Independent Power Scaling for Multi-Carrier HSUPA Uplink
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Solution Overview
Problem
Existing wireless communication systems for High-Speed Uplink Packet Access (HSUPA) face challenges in independently controlling and scaling power across multiple carriers, leading to difficulties in regulating power among carriers and managing interference, which affects the quality of service.
Innovation Solution
Implementing independent closed-loop power control methods that allow for dynamic ranking and power allocation across multiple carriers based on signal quality and power properties, using sequential or parallel power scaling algorithms to ensure maximum combined power is not exceeded, and applying power scaling rules to manage power distribution effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If universal power control is applied to all carriers, then system simplicity is maintained, but independent power regulation among carriers and interference control capability deteriorates
Solution Approach 1:
The patent segments the universal power control system into independent carrier-level power control mechanisms. Each carrier is assigned its own power control loop that can independently adjust power levels based on channel conditions, allowing fine-grained power regulation and interference management while maintaining overall system coherence.
Solution Approach 2:
The invention implements local quality by enabling different power control characteristics for different carriers. Each carrier can have its power independently adjusted according to its specific channel conditions, signal quality, and interference requirements, rather than applying a uniform power control strategy across all carriers.
2Ease of operation
If non-independent multicarrier control is used, then control mechanism simplicity is maintained, but power allocation scaling capability and service quality deteriorate
Solution Approach 1:
The patent introduces dynamic power allocation mechanisms that allow the system to adapt power distribution in real-time based on changing channel conditions, traffic demands, and interference levels. The power control system dynamically adjusts carrier power levels rather than using static allocations, enabling flexible response to varying operational requirements.
Solution Approach 2:
The invention implements feedback-based power control where signal quality measurements and channel conditions are continuously monitored and fed back to the power control algorithm. This feedback mechanism enables the system to automatically adjust power allocations to optimize service quality and adapt to changing network conditions without manual intervention.
Data Source
AI summary
A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes automatically scaling at least one of the independent power controls in view of the determined power levels for the set of high speed packet access signals. The method also includes setting the minimum power offset of the data channel independently on each carrier.