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Dynamic transcoder placement

A transcoder and transcoding technology, applied in the field of telecommunications, can solve the problem of placing resources that cannot be transcoded, and achieve the effect of allowing intelligent selection

Active Publication Date: 2011-01-19
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the BSC cannot place transcoding resources within the core network without risking the consequence that said transcoding resources may not actually be available in the core network

Method used

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Examples

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Embodiment Construction

[0026] According to one embodiment of the invention, a procedure is proposed which allows deciding whether the transcoder will be placed in the RAN or in the core network. Since the BSC should be the node that ultimately selects the codec type for RAN access, the decision is made within the BSC.

[0027] To support the decision process, the MSC provides information about the availability of transcoder resources in the core network.

[0028] By providing such information, the BSC is enabled to determine whether a transcoder function is required for the call, within the TRAU associated to the BSC, or whether the transcoder function of the selected media gateway can be used.

[0029] In a further embodiment, the MSC may also indicate its preference where transcoder resources for a particular codec type should be placed in the RAN or within the selected MGW.

[0030] Introducing preference information provides a way to utilize existing transcoder resources for a particular codec ...

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Abstract

The invention provides for a dynamic trancoder placement in case that transcoding functionality for codecs is offered in a TRAU associated to a Base Station Controller and / or a MGW selected for a call.

Description

technical field [0001] The present invention relates to the field of telecommunications, and more particularly, to the placement of transcoding resources. Background technique [0002] Recently, discussions have been initiated in the 3GPP standardization body to use IP transport bearers for the A interface (A over IP, AoIP), which is between the radio network (RAN) and the core network (CN). In the discussion, it is specified that IP transport over the A-interface user plane connection provides transcoder functionality from the corresponding GERAN (GSM EDGE Radio Access Network) node (where the transcoder functionality is placed between the associated transcoder and Rate Adapter Unit (TRAU)) moves to a node within the core network, namely a Media Gateway (MGW) node. [0003] If the transcoder function is placed in GERAN according to the current 3GPP standard, then PCM is used as the codec type on the A-interface user plane connection. If the transcoder function is placed i...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04M7/00
CPCH04W88/12H04W88/181H04M7/0072H04L65/601H04L65/75
Inventor D·坎普曼
Owner TELEFON AB LM ERICSSON (PUBL)
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