KR20080098301A - Apparatus and method for partial adaptive transmission in a mimo system - Google Patents

Abstract

An apparatus for providing static QoS in a broadband wireless communication system and a method therefor are provided to reduce the whole transmission delay for QoS call processing and efficiently utilize the processing capacity. A static QoS(Quality of Service) providing method in a base station(210) of a broadband wireless communication system comprises the following steps of: receiving at least one of CS(ClasSification) rules and QoS mapping information(201,203) from a system managing unit on which a control station(220) or a PDF(230) is mountedn and then generating a mapping table; checking whether one or more service flow identifiers allocated to the terminal are received from the control station while an initial connection procedure with the terminal(200) entering a service network; and generating QoS flow by performing a DSA(Dynamic Service Add) procedure together with the terminal according to each flow identifier through the mapping table, when the service flow identifiers are received.

Description

Apparatus and method for providing static quality of service in broadband wireless communication system {APPARATUS AND METHOD FOR PARTIAL ADAPTIVE TRANSMISSION IN A MIMO SYSTEM}

The present invention relates to an apparatus and method for providing static QoS in a wireless communication system, and more particularly, to an apparatus and method for guaranteeing end-to-end QoS in a communication system using a broadband wireless access (BWA). It is about.

  Recently, the demand for various multimedia applications such as Voice of IP (VoIP), real-time game, and Video on Demand (VoD) with different traffic is increasing. As such, as the type of service increases, traffic congestion, and diversified service demand levels, a communication system is currently operating in consideration of QoS indicating user satisfaction as well as its own capability. Moreover, since the available resources change due to the time-varying channel environment and the movement of the terminal, a policy for guaranteeing the QoS is necessarily required.

On the other hand, many wireless communication technologies are proposed as candidates for high speed mobile communication. Among these, Orthogonal Frequency Division Multiplexing (OFDM) is recognized as the most powerful next generation wireless communication technology. The OFDM technology is expected to be used in most of the wireless communication technologies in the future, and the IEEE 802.16 series WMAN (Wireless Metropolitan Area Network) of the 3.5 generation technology is also adopted as the standard.

However, at present, the standard for the broadband wireless access is standardized only in the MAC layer QoS interworking procedure, and there is no interworking procedure with the network for guaranteeing end-to-end QoS. . In other words, the IEEE 802.16 series in charge of PHY / MAC is standardized only for the DSx interworking procedure between the base station and the terminal. Here, DSA (Dynamic Service Addition) indicates service generation, DSD (Dynamic Service Deletion) indicates service deletion, and DSC (Dynamic Service Change) indicates service change.

For quality service, end-to-end QoS of application layer should be guaranteed. Therefore, in the case of the broadband wireless access system in which only the MAC layer QoS is currently defined, an interworking procedure for QoS setting between a terminal, an access network, and a core network should be defined.

An object of the present invention is to provide an apparatus and method for providing static QoS in a broadband wireless communication system.

Another object of the present invention is to provide an apparatus and method for guaranteeing end-to-end QoS in a broadband wireless communication system.

Another object of the present invention is to provide an apparatus and method for configuring QoS between a terminal-access network and a core network in a broadband wireless communication system.

Another object of the present invention is to provide an apparatus and method for fixedly allocating a service flow to a terminal in a broadband wireless communication system.

According to an embodiment of the present invention to achieve the above object, a method of providing a static (Quality of Service) at the base station of the broadband wireless communication system, from a control station or a system manager equipped with a PDF (Policy Decision Function) Receiving at least one of a CS (ClasSification) rule and QoS mapping information to generate a mapping table, and performing at least one initial access procedure with a terminal entering a service network, at least one service assigned to the terminal from the control station. Checking whether a flow identifier is received, and when the service flow identifier is received, adding a terminal and a dynamic service for each service flow identifier by using the mapping table (Dynamic Service Add: hereinafter referred to as 'DSA') And performing a procedure to generate a QoS flow.

In order to achieve the above object, according to an embodiment of the present invention, a method of providing a static quality of service (QoS) at a control station of a broadband wireless communication system includes a CS (from a system manager equipped with a policy decision function (PDF)). Receiving at least one of a ClasSification) rule and a QoS profile to generate a mapping table, and request a trigger for dynamic service addition (Dynamic Service Add: 'DSA') for a specific UE from AAA (Authentication, Authorization, Accounting) Is checked, and when the DSA trigger request is received, allocates a service flow identifier to the corresponding terminal using the mapping table, and transmits the assigned service flow identifier to the base station to transmit the corresponding service flow identifier. It characterized in that it comprises a process of requesting to perform the DSA procedure for.

According to an embodiment of the present invention to achieve the above object, a method of providing a static (Quality of Service) in AAA (Authentication, Authorization, Accounting) of a broadband wireless communication system, the terminal entering the service network and authentication Performing a procedure, and adding a dynamic service including a user class identifier for the terminal that has completed the authentication procedure or several different QoS class types or one or more service profile identifiers to be allocated to the terminal to the control station (Dynamic Service). Add: hereinafter referred to as 'DSA') characterized in that it comprises the step of transmitting a trigger request.

According to an embodiment of the present invention to achieve the above object, a static (Quality of Service) providing apparatus in a broadband wireless communication system, at least one of the CS (ClasSification) rules, QoS mapping and service flow identifier information The system manager equipped with a PDF (Policy Decision Function) provided to the control station and the base station, AAA for transmitting a DSA trigger request for the terminal to the control station after performing an authentication procedure with the terminal entering the service network ( Authentication, Authorization, Accounting) and the CS rule and QoS mapping information are managed in the form of a mapping table, and when a DSA trigger request for the terminal is received, a service flow identifier is assigned to the corresponding terminal using the mapping table. Transmitting the allocated service flow identifier to a base station to perform a DSA procedure on the corresponding service flow identifier; Manages the requesting control station and the CS rule and QoS mapping information in the form of a mapping table, and receives one or more service flow identifiers assigned to the terminal from the control station during an initial access procedure with the terminal; The base station may be configured to obtain a QoS parameter from the mapping table using the received service flow identifier and to generate a QoS flow by performing a DSA procedure with the terminal for each service flow identifier using the obtained QoS parameter. Characterized in that.

