KR100678707B1 - Method for coping with abnormal blackout of portable internet terminal for use in premium service providing system - Google Patents

Abstract

A method for processing abnormal termination of a portable Internet terminal and a system for offering a premium service are provided to solve a loss of network resources which can occur from abnormal termination of the portable Internet terminal by canceling allocated resources immediately in case the portable Internet terminal is abnormally terminated. A method for processing abnormal termination of a portable Internet terminal comprises the following several steps. A premium service is requested from a PSS(Portable Subscriber Station)(S200). It is checked whether a connection maintenance message transfer program is installed at the PSS, and if not, the connection maintenance message transfer program is downloaded(S210,S212). A resource is allocated for transmission of contents, and if transmission of the content starts, it is checked whether the connection maintenance message is periodically received from the PSS to monitor the abnormal termination of the PSS(S220-S270). In case the connection maintenance message is not received from the PSS within a preset time, it is determined that the PSS is abnormally terminated, a premium service application server is notified of service termination and the portable Internet network is controlled so as to cancel the allocated resource(S290).

Description

Method for Coping with Abnormal Blackout of Portable Internet Terminal for Use in Premium Service Providing System}

1 is a block diagram schematically showing a portable Internet system for providing a premium service according to an embodiment of the present invention;

2 is a flowchart illustrating a method for providing a premium service in a portable Internet system according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: subscriber station 120: portable Internet network

140: premium service providing server 150: premium service application server

The present invention relates to a method for handling abnormal termination of a portable Internet terminal and a system for providing a premium service. More specifically, when the mobile internet terminal is abnormally terminated by periodically receiving a connection maintenance message from the mobile internet terminal and grasping the connection status of the mobile internet terminal in real time while the premium service is being provided in the mobile internet system providing the premium service. The present invention relates to a method and a premium service providing system for dealing with abnormal termination of a portable Internet terminal that solves the loss of network resources that may occur due to abnormal termination of the portable Internet terminal by immediately releasing allocated resources.

Due to the rapid dissemination of mobile communication terminals, mobile communication terminals are becoming an essential means of communication in modern life, such as a great amount of communication between remote sites using mobile communication terminals. In addition, with the rapid development of wireless communication and data communication technology, people can use various functions such as Internet connection, video communication and video message transmission as well as voice call using a mobile communication terminal.

Recently, with the development of information and communication, IMT-2000 (International Mobile Telecommunication 2000), which is a third generation mobile communication system established as a standard by ITU-R, has been commercialized. IMT-2000 is CDMA 2000 1X, 3X, EV-DO, Wideband CDMA (WCDMA), etc., and is used in IS-95A and IS-95B networks by using the IS-95C network that has evolved from the existing IS-95A and IS-95B networks. It is a service that can provide wireless Internet at a transmission speed of up to 144 Kbps, much faster than the supportable data transfer rate of 14.4 Kbps or 56 Kbps. In particular, by using IMT-2000 service, it is possible to provide various multimedia services (AOD, VOD, etc.) at a faster speed as well as improving existing voice and wireless broadcasting service (WBS) service quality.

However, the existing mobile communication system has a limitation in providing high-speed wireless Internet due to the high base station construction cost and the high usage rate of the wireless Internet, and the small size of the mobile communication terminal, which limits the available contents. Wireless Local Area Network (WLAN) technology has limitations in providing public services due to problems such as radio wave interference and narrow coverage. Accordingly, a mobile Internet system that can use a high-speed wireless Internet service at a low rate while moving has emerged.

The portable internet system uses various types of portable terminals such as laptops, PDAs, and handheld PCs to access various types of information and contents by accessing the Internet in indoor and outdoor stationary environments and mobile environments at walking speeds and low to medium speeds. It is a service. In addition, it provides mobility of 60 km / h per hour, and the downlink transmission rate is 24.8 Mbps, but the uplink transmission rate is 5.2 Mbps, which is an IP (Internet Protocol) based wireless data system having up and down asymmetric transmission characteristics.

