KR20110047651A - Method for Controlling QoS Based on Subscriber in WiBro System, Mobile Communication System therefor - Google Patents

Abstract

PURPOSE: A mobile communication system for a subscriber based QoS(Quality of Service) control method is provided to offer the QoS service without expanding an additional system. CONSTITUTION: An authentication server(400) manages a service profile ID in order to preferentially assign resources to an important call based on a subscriber. The authentication server transfers the service profile ID to a BSC(Base Station Controller)(100). An element management device(500) offers new/change/delete functions to a parameter by service profile ID. The BSC stores the parameter by service profile ID. The BSC performs call process by the subscriber based QoS.

Description

Method for controlling subscriber based QoS in WiBro system and mobile communication system for same {Method for Controlling QoS Based on Subscriber in WiBro System, Mobile Communication System therefor}

The present invention relates to a subscriber-based Quality of Service (QoS) control method and a mobile communication system for the same in a WiBro system. More specifically, the present invention relates to an indoor and outdoor stop using various types of portable terminals such as a laptop, a PDA, and a handheld PC Subscriber in WiBro system to perform priority call processing to subscribers set as important call targets in WiBRO system that can access various information and contents by accessing Internet in environment of environment and walking speed and medium-low speed mobile level The present invention relates to a QoS control method and a mobile communication system for the same.

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

WiBro is an abbreviation of Wireless Broadband Internet. It is a high-speed Internet service that can use various information and contents by accessing the Internet at high speed (about 1Mbps) anytime and anywhere while using mobile devices. That is, it is a concept of extending indoor wired high-speed Internet service so that it can be used outdoors. This is a new service that uses the 2.3 GHz frequency band to guarantee seamless wireless Internet service within a cell radius of 1 Km and at least 60 Km / H when moving, and to use the wireless Internet at a lower cost. Currently, it has been developed to support 70 Km / H mobility and 1 Mbps transmission rate per subscriber. When commercialized, 100 Km / H mobility and 3 Mbps transmission speed are possible.

WiBro system provides mobility of 60 Km / h per hour, and provides 24Mbps downlink transmission speed and IP (Internet Protocol) based IP that can provide downlink transmission speed of 50Mbps by applying MIMO (Multiple Input Multiple Output) system. Wireless data system.

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

In the WiBro system, the QoS class is UGS (Unsolicited Granted Service), RT-VR (Real Time Variable Rate), nRT-VR (Non RT-VR), BE (Best Effort), eRT-VR (Extended RT-VR). As defined in this specification. The QoS class is applied to each service flow, and the QoS class to be applied when generating the service flow is determined. A terminal may have a plurality of service flows simultaneously, and QoS grades of a plurality of service flows dependent on one terminal may be different. That is, even if the terminal has one service flow, the terminal may request and use resources other than the resources allocated to the service flow. The actual functional operation operates in the RAS corresponding to the base station. Currently, only BE is used as a default.

In order to properly operate the QoS for the above-described five classes, the WiBro system must give an appropriate command to a remote access server (RAS) in an access control router (ACR). There is no optimized specification for this. The specification requires the introduction of additional policy servers.

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

In the WiBro system of the present invention for achieving the above object, a mobile communication system for subscriber-based QoS control is a service applied when a service flow of a subscriber is opened when authentication for a specific subscriber set as an important call is successful. Set the profile profile (Service Profile ID) to up / down, open the service flow by applying a QoS parameter set (QoS Parameter Set) of the previously stored service profile ID, so that it can be prioritized over general calls.

The mobile communication system of the present invention stores and manages a service profile ID so as to first allocate a resource to a subscriber-based important call, and transmits the service profile ID to a control station. Stores the parameters for each service profile ID in conjunction with the element management device and the element management device that provide new / change / delete function according to the operator command for the parameters for each service profile ID, and performs call processing according to subscriber-based QoS. And a control station.

