WO2009056041A1

WO2009056041A1 - Method, system and device for transmitting the charge attribute information

Info

Publication number: WO2009056041A1
Application number: PCT/CN2008/072782
Authority: WO
Inventors: Zhaojun Wu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-10-23
Filing date: 2008-10-22
Publication date: 2009-05-07
Also published as: CN101420676A

Abstract

A method, a system and a device for transmitting the charge attribute information are provided. The method comprises: receiving a message which contains the charge indicator from a side supporting charge information transmission; choosing the SIP message type and the charge attribute bearing manner according to the charge indicator and sending the SIP message. The transmission and expression of the charge attribute information are supported when SIP-I or ISUP can't be used in the whole signaling flow and the additional operator cost of the telecom operator isn't produced by adding the charge attribute information mapping function of the interflow nodes in the method.

Description

Method, system and device for transmitting billing attribute information The present application claims to be submitted to the Chinese Patent Office on October 23, 2007, the application number is 200710181561.6, and the invention name is "a method, system and device for transmitting billing attribute information" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, system, and device for charging attribute information. Background technique

The 3GPP (3rd Generation Partnership Project) R4 network-related definition introduces the concept of separation of bearer and control, making IP bearer technology gradually applied in the core network of circuit switching. At the same time, SIP (Session Initiation Protocol), as an application layer control protocol for establishing, changing and terminating multimedia sessions or calls, is gradually applied to 3GPP R4 networks.

Currently, in the traditional mobile circuit domain network, Signaling No. 7 can transmit charging information well. For example, the charging indicator may be carried in the backward call indication of the ACM (Address Complete Message) to indicate the charging attribute of the called party, that is, the called party does not charge or charge information. In the 3GPP R4 network, SIP-I (SIP with encapsulated ISUP) or ISUP (Integrated Service Digital Network User Part) can be used to solve the correct delivery of billing attribute information. The expression, for example, may encapsulate the ACM message carrying the called party charging attribute information. However, in the scenario where SIP-I or ISUP cannot be used in the signaling interaction, there is a case where the required charging attribute information is lost. For example, the charging attribute information is lost during the message format conversion process.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: In a business process that needs to explicitly inform the calling party or the called party of the charging attribute information, Currently, the related SIP protocol does not explicitly describe how to standardize the behavior of the MSC (Mobile Switch Central) server to implement the delivery and expression of such charging attribute information. Summary of the invention

The embodiment of the present invention provides a method, a system, and a device for transmitting charging attribute information. In the scenario that the full signaling process cannot use SIP-I or ISUP in the network interworking process, the interworking node can correctly transmit and express the charging. Attribute information.

The embodiment of the invention provides a method for transmitting charging attribute information, which includes the following steps:

Receiving a message sent from a side that supports charging information transmission, where the message carries a charging indication;

And selecting, according to the charging indication, a type of a session initial protocol SIP message and a manner of carrying a charging attribute, and sending the SIP message.

The embodiment of the present invention further provides a system for transmitting charging attribute information, including: a first network access point, configured to receive a message from a first network entity, where the message carries a charging indication; The charging indication selects the type of the SIP message and the mode of carrying the charging attribute;

The first network entity is configured to determine a charging indication, and send the charging indication to the first network access point.

The embodiment of the invention further provides a network access point, including:

And an indication receiving unit, configured to receive a message from the first network entity, where the message carries a charging indication;

And a backward message sending unit, configured to select a type of the SIP message and a mode of carrying the charging attribute according to the charging indication, and send the SIP message to the peer user.

Compared with the prior art, in the embodiment of the present invention, by adding the charging attribute information mapping function of the interworking node, the charging attribute in the scenario where the SIP-I or ISUP cannot be used in the full signaling process is well supported. Transmission and expression of information, and will not give telecom operations Business creates additional operating costs. DRAWINGS

1 is a flow chart of charging attribute transfer in the first embodiment of the present invention;

2 is a flow chart of charging attribute transfer in the second embodiment of the present invention;

3 is a flow chart of charging attribute transfer in the third embodiment of the present invention;

4 is a system structural diagram of a charging attribute information transmission in an embodiment of the present invention.

detailed description

In the first embodiment of the present invention, the 3GPP network is connected to the NGN (Next Generation Networking) network or the IMS (IP Multimedia Subsystem, IP Multimedia System) network using the SIP protocol, and the 3GPP R4 network internally uses the No. 7 signaling. The network scenario of the protocol is an example. The flow of implementing billing attribute delivery and expression in the network scenario is as shown in Figure 1, and includes the following steps:

Step si 01: The IMS network or the NGN network initiates a call to the 3GPP R4 network access point using the INVITE message.

Step sl02, the 3GPP R4 network access point converts the INVITE message into an IAM (Initial Address Message) and forwards it to the backward MSC server. The ΙΑΜ message is a call initiation message, and the message includes information such as the calling and called number, the transmission capability, and the circuit identification.

