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Loss of signaling loading transmission

A signaling and bearer layer technology, used in transmission systems, digital transmission systems, data exchange networks, etc.

Active Publication Date: 2009-06-24
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, before being able to register to the IMS, the user must obtain IP connectivity to the IP-CAN

Method used

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  • Loss of signaling loading transmission
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  • Loss of signaling loading transmission

Examples

Experimental program
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Embodiment Construction

[0039] Certain preferred embodiments are described below for the adaptation of the PCC model for requesting and obtaining notification about signaling bearer transmissions. Even though the PCC model refers to AF, RCRF and PCEF, the latter two being entities primarily used for policing and charging decisions and enforcement point usage, the present invention does not necessarily require such functionality.

[0040] In this respect, corrections to be made on the AF 1 according to the PCC model, as proposed by an aspect of the invention, can be made directly at the P-CSCF 10 without substantially departing from the general inventive concept underlying the invention. Furthermore, the corrections made on the RCRF 2-bis according to the PCC model, as proposed by another aspect of the invention, can be made in the rule-control function device 2 (hereinafter referred to as RCFD), which also does not necessarily use for policy and billing.

[0041] Therefore, according to the present ...

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Abstract

Being aware of a loss of signalling bearer transport through an IP Connectivity Access Network is an important issue. Therefore, the present invention relies on amending the Policing and Charging Control model with means to provide the IMS infrastructure with subscriptions to and notifications about signalling session events detected on the signalling IP flow transported through the bearer layer.To this end, a P- CSCF, or AF included therein, is amended to allow the establishment of a signalling session for subscription to notification of bearer level events for a signalling IP flow. Apart from that, new processing rules are required at the AF and PCRF for handling the signalling session, the notification of events and the termination of the signalling session.

Description

technical field [0001] The present invention generally relates to the possible loss of signaling bearer transmissions via the bearer network without the signaling network entities being aware of such events. In particular, the invention relates to procedures for requesting and obtaining notification of lossy signaling bearer transmissions. Background technique [0002] The IP Multimedia Subsystem (IP Multimedia Subsystem, hereinafter referred to as IMS) enables operators of the Public Land Mobile Network (hereinafter referred to as PLMN) to provide their subscribers with Internet-based applications, services and protocols multimedia services. On top of IMS can provide rd Generation Partnership Project (hereinafter referred to as 3GPP) defines different services and applications, such as the multimedia telephony service described in 3GPP TS 22.173. [0003] IMS applications, and also the services provided by IMS, include the exchange of media, eg voice or video, and the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L29/06217H04L65/1016H04L29/06272H04L65/1043H04L65/1045H04L12/1407
Inventor D·卡斯特拉诺斯-扎莫拉S·弗南德滋-阿洛索J·J·帕斯托巴巴斯S·特里尔
Owner TELEFON AB LM ERICSSON (PUBL)
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