In addition, the portable Internet system uses a 2.3 GHz frequency band, and in order to effectively use the allocated frequency spectrum, a time division duplex (TDD) is drawn by a duplex method, and a multiple access method is used. Uses Orthogonal Frequency Division Multiple Access (OFDMA).

Meanwhile, in order to provide multimedia services required by service subscribers on a wired or portable Internet with a desired quality of service, a quality of service (QoS) according to each user's needs must be provided. IP-based internet network does not guarantee high quality because it provides Best Effort Service. As a result, integrated services proposed by the Internet Engineering Task Force (IETF) have been developed as a way to guarantee QoS. Here, QoS refers to a service level required for a specific application program.

A typical method for guaranteeing QoS is to use a resource reservation protocol (RSVP), which is a resource reservation parameter for allocating network resources according to the request of QoS, and the request of QoS. As a result, quality is guaranteed using priority parameters that control network traffic by managing bandwidth. However, such a conventional method requires a subscriber station, a client of a multimedia service, to directly participate in a complex signal processing task for guaranteeing QoS, thereby increasing the load on the subscriber terminal and embedding software necessary for the signal processing task. As a result, the requirements of subscriber stations such as memory, central processing units, and peripheral devices are increased.

In order to solve this problem, in a multimedia service providing system using a mobile Internet system, a separate QoS server is installed to guarantee QoS, so that the QoS server takes charge of signal processing to guarantee QoS. Premium services have been developed to provide high quality multimedia content while reducing requirements. In the premium service, the QoS server requests a resource allocation task by transmitting QoS parameters to network equipments located on a data transmission / reception path between a content providing unit providing multimedia content and a subscriber station. Here, the QoS parameter includes a resource reservation parameter for using the wired resources such as the bandwidth of the network equipment described above to transmit the content selected by the subscriber and a priority parameter for preferentially transmitting the content selected by the subscriber. do. In addition, the resource allocation operation means that the aforementioned network equipment sets the bandwidth for the corresponding content and the priority for the corresponding content according to the resource reservation parameter and the priority parameter included in the QoS parameter. The QoS server notifies the content provider when the resource allocation work of the network equipment is completed, and the content provider transmits the selected content to the subscriber station to provide a high quality premium service.

In order to provide premium service traffic to a subscriber station in such a portable internet system, a network resource should be allocated to the subscriber station to establish a path. In addition, when the premium service is terminated, the release of network resources is performed by the subscriber station.

However, if abnormal termination of the subscriber station occurs during the provision of the premium service, the network resource allocated for the transmission and reception of traffic of the premium service may not be released due to the abnormal termination of the subscriber station.

Here, the abnormal termination of the subscriber station is when the power of the subscriber station is all discharged and the power of the subscriber station is turned off, and the signal is out of the base station signal reception range or the base station cannot receive the signal.

Therefore, even when the subscriber station is not provided with a premium service, network resources are allocated, resulting in inefficient resource loss due to waste of network resources.

In order to solve the above problems, the present invention, in the portable Internet system providing a premium service, by periodically receiving a connection maintenance message from the portable Internet terminal during the provision of the premium service to determine the connection state of the portable Internet terminal in real time When the terminal is abnormally terminated, it provides a method and a premium service providing system for handling abnormal termination of the mobile Internet terminal to solve the loss of network resources that may occur due to abnormal termination of the mobile Internet terminal by releasing the allocated resources immediately Its purpose is to.

