KR100812484B1 - System and method for providing free contents in wcdma network - Google Patents

Abstract

A system and a method for providing free contents in a WCDMA network are provided to admit a call connection with a contents server if the contents server, which a subscriber who exceeds a fee limit or exhausts an advance fee wants to connect with, is one registered as a free contents server, thereby enabling the subscriber to use free contents. An SCP(Service Control Point)(60) manages the balance of an intelligent network advance payment subscriber terminal(10). An SGSN(Service GPRS Supporting Node)(40) requests intelligent network initiation to the SCP as the SGSN receives a GPRS(General Packet Radio Service) call originated by a terminal, which wants to receive a contents service, and analyzes a call release cause included in a GPRS call release message if the GPRS call release message is required by the SCP to determine call progression, and admits the call progression when the call release cause is due to the exhaustion of an advance fee. A GGSN(Gateway General packet radio service Support Node)(70) stores an IP(Internet Protocol) address list of non-paid contents servers for providing free contents, progresses a call connection with a contents server(80) if an IP address is included in the IP address list by monitoring the IP address of the contents server with which the terminal attempts connection to receive the contents service, and requests call release to the SGSN if the IP address is not included in the IP address list.

Description

System and method for providing free contents in WPC network {SYSTEM AND METHOD FOR PROVIDING FREE CONTENTS IN WCDMA NETWORK}

1 is a process for explaining a free content providing method in a conventional WCDMA network.

2 is a diagram schematically illustrating a configuration of a system for providing free contents in a WCDMA network according to an embodiment of the present invention.

3 is a flowchart illustrating a free content providing method in a WCDMA network according to an embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10. terminal, 20. node-B, 30. RNC,

40.SGSN, 50.HLR, 60.SCP,

70.GGSN, 80. Content Delivery Server

The present invention relates to a system and method for providing free content in a WCDMA network. In particular, the present invention relates to a free content in a WCDMA network that enables a free content to be provided to a subscriber who exceeds the usage fee limit or runs out of prepaid fees in a content-specific billing environment. A content providing system and method.

1 is a flowchart illustrating a conventional method for providing free content in a WCDMA network. In accordance with a key operation of an intelligent network prepaid subscriber who wants to receive free content, the terminal 1 sends a PDP to a Serving GPRS Supporting Node (SGSN) 3. (Packet Data Protocol) PDP context activation request message for requesting context activation is transmitted (S10), and SGSN 3, which has received PDP activation request from terminal 1, joins intelligent network service to terminal 1 requesting PDP activation. If so, the IDP (Initial Detection Point) message for requesting the intelligent network start to the SCP (Service Control Point) (7) for processing the intelligent network is transmitted (S12).

SCP (7), which has received IDP message from SGSN (3) through the process S12, checks the usage fee limit or balance of the terminal (1) that has requested the PDP context activation to SGSN (7) to receive free content. (S14), if the subscriber of the terminal 1 requesting activation of the PDP context exceeds the usage limit or the prepaid fee is completely exhausted (S16), the GPRS call release message is sent to the SGSN (3) that has transmitted the IDP message. Transmit (S18).

SGSN 3, which has received the GPRS call release message from SCP 7 through step S18, rejects the PDP context activation request requested by terminal 1, and performs call release (S20).

As described above, in the conventional WCDMA network, when the intelligent network prepaid subscriber wants to use the free content, the PDP context is activated when the subscriber who wants to use the free content exceeds the usage limit or the prepaid fee is exhausted. If you refuse the request, you will not be able to receive free content.

Accordingly, in the past, an intelligent network prepaid subscriber whose usage fee limit is exceeded or the prepaid fee is completely exhausted is completely blocked from using the contents provided by the mobile telecommunication service provider, thereby preventing the user from using the free contents without charging. There is this.

