Radio Wave Interference Evaluation Using Signal Power Metrics
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Solution Overview
Problem
Existing methods for evaluating radio wave interference in wireless communication systems rely on data retransmission, which is not solely indicative of interference, making it inefficient for accurately assessing external interference.
Innovation Solution
A radio wave interference evaluation apparatus and method that utilize radio quality information, specifically obtaining total received power, reference signal power, and radio resource usage status, to evaluate interference from outside a target wireless communication system without relying on data retransmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data retransmission is used to evaluate radio wave interference, then interference detection is possible, but measurement precision deteriorates because retransmission occurs for reasons other than radio wave interference
Solution Approach 1:
The invention extracts the radio quality information (total received power, reference signal power, radio resource usage status) from the communication system to independently evaluate radio wave interference. This separates the interference evaluation function from the data retransmission mechanism, allowing accurate interference measurement without being confounded by other retransmission causes.
Solution Approach 2:
The invention introduces radio quality information as an intermediary parameter to evaluate radio wave interference. Instead of directly using data retransmission as the evaluation criterion, the patent uses radio quality metrics (particularly the relationship between total received power and reference signal power) as a mediator to indirectly but accurately assess interference conditions.
2Device complexity
If data retransmission metrics are used for interference evaluation, then system complexity is reduced, but measurement precision worsens due to inability to distinguish interference from other retransmission causes
Solution Approach 1:
The invention makes the radio quality information serve multiple functions: it is used both for normal communication quality assessment and for specific radio wave interference evaluation. The total received power and reference signal power metrics, already collected for communication management, are repurposed to detect interference, avoiding additional complex measurement systems while maintaining high precision.
3Measurement precision
If radio quality information is used to evaluate external interference, then measurement precision improves, but device complexity increases due to additional measurement requirements
Solution Approach 1:
The communication system itself generates and provides the radio quality information needed for interference evaluation. The terminal device measures total received power and reference signal power as part of its normal operation, and this self-generated data is used to evaluate external interference, eliminating the need for separate external measurement devices or additional complex measurement infrastructure.
Data Source
AI summary
A radio wave interference evaluation apparatus includes at least one processor, the at least one processor carrying out: an obtaining process of obtaining a total received power in a predetermined frequency band measured at a point in a communication area of a target wireless communication system, a received power of a reference signal of the target wireless communication system measured at the point, and a status of radio resource usage of the target wireless communication system; and an evaluation process of evaluating radio wave interference with the target wireless communication system from outside the target wireless communication system.