In order to achieve the above object, the present invention provides a PSS (Portable Subscriber Station) which is provided with a premium service for transmitting high quality multimedia content with guaranteed quality of service (QoS) and periodically transmits a connection maintenance message to the premium providing system. A premium service application server for providing the premium service for transmitting the content by guaranteeing the QoS by generating the content and generating QoS information according to the request of the PSS to request resource allocation, a radio access station (RAS), In a mobile Internet network (HPi: High Speed Portable Internet or WiBro: Wide Broadband Internet) configured to include an access control router (ACR) and an IP network and provide resource allocation and routes for providing the premium service to the PSS. In the premium service providing system for providing a premium service, Create a QoS parameter using the QoS information received from the premium service application server and request a resource allocation operation on a path for transmitting data from the premium service application server to the personal subscriber station. Premium service providing server comprising a premium service providing server for checking the connection state of the PSS using the connection maintenance message received from the PSS during the provision and release the network resources allocated to the PSS that abnormal termination has occurred. Provide a system.

In addition, according to another object of the present invention, a PSS (Portable Subscriber Station) for receiving a premium service for transmitting high-quality multimedia content with guaranteed quality of service (QoS) and periodically transmitting a connection maintenance message to a premium providing system, A premium service application server that provides the premium service for generating the content and guaranteeing the QoS according to the request of the PSS to transmit the content, using the connection maintenance message received from the PSS during the provision of the premium service; The PSS is configured to include a premium service providing server, a RAS (Radio Access Station), an access control router (ACR), and an IP network that examines a connection state of the PSS and releases network resources allocated to the PSS in which abnormal termination has occurred. To provide the above premium services to In a mobile Internet network (HPi: High Speed Portable Internet or WiBro: Wide Broadband Internet) providing a resource allocation and route, a premium service providing method for providing a premium service, comprising: (a) providing the premium service from the PSS; Receiving a request; (b) determining whether a connection maintenance message transmission program is installed in the PSS, and if not, downloading and installing the connection maintenance message transmission program; (c) determining whether the PSS is abnormally terminated by performing the resource allocation for the transmission of the content, and checking whether the connection maintenance message received from the PSS is periodically received when the transmission of the content starts. ; And (d) determining that the PSS has abnormally terminated when the connection maintenance message transmitted from the PSS is not received within a predetermined time, notifying the premium service application server of the termination of the service, and causing the portable Internet network to It provides a premium service providing method comprising the step of controlling to release the allocated resources.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram schematically illustrating a portable Internet system for providing a premium service according to a preferred embodiment of the present invention.

According to an embodiment of the present invention, a portable Internet system for providing a premium service includes a personal subscriber station (PSS) 110, a portable Internet network (HPi: High Speed Portable Internet or WiBro). : Wide Broadband Internet) 120, premium service providing server 140 and premium service application server 150.

The PSS 110 refers to a portable terminal provided with a high-speed wireless Internet service using the portable Internet network 120, and according to a low power RF (RF) / IF (Intermediate Frequency) module and controller function, service characteristics and propagation environment. It has MAC (Media Access Control) frame variable control function, hand over function, authentication and encryption function. To this end, the PSS 110 has a built-in browser for accessing the Internet for high-speed wireless Internet.

In addition, the PSS 110 includes a personal digital assistant (PDA), a hand-held PC, a notebook PC, a smart phone, and a multi-mode multiband (MM-MB). Band) terminal or the like. Here, a smart phone is a terminal that combines the advantages of a mobile communication terminal and a personal portable terminal, and refers to a terminal incorporating data communication functions such as schedule management, fax transmission and reception, which are functions of a personal portable terminal, in a mobile communication terminal. In addition, a multimode multiband terminal is a multi-mode modem chip that can operate in both portable Internet systems and other mobile communication systems (for example, code division multiple access (CDMA) 2000 system, wideband CDMA (WCDMA) system, etc.) Speak terminal.

PSS 110 according to a preferred embodiment of the present invention is connected from the premium service providing server 140 when a service request for receiving a premium service from the premium service application server 150 via the mobile Internet network 120 After downloading and installing the maintenance message transmission program, premium service is provided. If the connection maintenance message transmission program is already installed in the PSS 110, the download is omitted. When the transmission and reception of multimedia content is started by the provision of the premium service, the PSS 110 executes the downloaded connection maintenance message transmission program and periodically transmits the connection maintenance message to the premium service providing server 140. To this end, the PSS 110 includes an application program for receiving and executing multimedia content and a connection maintenance message transmission program.

