KR100931828B1 - Service grade management system and method of application provided in portable internet terminal - Google Patents

Abstract

The present invention relates to a service grade management system in a portable internet, and more particularly, to a service grade management system of an application program provided in a portable internet terminal. To this end, the present invention provides a service grade management system for an application provided in a portable Internet terminal, and selects desired data traffic attribute information and maximum pseudo bandwidth information according to the application program, and selects the selected data traffic attribute information and A portable internet terminal for transmitting maximum pseudo bandwidth information to a base station; And a base station for allocating a bandwidth of an application program provided to the portable internet terminal by using the data traffic attribute information and the maximum pseudo bandwidth information transmitted by the portable internet terminal. Provide a program's service level management system.

WiBro, WiMax, Class of Service, QoS, Mobile Internet

Description

System and method for managing service grade of application provided in portable internet terminal {A SYSTEM FOR MANAGING SERVICE QUALITY OF APPLICATIONS PROVIDED TO A PORTABLE SUBSCRIBER STATION}

The present invention relates to a service grade management system and method in a portable internet, and more particularly, to a service grade management system and method for an application provided in a portable internet terminal.

The service grade according to the conventional IEEE 802.16 standard is classified as shown in Table 1 below.

<IEEE 802.16 Class of Service>

In order to support the mobility of WiBro / WiMax, handover at 60Km / h or more speed is defined, so the service items of the above five levels are defined to support the Quality of Service (QoS) so that a minimum performance degradation occurs.

UGS (Unsolicited Grant Service): A service that guarantees a fixed transmission rate for a certain period of time and requires a transmission delay condition. This class of service is required for services such as Voice over IP or VoIP.

ERT-VR (Extended Real-Time Variable Rate) service: A service class designed for VoIP. It requires a transmission delay condition and guarantees resources according to requests during the service.

RT-VR (Real-Time Variable Rate) service: A service that requires a transmission delay condition and guarantees resources during a corresponding service. This service performs data scheduling by real-time polling of bandwidth requests. Service class suitable for video / audio streaming.

Non-Real-Time Variable Rate (NRT-VR) service: Guarantees minimum transmission speed and does not allow packet loss. It allows transmission delay and guarantees resources during the service. It is suitable for services such as file transfer, multimedia mail and chat.

-BE (Best Effort) service: This service allows transmission delay and does not guarantee resources during the service. It is suitable for web browsing and email.

The above service class is the service class proposed by the 802.16 standard. Their implementation depends on the vendor, and the quality of service can be determined by the implementation method.

A technology related to class of service classification according to the conventional IEEE 802.16 standard is a classifier of a convergence sublayer (CS).

Convergence Sublayer (CS) is a protocol layer that connects IEEE 802.16 Medium Access Control (MAC) and higher level applications, and includes the role of classifying packets delivered from applications. Packet classification is the operation of recognizing individual packet data as a continuous flow and determining the grade of the quality of service of the flow. Quality of service is classified according to predetermined rules. The rules can be decided by the network operator or the device manufacturer based on the suggestions in the standard.

Quality of Service (QoS) occurs when dividing limited resources, and when there is a shortage of resources provided than required resources, a problem of deterioration of service quality occurs. In order to maintain such a quality of service, a myriad of researches and progresses have been made in wired networks. However, the development of wired transmission technology has provided more resources than required by providing wide-area wired transmission channels, so that the problem of quality of service does not come to reality.

However, since wireless resources are inferior to wired resources, are not sufficient, and are shared by many, quality of service problems have been added to the wireless network. However, until now, wireless networks have used the circuit method (Code Division Multiple Access, W-CDMA: Wideband CDMA, GSM: Global System for Mobile Communication) that mobile Internet service support for voice communication. It is true that there was no. In other words, the connected user cannot access when there is no resource to be used by Call Admission Control, and since the resource is used only within the range limited by the circuit method after access, the service quality problem (QoS) The focus was not on resource allocation but on maintaining channel state after access and how to support mobility.

