KR20050077976A - A method for providing session information for wireless data service and a system for enabling the method - Google Patents

Abstract

The present invention relates to a method and system for providing session information of a user for a wireless data service, and more particularly, to a wireless data service server for receiving and managing user session information from a data service node and requiring session information of the user. The present invention relates to a method and system for providing user session information for providing session information of a user.

A system for providing session information of a user for a wireless data service according to the present invention receives a wireless data service request packet from a user terminal, extracts a telephone number of the user terminal from a PPP header of the wireless data service request packet, and the user terminal. A data service node for allocating an IP address to the client; a client identity server for receiving the telephone number and the IP address from the data service node and storing the telephone number and the IP address in a predetermined session information database; and from the data service node. A wireless data service that receives a wireless data service request packet and the IP address, provides the IP address to the client identification server, receives the telephone number corresponding to the IP address, and performs service-specific charging for the telephone number. It characterized in that it comprises a server.

According to the method and system for providing the user's session information for the wireless data service according to the present invention, since the telephone number of the user is not included in the HTTP header, the telephone number of the user is prevented from being transmitted to ordinary contents providers. It can prevent users from leaking personal information and provide smooth wireless data service.

Description

A METHOD FOR PROVIDING SESSION INFORMATION FOR WIRELESS DATA SERVICE AND A SYSTEM FOR ENABLING THE METHOD}

The present invention relates to a method and system for providing session information of a user for a wireless data service, and more particularly, to a wireless data service server for receiving and managing user session information from a data service node and requiring session information of the user. The present invention relates to a method and system for providing user session information for providing session information of a user.

In particular, the present invention relates to a method and system for managing session information of a user between wireless terminals in a mobile communication network using an AAA (Authentication, Authorization, Accounting) system. The present invention manages session information of a user who wants to use a wireless data service such as a wireless application protocol (WAP) service, a multimedia message service (MMS) service, a video on demand (VOD) service in a mobile communication network using an AAA system, And providing session information of the user to a system requiring the session information of the user.

According to the related art, when a user uses a wireless Internet service, a data service node automatically transmits user session information sent from the wireless terminal such as a WAP gateway, an MMS server, a VOD server, or another content providing server. Deliver to a Wireless Data Service Server. Wireless data service servers, such as WAP gateways and MMS servers, use that information to provide services to users and to perform billing and statistical data generation. Therefore, the user's information is disclosed to wireless data service servers and content providers, and security problems such as information leakage of the user may occur.

1 is a block diagram illustrating a network connection of network components providing a wireless data service according to the prior art.

Referring to FIG. 1, network components providing a wireless data service according to the related art are largely provided with a user terminal 101 transmitting a wireless data service request packet of a user, and receiving a wireless data service request packet of the user, thereby receiving the AAA system. A data service node 103, a WAP gateway 105, an MMS server 106, or the like, which transmits the wireless data service request packet of the user to the WAP gateway 105 upon transmission to the 104 and authentication by the AAA system 104; Wireless data service server 105, 106, 107, 109, 110 to provide a service and billing function of.

The user transmits the user service request packet to the data service node 103 such as PDSN and GGSN through the wireless network 102 using the HTTP / TCP / PPP protocol in the user terminal 101. Send. The program stored in the user terminal 101 makes the user service request packet in HTTP (Hypertext Transport Protocol) format, and then adds a TCP header and an IP header to the HTTP packet. That is, in the OSI 7 layer, TCP is used as the fourth layer and IP is used as the third layer. The data link layer uses PPP (Point-to-Point Protocol). At this time, the client program of the user terminal 101 transmits the telephone number (MIN number) of the user terminal 101 in the HTTP header. The telephone number includes a mobile identification number (MIN), an international mobile subscriber identity (IMSI), and the like. The user terminal 101 also transmits the electronic serial number (ESN) of the user terminal 101 to the data service node 103.

The data service node 103 cooperates with the AAA server 104 to authenticate whether the user is a legitimate user using the ESN number of the terminal 101 of the user. For example, in case of the ESN of the stolen / lost user terminal 101, user authentication is not allowed. In the normal user terminal 101, user authentication is allowed. The data service node 103 determines whether the ESN number of the user terminal 101 is normal by maintaining a database of normal / abnormal ESN numbers.

