Dual-Connectivity RRC Remapping for Independent Scheduling
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Solution Overview
Problem
Current wireless communication systems face limitations in communication flexibility and efficiency, particularly in dual-connectivity scenarios where multiple connections are used, as they often rely on a single scheduler for multiple cells, which can lead to suboptimal radio resource utilization.
Innovation Solution
The implementation of a method for dual-connectivity operation that involves receiving and sending Radio Resource Control (RRC) messages to remap data radio bearers between a master cell group and a secondary cell group, allowing for independent scheduling and efficient radio resource management between different eNBs, thereby enhancing communication flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single scheduler is used for multiple cells in dual-connectivity scenarios, then device complexity is reduced, but radio resource utilization efficiency deteriorates
Solution Approach 1:
The patent divides the scheduling function into separate entities for each cell group (MCG and SCG), allowing independent scheduling decisions for each cell. This segmentation enables optimized resource allocation for each cell while maintaining overall system efficiency, resolving the contradiction between simplified scheduling architecture and efficient resource utilization.
2Productivity
If independent schedulers are implemented for each cell group, then radio resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The scheduling functionality is segmented into separate schedulers for MCG and SCG cell groups, enabling independent optimization of radio resources for each group. This segmentation achieves improved resource utilization efficiency while the modular architecture manages complexity through clear functional separation.
Solution Approach 2:
The patent implements a universal RRC message structure that can handle multiple cell groups and scheduling scenarios through a single standardized interface. This multi-functionality approach allows independent schedulers to operate efficiently while reducing overall system complexity through standardized communication protocols.
3Speed
If carrier aggregation is used to increase user throughput, then communication speed is improved, but system flexibility deteriorates
Solution Approach 1:
The patent introduces dynamic RRC reconfiguration capabilities that allow the network to adaptively adjust carrier aggregation configurations based on real-time conditions. This enables the system to optimize throughput when conditions are favorable while maintaining flexibility to modify or reconfigure connections when adaptability is needed, resolving the contradiction between speed and flexibility.
Data Source
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AI summary
A method for receiving a radio resource control (RRC) message by a user equipment (UE) is described. The method includes receiving, from a first evolved Node B (eNB), an RRC connection reconfiguration (RRCConnectionReconfiguration) message including data radio bearer (DRB) configuration parameters for remapping a DRB that is established on a master cell group (MCG) to a secondary cell group (SCG).