in a PAR.

As a related art, Korean Patent Application No. 1997-19111 (filed May 17, 1997) discloses a "method for changing a database of an HLR system for digital wireless mobile communication." By preserving all subscriber information, electronic serial number, international mobile station identification, user profile, flow location, etc. of the wireless communication system, it can be used to modify or modify the database of the Home Location Register (HLR) system used to manage mobile subscribers. A method for changing a database of an HLR system for digital wireless mobile communication is disclosed. The unique feature of this technology is that it can perform all the desired tasks simultaneously in a single operation in an integrated environment, making it easier and more convenient for operators to change, modify and delete databases. For example, even general operators who do not know the contents of the database can easily and simply perform tasks.

On the other hand, it can be said that the portable Internet system takes advantage of the mobile communication system and the wireless LAN system and complements the disadvantages. The WLAN system provides a high speed transmission speed but does not support service coverage and mobility. The mobile communication system supports a wide service coverage and mobility but has a disadvantage that the transmission speed is low. The portable Internet system provides a high transmission speed and supports the wide coverage and mobility of the mobile communication system.

The subscriber information of the portable Internet system is a compromise between the advantages of the existing system, and the subscriber information suitable for the portable Internet system is not defined yet.

An object of the present invention for solving the above problems is to establish a plurality of data for each user connection, using the characteristics of the mobile Internet system that can support a variety of service classes for each connection setting, the profile for the subscriber using a variety of services And it is to provide a subscriber information management method of the portable Internet system that can define the service flow and manage the service smoothly.

Subscriber information management method according to an aspect of the present invention for achieving the above object,

A method of managing subscriber information in a portable Internet system including an access point (AP), a packet access router (PAR), and an authentication authorization accounting (AAA) server,

a) when the service connection is attempted from the subscriber, performing the subscriber authentication between the AAA server and the PAR; b) when authentication for the subscriber is completed, defining and generating subscriber information in the PAR including subscriber profile items and service flow items corresponding to the subscriber; And c) after the subscriber conquests are generated in the PAR, the connection settings are made for each specified service flow, and the service flow items are generated to manage the subscriber information to provide a service according to the subscriber information to the subscriber. It includes.

In addition, the AAA server and the PAR is characterized in that for performing communication using a (diameter) protocol.

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In addition, the subscriber profile item includes a context ID, which is a unique identifier between the AP and the PAR, IP address information indicating an Internet address of the user, a message authentication code (MAC) address, which is a hardware recognition address of the subscriber, and a service. The number of flows to be received, the current service status of the subscriber, the number of service classes provided to the user, the service class name, the type of address serviced to the subscriber, and the cell ID of the place where the subscriber is being served.

In addition, the service flow item is used when a plurality of services are provided for one subscriber, a context ID that is a unique identifier between the AP and the PAR, a flow ID that uniquely distinguishes a service flow, a name of a service class, and QoS. Form, maximum sustained traffic rate, maximum traffic burst, minimum reserved traffic rate, flow schedule type, and allowed jitter.

In addition, the step a), the AAA server performing the subscriber authentication at the request of the PAR; The PAR delivering session information and connection information to the AAA server; Sending, by the PAR, a message for certificate exchange to the AAA server; The AAA sending a message to the PAR informing that the use of a new encryption algorithm and a handshaking procedure have been completed; Sending, by the AAA, the subscriber profile related information to the PAR after authentication of the subscriber is completed; And generating and storing, by the PAR, a profile for the subscriber using the subscriber profile related information transmitted from the AAA server.

In addition, the subscriber profile is preferably generated when the authentication for the subscriber is completed.

In addition, step c) may include: searching for and changing the subscriber profile and service flow after authentication of the subscriber; Deleting a requested service flow when there is a service flow release request from the subscriber; And if there is a deregistration request from the subscriber, deleting the required subscriber profile.

In addition, the searching and changing of the subscriber profile may include: transmitting, by the AP, registration information of the subscriber to a PAR after authentication of the subscriber is completed; The PAR performing a search for the subscriber profile; Determining whether to accept the subscriber's registration and transmitting the result to the AP; And performing a change to the retrieved subscriber profile.

In addition, the service flow search and change step, i) the AP transmits a new traffic connection establishment request to the PAR; ii) the PAR performing a service flow search capable of providing the requested traffic and transmitting the result to the AP; iii) the AP informing the PAR whether to establish the traffic connection according to the search result; And iv) the PAR changing the retrieved service flow.

In addition, step ii) is preferably performed by the call admission control mechanism to determine whether to accept the request.