When the user service is authenticated at the data service node 103, the data service node 103 gives the user terminal 101 an IP address for using the wireless Internet service. The data service node 103 sends the user terminal number (telephone number), IP address and ESN number to the AAA server 104 using the RADIUS protocol.

The data service node 103 transmits the user service request packet and the IP address transmitted by the user terminal to the wireless data service server such as the WAP gateway 105. At this time, since the data service node 103 bypasses the received user service request packet to the wireless data service server, the telephone number (MIN) of the user terminal included in the HTTP header is also included in the WAP gateway 105 and the MMS. It is delivered to a wireless data service server such as the server 106, the VOD server 107, the content providing server 109, 110, and the like.

The WAP gateway 105 is connected with content providing servers 109, 110 via the Internet 108. The WAP gateway 105 transmits a service request packet to a contents provider server 109 and 110 that processes a corresponding service by referring to an HTTP header, and refers to each telephone number by referring to a user terminal telephone number included in the HTTP header. Charge according to the type of service. For example, since the WAP gateway 105 refers to the HTTP header, the WAP gateway 105 may determine the type of service requested by the user service request packet. Therefore, if billing differs according to the type of service, billing is performed accordingly. For example, a service provided by the CP server 109 may be charged for 10 won per minute, and a service provided by the CP server 110 may be charged for 100 won per minute. In this case, if the service requested by the user terminal 101 through the user service request packet is a service of the CP server 109, and the telephone number of the user terminal 101 is 012-345-6789, the CP for the telephone number The WAP gateway 105 performs charging of 10 won per service providing time of the server 109. In addition, if the service requested by the user terminal 101 is a service of the CP server 110, the WAP gateway 105 performs charging of 100 won per service providing time of the CP server 110 for the telephone number. In addition, the charging may be performed by the CP servers 109 and 110 itself instead of the WAP gateway 105, and may be similarly performed by the MMS server 106 and the VOD server 107.

The wireless data service server may also perform authentication as to whether the terminal 101 can use the service requested by the terminal 101 with reference to the telephone number of the user terminal 101.

As described above, in the wireless data service use environment of the prior art, the user terminal transmits a service use request packet to the data service node by including its own telephone number (MIN number) in the HTTP header, and the HTTP header is transmitted to the wireless data service server. It was delivered to them. Therefore, since the telephone numbers of the user terminals are transmitted to the plurality of content providers, the user's personal information is provided to the plurality of content providers, thereby causing a problem regarding the user's privacy protection. In addition, the user's personal information is leaked, and it is also likely to be useful for malicious purposes.

In addition, when the user terminal does not include the telephone number of the user terminal in the HTTP header, according to the prior art, since the telephone number of the user terminal is unknown to the wireless data service server such as a WAP gateway, the user terminal may be charged. There was a problem that could not be. Since there are so many manufacturers of mobile communication terminals, it is very difficult for all mobile terminal manufacturers all over the world to require the transmission of the user's phone number in the HTTP header when using the wireless data service. In fact, there are many companies that produce mobile communication terminals that do not include the phone number of the user terminal in the HTTP header when using the wireless data service in the user terminal.

Therefore, the user's personal information is protected by not including the session information of the user terminal in the HTTP headers provided to the wireless data service servers, and the session information such as a phone number is included in the HTTP header when the user terminal requests the wireless data service. Even without including the transmission, there is an urgent need for a mobile communication environment in which the session information can be obtained, thereby protecting the user's personal information and enabling billing for each user.

The present invention has been made to improve the prior art as described above, the method and system for providing session information of a user for a wireless data service according to the present invention is a wireless data service node to the session information of the user who wants to use the wireless data service Instead of automatically forwarding to the data service server, only the IP address assigned to the wireless terminal is forwarded, and the wireless data service servers that require the user's session information are interworked with the AAA system and the client identity server (Client Identity Server). It is an object of the present invention to provide a method and apparatus for obtaining user information.

In addition, the method and system for providing a user's session information for a wireless data service according to the present invention, the conventional method and system for providing user session information for a wireless data service, the wireless data service node to the session information of the user to use the wireless data service The purpose of the present invention is to solve the problem of leaking user session information to content providers by automatically delivering to a wireless data service server, so that the wireless data service can be used while protecting user privacy.

