Wireless Measurement Failure Reporting for Beam Coverage Gaps
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Solution Overview
Problem
In wireless communication systems, incorrect configuration of measurement windows can lead to incomplete measurement of reference signals, resulting in inaccurate UE measurements for serving or neighbor cells, necessitating improved measurement failure reporting mechanisms.
Innovation Solution
A wireless device is configured with a measurement window and performs measurements within it, detecting failures if the number of beams or reference signals measured falls below a minimum threshold, and reports these failures to the network for re-configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the measurement window is configured to include all reference signals for accurate measurement, then measurement precision is improved, but the complexity of configuration increases and power consumption increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors measurement quality metrics (such as RSRP thresholds, measurement success rates) and reports measurement failure indications to the network. Based on this feedback, the network dynamically adjusts and re-configures the measurement window parameters to achieve accurate measurements while optimizing configuration complexity.
Solution Approach 2:
The measurement window configuration is made dynamic rather than static. The network can re-configure measurement window parameters (timing, duration, frequency resources) based on real-time measurement performance and network conditions, allowing the system to adapt to changing requirements without excessive complexity.
2Measurement precision
If the measurement window is configured to include all reference signals for accurate measurement, then measurement precision is improved, but power consumption increases
Solution Approach 1:
Instead of continuously measuring all reference signals, the UE performs measurements only when triggered by specific events or within optimized time windows. The system uses partial measurement actions (measuring only necessary reference signals at specific times) to achieve accurate measurements while reducing overall power consumption compared to continuous full-spectrum monitoring.
Solution Approach 2:
The measurement process is organized into periodic measurement occasions or windows rather than continuous operation. The UE activates measurement functions periodically according to configured measurement opportunities, allowing the system to achieve measurement accuracy while consuming less power during non-measurement periods.
3Measurement precision
If the UE performs measurements continuously to ensure accurate results, then measurement precision is improved, but the loss of time for other operations increases
Solution Approach 1:
Measurements are performed periodically at configured occasions rather than continuously. This allows the UE to dedicate specific time resources to measurement activities while performing other operations during non-measurement periods, thereby maintaining measurement accuracy without excessive time loss for data transmission or other functions.
Solution Approach 2:
The network pre-configures measurement parameters, windows, and triggers before the UE needs to perform measurements. This preliminary configuration allows the UE to execute measurements efficiently at predetermined times without requiring continuous monitoring or decision-making, reducing time loss for other operations.
Data Source
AI summary
A method and apparatus for measurement failure reporting in a wireless communication system is provided. A wireless device receives, from a network, a measurement configuration including information on a measurement window. A wireless device performs measurements for a cell based on the measurement window. A wireless device detects a failure of the measurement, based on that a number of beams or a number of reference signals measured within the measurement window is less than a minimum number of beams or a minimum number of reference signals. A wireless device reports, to the network, the failure of the measurements for the cell.