KR20140055856A - Apparatus and method for qos control in ccc network - Google Patents

Apparatus and method for qos control in ccc network Download PDF

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Publication number
KR20140055856A
KR20140055856A KR1020120123223A KR20120123223A KR20140055856A KR 20140055856 A KR20140055856 A KR 20140055856A KR 1020120123223 A KR1020120123223 A KR 1020120123223A KR 20120123223 A KR20120123223 A KR 20120123223A KR 20140055856 A KR20140055856 A KR 20140055856A
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service
level
information
quality
qci
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KR1020120123223A
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Korean (ko)
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김도경
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주식회사 케이티
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a device and a method for controlling service quality. The device for controlling service quality individually generates QCI information on an operator based on received service agreement information when one or more pieces of service level agreement information concluded by one or more operators in order to control service quality which one or more operators provides for a plurality of terminals. Moreover, the device for controlling service quality controls the service quality supplied to the terminal by one operator by transmitting the QCI information to a policy and charging rule function (PCRF).

Description

[0001] Apparatus and method for QoS control in CCC network [

The present invention relates to an apparatus and method for controlling quality of service.

With the development of Long Term Evolution (LTE) technology and the use of large-scale cell sites, network investment and operating costs are increasing. Therefore, studies are underway to provide cost reduction and optimal network quality, and network sharing managed service is one example.

However, in a typical mobile communication network environment, the network sharing management service is still in a level to provide network configuration and services by sharing a base station or equipment in order to reduce a network establishment cost and an operation cost to a mobile communication provider.

Therefore, the present invention provides a service quality control apparatus and method for allowing resource sharing among a plurality of providers.

According to another aspect of the present invention, there is provided a method for controlling a service quality provided by a service quality control apparatus to a plurality of terminals,

Receiving service level agreement information concluded by the one or more vendors; Generating QCI (QoS Class Identifier) information for the one or more carriers based on the received service agreement information; And transmitting the QCI information to a Policy and Charging Rules Function (PCRF) linked with the quality of service control device, and controlling quality of service provided to the terminal by one of the one or more providers .

The step of generating the QCI information may include: converting the received service agreement information into a cost function; Controlling power of a terminal to provide a service using the converted cost function; Determining a service level agreement level for a service providing service to the terminal based on the controlled power, the cost function, and previously stored reference information; And generating the QCI information by mapping the QCI level based on the determined service level agreement level.

Wherein the controlling the power comprises adjusting one or more terminals each using one or more services provided by one or more carriers via one base station to reduce the powers used by the one base station to transmit signals to the one base station Step < / RTI >

The reference information may include service level agreement level information, service level agreement level definition, QCI level information, packet delay time, packet loss rate, and relative priority information.

The PCRF may include a step of updating QCI tables stored for the one or more providers upon receipt of the QCI information from the service quality control device.

Receiving a request for providing service quality attribute information for one of the one or more providers from a mobility management apparatus linked with the PCRF after the step of updating the QCI table; And checking and providing the service quality attribute information from the QCI table for the arbitrary provider among the QCI tables for the one or more carriers stored in the mobility management apparatus.

The mobility management apparatus may be configured to determine whether or not congestion occurs in an arbitrary service provider providing a service through the base station when the terminal accesses the base station to receive a service from the arbitrary service provider, ≪ / RTI > And requesting the PCRF to provide the service quality attribute information if congestion has occurred in the arbitrary service provider.

And allocating a radio access bearer to be provided to the mobile station based on the quality of service attribute after requesting the provision of the service quality attribute information.

And allocating a preset radio access bearer if no congestion has occurred in the arbitrary service provider.

After the step of updating the QCI table, the quality of service control apparatus requests the PCRF to update the trigger status; And receiving a trigger status update confirmation message from the PCRF.

