KR101632623B1 - Method for Controlling QoS Based on Subscriber in WiBro System, Mobile Communication System therefor - Google Patents

Abstract

The present invention relates to a subscriber-based QoS control method in a WiBro system and a mobile communication system for the same, and provides a subscriber-based QoS service using an existing WiBro system without introducing an additional system in a WiBro system. It can be expected that the charge system can be applied in various ways according to the characteristics of the star.

Description

[0001] The present invention relates to a subscriber-based QoS control method and a mobile communication system for the same in a WiBro system,

The present invention relates to a subscriber-based Quality of Service (QoS) control method and a mobile communication system therefor in a WiBro system. More particularly, the present invention relates to a method and apparatus for controlling indoor and outdoor service using a variety of portable terminals such as a notebook computer, a PDA, In a WiBro system capable of accessing the Internet and accessing various information and contents in a mobile environment of environment, gait level, and medium / low mobile level, a subscriber in a WiBro system for performing priority- Based QoS control method and a mobile communication system therefor.

In the information age, which is integrated into the ubiquitous society, access to various devices connected to the network has a great advantage that it can be used anytime and anywhere through unlimited wired / wireless connection, and as a core infrastructure for the basic concept of ubiquitous wireless broadband service Is attracting attention. As a wireless broadband service, WiBro is attracting attention as a new technology that complements the disadvantages of mobile communication and wireless LAN.

WiBro is short for Wireless Broadband Internet. It refers to broadband internet service which can use various information and contents by using a portable terminal to access the Internet at high speed (about 1Mbps) at anytime and anywhere during stopping and moving. In other words, it is a concept to expand the indoor wired high-speed Internet service so that it can be used outdoors while on the move. This is a new service that guarantees continuous wireless Internet service and can use wireless Internet more cheaply by using the 2.3 GHz frequency band within a cell radius of 1 Km and a minimum of 60 Km / H when moving. Currently, it has been developed to support up to 70 Km / H mobility and 1 Mbps transmission rate per subscriber, and when it is commercialized, it can achieve mobility of 100 Km / H and transmission speed of 3 Mbps.

The WiBro system provides mobility of 60 Km / h and provides a downlink transmission rate of 24 Mbps, and an IP (Internet Protocol) -based system capable of providing a downlink transmission rate of 50 Mbps when a multiple input multiple output (MIMO) Wireless data system.

In addition, the WiBro system uses a frequency band of 2.3 GHz and applies Time Division Duplex (TDD) as a duplex scheme and a Multiple Access scheme as a frequency spectrum to effectively use the allocated frequency spectrum. Uses Orthogonal Frequency Division Multiple Access (OFDMA).

On the other hand, in the WiBro system, QoS classes are classified into Unsolicited Granted Service (UGS), Real Time Variable Rate (RT-VR), Non-RT (VR), BE (Best Effort), eRT- It is defined in this specification. The QoS class is applied to each service flow and the QoS class to be applied when the service flow is generated is determined. A UE may have a plurality of service flows at the same time, and QoS classes of a plurality of service flows depending on one UE may be different from each other. That is, even if the terminal has one service flow, it can request and use a resource other than the resource allocated to the service flow it has. Actual function operation operates in the RAS corresponding to the base station, and currently only the BE is used by default.

The WiBro system needs to issue appropriate commands to the RAS (Access Control Router) in the ACR (Access Control Router) in order to properly operate the QoS for the above five classes. There is no optimized standard for this. According to the standard, it is necessary to introduce an additional policy server.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a subscriber based QoS control method in a WiBro system for providing a subscriber based QoS service using a conventional WiBro system without introducing an additional system in the WiBro system There is a technical problem in providing a mobile communication system for this.

According to an aspect of the present invention, there is provided a mobile communication system for controlling a subscriber-based QoS in a WiBro system, which includes: a subscriber- The service profile ID is set up / down and a QoS parameter set of the stored service profile ID is applied to open the service flow so that the service flow can be preferentially processed over the general call.

The mobile communication system of the present invention includes an authentication server for storing and managing a service profile ID so as to allocate a resource to a subscriber-based important call in advance, and transmitting the service profile ID to a control station; An element management apparatus for providing a new / change / delete function according to an operator command on a parameter for each service profile ID, and a parameter for each service profile ID in association with the element management apparatus and performing call processing according to a subscriber based QoS To the control station.

According to another aspect of the present invention, there is provided an authentication server including a receiver for receiving a service profile ID for subscriber-based QoS processing from a customer data distribution server, a storage for storing the received service profile ID, And a transmission unit for transmitting a value of a service profile ID in a Packet-Flow-Descriptor to a control station when the subscriber identified by the confirmation unit is a subscriber-based QoS allocation service subscriber.