However, IEEE 802.16 portable Internet technology uses Orthogonal Frequency Division Multiplexing Access (OFDMA), in which multiple access control (MAC) allows flexible resource allocation, which makes the quality of service required by users more realistic. In other words, when a user connects to a network using a specific application and obtains a connection ID, the resources used by the application can be flexibly requested. This dynamic resource allocation method causes severe resource contention when all users request more resources, which can cause congestion and serious data degradation due to the transmission of important data. . In particular, 802.16 is oriented toward the IP network. In the case of TCP, which is a typical transport protocol of the IP network, saturation of the network is inevitable because resource requests are continuously made until the network is saturated. In order to solve this problem, service class classification is to determine the importance of data to be transmitted and to allocate resources required for the service according to the importance.

However, the conventional service class classification techniques use the definition and method of the service class classification proposed in the standard, and most of them are implemented by the network operator. However, the subject that determines the level of service is determined by the user who wants to receive the service, not by the network provider who provides the service, but there is no clear way to determine the problem. Therefore, there is a need for a method of determining a service level by a user because the quality of a wireless service directly affects a user due to the aforementioned limitation of radio resources.

In order to solve the above problems, the present invention improves user satisfaction by directly selecting a service class classification, and transfers the selected information to a base station to find an optimal solution of the network in the computing unit of the base station. It is an object of the present invention to provide a service level management system and method for an application program provided in an Internet terminal.

In order to achieve the above object, the present invention provides a service grade management system of an application provided in a portable Internet terminal,

A mobile Internet terminal for selecting desired data traffic attribute information and maximum pseudo bandwidth information according to the application program and transmitting the selected data traffic attribute information and maximum pseudo bandwidth information to a base station, wherein the base station includes: Provided is a service level management system for an application provided in the portable Internet terminal, characterized in that the application is provided to the portable Internet terminal with the bandwidth allocated using the data traffic attribute information and the maximum pseudo bandwidth information.

The service class management system transmits the connection ID information of the application, name information of the application, and the like to the user through the portable Internet terminal according to the selected data traffic attribute information and the maximum pseudo bandwidth information. And at least one of bandwidth information used by an application and pseudo usage fee information of the application.

The data traffic attribute information is displayed in color on the screen of the portable Internet terminal.

The maximum pseudo bandwidth information is displayed in the form of a size box on the screen of the portable Internet terminal, and the size box is characterized by displaying the bandwidth of the currently used application for the maximum pseudo bandwidth selected by the user.

The data traffic attribute information needs to be greater than or equal to a specific bandwidth to achieve user satisfaction, and an inelastic service that does not increase even when supporting more bandwidths, and a fully elastic service that satisfies as the transmission bandwidth increases within a certain limit. (Perfectly elastic service), and between the inelastic service and the fully elastic service, characterized in that it is any one of the partial elastic service (Partially elastic service) with the minimum satisfaction even in narrow bandwidth.

The data traffic attribute information and the maximum pseudo bandwidth information may be selected by a user of the portable Internet terminal or by an automated program with a simple setting of the user. The automated program may automatically select the data traffic attribute information and the maximum pseudo bandwidth information according to a user-specific characteristic and a selected plan.

The portable Internet terminal used by the portable Internet terminal may be a WiBro / WiMAX network using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme.

In addition, in order to achieve the above object, the present invention provides a service grade management system for an application provided from a base station to a portable Internet terminal, the desired data traffic attribute information and maximum pseudo bandwidth information from the portable Internet terminal according to the application program. And a base station for allocating a bandwidth by using the traffic attribute information and the maximum pseudo bandwidth information and providing the application program to the portable Internet terminal with the bandwidth, wherein the data traffic attribute information and the maximum pseudo bandwidth are allocated. The bandwidth information is selected by the user of the portable Internet terminal and is delivered to the base station provides a service grade management system for an application program provided to the portable Internet terminal.

The base station uses the data traffic attribute information and the maximum pseudo bandwidth information as a measure of billing for the user of the portable Internet terminal, wherein the measure of the charge is at least one of the data traffic attribute information and the maximum pseudo bandwidth information. It is characterized by being assigned to the weight.

In addition, in order to achieve the above object, the present invention provides a service grade management method for an application provided in a portable Internet terminal, the desired data traffic attribute (Attributes) information and the maximum according to the application using the portable Internet terminal Selecting pseudo bandwidth information; Transmitting the selected data traffic attribute information and maximum pseudo bandwidth information to a base station; And receiving, by the base station, the application program with a bandwidth allocated using the data traffic attribute information and the maximum pseudo bandwidth information. do.

