Wireless Link Quality Evaluation Using RSRP Threshold Adaptation
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Solution Overview
Problem
Existing wireless communication systems face challenges in balancing power consumption and link quality evaluation, where inappropriate configuration of evaluation time can lead to communication degradation and increased power consumption due to frequent or infrequent measurements.
Innovation Solution
A method for wireless communications that involves measuring first reference RSRP and executing link quality evaluations based on specific criteria, adjusting evaluation periods and resource configurations based on event triggers, including physical and MAC layer signaling, to optimize power savings and communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If link quality evaluation is performed frequently, then communication quality is maintained, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the evaluation period variable rather than fixed. The terminal device dynamically adjusts the link quality evaluation period based on RSRP change thresholds: when RSRP changes exceed a threshold, the evaluation period is shortened to maintain quality; when changes are minimal, the period is extended to save power. This dynamic adaptation resolves the contradiction between frequent evaluation for quality and infrequent evaluation for power saving.
Solution Approach 2:
The patent changes the parameter of evaluation period duration based on measured RSRP differences. By comparing current RSRP with reference RSRP and determining whether the difference exceeds a threshold, the system adjusts the evaluation frequency parameter accordingly. This parameter change strategy allows the system to optimize between communication quality and power consumption based on actual channel conditions.
2Use of energy by moving object
If link quality evaluation period is extended to save power, then power consumption is reduced, but link quality degradation occurs
Solution Approach 1:
The system dynamically adjusts the evaluation period based on actual channel conditions. When RSRP remains stable (difference below threshold), the evaluation period is extended to save power. When RSRP changes significantly (difference exceeds threshold), the period is shortened to maintain quality. This dynamic behavior prevents quality degradation while maximizing power savings during stable conditions.
Solution Approach 2:
The patent implements feedback by continuously measuring RSRP and using this information to adjust the evaluation period. The terminal compares current RSRP measurements with reference values, and based on whether the difference exceeds a threshold, feedback controls the timing of subsequent evaluations. This closed-loop feedback mechanism ensures quality is maintained when needed while allowing power savings when conditions permit.
3Adaptability or versatility
If reference signal resource configuration changes, then system adaptability is improved, but determining optimal evaluation timing becomes complex
Solution Approach 1:
The patent manages configuration changes by focusing on a key parameter: the RSRP difference threshold. Regardless of how reference signal resource configurations change (adding, removing, or modifying resources), the terminal consistently applies the same threshold-based logic to determine evaluation timing. This parameter-centric approach simplifies control complexity while maintaining adaptability to various configuration scenarios.
Solution Approach 2:
The patent creates a universal evaluation mechanism that works across different reference signal configurations. The threshold-based RSRP comparison method is applicable whether the configuration involves single or multiple resources, different resource types, or various update patterns. This universal approach handles configuration flexibility without increasing control complexity, as the same core logic adapts to different scenarios.
Data Source
AI summary
The present application provides a method and device for wireless communications, comprising as a response to a first event, measuring first reference RSRP; executing a link quality evaluation based on a first measurement criterion; wherein when a difference value between the first reference RSRP and current RSRP is less than a first threshold, the first measurement criterion is satisfied; when a difference value between the first reference RSRP and the current RSRP is not less than a first threshold, the first measurement criterion is not satisfied; the meaning of the phrase of executing a link quality evaluation based on a first measurement criterion comprises: when the first measurement criterion is satisfied, an evaluation on first radio link quality is completed within a first evaluation period. The present application can better save electricity through the first measurement criterion.