Step sl03, the 3GPP R4 network access point receives the ACM sent from the backward MSC server. Among them, the ACM message indicates that all necessary address information (such as the calling and called number, etc.) has been received, and the called party has been ringing, and the ringing tone is sent back to the calling party.

Step sl04, the 3GPP R4 network access point converts the ACM message into a 180 message and forwards it to the forward IMS network or the NGN network.

Step s105, the IMS network or the NGN network sends a PRACK message to the 3GPP R4 network access point. The PRACK message is a mechanism for guaranteeing reliable transmission of temporary messages in SIP messages. Step s106, the 3GPP R4 network access point returns a 200 message to the IMS network or the NGN network, and completes the corresponding verification.

Step s107, the 3GPP R4 network access point receives the ANM (Answer Message) from the MSC server, parses the backward call representation, and checks and finds that there is a signaling parameter "charge indication", indicating that it is needed The called party bills. In order to realize that the charging attribute information in the 3GPP R4 circuit domain can be correctly transmitted in the IMS network or the NGN network, a charging attribute information mapping function module is added to the MSC server as the interworking node, and the charging attribute information is completed in different networks. Pass and expression. In order to adapt to the differences in the expression patterns of different network charging attributes, this function module is responsible for controlling which SIP messages are used to convey the charging attribute information in Signaling No. 7. At the same time, this function module can also control whether to use SIP message body or SIP header field to carry and express such charging attribute information. In the description of this embodiment, the charging attribute information mapping function module in the interworking node MSC server decides to carry the charging attribute information in the Chargelndicator header field of the 200 response message according to the actual requirements of the interworking network. The syntax of this header field is shown in Table 1 below:

In this embodiment and the following embodiments, the Chargelndicator header field is only described as an example. Details of how the charging attribute information is presented in the SIP message are not described in detail in this solution. In step s108, the 3GPP R4 network access point sends a 200 message to the IMS network or the NGN network. The message carries the header field Chargelndicator: Charge Type=Callee-Charge, indicating that the called party needs to be charged.

Step sl09, the 3GPP R4 network access point receives the confirmation message ACK of the peer network. In the second embodiment of the present invention, the 3GPP network is connected to the NGN network or the IMS network by using the SIP protocol, and the network scenario using the SIP-I protocol in the 3GPP R4 network is taken as an example. An example process for implementing charging attribute information delivery and expression in the network scenario is shown in FIG. 2, and includes the following steps:

Step s201: The IMS network or the NGN network initiates a call to the 3GPP R4 network access point by using an INVITE message.

Step s202: The 3GPP R4 network access point encapsulates the INVITE message into an IAM message and forwards the message to the backward MSC server.

Step s203: The 3GPP R4 network access point receives the 180 message from the MSC server to encapsulate the ACM.

Step s204: The 3GPP R4 network access point converts the 180 message into a forward IMS network or an NGN network by transmitting a 180 message that does not carry the ACM.

Step s205: The IMS network or the NGN network sends a PRACK message to the 3GPP R4 network access point. Step s206, the 3GPP R4 network access point returns a 200 message to the IMS network or the NGN network, and completes the corresponding verification, that is, the reliable transmission of the 180 temporary response is completed.

Step s207, the 3GPP R4 network access point sends a PRACK message to the MSC server.

Step s208, the MSC server returns a 200 message to the 3GPP R4 network access point, and completes the corresponding verification, that is, the reliable transmission of the 180 temporary response is completed.

Step s209, the 3GPP R4 network access point receives the 200 message from the MSC server to encapsulate the ANM. Among them, the 200 message body can carry an indication indicating that the called party needs to be charged. E.g:

Content- Type: application/sdp V=0

o=SoftSwitch 1073741824 1073741824 IN IP4 172.40.200.40 s=Sip Call: Callee-Charge

c=IN IP4 18.10.1.2

t=0 0

m=audio 264 RTP/AVP 8 96

a=rtpmap:8 PCMA/8000

a=rtpmap:96 AMR/8000

Among them, the Callee-Charge in the message body indicates the called party billing.

Steps s205 to s206 belong to a single process, and steps s207 to s208 belong to a single process, and there is no strict execution order between the two separate processes.

Step s210: Analyze the ANM message to obtain a backward call representation, and check that a signaling parameter "accounting indication" exists therein, indicating that the called party needs to be charged. In order to transmit the called party charging attribute information, the charging attribute information mapping function module analyzes and processes, and decides to carry the corresponding information in the 200 response message to express the charging attribute of the called party.

In step s211 and step s212, the 3GPP R4 network access point receives the acknowledgement message ACK of the peer network and forwards the message to the MSC server. In the third embodiment of the present invention, the 3GPP network is connected to the NGN network or the IMS network by using the SIP protocol, and the network scenario using the No. 7 signaling protocol in the 3GPP R4 network is taken as an example. An example process for implementing charging attribute information delivery and expression in the network scenario is shown in FIG. 3, and includes the following steps:

Step s301, the 3GPP R4 network initiates a call to the 3GPP R4 network access point by using an IAM message.