In addition, the user session information providing method and system for a wireless data service according to the present invention, the conventional method and system for providing user session information for a wireless data service, when the user terminal is to use the wireless data service, the telephone of the user terminal By requesting that the number be included in the HTTP header, the mobile phone terminal of various manufacturers can be solved by solving the problem that an appropriate service cannot be provided to a mobile communication terminal that does not include the telephone number of the user terminal in the HTTP header. Its purpose is to make it possible to easily perform billing by service.

The system for providing session information of a user for a wireless data service according to an embodiment of the present invention receives a wireless data service request packet from a user terminal and extracts a telephone number of the user terminal from a PPP header of the wireless data service request packet. A data service node for allocating an IP address to the user terminal, a client identification server for receiving the telephone number and the IP address from the data service node and storing the telephone number and the IP address in a predetermined session information database; Receives the wireless data service request packet and the IP address from a service node, provides the IP address to the client identification server, receives the telephone number corresponding to the IP address, and performs service-specific charging for the telephone number. Wireless It includes a data services server.

In addition, in the user section providing system for a wireless data service according to an embodiment of the present invention, the client identification server (CIS server) is a telephone number, IP of the user terminal requesting the wireless data service by communicating with the data service node in the RADIUS protocol A data service node communication unit for receiving an address and an ESN number, a session information database for storing the received telephone number, an IP address, and an ESN number as session information, and a user information request including an IP address of the user terminal from a wireless data service server. A wireless data server communication unit for receiving a packet, and a telephone number corresponding to an IP address of the user terminal received from the wireless data service server with reference to the session information database and searching for the wireless data service through the wireless data server communication unit; To server And a session processing unit for transmitting.

In addition, in the user section providing system for a wireless data service according to an embodiment of the present invention, the wireless data service server is a data service node communication unit for receiving a wireless data service request packet including the IP address of the user terminal from the data service node A client identification server communication unit configured to transmit a user information request packet including the IP address of the user terminal to a client identification server, and to receive a telephone number of the user terminal corresponding to the IP address; And a billing processing unit for processing billing information for each service of a service corresponding to the service request packet.

In addition, the method for providing session information of a user according to an embodiment of the present invention comprises the steps of receiving a telephone number, an IP address, and an ESN number of a user terminal requesting a wireless data service by communicating with a data service node through a RADIUS protocol; Storing a number, an IP address, and an ESN number as session information in a session information database, receiving a user information request packet including an IP address of the user terminal from a wireless data service server, and the session information database. And retrieving a telephone number corresponding to the IP address of the user terminal received from the wireless data service server and transmitting the phone number to the wireless data service server through the wireless data server communication unit.

Hereinafter, a method and a system for providing user session information for a wireless data service according to the present invention will be described with reference to the accompanying drawings.

2 is a diagram illustrating a network connection of network components providing a wireless data service according to an embodiment of the present invention.

Referring to FIG. 2, a network configuration related to a wireless data service providing system according to an embodiment of the present invention is largely based on a user terminal 201, a data service node 203, and an AAA server (Authentication Authorization Accounting Server). 204, a CIS server (Client Identity Server) 206, and a WAP Gateway 206.

In the present invention, the user terminal 201 is a device having hardware and / or software capable of accessing a wireless network, such as a notebook, a PDA, a mobile phone, etc., and has a function of accessing the wireless network as well as the currently used device. Includes all devices to be used.

The user transmits a user service request packet interworking with the HTTP / TCP / PPP protocol in the user terminal 201 to the data service node 203 such as PDSN, GGSN, etc. via the wireless network 202. At this time, unlike the prior art, the client program of the user terminal 201 transmits the telephone number of the user terminal 201 without including it in the header of the HTTP protocol. In some cases, the user terminal 201 may transmit the ESN number of the user terminal 201 to the data service node 203. In this case, interworking with the HTTP / TCP / PPP protocol means that a protocol stack of the PPP protocol, the TCP protocol, and the HTTP protocol is used so that a user can use the wireless Internet service. At this time, the PPP header is transmitted to the WAP gateway 206 and is not transmitted in the subsequent process for using the user wireless service. In addition, since the HTTP header transmitted to the CP servers 210 and 211 does not include the telephone number of the user terminal, the CP servers 210 and 211 may use the user's telephone number only by requesting the user's wireless data service or IP address. Not known. Thus, the user's personal information is protected. The user terminal 201 also transmits an electronic serial number (ESN) of the user terminal 201 to the data service node 203.

