NTN Power Control via Dynamic Parameter Sets
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Solution Overview
Problem
In Non-Terrestrial Network (NTN) systems, the constant movement or switching of satellite beams leads to fluctuating link quality for uplink signals, making it difficult for terminal devices to adjust transmit power flexibly, resulting in poor power control flexibility and affecting communication quality and reliability.
Innovation Solution
A power control method and apparatus that involve a service node transmitting configuration information indicating N power parameter sets to a terminal device, allowing the terminal device to determine and adjust its transmit power accordingly, thereby adapting to beam movement or switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmit power is increased to guarantee transmission quality, then communication reliability is improved, but power consumption increases unnecessarily
Solution Approach 1:
The patent implements dynamic power control by allowing the terminal device to adjust transmit power based on beam movement status. The network device configures multiple power parameter sets corresponding to different beam states, and the terminal dynamically selects appropriate power levels according to current beam conditions, transforming static power control into a dynamic adaptive system that matches actual transmission needs.
Solution Approach 2:
The patent changes power control parameters by configuring multiple power parameter sets with different power values. The network device provides power configuration information including at least two different power parameters, enabling the terminal to switch between different power levels based on beam movement status, thus adapting transmission power to actual channel conditions without unnecessary power consumption.
2Use of energy by moving object
If the transmit power is decreased to save energy, then power consumption is reduced, but transmission quality cannot be guaranteed
Solution Approach 1:
The system dynamically adjusts power levels based on real-time beam movement status. When beam movement is detected, the terminal increases power to maintain quality; when beam is stable, it reduces power to save energy. This dynamic adaptation ensures transmission quality is only increased when necessary, avoiding unnecessary power consumption during stable periods.
Solution Approach 2:
The patent uses multiple configurable power parameters to enable flexible power adjustment. The network device configures at least two different power parameters, allowing the terminal to select appropriate power levels matching current transmission requirements, ensuring quality is maintained at minimum necessary power levels.
3Device complexity
If fixed power control is used to simplify system complexity, then device complexity is reduced, but power control flexibility is poor
Solution Approach 1:
The patent segments power control into multiple discrete parameter sets configured by the network device. Instead of a single fixed power level, the system divides power control into several predefined sets corresponding to different beam movement scenarios. This segmentation provides flexibility while keeping individual parameter sets simple, balancing complexity and adaptability.
Solution Approach 2:
The terminal device autonomously selects appropriate power parameter sets based on detected beam movement status without requiring complex centralized control for each adjustment. The terminal uses pre-configured power parameters to make independent power control decisions, reducing overall system complexity while maintaining flexibility through distributed intelligence.
Data Source
AI summary
A power control method and apparatus, and a service node, a terminal device and a storage medium are disclosed. The method may include: transmitting configuration information, which is used for indicating N power parameter sets, where N is a positive integer; and receiving uplink data, where the transmission power of the uplink data is determined by a terminal device according to the configuration information.