KR100885057B1 - APPARATUS AND FOR METHOD ACCOUNTING MULTICAST SERVICE OF HPi - Google Patents

Abstract

A method and apparatus for multicast service charging in a portable Internet system according to the present invention, the method comprising: generating, by the ACR, a multicast charging session according to a multicast service request of a first subscriber; Processing, by the ACR, multicast service charging information collected from the first RAS to which the first subscriber belongs according to a predetermined period; Adding a sub-session for the created multicast charging session when the ACR is requested a multicast service from a second subscriber; Processing, by the ACR, multicast service charging information collected from a second RAS to which the second subscriber belongs to a predetermined period; Deleting the subsession from the multicast charging session when the ACR is requested to stop service from the second one of the subscribers; The ACR manages a plurality of subscribers requesting the same multicast service among the multicast services as one charging session, including deleting the multicast charging session. Has the effect of reducing signaling.

Description

Method and device for billing multicast service of portable Internet system {APPARATUS AND FOR METHOD ACCOUNTING MULTICAST SERVICE OF HPi}

1 is a signal flow diagram illustrating a charging information management method according to the prior art.

2 illustrates a portable Internet system for performing charging information management according to an embodiment of the present invention.

3 is a signal flow diagram illustrating a multicast charging session generation and sub-session addition generation method in a portable Internet system according to an embodiment of the present invention.

4 is a signal flow diagram illustrating a multicast charging session and a subsession deletion method in a portable Internet system according to an embodiment of the present invention.

5 is a signal flow diagram illustrating a method for changing a QoS group of a multicast charging session in a portable Internet system according to an embodiment of the present invention.

6 illustrates a data structure for multicast charging session processing according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: Mobile Station (MS)

200: access control router (ACR)

300: Radio AcceSS Station (RAS)

400: AAA Server

The present invention relates to a multicast service charging method and apparatus for a portable Internet system.

As a prior art, Korean Patent Application No. 2004-97823 (filed Nov. 26, 2004) discloses an invention entitled "Method for managing billing information of a mobile Internet system".

Specifically, the present invention relates to a method for creating and managing a billing session for each service flow, wherein the billing session when the subscriber enters the portable Internet network and the subscriber entered further in the portable Internet system. Create an additional billing session for each generation, to process the billing information collected for each service flow, and to handle each billing termination for the subscriber's all service flows when the subscriber disconnects from the network. It is described.

1 is a signal flow diagram illustrating a charging information management method according to the prior art.

Referring to FIG. 1, a portable Internet network may perform an access point (AcceSS Point: hereinafter referred to as “AP”) for an access terminal (hereinafter referred to as “AT”) that is a portable Internet terminal. And a packet access router (Packet AcceSS Router: hereinafter referred to as 'PAR') 20 that performs the external agent function of the packet access routing function and the Mobile Internet Protocol (hereinafter, referred to as 'MIP') and the charging function. It consists of an AAA server 30 to perform.

In High Speed PerSonal Internet (HPi), the initial connection is used when AT (AcceSS Terminal) is connected to HPi network and IP address is assigned by DHCP at the end of initial connection. Alternatively, when the MIP initial registration procedure is performed and successful address assignment or MIP registration by the DHCP is completed, the charging procedure is started, and thereafter, the PAR 20 collects the charging information collected by the AP 10 for each flow. Then, the charging information collected periodically is transmitted to the AAA server 30 which is the charging server.

That is, when the HPi initial access procedure is completed (S11), the charging control in the PAR 20 is started for each subscriber.

At this time, the PAR 20 requests the charging information collected by the AP 10 to transmit the charging start information, and stores the charging information reflecting the result in the PAR 20 (S12).

Thereafter, a charging request message (HPiAccountingRequeSt) is generated and the charging information for starting charging is transmitted to the AAA server 30 (S13). At this time, the charging request message HPiAccountingRequeSt includes a session ID.

Thereafter, the AAA server 30 transmits a billing response message (HPiAccountingAnSwer) to the PAR 20 as a response to the billing start (S14), and at this time, the billing response message (HPiAccountingAnSwer) sends a billing intermediate reporting cycle and policy information. It is used for future billing information transfer.