According to another aspect of the present invention, there is provided an apparatus for controlling service quality provided by a plurality of terminals,

A service level agreement registration unit for registering and managing service level agreement information of each of the one or more carriers; A function conversion unit for converting service level agreement information of providers registered in the service level agreement registration unit into a cost function and storing the converted cost function information; A power controller for controlling a power level used by the terminal for signal transmission using the cost function stored in the function conversion unit and controlling a service level agreement level for a service provider providing the service based on the controlled power; A service level level mapping unit for receiving a service level agreement level controlled by the power control unit, a cost function stored in the function conversion unit, and previously stored reference information, and mapping the cost function to a service level agreement level; And a service level agreement level mapped by the service level level mapping unit and the reference information, maps the service level agreement level to a QCI level, generates QCI information, and transmits the QCI And a quality class identifier level mapping unit for transmitting information.

The apparatus includes reference level information including a predefined service level agreement level and QCI information for a service level agreement level, and the reference level information is provided to the service level level mapping unit and the quality class identifier level mapping unit, And an information storage unit.

According to the present invention, a Mobile Virtual Network Enabler (MVNE) network that accommodates resource sharing among a plurality of carriers can be configured, and network quality between each provider can be ensured according to SLA (Service Level Agreement).

1 is an exemplary diagram of a network structure according to an embodiment of the present invention.
2 is a structural diagram of a service quality control system according to an embodiment of the present invention.
3 is a flowchart illustrating a method of controlling a service quality according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating an interface flow between a service quality control system and a PCRF according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

In this specification, a terminal includes a mobile station (MS), a mobile terminal (MT), a subscriber station (SS), a portable subscriber station (PSS) An access terminal (AT), and the like, and may include all or some of functions of a mobile terminal, a subscriber station, a mobile subscriber station, a user equipment, and the like.

In this specification, a base station (BS) is an access point (AP), a radio access station (RAS), a node B, a base transceiver station (BTS) Mobile Multihop Relay) -BS, and may include all or some of the functions of an access point, a radio access station, a Node B, a base transceiver station, and an MMR-BS.

Hereinafter, an apparatus and method for controlling quality of service according to an embodiment of the present invention will be described with reference to the drawings. In order to explain an embodiment of the present invention, it is assumed that a plurality of operators share a LTE CCC core network, a digital unit (DU), and a radio unit (RU) in a network accommodating a plurality of operators in the LTE CCC structure do.

1 is an exemplary diagram of a network structure according to an embodiment of the present invention.

1, the network structure for controlling the quality of service includes a base station (eNB) 100, an S-GW (Serving Gateway) 200, a P-GW (PDN Gateway) 300, A Home Location Register (HLR) 500, an SLA AS 600, and a Policy and Charging Rules Function (PCRF) 700 (Mobility Management Entity) ).

The eNB 100 provides a radio interface to the UE and manages radio resources such as radio bearer control, radio admission control, dynamic radio resource allocation, load balancing, and intercell interference control. And requests the MME 400 to create a traffic channel, i.e., a Radio Access Bearer, for providing data to the UE.

The MME 400 communicates with an HSS (Home Subscriber Server) for user authentication and download of a user profile in cooperation with the eNB 100, the HLR 500, and the PCRF 700, manages the mobility of the terminal, and manages the bearer . The MME 400 receives the triggering condition information through the eNB 100 and determines whether any service provider providing the service is in the congestion state and allocates the radio access bearer to the UE according to the congestion state.

At this time, the wireless access bearer may be allocated by receiving the QoS attribute information from the PCRF 700, or the wireless access bearer may be allocated without the QoS attribute information. Here, a method of determining whether the MME 400 is in a congested state is already known, and a detailed description thereof will be omitted in the embodiment of the present invention.

The S-GW 200 interlocks with the eNB 100 and the P-GW 300 and becomes an anchor point at the time of handover between the eNB 100 and the eNB 100. The P-GW 300 allocates an IP address to the terminal, receives the rule from the PCRF 700, and applies the charging function to the terminal. The HLR 500 stores and manages all information of the terminal in order to connect a call to the terminal in cooperation with the MME 400 and the PCRF 700 or to provide a mobile communication service to the terminal.

The PCRF 700 determines a policy and a charging rule for each terminal, and transmits the determined information to the P-GW 300. [ Then, the QoS information is delivered to the MME 400 using the QoS Class Identifier (QCI) table information received from the SLA AS 600, so that QoS for each service can be applied according to the QCI table. For this purpose, when the QCI table information for the service provider is transmitted from the SLA AS 600, it is stored and managed.

