Wireless Network Node Status Detection via GTP-U Echo
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Solution Overview
Problem
Current methods for peer end network status detection in wireless networks, such as pinging and GTPU responses, result in high CPU and network traffic consumption, especially when dealing with numerous base stations or interfaces, leading to poor scalability.
Innovation Solution
A status detection method that uses GTP-U Echo Request packets to determine if a peer end network node is online within a preset time interval, minimizing the need for probe packets and reducing traffic consumption by leveraging existing data traffic, and resending probe packets only when necessary to determine offline status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic pinging or GTPU response detection is used to determine peer end network status, then network status detection reliability is improved, but network traffic consumption and CPU load increase significantly
Solution Approach 1:
The patent makes the detection system self-service by having the peer end node actively send GTP-U Echo Request packets. Instead of one node periodically probing another, each node serves its own detection needs by initiating Echo Requests and monitoring Echo Responses, eliminating the need for external probe traffic while maintaining reliable status detection.
Solution Approach 2:
The GTP-U Echo Request and Echo Response packets serve dual purposes: they function as both data traffic (carrying normal GTP-U payload) and as detection packets (carrying status information). This multi-functionality allows the system to maintain network status detection capabilities without generating additional dedicated probe traffic, thereby reducing overall network traffic consumption.
2Reliability
If periodic status detection packets are sent to tens or hundreds of base stations or interfaces, then network status monitoring coverage is improved, but scalability deteriorates due to high CPU and network traffic consumption
Solution Approach 1:
Each peer end node independently performs status detection by sending GTP-U Echo Requests and receiving Echo Responses. This distributed self-service approach eliminates the need for a centralized detection system that would need to manage probes to numerous nodes, allowing the system to scale to tens or hundreds of base stations without proportionally increasing CPU load or traffic consumption at any single point.
3Measurement precision
If probe packets are sent periodically to detect offline status, then detection accuracy is improved, but unnecessary traffic consumption occurs when peer ends are online
Solution Approach 1:
The patent implements periodic action selectively: GTP-U Echo Requests are sent at regular intervals only when status detection is needed, and the peer end responds with Echo Responses. This periodic mechanism maintains detection accuracy while avoiding continuous probe traffic, as the system can adjust the periodicity based on actual network conditions and only activates detection traffic when necessary.
Solution Approach 2:
The patent extracts the detection function from separate probe packets and integrates it into the existing GTP-U data traffic flow. By embedding status detection within normal data packets (using Echo Request/Response mechanisms), the system achieves accurate detection without extracting or adding separate probe traffic, thereby eliminating unnecessary traffic consumption when peer ends are online.
Data Source
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AI summary
This application discloses a status detection method and a wireless network node. The wireless network node in this application includes: a judging unit, configured to determine whether a normal data packet sent by a target wireless network node is received within a first preset time interval; a determining unit, configured to: when the judging unit determines that the normal data packet sent by the target wireless network node is received within the first preset time interval, determine that a status of the target network node is online; a sending unit, configured to send a probe packet to the target wireless network node when the judging unit determines that the normal data packet sent by the target wireless network node is not received within the first preset time interval, where the determining unit is further configured to: when a first response message returned by the target wireless network node is received, determine that the status of the target network node is online. According to this application, traffic consumption between networks is greatly reduced, load on a network device is reduced, and detection efficiency is improved.