In addition, step iii) is preferably performed to negotiate information including a QoS value or a service level that can be provided for new traffic requested by the AP.

In addition, the search and change for the service flow is preferably generated by the number of services provided by the subscriber.

In addition, the deleting of the service flow may include transmitting a previously released traffic release request to the PAR to release the service flow for the subscriber who was receiving the service; The PAR receiving the traffic release request deletes the requested traffic; And transmitting an acknowledgment for the traffic release request to the AP.

In addition, the deleting of the subscriber profile may include: transmitting a deregistration request of a subscriber who is receiving a service to the PAR; The PAR receiving the deregistration request deletes the profile for the subscriber; And transmitting an acknowledgment for the deregistration request to the AP.

In addition, the deletion of the subscriber profile is preferably deleted together with service flow information related to the subscriber profile.

DETAILED DESCRIPTION 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. Like parts are designated by like reference numerals throughout the specification.

Hereinafter, a subscriber information management method of a portable internet system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Existing systems that can be compared with the portable Internet system include a mobile communication system and a wireless LAN system. In the mobile communication system, subscriber information is managed by a VLR (Visitor Location Register) and a wireless LAN system. Generally it was subscriber profile information.

However, the portable Internet system manages not only profile information but also service flow information in order to provide a service according to a service quality. Here, the subscriber profile is obtained from the profile information existing in the AAA as in the WLAN system, and the flow information is defined and used separately in the PAR.

As described above, the subscriber information in the portable Internet system can be divided into a subscriber profile and a service flow, and the portable internet system can define and smoothly manage the subscriber profile and service flow information. Unlike a communication environment, an access network system includes an access point and a packet access router.

Therefore, the present invention defines a subscriber profile item managed in the PAR system of the portable Internet system, and describes a method of recording and managing such subscriber profile item and service flow information in the PAR, wherein the PAR subscriber profile information is generated for each subscriber The service flow is generated and managed according to the service required for each subscriber, and the service is provided to the subscriber by using a mechanism using a shared memory technique to transmit, modify, and change data in real time by an application block.

1 is a view showing the structure of a portable Internet network according to an embodiment of the present invention.

As shown in FIG. 1, the portable Internet network 101 includes an access terminal (AT) 107 which is a portable internet terminal, an access point (AP) 106 performing a base station function, and a packet connection. A packet access router (PAR) 105 that performs routing and mobile agent external agent functions, and an AAA server that performs authentication, authorization, and billing functions. : 104).

Such a portable internet network may interwork with other internet networks through the AAA server 104, and may use a diameter protocol in which internet standardization is in progress. An initialization procedure is performed between the AAA 104 and the PAR 105 according to the present invention, and subscriber information generation, retrieval, and deletion are performed at the request of the user.

2 is a diagram illustrating subscriber information items generated and managed in a PAR in the portable Internet according to an embodiment of the present invention.

Referring to FIG. 2, the subscriber information is largely divided into a subscriber profile and a service flow. One profile and a plurality of flow items are generated for each subscriber. This is because it is managed for each service flow according to the quality of service (QoS) provided to the user. The profile item is a context ID 201, which is a unique identifier between the AP 106 and the PAR 105, IP address information 202 representing the user's Internet address, and a message authentication code that is a hardware aware address of the AT 107. (Massage Authentication Code: MAC) address 203, number of flows serviced 204, service status 205 of the current AT, number of service classes provided to the user 206, service class name 207, service to subscribers Address form 209, the cell ID 210 of the place where the subscriber is receiving service. In addition, the flow item is an item required when a plurality of services are provided to one subscriber, and uniquely distinguishes a service flow and a context ID 201, which is a unique identifier between the AP 106 and the PAR 105. Flow ID 211, service class name 212, QoS type 213, maximum sustained traffic rate 214, maximum traffic burst 215, minimum reserved traffic rate 216, flow schedule type 217, and Is classified as allowable jitter 218. When the authentication for the subscriber is completed, the profile items are filled, and then the flow items are filled and managed as connection settings are made for each flow.

3 is an operation flowchart illustrating a subscriber profile generation procedure in the portable Internet according to an embodiment of the present invention.

Referring to FIG. 3, the generation of the subscriber profile occurs at the time when authentication for the subscriber is completed.

First, when the subscriber starts to access the service, the PAR 105 sends a DER (Diameter EAP Request) / Identity message including the ID of the subscriber to the AAA 104 which is the authentication server (S301), and receives the AAA 104. The user determines whether the user is a legitimate subscriber and transmits a DEA (Diameter EAP Answer) / TLS start message (S302). Here, EAP stands for Extensible Authentication Protocol and TLS stands for Transport Layer Security.

