Measurement Configuration Management for Carrier Aggregation
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Solution Overview
Problem
In wireless communications systems, managing measurement configurations for component carriers becomes complex when carriers are added or removed due to network conditions, leading to unclear handling of measurement configurations by User Equipment (UE) and evolved Node B (eNB).
Innovation Solution
A communications apparatus with a wireless module and a controller module that receives and keeps measurement configurations for both original and new component carriers, updating information elements in the measurement configurations to maintain accurate signal quality measurements during carrier replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If component carriers are dynamically added or removed based on network conditions, then network adaptability and resource utilization are improved, but measurement configuration management complexity increases
Solution Approach 1:
The measurement configuration is segmented into multiple information elements (measurement object, reporting configuration, measurement identity) that can be independently managed and reconfigured when component carriers are added or removed, reducing the overall management complexity
Solution Approach 2:
The measurement configuration is designed to be dynamic and adaptable, allowing the UE to automatically adjust measurement configurations when component carriers are added or removed through the received messages, eliminating the need for manual reconfiguration and reducing operational complexity
2Measurement precision
If measurement configurations are maintained for both original and new component carriers during replacement, then measurement precision is improved, but information management complexity increases
Solution Approach 1:
The UE receives and stores the second measurement configuration for the new component carrier before the actual carrier replacement occurs, ensuring that measurement capabilities are already prepared and no measurement precision is lost during the transition
Solution Approach 2:
The measurement configuration parameters are updated to reflect the new component carrier while maintaining the structural integrity of the configuration, allowing seamless transition without losing measurement accuracy
3Reliability
If measurement configurations are updated during carrier replacement, then reliability of signal quality assessment is improved, but processing time increases
Solution Approach 1:
The measurement configurations are prepared and validated in advance before the carrier replacement is executed, ensuring that the UE can immediately switch to measuring the new component carrier without interruption to signal quality assessment reliability
Solution Approach 2:
The measurement process continues uninterrupted during the carrier replacement by maintaining measurement configurations for both the original and new component carriers simultaneously, ensuring continuous and reliable signal quality monitoring
Data Source
AI summary
A communications apparatus includes a wireless module and a controller module is provided. The wireless module transmits and receives radio frequency signals to and from a service network via at least a first and a second component carriers. The controller module receives a first measurement configuration corresponding to the first component carrier from the service network, receives a message indicating that the first component carrier is replaced by a third component carrier from the service network via the wireless module, receives a second measurement configuration corresponding to the third component carrier from the service network via the wireless module, keeps at least one of the first and second measurement configurations in response to receiving the message, and performs measurements according to the kept measurement configuration.