5G NR Cell Quality Parameter Update Logic
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Solution Overview
Problem
In 5G NR, updating measurement configurations poses challenges due to additional configuration parameters, leading to unnecessary discarding of previously performed measurements when cell quality derivation or beam consolidation parameters are updated, as existing methods reset all measurements and related information without distinction.
Innovation Solution
A method where the UE discards or stores existing measurement information and resets timers and measurement-related variables based on specific network-provided parameters, determining which measurements need updating by identifying reconfigured cell quality derivation parameters, such as maximum beams to average and signal quality thresholds, to maintain only necessary updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all measurements are reset when measurement configuration is updated, then measurement consistency is improved, but measurement efficiency deteriorates due to unnecessary discarding of valid measurements
Solution Approach 1:
The patent segments the measurement update process by identifying specific parameters that trigger measurement invalidation (e.g., referenceSignalConfig, absoluteThresholdCellQuality, maxBeamsCellQuality) versus parameters that do not require invalidation. This selective approach divides the measurement configuration into critical and non-critical components, allowing the UE to reset only measurements associated with changed critical parameters while preserving measurements for unchanged parameters.
Solution Approach 2:
The patent applies local quality by treating different measurement parameters with different levels of importance. Critical parameters that affect measurement derivation (such as reference signal configuration and quality thresholds) receive special handling that invalidates associated measurements, while non-critical parameters maintain their measurements. This differentiated treatment ensures measurement consistency where needed while preserving efficiency where not required.
2Adaptability or versatility
If measurement parameters are updated frequently, then network adaptability is improved, but resource consumption increases due to repeated measurement resets
Solution Approach 1:
The patent segments parameter updates into categories that require measurement reset and categories that do not. By identifying specific parameter types (reference signal configuration, quality thresholds, beam parameters) as reset-triggers versus other parameters as non-triggers, the system enables frequent network adaptability updates while consuming resources only when necessary for actual measurement changes.
Solution Approach 2:
The patent implements parameter change detection mechanisms that monitor specific measurement-related parameters. When these parameters change, the UE selectively invalidates associated measurements. This parameter-based control allows the network to update configurations frequently for adaptability while the UE consumes resources only when parameter changes actually affect measurement validity, reducing unnecessary energy consumption from repeated full resets.
Data Source
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AI summary
According to some embodiments, a method performed by a wireless device for updating measurement configuration comprises receiving a measurement configuration from a network node. The measurement configuration comprises a measurement object that includes at least one cell quality derivation parameter. The wireless device has previously stored measurement results associated with the measurement object. The method further comprises: determining the measurement object includes a reconfigured cell quality derivation parameter that changes the way the wireless device determines the quality of a cell; determining a portion of the previously stored measurement results were computed based on the reconfigured cell quality derivation parameter; and removing the portion of the previously stored measurement results. The method may further comprise resetting timers and removing measurement information associated with the removed measurement results.