Thereafter, the PAR 105 sends a DER / Client-Hello message including session information and connection information (S303), and in response, DEA / Server-Hello is similarly transmitted from the AAA 104 (S304).

Next, the PAR 105 and the AAA 104 sends a DER / TLS certificate from the PAR 105 to exchange a certificate between each other (S305), and in the AAA 104, a DEA / TLS change cipher spec and TLS finished message. By transmitting and transmitting the message, it transmits to the PAR 105 that the use of the new encryption algorithm and the handshaking procedure are completed (S306).

Finally, the DER / Ack is transmitted (S307), and by receiving the DEA / Success, the exchange of certificates between each other is completed (S308).

If the procedure is successful, authentication of the subscriber is completed. At this time, subscriber profile information is transmitted from the AAA 104, and the information is generated as a subscriber profile in a memory in the PAR 105 system (S309).

4 is an operation flowchart illustrating a subscriber profile and a flow search and change procedure in the portable Internet according to an embodiment of the present invention.

Referring to FIG. 4, after the subscriber authentication (HPI authentication) is completed (S401), the AP 106 transmits a CREG_req message to inform the PAR 105 of registration information of the subscriber station. Starts (S402), the PAR 105 performs a search for the subscriber profile (S403), determines whether to accept the subscriber's registration, and transmits a CREG_rsp message including the result to the AP 106. (S404).

When the message transmission is completed and the service registration is completed, the change to the subscriber profile is performed (S405). Thereafter, the AP 106 transmits a DSA_req message including a new traffic connection establishment request (S406). Receiving the DSA_req message, the PAR 105 performs a search for a service flow to determine whether to accept the request with a call admission control mechanism (S407).

The PAR 105 negotiates a QoS value or a service level that can be provided for new traffic requested by the AP 106, and then transmits a DSA_rsp message including whether to accept the traffic connection establishment request and negotiation values. Retransmit to (S408).

Subsequently, the AP 106 notifies by sending a DSA_ack message whether the traffic connection has been requested by the DSA_req as an acknowledgment message of the DSA_rsp message (S409), and then a change to the service flow occurs in the PAR 105 (S409). S410). At this time, the search and change of the service flow occurs as many as the number of services provided by the subscriber.

5 is an operation flowchart illustrating a procedure of deleting a service flow in the portable Internet according to an embodiment of the present invention.

Referring to FIG. 5, this deletion procedure is a procedure of releasing a service flow for the AT 107 which is receiving a service. First, a DSD_req message is transmitted to the PAR 105 in order to request release of a previously set traffic (S501). ). After receiving the DSD_req message, the PAR 105 deletes the required traffic (S502), and transmits a DSD_rsp message to the AP 106 as an acknowledgment message for the DSD_req message (S503), thereby completing the deletion procedure. do.

6 is a flowchart illustrating a procedure of deleting a subscriber profile from the portable Internet according to an embodiment of the present invention.

Referring to FIG. 6, this deletion procedure is a procedure of releasing registration for the AT 107 which is receiving the service, and transmits a DREG_req message to the PAR 105 to request the release of the registration to the configured AT 106. (S601). Upon receiving the DREG_req message, the PAR 105 deletes the subscriber profile (S602). At this time, if there is flow information related to the subscriber profile, the PAR 105 is also deleted. The deletion procedure is completed by transmitting a DREG_rsp message to the AP 106 as an acknowledgment message for the DREG_req message (S603).

In conclusion, unlike the conventional wireless Internet, the high-speed portable Internet defines a plurality of service flows according to service types, and flows are generated and maintained according to a service required by a user. In the existing wireless Internet network, only the subscriber profile is managed in the AAA server, but in the high-speed portable Internet system, not only the subscriber profile in the AAA but also the subscriber profile and the service flow are managed in the PAR where actual traffic control occurs. Therefore, when the subscriber information is loaded into the PAR during the initial authentication, all the application blocks of the PAR perform operations based on the subscriber profile in the PAR, and when services are added, the operation is performed while managing the service flow for each service. At this time, the communication between the AAA server and the PAR is made using the Diameter Protocol of the Internet Engineering Task Force (IETF) .When a subscriber starts registration, profile information is transferred from the AAA to the PAR, and the subscriber service Releasing the subscriber will immediately delete the subscriber information from the PAR.