The data service node 203 is a packet switching system that performs packet exchange between a mobile communication network and an internet network for a wireless internet service such as a packet data serving node (PDSN) and a gateway GPRS support node (GGSN). . GGSN is used in asynchronous mobile communication networks such as GSM, and PDSN is used in synchronous mobile communication networks such as CDMA. In addition, the data service node 203 assigns an IP address to the user terminal so that the user terminal can use the wireless Internet for the wireless Internet service. The data service node 203 works with the AAA server 204 to perform user authentication and billing.

The data service node 203 cooperates with the AAA server 204 to authenticate whether the user of the user terminal 201 is a legitimate user using the ESN number of the user terminal 201. For example, in case of the ESN number of the stolen / lost user terminal 201, user authentication is not allowed. If the ESN number of the user terminal 201 is normal, the user is authenticated. The data service node 203 determines whether the ESN number of the user terminal 201 is normal by maintaining a database of normal / abnormal ESN numbers. Since the data service node 203 does not know what kind of service the user terminal 201 requests, it does not perform user authentication according to the type of service. For example, the process where the specific service is available only to an adult is not performed by the data service node 203 but by a wireless data service server such as the WAP gateway 206. This is described later. Accordingly, the data service node 203 performs user authentication associated with the user terminal 201.

The data service node 203 assigns an IP address for using the wireless Internet service to the user terminal 201 when the user is authenticated. The data service node 203 assigns an IP address to the user terminal 201 using the DHCP protocol or using another method.

The data service node 203 may also charge the user terminal 201. In this case, the billing is a charge per packet or an hourly charge, and no charge per service is made. This is because the data service node 203 does not know what kind of service the user terminal 201 requests. For example, billing may be performed differently according to the type of service used by the user, which is difficult to process in the data service node 203. However, the data service node 203 can know the telephone number of the user terminal 201 and the time or packet amount used by the user terminal 201 to use the wireless data service can be measured. Regardless of the type, the charging per hour or per packet can be performed.

The data service node 203 extracts the telephone number of the calling user terminal through the PPP header of the received wireless data service request packet. The PPP header contains source telephone number information, and the data service node 203 extracts the telephone number of the user terminal 201 from the PPP header.

The data service node 203 uses the AAA server 204 and the telephone number (MIN number) of the user terminal extracted from the PPP header and the IP address assigned to the user terminal using the RADIUS (Remote Access Dial In User Service) protocol. And / or to client identification server (CIS server) 205. The data service node 203 may also transmit the ESN number received from the user terminal 201 to the AAA server 204 and / or the client identification server (CIS server) 205 using the RADIUS protocol. The RADIUS protocol was developed by Livingstone Inc. of the United States and is currently used as a standard on the Internet by the IETF as RFC2865. Using a standardized protocol such as the RADIUS protocol has the advantage of improving compatibility with other equipment.

The client identification server 205 maintains the telephone number and IP address of the user terminal received from the data service node 203 in a session information database (not shown). The two data become one user session information.

According to another embodiment of the present invention, the telephone number, IP address, and ESN number of the user terminal received from the data service node 203 are maintained in the session information database with one user session information. When the user's use of the wireless data service ends, the user session is terminated, and thus the user session information is also deleted from the session information database. Accordingly, the user session information is composed of the latest updated information. Therefore, by referring to the data of the session information database, it is possible to grasp the user session information currently using the service.

The data service node 204 transmits a user service request packet and an IP address transmitted by the user terminal 201 to a wireless data service server such as a WAP gateway 205. In this case, the data service node 204 forwards the received user service request packet to the wireless data service server, and since the HTTP header of the user service request packet does not include the telephone number of the user terminal, the telephone number of the user is a WAP gateway. 205, etc., is not delivered to the wireless data service server.

The AAA server 204 is a server that performs authentication, authorization, and accounting functions in association with the wireless data service node 203. In addition, the AAA server 204 stores information of wireless data servers in various regions in the environment file of the AAA server 204. In addition, when expanding or changing the address of the wireless data servers, it is preferable that the environment file maintains the latest information updated to reflect this change information. This environment file may also be managed by the CIS server 206 described below.

