Microwave Link Bandwidth Notification for PTN Service Congestion
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Solution Overview
Problem
Current Packet Transport Network (PTN) Operation, Administration, and Management (OAM) functions are insufficient to notify service endpoints of bandwidth changes in microwave links, leading to service congestion due to outdated bandwidth information.
Innovation Solution
A bandwidth information notification method that detects the current modulation mode of microwave links and sends this information to service connection endpoints, allowing them to adjust their policies and prevent congestion by utilizing the network node's detecting, obtaining, and sending units to provide real-time or periodic bandwidth updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If PTN OAM functions use general operations only, then device complexity is reduced, but service endpoints cannot obtain real-time bandwidth information causing service congestion
Solution Approach 1:
The patent implements a feedback mechanism where network nodes detect current modulation modes of microwave links and notify service endpoints of the bandwidth information. This feedback loop enables endpoints to adjust their traffic control policies based on real-time bandwidth changes, resolving the information loss problem without requiring complex new OAM functions throughout the entire network.
Solution Approach 2:
The patent uses modulation mode detection as an intermediary mechanism to indirectly convey bandwidth information to service endpoints. Instead of directly managing complex bandwidth notification systems, the solution leverages existing modulation mode detection capabilities to infer and communicate bandwidth changes, thereby avoiding excessive device complexity while still providing necessary information.
2Productivity
If microwave links perform adaptive modulation, then bandwidth utilization is improved, but service endpoints cannot adjust traffic control policies due to lack of real-time bandwidth notification
Solution Approach 1:
The patent establishes a feedback mechanism where network nodes monitor adaptive modulation changes in real-time and notify service endpoints of the current bandwidth. This enables endpoints to dynamically adjust their traffic control policies in response to bandwidth changes, preventing service congestion while maintaining the benefits of adaptive modulation.
Solution Approach 2:
The patent implements preliminary notification of bandwidth changes before service congestion occurs. By detecting modulation mode changes and notifying endpoints in advance, the system allows endpoints to proactively adjust their traffic control policies, preventing congestion rather than reacting to it after it occurs.
Data Source
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AI summary
The present invention relates to the field of communication technologies, and discloses a bandwidth information notification method, a service processing method, a network node, and a communication system. The bandwidth information notification method includes: obtaining current bandwidth information of a link; and sending the bandwidth information to an endpoint of a service connection through the service connection which passes through the link, so that the endpoint of the service connection adjusts a service policy according to the bandwidth information. Through the technical solutions provided in the embodiments of the present invention, an endpoint of a service connection which passes through a microwave link may obtain bandwidth information of the microwave link, where the bandwidth information is obtained after adaptive modulation of the microwave link.