The charging information transmission for each session and the entire session is started by the PAR 20 sending a charging information request message (AGI-req) to the AP 10 (S15). In this case, the AGI request message (AGI-req) includes interim and status ID (ContextID) information.

Accordingly, the AP 10 receiving the AGI request message (AGI-req) transmits the charging information for the associated session through the AGI response message (AGIrep) (S16). At this time, the AGI response message (AGI-rep) includes the number of octets transferred and the number of octets to be delivered (In / Out Octet) in addition to the interim and status ID (ContextID) information.

Next, the PAR 20 stores the AGI response message (AGI-rep) information in the storage space in the PAR 20 (S17), and then sends the AGI response message (AGI-rep) to the charging request message (HPiAccountingRequeSt). It passes to the AAA server 30 through (S18). In this case, the charging request message HPiAccountingRequeSt includes a session ID and a subsession ID.

The AAA server 30 delivers the result of the charging request to the PAR 20 through the charging response message HPiAccountingAnSwer (S19). At this time, whether to retransmit is determined according to the response.

In addition, when terminating the charging information collection by deleting the disconnection and service flow of HPi (S20), first transmit the AGI request message (AGI-req) for the termination of charging from the PAR 20 to the AP 10. In operation S21, the AP 10 sends an AGI response message (AGI-req) to the PAR 20 in response thereto (S22). Here, the AGI request message (AGI-req) and the AGI response message (AGIreq) includes Stop and Status ID (ContextID) information.

Next, the PAR 20 receiving the AGI response message (AGI-req) stores the related billing information (S23), and transfers the billing termination information to the billing request message (HPiAccountingRequeSt) and delivers it to the AAA server 30. (S24). In this case, the charging request message HPiAccountingRequeSt includes a stop and session ID information.

Finally, the AAA server 30 responds to the PAR 20 through the charging response message HPiAccountingAnSwer whether the normal charging information is received (S25).

However, since the billing method of the portable Internet system according to the related art is a method of processing billing information for each billing session according to each service flow, in order to apply billing for a multicast service, each multicast is applied. The billing session is created and managed for each service request.

For this reason, the billing method of the conventional portable Internet system has a problem in that, when a plurality of subscribers are provided with the same multicast service, each billing session processes redundant information and generates unnecessary memory resources and billing processing signaling. .

That is, in the mobile Internet system, when the multicast service user is smaller than the unicast user, the multicast charging can be handled as the unicast charging, but the number of users of the same multicast service increases and the existing service is increased. When managing the billing session for each flow, signaling for billing processing increases unnecessarily as much as the number of service flows, thereby wasting unnecessary memory resources.

Accordingly, an object of the present invention is to solve the above-mentioned problems according to the prior art, and an object of the present invention is to reduce unnecessary memory resources and charging processing signaling generated when a portable internet system performs a multicast service. A multicast service billing method and apparatus are provided.

According to an aspect of the present invention, there is provided a multicast service charging method of a portable Internet system, comprising: generating, by the ACR, a multicast charging session according to a multicast service request of a first subscriber; Processing, by the ACR, multicast service charging information collected from the first RAS to which the first subscriber belongs according to a predetermined period; Adding a sub-session for the created multicast charging session when the ACR is requested a multicast service from a second subscriber; Processing, by the ACR, multicast service charging information collected from a second RAS to which the second subscriber belongs to a predetermined period; Deleting the subsession from the multicast charging session when the ACR is requested to stop service from the second one of the subscribers; The ACR deleting the multicast charging session.

The processing of the charging information of the first subscriber by the ACR may include: generating a multicast charging session, transmitting a charging request message (McaSt_Start) for a multicast service to the AAA server, and corresponding response message; Receiving from the AAA server; Notifying the first RAS of a charging period for the multicast service and traffic information to be collected; Collecting multicast service usage traffic information of the first subscriber from the first RAS according to a predetermined charging period; Generating and updating charging session information for the first subscriber from the collected traffic information; And transmitting a charging session information according to the update to an AAA server and receiving a response message corresponding thereto.

The charging session information may include at least one of a packet number, an octet number, and a time at which a multicast charging session is provided to the portable Internet system.

