KR100509942B1 - A Multiple CDR, Accounting System For Providing Flexibility of Accounting Data Of Data Network And Method of Generating Multiple CDR - Google Patents

Abstract

The present invention relates to multiple CDRs for providing flexibility of billing data of a data network, comprising a plurality of CDRs, each of which is a correlated session for a fee management system to recognize the plurality of CDRs as a group of CDRs. And a third field including a first field in which an ID is recorded, a second field in which charging related information is recorded, and a sequence ID in which order information of the plurality of CDRs is recorded.

Description

A Multiple CDR, Accounting System For Providing Flexibility of Accounting Data Of Data Network And Method of Generating Multiple CDR}

The present invention relates to a multi-CDR, a billing system and a method for generating a multi-CDR to provide the flexibility of the billing data of the data network, and more specifically, by recording a variety of differential charges divided into a plurality of CDRs by checking the same sequence ID The present invention relates to a multi-CDR, a billing system, and a method of generating a multi-CDR for providing flexibility of billing data of a data network to enable billing processing for differential rates.

At present, the use of portable terminals is increasing rapidly with the development of communication technology, and the portable terminals are widely used for transmitting and receiving data in addition to voice calls.

However, wireless data networks to date have fundamental limitations on data throughput in wireless sections compared to wired data networks. In order to overcome this limitation, various methods have been proposed. As one of them, a method of applying different types of content-based differential charges by subdividing the usage fee imposed on the network traffic occupancy has emerged. These differential plans are being accepted as an alternative for active use of wireless data networks.

In addition, as a new issue of wireless wired and wireless integration, interworking between different networks such as W-CDMA, CDMA, and wireless LAN is being discussed and will be implemented soon.

Considering the segmentation of data billing and interworking between different networks, it is essential to add billing information to the billing call detail record (CDR) for the data call. In this case, the number of billing information items may be increased or decreased depending on the degree of segmentation of billing or the number of interworking networks. That is, in order to meet various tastes of the user, the above-described billing segmentation or interworking between networks should be considered, and the format of a conventional CDR should be changed or modified.

However, because billing CDRs are the basis for billing that must be handled with great care in wireless data networks, the introduction of new CDR formats should be carefully considered as the network evolves over various paths, keeping the conventional CDR formats as much as possible. It is preferable.

1 conceptually illustrates the format of a conventional charging CDR 10. As shown in FIG. 1, the conventional charging CDR 10 is composed of a charging session 11, charging information 13, and a reserved field 15.

The charging session 11 is an area where information is recorded that allows the charging system to track from the beginning of the data call to the end of the data call.

The billing information 13 is an area in which call history is recorded in detail, such as a call history detailed record, a call number, a called number, a call start time, a call end time, a call type, a billing type, and the like.

The spare field 15 is a portion where data is not stored but is empty and is a spare data recording area.

The billing of such a conventional data call generates and records one CDR 10 for one call based on the usage from start to end of the call. However, there is a problem in that a large amount of billing information cannot be accommodated by a conventional CDR when trying to accommodate the evolutionary demands of a network such as various differential plans or interworking between different networks.

Accordingly, the demand for multiple CDRs to overcome the conventional CDR structure irrationality and provide flexibility of billing data of the data network to accommodate the evolutionary demands of the network such as various differential plans or interworking between different networks is increased. have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first object of the present invention is to provide flexibility of billing data of a data network so that new billing information can be added to a CDR while maintaining a conventional CDR structure. To provide a multi-CDR, a billing system and a multi-CDR generation method to provide.

The second object of the present invention is to introduce a sequence ID to the CDR, to preserve the reliability of the billing collection device and the charge management system, while providing the flexibility of the billing data of the data network that can facilitate the expansion of the CDR multiple CDR, billing It provides a system and a method for generating multiple CDRs.

According to a first aspect of the present invention for achieving the above object, in the multiple CDRs for providing the flexibility of the billing data of the data network, comprising a plurality of CDRs, each CDR is a plurality of charge management system A third field including a first field in which an interrelated session ID is recorded for recognizing 3 CDRs as a group of CDRs, a second field in which charging related information is recorded, and a sequence ID in which order information of the plurality of CDRs is recorded Multiple CDRs may be provided to provide flexibility of billing data of a data network comprising a.

