DSL Unit Cross-Connection for Interface Format Conversion
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Solution Overview
Problem
Conventional DSL communication networks lack flexibility in connecting different interface types, limiting the ability to distribute various network technologies such as Ethernet over telephone networks.
Innovation Solution
The solution involves configuring DSL units with multiple application ports for different interface formats, allowing cross-connection and conversion between G.703, Nx64k, and Ethernet signals by extracting timeslots, encoding, and reformatting them for transmission over DSL pairs, enabling connection of dissimilar interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DSL units are configured with multiple application ports for different interface formats, then network flexibility and adaptability are improved, but device complexity increases
Solution Approach 1:
The DSL unit is designed with multiple application ports that can handle different interface formats (G.703, Ethernet, Nx64k) simultaneously. Each port can be configured to support various interface types, allowing a single device to perform multiple functions and adapt to different network connection requirements, thereby resolving the contradiction between flexibility and complexity
Solution Approach 2:
The system enables dynamic configuration of interface formats through software control. The DSL unit can dynamically switch between different interface types and timeslot allocations based on real-time network requirements, allowing flexible adaptation without requiring physical hardware changes, thus managing complexity while maintaining versatility
2Adaptability or versatility
If cross-connection and conversion between different interface formats are enabled, then adaptability is improved, but processing complexity increases
Solution Approach 1:
The patent introduces an intermediary timeslot-based transmission layer that mediates between different interface formats. All interface formats are converted to a common timeslot representation for transmission over DSL, and then converted to the target interface format at the destination. This intermediary layer simplifies the conversion process by providing a standardized intermediate representation
Solution Approach 2:
The conversion process is segmented into distinct stages: reception of input signal, extraction of timeslots, transmission over DSL, and regeneration of output signal. By dividing the complex conversion task into separate functional blocks, the system manages processing complexity while maintaining high adaptability across different interface formats
3Adaptability or versatility
If timeslots are extracted and reformatting is performed for each interface type, then interface flexibility is improved, but processing time increases
Solution Approach 1:
The system performs preliminary action by extracting timeslots from the input signal and preparing them for transmission before the actual interface conversion is needed. The timeslot extraction and DSL framing are performed in advance, allowing the receiving end to focus solely on regeneration and output conversion, thereby reducing overall processing time while maintaining interface flexibility
Data Source
AI summary
A communication network comprises a first digital subscriber line (DSL) unit having a plurality of application ports and at least one DSL port; and a second DSL unit having a plurality of application ports and at least one DSL port; wherein the first DSL unit is communicatively coupled to the second DSL unit via a DSL pair coupled to the at least one DSL port in each of the first and second DSL units; and wherein each of the first and second DSL units are configured to receive a signal of a first interface format over one of the plurality of application ports, extract timeslots from the received first interface format signal, transmit the timeslots over the at least one DSL port, and use timeslots received over the at least one DSL port to generate at least one second signal of a dissimilar interface format.