Radio Resource Interference Detection via Relative Power Comparison
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Solution Overview
Problem
The existing method for determining radio resource interference is inadequate, as it fails to properly identify interference when an inappropriate threshold is set, leading to incorrect assessments.
Innovation Solution
A communication apparatus and system that compare interference powers across multiple radio resources to determine interference, using comparison and determination units to assess whether interference has occurred based on the comparison results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a threshold is set to determine interference occurrence, then the determination process can be simplified, but the measurement precision deteriorates when the threshold is inadequate
Solution Approach 1:
The patent changes the parameter for interference determination from a single absolute threshold to a relative comparison based on interference power differences between resource blocks. By using the difference in interference power levels across multiple resource blocks as the determination criterion, the system adapts to varying interference conditions without requiring manual threshold calibration, thereby maintaining both simplicity and precision.
2Reliability
If a large threshold is used for interference determination, then false alarms are reduced, but the reliability deteriorates when actual interference is missed
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring interference power differences between resource blocks and using this information to dynamically determine interference occurrence. The system compares the interference power of a given resource block with that of other resource blocks, and the determination is based on the relative difference rather than a fixed threshold, allowing the system to adapt to changing interference conditions and reduce false negatives.
3Measurement precision
If interference power is measured on a resource block basis, then the measurement granularity is increased, but the device complexity increases due to multiple measurements required
Solution Approach 1:
The patent merges the interference measurement process by measuring interference power across multiple resource blocks simultaneously and then comparing these measurements to determine interference occurrence. Instead of requiring separate complex measurements for each resource block independently, the system combines the measurements and uses their relative differences to make the determination, thereby reducing overall measurement complexity while maintaining precision.
Data Source
AI summary
Provided is a more appropriate determination method in determining radio resources with which interference has occurred. A communication apparatus, which uses a radio resource group including a plurality of radio resources, includes: a comparison unit that makes mutual comparison of the interference powers of at least two of a plurality of radio resources; and a determination unit that determines, on the basis of a result of the comparison made by the comparison unit, whether interference has occurred with the radio resources compared by the comparison unit.