Dynamic Carrier Activation in Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multiple carriers for enhanced bandwidth and quality of service, particularly in activating and deactivating carriers dynamically to optimize network performance and reduce signaling overhead.
Innovation Solution
The implementation of methods for multiple carrier activation/deactivation, discontinuous transmission (DTX) and reception (DRX) activation/deactivation, and acknowledgement/negative acknowledgement feedback, using high-speed shared control channel (HS-SCCH) orders and explicit signaling to manage supplementary carriers effectively, allowing for simultaneous activation/deactivation of multiple carriers and optimizing carrier configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple carriers are activated simultaneously to increase bandwidth and throughput, then network performance and quality of service are improved, but control signaling overhead and system complexity increase
Solution Approach 1:
The patent segments the carrier activation process by introducing a primary carrier and multiple secondary carriers. The primary carrier remains continuously active while secondary carriers are dynamically activated/deactivated based on traffic demands. This segmentation allows the system to achieve high bandwidth utilization when needed while reducing control signaling overhead during low-traffic periods, as the base station can selectively activate only the necessary secondary carriers rather than maintaining all carriers continuously active.
2Adaptability or versatility
If multiple carriers are dynamically activated and deactivated to optimize network performance, then adaptability and quality of service are improved, but the complexity of carrier management and scheduling increases
Solution Approach 1:
The patent implements dynamic carrier management where secondary carriers can be activated or deactivated based on real-time traffic conditions and channel quality. The base station receives channel quality indicators from user equipment and dynamically adjusts the number of active carriers accordingly. This dynamic approach provides high adaptability to changing network conditions while the patent manages complexity through standardized procedures for carrier activation/deactivation and unified scheduling across all active carriers.
Data Source
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AI summary
Methods and apparatus for multiple carrier utilization in wireless communications are disclosed. These methods include multiple carrier activation/deactivation, multiple carrier discontinuous transmission (DTX) and discontinuous reception (DRX) activation/deactivation and operations, and multiple carrier acknowledgment/negative acknowledgement feedback. The methods include provisions for joint multiple carrier activation and deactivation and joint DTX and DRX activation and deactivation of multiple carriers.