The present invention has been made to solve the above-described problems, even if the subscriber who attempted the GPRS call exceeds the usage limit or the prepaid fee is completely exhausted, the subscriber is registered as a free content providing server In case of attempting to access the network, the free content providing system in the WCDMA network enables the subscriber to receive the free content by proceeding with the call to the corresponding content providing server and having exceeded the usage limit or the prepaid fee completely. The purpose is to provide a method.

According to an aspect of the present invention, there is provided a system for providing free content in a WCDMA network, including: an SCP for managing a balance of an intelligent network prepaid subscriber terminal; Upon receiving the GPRS call sent by the terminal to be provided with the content service, when requesting the intelligent network to the SCP, and receiving a GPRS call release message from the SCP, the call release included in the GPRS call release message is received. Analyzing the cause to determine whether to proceed with the call, and if it is determined that the cause of the call release is due to the prepaid rate, SGSN to allow the call to proceed; If the terminal stores the IP address list for the non-billing content providing servers that provide the content for free, and the terminal connected to the session according to the request of the SGSN has exhausted the prepaid fee, the terminal receives the content service. To monitor the IP address of the content providing server attempting to access the IP address, and if the IP address is included in the IP address list, the call connection with the content providing server attempting to access the IP address is included in the IP address list If not, it preferably comprises a GGSN requesting the call release to the SGSN.

Furthermore, when the SCP checks the balance of the terminal according to the SGSN request for the initiation of the intelligent network and the prepaid fee is exhausted, the SCP includes a release cause value indicating that the cause of the prepaid fee is exhausted in the GPRS call release message. It is preferable to send to SGSN.

On the other hand, the free content providing method in the WCDMA network according to an embodiment of the present invention, pre-paid from the SCP while establishing a session with the terminal in SGSN in response to receiving a GPRS call originating from the terminal to receive the content service A first step of receiving a GPRS call release request message for releasing a GPRS call originated by the terminal due to exhaustion of a fee; A second step of establishing a session between the terminal and the GGSN when it is determined that the cause of release included in the GPRS call release request message is due to prepaid charges; And a third step of monitoring the IP address of the content providing server that attempts to access the session-connected terminal to block access to the charging content providing server.

Further, the first process may include receiving a packet data protocol (PDP) context activation request message requesting activation of a PDP context from the terminal by the SGSN; Analyzing the subscriber information received from the HLR when the terminal registers with the SGSN and transmitting the IDP (Initial Detection Point) message to the SCP requesting the intelligent network to start when the terminal is identified as the intelligent network service subscription terminal; If the prepaid rate is exhausted by checking the balance of the terminal in the SCP, it is preferable that the GPRS call release message includes a release cause value indicating that the cause of the prepaid charge is exhausted, and transmitting to the SGSN. Do.

And, in the second process, if it is determined that the cause of release is due to prepaid charges through the release cause value included in the GPRS call release message, the SGSN receiving the GPRS call release message generates a PDP context with GGSN. Transmitting a PDP context creation request message requesting the request; Transmitting a PDP context creation response message to the SGSN after the GGSN prepares to connect to the Internet network; Preferably, the SGSN includes transmitting a PDP context activation response message to the terminal.

Furthermore, the PDP context creation request message may include a private extension field including information indicating that the terminal is a terminal that has run out of a prepaid fee.

The third step may include: monitoring an IP address of a content providing server that attempts to access from the terminal if the terminal connected to the session has exhausted a prepaid fee; Performing a call connection with the content providing server when the IP address of the content providing server to which the terminal attempts to access is included in the IP address pre-registered with the non-billing content providing server as a result of the monitoring; If the IP address of the content providing server that the terminal attempts to access as a result of the monitoring is not included in the IP address pre-registered with the non-billing content providing server, it is preferable to include requesting a call release to the SGSN.