The Client Identity Server 205 performs an authentication function in conjunction with the WAP gateway 206, the MMS server 207, the VOD server 208, or the CP servers 210, 211, and performs a telephone call of the user terminal. A server that serves to transmit a number to a WAP gateway or the like.

The WAP gateway 206 is a device that connects the data service node 203 such as PDSN or GGSN with the Internet or other servers. In the present invention, the wireless data service server, such as WAP gateway 206, MMS server (Multimedia Messaging Server) 207, VOD server (Video on Demand Server) 208, CP server (Contents Provider Server), etc. It includes a variety of servers that can use the CIS server 205 according. That is, it includes all kinds of wireless data service servers that require a telephone number of a user terminal in providing a service. In the case of the CP server may be a server that provides content that requires the caller's phone number. For example, in the case of a friend search service that provides the current location of a user (User 1), the current location of the user 1 cannot be provided to anyone, and the user's location is only provided to the users allowed by the user 1. Since User 2 requests to provide information on User 1's current location, the CP server providing such a service can determine whether User 1 has provided location information for User 2 from User 2's telephone number. You must judge. Therefore, in this case, even in the case of the CP server, the user terminal phone number of the user who requested the service is required.

The wireless data service server such as the WAP gateway 206 transmits the IP address received from the data service node 203 to the client identification server 205 when the telephone number of the user terminal is needed as needed. The client identification server 205 then transmits the telephone number of the user terminal corresponding to the IP address to the wireless data service server by referring to the session information database. At this time, in order to prevent any wireless data service server from obtaining the telephone number of the user terminal from the client identification server 205, the client identification server 205 may perform predetermined authentication with respect to the wireless data service server. For example, the wireless data service server provides the client identification server 205 with a login ID and password for authentication, and the client identification server 205 authenticates the wireless data service server based on the data and then assigns the IP address to the IP address. Send the telephone number of the corresponding user terminal to the wireless data service server. That is, the CIS server 205 stores a login ID and password for authentication of the wireless data service server, and refers to the authentication unit in response to the reception of the user information request packet from the wireless data service server. It can be configured to authenticate the service server.

The wireless data service server such as the WAP gateway 205 transmits the received IP address to the AAA server 204 and / or the CIS server 205 and requests the telephone number of the user terminal corresponding to the IP address. The CIS server 205 retrieves the telephone number of the user terminal corresponding to the received IP address from the session information database and transmits it to the wireless data service server such as the WAP gateway 205. In addition, the CIS server 205 may be configured to store the latest updated information in the database when the expansion or address change of the wireless data service server.

The wireless data service server such as the WAP gateway 206 performs user authentication and billing according to the type of service identified from the received telephone number of the user terminal and the wireless data service request packet. For example, if a particular service is only allowed for adults, the WAP gateway 206 checks whether the user of the received telephone number is an adult. This may be performed by the WAP gateway 206 internally storing information on whether an adult exists for each phone number, or by querying a server of a mobile communication company. If the user of the telephone number is an adult, the service request packet is transmitted to the corresponding CP server. However, if the user of the telephone number is not an adult, the service request packet is not transmitted to the corresponding CP server. In addition, the WAP gateway 206 performs charging for each service. For example, if CP server 1 210 provides a service of 10 won per minute, and CP server 2 211 provides a service of 100 won per minute, the WAP gateway 206 may provide the service according to the service requested by the user. Charge by service using phone number.

The WAP gateway 206 transmits the wireless data service request packet to a CP server that performs a service requested by a user with reference to the received wireless data service request packet. Then, the CP server provides the corresponding service to the user terminal.

In the present invention, the telephone number of the user terminal includes all conventional telephone numbers for identifying the user terminal, such as MIN, International Mobile Subscriber Identity (IMSI).

3 is a diagram illustrating a network connection of network components providing a wireless data service according to another embodiment of the present invention.

As shown in FIG. 3, the client identification server according to the present invention may be configured to be included in an AAA server, or may be configured as a separate component from the AAA server as shown in FIG. 2. In the case of configuring the client identification server in the AAA server, the present invention can be implemented by adding a little function using the configuration of the conventional AAA server, so that the cost of the implementation can be reduced. In addition, according to the configuration of Figure 2 configured to configure the client identification server separately from the AAA server, there is an advantage that the object of the present invention can be achieved by only adding the CIS server according to the present invention in the already configured wireless data communication environment.

