Primary Carrier Management in Multi-Carrier Wireless Systems
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Solution Overview
Problem
In wireless communication systems, managing the dynamic change of primary and secondary carriers to optimize data transmission efficiency is challenging, particularly in multi-carrier systems where load distribution and channel changes require efficient resource allocation and state transitions.
Innovation Solution
A method and device for managing primary carriers in a multi-carrier system, involving a primary carrier change command message (AAI_CM_CMD) that includes a target primary carrier index, next state indication, action time, and ranging indicator, allowing seamless transition of primary carriers between active and secondary states, with optional scanning and notification mechanisms to ensure efficient data and control information processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the primary carrier is changed dynamically to optimize data transmission, then transmission efficiency is improved, but the complexity of carrier management increases
Solution Approach 1:
The patent implements dynamic primary carrier change mechanisms that allow the system to adapt carrier configurations in real-time based on load distribution and channel conditions. The base station can dynamically switch the terminal's primary carrier between active and secondary carriers, enabling flexible adaptation to changing network conditions while maintaining efficient data transmission.
Solution Approach 2:
The patent segments carrier management into distinct functional components: active carriers, secondary carriers, and target carriers. This segmentation allows independent management of each carrier type with specific state transitions, reducing overall management complexity by breaking down the complex carrier aggregation system into manageable segments with defined roles and transition rules.
2Area of stationary object
If multiple carriers are managed simultaneously, then data transmission band is extended, but resource allocation complexity increases
Solution Approach 1:
The patent creates a universal carrier management framework where the base station controls multiple carriers (active and secondary) that can serve different functions. The same management mechanisms and messaging protocols are applied universally across all carrier types, allowing the system to extend the data transmission band while maintaining consistent resource allocation procedures through the AAI_CM_CMD message structure.
3Adaptability or versatility
If carrier state transitions are implemented frequently, then adaptability to channel changes is improved, but signaling overhead increases
Solution Approach 1:
The patent implements preliminary action by defining the AAI_CM_CMD message structure in advance with all necessary fields (carrier index, action code, timing information) encoded. This preliminary definition of the signaling format allows efficient carrier state transitions without requiring complex real-time negotiation, reducing signaling overhead while maintaining high adaptability to channel changes.
Data Source
AI summary
A method in which a terminal that supports a multi-carrier manages a primary carrier, including: receiving a primary carrier change command from a base station; and changing the primary carrier from a serving primary carrier to a target primary carrier.