Hereinafter, a system and method for providing free content in a WCDMA network according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a road, a terminal 10, a Node-B 20, and a Radio Network Controller (RNC) 30 schematically illustrating a configuration of a system for providing free contents in a WCDMA network according to an embodiment of the present invention. And a SGSN 40, a Gateway GPRS Support Node (GGSN) 40, a Home Location Register (HLR) 50, an SCP 60, and a content providing server 80.

In this configuration, the terminal 10 is connected to the content providing server 80 through the GGSN 70 to receive a content service from the content providing server 80.

As described above, in order to receive the content service from the content providing server 80, the terminal 10 requests the SGSN 40 to activate the PDP context.

The Node-B 20 performs a wireless connection with the terminal 10 under the control of the RNC 30, and performs maintenance in association with the base station operation maintenance system.

The RNC 30 is located between the SGSN 40 / MSC (not shown) and the Node-B 20 to control the Node-B 20, but the Node-B 20 for line data services such as voice calls. It is in charge of resource allocation and link setting function in conjunction with MSC (not shown), and resource allocation and link setting function in conjunction with Node-B 20 and SGSN 40 for packet data service such as Internet communication. In charge.

SGSN 40 is a core network device for GPRS (General Packet Radio Service), which is a service for efficiently delivering high-speed data / low-speed data and signals using packet mode technology, and is matched with RNC for packet service of a mobile terminal. It performs the mobility management and packet call processing of the terminal, and matches with the GGSN 70 performs a packet tunneling function with an external packet network such as the Internet.

As described above, the SGSN 40 receives and stores subscriber information including subscriber-specific intelligent network information from the HLR 50 at the time of location registration, and then stores the PDP context from the terminal 10 via the Node-B and the RNC 30. When receiving the activation request, the subscriber information is analyzed and when the subscriber of the terminal 10 is identified as the intelligent network service subscriber, an IDP message requesting the SCP 60 to start the intelligent network according to the IDP (Initial Detection Point) message trigger information is sent. When receiving the GPRS call release message from the SCP 60, the terminal 10 should reject the request for activation of the PDP context requested by the terminal 10, but the cause of the release is analyzed and the cause of the release may be due to exceeding the usage limit or prepaid charges. If it is confirmed, the terminal 10 requests the GGSN 70 to generate the PDP context without rejecting the requested PDP context activation request.

Meanwhile, the GGSN 70 is a node that plays a role of a gateway of a GPRS network, supports a role of a router that enables access to the Internet externally, and internally connects the GPRS network through an SGSN 40. Provides packet data service to subscribers.

As described above, the GGSN 70 stores a list of IP addresses of content providing servers providing content free of charge, and generates a PDP context according to a request for generating a PDP context of the SGSN 40, but the session is connected to the terminal 10. If the subscriber of the subscriber exceeds the charge limit or the prepaid fee is exhausted, the terminal 10 monitors the IP address of the content providing server, that is, the destination IP address, to which the terminal IP address is charged. In the case of the providing server, the call release is requested to the SGSN 40, and in the case of the content providing server in which the destination IP address does not charge, a session is established between the terminal 10 and the content providing server 80.

The HLR 50 stores subscriber information on which supplementary services the subscriber is subscribed to and which intelligent network services are received. If the subscriber attempts to register a location, the SGSN may request the SGSN at the request of the SGSN 40; At step 40, subscriber information including subscriber network information is transmitted.

SCP 60, on the other hand, performs management functions such as balance of each intelligent network prepaid subscriber, access IP address, and intelligent service control function.

As described above, when SCP 60 receives an IDP message from SGSN 40, it checks the balance of the subscriber of the terminal requesting activation of the PDP context, and if the balance of the subscriber exceeds the usage limit or the prepaid fee is exhausted, Send a GPRS call release message to the SGSN 40, but include the release reason code in the GPRS call release message indicating that the cause of the release is that the terminal subscriber requesting activation of the PDP context is exceeding the usage limit or the prepaid subscriber is exhausted. Send it.

3 is a flowchart illustrating a free content providing method in a WCDMA network according to an embodiment of the present invention.