That is, when the terminal requests a traffic channel to the network to use the data service, the PCRF 700 uses the data service type and the business entity identification information to which the user belongs so that the QoS attribute on the QCI table can be applied to the traffic channel And delivers the command to the MME 400. Upon receiving a request to update the QCI table, the QCI table information received previously is updated, and QoS information according to the updated QCI table information is transmitted to the MME 400.

The PCRF 700 sets trigger condition information, which is reference information for determining whether the eNB 100 is in a congested state, in the MME 400, and transmits the trigger condition information to the MME 400. Hereinafter, a method of setting the trigger status information will be described.

The SLA AS 600 interworks with the PCRF 700 and transmits a service level agreement (SLA) to be concluded between the service provider and the MVNE provider to the network Performs O & M function to manage SLA agreement contents by business operator.

In the embodiments of the present invention, the above-mentioned components are included in the network structure for convenience of explanation. In addition, the present invention may further include components necessary for providing an LTE service to the terminal. The function of each component is already known, and detailed description is omitted in the embodiment of the present invention.

Here, the SLA AS 600 is referred to as a " service quality control device " for convenience of description, and a structure of a device capable of providing service by controlling service quality for each service provider according to an embodiment of the present invention will be described with reference to FIG. 2 .

2 is a structural diagram of a service quality control apparatus according to an embodiment of the present invention.

2, the service quality control apparatus 600 includes a service level agreement registration unit 610, a function conversion unit 620, a power control unit 630, a reference information storage unit 640, (650) and a quality class identifier level mapping unit (660).

The service level agreement registration unit 610 registers and manages the SLA information of each of one or more operators. The SLA can be updated according to the contract with the provider. The SLA information includes service provider identification information, service priority information on which service is prioritized by the provider, QoS level information requested by the provider, And the number of terminals capable of providing services without congestion.

The function conversion unit 620 converts the SLAs of the operators registered in the service level agreement registration unit 610 into a cost function and stores the converted SLA. Here, the cost function is a function generated by the function conversion unit 620 so that the network is applied based on the cost function when the service provider provides the service to an arbitrary terminal. Since the SLA can be converted into the cost function using various methods, the present invention is not limited to any one method.

The power controller 630 adaptively controls the power used by the terminal for signal transmission using the cost function stored in the function converter 620. This is because terminals located far away from the eNB 100 transmit signals with relatively higher power than those located near the eNB 100. In this case, since interference occurs between the terminals, the power control unit 630 controls the power so as to prevent inter-terminal interference.

The power control unit 630 controls the SLA level based on the controlled power, and the SLA level at this time can be changed in real time based on the controlled power. The algorithm by which the power control unit 630 performs the power control is already known, and a detailed description thereof will be omitted in the embodiment of the present invention, but an example of performing the power control will be described later.

The reference information storage unit 640 stores a QoS class identifier (hereinafter referred to as 'QCI') information for the SLA level and the SLA level defined in advance. And transmits the information to the service level level mapping unit 650 and the quality class identifier level mapping unit 660 so that the QoS policy can be applied to the network according to the SLA agreement concluded by the service providers.

The information stored in the reference information storage unit 640 is shown in Table 1 below, and Table 1 is not necessarily limited to such an example. That is, the reference information according to an exemplary embodiment of the present invention includes SLA level, SLA level definition, QCI level, Packet Delay Budget (PDB), Packet Loss Rate (PLR) Priority information is described as an example.

SLA
level Justice QCI table QCI PDB PLR RP One Provide relative priority (RP) and GBR for all services One 100ms 10-2 One 2 Provides RP and GBR for interactive voice and video services only 2 150ms 10-3 2 3 Provides RP and GBR for streaming services only 3 300ms 10-6 3 4 Provides RP and GBR for real-time interactive services only 4 50ms 10-3 4

In Table 1, for example, when congestion occurs in an arbitrary service provider, an arbitrary service provider in which congestion occurs is required to provide SLA (Relative Priority) and Guaranteed Bit Rate (GBR) Is concluded. Then, the SLA level of the provider is set to level 1, and not only the priority is given to the terminals using the service of the provider, but also the priority and the GBR are set for all the services. At this time, the packet loss rate is 10-2 and the PDB is 100ms.