The mobile Internet network 120 includes a radio access station (RAS) 122, an access control router (ACR) 124, and a home. A home agent (HA) 126, an authentication server (AAA: Authentication, Authorization, Accounting) 128, and an IP network 130 are included.

The RAS 122 is a base station of the mobile Internet network 120, and wirelessly transmits data received from the ACR 124 to the PSS 110, and includes a low power RF / Intermediate Frequency (IF) module and a controller. Function, Orthogonal Frequency Division Multiple Access (OFDMA) / Time Division Duplex (TDD) packet scheduling and channel multiplexing function, service characteristics And a MAC frame variable control function, a 50 Mbps high-speed traffic real-time control function, and a hand over function according to a propagation environment. In addition, the PSS 110 and the RAS 122 have a 50 Mbps packet transmission modulation and demodulation function, a high speed packet channel coding function, a real time modem control function, and the like for data transmission.

The RAS 122 according to the preferred embodiment of the present invention receives a resource allocation request message including a quality of service parameter from the premium service providing server 140 to determine whether the QoS parameter can be satisfied. The determination result is transmitted to the premium service providing server 140. In addition, the RAS 122 according to a preferred embodiment of the present invention, if the QoS parameters can be satisfied, so that a resource path can be established between the premium service application server 150 and the PSS 110 to satisfy the QoS Perform the assignment.

The ACR 124 is a base station controller of the portable Internet network 120. Although not shown in FIG. 1 for convenience of description, the ACR 124 accommodates a plurality of RASs 122 or between the RASs 122 or the RAS 122 and the IP network 130. As a packet access router for connecting a network, a handover control function between the RAS 122, a handover function between the ACR 124, and a handover function between the base station of another network (for example, CDMA 2000 network, WCDMA network, etc.) and the RAS 122 And a packet routing function, an Internet access function, and the like, and are connected to the IP network 130.

The ACR 124 according to the preferred embodiment of the present invention receives a resource allocation request message including QoS parameters from the premium service providing server 140 to determine whether the QoS parameters can be satisfied, and determines the result of the premium service. When transmitting to the server 140, and the QoS parameter can be satisfied, the resource allocation operation is performed so that a path capable of satisfying the QoS between the premium service application server 150 and the PSS 110 can be set. In addition, it relays a message transmitted and received between the premium service providing server 140 and the RAS (122) according to a preferred embodiment of the present invention.

When using the mobile IP in the mobile Internet network 120, the HA 126 performs a function of routing a packet transmitted from the outside through the Internet (not shown), and the AAA 128 performs the ACR. In association with 124, the packet data used by the PSS 110 is charged, and the connection from the PSS 110 is authenticated.

The IP network 130 is a backbone network for transmitting and receiving data in the portable Internet network 120 and includes a plurality of network equipment such as a router. IP network 130 according to a preferred embodiment of the present invention, IP network 130 is ACR 222, HA 126 and AAA 128, premium service providing server 140, premium service application server 150 And the like, and receives packet data from an external packet data service such as the Internet (not shown) and transmits the packet data to the ACR 124.

In addition, the lower network equipment (not shown) constituting the IP network 130 according to the preferred embodiment of the present invention satisfies the QoS parameters by receiving a resource allocation request message including QoS parameters from the premium service providing server 140. It can be determined whether or not it can be made, and if the determination result is transmitted to the premium providing server, and if the QoS parameter can be satisfied, a path can be established between the premium service application server 150 and the PSS 110 to satisfy the QoS. Do resource allocation so that

The premium service providing server 140 is a device for requesting resource allocation work on a data transmission path between the PSS 110 and the premium service application server 150 to guarantee QoS, and is implemented as a network server. Network servers are computer systems and computer software that are typically connected to subordinate devices capable of communicating with other network servers through a computer network, such as a private intranet or the Internet, to receive and perform a task request and provide a result of the task. It means (network server program). However, in addition to such a network server program, it should be understood as a broad concept including a series of applications running on a network server and in some cases various databases built therein. Such a network server may be implemented using a network server program that is variously provided according to an operating system such as DOS, Windows, Linux, UNIX, or Macintosh.

