Wireless Node Power Allocation Across Panels Under Terminal Limits
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Solution Overview
Problem
The existing uplink power control mechanisms in 5G NR systems, particularly in multi-panel scenarios, fail to consider the relationship and limitations between the sending powers of multiple panels, leading to inefficiencies and potential resource waste.
Innovation Solution
A method for determining and managing the power values of multiple transport blocks or sub-signals based on configured grants, ensuring the total power does not exceed the terminal's transmission limit, and optimizing power control loops for each panel to avoid conflicts and resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple panels are used for simultaneous transmission of multiple CWs to improve spatial diversity and transmission efficiency, then transmission efficiency and spatial diversity gain are improved, but power control complexity and resource management difficulty increase
Solution Approach 1:
The patent segments the power control mechanism by introducing separate power control loops for different panels and CWs. Each panel/CW combination has its own power control parameters (P0, Alpha, pathloss reference signals), allowing independent power management while maintaining overall system coordination. This segmentation resolves the contradiction by making the complex multi-panel power control manageable through modular, independent control units.
Solution Approach 2:
The patent implements dynamic power adjustment mechanisms where power values for different panels and CWs can be independently optimized based on channel conditions, panel capabilities, and interference levels. The system dynamically selects which CWs to transmit on which panels and adjusts their respective power levels, transforming the static power control into a flexible, adaptive system that handles multi-panel complexity efficiently.
2Ease of manufacture
If existing uplink power control mechanisms are applied to multi-panel scenarios without modification, then implementation simplicity is maintained, but power allocation inefficiency and resource waste occur
Solution Approach 1:
The patent applies local quality by allowing different power control parameters and strategies for different panels and CWs based on their specific characteristics, channel conditions, and interference environments. Each panel can have customized P0 values, Alpha values, and pathloss reference signal associations, enabling optimized power allocation that matches local conditions rather than applying a one-size-fits-all approach, thus eliminating power waste while maintaining implementation feasibility.
3Adaptability or versatility
If power limits are not considered in multi-panel transmission, then transmission flexibility is improved, but interference to other users increases and power limits are violated
Solution Approach 1:
The patent implements feedback mechanisms where the system monitors total transmit power across all panels and CWs, compares it against configured power limits, and adjusts individual panel/CW power levels accordingly. This feedback loop ensures that while each panel can operate flexibly with its own power control parameters, the aggregate power remains within acceptable limits, preventing excessive interference to other users while maintaining transmission flexibility.
Data Source
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AI summary
Disclosed in the present application are a method used for nodes of wireless communication and an apparatus. The method comprises: a node first receiving a first signaling, the first signaling being used for determining a first time-frequency resource set; and then determining a first power value and a second power value, and sending in the first time-frequency resource set at least the former among a first sub-signal or a second sub-signal, the first sub-signal and the second sub-signal respectively corresponding to two transmission blocks. The first sub-signal uses the first power value, and the second power value is associated with the second sub-signal. The first signaling is used for determining a first reference signal resource and a second reference signal resource, the first reference signal resource and the second reference signal resource are respectively used for determining the first power value and the second power value, and the sum of the first power value and the second power value is used for determining whether the second sub-signal is sent. The present application improves the determination mode of sending power of a terminal, thereby improving the system performance.