The authentication server of the present invention includes a receiver for receiving a service profile ID for subscriber-based QoS processing from a customer data distribution server, a storage unit for storing the received service profile ID, and the received service profile ID is a subscriber-based QoS. And a transmitter for confirming whether the subscriber is an assigned service subscriber and a transmitter for transmitting the value of the service profile ID in the Packet-Flow-Descriptor to the control station when the subscriber identified in the identifier is a subscriber-based QoS assigned service subscriber.

The transmitting unit in the authentication server is characterized in that the uplink and downlink for the value of the service profile ID in the Packet-Flow-Descriptor, characterized in that for transmitting to the control station.

When the data new / change / delete function for the subscriber-based QoS allocation service processing occurs in the authentication server, the new server receives the data from the customer data distribution server to operate the new / change / delete function.

The element management apparatus of the present invention sets a first confirmation unit for confirming a service profile ID and a service class for each identified service profile ID, and sets the service class and QoS parameters for each set service profile ID. A second identification unit for checking a QoS Parameter Set Index by checking a QoS Parameter Set Index and a service class and a QoS parameter set corresponding to the identified service profile ID And a third verification unit.

In the WiBro system of the present invention, a subscriber-based QoS control method includes a) an authentication server receiving and storing a service profile ID for a subscriber-based QoS processing from a customer data distribution server, and b) the authentication server. After checking whether the received service profile ID is a subscriber-based QoS assigned service subscriber, c) if the authentication server is confirmed as a QoS assigned service subscriber in the checking step, providing a service profile ID to the control station, d The control station stores the received service profile ID-specific parameters 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 according 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 checking a service.

The service confirmation method of the element management apparatus for subscriber-based QoS control of the WiBro system of the present invention,

Check a service profile ID, set a service class for each identified service profile ID, check a set service class for each service profile ID and a QoS parameter set index; After checking the QoS Parameter Set Index for each service class, the service class and the QoS parameter set corresponding to the identified service profile ID are checked in order.

As described above, the subscriber-based QoS control method and the mobile communication system for the WiBro system according to the present invention, it is possible to provide a subscriber-based QoS service without introducing an additional system to the existing WiBro system, It can be expected that various rate systems can be applied according to the characteristics of each QoS Class.

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

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

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

In more detail, if the authentication at the authentication server for a particular subscriber is successful, the authentication server transmits the service profile ID to be applied to the control station as up / down when the service flow of the subscriber is opened. 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. In this case, the code and the type may be set differently according to the network environment or the transmission system.

As shown in FIG. 3, the service profile ID is classified into two types, up and down, according to the authenticated subscriber and transmitted to the control station. Specifically, when classifying subscriber classes into class 1 and class 2, service class IDs of 1 and 2 are set to class 1 subscribers, where service profile 1 is set up and service profile 2 is set down. Both up and down are sent to the control station.

In this case, the QoS class is classified as UGS and transmitted to the subscriber of class 1, and the QoS class is classified and transmitted to eRT-VR to the subscriber of class 2. However, even in the case of the subscriber in the first class, the QoS class is not necessarily classified as UGS and transmitted, but depending on the situation, the QoS class may be classified and transmitted as eRT-VR. The minimum traffic rate for transmission is set to 2M bps for up and 4M bps for down, for WiBro Infra either WiMAX Type of Data Delivery Services = 1 (UGS) or WiMAX Type of Data Delivery Services = 2 (eRT-VR ), The UL / DL minimum bitrate must be satisfied, so 2M bps for up and 4M bps for down.

In addition, the service flow is opened by applying a QoS parameter set of a preset service profile ID to apply QoS differentiated from other general subscribers. This makes it possible to perform call processing in order of 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-class subscriber management function.

Hereinafter, referring to FIG. 1, a case of operating in a detailed configuration of a mobile communication system will be described as an example.