The present invention has an advantage of guaranteeing end-to-end QoS by proposing an overall interworking procedure for provisioning QoS in a broadband wireless communication system. In addition, by utilizing existing call processing interfaces as much as possible, minimizing and simplifying information transfer between each interface, reducing overall transmission delay for QoS call processing and efficiently utilizing processing capacity. There is this. Therefore, the method proposed in the present invention is effective in terms of processing capacity or cost, and thus, it is reflected in standards and developments, thereby greatly improving the competitiveness of a mobile communication system.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, an apparatus and method for providing static (or provisioned) QoS in a broadband wireless communication system will be described. In this case, the static QoS setting means generating a QoS flow in advance when the initial network is connected.

In the following description, the base station may be, for example, a radio access station (RAS) or a base station (BS). The control station may also be an access control router (ACR) or an access service network gateway (ASN-GW). Here, the ASN-GW may perform a router function as well as a control station function. In addition, in the following description, the name of a network entity (NE) is defined according to a corresponding function and may vary depending on the intention of a user or an operator.

In the standard, each flow state is classified into three types: Provisioned, Admitted, and Active.In the case of Provisioned, only SFID is assigned. In the case of Admitted and Active, SFID vs. TCID (Traffic Connection IDentifier) Means status. Here, if traffic flows to the assigned TCID, it is defined as an active state.

1 illustrates a network configuration according to an embodiment of the present invention.

As shown, a mobile station (MS) 110, a base station (RAS) 120, a control station (ACR) 130, a policy server (Policy Server) 140, AAA (Authentication, Authorization, Accounting) 150) and the system manager (160). Here, the network composed of the base station 120 and the control station 130 may be defined as an access service network (ASN). In addition, the system manager 160 may be referred to as WiBro System Manager (WSM) or Element Management System (EMS), and the policy server 140 may be configured as a separate server as shown. The network component may be mounted as a function, that is, a policy decision function (PDF) function.

Referring to FIG. 1, first, the AAA 150 performs authentication and charging for the terminal 110 in cooperation with the control station 130. According to the present invention, the AAA 150 requests a dynamic service add (“DSA”) trigger to the control station 130 when authentication of the terminal is successful. Upon requesting the DSA trigger, the AAA 150 determines a user class ID for the terminal, one or more service profile IDs to be assigned to the terminal, and service profiles assigned to the terminal. Any one of a QoS parameter set may be provided to the control station 130. In this case, the service profile identifier and the QoS parameter set are output parameters of the PDF. If the service profile identifier and the QoS parameter set are provided, the AAA 150 may load the PDF. In addition, the AAA 150 may provide the control station with an allowable range of QoS parameters for each service profile. Here, even in the same service type, the allowable range may vary according to the user class. Here, a common open policy service (COPS) or a radius or diameter interface may be used between the AAA 150 and the ASN. Meanwhile, the user information may be managed by a subscription profile repository (SPR) server. In this case, the user class identifier may be provided at the SPR server. The function of the SPR server may be included in the AAA server or another server or exist as a separate server.

In addition, the AAA 150 performs charging for the terminal. Here, the charging statistics section is determined to be a section in which the actual service flow is active. When the terminal moves, the control station in charge of the start time, middle time and end time of the traffic flow may be different, each control station reports the actual serving time to the AAA (150). As another example, whenever the call processing control station is changed, the charging statistics information accumulated up to that time is transferred to the target control station, and the charging station at the end of the service may report the collected charging statistics information to the AAA 150. have. If the SIM card is mounted in the terminal, the AAA 150 may transmit the charging statistics information collected from the control station 130 to the terminal through the application layer. In this case, charging is performed in the SIM card of the terminal. As another example, the SIM card may charge itself. In this case, the charging statistical information may be collected by the terminal itself or provided from the control station.

The policy server 140 provides QoS information input by an operator (or operator) to the control station 130 and the base station 120. For example, the QoS information may be composed of a service profile set (set) for each user class and a QoS parameter set (set) for each service profile. Here, the user class may be divided into, for example, premium, gold, silver, and bronze, and the number of service profiles for each user class may be different. For example, four service profiles (eg, USG, nrtPS, rtPS, ertPS) may be assigned to premium users, and three service profiles may be assigned to gold users. In addition, even in the same type of service profile, QoS parameters (transmission rate, data size, latency, jitter, etc.) may be different according to user classes. Here, the policy server 140 and the ASN may use a Common Open Policy Service (COPS) or a Radius or Diameter interface.

The system manager 160 transmits information related to a network configuration to the ASN and manages the control station 130 and the base station 120 configuring the ASN. According to the present invention, a PDF may be mounted on the system manager 160. In this case, the system manager 160 may transmit the QoS mapping information and the CS rule inputted by the operator (or operator) to the control station 130. Provided to the base station 120.

The control station 130 transmits the traffic from the core network to the base station 120, and transmits the traffic from the base station 120 to the core network. Here, the control station 130 manages a service flow (SF), a connection, and mobility for each terminal. Here, a unique service flow is generated for each uplink and downlink connection. In accordance with the present invention, the control station 130 manages the QoS mapping information and CS rules received from the policy server 140 or other network component (with a PDF) in the form of a mapping table. When the DSA triggering for a specific terminal is requested from the AAA 150, the control station 130 generates a service flow for the terminal using the mapping table, and transmits a service flow identifier to the base station 120. Request a DSA trigger.

The base station 120 transmits the traffic from the control station 130 to the terminal 110, and transmits the traffic from the terminal 110 to the control station 130. Here, the base station 120 is connected to the control station 130 by wire and wirelessly connected to the terminal 110. The base station 120 performs scheduling based on MAC (Media Access Control) layer QoS to allocate resources to the terminal 110. According to the present invention, the base station 120 manages the QoS mapping information and the CS rule received from the policy server 140 or other network component (PDF mounted) in the form of a mapping table. When a DSA trigger is requested from the control station 130, the base station 120 obtains a QoS parameter set from the mapping table using a service flow identifier from the control station 130, and uses the QoS parameter set. By performing the DSA procedure with the terminal. As such, the service flow is generated through the DSA procedure, and the activation of the actual service flow is performed through the DSC procedure. That is, when there is a DSC-REQ from the terminal, a TCID (Traffic Connection IDentifier) is assigned and traffic is communicated using the TCID.

