Wireless Node Uplink Power Control for Multi-Panel Reference Sets
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Solution Overview
Problem
Existing uplink power control methods in wireless communication systems, particularly in multi-panel scenarios, fail to consider the relationship and limitations between transmission powers of multiple panels, leading to inefficiencies and potential power waste.
Innovation Solution
A method and apparatus for determining uplink transmission power by considering multiple reference signal resource sets and their associated thresholds, allowing for power sharing and optimization between panels, thereby optimizing power usage and reducing hardware complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing uplink power control methods are used in multi-panel scenarios, then the terminal can transmit simultaneously on two transmitting beams to obtain spatial diversity gain, but the relationship and limitations of transmission power between multiple panels are not considered, leading to power waste and inefficiency
Solution Approach 1:
The patent segments the power control parameters by introducing separate reference signal resource sets (first and second reference signal resource sets) corresponding to different panels. Each panel's transmission power is controlled independently based on its own reference signal resources, allowing precise power management for each panel while maintaining overall power efficiency.
Solution Approach 2:
The patent changes the power control parameters by introducing panel-specific reference signal resource sets and associated thresholds. The terminal determines transmission power based on measurements of panel-specific reference signals (CSI-RS or SSB) and compares them with panel-specific thresholds, enabling dynamic and efficient power adjustment for each panel.
2Productivity
If existing uplink power control methods are used in multi-panel scenarios, then the terminal can use two Panels to transmit simultaneously, but the determination of maximum transmission power does not consider the relationship between Panels, leading to increased hardware complexity
Solution Approach 1:
The patent creates a universal power control framework that works for both single-panel and multi-panel scenarios. The same power control method using reference signal resource sets and thresholds can be applied regardless of the number of panels, reducing the need for separate hardware control mechanisms for different panel configurations.
Solution Approach 2:
The patent introduces dynamic power control where the terminal continuously measures reference signals from different panels and adjusts transmission power in real-time based on measured quality and threshold comparisons. This dynamic adjustment eliminates the need for complex static power allocation hardware while maintaining optimal performance.
Data Source
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AI summary
The present application discloses a method and apparatus in a node for wireless communication. A node first receives a first signaling, wherein the first signaling is used for determining a first reference signal resource set; and then the node determines a first power value, and transmits a first signal when the first power value is greater than 0. The transmission power of the first signal is the first power value, and a spatial transmission parameter of the first signal is related to the first reference signal resource set; the first power value is not greater than a target power value, the target power value is not greater than a first threshold, and the first threshold is associated with the first reference signal resource set; and whether the first signaling is used for determining a second reference signal resource set is used for determining whether the target power value is related to a threshold other than the first threshold. The present application improves the manner of determining the upper limit of the transmission power when a terminal is configured with a plurality of reference signal resource sets, so as to avoid power waste, thereby improving the system performance.