First, when the terminal 10 attempts to register the location with the SGSN 40 (S30), the SGSN 40 requests the subscriber information from the HLR 50 in which the subscriber information is stored, and the subscriber information from the HLR 50. Receive the transmission (S32, S34).

The SGSN 40, which has received subscriber information from the HLR 50 through step S34, stores the received subscriber information in a predetermined memory area (S36).

Subsequently, in response to the GPRS call attempt of the intelligent network prepaid subscriber who wants to receive the free content, the terminal 10 transmits a PDP context activation request message requesting the PDP context activation to the SGSN 40 (S38).

The SGSN 40, which has been requested to activate the PDP from the terminal 10 through the process S38, analyzes the subscriber information received from the HLR 50 when the terminal 10 registers the location as the SGSN 40, and performs a GPRS call. When the attempted subscriber is identified as the intelligent network service subscriber, the IDP message for requesting the intelligent network start is transmitted to SCP 60 according to the IDP message trigger information (S40).

Upon receiving the IDP message from the SGSN 40 through the process S40 described above, the SCP 60 checks the usage fee limit or balance of the subscriber who attempted the GPRS call (S42), and the subscriber exceeded the usage fee limit or the prepaid fee. When it is confirmed that the subscriber is completely exhausted (S44), the GPRS call release message is transmitted to the SGSN 40 (S46).

In the above process S46, the SCP 60 releases the GPRS call release message sent to the SGSN 40, indicating that the cause of the release is that the subscriber attempting the GPRS call exceeds the usage limit or the prepaid subscriber is exhausted. Include and send.

SGSN 40, which received GPRS call release message from SCP 60 through the above process S46, confirmed that the cause of release was due to exceeding usage limit or prepaid charges through release reason code included in GPRS call release message. In operation S48, the GGSN 70 transmits a PDP context creation request message requesting the creation of a PDP context.

The PDP context creation request message transmitted from the SGSN 40 to the GGSN 70 through the above process S48 is optionally including a private extension field, and the SGSN 40 sends a GPRS call to the private extension field. The subscriber who attempts to store the information indicating that the subscriber exceeds the usage limit or the prepaid fee is exhausted and transmits the information to the GGSN 70.

The GGSN 70, which has been requested to create a PDP context from the SGSN 40 through the process S48, transmits a PDP context creation response message to the SGSN 40 after preparing to connect to the Internet network (S50).

The SGSN 40 receiving the PDP context creation response message from the GGSN 70 through the process S50 transmits the PDP context activation response message to the terminal 10 (S52).

The terminal 10 receiving the PDP context activation response message through the process S52 attempts to access a content providing server 80 providing free content through the GGSN 70 (S54).

Meanwhile, the GGSN 70, which has transmitted the PDP context creation response message to the SGSN 40 through the process S50, analyzes the value stored in the PIPIT field included in the PDP context creation request message to determine the GPRS call. If the attempted subscriber exceeds the usage limit or the prepaid fee is exhausted, the subscriber who attempted the GPRS call monitors the IP address of the content providing server to which the subscriber attempted access (S56). If the IP address of the attempted content providing server 80, that is, the destination IP address is an IP address pre-registered with the IP address of the non-billing content providing server providing the content to the GGSN 70 free of charge, the terminal 10 and the terminal 10; By setting a session between the content providing server 80 to allow the terminal 10 to receive free content provided by the content providing server 80 (S58, S60).

On the other hand, if the IP address of the content providing server 80 attempted to access from the terminal 10 is not an IP address registered in advance as the IP address of the non-billing content providing server, the GGSN 70 sends a PDP to the SGSN 40. The PDP context deletion request message requesting the context deletion is transmitted (S62).

The SGSN 40 receiving the PDP context deletion request message from the GGSN 70 through the process S62 performs a session connection release procedure with the terminal 10 (S64).