The service level level mapping unit 650 receives the SLA level controlled by the power control unit 630, the cost function stored in the function conversion unit 620, and the reference information stored in the reference information storage unit 640, And maps the cost function to the SLA level.

When mapping the cost function to the SLA level in the service level level mapping unit 650, the quality class identifier level mapping unit 660 receives the SLA level and the reference information stored in the reference information storage unit 640, Map to the QCI level. Then, the QCF information about the mapped QCI level is transmitted to the PCRF 700, and the QCI table stored in the PCRF 700 is updated or newly requested. At this time, each time the QCI information is updated, the version information is incremented by one, and the PCRF 700 is informed that it is the latest version of the QCI information.

A method for controlling the service quality according to the inter-provider SLA through the above-described service quality control device will be described with reference to FIG.

3 is a flowchart illustrating a method of controlling a service quality according to an embodiment of the present invention.

As shown in FIG. 3, it can be roughly divided into a procedure of generating and updating a QCI table and a step of forming a traffic channel based on the QoS attribute of the QCI table in order to control the quality of service.

First, the procedure of creating and updating the QCI table will be described. When the SLA AS 600 enters the SLA contract content entered into by an arbitrary provider (S100), it generates the QCI information based on the input SLA contract content (S101 ).

In step S101, the service level agreement registration unit 610 stores the SLA agreement contents entered by an arbitrary provider, and the function conversion unit 620 converts the entered SLA agreement contents into a cost function . The power controller 630 controls the power using the cost function converted by the function converter 620, and then controls the SLA level.

A method in which the power control unit 630 controls the power used by the terminal will be described. It is assumed that two service providers A and B provide services to the terminal through the eNB 100. It is assumed that a terminal receiving a service from an A provider and a terminal receiving a service from a B provider in an eNB 100 are the same number.

V1 represents an initial power of a terminal receiving a service from an A provider (hereinafter referred to as "A terminal" for convenience of explanation), + Δv1 represents a power increase of the A terminal, - Δv1 represents power reduction of the A terminal And the power of the A terminal after the power increase is v1 +? V1, and the power of the A terminal after the power decrease is v1-? V1. Then, the cost incurred when the terminal A rises in power is expressed as? V1.

Similarly, the initial power of a terminal (hereinafter, referred to as a 'B terminal') provided by a service provider B is v2, + Δv2 is a power increase of the terminal B, - Δv2 is power of the terminal B And the power of the B terminal after the power increase is v2 +? V2, and the power of the B terminal after the power decrease is v2-? V2. And the cost incurred when the B terminal rises in power is expressed as? V2.

Then, the signal-to-interference noise ratio (SINR) of the B-terminal to the A-terminal can be obtained as (v1 +? V1) / (v2 +? V2). In this case, the power controlled by the power control unit 630 is set so that the power control of both the A-terminal and the B-terminal can be reduced, that is, "v2-? V2> 1 /? V1-? V1> The cost function?? V converted by the function conversion unit 620 is adjusted so as to satisfy the following equation. Here, the method by which the power controller 630 controls the power of the terminal is already known, and a detailed description thereof will be omitted in the embodiment of the present invention.

The service level level mapping unit 650 receives the SLA level for the corresponding operator based on the SLA level controlled by the power control unit 630 and the reference information stored in the cost function and reference information storage unit 640 in the function conversion unit 620 . The quality class identifier level mapping unit 660 generates QCI information by mapping the QCI level based on the SLA level determined by the service level level mapping unit 650. The QCI information includes version information indicating that the corresponding QCI information is recent information.

The service quality control device, that is, the SLA AS 600 transmits the QCI information generated by the above procedure to the PCRF 700, and requests the PCRF 700 to newly generate a QCI table for the corresponding provider stored in the PCRF 700 . At this time, if there is a QCI table already generated in the PCRF 700, the power control unit 630 requests the information to be updated according to the SLA level newly controlled by the power control unit 630 (S102).

