Carrier Aggregation Group Configuration for Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring and managing carrier aggregation groups across multiple carriers, particularly in maintaining seamless communication and optimizing cell planning for enhanced Quality of Experience (QoE) in multi-component carrier environments.
Innovation Solution
The method involves configuring at least two carrier aggregation groups (CAGs) based on RRC configuration signals, where each CAG includes serving cells with different carriers, with a primary serving cell (PCell) for each CAG configured independently, and a macro cell PCell acting as a master primary serving cell (M-PCell) for data transmission, allowing for dual connectivity between macro and small cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple carrier aggregation groups are configured with independent primary serving cells, then data transmission efficiency is improved and throughput is boosted, but system complexity and cell planning difficulty increase
Solution Approach 1:
The system segments the carrier aggregation management into multiple independent CAGs, each with its own primary serving cell configuration. This allows parallel management of different carrier groups, improving data transmission efficiency while maintaining organized system structure through modular segmentation.
Solution Approach 2:
The patent introduces a new dimension of organization by creating multiple CAG layers with independent primary serving cells. This multi-dimensional carrier aggregation structure enables simultaneous data transmission across different carrier groups, boosting throughput while managing complexity through hierarchical organization.
2Productivity
If multiple carrier aggregation groups are configured with independent primary serving cells, then data throughput is boosted, but cell planning and configuration difficulty increase
Solution Approach 1:
Cell planning is segmented into multiple independent CAG configurations, each manageable as a separate unit. This modular approach enables systematic cell planning while achieving high data throughput through parallel carrier aggregation groups with independent primary serving cells.
3Productivity
If macro cell PCell acts as master primary serving cell for data transmission, then data transmission efficiency is improved, but load on macro-cells increases
Solution Approach 1:
The patent merges the roles of macro cell PCell as M-PCell across multiple CAGs, creating a coordinated master-primary serving cell structure. This merging approach improves data transmission efficiency through unified control while enabling load distribution across the aggregated carrier groups.
4Productivity
If carrier aggregation is used to increase bandwidth capacity, then system capacity is improved, but control signal management complexity increases
Solution Approach 1:
Control signal management is segmented by organizing carriers into distinct CAGs with independent primary serving cells. This segmentation simplifies control signal management within each CAG while maintaining high system capacity through the aggregation of multiple carriers across different CAGs.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method for and apparatus for supporting a carrier aggregation group in a wireless communication system supporting multiple carriers is provided. A wireless device receives a RRC configuration signal including one or more serving cells from a macro cell and a RRC configuration signal including one or more serving cells from a small cell, and configures at least two carrier aggregation group (CAG)s based on the RRC configuration signal each. And, this invention includes that cell planning for multi-CCs is provided more accurately and efficiently.