4 is a flowchart illustrating a procedure of a method for providing user session information for a wireless data service according to the present invention.

In operation 402, the user inputs a wireless service request using the user terminal 201. The user terminal 201 then generates a user service request packet interworking with HTTP / TCP / PPP and transmits it to the data service node 203 such as PDSN / GGSN via the wireless network (step 403). At this time, the client program of the user terminal 201 transmits the telephone number (MIN number) of the user terminal 201 without including it in the HTTP header. The user terminal 201 may also transmit the ESN number of the user terminal 201 to the wireless data service node 203.

The wireless data service node 203 receives the wireless service request packet (step 404) and performs user authentication. If the user authentication is successful, the wireless data service node 203 extracts the telephone number of the calling user terminal through the PPP header of the received service request packet (step 405), and assigns an IP address to the user terminal 201 ( Step 406). The data service node 203 sends the user terminal number (MIN number), IP address and ESN number to the AAA server 204 and / or the CIS server 205 using the RADIUS protocol (step 407).

The CIS server 205 communicates with the data service node 203 via the RADIUS protocol to receive a telephone number, an IP address, and an ESN number of the user terminal requesting the wireless data service (step 409), and receives the received telephone number, the IP address. And storing the ESN number as session information in the user session information database (step 410). The above three pieces of information are gathered into user session information. When the user finishes using the service, the session is terminated and the session information is deleted from the session information database.

The data service node 203 transmits the user service request packet and the IP address sent by the user terminal 201 to a wireless data service server such as a WAP gateway (step 408). At this time, the IP address is transmitted to the WAP gateway, but the user terminal number is not included in the HTTP header and thus is not transmitted to the wireless data service server such as the WAP gateway. The wireless data service server such as a WAP gateway receives an IP address and a user service request packet (step 411).

The wireless data service server sends a login ID and password to the CIS server 205 (step 412). The wireless data server also sends a user information request packet including the IP address of the user terminal to the CIS server 205 to request the user terminal telephone number corresponding to the IP address (step 412). After authenticating the login ID and password (step 413), the CIS server 205 retrieves the user terminal telephone number corresponding to the IP address received from the wireless data service server from the session information database (step 414). Etc., to the wireless data service server (step 415). When the wireless data server which may provide the telephone number of the user terminal inputs the login ID and password (step 419), the CIS server 205 stores the login ID and password for authentication of the wireless data server in advance. It is stored in the authentication database (step 420). Thereafter, upon receiving input of a login ID and password from the wireless data service server (step 412), the wireless data service server is authenticated with reference to the authentication database (step 413). If the authentication is successful, the phone number corresponding to the IP address of the user terminal is searched and transmitted to the wireless data service server. If the authentication is not successful, the wireless data service server is notified that the phone number information cannot be provided.

A wireless data service server such as a WAP gateway receives the user's telephone number (step 416) and delivers a service request packet to a CP or the like that processes the corresponding service with reference to the HTTP header. In addition, the wireless data service server charges and provides a service for each wireless user terminal telephone number (MIN number) received from the CIS server 205 (step 417).

The CP servers 210 and 211 provide a service, and when the service is terminated, the user session information providing system for the wireless data service is terminated (step 418).

5 is a block diagram illustrating an internal configuration of a client identification server (CIS server) in a system for providing session information of a user for a wireless data service according to an embodiment of the present invention.

The client identification server (CIS server) 500 largely includes a data service node communication unit 501, a session information database 502, a user session processing unit 503, a wireless data server communication unit 504, an authentication processing unit 505, and an authentication database. 506.

The data service node communication unit 501 performs communication with the data service node in the client identification server 500. The data service node communication unit 501 communicates with the data service node through a RADIUS protocol to receive a telephone number, an IP address, and an ESN number of a user terminal requesting a wireless data service. In addition, when the service use of the user terminal is terminated, the session termination packet is received from the data service node. In addition, the data service node communication unit 501 transmits a session end signal corresponding to the session end packet to the user session processing unit 503 so that the user session processing unit 503 transmits session information corresponding to the session end packet from the session information database. Delete it. The session end packet includes information for identifying session information. For example, the session termination packet may include all or part of the telephone number, ESN number, and IP address of the user terminal.