Here, an interface sequence message between the SLA AS 600 and the PCRF 700 when the SLA AS 600 transmits QCI information to the PCRF 700 in step S102 will be described first with reference to FIG.

4 is an exemplary diagram illustrating an interface flow between a service quality control apparatus and a PCRF according to an embodiment of the present invention.

As shown in FIG. 4, the SLA AS 600 transmits an SLA registration request message (Request SLA registration) to the PCRF 700 in order to start registering SLA content for each provider (S200). At this time, there are several operators in the message as parameters, and the version information of the SLA-QCI mapping table for each vendor to be updated is transmitted together.

Then, the PCRF 700 confirms the number of operators in the parameter of the SLA registration request message and the SLA-QCI mapping table version information according to the provider. If the version to be updated is newer than the version stored in the PCRF 700, an SLA registration acknowledgment message (Ack SLA registration) message is transmitted to the SLA AS 600 so that the PCRF 700 registers (S210).

Upon receiving the SLA registration confirmation message from the PCRF 700, the SLA AS 600 transmits a new version of the SLA-QCI mapping table update request message to the PCRF 700 in step S220. After receiving the new version of the SLA-QCI mapping table update request message received from the SLA AS 600, the PCRF 700 transmits an SLA-QCI mapping table update confirmation message to the SLA AS 600 indicating that the update has been performed S230).

Next, the SLA AS 600 transmits a trigger status update request message including triggering condition information so that the PCRF 700 can be utilized as reference information for determining whether the MME 400 is in a congested state S240), the PCRF 700 updates the trigger status information and transmits an update confirmation message to the SLA AS 600 (S250). Here, the trigger state information is set reflecting the number of business operators and the QoS control penalty logic for each business entity, and is set by the following Equation 1, but the mathematical expression is not necessarily limited to this.

[Equation 1]

Trigger state = number of SLAs & (number of terminals satisfying QoS> number of terminals not satisfying QoS) & (number of terminals requesting QoS control within control range / number of terminals in control range) )

On the other hand, the PCRF 700 requests the HLR 500 for information on the corresponding provider and receives the information (S103, S104). Then, the PCRF 700 updates the QCI table based on the provider information received in step S104 and the QCI information received in step S102 (S105).

When a QCI table for an arbitrary provider is generated and stored in the PCRF 700 through the above procedure and an arbitrary terminal located in the eNB 100 performs a connection procedure to provide the service, the eNB 100 and the MME 400, the P-GW 300, and the S-GW 200 are performed.

That is, the eNB 100 requests the MME 400 to create a radio access bearer for data transmission (S111). The MME 400 requested to create a radio access bearer checks whether the eNB 100 is congested (S112). If the eNB 100 is not congested, the MME 400 allocates a radio access bearer to the eNB 100 (S115).

The radio access bearer is connected between the MME 400 and the P-GW 300, between the P-GW 300 and the S-GW 200 and between the S-GW 200 and the eNB 100, And provides services to the terminals in the area 100. Here, the method of confirming whether the MME 400 is in the congested state of the eNB 100 in step S112 is already known, and a detailed description thereof will be omitted in the embodiment of the present invention.

On the other hand, if it is determined in step S112 that the eNB 100 is congested, the MME 400 requests QoS attribute information from the PCRF 700 (S113). When the MME 400 requests the QoS attribute information from the PCRF 700, the MME 400 requests the terminal including the service provider identification information of the service provider to which the terminal is connected to receive the service.

The PCRF 700 transmits the QoS attribute information of the corresponding provider to the MME 400 based on the provider identification information (S114). The MME 400 allocates a radio access bearer to be provided to the UE based on the received QoS attribute information (S115). At this time, if an arbitrator connected to the terminal establishes an SLA in advance, a radio access bearer is created to guarantee QoS according to the set SLA. However, if an operator does not set an SLA in advance, it connects a radio access bearer capable of providing a predetermined optimal efficiency, which is the same as the radio access bearer connection in the case where it is determined that the congestion state is not the result of step S112.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (13)

