UE Measurement Report Adaptation for Radio Link Reliability
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Solution Overview
Problem
In wireless communication networks, especially in 5G technologies, the large size of measurement reports due to inclusion of both cell and beam level measurements can lead to transmission failures in challenging radio conditions, resulting in uplink coverage issues and increased risks of radio link failures and lost connections.
Innovation Solution
A method where the UE transmits a report with restricted content of reduced size by excluding certain information when radio conditions are poor, based on configuration data from the radio network node that defines conditions for transmitting reports below a threshold, thereby ensuring successful transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE includes both cell and beam level measurements in the measurement report, then the measurement precision is improved, but the report size increases leading to transmission failures in challenging radio conditions
Solution Approach 1:
The patent implements dynamic adaptation of the measurement report content based on current radio conditions. The UE evaluates the radio condition and selectively includes only necessary measurement information (cell level or both cell and beam level) in the report, making the report structure flexible and adaptive rather than fixed. This resolves the contradiction by adjusting the report content dynamically to maintain transmission reliability while preserving measurement precision when conditions permit.
Solution Approach 2:
The patent changes the parameter of report content composition based on radio condition thresholds. When radio conditions are good, the UE includes comprehensive measurements (both cell and beam level). When radio conditions deteriorate below a threshold, the UE modifies the report to include only essential cell level measurements, excluding beam level details. This parameter change in report structure resolves the contradiction between measurement precision and transmission reliability.
2Loss of information
If the UE transmits comprehensive measurement reports, then the information completeness is improved, but the uplink coverage is degraded due to transmission failures in challenging radio conditions
Solution Approach 1:
The patent applies dynamic adaptation by adjusting the information content of measurement reports based on evaluated radio conditions. The UE selectively includes beam level measurements only when radio conditions support reliable transmission. This dynamic approach maintains information completeness when possible while preventing uplink coverage degradation during challenging conditions, resolving the contradiction between information completeness and harmful transmission failures.
Solution Approach 2:
The patent implements partial action by including only the necessary subset of measurement information in the report based on current radio conditions. When conditions are poor, the UE transmits partial information (cell level only) rather than attempting to transmit complete information (both cell and beam level), which would likely fail. This partial transmission approach resolves the contradiction by accepting reduced information completeness to avoid transmission failures that degrade uplink coverage.
3Measurement precision
If the measurement report includes beam level measurements, then the measurement detail is improved, but the transmission reliability decreases in challenging radio conditions
Solution Approach 1:
The patent implements dynamic control of beam level measurement inclusion based on radio condition evaluation. The UE assesses the radio condition and decides whether to include beam level measurements in the report. This dynamic decision-making process resolves the contradiction by including detailed beam level information only when transmission conditions are favorable, thereby maintaining both measurement detail and transmission reliability.
Solution Approach 2:
The patent changes the parameter of measurement report composition by selectively including or excluding beam level measurements based on radio condition thresholds. When radio conditions are good, the report includes detailed beam level information. When conditions deteriorate, the UE modifies the report parameter to exclude beam level details and include only cell level measurements. This parameter change resolves the contradiction between measurement detail and transmission reliability.
Data Source
AI summary
Embodiments herein relate to, e.g., a method performed by a user equipment, UE, for handling signal measurements. The UE determines whether one or more conditions are fulfilled for indicating that a radio condition is below a certain level. In response to determining that one or more conditions are fulfilled and thereby indicating the radio condition is below a threshold, the UE transmits a report with restricted content.