In the authentication server, the transmission unit separates the uplink and the downlink with respect to the value of the service profile ID in the Packet-Flow-Descriptor, and transmits the uplink and downlink to the control station.

The authentication server receives the corresponding data from the customer data distribution server and operates the new / change / delete function when the data new / change / delete function for the subscriber-based QoS allocation service processing is generated in the authentication server.

The element management apparatus of the present invention comprises a first confirmation unit for confirming a service profile ID and a service class for each identified service profile ID, and a service class and a QoS parameter for each service profile ID Checking a QoS parameter set index to identify a QoS parameter set index for each service class and a service class and a QoS parameter set corresponding to the identified service profile ID And a third verification unit.

A subscriber-based QoS control method in a WiBro system of the present invention comprises the steps of: a) receiving and storing a service profile ID for subscriber-based QoS processing from a customer data distribution server; b) C) if the authentication server confirms that the received service profile ID is a subscriber-based QoS allocation service subscriber, if it is confirmed as a QoS allocation service subscriber, the service profile ID is provided to the control station; and d ) The control station stores the parameters for each received service profile ID and performs call processing according to the subscriber based QoS.

In step c), it is preferable that the authentication server separately transmits the uplink and the downlink to the value of the service profile ID in the Packet-Flow-Descriptor.

After step c) and before step d)

The element management apparatus may further include a step of confirming the service.

A method for checking a service of an element management apparatus for subscriber-based QoS control of a WiBro system of the present invention includes:

Confirms the service profile ID, sets a service class for each identified service profile ID, checks a service class and a QoS parameter set index for each set service profile ID, Checks the QoS parameter set index for each service class, and then checks the service class and QoS parameter set corresponding to the confirmed service profile ID.

As described above, the subscriber-based QoS control method and the mobile communication system for the WiBro system according to the present invention can provide a subscriber-based QoS service without introducing an additional system into the existing WiBro system, It is possible to apply various fee systems according to the characteristics of each QoS class.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a configuration of a mobile communication system according to the present invention. Fig. 1 will be described with reference to Figs. 2 and 3 showing an example of a service parameter ID structure.

The mobile communication system according to the present invention initiates a service flow as a service providing procedure for providing a service to a specific subscriber when authentication of a specific subscriber set as an important call is successful. In this case, the profile of the provided service is set as the ID. In this case, the service profile ID applied when opening the service flow is set up and down, and the QoS parameter set (QoS Parameter Set) to open the service flow so that it can be processed prior to the general call.

In more detail, when the authentication of the specific subscriber is successfully performed by the authentication server, the authentication server transmits the service profile ID to be applied to the control station in two up / down directions when the subscriber opens the service flow. As shown in FIG. 2, the uplink and the downlink are separately transmitted to the value of the service profile ID in the Packet-Flow-Descriptor. At this time, the code and the type may be set differently depending on the network environment or the transmission system.

As shown in FIG. 3, according to the authenticated subscriber, the service profile ID is divided into up and down and transmitted to the control station. Specifically, when the subscriber class is divided into the first class and the second class, the service profile IDs of 1 and 2 are set to the first class subscriber. At this time, the service profile 1 is set to up and the service profile 2 is set to down And up and down are transmitted to the control station.

In this case, QoS class is classified as UGS in case of first class subscriber and QoS class is classified as eRT-VR to second class subscriber. However, the QoS class is not necessarily transmitted as UGS because it is the subscriber of the first class, and the QoS class may be classified as eRT-VR depending on the situation. The minimum transmission speed of the transmission is 2M bps in case of up and 4M bps in case of down. In WiBro Infra, WiMAX Type of Data Delivery Services = 1 (UGS) or WiMAX Type of Data Delivery Services = 2 (eRT-VR ) Must meet the UL / DL minimum bit rate. Therefore, it is required to satisfy 2M bps in case of uplink and 4M bps in case of downlink.

And a QoS parameter set of a predetermined service profile ID is applied to open a service flow so that differentiated QoS is applied to other general subscribers. Thus, call processing can be performed in the order of higher priority.

To this end, the mobile communication system performs a service profile ID mapping function, a QoS parameter set management function of a service profile ID, and a first-level subscriber management function

Hereinafter, a case where the mobile communication system operates in a detailed configuration will be described with reference to FIG. 1

A mobile communication system for subscriber-based QoS control in a WiBro system includes a base station 200, a control station 300, an authentication server 400, and an element management apparatus 500 that perform communication with the mobile communication terminal 100 .