The free content providing system and method in the WCDMA network of the present invention are not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

According to the system and method for providing free content in the WCDMA network of the present invention as described above, the content providing server to which the subscriber who has exceeded the usage fee limit or the prepaid fee is exhausted is pre-registered as the free content providing server. If the content providing server, by allowing a call connection with the content providing server, free content can be used even if the usage fee limit is exceeded or the prepaid fee is exhausted.

Claims (8)

SCP for managing the balance of the intelligent network prepaid subscription terminal; Upon receiving the GPRS call sent by the terminal to be provided with the content service, when requesting the intelligent network to the SCP, and receiving a GPRS call release message from the SCP, the call release included in the GPRS call release message is received. Analyzing the cause to determine whether to proceed with the call, and if it is determined that the cause of the call release is due to the prepaid rate, SGSN to allow the call to proceed; If the terminal stores the IP address list for the non-billing content providing servers that provide the content for free, and the terminal connected to the session according to the request of the SGSN has exhausted the prepaid fee, the terminal receives the content service. To monitor the IP address of the content providing server attempting to access the IP address, and if the IP address is included in the IP address list, the call connection with the content providing server attempting to access the IP address is included in the IP address list If not, the system for providing free content in WPC network comprising GGSN requesting call release to SGSN. The method of claim 1, wherein the SCP, When the prepaid charges are exhausted by checking the balance of the terminal according to the SGSN initiation request, the GPRS call release message includes a release cause value indicating that the cause of the prepaid charge is exhausted and is transmitted to the SGSN. Free contents providing system in the WBC network. GPRS call release request message to release the GPRS call originated by the terminal due to prepaid charges from the SCP while establishing a session with the terminal in SGSN upon receiving the GPRS call originated by the terminal to be provided with the content service. A first process of receiving; A second step of establishing a session between the terminal and the GGSN when it is determined that the cause of release included in the GPRS call release request message is due to prepaid charges; And a third process of monitoring an IP address of a content providing server that attempts to access from the session-connected terminal to block access to a charging content providing server. The method of claim 3, wherein the first process, Receiving a packet data protocol (PDP) context activation request message requesting activation of a PDP context from the terminal by the SGSN; Analyzing the subscriber information received from the HLR when the terminal registers with the SGSN and transmitting the IDP (Initial Detection Point) message to the SCP requesting the intelligent network to start when the terminal is identified as the intelligent network service subscription terminal; The SCP checks the balance of the terminal and if the prepaid fee is exhausted, the method includes the step of transmitting to the SGSN by including a release cause value indicating that the cause of the prepaid charge is exhausted in the GPRS call release message. How to provide free content in WPC network. The method of claim 3, wherein the second process, If the SGSN receiving the GPRS call release message determines that the release cause is due to prepaid charges through the release cause value included in the GPRS call release message, a PDP context creation request message requesting the creation of a PDP context to GGSN. Transmitting; Transmitting a PDP context creation response message to the SGSN after the GGSN prepares to connect to the Internet network; And transmitting a PDP context activation response message from the SGSN to the terminal. The method of claim 5, wherein the PDP context creation request message, And a private extension field including information indicating that the terminal indicates that the terminal is depleted in a prepaid fee. The method of claim 3, wherein the third process, Monitoring the IP address of the content providing server that the terminal attempts to access if the terminal connected to the session has exhausted the prepaid fee; Performing a call connection with the content providing server when the IP address of the content providing server to which the terminal attempts to access is included in the IP address pre-registered with the non-billing content providing server as a result of the monitoring; If the IP address of the content providing server that the terminal has attempted to access is not included in the IP address pre-registered as the non-billing content providing server, the monitoring request is made to the SGSN. How to provide free content in CDM network. The method of claim 7, wherein whether the session-connected terminal is a terminal that has used up a prepaid fee, And a value stored in a private extension field included in the PDP context creation request message received from the SGSN.

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