The session information database 502 stores the received telephone number, IP address, and ESN number of the user terminal as session information.

The wireless data server communication unit 504 communicates with a wireless data service server in the client identification server 500. The wireless data server communication unit 504 receives a user information request packet including an IP address of the user terminal from a wireless data service server. The wireless data server communication unit 504 also transmits telephone number information corresponding to the IP address to the wireless data service server.

The user session processing unit 503 searches the telephone number corresponding to the IP address of the user terminal received from the wireless data service server by referring to the session information database and performs the wireless data service through the wireless data server communication unit 504. Send to the server. In addition, the user session processor 503 receives the session end signal from the data service node communication unit 501 and deletes session information corresponding to the session end signal from the session information database.

The authentication database (authentication unit) 506 stores authentication data relating to which wireless data service server of the wireless data service server that has requested the telephone number of the user terminal. For example, authentication database 506 stores login IDs and passwords.

The authentication processor 505 authenticates the wireless data service server with reference to the authentication database 506 in response to receiving the user information request packet from the wireless data service server.

6 is a diagram illustrating a configuration of a session information database constituting a client identification server (CIS server) in a system for providing session information of a user for a wireless data service according to an embodiment of the present invention.

The session information database 600 stores the telephone number of the user terminal, the ESN number of the user terminal, and the IP address assigned to the user terminal for each session. When the user terminal makes a wireless data service request, the client identification server receives the session information from the data service node and stores the session information in the session information database.

When the service use of the user terminal is terminated, the client identification server receives information about the data from the data service node and deletes corresponding session information from the session information database.

7 is a block diagram illustrating an example of a wireless data service server in a system for providing session information of a user for a wireless data service of a user according to an embodiment of the present invention. The wireless data service server 700 includes a data service node communication unit 701, a client identification server communication unit 702, and a charging processing unit 703.

The data service node communication unit 701 receives the IP address and the wireless data service request packet of the user terminal from the data service node. The client identification server communication unit 702 transmits a user information request packet including the IP address of the user terminal to a client identification server, and receives a telephone number of the user terminal corresponding to the IP address. The billing processing unit 703 processes billing information for each service of a service corresponding to the service request packet with respect to the telephone number.

According to another embodiment of the present invention, the wireless data service server includes a user authentication unit (not shown) that performs user authentication for each service. The user authentication unit authenticates the user by determining whether the requested service is allowed for the user requesting the service.

In the embodiment of the present invention, the WAP gateway of the wireless data service server has been described, but the present invention can be similarly applied to a wireless data service server such as an MMS server, a VOD server, or other CP servers.

Embodiments of the invention also include computer-readable media containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The medium or program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

The hardware device described in the present invention may be configured to operate as one or more software modules to perform the operations of the present invention, on the contrary, the software device described in the present invention may also be configured to perform one or more hardware modules to perform the operations of the present invention. It can be configured to operate as.

According to the method and system for providing the user's session information for the wireless data service according to the present invention, the data service node does not automatically transfer the session information of the user who wants to use the wireless data service to the wireless data service server, but only assigns it to the wireless terminal. Wireless data service servers that deliver only IP addresses and require user session information can efficiently manage user session information by interworking with AAA systems and / or Client Identification Servers (CIS) to obtain user session information. Can be.

In addition, the method and system for providing the user's session information for the wireless data service according to the present invention, in the prior art, the wireless data service node automatically transfers the session information of the user to use the wireless data service to the wireless data service server user session By solving the problem of information leaked to content providers, it is possible to use the wireless data service while protecting the privacy of the user. In addition, since the PPP header including the telephone number information of the user terminal is not delivered after the WAP gateway, content providers cannot obtain the telephone number information of the terminal using the PPP header, and also call the HTTP header. Since the number information is not included, the user's telephone number information is freely distributed among the content providers.

In addition, according to the present invention, when the user terminal information providing method and system for the conventional wireless data service is to use the wireless data service, the user terminal by including the telephone number of the user terminal in the HTTP header to transmit the request, the user By solving the problem that an appropriate service could not be provided to a mobile communication terminal which does not include the telephone number of the terminal in the HTTP header, it is possible to easily perform service-specific charging using mobile communication terminals of various manufacturers.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a block diagram illustrating a network connection of network components providing a wireless data service according to the prior art.