According to a second aspect of the present invention for achieving the above object, in a method for generating multiple CDRs for providing flexibility of billing data of a data network, a plurality of charge management system in the first field of one CDR Recording interrelated session IDs for recognizing 3 CDRs as a group of CDRs, recording charging related information in a second field of the CDRs, and order information of the plurality of CDRs in a third field of the CDRs Recording the recorded sequence ID and generating additional charging information, generating a new CDR to record the correlated session ID and the sequence ID in the first and third fields, and adding the added charging information in the second field. There may be provided a method of generating multiple CDRs to provide flexibility of billing data of a data network comprising the step of recording.

According to a third aspect of the present invention for achieving the above object, in the billing system for providing the flexibility of billing data of the data network, billing for generating a CDR including billing information for a single call or multiple calls And a charge management system that receives the CDRs from the collecting device and the charging collecting device and performs charging processing, wherein each of the CDRs includes an associated session ID for causing the charge management system to recognize the plurality of CDRs as a group of CDRs. Flexibility of billing data of a data network, comprising: a first field in which is recorded; a second field in which charging related information is recorded; and a third field including a sequence ID in which order information of the plurality of CDRs is recorded. A billing system for providing can be provided.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

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

2 is a block diagram of a charging system used in the practice of the present invention.

Referring to FIG. 2, the mobile terminal 100 is connected to the IP network 130 through the base station 110 and the PDSN 120, and is connected to the Internet 170 through the gateway 160 to transmit and receive data. .

The PDSN (Packet Data Serving Node) 120 is connected to the base station 110 by LAN for high speed processing. At this time, the base station 110 is connected to the base station 110 from the mobile terminal 100 through a protocol such as UDP (User Datagram Protocol) / IP. Receive the data passed to. The PDSN 120 provides a packet data service using a PPP and TCP / IP protocol between a radio access network (RAN) including a base station 110 and a data core network (DCN).

The charging collector 140 is connected to the PDSN 120 through the IP network 130, and generally, AAA (Authentication, Authorization, Accounting) server is mainly used. The AAA server is a server that is in charge of authentication, authority, and billing, and initially confirms authentication and authority when accessing the PDSN 120, and receives charging information from the PDSN 120 when the access is terminated. The billing collection device 140 generates a CDR based on the billing information received from the PDSN 120 and transmits the CDR to the fee management system 150.

The fee management system 150 performs the billing process based on the CDR received from the billing collection device 140.

3 is a flowchart illustrating a call processing and CDR transmission process between the charge collecting device 140 and the charge management system 150 used in the practice of the present invention.

Referring to FIG. 3, the billing collection device 140 transmits a connection establishment request to the tariff management system 150 (S10), and receives a connection establishment response from the tariff management system 150 to charge the management system 150. It is connected to (S20).

After the charge collecting device 140 is connected to the charge management system 150, the charge management system 150 requests the charge data transmission (S30), and then the charge data transmission request from the charge management system 150. Receive a response (S40). That is, the charging collecting device 140 generates a CDR in which charging information is recorded and transmits a message notifying that the charging data is ready to be transmitted to the charge management system 150 when the charging data is ready to be transmitted.

When the charge collecting device 140 receives the charge data transmission request response from the charge management system 150, the charge collecting device 140 transmits the charge data, that is, the CDR to the charge management system 150 (S50).

When the billing collection device 140 completes the transmission of the billing data, the billing data transmission completion message is transmitted to the billing management system 150 (S60), and the billing data transmission completion response message is received from the billing management system 150. By doing so, the process of transferring the billing data ends (S70).

4 is a diagram conceptually illustrating a structure of multiple CDRs for billing segmentation in a data network according to the present invention.

As shown in FIG. 4, the multiple CDRs 20 according to the invention comprise a first field 21, a second field 23 and a third field 25.

The first field 21 records the correlated session ID for the charge management system 150 to recognize the plurality of CDRs 20-1, 20-2, ..., 20-N as a group of CDRs. It is an area. In this embodiment, the same data is recorded for all the correlated session IDs of the plurality of CDRs 20-1, 20-2, ..., 20-N. Therefore, when the charging collector 140 generates a plurality of CDRs 20-1, 20-2, ..., 20-N based on the additional charging information and transmits them to the charge management system 150, the charges The management system 150 reads the correlated session ID recorded in the first field 21 of the received plurality of CDRs 20-1, 20-2, ..., 20-N, and then reads the same correlation. The CDRs having the session ID are recognized as one group of CDRs to perform billing processing. However, the present invention is not limited to the case where the correlated session IDs are the same, and a plurality of CDRs 20-1, 20-2, ..., 20-N are grouped into CDRs by various other methods. You might want to create a correlated session ID to make it recognizable.