The service class management method may include connection ID information of the application, name information of the application, and the application to the user through the portable Internet terminal according to the selected data traffic attribute information and maximum pseudo bandwidth information. The method may further include providing at least one of bandwidth information used by the program and pseudo fee information of the application.

The data traffic attribute information is displayed in color on the screen of the portable Internet terminal.

The maximum pseudo bandwidth information is displayed in the form of a size box on the screen of the portable Internet terminal, and the size box is characterized by displaying the bandwidth of the currently used application for the maximum pseudo bandwidth selected by the user.

The data traffic attribute information needs to be more than a certain bandwidth to achieve user satisfaction, and an inelastic service that does not increase even if it supports more bandwidth, and within a certain limit, a fully elastic service (satisfied with an increase in transmission bandwidth). Perfectly elastic service), and between the inelastic service and the perfect elastic service, characterized in that it is any one of the partial elastic service (Partially elastic service) with the minimum satisfaction even in narrow bandwidth.

The data traffic attribute information and the maximum pseudo bandwidth information are selected by a user of the portable Internet terminal or by an automated program with a simple setting of the user. The automated program may automatically select the data traffic attribute information and the maximum pseudo bandwidth information according to a user-specific characteristic and a selected plan.

In addition, the service provided by the base station according to the maximum pseudo bandwidth set by the user and the pseudo rate provided to the user for the service can be used as the basis for the service charge that the user has to pay for the service use. do.

In addition, to achieve the above object, the present invention provides a computer-readable recording medium recording a program for executing any one of the service class management methods of the application program provided in the above-described portable Internet terminal.

As described above, the effects of the service grade management system and method of the application provided in the portable Internet terminal according to the present invention can be largely divided into two aspects, a user and a supplier.

First, from the user's point of view, the user can set options such as performance and price, and can receive services optimized for the current network according to the setting. In addition, a user who wants to receive a premium service can receive a service that is clearly differentiated from other users, and the service quality can be increased by setting the service level by the user. In addition, various options are available by providing consumers with price control methods.

On the other hand, from a supplier's point of view, network utility can be maximized and contention of competing resources can be fair. In particular, in the pricing policy, the differentiated pricing policy not only yields higher profits, but also provides a basis for the user to set a price for the service provided by pay-as-you-go.

The terminology used in the present invention is a general term that is currently widely used as possible, but in certain cases, the term is arbitrarily selected by the applicant, in which case the meaning of the term is described in the detailed description of the invention. It should be understood that the present invention in terms of terms other than these terms.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention that can specifically realize the above object, the present invention is not limited or limited by the above embodiments.

1 is a block diagram of a network system having a service grade management function according to an embodiment of the present invention. Referring to FIG. 1, the network system is a base station that is wirelessly connected to the at least one portable internet terminal 100 and the portable internet terminal 100, which can wirelessly access the Internet anytime and anywhere while providing a communication service. And a public communication network 300 (for example, a public switched network (PSTN) or an Internet network, etc.) connected to the base station 200 and connected to the information providing system.

The portable Internet network in which the present invention can be used may be composed of a wired Internet public network and a wireless Internet subscriber network including a portable Internet terminal. Various types of QoS are already provided in the existing wired Internet public network. Accordingly, the present invention provides a wireless Internet subscriber network that is newly combined with a conventional wired Internet public network, which is already provided with QoS, so that an application program executed in a portable Internet terminal in a portable Internet network having a structure in which a wired Internet network and a wireless Internet network are combined. Of a service grade management system and method.

The present invention may be a system and method for managing a service grade of an application program executed in a portable Internet service supporting portable Internet terminal provided through an Orthogonal Frequency Division Multiple Access (OFDMA) WiBro / WiMAX network. . However, it is apparent to those skilled in the art that the technical idea of the present invention is not limited to the WiBro / WiMAX system, which is an example of a portable Internet system.

The wireless internet subscriber network may include a portable subscriber station (PSS) 100, a base station (RAS) 200 that transmits and receives voice signals and data wirelessly with the portable internet terminal. In addition, the wireless Internet subscriber network relays a voice signal and data transmitted and received through the base station 200 to another network device in the subscriber network or a network device of another network connected through a public network (ACR: Access Control Router). ) May be included.

