Cross-Base Station Cell Coordination to Reduce Resource Wastage
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Solution Overview
Problem
Current communication systems lack effective means to activate or deactivate preconfigured cells or cell groups across network-side nodes, leading to reduced communication efficiency and resource wastage in dual-connectivity architectures.
Innovation Solution
A method for configuring cross-base station cells by determining and configuring the activation state and type of candidate cells or cell groups through communication between a master node (MN) and a secondary node (SN), using signaling protocols like RRC, MAC CE, DCI, and PDCP Control PDU to achieve consistency in activation states and types across nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If preconfigured cells or cell groups are provided for selection in dual-connectivity architecture, then network flexibility and adaptability are improved, but there is no effective means to activate or deactivate cells across nodes leading to resource wastage and reduced communication efficiency
Solution Approach 1:
The patent implements a feedback mechanism where the master node and secondary node exchange activation state information through RRC signaling. The master node determines the activation state of candidate cells based on network conditions and communicates this information to the terminal and secondary node, creating a closed-loop control system that dynamically adjusts cell activation to avoid resource wastage while maintaining network flexibility
Solution Approach 2:
The patent introduces dynamic activation and deactivation of cells based on real-time network conditions. The master node can dynamically determine which candidate cells to activate or deactivate by communicating with the secondary node, allowing the network to adapt its resource allocation dynamically rather than maintaining static preconfigured cell states, thus preventing resource wastage while preserving adaptability
2Adaptability or versatility
If multiple candidate cells are preconfigured for terminal selection, then communication adaptability is improved, but consistency in activation states across nodes deteriorates
Solution Approach 1:
The patent merges the cell activation control functions of the master node and secondary node by establishing a coordination mechanism through RRC signaling. The master node consolidates the decision-making authority for cell activation states and communicates unified decisions to both the terminal and secondary node, ensuring consistent activation states across all nodes while maintaining the adaptability benefits of multiple candidate cells
Solution Approach 2:
The patent introduces RRC signaling as an intermediary mechanism that mediates between the master node, secondary node, and terminal regarding cell activation states. The master node uses RRC signaling to convey activation decisions to other nodes, ensuring that all participants in the dual-connectivity architecture maintain consistent understanding of which cells are active, thereby resolving the consistency problem while preserving communication adaptability
Data Source
AI summary
A method for configuring a cross-base station cell is performed by a master node (MN). The method includes: determining at least one of an activation state or a type of a candidate cell, or at least one of an activation state or a type of a candidate cell group by communicating with a secondary node (SN) corresponding to the MN; and configuring at least one of the activation state or the type of the candidate cell for a terminal, or at least one of the activation state or the type of the candidate cell group for a terminal.