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Blade cluster switching center server and method for signaling

A switching center and server technology, which is applied to the selection device, instrument, wireless communication and other directions of the multiplexing system, and can solve the problems that the resources cannot be connected by call and the configuration of the MSC server is complicated.

Active Publication Date: 2013-11-20
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, MSC servers are more complex to configure than systems that do not require zoning of TDM circuits
If one of the blades in the configuration shown in Figure 1 fails, the resources assigned to the virtual media gateway cannot be used for call connections

Method used

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  • Blade cluster switching center server and method for signaling
  • Blade cluster switching center server and method for signaling
  • Blade cluster switching center server and method for signaling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] network view

[0052] Physical resources in the server are not visible or addressable to other nodes. Changing the number of blades has no effect on the configuration of other nodes. In particular, the additional processing power obtained by installing new blades can be utilized without any operational intervention on other nodes.

[0053] From an architectural point of view, two different approaches are used: an MTP (Message Transfer Part) based signaling stack and a non-MTP based signaling stack. Connections to MSC blades can be made as follows:

[0054] GCP (Gateway Control Protocol) can be carried directly on SCTP (Stream Control Transmission Protocol) or on M3UA (MTP3 User Adaptation Layer) / SCTP;

[0055] CN (core network). Call control related signaling (ISUP (ISDN User Part), BICC, TUP (Telephone User Part)) is always carried on the M3UA / SCTP stack.

[0056] - A interface call control signaling (BSSAP) is always carried on the SCCP / M3UA / SCTP stack.

[0057]...

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Abstract

The present invention relates to a switching center server (100) handling calls, comprising a blade cluster with a plurality of different blades (110), a distributor (125, 170) distributing a message relating to a call to one of the blades, a master (130, 150) centrally controlling a usage of pooled resources by said plurality of blades (110) for handling the call, wherein the distributor contacts the master for retrieving the information to which blade said message is to be distributed. The different blades in the blade cluster are seen from the outside as one node, so that for message distribution the master is contacted in order to distribute the message relating to a call to the blade that is handling said call.

Description

technical field [0001] The invention relates to a switching center server for handling calls and a method for distributing signaling messages to call control blades in the switching center server. The invention also relates to a method for routing a reply message from a gateway to a blade of a switching center server having a cluster structure with a plurality of blades. The invention preferably but not exclusively relates to a Mobile Services Switching Center (MSC) server. Background technique [0002] The industry tends to expand MSC servers with large capacity. A typical architecture of such a system is a blade cluster structure. The transmission line carrying the payload is terminated at a media gateway (MGw), and the exchange of these resources is controlled by the MSC server. [0003] Time Division Multiplexing Termination (TDM Termination) is not well suited to be controlled by blade cluster systems since neither call control signaling nor media gateway control sig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04Q2213/13166H04L67/1027H04L67/1008H04Q2213/13164H04Q2213/13292H04Q2213/13098H04L67/1002H04L67/1001H04W28/088H04L67/1029G06F9/505
Inventor 奥利弗·霍尔格·斯帕卡斯伍怡明
Owner TELEFON AB LM ERICSSON (PUBL)