The service grade management system of the application provided in the portable Internet terminal according to the embodiment of the present invention is applied to the service grade management to the entire portable Internet network including the wireless Internet subscriber network configured as described above, the portable Internet terminal, the base station Or a Quality Manager (QM) for distributing QoS policies to the control station. The quality policy manager transmits QoS policy information to each network device such as ACR, RAS, PSS, etc. to determine the QoS policy and apply the determined QoS policy to the entire portable Internet network. The detailed configuration method of the quality policy manager will be omitted in the present invention. The reason for this is that the present invention has a technical feature for the user to actively determine the service grade through the mobile Internet terminal 100.

In the portable Internet according to the present invention, the portable Internet terminal 100 may be configured to include a classifier, which classifies the data transmitted in a single datagram called a packet into a continuous flow. It performs the operation of classifying as. Another role of the classifier is to classify the class of service of packets classified into flows. Of these two tasks, the former is a mechanically repeated task that classifies conditions that meet predetermined rules, and can be implemented as a program or hardware. However, the latter is difficult to implement as a program or hardware by intellectual judgment. Conventionally, in order to implement the function of the latter (service class classification), the service is classified by type to suggest that about which service should be given what class. That is, the service grade is determined in advance for each service provided to the user by the operator.

However, it is difficult to apply consistent rules because the service grade, that is, the quality of service, depends on the user's purpose.

The present invention improves user satisfaction by directly selecting a user's intellectual decision such as class of service without depending on a program, and delivers the selected information to the base station to find the optimal solution of the network in the computing unit of the base station. We propose a method for charging based on the configured pseudo bandwidth and the amount of packets used.

2 shows a service grade management program of the portable Internet terminal according to an embodiment of the present invention. General-purpose operating programs such as Windows support wireless network connection programs. An object of the present invention is to provide a service quality management program 400 to a wireless network management program used through a portable Internet terminal. Referring to FIG. 2, usage information of an application program currently connected to the Internet through the portable Internet (CID (Connection ID) 410, program name 420, bandwidth currently used, 430, and usage price 440). , Data traffic attribute 450). The usage information can be viewed by clicking the network display icon 460 on the screen of the portable Internet terminal.

This information is determined by the attributes set by the user. The attribute may be expressed in a different color according to the classification for each attribute of the data traffic shown in FIG. 3.

3 shows classification by attribute of data traffic according to an embodiment of the present invention. Referring to FIG. 3, classification 500 of attributes of data traffic according to an embodiment of the present invention is as follows.

a) Inelastic service (510): A service such as VoIP that does not reach utility at all unless it reaches a specific transmission bandwidth, and does not feel better at higher transmission bandwidths. In the case of inelastic services, the user cannot set the price as a constraint, and the price supplied by the supplier acts as a limiting factor.

b) Perfectly elastic service (520): A service such as FTP has more transmission bandwidth, which increases its utility, but once it reaches a certain level, it no longer increases its utility according to the law of marginal utility.

c) Partially elastic service (530): A VOD service, such as a VOD service, does not feel utility until it reaches a specific transmission bandwidth. Above that, as the bandwidth increases, the utility also increases. The law of marginal utility also applies here.

In addition, classification of data traffic attributes is based on five service classes proposed by the standard: Unsolicited Grant Service (UGS), Extended Real-Time Variable Rate (ERT-VR), Real-Time Variable Rate (RT-VR), and NRT-VR. (Non-Real-Time Variable Rate) and BE (Best Effort) services, and may be expressed in different colors according to the classification of data traffic.

The user determines the desired data traffic attribute and the maximum pseudo bandwidth required by the application through the service quality management program provided to the portable Internet terminal. The data traffic attribute may be displayed in color on the screen of the portable Internet terminal, and the maximum pseudo bandwidth may be displayed in the size of a square box on the screen of the portable Internet terminal. The method for indicating the data traffic attribute and the maximum pseudo bandwidth is an embodiment, and the present invention is not limited thereto.

When the data traffic and the maximum pseudo bandwidth are selected according to the key input information through the portable Internet terminal, the user can make an optimized selection by delivering at least one of the information shown in FIG. 2 to the user according to the selected information. To help. The information represented in FIG. 2 is as follows.

