Terminal Channel Detection and Reporting for Hidden Node Interference
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Solution Overview
Problem
In wireless communication systems, hidden nodes are often unaware of interference, leading to communication dead zones and reduced stability and reliability due to undetected channel interference between nodes that cannot detect each other.
Innovation Solution
A method and system where a terminal with multiple access devices detects channel status and reports interference to a management center, allowing for adjustments in communication parameters to prevent dead zones and reduce long-term interference by accessing alternative networks for reporting when primary access is interfered with.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a node performs channel detection locally, then detection range is limited, but cannot detect interference from hidden nodes
Solution Approach 1:
The patent introduces a coordination manager as an intermediary component that collects channel detection results from multiple nodes and coordinates channel selection. This mediator enables nodes to detect hidden node interference by aggregating detection information from the entire network, overcoming the limited local detection range while maintaining accurate channel status awareness.
Solution Approach 2:
The coordination manager performs multiple functions: collecting detection results from various nodes, processing channel status information, and coordinating channel selection across the network. This multi-functional approach enables comprehensive channel detection coverage without requiring each individual node to have extensive detection capabilities.
2Productivity
If a node cannot detect hidden nodes, then communication can proceed, but communication dead zones are created and reliability decreases
Solution Approach 1:
The patent implements a feedback mechanism where nodes continuously report channel detection results to the coordination manager, which then provides feedback on channel status and interference conditions. This feedback loop enables the system to identify hidden node interference patterns and adjust channel selection dynamically, maintaining communication reliability while avoiding dead zones.
Solution Approach 2:
The system performs preliminary channel detection and coordination before actual communication begins. By detecting potential hidden node interference in advance and coordinating channel selection beforehand, the system prevents communication dead zones from forming and maintains continuous reliable communication.
3Adaptability or versatility
If multiple access devices are used, then alternative access paths are available, but device complexity increases
Solution Approach 1:
The patent segments the terminal into multiple independent access devices, each capable of independently detecting channels and accessing the network. This segmentation provides flexible alternative access paths while keeping each individual access device relatively simple, as they operate autonomously with minimal coordination overhead.
Data Source
AI summary
A method and a system of channel detecting and reporting, a terminal, and a management center are provided. The method includes: a first access device of a terminal detects a channel status of one or more channels; and a second access device of the terminal reports a channel detection result detected by the first access device to destination equipment through an access network. The system includes a terminal and a management center. The terminal can access an access network through various access devices and report a channel detection result to the management center. The management center adjusts communication parameters of relevant equipment according to the detection result. The channel detection result can be reported in time, so that communication dead zones are prevented, and probability of long-term interference on hidden nodes in a communication system is reduced.