Therefore, in the method of managing subscriber information of the portable Internet system according to the present invention, the subscriber profile and the service flow information can be serviced by the flow of the subscriber and the billing of each service is also possible. It can provide high service.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and various other changes and modifications are possible.

According to the present invention, since each service can be managed for each service flow in the portable Internet system, a plurality of services can be generated for each user, and different policies for each service can be applied.

In addition, according to the present invention, by appropriately applying the service flow can provide a plurality of differentiated services for one user, and, in addition, such a differentiated service policy can be easily applied to other policies such as billing.

Claims (14)

What is claimed is: 1. A method of managing subscriber information in a portable Internet system including an access point (AP), a packet access router (PAR), and an authentication authorization accounting (AAA) server. a) when the service connection is attempted from the subscriber, performing the subscriber authentication between the AAA server and the PAR; b) when authentication for the subscriber is completed, defining and generating subscriber information in the PAR including subscriber profile items and service flow items corresponding to the subscriber; And c) after the subscriber information is generated in the PAR, connection setting is made for each specified service flow and the service flow items are generated to manage the subscriber information to provide a service according to the subscriber information to the subscriber; Subscriber information management method comprising a. delete The method of claim 1, The AAA server and the PAR is a subscriber information management method characterized in that for performing communication using a (diameter) protocol. The method of claim 1, In the subscriber profile item, Context ID, which is a unique identifier between the AP and the PAR, IP address information indicating an Internet address of the user, a message authentication code (MAC) address, which is the hardware recognition address of the subscriber, the number of flows serviced, the current subscriber's service A method of managing subscriber information, including status, number of service classes provided to a user, service class names, address types served to subscribers, and cell IDs of places where the subscribers are being served. The method of claim 1, The service flow item is used when a plurality of services are provided for one subscriber, a context ID which is a unique identifier between the AP and the PAR, a flow ID that uniquely distinguishes a service flow, a name of a service class, a QoS type, Subscriber information management method including maximum sustained traffic rate, maximum traffic burst, minimum reserved traffic rate, flow schedule type, and allowable jitter. The method of claim 1, Step a) is The AAA server performing the subscriber authentication at the request of the PAR; The PAR delivering session information and connection information to the AAA server; Sending, by the PAR, a message for certificate exchange to the AAA server; The AAA sending a message to the PAR informing that the use of a new encryption algorithm and a handshaking procedure have been completed; Sending, by the AAA, the subscriber profile related information to the PAR after authentication of the subscriber is completed; And The PAR generating and storing a profile for the subscriber using the subscriber profile related information transmitted from the AAA server Subscriber information management method comprising a. The method of claim 1, C), After authentication of the subscriber, retrieving and changing the subscriber profile and service flow; Deleting a requested service flow when there is a service flow release request from the subscriber; And If there is a deregistration request from the subscriber, deleting the required subscriber profile Subscriber information management method comprising a. The method of claim 7, wherein The searching and changing the subscriber profile may include: After the authentication for the subscriber is completed, the AP transmitting registration information of the subscriber to a PAR; The PAR performing a search for the subscriber profile; Determining whether to accept the subscriber's registration and transmitting the result to the AP; And Performing a change to the retrieved subscriber profile Subscriber information management method comprising a. The method of claim 7, wherein The service flow search and change step, i) the AP sending a new traffic connection establishment request to the PAR; ii) the PAR performing a service flow search capable of providing the requested traffic and transmitting the result to the AP; iii) the AP informing the PAR whether to establish the traffic connection according to the search result; And iv) the PAR changing the retrieved service flow Subscriber information management method comprising a. The method of claim 9, Step ii) is performed by the call admission control mechanism to determine whether to accept the request. The method of claim 9, The step iii) is performed to negotiate information including a QoS value or a service level that can be provided for new traffic requested by the AP. The method of claim 9, The subscriber information management method, characterized in that the search and change for the service flow occurs as many as the number of services provided by the subscriber. The method of claim 7, wherein Deleting the service flow, Sending a previously released traffic release request to the PAR to release the service flow for the subscriber that was receiving the service; The PAR receiving the traffic release request deletes the requested traffic; And Transmitting an acknowledgment for the traffic release request to the AP Subscriber information management method comprising a. The method of claim 7, wherein Deleting the subscriber profile, Transmitting a deregistration request of a subscriber who has received a service to the PAR; The PAR receiving the deregistration request deletes the profile for the subscriber; And Transmitting an acknowledgment for the deregistration request to the AP. Subscriber information management method comprising a.

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