On the other hand, ASN manages the state (eg, null, active, sleep, idle) of the terminal, when the terminal fixedly assigned a service flow transitions to the idle state, it can maintain only the SFID for the terminal. When the UE transitions from the idle state to the active state through the Quick Connection Setup (QCS), the SFID vs. TCID is transmitted to the UE through a ranging response (RNG-RSP) message, and the UE has already SFID and CS rules. And since it has QoS mapping information, it is possible to map and manage the TCID delivered to each SFID. Here, the TCID is uniquely allocated for each flow in the base station, but the SFID may be unique for each flow in the terminal.

The terminal 110 generates a Chinese New Year service flow by performing a DSA procedure with the base station 120 during initial access. When activation of a specific service flow is required, the terminal 110 receives a TCID by performing a DSC procedure with the base station 120 and communicates traffic using the TCID.

The network between the control station 110 and the base station 120 may be configured as an L2 (layer 2: internet) network or an L3 (layer 3: IP) network as shown.

Although not shown in FIG. 1, network components for assigning an IP address to the terminal (DH for simple IP, HA and FA for mobile IP), and names of network components (Network Access Identifier: NAI) and IP It is obvious that a DNS (Domain Name Server) is configured to manage the mapping relationship between addresses.

Prior to describing the operation, the input parameters and output parameters of the PDF are defined as follows.

First, the input parameter of the PDF may be 5 tuple (source & destination IP address, source & destination port number, protocol ID) or 6 tuple (5 tuple + Type of Service) and user class, etc. Here, the 5 tuple and Since 6 tuples are used to distinguish flows, they should be forwarded to the NE (e.g. ASN-GW or MS) responsible for the CS (ClasSification) rules (usually downlink side (ASN-> MS)). CS rules for flows are managed by the control station (ASN-GW), and CS rules for uplink (MS-> ASN) flows are managed by the terminal MS.

Next, the PDF output parameters are set of QoS parameters for realizing QoS for each layer, for example, IP parameter DiffServ Code Point (DSCP) and MAC QoS (eg IEEE 802.16 QoS parameters). And AN QoS (eg, Ethernet CoS: Class of Service). Here, as the IEEE 802.16 QoS parameters, traffic priority, maximum sustained rate, minimum reserved rate, maximum latency, grant interval, etc. There is this. The DSCP and QoS may not be delivered by the PDF, and the operator inputs a QoS class type vs. DSCP vs. CoS mapping table through WSM, etc., which is transmitted to the ASN-GW & BS. The ASN-GW marks the DSCP & CoS value according to the QoS class type for downlink packets and the BS for uplink packets. ASN_GW may remark that uplink traffic to ASN_GW-> core is marked in the BS.

Meanwhile, the present invention further proposes QoS parameters as shown in Table 1 in addition to the PDF output parameters defined above.

parameter Explanation Compression of IP Header and Compression Method 1) uncompressed 2) Payload Header Suppression (PHS) 3) Robust Header Compression (ROHC) Whether to use a Traffic Encryption Key (TEK) Security related items Pre-provisioned Per terminal If not Pre-provisioned, choose Provisioned, Admitted, Active by flow Provisioned: Create SFID only Admitted / Active: Assign TCID by performing CAC at initial connection Reliability Example: Target Error Rate Call Release Condition Duration threshold when the minimum reserved rate is not met Whether to perform retransmission scheme (ARQ, HARQ) Processing method when the number of active mode users of the serving base station exceeds a certain threshold 1) Transition the low priority among users who do not flow traffic for a certain time to sleep or idle mode, and allow the initial access user to be active mode. 2) After completing the initial connection, transfer the user to sleep mode. 3) After the initial connection is completed, the user transitions to the idle mode. 4) The serving base station compares the number of sleep mode users with a threshold value, and if the threshold value is not exceeded, transitions to the sleep mode. Transition to Idle Mode Availability of horizontal handover to other carriers' networks using the same wireless technology Vertical handover to other wireless networks using different radio technologies Maximum allowable number of DSC usages for each flow Allow flow timer for Active-> Provisioned and timer value Terminal-specific timers (sleep timer, idle timer) take precedence over flow timer. If there is no timer for each terminal, when the timers of all flows exceed the sleep transition (idle transition) timer value, the terminal may transition to the sleep (idle) mode.

In Table 1, 'Pre-Provisioned' indicates a mode for activating all service flows belonging to the terminal upon initial access. At this time, if the service flows are allowed through the CAC, not only the SFID but also the TCID is allocated. If any one of the service flows fails, the initial connection itself is failed.

2 illustrates a signal exchange between network entities in a broadband wireless communication system according to a first embodiment of the present invention. Here, the first embodiment illustrates a case where only one PDF exists in the network.

Referring to FIG. 2, the PDF of the WSM 230 manages output parameters and CS rules, which are directly calculated and input by a service provider in step 201, that is, QoS mapping information and CS rules, or policies or policies previously input by the service provider. While having a policy that depends on the wireless network, the operator inputs an input parameter, calculates and outputs QoS mapping information, and outputs the input or calculated QoS mapping information and CS rule to the control station 220. Here, the QoS mapping information is composed of a QoS parameter set mapped to a user class ID. In this case, the control station 220 transmits the QoS mapping information and the CS rule to the base station 210 in step 203, configures a mapping table using the QoS mapping information and the CS rule, and the base station 210 also A mapping table is configured using the QoS mapping information and the CS rule. Here, the PDF may transmit the QoS mapping information and the CS rule to the control station 220 and the base station 210. Here, the CS rule means a flow classification rule, and the system may generate a corresponding flow by dividing the flow according to the rule.

Then, when the terminal 200 enters the service network, the terminal 200 performs a ranging (RNG) procedure with the base station 210 in step 205 and performs a capability negotiation (SBC) procedure in step 207. After that, in step 209, the AAA 240 performs an authentication (PKM) procedure, in step 211, the base station 210 performs a registration (REG) procedure, and a BE service flow is generated for each of DL and UL, and the service is performed. Leverage the flow to allocate IP and complete initial network entry. In this case, after the AAA 240 performs an authentication procedure with the terminal 200 and determines that the terminal is a subscriber to which the service flow is fixedly allocated, the AAA 240 determines the user class ID of the terminal 200 in step 213. A DSA trigger request message including the message is transmitted to the control station 220. Upon receiving the DSA trigger request message, the control station 220 extracts a QoS parameter set mapped to the corresponding user class ID from the mapping table, and SFID for generating a QoS flow of the corresponding user through the extracted QoS parameter set. Allocate Here, there may be one or more QoS flows corresponding to the user class, and in this case, an SFID corresponding to each QoS flow may be allocated. Here, the SFID is an identifier for distinguishing a flow between the base station and the terminal.