2 is a diagram illustrating a network connection of network components providing a wireless data service according to an embodiment of the present invention.

3 is a diagram illustrating a network connection of network components providing a wireless data service according to another embodiment of the present invention.

4 is a flowchart illustrating a procedure of a method for providing user session information for a wireless data service according to the present invention.

FIG. 5 is a block diagram illustrating an internal configuration of a client identity server of a user session providing system for a wireless data service according to the present invention.

6 is a diagram illustrating an example of a session information database of a client identification server of a user session providing system for a wireless data service according to the present invention.

7 is a block diagram of a wireless data service server of a user session providing system for wireless data service according to the present invention.

<Description of Symbols for Main Parts of Drawings>

101, 201, 301: user terminal

102, 202, and 302: wireless communication network

103, 203, and 303: data service nodes

104, 204, 304: AAA Server

105, 206, 305: WAP Gateway

106, 207, 306: MMS Server

107, 208, 307: VOD server

108, 209, 308: Internet

109, 110, 210, 211, 309, 310: content provider server

Claims (9)

In the system for providing session information of a user for a wireless data service, A data service node receiving a wireless data service request packet from a user terminal, extracting a telephone number of the user terminal from a PPP header of the wireless data service request packet, and assigning an IP address to the user terminal; A client identification server which receives the telephone number and the IP address from the data service node and stores the telephone number and the IP address in a predetermined session information database; And Receive the wireless data service request packet and the IP address from the data service node, provide the IP address to the client identification server to receive the telephone number corresponding to the IP address, and charge for each telephone number per service. Wireless data service server Session information providing system comprising a. The method of claim 1, And the client identification server is included in an AAA server. A client identification server, A data service node communication unit communicating with the data service node through a RADIUS protocol to receive a telephone number, an IP address, and an ESN number of a user terminal requesting a wireless data service; A session information database for storing the received telephone number, IP address, and ESN number as session information; A wireless data server communication unit configured to receive a user information request packet including an IP address of the user terminal from a wireless data service server; And A session processing unit for retrieving a telephone number corresponding to the IP address of the user terminal received from the wireless data service server by referring to the session information database and transmitting it to the wireless data service server through the wireless data server communication unit; Client identification server comprising a. The method of claim 3, An authentication database for storing a login ID and a password for authentication of the wireless data service server; And An authentication processor for authenticating the wireless data service server with reference to the authentication database in response to receiving the user information request packet from the wireless data service server Client identification server further comprises. The method of claim 3, The data service node communication unit receives a session termination packet from the data service node, And the session processing unit deletes session information corresponding to the session end packet from the session information database in response to the session end packet. In a wireless data service server, A data service node communication unit for receiving a wireless data service request packet including an IP address of a user terminal from a data service node; A client identification server communication unit for transmitting a user information request packet including the IP address of the user terminal to a client identification server and receiving a telephone number of the user terminal corresponding to the IP address; And A billing processor configured to process billing information for each service of a service corresponding to the service request packet with respect to the telephone number; Wireless data service server comprising a. In the session information providing method of a user for a wireless data service, Receiving a telephone number, an IP address, and an ESN number of a user terminal requesting a wireless data service by communicating with a data service node through a RADIUS protocol; Storing the received telephone number, IP address, and ESN number as session information in a session information database; Receiving a user information request packet including an IP address of the user terminal from a wireless data service server; And Searching for the telephone number corresponding to the IP address of the user terminal received from the wireless data service server by referring to the session information database and transmitting the same to the wireless data service server; Session information providing method comprising a. The method of claim 7, wherein Maintaining a login ID and a password for authentication of the wireless data service server in a predetermined storage device; More, Searching for a telephone number corresponding to the IP address of the user terminal and transmitting to the wireless data service server through the wireless data server communication unit, In response to the reception of the user information request packet, when the authentication is successful by authenticating the wireless data service server with reference to the storage device, the telephone number corresponding to the IP address of the user terminal is searched to the wireless data service server. Method for providing session information, characterized in that for transmitting. A computer-readable recording medium having recorded thereon a program for implementing the method of claim 7 or 8 on a computer.