1. CID (Connection ID) 410: A circuit identification number for transmitting data through the portable Internet. It is a unit that the device recognizes and is displayed to show the relationship between this and the application that the user recognizes.

2. Application (program name) 420: The name of the application being used by the user to display information so that it can know which program is currently using the network.

3. Bandwidth 430: The bandwidth currently being used by the application. The maximum value may be limited according to the user's setting.

4. Price 440: This information is expressed as a usage fee per unit time or a pseudo rate corresponding thereto. This information helps the user to set data traffic attributes.

5. Attributes 450: Attribute information may be set to an attribute of a traffic represented by color and a pseudo bandwidth represented by a size. The part filled in the size box expresses the bandwidth used by the current user in proportion to the maximum pseudo bandwidth set by application.

The service grade management function proposed in the present invention may be seen as an unreasonable request to understand and use the actual network theory to the general user. However, the information such as price and maximum pseudo bandwidth is information that can be understood by the general public, thereby providing information for making optimal choices and improving the quality of service that users feel through this setting. The included classifier may provide intelligent decision clues for quality determination of services.

Of course, the implementation of these functions is possible by user configuration, but also by automated programs. Allow service providers to automatically set appropriate settings based on user-specific features and selected pricing schemes based on the methods mentioned above. That is, the data traffic attributes and the maximum pseudo bandwidth preset by the service provider are automatically selected according to the user-specific characteristics and the selected plan without the user's selection. The automatically selected attributes can be presented back to the user with information such as price and bandwidth that the user feels directly to help the user understand the quality of service they are currently using.

According to another embodiment of the present invention, a method for determining bandwidth allocation in order to provide an optimal quality of service that can be satisfied by all users belonging to a base station by using properties set by a user (data traffic property, maximum pseudo bandwidth) It is about.

Equation 1 below is a solution to solve the network optimization problem used in the field of network theory. When the degree of congestion of the current network (in lambda) is entered into the derivative of the inverse function of the utility equation of FIG. Shows that we can find the optimal solution of the bandwidth r needed.

In Equation 1, U is determined by the color of the attribute determined by each user. The color determines inelastic service, full elastic service, and partial elastic service, respectively. The size of the attribute (box size) determined by the user selects the slope of the graph corresponding to each service. The larger the box is selected, the higher the satisfaction with the same bandwidth. When the user transmits the attribute information set by the user to the base station, the base station can determine the bandwidth of each application that can optimize the network utility by solving the attribute information delivered by the users in the equation (1). By using this, the base station can not only solve resource contention problem in terms of maximizing network utility, but also generate higher profits by differentiating service.

When charging through the present invention, the price weight (Ws) varies according to the color of the selected attribute, and the satisfaction weight (Wu) varies according to the size of the selected box. The price weight has the largest value for inelastic services and the smallest for fully elastic services. The larger the box, the higher the satisfaction function, while the smaller the box, the downward. When charging through this system and method, the price is set in the form of Equation-2.

The service class management method in the portable Internet according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media 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 above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from such description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

1 is a block diagram of a network system having a service grade management function according to an embodiment of the present invention.

2 is a view showing a service level management program of the portable Internet terminal according to an embodiment of the present invention.

3 is a diagram illustrating classification of attributes of data traffic according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: portable internet terminal 200: base station

300: public communication network 400: service grade management program

500: Classification of data traffic by attributes

Claims (20)

