Hybrid Network Path Discovery with Channel Type Tracking
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Solution Overview
Problem
Current path discovery procedures in hybrid communication networks, such as G3-PLC and RF networks, lack the capability to provide information on the type of physical medium used for each link, limiting network administrators' ability to monitor and maintain the network effectively.
Innovation Solution
Incorporating dedicated channel type fields in path request and path reply messages to indicate the physical medium used in each communication link, allowing for the collection and transmission of channel type information during the path discovery process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If path discovery procedures are implemented in hybrid communication networks, then network connectivity and routing capability are improved, but the ability to provide information on physical medium type for each link deteriorates (lack of channel type information)
Solution Approach 1:
The path discovery message is segmented to include individual channel type indicator fields for each communication link traversed. Each indicator separately identifies the physical medium type (PLC or RF) of a specific link, allowing granular tracking of channel types along the entire path without losing information about any individual link's characteristics.
Solution Approach 2:
Intermediate devices in the communication path act as mediators that extract channel type information from incoming messages and insert appropriate channel type indicators for their outgoing messages. These intermediaries ensure that channel type information is propagated throughout the network path, enabling the destination and source devices to reconstruct complete channel type profiles for all links traversed.
2Loss of information
If dedicated channel type fields are added to path request and path reply messages, then channel type information collection capability is improved, but message structure complexity increases
Solution Approach 1:
The channel type indicator fields use simplified parameter encoding with discrete values representing different physical medium types (e.g., binary indicators for PLC vs. RF). This parameterization approach maintains information completeness while avoiding complex data structures, as each link's channel type is represented by a simple, standardized indicator that can be easily processed and stored.
3Ease of operation
If channel type information is collected and transmitted during path discovery, then network monitoring and maintenance capability is improved, but processing overhead and message size increase
Solution Approach 1:
The solution extracts only the essential channel type information (physical medium type identification) from the complex communication environment, separating this critical monitoring data from other detailed link characteristics. By taking out only the necessary channel type indicators rather than transmitting complete link configuration data, the message size increase is minimized while still providing sufficient information for effective network monitoring and maintenance operations.
Data Source
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AI summary
A communication network comprises a plurality of electronic devices coupled via a plurality of communication links. The communication links comprise links over a first physical medium and links over a second physical medium. A method of operating the network comprises: - issuing, at an originator device (200), a path request message directed towards a destination device (204), - transmitting the path request message from the originator device (200) to the destination device (204) through a first set of intermediate devices (202) via a forward sequence of links, - issuing, at the destination device (204), a path reply message directed towards the originator device (200), and - transmitting the path reply message from the destination device (204) to the originator device (200) through a second set of intermediate devices (202) via a reverse sequence of links. Transmitting the path request message via a link in the forward sequence comprises setting a respective channel type field of the path request message to a value indicative of the physical medium used in said link, and transmitting the path reply message via a link in the reverse sequence comprises setting a respective channel type field of the path reply message to a value indicative of the physical medium used in said link.