The processing of the charging information collected from the second RAS by the ACR includes transmitting a sub-session addition request message (McaSt_Add) for the existing multicast charging session information to the AAA server, and sending a corresponding response message to the AAA server. Receiving from; Notifying a charging period and traffic information to be collected to the second RAS to which the second subscriber belongs; Collecting multicast service usage traffic information of the second subscriber from the second RAS according to a predetermined charging period; Generating and updating charging session information for the second subscriber from the collected traffic information; And transmitting a charging session information according to the update to an AAA server and receiving a response message corresponding thereto.

The sub-session addition request message may include traffic information collected from the previous charging information notification time to the present.

The traffic usage of all subscribers during the multicast service is a usage amount obtained by subtracting the unused traffic usage from the traffic usage collected for each predetermined charging period.

The deleting of the subsession by the ACR may include: generating a multicast service stop request from the second subscriber; Receiving missing traffic information from the second RAS; Deleting sub session information of the second subscriber who has requested to stop the multicast service among the multicast charging session information; And transmitting a multicast service deletion request message (McaSt_Delete) including the deleted sub session information among the multicast charging session information to the AAA server, and receiving a corresponding response message from the AAA server. It features.

The multicast service deletion request message may include traffic information collected from the previous charging information notification time to the present and missing traffic information on the corresponding subsession received from the RAS.

The deleting of the multicast charging session by the ACR may include: receiving a request for stopping a multicast service from the first subscriber; Receiving missing traffic information from the first RAS; Transmitting a stop request message (McaSt_Stop) for the multicast charging session information to the AAA server, and receiving a corresponding response message from the AAA server; And deleting the multicast charging session.

The traffic usage of a particular subscriber when the multicast service is suspended is characterized by a usage amount obtained by subtracting the unused traffic usage from the traffic usage collected from the previous charging cycle to the present.

The multicast service charging method of the portable Internet system may include: generating one QoS group in one multicast charging session when the QoS resources between the RAS and the ACR are the same for one multicast service; Dividing the multicast billing group according to the changed resource information when QoS resource information for the one multicast service is changed by a multicast service request from a plurality of subscribers; And differently charging the same traffic for each of the groups.

The multicast service charging method of the portable Internet system may include: receiving, by the ACR, a change request for allocation resource information from an arbitrary subscriber in an environment in which the charging group is divided according to the subscriber's resource information; The ACR further comprising moving a group of subsessions to a group of the requested resource information.

If the desired group does not exist in the multicast charging session, the ACR sends a request message (McaSt_Change) related to creation of a new group and movement of a subsession to the AAA server; And receiving, by the ACR, a response message corresponding to the request message, moving the group of the subsessions.

In the multicast service billing method of the portable Internet system, the request message (McaSt_Change) transmitted from the ACR to the AAA server may include information on the sub-session to be moved, which is composed of traffic information collected from a previous billing cycle to the present. It is characterized by including.

On the other hand, the portable Internet system for a multicast service according to another aspect of the present invention for achieving the above object, as a base station in a portable Internet system, a plurality of mobile terminal using a multicast service station located in the mobile Internet support cell (Mobile Station: A Radio AcceSS Station (RAS) which collects traffic information transmitted from the following 'MS' and includes multicast service QoS related information; Sub session of the multicast service billing session for the MS requesting the same service as the multicast service which is already being performed by managing the charging session and the billing information for the multicast service requested by the MS by accommodating the plurality of RASs ACR (AcceSS Control Router) managed by; And an AAA server for maintaining the MS-specific charging information from the multicast charging information provided from the ACR.

The ACR generates a multicast charging session according to the multicast service request of the first MS, and sets the multicast service charging information of the first MS collected from the first RAS to which the first MS belongs to a predetermined period. If the same service and the same service as the multicast service is requested from the second subscriber, adding the sub-session for the generated multicast billing session, the second collected by the second subscriber to the RAS belonging to the second; The subscriber may process the multicast service billing information of the subscriber at a predetermined cycle.

When the ACR generates a multicast charging session of the first subscriber, the ACR transmits a charging request message (McaSt_Start) for the multicast service to the AAA server, and receives a corresponding response message from the AAA server. And processing the multicast service charging information of the first MS.