In step 215, the control station 220 transmits a DSA request message to the terminal 200 using the user class ID and the SFID assigned to the terminal 200. In other words, the control station 220 transmits the user class ID and the SFID assigned to the terminal 200 to the base station 210, and the base station 210 transmits the user class ID and the mapping table. It is determined that a provisioned QoS flow needs to be generated for the corresponding SFID, and a DSA request message including the SFID is generated and transmitted to the terminal 200, thereby generating a provisioned QoS flow without allocating a TCID. In this case, when it is necessary to generate an Admitted or Active flow for the SFID, the base station 210 allocates a TCID only when allowed by the CAC by performing a CAC, and then includes the assigned SFID and TCID. The DSA request message is generated and transmitted to the terminal 200 to generate an Admitted or Active flow. That is, the Admitted or Active QoS flow is generated only when allowed by the CAC, and the provisioned QoS flow is generated when rejected. In this case, there is no need to perform a dynamic service change procedure (hereinafter, referred to as 'DSC') for the TCID allocation.

In step 217, the terminal 200 transmits a DSA response message to the control station 220. In other words, the terminal 200 transmits a DSA response message to the base station 210, and the base station 210 transmits the DSA response message to the control station 220. In this case, the control station 220 transmits a DSA trigger response message to the AAA 240 to perform accounting in step 219, and transmits a DSA Ack message to the terminal 200 in step 221. In other words, the control station 220 transmits the DSA Ack message to the base station 210, and the base station 210 transmits the DSA Ack message to the terminal 200. This completes the generation of the QoS flow. If the QoS setting is made through the policy server (PDF) rather than AAA or WSM, the DSA trigger response message is also notified to the policy server. In the case of proceeding through the AAA or the WSM, the DSA interworking procedure for generating the QoS flow is performed before the IP allocation procedure, and if the process is performed through the policy server, the IP may be used as the terminal identifier. Make sure

Here, when the user of the terminal 200 selects a specific QoS service flow, that is, to activate a specific QoS service flow, the terminal 200 sends a DSC request message including the corresponding SFID. It may be transmitted to the base station 210. In this case, the base station 210 may perform a CAC, allocate a TCID only when allowed by the CAC, and then generate and transmit a DSC response message including the assigned SFID and the TCID to the terminal 200. have. That is, the Admitted or Active QoS flow is generated only when allowed by the CAC, and when the rejection is rejected, the UE 200 may notify that the QoS service flow cannot be activated. Here, activation of a specific QoS service flow for the terminal 200 may be performed by the base station 210 transmitting a DSC request message including the corresponding SFID to the terminal 200. For example, this is the case that a call reception to the terminal 200 is received. In this case, the base station 210 allocates a TCID and then sends a DSC request message including the corresponding SFID and the assigned TCID. By generating and transmitting to the terminal 200, an Admitted or Active QoS flow can be generated.

3 illustrates a signal exchange between network entities in a broadband wireless communication system according to a second embodiment of the present invention. Here, the PDF can be executed in multiple steps, and the second embodiment shows a case where two PDFs exist in a network. This multi-level PDF is a core technology for handoff or roaming between operators using different networks or other wireless technologies.

Referring to FIG. 3, the PDF of the WSM 330 manages output parameters and CS rules, which are directly calculated and input by the service provider in step 301, that is, QoS mapping information and CS rules, or the policy or policy previously input by the service provider. If the operator has a policy that depends on the wireless network, the service provider inserts the intermediate output parameter, calculates and outputs the QoS mapping information, and outputs the input or calculated QoS mapping information and the CS rule to the control station 320. Here, the QoS mapping information is composed of a QoS parameter set mapped to a service profile ID. Here, the service profile ID is an identifier for distinguishing the QoS parameter set. In this case, the control station 320 transmits the CS rule and QoS mapping information to the base station 310 in step 303, configures a mapping table using the CS rule and QoS mapping information, and the base station 310 also A mapping table is configured using the CS rule and QoS mapping information. The PDF may transmit the CS rule and QoS mapping information to the control station 320 and the base station 310. Here, the CS rule means a flow classification rule, and the system may generate a corresponding flow by dividing the flow according to the rule.

Thereafter, when the terminal 300 enters the service network, the terminal 300 performs a ranging (RNG) procedure with the base station 310 in step 305 and performs a capability negotiation (SBC) procedure in step 307. After that, in step 309, the AAA 340 performs an authentication (PKM) procedure, and in step 311, the base station 310 performs a registration (REG) procedure. At this time, the AAA (340) after performing the authentication procedure with the terminal 300, calculates the priority and performance related (throughput, latency, reliability) intermediate output parameters that are not dependent on the wireless network, In step 313, a DSA trigger request message including the calculated intermediate output parameter, that is, one or more service profile IDs for the user, is transmitted to the control station 320. Upon receiving the DSA trigger request message, the control station 320 extracts a QoS parameter set mapped to a corresponding service profile ID from the mapping table, and SFID for generating a QoS flow of a corresponding user through the extracted QoS parameter set. Allocate Here, the SFID is an identifier for distinguishing a flow between the base station and the terminal.

In step 315, the control station 320 transmits a DSA request message to the terminal 300 using the one or more service profile IDs and the SFID assigned to the terminal 300. In other words, the control station 320 transmits the at least one service profile ID and the assigned SFID to the base station 310, and the base station 310 corresponds to the at least one service profile ID and the mapping table. After determining that a provisioned QoS flow needs to be generated for an SFID, a DSA request message including the SFID is generated and transmitted to the terminal 300 to generate a provisioned QoS flow that does not allocate a TCID in advance. Here, when it is necessary to generate an Admitted or Active flow for the SFID, the base station 310 performs a CAC and allocates a TCID only when allowed by the CAC, and then includes the assigned SFID and TCID. The DSA request message is generated and transmitted to the terminal 300 to generate an Admitted or Active flow. That is, the Admitted or Active QoS flow is generated only when allowed by the CAC, and the provisioned QoS flow is generated when rejected. In this case, it is not necessary to perform the DSC procedure for assigning the TCID later.