The premium service providing server 140 according to a preferred embodiment of the present invention downloads the connection maintenance message transmission program to the PSS 110 at the time of providing the premium service so that the connection maintenance message is periodically received from the PSS 110 during the provision of the premium service. It determines whether it is arriving at and checks the connection state of the PSS (110). If the connection maintenance message does not arrive from the PSS 110 within a predetermined time while providing the premium service, the PSS 110 determines that the abnormal termination has been made and allocates the premium service to the PSS 110 having the abnormal termination. Free network resources.

Receives QoS information from the premium service application server 150 and transmits a resource allocation request message including QoS parameters to the IP network 130, the ACR 124, and the RAS 122, and then the subordinates of the IP network 130. A response message for a resource allocation request is received from the network equipment (not shown), the ACR 124, the RAS 122, and the like, and a result of whether the QoS is provided is transmitted to the premium service application server 150.

The premium service application server 150 is a device for providing a premium multimedia service to the PSS 110 and is implemented as a network server like the premium service providing server 140. When the premium service application server 150 receives a service request from the PSS 110, the premium service application server 150 provides a multimedia service using the portable Internet network 120. In addition, the premium service application server 150 provides a premium multimedia service that guarantees QoS in response to a request of the PSS 110.

When the premium service application server 150 according to the preferred embodiment of the present invention receives the request for the premium multimedia service from the PSS 110, the QoS service for generating the corresponding service is generated and transmitted to the premium service providing server 140 to provide the QoS. Ask for confirmation. In addition, the premium service application server 150 according to a preferred embodiment of the present invention receives a result of whether the QoS provided from the premium service providing server 140, and according to the result the content requested to the PSS (110) portable Internet The network 120 transmits or notifies that the service is unavailable.

2 is a flowchart illustrating a method for providing a premium service in a portable Internet system according to a preferred embodiment of the present invention.

When the subscriber who has subscribed to the portable Internet service performs key operation using the key input unit provided in the PSS 110, the PSS 110 is connected to the premium service application server 150 using the portable Internet network 120. do. The PSS 110 connected to the premium service application server 150 selects the content according to the key operation of the mobile Internet subscriber on the provided web page and requests the premium service to the premium service application server 150, and the premium service application server 150 receives a premium service request signal (S200).

When the premium service application server 150 receives the premium service request signal from the PSS 110, the premium service providing server 140 determines whether the connection maintenance message transmission program is installed in the PSS 110 (S210), and is installed. If not, to download and install the connection maintenance message transmission program (S212).

After downloading and installing the connection maintenance message transmission program to the PSS 110, the premium service providing server 140 receives the QoS information from the premium service application server 150 that has been requested for the premium service, and is requested to confirm whether the QoS is provided. (S220).

In the present invention, the QoS information is information for providing a premium service for transmitting the content selected by the PSS 110 in high quality, and includes a bandwidth, a delay time, an allowable loss rate, and the like, required for transmitting the selected content in high quality. .

The premium service providing server 140, which has been requested to check whether the QoS is provided from the premium service application server 150, uses the received QoS information to transmit a resource allocation request message including QoS parameters in the portable Internet network 120 in the PSS. 110 and the premium service application server 150 by sequentially transmitting to a number of lower network equipment, ACR (124), RAS (122) of the IP network 130, the network equipment providing a wired path for transmitting and receiving data A resource allocation task is requested (S230).

