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Charging in IMS networks for sessions that are transferred between access networks

A technology for accessing networks and networks, which is applied in the field of communication networks and can solve problems such as overpayment and inability to connect CDRs to each other

Active Publication Date: 2010-12-15
WSOU INVESTMENTS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the CGF cannot correlate the CDRs of the session
As a result, the end user may underpay or overpay for the session

Method used

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  • Charging in IMS networks for sessions that are transferred between access networks
  • Charging in IMS networks for sessions that are transferred between access networks
  • Charging in IMS networks for sessions that are transferred between access networks

Examples

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[0055] Figure 5-8 An embodiment of charging for a session that seamlessly switches from one access network to another is described. Figure 5 The communication network 500 in the exemplary embodiment of the present invention is explained. The communication network 500 includes a GSM network 502, a WiFi network 503, and an IMS network 110. Figure 5 The IMS network 110 in further includes a media gateway control function (MGCF) 512 and a P-CSCF514. Figure 5-8 The embodiment in illustrates the seamless switching from the GSM network 502 to the WiFi network 503 when the dual-mode device 106 is invited to the session by the endpoint 140.

[0056] Figure 6-8 To illustrate a message diagram of messages used in a conversation in an exemplary embodiment of the present invention. Although other protocols may be used in other embodiments, the message diagram illustrates SIP and Diameter messages used within the communication network 500. Assuming IMS endpoint 140 (see Figure 5 ) It is ...

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Abstract

IMS networks and methods are disclosed for charging for a session of a dual mode device that is transferred (seamless handover) from a first access network to a second access network. When a session is transferred between access networks, multiple charging identifiers (e.g., ICID) are assigned to the session. One or more network elements in the IMS network identify both an original ICID and a handover ICID for the session, and insert the original and handover ICID in a charging message that is transmitted to a charging system. The charging system then inserts the original ICID and the handover ICID in a CDR for the session. When the session ends, the charging system may use the original ICID and the handover ICID to correlate multiple CDRs for the session. Thus, even if CDRs for the same session have different ICIDs, the charging system is able to correlate the CDRs.

Description

Technical field [0001] The present invention relates to the field of communication networks, and, in particular, to providing offline sessions for dual-mode devices that transfer between access networks (for example, sessions are transferred from a GSM network (switched seamlessly) to a WiFi network) in an IMS network Billing. Background technique [0002] An increasingly popular communication network is the IP Multimedia Subsystem (IMS) network. In the so-called 3rd Generation Partnership Project (3GPP), IMS provides a common core network with a network structure that allows different types of access networks. The access network between the communication device and the IMS network may be a cellular network (for example, CDMA or GSM), WLAN (for example, WiFi or WiMAX), Ethernet, or another wireless or wired access network. The IMS structure was originally defined by 3GPP. The IMS structure is used to provide multimedia services for communication devices on an Internet Protocol ...

Claims

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Application Information

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IPC IPC(8): H04L12/14H04L29/06H04W4/24H04W4/26
CPCH04L29/06217H04L12/1403H04M2215/7442H04L12/14H04M15/57H04L29/06353H04M2215/7833H04L65/1083H04M15/00H04L65/1016H04M15/8228H04M2215/2026H04M2215/74H04M2215/204H04M2215/208H04M15/80G06Q30/04H04W36/14H04W4/24H04M15/8038H04L65/1095H04W36/1446
Inventor 蔡亦钢李玉栋裴珂徐春光
Owner WSOU INVESTMENTS LLC
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