In step 317, the terminal 300 transmits a DSA response message to the control station 320. In other words, the terminal 300 transmits the DSA response message to the base station 310, and the base station 310 transmits the DSA response message to the control station 320. In this case, the control station 320 transmits a DSA trigger response message to the AAA 340 in step 319, and transmits a DSA Ack message to the terminal 300 in step 321. In other words, the control station 320 transmits the DSA Ack message to the base station 310, and the base station 310 transmits the DSA Ack message to the terminal 300. This completes the generation of the QoS flow.

In this case, when the user of the terminal 300 selects a specific QoS service flow, that is, to activate a specific QoS service flow, the terminal 300 sends a DSC request message including the corresponding SFID. The base station 310 may transmit. In this case, the base station 310 may perform a CAC, allocate a TCID only when allowed by the CAC, generate a DSC response message including the assigned SFID and the TCID, and transmit the TCID to the terminal 300. have. That is, the Admitted or Active QoS flow is generated only when allowed by the CAC, and when the rejection is rejected, the UE 300 can be notified that activation of the QoS service flow is impossible. In this case, activation of a specific QoS service flow for the terminal 300 may be performed by the base station 310 transmitting a DSC request message including the corresponding SFID to the terminal 300. For example, this is the case that a call reception to the terminal 300 is received. In this case, the base station 310 allocates a TCID and then sends a DSC request message including the corresponding SFID and the assigned TCID. By generating and transmitting to the terminal 300 may generate an Admitted or Active QoS flow.

FIG. 4 illustrates a static QoS setting method for initial access of a terminal in a control station of a broadband wireless communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, in step 401, the control station checks whether CS rules and QoS mapping information are received from the PDF. Here, the QoS mapping information is an output parameter calculated using an input parameter, and may be composed of a QoS parameter set mapped to a user class ID, or calculated using an intermediate output parameter. As an output parameter, it may consist of a QoS parameter set mapped to a service profile ID. When the CS rule and QoS mapping information are received, the control station transmits the CS rule and QoS mapping information to a base station in step 403 and configures a mapping table using the CS rule and QoS mapping information. Here, the PDF may transmit the CS rule and QoS mapping information to the control station and the base station. In this case, the control station does not have to transmit the CS rule and QoS mapping information to the base station. Here, the CS rule means a flow classification rule, and the system may generate a corresponding flow by dividing the flow according to the rule.

In step 405, the control station checks whether a DSA trigger request message including a user class ID or a multiple service profile ID of a specific terminal is received from the AAA. When the DSA trigger request message including the user class ID is received, the control station proceeds to step 407 to extract a QoS parameter set mapped to the user class ID from the mapping table, and to extract the extracted QoS parameter set. Assign SFID for creating QoS flow of the user. Here, there may be one or more QoS flows corresponding to the user class, and in this case, an SFID corresponding to each QoS flow may be allocated. Alternatively, when the DSA trigger request message including the multiple service profile ID is received, the control station extracts a QoS parameter set mapped to the service profile ID from the mapping table in step 407, and extracts the extracted QoS parameter. The set may allocate the one or more SFIDs for generating a QoS flow of a corresponding user.

Thereafter, the control station transmits the allocated SFID to the base station in step 409 and requests the terminal to perform a DSA procedure. In step 411, the control station determines whether a response to performing the DSA procedure is received from the base station. When receiving a response to performing the DSA procedure, the control station proceeds to step 413 and sends a DSA trigger response message to the AAA. And transmits the DSA procedure performing Ack to the base station.

The control station then terminates the algorithm according to the invention.

FIG. 5 is a flowchart illustrating a static QoS setting method for initial access of a terminal in a base station of a broadband wireless communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 5, in step 501, the base station determines whether CS rules and QoS mapping information are received from the control station or PDF. Here, the QoS mapping information is an output parameter calculated using an input parameter, and may be configured as a QoS parameter set mapped to a user class ID, or as an output parameter calculated using an intermediate output parameter, and assigned to a service profile ID. It may also consist of a mapped QoS parameter set. When the CS rule and the QoS mapping information are received, the base station configures a mapping table using the CS rule and the QoS mapping information in step 503. Here, the CS rule means a flow classification rule, and the system may generate a corresponding flow by dividing the flow according to the rule.

Thereafter, the base station performs a ranging (RNG) procedure and a capability negotiation (SBC) procedure with the terminal entering the service network in step 505, and proceeds to step 507 with a user class ID or a multiple service profile ID from the control station. It is checked whether one or more SFIDs allocated to the terminal are received. When a user class ID or multiple service profile ID and one or more SFIDs assigned to the terminal are received, the base station provides a provisioned QoS flow for the corresponding SFID through the user class ID or multiple service profile ID and the mapping table in step 509. If it is determined whether to generate a and a provisioned QoS flow for the corresponding SFID is determined, by generating a DSA request message including the SFID sent to the terminal, that is, performing a DSA procedure, TCID Creates a provisioned QoS flow that does not pre-assign. Alternatively, when generating an Admitted or Active flow for the corresponding SFID, the base station performs a CAC, allocates a TCID only when allowed by the CAC, and then sends a DSA request message including the assigned SFID and TCID. By generating and transmitting to the terminal generates an Admitted or Active flow. That is, the Admitted or Active QoS flow may be generated only when allowed by the CAC, and the provisioned QoS flow may be generated when rejected.

Subsequently, the base station allocates a TCID when activation of a specific service flow of the terminal is requested by the call reception service request to the terminal or the terminal, and transmits the assigned TCID to the terminal to correspond to the service flow. Can be activated.

The base station then terminates the algorithm according to the invention.

FIG. 6 is a flowchart illustrating a static QoS setting method for initial terminal access in AAA of a broadband wireless communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 6, in step 601, the AAA performs an authentication procedure with a terminal entering a service network, and then, in step 603, an ASA triggers a DSA trigger request message including a user class ID of the terminal. Send to the control station. Alternatively, the AAA calculates the priority and performance related intermediate output parameters corresponding to the terminal in step 603, and calculates the calculated intermediate output parameters, that is, at least one service profile ID for the user. A DSA trigger request message including a may be transmitted to the control station. Thereafter, the AAA ends the algorithm according to the present invention after receiving the DSA trigger response message from the control station in step 605. Here, a matching parameter (for example, bandwidth) may exist in the intermediate output parameter and the output parameter.

