Method for charging session contents

Abstract

The invention relates to a method for charging IMS (Internet protocol multimedia subsystem) peer-to-peer session contents. The method comprises the following steps of expanding an AVP (accounting value pair) structure for expressing IMS peer-to-peer session service charging information in a Diameter protocol charging message structure, wherein the AVP structure comprises a signaling type identification field, a virtual signaling packet identification filed, a charging stage identification field and a media traffic table identification field; in a session process, recording the charging information of a user through the AVP structure and transmitting the charging information of the user to a charging function entity network element by using a charging information acquisition network element; performing charging data recording, association and sorting according to the AVP structure by using the charging function entity network element, thereby realizing charging. According to the method, not only is the problem of incapability of distinguishing signaling types and virtual logic network elements during the session charging of an IMS peer-to-peer session service solved, but also the problem of incapability of charging session media traffic and media quality in case of media type transcoding and media switching services in the session process is solved.

Description

technical field [0001] The invention relates to an IP Multimedia Subsystem (IMS, IP Multimedia subsystem) service charging method in the communication field, in particular to a method for realizing charging for IMS multimedia point-to-point session content. Background technique [0002] Currently, the existing IMS service charging method can perform offline or online charging for the IMS multimedia point-to-point session based on the Rf interface or the Ro interface. 3rd Generation Partnership Project (3GPP, Third Generation Partnership Projects) protocol standard For charging bill (CDR, Charging Data Record) and Diameter protocol offline charging ACR (Accounting Request) message, online charging CCR (Credit Control Request) The message also specifies some fields that meet the billing requirements, such as session identifier Session-ID, calling party address Calling-Party-Address, service request time Service-Request-Time-Stamp, service response time Service-Delivery-Start- ...

AI Technical Summary

Problems solved by technology

[0003] 1) In an IMS multimedia point-to-point session, there may be a scenario where the calling side and the called side of a network element use different signaling plane protocol types, but the current protocol standards cannot be based on the different signaling plane protocol types, or according to Identify and sort billing bills based on the difference in the direction of the call initially requested by the session

[0004] 2) In the IMS network, there may be a scenario where one physical network element entity is virtualized into multiple logical network element entities, and these multiple logical network element entities share one Rf charging interface. Different network element entities, identify and sort billing bills

[0005] 3) An IMS multimedia point-to-point session may have the scenario of media type conversion (trandcoding) between the calling side and the called side. The operator needs to provide the calling side and the called side of the media plane of the IMS multimedia point-to-point session in the billing bill. media traffic and media quality measurement data on the side, so that it can formulate a more flexible billing strategy, but the current protocol standard is still unable to distinguish the media of the IMS multimedia point-to-point session provided by the calling side and the called side in the billing bill. Traffic, media quality measurement data

[0006] 4) After an IMS multimedia point-to-point session enters the call phase, there may be a media switching scenario, but the current protocol standard is still unable to provide the media flow and media quality measurement data of the media plane before and after the media switching in the billing bill, resulting in This prevents operators from being able to formulate more flexible billing strategies based on different media traffic and media quality before and after media switching

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