Beam-Specific Power Control for FR2 Wireless Systems
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Solution Overview
Problem
Current power control mechanisms for high-frequency ranges in fifth-generation mobile communication systems, particularly Frequency Range 2 (FR2), fail to effectively utilize beam characteristics for flexible power management while meeting electromagnetic radiation testing requirements.
Innovation Solution
A power control method and apparatus that determine and transmit maximum transmit power-related information for each beam or beam group to a communication node, allowing for flexible power usage by adjusting power classes based on required and actual maximum transmit power, and receiving and processing this information to optimize transmission resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam-based transmission is used in FR2 to improve coverage and gather energy, then communication effectiveness is improved, but power limitation becomes more severe due to electromagnetic radiation constraints
Solution Approach 1:
The patent segments the power control mechanism by introducing beam-specific maximum transmit power parameters (PCMAX,beam) for different beam directions. This allows the system to divide the overall power limitation into direction-specific constraints, enabling flexible power allocation across multiple beams while complying with electromagnetic radiation limits in each direction.
Solution Approach 2:
The patent implements dynamic power adjustment by allowing the terminal to determine and report beam-specific power parameters to the network side. The system dynamically adapts power levels based on beam direction, channel conditions, and electromagnetic radiation constraints, transitioning from static power control to dynamic beam-specific power management.
2Adaptability or versatility
If traditional power control mechanisms are used in FR2, then electromagnetic radiation compliance is maintained, but beam characteristics cannot be utilized for flexible power management
Solution Approach 1:
The patent applies local quality by introducing direction-specific power parameters (PCMAX,beam) for different beam directions. Each beam direction can have its own maximum power limit based on local electromagnetic radiation constraints and channel conditions, allowing the system to optimize power allocation locally for each beam while maintaining overall compliance.
Solution Approach 2:
The patent changes the power control parameters from a single aggregate PCMAX value to multiple beam-specific PCMAX,beam parameters. This parameter transformation enables the system to capture and utilize beam characteristics, allowing flexible power management that adapts to the directional nature of beam-based FR2 transmission.
3Adaptability or versatility
If beam-specific power parameters are determined and transmitted for each beam, then power management flexibility is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent makes the existing power control framework universal by extending it to support both traditional aggregate power control and new beam-specific power control. The network side can configure beam-specific parameters when needed, while falling back to traditional mechanisms when beam differentiation is not required, making the system multi-functional without forcing complexity in all scenarios.
Solution Approach 2:
The terminal device performs self-service by autonomously determining its beam-specific maximum transmit power parameters based on configured information and channel conditions. The terminal then reports these parameters to the network side, reducing the need for complex network-side calculations and simplifying the overall system complexity while maintaining flexibility.
Data Source
AI summary
Provided are a power control method and apparatus, and an electronic device, where the method includes: determining at least one piece of maximum transmit power-related information; and sending the at least one piece of maximum transmit power-related information to a first communication node, where each of the at least one piece of maximum transmit power-related information is related to a beam or a beam group.