Meanwhile, in the embodiment according to the present invention, the QoS flows are generated through the DSA procedure as many as the number of service flows, and all of the service flows must be activated at the initial access. That is, the terminal should be assigned TCIDs for all service flows, and if one service flow is not activated, the terminal will fail initial access.

On the other hand, when the load of the base station is large, the base station may be forced to change to the provisioned flow by performing a DSC procedure with the corresponding terminal for the service flow having a lower priority among the active service flows (Active). That is, the TCID can be forcibly released.

Meanwhile, the terminal and the base station may perform state transition by using a timer for each flow. For example, when there is no traffic for a predetermined time in an active state, a DSC procedure may be performed on a corresponding service flow to force change to a provisioned flow.

Meanwhile, in the embodiment according to the present invention, after completion of the authentication procedure, QoS related information delivered from the AAA to the control station may vary depending on the location of the PDF. For example, when the PDF is located in the WSM as shown in FIG. 3, the QoS related information transmitted from the AAA to the control station may be composed of one user class information or several different QoS class types which are input parameters of the PDF. If the PDF is also located in the AAA as shown in FIG. 4, the QoS related information transmitted from the AAA to the control station may be configured as QoS mapping information which is a result parameter of the PDF.

If the PDF is located in the WSM, modify the PDF in the WSM. For example, through the WSM, a service provider may modify QoS related information corresponding to a corresponding user class or QoS class type, that is, QoS mapping information, and transmit the modified QoS related information to a control station so that the control station may know in advance. do. Alternatively, the PDF may be modified in the CSN and the changed PDF information may be transmitted to the control station, and the policy server may modify the PDF and transmit the PDF to the control station through the WSM.

On the other hand, the CSN and the control station communicate with each other by using a flow-specific name tag (for example, PRID). For example, the control station attaches the name tag to the DSA trigger response message and sends it to the AAA. The control station and the base station communicate using a name tag called SFID as in the embodiment of the present invention. Here, the PRID (PRovisioning instance IDentifier) is a value for identifying an instance of the policy class, one PRID per control station is associated with one service flow.

On the other hand, the operator may change the policy, that is, PDF in the time zone when the user is least. When the policy is changed, a new PDF is applied to users attempting initial access, and the QoS mapping information and CS rule of the user are retained for non-null users who have already completed initial access. The new PDF results can be applied by either leaving or initial triggering all existing users.

On the other hand, abnormal cases such as failure of DSx procedure are handled as follows. That is, it can be processed by delivering a predetermined message to the user such as a reconnection request message or a system error message, and then proceeding with the corresponding matter (QoS flow request or deletion or change).

On the other hand, when the terminal transitions to the idle state in the active state, the serving base station and the control station continues to manage the CS rules and QoS mapping information for all flows of the terminal immediately before the idle state. Even if a terminal in an awake or sleep state moves to another subnet, the anchor control station (or FA control station) is not changed. In this case, the CS rule and QoS mapping information for the terminal are delivered to a new serving base station through tunneling or L2 extension. When the terminal in the idle state moves to another subnet, the anchor control station is changed, but the terminal maintains the SFID. The CS rule and QoS mapping information for the terminal is transmitted from an old anchor control station to a new anchor control station. Here, the same SFID value and QoS information are transferred from the previous anchor control station to the target anchor control station. In this case, the QoS information is a user class ID or service profile ID, which is information of a type that is overlooked by the AAA in place of QoS mapping information when the control station operates with the same AAA-control station interface rule. . Alternatively, even if the control station or the base stations operating under the same PDF may be provided with a semi-dynamic QoS and the static QoS according to the present invention, the QoS information is considered It should be CS rule & QoS mapping information.

On the other hand, when AAA (which may include some of the PDF functionality) moves to another network, the anchor control station is changed in all cases, regardless of whether it is active mode or idle mode. At this time, if the PDF is a little different, since it is not allowed to change the QoS mapping information by the DSC procedure in the case of the static QoS, the corresponding terminal must proceed with the initial access procedure again.

Meanwhile, by translating AAAs between AAAs having different user class classifications, the charging information of the previous AAA can be converted according to the charging policy of the target AAA.

On the other hand, the charging policy is basically to receive money only for each transfer or the portion used in the target network, and the charging method of the target network is as follows. How the target AAA receives money from the former AAA operator by calculating the billing and notifying the previous AAA based on the usage time and amount of usage per charging unit (eg service flow) of the target control station, and the target AAA usage time and amount Only the former AAA is notified to the former AAA, and the former AAA calculates the billing using this and pays the target AAA management service provider only as much as used by the target control station.

Meanwhile, although embodiments according to the present invention are described as AAA requesting the DSA trigger to the control station, in another embodiment, the WSM may request the DSA trigger to the control station. Since WSM does not manage user classes on its own, it is not possible to manage DSA and QoS profiles differently for each user class. However, since it is possible to know whether the terminal is a mobile terminal or a fixed terminal through the registration procedure (MS_init REG) during initial access, the number of DSAs and the QoS profile may be differently allocated. In another embodiment, a static OoS setup may be performed integrally in the policy server (PDF) that determines the QoS policy. That is, at initial access, the AAA (or SPR) triggers the policy server after the authentication procedure, or after the terminal IP assignment, the control station triggers the policy server so that at least one per-flow QoS information allowed for the corresponding terminal and QoS setting may be performed by passing the CS rule to the control station. In general, the policy server does not manage the terminal identifier, so it should contact another NE (eg AAA or SPR). Because terminal IP address is dynamically assigned, it is managed by HA (Home Agent), but it is difficult to manage in SPR linked with Policy Server, and NAI is easy to manage in SPR. Or fake NAI is expected to be used as a terminal identifier.

Hereinafter, the active state in the awake mode, the sleep mode, the idle mode and the per-flow mode in the per-user mode, the allowed mode Let's take a look at how to operate the state, provisioned state together.

The active state refers to a state in which a service flow identifier (SFID), a traffic connection identifier (TCID), and a radio resource have been allocated by the CAC. The permission state refers to a state in which a service flow IDentifier (SFID) and a traffic connection IDentifier (TCID) are allocated and a radio resource is reserved, but a radio resource is not allocated. In addition, the ready state means a state in which only the QoS parameter and the CS rule information are maintained without being assigned the SFID but the TCID. Only reserved and unallocated resources can be used for best effort (BE) flows.

You can manage timers for state transitions (Active → Admitted, Active → Provisioned, admitted-> provisioned) for all flows.

