Radio Base Station PSCell Addition Update Mechanism
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Solution Overview
Problem
The reliability of conditional Primary SCell (PSCell) addition/change procedures in radio communication systems, particularly when using high-frequency bands like FR2, is compromised due to radio wave properties, leading to potential failures and delays in updating execution conditions.
Innovation Solution
A radio base station and communication method that include a control unit for managing the PSCell addition/change procedure, a reception unit for receiving messages from another base station, and a transmission unit for updating execution conditions, allowing for timely and reliable updates by distinguishing and updating PSCell IDs and associated execution conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conditional PSCell addition/change procedure is used to simplify the process, then the ease of operation is improved, but the reliability deteriorates due to radio wave properties in high-frequency bands
Solution Approach 1:
The patent applies preliminary action by pre-configuring execution conditions for PSCell addition/change before the actual procedure is triggered. The network side determines and configures conditions (such as measurement thresholds, event triggers) in advance, allowing the UE to automatically execute the procedure when conditions are met, thereby simplifying operation while maintaining reliability through pre-validated configuration parameters.
2Reliability
If execution condition update is performed frequently to improve reliability, then the reliability is improved, but the loss of time increases due to update delays
Solution Approach 1:
The patent implements periodic action by establishing scheduled updates of execution conditions at predetermined intervals or triggered by specific network events. Instead of continuous or ad-hoc updates, the system periodically refreshes execution condition parameters (such as measurement configurations, threshold values) based on network state changes or time-based triggers, balancing reliability with time efficiency.
3Measurement precision
If detailed execution condition parameters are configured to improve precision, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing execution condition parameters into distinct, modular components such as measurement objects, reporting configurations, and threshold parameters. Each segment can be independently configured and managed, allowing precise control over measurement criteria while reducing overall complexity through structured organization. The network can activate or deactivate specific parameter segments based on service requirements.
Data Source
AI summary
A radio base station includes: a control unit that controls an execution of a procedure for an addition/change of a secondary cell; a reception unit that receives a first message relating to the secondary cell from another base station; and a transmission unit that transmits a second message including update information of an execution condition of the procedure for the addition/change to another base station when receiving the first message.