A plurality of subordinate network devices, ACR 124, RAS 122, etc. of the IP network 130 that have been requested to allocate resources from the premium service providing server 140 analyze the received QoS parameters to satisfy the requested QoS. It is determined whether a wired path for data transmission and reception between the PSS 110 and the premium service application server 150 can be established, and the determination result is sent to the premium service providing server 140 as a response message for the resource allocation work request. The premium service providing server 140 receives it. At this time, the plurality of lower network equipment, the ACR 124, the RAS 122, etc. of the IP network 130 that has been requested to allocate resources from the premium service providing server 140 may perform the PSS 110 that satisfies the requested QoS. And a wired path for data transmission and reception between the premium service application server 150 and the premium service application server 150 may be transmitted to the premium service providing server 140 as a response message for the resource allocation work request, and the resource allocation work may be performed. Perform (S240).

In the present invention, the QoS parameter transmits selected content to a wired resource such as a line on a wired path or a bandwidth of a network device for transmitting and receiving data between the PSS 110 and the premium service application server 150 in the portable Internet network 120. Resource reservation parameters for reserving for use in the server and priority parameters for preferentially transmitting the selected content. In addition, in the present invention, the resource allocation operation corresponds to each device according to resource reservation parameters and priority parameters included in the QoS parameters of a plurality of subordinate network devices, the ACR 124, the RAS 122, and the like of the IP network 130. It is to set the bandwidth for the content and to set the priority for the content.

The premium service providing server 140 receiving the response message for the resource allocation work request transmits a result of whether the QoS is provided to the premium service application server 150 (S250).

The premium service application server 150 receiving the result of whether the QoS is provided provides a premium service by transmitting the corresponding content to the PSS 110 using the portable Internet network 120 when resource allocation is performed. At this time, in the process of transmitting the content to the PSS 110 by the premium service application server 150, high network devices in the IP network 130 of the portable Internet network 120, ACR 124, RAS 122, etc. Delivers the content according to the set QoS parameter. Through this, the QoS for the corresponding content is guaranteed to the wired end (except the wireless end between the PSS 110 and the RAS 122) in the path transmitted from the premium service application server 150 to the PSS 110. In addition, the PSS 110 periodically transmits a connection maintenance message to the premium service providing server 140 by using a connection maintenance message transmission program while receiving the premium service, and when the transmission and reception of content starts, the premium service providing server ( 140 determines whether the PSS 110 is abnormally terminated by checking whether the connection maintenance message is periodically transmitted from the PSS 110 (S260).

While providing a premium service to the PSS 110, it is determined whether a connection maintenance message transmitted from the PSS 110 is periodically received (S270), and a connection maintenance message is periodically received from the PSS 110 during content transmission. When the premium service for the content ends, the premium service application server 150 notifies the premium service providing server 140 of the termination of the premium service, and the premium service application server 150 transmits a resource release control signal to the mobile Internet network. The lower network devices, the ACR 124, the RAS 122, and the like in the IP network 130 of 120 are controlled to delete the set QoS parameter and release the allocated resource (S280).

Meanwhile, while providing a premium service to the PSS 110, it is determined whether the connection maintenance message transmitted from the PSS 110 is periodically received (S270), and if it is not received within a predetermined time, the PSS 110 has abnormally terminated. The determination is made, the premium service application server 150 is notified of the end of the service, and the PSS 110 is connected to the lower network devices, the ACR 124, the RAS 122, and the like in the IP network 130 of the portable Internet network 120. A request is made to release the resources that have been allocated to the controller to delete the QoS parameter and release the allocated resources (S290).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, in the premium service providing system using the portable Internet network, the loss of network resources caused by abnormal termination of the portable Internet terminal can be solved, and the resolution of the mobile internet network can be solved through the resolution of the network resource loss. There is an effect that can efficiently use the radio resources without waste.