The second field 23 is an area in which charging related information is recorded. As described above, in the second field 23, call details such as call details, call number, called number, call start time, call end time, call type, and billing type are recorded in detail.

The third field 25 corresponds to the spare area 15 of FIG. 1 and, unlike the spare area 15 of FIG. 1 which is an empty data area, the plurality of CDRs 20-1, 20-2, ... 20-N) includes the sequence ID in which the order information is recorded.

5 is a diagram conceptually showing a structure of a sequence ID recorded in the third area 25 according to an embodiment of the present invention. In FIG. 5, for simplicity, a sequence ID composed of two octets will be described as an example.

As shown in Fig. 5, the sequence ID recorded in the third field 25 includes the flag field 25-1, the start / end field 25-3, the sequence number field 25-5, and a reserved field ( 25-7).

The flag field 25-1 is an area in which use of the sequence ID is recorded. In the present embodiment, the flag field 25-1 is assigned 1 bit, and when the flag field 25-1 is 0, it indicates that the sequence ID is not used, and the flag field 25-1 is 1 In this case, the sequence ID is used.

The start / end field 25-3 is an area in which order information of a plurality of CDRs is recorded. In this embodiment, the start / end field 25-3 is assigned 2 bits, and (00) indicates that it is an intermediate CDR of multiple CDRs for one call, and in case of (01), the first of multiple CDRs. The first CDR, and in the case of (10), indicates the last CDR. However, since the structure of the start / end field 25-3 is only one embodiment, the present invention is not limited thereto, and various modified structures can be easily derived based on the present embodiment.

The sequence number field 25-5 is an area in which sequence numbers for identifying a plurality of CDRs are recorded. In the present embodiment, the sequence number field 25-5 is allocated 10 bits, and the sequence number starts from 0 and increases by 1 each time a new CDR is generated. Therefore, according to this embodiment, it is possible to process 2 ¹⁰ multiple CDRs.

The spare field 25-7 is an empty spare data area, and three bits are allocated.

As described above, the present invention is not limited to the embodiment of FIG. 5, and may be configured in three or more octets according to the number of multiple CDRs, and the number of bits allocated to each field may be variously changed as necessary. Do.

6 is a flowchart illustrating a process of performing a multiple CDR generation method for providing flexibility of charging data of a data network according to the present invention.

Referring to FIG. 6, in the first field 21 of one CDR of the charging collector 140, the fee management system 150 includes a plurality of CDRs 20-1, 20-2,..., 20 -N. Record the interrelated session ID to recognize the group as a CDR (S100). As described above, the correlated session IDs recorded in each CDR are all the same.

The charging collecting device 140 records charging related information in the second field 23 of the CDR (S110). As described above, in the second field 23, information such as a detailed call history record, a calling number, a called number, a call start time, a call end time, a call type, and a billing type is recorded.

The charging collecting device 140 records the sequence ID in which the order information of the plurality of CDRs 20-1, 20-2, ..., 20-N is recorded in the third field 25 of the CDR (S120). . The charging collecting device 140 records information on whether the sequence ID is used in the flag field 25-1, and records the plurality of CDRs 20-1, 20-2,... In the start / end field 25-3. Sequence information of .., 20-N is recorded, and sequence number for identifying a plurality of CDRs 20-1, 20-2, ..., 20-N is included in sequence number field 25-5. Record it.

The charging collecting device 140 generates a new CDR when additional charging information is generated (S130).

The billing collection device 140 records information corresponding to each field of the new CDR. The billing collection device 140 records interrelated session IDs and sequence IDs in the first field 21 and the third field 25, and added to the second field 23 according to billing segmentation or interworking between different networks. Record the billing information.

Although the present embodiment is illustrated and described with reference to a mobile terminal, the present invention is not limited thereto, and the present invention can be applied to a wired terminal and various communication terminals.