When the ACR generates a multicast charging session for the first MS, the ACR notifies the first RAS of the charging period for the multicast service and the traffic information to be collected, and correspondingly is collected from the first RAS. And generating and updating charging session information for the first MS through the traffic information, and providing the update information to the AAA server.

When the ACR generates a sub session of the multicast charging session according to the multicast service request of the second MS, the ACR transmits a sub session addition request message (McaSt_Add) for the existing multicast charging session information to the AAA server. And after receiving a response message corresponding to the AAA server, processing the multicast service charging information of the second MS.

When the ACR generates a multicast subsession for the second MS, the ACR notifies the second RAS of the charging period for the multicast service and the traffic information to be collected, and correspondingly is collected from the second RAS. And generating and updating charging session information for the second MS through the traffic information, and providing the update information to the AAA server.

When the ACR is requested to stop the multicast service from one of a plurality of MSs managed by the same multicast service charging session, the ACR deletes the sub-session of the multicast charging session, and deletes all of the MSs except one. When the multicast service is requested to be stopped, the multicast charging session may be deleted.

The ACR, when the QoS resources between the RASs are the same for one multicast service, creates one QoS group in the one multicast charging session, and generates the one by multicast service requests from multiple MSs. When the QoS resource information for the multicast service is changed, the multicast charging group is divided according to the changed resource information, so that charging for the same traffic is different for each group.

The ACR moves a group of sub-sessions to a group of requested resource information when a request is made to change allocation resource information from an arbitrary subscriber in an environment in which the charging group is divided according to the resource information of the subscriber. It is done.

If the desired group does not exist in the multicast charging session, the ACR requests the AAA server to create a new group and move a subsession, and move the group of the subsession accordingly. .

Hereinafter, a multicast service charging method and apparatus of a portable Internet system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a portable internet system for performing charging information management according to an embodiment of the present invention.

Referring to FIG. 2, the portable Internet system includes a mobile station 100, a radio access station 200, and an access control router 200. AcceSS Control Router: (hereinafter referred to as 'ACR') and the AAA server 400 may be configured.

Here, the MS 100 refers to a terminal device in which a subscriber accesses a portable Internet network and uses a multicast service.

The RAS 200 performs a function of wirelessly transmitting a message received from the ACR 300 to a plurality of MSs 100 located in a portable Internet support cell as a base station in a portable Internet system.

The RAS 200 collects traffic information transmitted to the MS 100 through an air section and includes information related to QoS.

The ACR 300 is a device for connecting an access network and a core network of a portable Internet system. The ACR 300 accommodates a plurality of RASs 200 and performs a packet access router function to connect the RASs 200 to a multicast service. Manages billing session and billing information. That is, the ACR 300 updates billing session creation and billing information in association with the AAA server 400 to be described later according to the multicast service request of the subscriber, and billing information to the AAA server 400 according to the service stop request of the subscriber. Send a to delete the multicast charging session.

The AAA server 400 performs billing processing for each subscriber including information on the portable Internet subscriber, and is in charge of a billing server function for performing billing processing according to service usage. The AAA server 400 may maintain billing information for each subscriber from the multicast billing information and operate in conjunction with the billing server.

The portable Internet system having such a configuration is largely performed in six steps.

First, the portable Internet system has a first step of creating a multicast charging session in response to a subscriber request for a multicast service, and has a second step of processing charging information according to a requested multicast service according to a predetermined period. .

When the multicast service is requested from another subscriber, the portable Internet system has a third step of adding a sub-session according to the service request of another subscriber to the already created multicast charging session, and then stops service from one subscriber. When the request is received, there is a fourth step to delete the subsession from the multicast accounting session and notify it.

Next, the mobile Internet system has a fifth step of deleting and notifying the multicast charging session and a last step of changing the charging group when it is determined that resource information such as QoS has been changed for the same multicast service. .

Next, the charging information management method of the portable Internet system having such a configuration and configuration operation will be described in detail through the attached signal flow chart.

3 is a signal flow diagram illustrating a multicast charging session generation and sub-session addition generation method in a portable Internet system according to an embodiment of the present invention.

Referring to FIG. 3, when the ACR 300 is not registered in the multicast tree, the MS 100 included in the ACR 300 subnet requests a multicast service and registers the multicast tree. 300 generates a multicast charging session (S101).