Claims (10)

A PSS (Portable Subscriber Station) that receives a premium service for transmitting high-quality multimedia content with guaranteed quality of service (QoS) and periodically transmits a connection maintenance message to a premium providing system, and generates the content and responds to the request of the PSS. A premium service application server, a radio access station (RAS), an access control router (ACR), and an IP network that provides the premium service for transmitting the content by guaranteeing the QoS by requesting resource allocation by generating QoS information according to the request. In the premium service providing system for providing a premium service in a high-speed portable Internet (HPi: High Speed Portable Internet or WiBro: Wide Broadband Internet) to provide a resource allocation and route to provide the premium service to the PSS , Creates a QoS parameter using the QoS information received from the premium service application server and requests a resource allocation operation on a path for transmitting data from the premium service application server to the personal subscriber station, and the premium service The premium service providing server that checks the connection state of the PSS using the connection maintenance message received from the PSS and releases the network resources allocated to the PSS in which abnormal termination occurred during the provision of. Premium service providing system comprising a. The method of claim 1, The PSS is a premium service providing system, characterized in that when the request for the premium service, the premium service is provided after downloading and installing a connection maintenance message transmission program from the premium service providing server. The method of claim 2, The connection maintenance message transmission program periodically checks whether the PSS is connected by sending the connection maintenance message to the premium service providing server. The method of claim 1, When the PSS requests the premium service by accessing the premium service application server, the premium service providing server determines whether the connection maintenance message transmission program is installed in the PSS, and if not, the connection maintenance message transmission program. Premium service providing system, characterized in that to download and install to the PSS. The method of claim 1, The premium service providing server determines that the PSS terminates abnormally when the connection maintenance message does not arrive within a predetermined time from the PSS during the provision of the premium service. Premium service providing system, characterized in that to release the network resources allocated to provide. The method of claim 5, The abnormal termination may include one or more of when the PSS is discharged and the PSS is turned off, when the PSS is moved out of the signal receiving range of the portable Internet network, and when the PSS cannot be received due to a defect of the PSS. Premium service providing system, characterized in that the case of stopping the provision of the premium service by the cause. A PSS (Portable Subscriber Station) that receives a premium service for transmitting high-quality multimedia content with guaranteed quality of service (QoS) and periodically transmits a connection maintenance message to a premium providing system, and generates the content and responds to the request of the PSS. A premium service application server providing the premium service for transmitting the content by guaranteeing the QoS, and checking the connection state of the PSS by using the connection maintenance message received from the PSS while providing the premium service. It comprises a premium service providing server, a radio access station (RAS), an access control router (ACR), and an IP network for releasing the allocated network resources for the generated PSS, and allocates resources to provide the premium service to the PSS. And to provide a path For internet at (HPi:: High Speed Portable Internet, or WiBro Wide Broadband Internet), according to a premium service providing method for providing a premium service, (a) receiving a request for providing the premium service from the PSS; (b) determining whether a connection maintenance message transmission program is installed in the PSS, and if not, downloading and installing the connection maintenance message transmission program; (c) determining whether the PSS is abnormally terminated by performing the resource allocation for the transmission of the content, and checking whether the connection maintenance message received from the PSS is periodically received when the transmission of the content starts. ; And (d) If the connection maintenance message transmitted from the PSS is not received within a predetermined time, it is determined that the PSS has abnormally terminated, and notifies the premium service application server of the termination of the service, and the portable Internet network is assigned. Controlling the freed resources Premium service providing method comprising a. The method of claim 7, wherein in the step (d), the portable Internet network, And a plurality of network devices in the RAS, the ACR and the IP network, wherein the plurality of network devices in the RAS, the ACR and the IP network perform the resource allocation operation using the QoS parameters. And generating a response message to the resource allocation request. The method of claim 8, The plurality of network equipment in the RAS, the ACR and the IP network, Determining whether the content can be transmitted to satisfy the QoS by using the QoS parameter, performing the resource allocation operation according to the determined result, and generating a response message for the resource allocation request. How to Offer Premium Services. The method of claim 9, The plurality of network equipment in the RAS, the ACR and the IP network, If the content can be transmitted to satisfy the QoS, the resource allocation operation is performed by setting a bandwidth and priority for transmitting the content according to the QoS parameter.

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