The mobile communication system for subscriber-based QoS control in the WiBro system includes a base station 200, a control station 300, an authentication server 400, and an element management device 500 that communicate 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 radio frequency (RF) / IF (intermediate frequency) module, and has a controller function, a MAC (variable media access control) frame control function according to a radio wave environment, and a handover function. , Authentication and encryption functions. In addition, 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), a mobile communication terminal, and the like. A terminal having a web browser for use, a memory for storing a program, a microprocessor for executing and controlling a program, and the like. That is, the mobile communication terminal 100 may 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 mobile Internet network through the terminal 100, and after the subscriber accesses, a process for providing a subscriber-based QoS service proceeds. That is, the subscriber accesses the Internet network through any one of a personal computer (PC), a laptop, a personal digital assistant (PDA), and a mobile communication terminal owned by the subscriber. Accordingly, the base station receives the access information.

The base station 200 is a means for receiving access information from the terminal 100 and transmitting the transmission information through the Internet network to the terminal 100. Preferably, it is a RAS (Radio Access Station), but is not necessarily limited thereto. The base station 200 may be composed of a plurality of RAS, the controller function, orthogonal frequency division multiple access (OFDMA) / time division duplex (TDD) packet scheduling and channel multiplexing function, MAC frame variable control function according to the service characteristics and propagation environment 50 Mbps high-speed traffic real-time control, handover function and the like. In addition, the mobile communication terminal 100 and the RAS include a 50 Mbps packet transmission modulation and demodulation function, a high speed packet channel coding function, and a real time modem control function for data transmission.

When a subscriber accesses through the terminal 100, information about 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, failure management, performance management, and security management for a router. The element management device and the router perform management functions using Simple Network Management Protocol (SNMP) and Management Information Base (MIB) information.

The element management device manages the network topology by collecting MIB information about the network equipment to be managed at initial startup, and provides information necessary for configuration management, fault management, and performance management of the network equipment existing on the network topology. Collect information using GetRequest / GetNextRequest command among SNMP PDUs (Protocol Data Unit) or store it in DB using trap message received from network equipment and analyze the correlation among them to obtain information in the form of mounting diagram, graph, table to provide.

The trap message is an SNMP message generated and sent by the network device to inform the element management device when an event such as a failure, alarm, or state change occurs in the network device. The element management device has a function to enable new addition, change, and deletion according to the operator's command for the parameters for each service profile ID.

The control station may be configured to include a plurality of routers in order to store parameters for each service profile ID in association with the element management apparatus and to process a call according to the subscriber-based QoS, wherein the routers are packet access routers. 200) handover control function, handover function between a plurality of routers, handover function between a base station of another network (for example, CDMA 2000 network, WCDMA network, etc.) and a plurality of base stations 200, packet routing function, Internet access function Etc.

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

The authentication server 400 is a means for storing and managing information for class authentication of the subscriber. The authentication server 400 stores and manages a service profile ID so as to first allocate resources to important subscriber-based calls. This is transmitted 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) and stores it in the storage.

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

Meanwhile, the authentication server 400 confirms whether the subscriber-based QoS allocation service subscriber is a subscriber, and checks whether the subscriber-based QoS allocation service subscriber has an uplink for the value of the service profile ID in the Packet-Flow-Descriptor. The downlink is separately transmitted to the control station 300.

For example, as shown in FIG. 2, the parameter of the service profile ID is included in the Packet-Flow-Descriptor and distinguishes the uplink and the downlink, respectively.

In addition, the service profile ID parameter disclosed in FIG. 3 is information for element management apparatus / control station allocation, and includes uplink / downlink information for each service profile ID and WiMAX type information of data transmission service (WiMAX Type of Data Delivery Services). , Minimum Reserved Traffic Rate-UL / DL, User Class, etc.

Meanwhile, the WiBro Infra must satisfy the 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 and receives new data / service for subscriber-based QoS allocation service processing. Activate the change / delete function.

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

In addition, the authentication server is to set the User Class = 2 (eRT-VR operation) for the QoS of the general highest priority subscriber, and to set the User Class = 1 (UGS operation) for the QoS of the highest priority subscriber in a special case. . As a result, even among the highest-priority subscribers, call classes may be changed by different QoS classes according to service characteristics.

If the authentication server 400 does not receive the subscriber-based QoS processing from the customer data distribution server, it maintains the existing processing scheme.