The mobile communication terminal 100 refers to a terminal that receives a portable Internet service from a portable Internet network. The mobile communication terminal 100 includes a low power RF (Radio Frequency) / IF (Intermediate Frequency) module and has a controller function, a Media Access Control (MAC) frame variable control function according to a radio wave environment, , An authentication and encryption function, and the like. Also, the mobile communication terminal 100 is equipped with a browser for accessing the Internet for accessing the portable internet network and using the portable Internet service. The mobile communication terminal 100 may be any one of a personal computer (PC), a notebook computer, a personal digital assistant (PDA), and a mobile communication terminal, A memory for storing a program, a microprocessor for executing and controlling a program, and the like. That is, the mobile communication terminal 100 can be any terminal as long as server-client communication is possible, and is a broad concept including all communication computing devices such as a notebook computer, a mobile communication terminal, and a PDA.

The subscriber accesses the portable Internet network through the terminal 100, and a process for providing subscriber based QoS service is performed after the subscriber is connected. That is, a personal computer (PC), a notebook, a personal digital assistant (PDA), and a mobile communication terminal owned by a subscriber, Accordingly, the base station receives the access information.

The base station 200 is means for receiving connection information from the terminal 100 and transmitting transmission information through the Internet or the like to the terminal 100. [ RAS (Radio Access Station), but is not limited thereto. The base station 200 may comprise a plurality of RASs and may include a controller function, an orthogonal frequency division multiple access (OFDMA) / time division duplex (TDD) packet scheduling and channel multiplexing function, a MAC frame variable control function , 50 Mbps high speed traffic real time control function, and handover function. Also, the mobile communication terminal 100 and the RAS have a 50 Mbps packet transmission / modulation / demodulation function, a high-speed packet channel coding function, and a real-time modem control function for data transmission.

When a subscriber connects through the terminal 100, information on the subscriber is transmitted to the base station, and the base station receives data transmission from the terminal 100.

The element management apparatus 500 is a management apparatus for managing a plurality of devices connected to a network and performs functions such as configuration management, fault management, performance management, and security management for the router. The element management device and the router perform management functions using Simple Network Management Protocol (SNMP) and Management Information Base (MIB) information, which are standard network management protocols.

The element management device manages the network topology by collecting MIB information about the network devices to be managed at the time of initial operation, and provides information necessary for configuration management, fault management, and performance management for the network devices existing on the network topology It is collected by using GetRequest / GetNextRequest command among SNMP Protocol Data Unit (PDU), or stored in DB by using Trap message received from network equipment, and analyzing the correlation between them, to provide.

The Trap message is an SNMP message generated and sent by the network device to notify the element management device of an event such as a failure, an alarm, or a status change in the network device. The element management apparatus has a function to add, change and delete a parameter for each service profile ID according to an operator command.

The control station may be configured to include a plurality of routers for interworking with the element management apparatus to store parameters according to service profile IDs and to process calls according to subscriber based QoS, and the routers include a plurality of base stations A handover function between a plurality of base stations 200, a packet routing function, an internet connection function (hereinafter, referred to as " And so on.

The control station performs priority processing based on the information of the terminal 100 transmitted to the base station 200, the information in the element management apparatus 500, and the information transmitted from the authentication server.

The authentication server 400 stores and manages information for class authentication of a subscriber. The authentication server 400 stores and manages a service profile ID so that resources can be allocated to a subscriber-based important call, And transmits it to the control station 300.

The authentication server 400 receives a service profile ID for subscriber-based QoS processing from a customer data distribution system (CDS) (not shown) at a reception unit and stores the received service profile ID in a storage unit.

The customer data distribution server is a customer information distribution system that transmits information requested by the customer to the mobile communication terminal 100 through the exchange.

On the other hand, the authentication server 400 confirms whether the subscriber-based QoS allocation service subscriber is the subscriber-based QoS allocation subscription service subscriber, and determines whether the subscriber-based QoS allocation subscription service subscriber is uplinked to the value of the service profile ID in the Packet- And transmits the downlink to the control station 300 separately.

For example, the parameters of the service profile ID are included in the Packet-Flow-Descriptor as shown in FIG. 2, and distinguish between the uplink and the downlink.

The service profile ID parameter disclosed in FIG. 3 is information for element management apparatus / control station assignment, and includes uplink / downlink information for each service profile ID, WiMAX type of data delivery service of a data transmission service, , Minimum Reserved Traffic Rate-UL / DL, and User Class.

On the other hand, WiBro Infra must satisfy UL / DL Minimum Bitrate for WiMAX Type of Data Delivery Services = 1 (UGS) or WiMAX Type of Data Delivery Services = 2 (eRT-VR)

In addition, the authentication server 400 receives the data from the customer data distribution server when a data new / change / delete function for subscriber-based QoS allocation service processing occurs, Change / delete function.

For example, the authentication server 400 also provides new / change / delete functionality for subscriber based QoS by MMC commands.

In addition, the authentication server sets User Class = 2 (eRT-VR operation) for the QoS of the general best-effort subscriber and sets User Class = 1 (UGS operation) for the QoS of the best-case subscriber in a special case . In this way, QoS class can be different according to service characteristics even in the highest priority subscriber, and call processing order can be different.

