Single DSP Transcoder-Free Media Gateway Operation
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Solution Overview
Problem
Transcoder-free operation in telecommunications networks is challenging due to the need for separate DSPs to monitor each endpoint and complex HDLC connection establishment, which increases resource usage and complexity.
Innovation Solution
Implementing a method that uses a single digital signal processor (DSP) to monitor and map between encoding rates and indices of media endpoints, establishing a transcoder-free connection over an Ethernet switching fabric, reducing resource requirements and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate DSPs are used to monitor each endpoint for transcoder-free operation, then transcoder-free connection can be established, but device complexity and resource usage increase
Solution Approach 1:
The patent merges the functionality of multiple DSPs into a single DSP that can monitor both endpoints of a media stream connection. The single DSP maintains encoding rate and index information for both endpoints, eliminating the need for separate DSPs while still enabling transcoder-free operation. This consolidation reduces device complexity and resource usage while preserving the reliability of transcoder-free connections.
2Reliability
If HDLC connections are used to interconnect DSPs, then transcoder-free operation is achieved, but connection establishment complexity increases
Solution Approach 1:
The patent extracts the HDLC connection establishment complexity by using a single DSP that internally manages both endpoints without requiring separate HDLC connections between multiple DSPs. The single DSP maintains encoding rate and index mappings for both endpoints locally, eliminating the need for complex HDLC connection establishment procedures while still achieving reliable transcoder-free operation.
3Adaptability or versatility
If multiple voice servers with separate DSPs are used, then endpoint monitoring capability is improved, but cost and resource consumption increase
Solution Approach 1:
The patent implements a single DSP that performs multiple functions: monitoring encoding rates for both endpoints, maintaining index mappings for both endpoints, and enabling transcoder-free operation for both endpoints. This multi-functional approach provides the same endpoint monitoring capability as multiple DSPs while significantly reducing DSP resource consumption and associated costs.
Data Source
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AI summary
Methods, systems, and computer program products for providing transcoder-free operation in a media gateway are disclosed. In one method, first and second lists of media encoding rates and corresponding indices used by first and second media endpoints of a media stream connection are received. It is determined whether transcoder-free operation is possible for the media stream connection based on the first and second lists. In response to determining that transcoder-free operation is possible for the media stream connection, a transcoder-free connection is established in the media gateway between the first and second endpoints using a single digital signal processor to monitor and map between indices and encoding rates used by the first and second endpoints during the media stream connection.