Satellite Downlink Beam Power Allocation for Variable User Load
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Solution Overview
Problem
Existing 5G wireless communication systems face challenges in efficiently managing dynamic power allocation for non-terrestrial radio networks to meet varying quality-of-service requirements of different classes, such as URLLC, eMBB, and mMTC, particularly in managing load variations and ensuring reliable, low-latency communications for mobile devices.
Innovation Solution
A method for determining and adjusting transmission power of non-terrestrial beams based on beam power allocation criteria, including power increase or decrease criteria, to optimize power distribution among served user equipment, and allocating remaining power to other beams uniformly or differently based on total transmission capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic power allocation is implemented based on served user equipment numbers, then power management efficiency and QoS meeting capability are improved, but system complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission power levels based on the number of served user equipment and predefined thresholds. The system changes power allocation parameters (power increase/c decrease steps) according to real-time network conditions, transforming static power management into a dynamic parameter-adjustment mechanism that adapts to varying QoS requirements without requiring complex reconfiguration of the entire system
Solution Approach 2:
The non-terrestrial radio network node autonomously performs power allocation decisions by self-evaluating the number of served user equipment against predefined thresholds. The system serves itself by automatically determining when to increase or decrease power based on internal measurements, eliminating the need for external manual control or complex centralized management, thus reducing operational complexity while maintaining adaptability
2Quantity of substance
If transmission power is increased to serve more user equipment, then coverage and connectivity are improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamics by making transmission power adjustable rather than fixed. The system dynamically increases power when the number of served user equipment exceeds thresholds and decreases power when thresholds are not met, creating a flexible power management mechanism that matches energy consumption to actual network load requirements, thereby reducing wasted energy while maintaining connectivity
Solution Approach 2:
The system changes the transmission power parameter based on real-time conditions. By establishing power increase steps and power decrease steps as adjustable parameters, the system optimizes energy consumption by only increasing power when necessary to serve additional user equipment, and by reducing power when the number of active users decreases, thus achieving efficient energy utilization
3Device complexity
If uniform power allocation is used for all beams, then system simplicity is maintained, but power allocation efficiency deteriorates
Solution Approach 1:
The patent applies local quality by treating different beams differently based on their specific conditions. Instead of uniform power allocation, the system determines individual power levels for each beam based on the number of user equipment served by that specific beam, creating localized power optimization that improves overall efficiency while maintaining manageable system complexity through standardized evaluation criteria
Data Source
AI summary
A non-terrestrial radio network node may determine a count, or a number, of user equipment being served by, or that are connected to, the node via at least one non-terrestrial beam. The node may analyze the count, or number, with respect to at least one power increase criterion or at least one power decrease criterion. With respect to a baseline/default power allocation, the node may increase or decrease transmission power allocated to a particular non-terrestrial beam if the beam is determined to serve a number of user equipment that exceeds a configured power increase criterion or that is less than a configured power decrease criterion, respectively. The node may increase or decrease transmission power allocated to a non-terrestrial beam according to a configured power change step value. Based on counts of user equipment served by different beams, the node may determine to allocate different transmission power amounts to different beams.