Each service flow mode operates as follows according to a user mode. When the terminal is in the awake mode, the operation for the service flow mode is as described above, and when the terminal is in the sleep mode, the active mode flow only reserves resources and does not allocate resources during the sleep period, and during the listening period. You can also allocate resources. When the terminal is in the idle mode, the per-flow mode in the awake state is stored, and both resource reservation and allocation are released. When the system transitions from the idle mode to the awake or sleep mode, it returns to the stored flow-by-flow mode. If the existing flow-by-flow mode is active or allowed, CAC is performed. The flow state transitions to the ready state by the system and the terminal.

Meanwhile, in the sleep mode, transmission of bearer traffic may be allowed at a communication interval.

Meanwhile, although an embodiment according to the present invention has been described as setting a QoS parameter set for each service flow, the QoS parameter set may be differently set according to a data type even in the service flow. For example, among various types of data transmitted through one service flow, there is data that should not be lost because it is relatively important. In this case, since a relatively high level of QoS must be guaranteed for important data, the QoS level for each data type is required. You need to set it differently. As another example, there may be multiple sessions (voice, video, etc.) in one service flow. In this case, it is necessary to set QoS differently for each session.

As such, when a QoS parameter set is set for each data type, a parameter set for each data type may be recorded in a corresponding message (eg, DSA-REQ) in an array form. In this case, the first array may be provided in full as a reference QoS parameter set, and the remaining arrays may record only parameters different from the reference QoS parameter set. In addition, if there are QoS parameters (eg, whether TEK is applied or HARQ retransmission) separately applied for each data type in addition to the QoS parameters that are commonly applied, these QoS parameters may be separately recorded for each data type.

Meanwhile, the AAA may transmit a plurality of service flow identifiers in one transmission message when transmitting a service flow identifier for the corresponding terminal to the control station. Similarly, when the control station requests DSA generation from the base station, the AAA may transmit a plurality of service flow identifiers in one transmission message. It is possible to transmit the service flow identifier of, and likewise allows the base station to perform call processing for a plurality of service flows in one DSA message even when performing the DSA procedure with the terminal through the air (air). For example, if 10 service flows per terminal should be generated upon initial access, select a specific service flow as a reference and describe both QoS parameters and CS rules for the flows, and the QoS parameters and CS rules of the remaining service flows. It is also possible to optimize the size of the DSA-REQ message by describing only the parts that differ from the reference parameter. In this case, a plurality of service flow information exists in an arrangement form in one message.

Meanwhile, the policy server may transmit service flow identifiers or QoS parameter sets and CS rules for the terminal to the control station. Specifically, after the authentication process is successful and the registration process is completed, ASN_GW delivers the user identifier to the Policy Server, and the Policy Server sends the user identifier to the SPR to obtain user information about the user. Proceed by sending flow identifiers or QoS parameter sets and CS rules. The time to send the user identifier to the policy server may be before or after the IP assignment process, or may be when the IP CAN session establishment procedure is performed between the anchor ASN_GW and the policy server after IP assignment.

Meanwhile, the charging rule may be the same as the CS rule, or may be different. The subject who delivers the billing rule is set up by the operator through the WSM and transferred to the control station like the CS rule, the AAA is forwarded to the ASN, or the policy server manages the billing policy together and the policy server forwards it to the ASN or the terminal itself. SIM cards, etc. can be created and managed. In the case of the CS rule, only the ASN may be managed for the DL, and only the terminal may be managed for the UL. In the charging rule, it depends on whether the subject of statistics collection is an ASN or a terminal. If the ASN is the subject, both the DL / UL is managed by the ASN, and if the terminal is the subject, the terminal is managed.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a diagram illustrating a network configuration according to an embodiment of the present invention;

2 is a diagram illustrating signal exchange between network entities in a broadband wireless communication system according to a first embodiment of the present invention;

3 is a diagram illustrating a signal exchange between network entities in a broadband wireless communication system according to a second embodiment of the present invention;

4 is a diagram illustrating a static QoS setting method for initial access of a terminal by a control station of a broadband wireless communication system according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a static QoS setting method for initial access of a terminal in a base station of a broadband wireless communication system according to an embodiment of the present invention; and

FIG. 6 is a diagram illustrating a static QoS setting method when a terminal initially accesses in AAA of a broadband wireless communication system according to an exemplary embodiment of the present invention.

Claims (25)

