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Method and equipment for reducing interruption time for switching voice over internet phone (VoIP) calling

A technology in the time and circuit switching domains, applied in electrical components, wireless communication, connection management, etc., can solve problems such as service quality discounts, uncertain flow interruption time, and uncertain interruption time of voice calls, so as to improve service quality and high The effect of compatibility

Inactive Publication Date: 2010-10-06
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Description
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Problems solved by technology

[0027] It can be seen from the above that this provision in 3GPP TS 23.216 is not perfect, because it not only stipulates a complicated signaling process, but also makes voice calls have uncertain interruption time in the implementation
[0028] It can be seen that, in the prior art solution to SRVCC in the VoIP call transfer process, the flow interruption time is uncertain, which greatly reduces the quality of service

Method used

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  • Method and equipment for reducing interruption time for switching voice over internet phone (VoIP) calling
  • Method and equipment for reducing interruption time for switching voice over internet phone (VoIP) calling
  • Method and equipment for reducing interruption time for switching voice over internet phone (VoIP) calling

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Embodiment Construction

[0069] As mentioned above, when switching a VoIP voice call from the PS domain to the CS domain, it includes the session transfer process at the IMS layer, the CS handover process to the target cell at layer 2 (executed between the local UE and the access network) switching) two parts, so that the solution to SRVCC in the prior art cannot actually guarantee the continuity of the voice call, but there is an uncertain interruption time. Among them, the flow interruption time introduced by the latter (that is, the CS switching process) is inevitable and usually relatively deterministic.

[0070] Therefore, the basic idea of ​​the present invention is to reduce the total interruption time in the above handover process of VoIP by eliminating, or at least reducing, the interruption time introduced by the session transfer process at the IMS layer.

[0071] Figure 4 An exemplary structure of an optimized SRVCC according to an embodiment of the present invention is shown. Among them...

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Abstract

The invention relates to a method and equipment for reducing interruption time for switching voice over internet phone (VoIP) calling. The method comprises the following steps of: when a VoIP calling anchoring unit in a network supporting a VoIP service receives the notification of a control unit from a packet switching domain, and determining whether to indicate to switch the VoIP calling from the packet-switching domain to a circuit switching domain; and if so, distributing the corresponding conference resources and adding a terminal of the VoIP calling and the corresponding control unit in the circuit switching domain into the conference.

Description

technical field [0001] The present invention relates to wireless network communications, and more particularly, the present invention relates to a method and apparatus for reducing interruption time during handover of a VoIP call from a packet-switched domain to a circuit-switched domain. Background technique [0002] With the rapid development of network communication technology, in practical applications, there are often overlaps of different types of networks. This provides a better guarantee for the quality of service for network users. For example, when a user terminal that is conducting a VoIP call through the packet-switched domain finds that its signal quality is degraded (for example, due to its movement to an area with weak or even no signal, that is, moving to the edge or outside of the network coverage that currently provides the packet-switched domain; Or the VoIP service in the current network becomes unavailable due to congestion, etc.), and it is within the ...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W36/18H04W76/02H04W76/06H04W80/00
Inventor 雷正雄严学强
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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