A method for controlling quality of service provided by a service quality control device to a plurality of terminals by at least one provider,
Receiving service level agreement information concluded by the one or more vendors;
Generating QCI (QoS Class Identifier) information for the one or more carriers based on the received service agreement information; And
Transmitting the QCI information to a Policy and Charging Rules Function (PCRF) linked with the service quality control device and controlling quality of service provided to the terminal by one of the at least one service provider
Gt; a < / RTI > quality of service control. The method according to claim 1,
Wherein the step of generating the QCI information comprises:
Converting the received service agreement information into a cost function;
Controlling power of a terminal to provide a service using the converted cost function;
Determining a service level agreement level for a service providing service to the terminal based on the controlled power, the cost function, and previously stored reference information; And
And generating QCI information by mapping the QCI level based on the determined service level agreement level
Gt; a < / RTI > quality of service control. 3. The method of claim 2,
The step of controlling the power comprises:
Adjusting one or more terminals, each of which uses one or more services provided by one operator via one base station, to reduce the powers used by the one or more terminals to transmit signals to the one base station
Gt; a < / RTI > quality of service control. 3. The method of claim 2,
Wherein the reference information includes service level agreement level information, definition according to a service level agreement level, QCI level information, packet delay time, packet loss rate, and relative priority information. The method according to claim 1,
In the PCRF,
Upon receipt of the QCI information from the service quality control apparatus, updating the QCI table stored in the at least one provider
Gt; a < / RTI > quality of service control. 6. The method of claim 5,
After the step of updating the QCI table,
Receiving a request for providing service quality attribute information for one of the one or more providers from a mobility management apparatus interworking with the PCRF; And
Checking and providing the service quality attribute information from the QCI table for the arbitrary one of the QCI tables for the one or more carriers stored in the mobility management apparatus
Gt; a < / RTI > quality of service control. The method according to claim 6,
Wherein the mobility management apparatus, prior to the step of requesting the provision of the service quality attribute information,
If the terminal accesses the base station to receive a service from the arbitrary service provider, checking whether congestion has occurred in any service provider providing the service through the base station; And
Requesting provision of the service quality attribute information by the PCRF if congestion has occurred in the arbitrary service provider
Gt; a < / RTI > quality of service control. 8. The method of claim 7,
After requesting the provision of the quality of service attribute information,
Allocating a radio access bearer to be provided to the UE based on the quality of service attribute
Gt; a < / RTI > quality of service control. 8. The method of claim 7,
If congestion has not occurred in any of the carriers, a step of allocating a preset radio access bearer
Gt; a < / RTI > quality of service control. 6. The method of claim 5,
After the step of updating the QCI table,
Requesting the quality of service control apparatus to update the trigger status with the PCRF; And
Receiving a trigger status update confirmation message from the PCRF;
Gt; a < / RTI > quality of service control. 11. The method of claim 10,
Wherein the trigger status is set based on the number of operators and QoS control penalty logic for each provider. An apparatus for controlling quality of service provided by a plurality of terminals to a plurality of terminals,
A service level agreement registration unit for registering and managing service level agreement information of each of the one or more carriers;
A function conversion unit for converting service level agreement information of providers registered in the service level agreement registration unit into a cost function and storing the converted cost function information;
A power controller for controlling a power level used by the terminal for signal transmission using the cost function stored in the function conversion unit and controlling a service level agreement level for a service provider providing the service based on the controlled power;
A service level level mapping unit for receiving a service level agreement level controlled by the power control unit, a cost function stored in the function conversion unit, and previously stored reference information, and mapping the cost function to a service level agreement level; And
A service level agreement level mapped by the service level level mapping unit and the reference information, mapping the service level agreement level to a QCI level, generating QCI information, and transmitting the QCI information A quality class identifier level mapping unit
The service quality control apparatus comprising: 13. The method of claim 12,
A reference level information storage unit for storing reference information including a predefined service level agreement level and QCI information for a service level agreement level and providing the reference information to the service level level mapping unit and the quality class identifier level mapping unit,
The service quality control apparatus comprising:
KR1020120123223A 2012-11-01 2012-11-01 Apparatus and method for qos control in ccc network KR20140055856A (en)

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