In addition, in the present embodiment has been illustrated and described the expansion of the CDR due to the billing segmentation and interworking between different networks in the wireless data network, the present invention is not limited to this, the application is also applicable to the expansion of any billing CDR of the wired and wireless data network. It is possible.

According to the present invention, it is possible to provide a multi-CDR, a billing system, and a method of generating a multi-CDR to provide the flexibility of the billing data of the data network to add new billing information to the CDR while maintaining the format of the conventional CDR structure. It can be effective.

In addition, the introduction of sequence IDs in CDRs allows for multiple CDRs, billing systems, and multiple CDRs to provide the flexibility of billing data in the data network that can facilitate the expansion of CDRs while preserving the reliability of bill collectors and fee management systems. There is an effect that can provide a generation method.

That is, according to the present invention, when the same user used a variety of services in one call, for example, when a game, ringtone download, file download, etc. in one call, the billing by generating a variety of billing information in multiple CDR Segmentation can be made more efficient.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

1 conceptually illustrates the structure of a conventional charging CDR;

2 is a configuration diagram of a charging system used in the practice of the present invention;

3 is a flowchart illustrating a call processing and CDR transmission process between a billing collection device and a tariff management system;

4 conceptually illustrates a structure of multiple CDRs for providing flexibility of charging data of a data network according to the present invention;

5 conceptually illustrates a structure of a third field according to an embodiment of the present invention;

6 is a flowchart illustrating a process of performing a multiple CDR generation method for providing flexibility of charging data of a data network according to the present invention.

<Brief description of the major reference numerals>

10, 20: CDR, 21: first field,

23: second field, 25: third field,

25-1: flag field, 25-3: start / end field,

25-5: sequence number field, 25-7: spare field,

120: PDSN, 130: IP network,

140: billing collection device, 150: charge management system.

Claims (9)

When using a plurality of communication services of different billing types with one call connected, the CDR for billing, The CDR is generated whenever the communication service used by the user changes while the call is connected. A first field in which a correlation session ID for recording a plurality of CDRs generated as a group of CDRs is recorded each time the communication service used by the user is changed; A second field in which charging related information is recorded; And And a third field in which a sequence ID for recording sequence information of a plurality of CDRs generated in the one call is recorded. The method of claim 1, CDRs of which the correlated session IDs recorded in the first field of the plurality of CDRs are all the same. The method of claim 1, The third field is A flag field in which use of the sequence ID is recorded; And And a start / end field in which order information of the plurality of CDRs is recorded. The method of claim 3, wherein The third field further includes a sequence number field in which a sequence number for identifying the plurality of CDRs is recorded. The method of claim 4, wherein A sequence number recorded in the sequence number field increases by one each time a new CDR is generated. A method of generating a CDR for billing when using a plurality of communication services having different billing types while one call is connected, Generating a CDR each time a communication service used by a user is changed while a call is connected; Recording a correlated session ID for recognizing a plurality of CDRs generated as a group of CDRs whenever a communication service used by a user is changed in a first field of the CDRs; Recording charging related information in a second field of the CDR; Recording a sequence ID in which order information of the plurality of CDRs generated in one call is recorded in a third field of the CDRs; And When additional charging information is generated, generating a plurality of CDRs, recording the correlated session ID and the sequence ID in a first field and a third field, and recording the added charging information in a second field. How to create. The method of claim 6, Recording the sequence ID in the third field of the CDR Recording information on whether the sequence ID is used in a flag field; Recording order information of the plurality of CDRs in a start / end field; And And recording a sequence number for identifying the plurality of CDRs in a sequence number field. The method of claim 7, wherein The sequence number recorded in the sequence number field is increased by one each time a new CDR is generated. A billing system using a CDR generated for billing when a plurality of communication services having different billing types are used in a state in which one call is connected, A billing collection device for collecting a CDR generated whenever a communication service used by a user is changed while a call is connected; And Receiving the CDR from the billing collection device and a charge management system for performing a billing process, Each CDR is A first field in which a correlated session ID for recording a plurality of CDRs generated each time a communication service used by a user is recognized as a group of CDRs is recorded; A second field in which charging related information is recorded; And And a CDR including a third field in which a sequence ID in which sequence information of a plurality of CDRs generated in the one call is recorded is recorded.