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 the subscriber-based QoS processing from the customer data distribution server (S101). Accordingly, the subscriber stores and manages the information necessary for authentication, so that the authentication process can proceed smoothly.

When the authentication server 400 authenticates the subscriber, the service allocation ID is provided to the QoS assigned service subscriber (S103). This is to prepare the call connection first.

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

Thereafter, the control station 300 stores the service profile ID-specific parameters and performs call processing according to the subscriber-based QoS (S105). This allows the first priority call connection.

On the other hand, although not shown, after step S103 and before step S105, the element management apparatus 500 checks the service profile ID, checking the QoS parameter set index (QoS Parameter Set Index) for each service class, service Check the class and QoS parameter set. This is for the element management apparatus 500 to determine the subscriber to be the first call connection among a plurality of systems connected to the network.

Here, the checking of the service profile ID is a step of determining a priority call connection target by checking the service profile ID of the subscriber, and the step of checking the QoS Parameter Set Index for each service class is element management. This is a step for determining whether a call connection can be made according to the QoS class by checking a service class for each service profile ID and a QoS Parameter Set Index set by the device 500.

In addition, the element management apparatus 500 confirms 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.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the subscriber-based QoS control method and the mobile communication system for this in 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 the high necessity to apply various rate schemes to subscribers according to QoS class characteristics.

Therefore, the present invention can be applied to a mobile communication system that can be used as a WiB. In addition, the existing system can provide a subscriber-based QoS service without adding new equipment.

1 is a view showing the configuration of a mobile communication system according to the present invention;

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

3 is a view 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.

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

100: mobile communication terminal 200: base station

300: control station 400: authentication server

500: element management device

Claims (9)

An authentication server for storing and managing a service profile ID so as to first allocate a resource to a subscriber-based important call, and transmitting the service profile ID to a control station; An element management device for providing a new / change / delete function according to an operator command with respect to the parameter for each service profile ID; And A control station that stores the service profile ID-specific parameters in association with the element management apparatus and performs call processing according to subscriber-based QoS; Mobile communication system for subscriber-based QoS control in a WiBro system comprising a. Receiving unit for receiving a service profile ID for subscriber-based QoS processing from the 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 in the verification unit is a subscriber-based QoS allocation service subscriber. The method of claim 2, The transmitting unit distinguishes the uplink and the downlink with respect to the value of the service profile ID in the Packet-Flow-Descriptor, and transmits them to the control station. The method of claim 2, When the data new / change / delete function for the subscriber-based QoS allocation service processing occurs, receiving the data from the customer data distribution server to operate the new / change / delete function. A first checking unit for checking a service profile ID; Set a service class for each identified service profile ID, and check the set service class for each service profile ID and a QoS parameter set index to determine the QoS parameter set for each service class. A second verification unit for checking 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 checked service profile ID. a) the authentication server receiving and storing a service profile ID for the subscriber-based QoS processing from the customer data distribution server; b) the authentication server confirming whether the received service profile ID is a subscriber-based QoS allocation service subscriber; c) providing a service profile ID to a control station when the authentication server is identified as a QoS assigned service subscriber in the checking step; And d) storing, by the control station, a parameter for each service profile ID received and performing call processing according to subscriber-based QoS; Subscriber-based QoS control method in a WiBro system comprising a. The method of claim 6, In step c), The method according to claim 1, wherein the authentication server transmits the uplink and the downlink separately according to the value of the service profile ID in the Packet-Flow-Descriptor. The method of claim 6, After step c) and before step d), The method of controlling a subscriber-based QoS in a WiBro system, characterized in that the element management device further comprises the step of identifying a service. Service verification method of element management device for subscriber based QoS control of WiBro system, Checking a service profile ID; Set a service class for each identified service profile ID, and check the set service class for each service profile ID and a QoS parameter set index to determine the QoS parameter set for each service class. Identifying an index (QoS Parameter Set Index); And And checking a service class and a QoS parameter set corresponding to the identified service profile ID.

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