In the method of providing a static (Quality of Service) at the base station of the broadband wireless communication system, Generating a mapping table by receiving at least one of a CS (ClasSification) rule and QoS mapping information from a control station or a system manager equipped with a PDF (Policy Decision Function); Checking whether one or more service flow identifiers assigned to the terminal are received from the control station while performing an initial access procedure with the terminal entering the service network; When the service flow identifier is received, generating a QoS flow by performing a dynamic service add (DSA) procedure with the terminal for each service flow identifier using the mapping table. Characterized in that. The method of claim 1, The QoS mapping information is a QoS parameter set of one or more service profiles to be assigned to the terminal. The method of claim 2, The QoS parameters do not pre-assign a traffic connection ID (TCID) for each flow if the IP header is compressed and compressed, whether a traffic encryption key (TEK) is used, whether a pre-provisioned mode is used, or not a pre-provisioned mode. Selection of one of Admitted mode and Active mode that pre-allocates provisioned mode and TCID, Reliability, Call Release Condition, Retransmission Scheme (ARQ, HARQ), Number of Active Mode Users in Serving Base Station If exceeded, the processing method, the possibility of horizontal handover to another operator's network using the same wireless technology, the possibility of vertical handover to another wireless network using different wireless technology, each flow Maximum allowable number of dynamic service changes (DSC) usage, flow timer for Active-> Provisioned mode, and other Characterized in that comprises at least one of Murray value. The method of claim 1, The initial access procedure performed with the terminal before the service flow identifier is received is a ranging procedure and a capability negotiation procedure. The method of claim 1, Wherein the one or more service flow identifiers are received together with a service profile identifier or a user class identifier. The method of claim 1, wherein the QoS flow generation process, When the service flow identifier is received, obtaining a QoS parameter for the corresponding service flow by referring to the mapping table; And when the obtained QoS parameter is a provisioned mode, generating a DSA request message including a corresponding service flow identifier for the corresponding service flow and transmitting the generated DSA request message to the terminal. The method of claim 1, Allocating a TCID (Traffic Connection ID) to the terminal when activation of a specific service flow of the terminal is required by the request of the terminal or a call destination service request to the terminal; And transmitting the assigned TCID to the terminal to activate the corresponding service flow. In the method of providing a static (Quality of Service) at the control station of a broadband wireless communication system, Receiving at least one of a CS (ClasSification) rule and a QoS profile from a system manager equipped with a policy decision function (PDF) to generate a mapping table, Checking whether a dynamic service add (DSA) trigger request is received for a specific terminal from AAA (Authentication, Authorization, Accounting); When the DSA trigger request is received, assigning a service flow identifier to a corresponding terminal by using the mapping table, and transmitting the allocated service flow identifier to a base station to request to perform a DSA procedure for the corresponding service flow identifier. Method comprising a. The method of claim 8, And the QoS mapping information is a QoS parameter set of one or more service profiles to be assigned to the terminal. The method of claim 9, The QoS parameters do not pre-assign a traffic connection ID (TCID) for each flow if the IP header is compressed and compressed, whether a traffic encryption key (TEK) is used, whether a pre-provisioned mode is used, or not a pre-provisioned mode. Selection of one of Admitted mode and Active mode that pre-allocates provisioned mode and TCID, Reliability, Call Release Condition, Retransmission Scheme (ARQ, HARQ), Number of Active Mode Users in Serving Base Station If exceeded, the processing method, the possibility of horizontal handover to another operator's network using the same wireless technology, the possibility of vertical handover to another wireless network using different wireless technology, each flow Maximum allowable number of dynamic service changes (DSC) usage, flow timer for Active-> Provisioned mode, and other Characterized in that comprises at least one of Murray value. The method of claim 8, The DSA trigger request includes a user class identifier for the terminal or several different QoS class types or one or more service profile identifiers to be assigned to the terminal. The method of claim 11, When requesting to perform the DSA procedure, together with the service flow identifier, a user class identifier or several different QoS class types for the terminal received through the DSA trigger request or one or more service profile identifiers to be allocated to the terminal are transmitted. Characterized in that. In the method of providing static (Quality of Service) in AAA (Authentication, Authorization, Accounting) of a broadband wireless communication system, Performing an authentication procedure with a terminal entering the service network; Dynamic service add including a user class identifier or several different QoS class types or one or more service profile identifiers to be allocated to the terminal to the control station. And a method of transmitting a trigger request. In the apparatus for providing static (Quality of Service) in a broadband wireless communication system, A system manager equipped with a PDF (Policy Decision Function) for providing at least one of a CS (ClasSification) rule, QoS mapping, and service flow identifier information to a control station and a base station; AAA (Authentication, Authorization, Accounting) for transmitting a DSA trigger request for the terminal to the control station after performing an authentication procedure with the terminal entering the service network, The CS rule and QoS mapping information are managed in the form of a mapping table, when a DSA trigger request for the terminal is received, a service flow identifier is allocated to the corresponding terminal using the mapping table, and the allocated service flow identifier is assigned. The control station transmitting to the base station and requesting to perform a DSA procedure for a corresponding service flow identifier; The CS rule and QoS mapping information are managed in the form of a mapping table, and during the initial access procedure with the terminal, one or more service flow identifiers assigned to the terminal are received from the control station, and the received service flow identifier is received. The base station for generating a QoS flow by obtaining a QoS parameter from the mapping table by using, and performing a DSA procedure with the terminal for each service flow identifier using the obtained QoS parameter. The method of claim 14, wherein the base station, And performing a dynamic service change (DSC) procedure with the terminal to activate a corresponding service flow. The method of claim 15, wherein the base station, When activation of a specific service flow of the terminal is requested by the request of the terminal or a call destination service request to the terminal, a TCID (Traffic Connection ID) is allocated to the terminal, and the assigned TCID is transmitted to the corresponding terminal. And transmitting the service flow to activate the service flow. The method of claim 14, The QoS mapping information may include a user class identifier for each terminal or several different QoS class types vs. a QoS parameter set of one or more service profiles to be allocated to the terminal, and one or more service profile identifiers vs. to be allocated to the terminal. And one of a set of QoS parameters of said service profiles. The method of claim 17, The DSA trigger request may include one of a user class identifier per terminal, a plurality of different QoS class types, or one or more service profile identifiers to be allocated to the corresponding terminal. The method of claim 17, The QoS parameters do not pre-assign a traffic connection ID (TCID) for each flow if the IP header is compressed and compressed, whether a traffic encryption key (TEK) is used, whether a pre-provisioned mode is used, or not a pre-provisioned mode. Selection of one of Admitted mode and Active mode that pre-allocates provisioned mode and TCID, Reliability, Call Release Condition, Retransmission Scheme (ARQ, HARQ), Number of Active Mode Users in Serving Base Station If exceeded, the processing method, the possibility of horizontal handover to another operator's network using the same wireless technology, the possibility of vertical handover to another wireless network using different wireless technology, each flow Maximum allowable number of dynamic service changes (DSC) usage, flow timer for Active-> Provisioned mode, and other Device characterized in that it comprises at least one of a Murray value. The method of claim 14, wherein the control station, When the terminal of the terminal, which is fixedly assigned a service flow transitions to the idle state, maintains QoS information for all flows of the terminal immediately before the idle state, and maintains QoS information for the terminal. When the terminal moves to another subnet, the QoS information about the terminal is transferred to a new anchor control station, and when the terminal in an awake or sleep state moves to another subnet, Apparatus for transmitting QoS information to a new serving base station through tunneling (Lunneling) or L2 extension (extension). The method of claim 20, The QoS information is a user class identifier or multiple service profile identifier or CS (ClasSification) rule and QoS mapping information. The method of claim 14, And after performing an initial access procedure with the base station, the terminal generating a QoS flow by performing a DSA procedure with the base station. The method of claim 14, The QoS flow is managed in one of an active state, an admitted state, and a provisioned state. The system manager of claim 14, wherein Through the PDF, a QoS parameter set of one or more service profiles to be assigned to the terminal is calculated using a user class identifier for the terminal or several different QoS class types or one or more service profile identifier information to be assigned to the terminal. Device characterized in that. The method of claim 14, wherein the AAA, And at least one service profile information to be allocated to the terminal using a user class identifier or a plurality of different QoS class type information for the terminal through a PDF.

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