If the authentication server 400 does not receive subscriber-based QoS processing from the customer data distribution server, the existing processing method is maintained.

4 is a flowchart illustrating a subscriber-based QoS control method in a WiBro system according to the present invention.

First, the authentication server 400 of the mobile communication system receives and stores and manages a service profile ID for QoS processing of a subscriber based on a customer data distribution server (S101). Accordingly, the subscriber stores and manages the information necessary for authentication with the authentication server, so that the authentication procedure can proceed smoothly.

When the authentication server 400 authenticates the subscriber, it provides a service profile ID for the QoS allocation service subscriber (S103), thereby preparing for a call connection preferentially.

In step S103, as shown in FIG. 2, the authentication server transmits the uplink and the downlink separately to the value of the service profile ID in the Packet-Flow-Descriptor.

Then, the control station 300 stores parameters for each service profile ID and performs call processing according to the subscriber-based QoS (S105). This makes it possible to establish a call connection preferentially.

Although not shown, the element management apparatus 500 confirms the service profile ID, confirms the QoS parameter set index for each service class before step S103 and after step S105, Class and a set of QoS parameters. This is for the element management apparatus 500 to determine a subscriber who should preferentially make a call connection among a plurality of systems connected to the network.

Herein, the step of verifying the service profile ID is a step of determining a preferential call connection target by checking the service profile ID of the subscriber, and the step of confirming the QoS parameter set index according to the service class includes: A service class and a QoS parameter set index for each service profile ID set by the device 500 and determining whether call connection can be performed according to the QoS class.

Also, the step of the element management apparatus 500 confirming the service class and the QoS parameter set is a step of confirming the service class and the QoS parameter set corresponding to the service profile ID set through the element management apparatus.

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

As described above, the subscriber-based QoS control method and the mobile communication system for the WiBro system of the present invention can provide a subscriber-based QoS service using the existing WiBro system without introducing an additional system in the WiBro system. It is suitable for a subscriber having a variety of charge systems according to the characteristics of each QoS class.

Therefore, the present invention can be applied to a mobile communication system capable of using a WiBro. Also, it is possible to provide subscriber based QoS service without adding new equipment to existing system.

1 is a diagram showing a configuration of a mobile communication system according to the present invention,

2 is a diagram illustrating an example of a service parameter ID structure according to the present invention;

3 is a diagram showing another example of a service parameter ID structure according to the present invention,

4 is a flowchart illustrating a subscriber-based QoS control method in a WiBro system according to the present invention.

Description of the Related Art

100: mobile communication terminal 200: base station

300: control station 400: authentication server

500: Element management device

Claims (9)

delete A receiving unit for receiving a service profile ID for QoS processing of a subscriber based on a customer data distribution server; A storage unit for storing the received service profile ID; A confirmation unit for confirming whether the received service profile ID is a subscriber-based QoS allocation service subscriber; And And a transmitter for transmitting a value of a service profile ID in a Packet-Flow-Descriptor to a control station when the subscriber identified by the confirmation unit is a subscriber-based QoS allocation service subscriber. 3. The method of claim 2, Wherein the transmission unit separates the uplink and the downlink with respect to the value of the service profile ID in the Packet-Flow-Descriptor, and transmits the uplink and downlink to the control station. 3. The method of claim 2, Change / delete function for the subscriber-based QoS allocation service processing, receives the corresponding data from the customer data distribution server and operates the new / change / delete function. A first identifying unit for identifying a service profile ID; Setting a service class for each identified service profile ID, checking a service class and a QoS parameter set index according to the set service profile ID, A second confirmation unit for confirming an index (QoS Parameter Set Index); And And a third checking unit for checking a service class and a QoS parameter set corresponding to the identified service profile ID. a) receiving from a customer data distribution server a service profile ID for QoS processing of a subscriber based on an authentication server, and storing the received service profile ID; b) the authentication server verifying that the received service profile ID is a subscriber-based QoS allocation service subscriber; c) providing the service profile ID to the control station when the authentication server is identified as a QoS allocation service subscriber in the checking step; And d) the control station stores parameters for the received service profile ID and performs call processing according to subscriber based QoS, In the step c) Wherein the authentication server separately transmits uplink and downlink to a value of a service profile ID in a Packet-Flow-Descriptor, Subscriber based QoS control method in WiBro system. delete The method according to claim 6, After step c) and before step d) Further comprising the step of the element management apparatus confirming the service. A method for confirming a service of an element management apparatus for subscriber-based QoS control of a WiBro system, Confirming the service profile ID; Setting a service class for each identified service profile ID, checking a service class and a QoS parameter set index according to the set service profile ID, Identifying an index (QoS Parameter Set Index); And And confirming a service class and a QoS parameter set corresponding to the identified service profile ID.

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