Conditional PSCell Reconfiguration for Continuous SCG Change
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing NR systems, after a secondary cell group (SCG) change is performed, all candidate SCG configurations are released, making continuous conditional primary secondary cell group (PSCell) addition and change (CPAC) operations impossible without additional radio resource control (RRC) configuration.
Innovation Solution
A method for maintaining conditional reconfiguration information for PSCell addition and change, allowing continuous CPAC operations by configuring candidate SCGs without requiring additional RRC signaling, enabling dynamic CPAC tailored to channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If candidate SCG configurations are released after SCG change, then system simplicity is maintained, but continuous CPAC operation becomes impossible
Solution Approach 1:
The patent applies preliminary action by pre-configuring candidate SCG configurations with execution conditions before SCG change occurs. The conditional reconfiguration information is prepared in advance and maintained after SCG change, allowing continuous CPAC operations without requiring additional RRC configuration. This resolves the contradiction by maintaining configuration availability (improving adaptability) while avoiding complex re-configuration procedures (preserving simplicity).
2Adaptability or versatility
If additional RRC configuration is performed after SCG change, then continuous CPAC operation is enabled, but signaling overhead increases
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously evaluate execution conditions and perform CPAC operations using pre-configured candidate SCG information. The conditional reconfiguration information is automatically maintained and activated without requiring additional RRC signaling from the network side. This resolves the contradiction by enabling continuous CPAC operation (improving adaptability) while eliminating unnecessary RRC signaling (reducing signaling overhead).
3Adaptability or versatility
If candidate SCG configurations are maintained after SCG change, then dynamic CPAC tailored to channel conditions is enabled, but configuration management complexity increases
Solution Approach 1:
The patent applies dynamics by making the configuration management system adaptive to changing channel conditions. The conditional reconfiguration information includes execution conditions that are dynamically evaluated based on current channel status. The system automatically activates appropriate candidate SCG configurations without manual intervention, enabling dynamic CPAC while keeping configuration management simple through automated condition evaluation. This resolves the contradiction by enabling dynamic adaptability (improving adaptability) while avoiding complex manual configuration management (preserving simplicity).
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. An embodiment of the disclosure may provide a method and apparatus for performing conditional PSCell addition and change continuously in a next-generation mobile communication system.