In addition, the ACR 300 generating the initial multicast charging session transmits a charging request message (McaSt_Start) for the multicast service to the AAA server 400 (S102), and a charging response message (AccountingAnSwer) corresponding to the corresponding message. ) Is provided from the AAA server 400 (S103), the charging cycle and the traffic information to be collected to the RAS 200 through the charging cycle collection message (Accountinglnd) (S104).

The ACR 300 performing the above process receives the charging traffic information coming from the external network into the ACR 300, that is, the traffic information generated according to the use of the multicast service of the MS 100 requesting the multicast service. Collecting through the step 200, the multicast billing session information for the corresponding MS (100) requesting the multicast service is updated (S105). In this case, the multicast charging session information may be a number of packets, an octet, and a time when the multicast charging session is established.

The ACR 300 includes the updated multicast charging session information according to a predetermined charging cycle in the charging request message (McaSt_Interim) and transmits it to the AAA server 400 (S106), and sends a corresponding response message to the AAA server 400. ) Is provided from (S107).

On the other hand, the RAS 200 notifies the ACR 300 of the missing traffic information when the traffic missing from the ACR 300 occurs within the preset charging period, and the ACR 300 sends the AAA server 400 to the AAA server 400. The information may be transmitted by including missing packet information of the corresponding subsession.

Through this process, the ACR 300 including the multicast charging session may receive a request for the same multicast service from another MS 100 (S108).

Accordingly, the ACR 300 updates the multicast charging session by adding a sub session to the multicast charging session according to the request (S109), and sends a sub-session addition request message (McaSt_Add) for the existing multicast charging session information to the AAA server. The transmission to 400 (S110). Here, the sub-session addition request message includes traffic information collected from the previous charging information notification time to the present.

Next, when the ACR 300 receives the response message corresponding to the sub-session addition request message from the AAA server 400 (S111), the ACR 300 charges the RAS 200 to which the MS 100 requesting the additional multicast service belongs. Period and informs the traffic information to be collected (S112).

In addition, the ACR 300 performing the process of adding the sub-session to the multicast charging session in this manner collects the charging traffic information coming from the external network to the ACR 300, updates the corresponding multicast charging session information, and is preset. The multicast charging session information updated according to the charging cycle is included in the charging request message (McaSt_Interim) and transmitted to the AAA server 400 (S113), and a corresponding response message is provided from the AAA server 400 (S114). .

4 is a signal flow diagram illustrating a multicast charging session and a subsession deletion method in a portable Internet system according to an embodiment of the present invention.

Referring to FIG. 3, when the ACR 300 receives a multicast service request from a plurality of MSs 100, the ACR 300 maintains a plurality of subsessions for an initially set multicast charging session.

In this state, when the ACR 300 receives the multicast service stop request from any one MS 100 as shown in FIG. 4 (S201), the ACR 300 performs a subsession in the multicast charging session according to the request. Perform the procedure to delete.

That is, if a missing packet is generated from the RAS 200 according to the stop of the multicast service requested from any one MS 100, and the missing traffic information is provided from the RAS 200 to the ACR 300 (S202). In step S203, the entire billing session information is updated by deleting sub-session information of the MS 100 requesting to stop the multicast service among the multicast billing session information.

In addition, the ACR 300 transmits a multicast service deletion request message (McaSt_Delete) including the deleted subsession information among the existing multicast charging session information to the AAA server 400 (S204), and sends a response message corresponding thereto. It is provided from the AAA server 400 (S205). Here, the multicast service deletion request message includes traffic information collected from a previous charging information notification time to the present and missing traffic information on the corresponding sub session received from the RAS 200.

As such, the ACR 300 performing the process of deleting one sub-session of the multicast charging session information transmits the charging traffic information for the MSs 100 that are not requested to delete the multicast service from an external network to the RAS 200. Collecting the multicast charging session information by updating the multicast charging session information and including the updated multicast charging session information in the charging request message (McaSt_Interim) to the AAA server 400 (S206). The response message corresponding thereto is provided from the AAA server 400 (S207).

On the other hand, when the ACR 300 repeats the above process and maintains only one charging session for the initially set multicast charging session, when the multicast service stop request is received from the MS 100 according to the charging session. In operation S211, a process of deleting the multicast charging session is performed.

