Unified Access Switch for Per-Session Protocol Conversion
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Solution Overview
Problem
Telecommunication carriers face challenges in upgrading existing infrastructures to support high-bandwidth services like VoIP, VoDSL, UMTS, and other wireless formats, as they require significant labor and resources to maintain and upgrade transition networks for bundled voice and data services.
Innovation Solution
A multimedia session-based switching system that includes a media gateway capable of converting and switching various protocols and codecs across different networks, including TDM, ATM, IP, and wireless formats, enabling seamless interworking across multiple protocols and networks on a per-session basis, with features like echo cancellation and media bridging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate switches and media gateways are deployed to support various voice and data services, then service coverage and compatibility are improved, but network complexity and maintenance labor increase significantly
Solution Approach 1:
The patent combines multiple separate voice switches and data switches into a single unified access switch that can handle both voice and data services simultaneously. This consolidation reduces the number of network devices from multiple separate switches to one integrated device, directly addressing the technical contradiction by maintaining service coverage while reducing network complexity.
Solution Approach 2:
The unified access switch is designed with multi-functional capabilities to support various voice services (PSTN, VoIP, VoDSL) and data services (xDSL, cable modem, wireless) through a single device. This universal design allows one switch to perform the functions previously requiring multiple specialized switches, thereby reducing network complexity while preserving adaptability.
2Reliability
If traditional separate voice and data network infrastructures are maintained, then existing service reliability is preserved, but upgrading to support new high-bandwidth services becomes increasingly difficult and costly
Solution Approach 1:
The unified access switch incorporates dynamic service templates that can be flexibly configured and modified to support emerging services. The system uses dynamic service template instantiation to adapt to new service requirements without requiring infrastructure overhaul, thereby maintaining reliability while enhancing upgrade capability.
Solution Approach 2:
The patent segments service functionality into independent service templates that can be individually configured, activated, or modified. This segmentation allows specific services to be upgraded or added without affecting the entire network infrastructure, preserving overall system reliability while enabling targeted upgrades for new high-bandwidth services.
3Productivity
If per-session switching is implemented for multiple wireline and wireless data types, then service integration and efficiency are improved, but switching system complexity increases
Solution Approach 1:
The switching system uses service templates with configurable parameters that define service-specific switching behaviors. By parameterizing the switching logic rather than hardcoding separate handling for each service type, the system achieves efficient per-session switching for multiple data types while managing complexity through standardized template-based configuration.
Data Source
AI summary
An apparatus including a sub-element processing (SEP) module configured to perform sub-element and/or per-session processing for each of a plurality of data elements included in data being switched between ones of a plurality of transmission links. The data can include wireless packet data, wireless non-packet data, wireline packet data, wireline non-packet data, and combinations thereof. The sub-element and/or per-session processing includes at least one of extracting and bundling at least one of voice data, encoding data and signaling data corresponding to one of a plurality of channels or sessions bundled within individual ones of the plurality of data elements.