Method for assigning transcoding channel elements

Inactive Publication Date: 2005-06-16
GOOGLE TECHNOLOGY HOLDINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that only so many of these type of channel element (one kind of vocoder to another distinct kind of vocoder) are provided and are not adjustable while the communication system is operational.

Method used

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  • Method for assigning transcoding channel elements
  • Method for assigning transcoding channel elements
  • Method for assigning transcoding channel elements

Examples

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Embodiment Construction

[0011]FIG. 1 depicts a communication system 10 including the interconnection of 2G (second generation) network 20, such as an iDEN network coupled to a 3G (third generation) network 25 such as a CDMA network. Coupled to 2G network 20 is voice signaling gateway (VSGW) 30. Coupled between the voice signaling gateway 30 and 3G network 25 is a transcoder 40.

[0012] The transcoding function 40 has a set of 2G vocoders 43, 46-N. Further, transcoder 40 has a set of 3G vocoders 42 including vocoders 44, 47-M. Coupling the sets of vocoders 41 and 42 is a channel element control and switching 45. Conceptually, channel element and control and switching 45 interconnects a particular vocoder, for example vocoder 43 for coupling with 2G network 20 with a vocoder, for example vocoder 47, for coupling and translating with 3G network 25.

[0013] Within transcoder 40, channel element control and switching 45 basically selects a compatible vocoder to be compatible with the input being received from 2G ...

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Abstract

A transcoder (40) includes a method for assigning transcoder channel elements (43, 44). The transcoding assignment method selects a DSP (60-75) selects a DSP (channel element) of the required type which has available channel elements (98). Further, the transcoding assignment method may dynamically reassign (118) DSPs from one channel element type to another.

Description

BACKGROUND OF THE INVENTION [0001] The present invention pertains to communication systems and more particularly to transcoding methods for converting coded voice between different transport types. [0002] For speech or voice transmission in modern communication systems, the speech or voice is vocoded (voice coded) by digitization and sampling on one end and reconstruction on the other end. As the vocoded signals are transmitted from one network to another they must be recoded or transcoded to another type of signal compatible with the receiving network. Current transcoding methods use a limited number of channel types to convert coded voice to sampled voice for conversion from an Internet Protocol (IP) transport to a time division multiplex transport and vice versa. [0003] The transcoding function is typically performed by a gateway which connects one network to another. The transcoders of such gateways currently provide a limited number of channel element types, conversions from on...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04J3/16H04L12/28H04L29/06
CPCH04L29/06027H04L65/103H04L65/104H04L65/605H04L65/765H04L65/1101
Inventor SLIGO, JOSEPH C.DESUTTER, BARBARA M.OLDS, KEITH A.
Owner GOOGLE TECHNOLOGY HOLDINGS LLC
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