That is, if a missing packet is generated from the RAS 200 according to the stop of the multicast service requested from the MS 100, and the missing traffic information is provided from the RAS 200 to the ACR 300 (S212), the corresponding multi The stop request message (McaSt_Stop) for the cast charging session information is transmitted to the AAA server 400 (S213).

The ACR 300 receives the response message corresponding thereto from the AAA server 400 (S214) and deletes the corresponding multicast charging session (S215).

5 is a signal flow diagram illustrating a method for changing a QoS group of a multicast charging session in a portable Internet system according to an embodiment of the present invention.

The portable Internet system does not separate QoS groups in one multicast charging session when the QoS resources between the RAS 200 and the ACR 300 are the same for one multicast service.

However, when the air resources for the same multicast service are different due to multicast service requests from a plurality of subscribers, the portable Internet system may perform charging by reflecting this.

Accordingly, the ACR 300 divides groups according to subscriber resource information in one multicast session and manages subscribers using resources in the same class as one group. In this case, each group may have different charges for the same traffic according to resource status.

As described above, in the portable Internet system for classifying groups according to resource information, when a change of allocation resource information is requested from an arbitrary MS 100 (S301), the ACR 300 performs a corresponding subsession. The group of is moved to the group of the requested resource information and the corresponding multicast charging session is updated to include the movement information (S302).

On the other hand, if there is no desired group in the multicast charging session, the ACR 300 may create a new group and move the subsession. In this case, the ACR 300 sends a request message (McaSt_Change) related to the creation of the new group and the movement of the subsession. By transmitting to the AAA server 400 (S303), a response message corresponding thereto is provided from the AAA server 400 (S304) to move the group of the sub-session. Here, the ACR 300 includes the information of the sub session to be moved in the request message (McaSt_Change) transmitted to the AAA server 400, the corresponding sub-session information is composed of traffic information collected from the previous billing cycle to the present do.

Then, the ACR 300 moving the group of the sub-session collects the billing traffic information coming into the ACR 300 from the external network, updates the multicast billing session information, and updates the multicast according to a predetermined billing cycle. The charging session information is included in the charging request message (McaSt_Interim) and transmitted to the AAA server 400 (S305), and a response message corresponding thereto is provided from the AAA server 400 (S306).

6 illustrates a data structure for multicast charging session processing according to an embodiment of the present invention.

Referring to FIG. 6, in the portable Internet system, when the AAA server 400 receives a request for an initial multicast charging session, the AAA server 400 generates session information and connects subscriber information of the corresponding terminal.

In addition, when the AAA server 400 receives the sub session addition request for the corresponding multicast session, the AAA server 400 connects the subscriber information requested to the sub session addition to the session information. At this time, the AAA server 400 receives the traffic information collected from the previous charging cycle to the present from the ACR 300, and sets unused traffic information for the corresponding subsession using the traffic information.

When the AAA server 400 is notified of the charging information collected from the ACR 300 according to a preset charging cycle, the AAA server 400 updates the charging information of all subscribers included in the multicast charging session. Here, when unused traffic is set in the sub session, the traffic used during the billing week of the subscriber subtracts the unused traffic set in the sub session from the amount of traffic collected during the billing period.

On the other hand, when the MS 100 stops the multicast service, the AAA server 400 receives a stop request for the charging subsession from the ACR 300. This message contains the traffic information collected from the previous charging information notification to the present. Accordingly, the AAA server 400 updates the billing information of the subscriber and deletes the corresponding subsession.

The AAA server 400 deletes the multicast charging session when the sub session that has received the service stop request is the last sub session of the corresponding multicast. If the QoS change is made for one sub session, the AAA server 400 updates the billing DB of the corresponding subscriber by using the traffic information collected so far from the information received by the ACR 300. The traffic information is set as an unused traffic value of the corresponding subsession. At the next billing cycle, the sub session is charged according to the changed QoS.

From this, in the portable Internet system, all the subscriber traffic usage when the subscriber billing information for each charging cycle is updated may be calculated as in Equation 1 below.

[Equation 1]

Traffic usage for all subscribers = Traffic usage collected per billing cycle-Unused traffic usage (subscribers using multicast requests within billing cycle)

In addition, the specific subscriber traffic usage when charging information is updated when the multicast service is stopped may be calculated as in Equation 2 below.