Step s302: The 3GPP R4 network access point parses the IAM message, and finds that there is indication information indicating that the called party needs to be charged in the optional forward call indicator cell, that is, the called paying Collect Call service. In order to realize that the charging attribute information in the 3GPP R4 circuit domain can be correctly transmitted in the IMS network or the NGN network, the charging attribute information mapping function module analyzes and processes, and determines to add corresponding charging attribute information to the INVITE message to express the same. A service indication requirement that requires called billing.

Step s302 to step s308, after the 3GPP R4 network access point sends the INVITE message carrying the charging attribute information, the call continues to be connected, and the called party accepts the charging request requested by the calling party.

The embodiment of the present invention further provides a system for transmitting charging attribute information, as shown in FIG. 4, including: a first network access point 100, configured to receive a message from a first network entity, where the message carries And indicating the type of the SIP message and the method of carrying the charging attribute according to the charging indication; the first network entity 200 is configured to determine the charging indication, and send the charging indication to the first network access point. 100.

The first network access point 100 specifically includes: an indication receiving unit 110, configured to receive a message from the first network entity 200, where the message carries a charging indication, and a backward message sending unit 120, configured to The charging indication selects a type of the SIP message and a mode of carrying the charging attribute, and sends the SIP message to the peer user. The indication receiving unit 110 specifically includes: a calling indication receiving subunit 111, configured to receive an IAM message sent by the calling party when the first network entity is a calling party, and the called indication receiving subunit 112 And, when the first network entity is the called party, receiving an ANM response message sent by the called party. In addition to the above IAM messages and ANM response messages, the interaction of messages can also be implemented by other types of service request messages and service response messages.

The first network entity 200 specifically includes: a charging indication determining unit 210, configured to determine a type of a SIP message and a mode of carrying a charging attribute; and an indication sending unit 220, configured to: use the type of the SIP message and carry a charging attribute The method notifies the first network access point.

In the embodiment of the present invention, by adding the charging attribute information mapping function of the interworking node MSC server, the transmission and expression of the charging attribute information in the scenario that the SIP-I or ISUP cannot be used in the full signaling process is well supported. At the same time, it will not cause additional operating costs for telecom operators.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or can be added with necessary general hardware by software. Based on the understanding of the above, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.). The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A method for transmitting charging attribute information, comprising: receiving a message sent from a side that supports charging information transmission, wherein the message carries a charging indication;

And selecting, according to the charging indication, a type of a session initiation protocol SIP message and a manner of carrying a charging attribute, and sending the SIP message.

The method for transmitting the charging attribute information according to claim 1, wherein the method for carrying the charging attribute comprises: carrying by the SIP message body or by using the SIP message header field.

The method for transmitting the charging attribute information according to claim 2, wherein the carrying by the SIP message header field comprises:

The charging indicator is defined in the SIP message. The Chargelndicator header field, through the Charging Type of the Chargelndicator header field, the value of the Charge Type, which indicates which party of the call is charged.

The method for transmitting the charging attribute information according to claim 2, wherein the carrying by the SIP message body comprises:

The SIP message body carries an indication of the charging type, and the charging type indication indicates which party of the call is to perform charging.

The method for transmitting the charging attribute information according to claim 1 or 2, wherein the type of the sending message on the side of the supporting charging information comprises: an ISUP message or a SIP-I message.

A system for transmitting charging attribute information, comprising: a first network access point, configured to receive a message from a first network entity, where the message carries a charging indication; The fee indication selects the type of SIP message and the mode of carrying the charging attribute;

7. The system for charging attribute information transmission according to claim 6, wherein: The first network access point specifically includes:

The system for transmitting the charging attribute information according to claim 6, wherein the first network entity specifically includes:

a charging indication determining unit, configured to determine a type of the SIP message and a charging charging attribute manner;

And an indication sending unit, configured to notify the first network access point of a type of the SIP message and a manner of carrying a charging attribute.

9. A network access point, comprising:

The network access point according to claim 9, wherein the indication receiving unit specifically includes:

a calling indication receiving subunit, configured to receive a message sent by the calling party when the first network entity is a calling party; or

The called indication receiving subunit is configured to receive the message sent by the called party when the first network entity is the called party.

A computer program product, characterized in that the computer program product comprises computer program code, and when the computer program code is executed by a computer, the computer program code can cause the computer to execute claim 1 - The steps of any of 5.

12. A computer readable storage medium, characterized in that the computer stores computer program code, and when the computer program code is executed by a computer, the computer program code can cause the computer to execute claim 1 Any of 5 Ϊ́ΐ

Z LZLO/ OOZSLJ/∑Jd OAV