Beam-State Uplink Power Control for High-Frequency Coverage
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Solution Overview
Problem
The challenge in New Radio (NR) technology is the rapid decay of wireless signals at high frequencies, leading to limited coverage, and the need for a flexible beam update mechanism to efficiently manage power control parameters in uplink transmissions.
Innovation Solution
A method and device for determining power control parameters based on beam states, including Quasi Co-Location (QCL) state, Transmission Configuration Indication (TCI) state, spatial relation information, reference signal information, and precoding information, to optimize uplink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high frequency bands are used for transmission, then frequency domain resources are abundant, but wireless signal decays rapidly causing small coverage
Solution Approach 1:
The patent segments the transmission space into multiple beams, each targeting specific spatial directions. By dividing the coverage area into directional sectors, the system can concentrate energy in each beam to extend effective coverage distance while maintaining high frequency band usage for abundant frequency resources
Solution Approach 2:
The patent applies different transmission characteristics to different spatial locations through beamforming. Each beam is optimized with specific power control parameters tailored to its target direction and distance, allowing localized quality adjustment to compensate for rapid signal decay in high frequency bands while preserving frequency domain resource abundance
2Area of stationary object
If beams are used to transmit signals, then energy is concentrated in a relatively small spatial range improving coverage, but beam pair varies with time and location requiring flexible beam update mechanism
Solution Approach 1:
The patent implements dynamic power control parameters that automatically adjust according to beam state changes. When beam pairs vary with time and location, the system dynamically updates power control configurations to maintain optimal coverage, making the beam management mechanism flexible and adaptive to changing transmission conditions
Solution Approach 2:
The patent establishes a feedback mechanism where power control parameters are determined based on current beam states. The system monitors beam pair variations and uses this information to adjust power control settings, creating a closed-loop control system that maintains coverage effectiveness despite beam pair changes over time and location
3Adaptability or versatility
If flexible beam update mechanism is implemented, then beam adaptability improves, but power control parameter management complexity increases
Solution Approach 1:
The patent creates a universal power control parameter determination mechanism that handles multiple beam states and transmission scenarios through a unified framework. This multi-functional approach allows the system to manage diverse beam update requirements while using a single standardized power control management structure, reducing overall complexity despite increased flexibility needs
Data Source
AI summary
Provided are a method and device for determining a power control parameter, and storage medium. The method includes: determining a beam state of an uplink transmission; and determining, based on the beam state, the power control parameter of the uplink transmission, where the beam state at least includes one of the following: a QCL state, a TCL state, spatial relation information, reference signal information, spatial filter information or precoding information.