[Equation 2]

Specific subscriber traffic usage = Traffic usage collected from the previous billing cycle to the present-Unused traffic usage (if the subscriber's multicast service request occurred within the billing cycle)

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

In the multicast service charging method and apparatus of the portable Internet system according to the present invention as described above, as the portable Internet system manages a plurality of subscribers requesting the same multicast service among the multicast services as one charging session, The memory space and signaling for the multicast charging process can be reduced.

Claims (24)

In the multicast service billing method of a portable Internet system including a plurality of Radio AcceSS Station (RAS), AccesSS Control Router (ACR) and AAA server, Generating, by the ACR, a multicast charging session according to a multicast service request of a first subscriber; Processing, by the ACR, multicast service charging information collected from the first RAS to which the first subscriber belongs according to a predetermined period; Adding a sub-session for the created multicast charging session when the ACR is requested a multicast service from a second subscriber; Processing, by the ACR, multicast service charging information collected from a second RAS to which the second subscriber belongs to a predetermined period; Deleting the subsession from the multicast charging session when the ACR is requested to stop service from the second one of the subscribers; And Deleting, by the ACR, the multicast charging session; Deleting the sub session, Generating a multicast service stop request from the second subscriber; Receiving missing traffic information from the second RAS; Deleting sub session information of the second subscriber who has requested to stop the multicast service among the multicast charging session information; And And transmitting a multicast service deletion request message (McaSt_Delete) including the deleted subsession information among the multicast charging session information to the AAA server, and receiving a corresponding response message from the AAA server. How to charge multicast service for internet system. The method of claim 1, wherein the ACR processes the charging information of the first subscriber, Generating the multicast accounting session, transmitting a charge request message (McaSt_Start) for a multicast service to the AAA server, and receiving a corresponding response message from the AAA server; Notifying the first RAS of a charging period for the multicast service and traffic information to be collected; Collecting multicast service usage traffic information of the first subscriber from the first RAS according to a predetermined charging period; Generating and updating charging session information for the first subscriber from the collected traffic information; And And transmitting a charging session information according to the update to an AAA server and receiving a response message corresponding thereto. The method of claim 2, wherein the charging session information, And at least one of a packet number, an octet number, and a set time of a multicast charging session provided to the portable internet system. The method of claim 1, wherein the ACR processes the charging information collected from the second RAS, Transmitting a sub-session addition request message (McaSt_Add) for the existing multicast charging session information to the AAA server, and receiving a corresponding response message from the AAA server; Notifying a charging period and traffic information to be collected to the second RAS to which the second subscriber belongs; Collecting multicast service usage traffic information of the second subscriber from the second RAS according to a predetermined charging period; Generating and updating charging session information for the second subscriber from the collected traffic information; And And transmitting a charging session information according to the update to an AAA server and receiving a response message corresponding thereto. The method of claim 4, wherein the sub-session add request message is A billing method for a multicast service of a portable internet system, comprising traffic information collected from a previous billing information notification time to the present. The method according to any one of claims 1 to 5, The traffic usage of all the subscribers during the multicast service is a usage amount obtained by subtracting the unused traffic usage from the traffic usage collected for each predetermined charging cycle. delete The method of claim 1, wherein the multicast service deletion request message, A method for charging a multicast service of a portable internet system, comprising traffic information collected from a previous charging information notification point to the present and missing traffic information for a corresponding subsession received from the RAS. The method of claim 1, wherein the ACR deletes the multicast charging session. Receiving a request for stopping a multicast service from the first subscriber; Receiving missing traffic information from the first RAS; Transmitting a stop request message (McaSt_Stop) for the multicast charging session information to the AAA server, and receiving a corresponding response message from the AAA server; And And deleting the multicast accounting session. The method according to any one of claims 1 to 5, wherein the traffic usage of a particular subscriber when the multicast service is suspended, A billing method for a multicast service of a portable Internet system, characterized in that it is a usage amount obtained by subtracting the unused traffic usage from the traffic usage collected from the previous charging cycle to the present. The method of claim 1, When the QoS resources between the RAS and the ACR are the same for one multicast service, creating one QoS group in the one multicast charging session; Dividing the multicast billing group