In the service grade management system of the application provided in the portable Internet terminal, A mobile Internet terminal for selecting desired data traffic attribute information and maximum pseudo bandwidth information according to the application program and transmitting the selected data traffic attribute information and maximum pseudo bandwidth information to a base station, And the application program is provided to the portable internet terminal with a bandwidth allocated by the base station using the data traffic attribute information and the maximum pseudo bandwidth information. The method of claim 1, The service class management system transmits the connection ID information of the application to the user of the portable Internet terminal through the portable Internet terminal according to the selected data traffic attribute information and the maximum pseudo bandwidth information, and the name of the application program. And at least one of information, bandwidth information used by the application program, and usage fee information of the application program. The method of claim 1, The data traffic attribute information is displayed on the screen of the portable Internet terminal in a service grade management system for an application provided in the portable Internet terminal. The method of claim 1, The maximum pseudo bandwidth information is displayed in the form of a size box on the screen of the portable internet terminal, and the size box displays the bandwidth of the currently used application for the maximum pseudo bandwidth selected by the user of the portable internet terminal. Service grade management system of the application provided to the portable Internet terminal. The method of claim 1, The data traffic attribute information needs to be greater than or equal to a specific bandwidth to achieve user satisfaction, and an inelastic service that does not increase even when supporting more bandwidths, and a fully elastic service that satisfies as the transmission bandwidth increases within a certain limit. (Perfectly elastic service), and between the inelastic service and the fully elastic service of the application provided in the mobile Internet terminal, characterized in that any one of the partial elastic service (Partially elastic service) with the minimum satisfaction in a narrow bandwidth. Class of Service Management. The method of claim 1, And the data traffic attribute information and the maximum pseudo bandwidth information are selected by a user of the portable internet terminal or by an automated program. The service grade management system of the application provided in the portable internet terminal. The method of claim 6, And the automated program automatically selects the data traffic attribute information and the maximum pseudo bandwidth information according to the user-specific characteristics and the selected plan. The method of claim 1, And a portable Internet terminal used by the portable internet terminal is a WiBro / WiMAX network of an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. In the service grade management system of the application provided by the base station to the portable Internet terminal, Receive desired data traffic attribute information and maximum pseudo bandwidth information according to the application program from the portable Internet terminal, allocate bandwidth using the traffic attribute information and maximum pseudo bandwidth information, and the application program is used as the bandwidth. It is configured to include a base station provided to the mobile Internet terminal, And the data traffic attribute information and the maximum pseudo bandwidth information are selected by a user of the portable internet terminal and transferred to the base station. The method of claim 9, And the base station uses the data traffic attribute information and the maximum pseudo bandwidth information as a measure of billing for the user of the portable internet terminal. The method of claim 10, The billing scale is determined by weighting at least one of the data traffic attribute information and the maximum pseudo bandwidth information. In the service class management method of the application provided in the portable Internet terminal, Selecting desired data traffic attribute information and maximum pseudo bandwidth information according to the application program using the portable internet terminal; Transmitting the selected data traffic attribute information and maximum pseudo bandwidth information to a base station; And And receiving, by the base station, the application program with the bandwidth allocated by using the data traffic attribute information and the maximum pseudo bandwidth information. The method of claim 12, wherein the service class management method is According to the selected data traffic attribute information and the maximum pseudo bandwidth information to the user of the mobile Internet terminal via the mobile Internet terminal, the connection ID information (Connection ID information) of the application, the name information of the application, the application program And providing at least one of bandwidth information being used and usage fee information of the application. The method of claim 12, The data traffic attribute information is displayed in color on the screen of the portable Internet terminal, the service grade management method of the application provided in the portable internet terminal. The method of claim 12, The maximum pseudo bandwidth information is displayed in the form of a size box on the screen of the portable internet terminal, and the size box displays the bandwidth of the currently used application for the maximum pseudo bandwidth selected by the user of the portable internet terminal. Service class management method of the application provided in the portable Internet terminal. The method of claim 12, wherein the data traffic attribute information is The data traffic attribute information needs to be greater than or equal to a specific bandwidth to achieve user satisfaction, and an inelastic service that does not increase even when supporting more bandwidths, and a fully elastic service that satisfies as the transmission bandwidth increases within a certain limit. (Perfectly elastic service), and between the inelastic service and the fully elastic service of the application provided in the mobile Internet terminal, characterized in that any one of the partial elastic service (Partially elastic service) with the minimum satisfaction even in a narrow bandwidth. How to Manage Class of Service. The method of claim 12, And the data traffic attribute information and the maximum pseudo bandwidth information are selected by a user of the portable internet terminal or by an automated program. The method of claim 17, And the automated program automatically selects the data traffic attribute information and the maximum pseudo bandwidth information according to the user-specific characteristics and the selected plan. The method of claim 12, The mobile Internet terminal used by the mobile Internet terminal is a service grade management method for an application running on a mobile Internet terminal, characterized in that the Orthogonal Frequency Division Multiple Access (OFDMA) WiBro / WiMAX network. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 12 to 19.

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