according to the changed resource information when QoS resource information for the one multicast service is changed by a multicast service request from a plurality of subscribers; And And charging the same traffic for each of the groups differently for the multicast service of the portable internet system. The method of claim 11, Receiving, by the ACR, a change request for allocation resource information from any subscriber in an environment in which the charging group is divided according to the resource information of the subscriber; Wow The ACR further comprises the step of moving the group of sub-session to the group of the requested resource information. The method of claim 12, If the desired group does not exist in the multicast charging session, the ACR sends a request message (McaSt_Change) related to creation of a new group and movement of a subsession to the AAA server; Wow And receiving, by the ACR, a response message corresponding to the request message, and moving the group of the sub-sessions. The method of claim 13, wherein the request message (McaSt_Change) transmitted from the ACR to the AAA server, And information about the sub-session to be moved, which is composed of traffic information collected from a previous charging cycle to the present. In the portable Internet system for a multicast service, A base station in a portable Internet system, which collects traffic information transmitted from a plurality of mobile stations (MSs) located in a portable Internet support cell, and includes RAS (Radio) including information related to multicast service QoS. AcceSS Station); Sub session of the multicast service billing session for the MS requesting the same service as the multicast service which is already being performed by managing the charging session and the billing information for the multicast service requested by the MS by accommodating the plurality of RASs ACR (AcceSS Control Router) managed by; And Including an AAA server for maintaining the MS-specific billing information from the multicast billing information provided from the ACR, The ACR, When the multicast service stop request is received from one of a plurality of MSs managed by the same multicast service charging session, the subcast of the multicast charging session is deleted, and the multicast service is received from all MSs except one. And when the suspension is requested, deleting the multicast charging session. The method of claim 15, wherein the ACR, Generate a multicast charging session according to the multicast service request of the first MS, process the multicast service charging information of the first MS collected from the first RAS to which the first MS belongs, according to a preset period, When receiving the same service as the multicast service from the second subscriber, adding a sub-session for the generated multicast charging session, so that the second subscriber collected from the second RAS to which the second subscriber belongs A portable Internet system for a multicast service, characterized by processing the cast service billing information according to a predetermined period. The method of claim 16, wherein the ACR, When the multicast charging session of the first subscriber is created, a charging request message (McaSt_Start) for the multicast service is transmitted to the AAA server, and a response message corresponding thereto is provided from the AAA server. A portable Internet system for a multicast service, characterized by processing multicast service charging information of the MS. The method of claim 16, wherein the ACR, When a multicast charging session for the first MS is created, the first RAS is informed of the charging period for the multicast service and traffic information to be collected, and correspondingly, the traffic information collected from the first RAS is received. And generating and updating charging session information for the first MS and providing the update information to the AAA server. The method of claim 16, wherein the ACR, When a sub-session of the multicast charging session is generated according to the multicast service request of the second MS, a sub-session addition request message (McaSt_Add) for the existing multicast charging session information is transmitted to the AAA server, and corresponding thereto. And after receiving the response message from the AAA server, process the multicast service charging information of the second MS. The method of claim 16, wherein the ACR, When a multicast subsession for the second MS is generated, the second RAS is informed of the charging period for the multicast service and traffic information to be collected, and correspondingly, the traffic information collected from the second RAS is received. And generating and updating charging session information for the second MS and providing the update information to the AAA server. delete The method of claim 15, wherein the ACR, If the QoS resources between the RASs are the same for one multicast service, a single QoS group is created in the multicast charging session, and the multicast service requests are sent to the multicast service by multicast service requests from multiple MSs. And when the QoS resource information is changed, the multicast charging group is divided according to the changed resource information, so that charging for the same traffic is different for each group. The method of claim 22, wherein the ACR, In the environment where the billing group is divided according to the resource information of the subscriber, if a change of allocation resource information is requested from any subscriber, the group of subsessions is moved to the group of the requested resource information. Portable Internet System for Service. The method of claim 22, wherein the ACR, If the desired group does not exist in the multicast charging session, the AAA server requests the AAA server to create a new group and move a subsession, and correspondingly, moves the group of the subsession. Internet system for business.

Images