Uplink PUCCH Power Control for Reliable Multi-Beam Repetitions
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Solution Overview
Problem
Current uplink power control technologies for PUCCH transmissions in FR1 and FR2 lack flexibility and efficiency, particularly in managing different power control parameters for multiple repetitions and beam hopping scenarios, and fail to effectively apply TPC commands for enhanced reliability.
Innovation Solution
Implementing flexible power control mechanisms by configuring multiple sets of power control parameters and closed-loop processes for PUCCH repetitions, allowing different power control settings for each beam and repetition, and using RRC, MAC CE, and DCI signaling to manage these settings dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sets of power control parameters are configured for different beams and repetitions, then PUCCH reliability and coverage are enhanced, but device complexity increases
Solution Approach 1:
The patent divides the power control parameter management into separate sets associated with different spatial relations and beams. Each beam or repetition can have its own dedicated power control parameters (p0-Set, pathlossReferenceRSs, closedLoopIndices), allowing independent optimization for each transmission path without interfering with others.
Solution Approach 2:
The patent implements dynamic selection and activation of different power control parameter sets based on the current beam and repetition configuration. The system can switch between different parameter sets dynamically depending on which beam is active and which repetitions need to be transmitted, providing flexibility without requiring all parameters to be simultaneously active.
2Productivity
If different power control parameters are applied to each beam and repetition, then communication efficiency is improved, but ease of operation deteriorates
Solution Approach 1:
The patent creates a universal framework where a single power control configuration structure can handle multiple beams, repetitions, and frequency ranges (FR1 and FR2) through standardized parameter sets. The same basic mechanism (p0-Set, pathlossReferenceRSs, closedLoopIndices) applies across different scenarios, reducing the need for separate specialized configurations for each case.
Solution Approach 2:
The patent enables flexible parameter changes by allowing different power control parameter sets to be associated with different spatial relations and beams. The system can change parameters such as p0 values, pathloss reference signals, and closed-loop indices depending on the specific beam and repetition being used, optimizing performance for each configuration.
3Reliability
If spatial relation configuration is used for power control, then uplink power control effectiveness is improved, but device complexity increases due to additional configuration requirements
Solution Approach 1:
The patent merges the spatial relation configuration with the power control parameter configuration. The spatial relation information (which beam or spatial filter is used) is combined with the power control parameters (p0-Set, pathlossReferenceRSs, closedLoopIndices) into a unified configuration structure, allowing both functions to be managed together rather than separately.
Solution Approach 2:
The patent introduces spatial relation configuration as an intermediary layer that links the physical beam/direction information with the power control parameters. The spatial relation configuration acts as a mediator that associates specific power control parameter sets with specific beams or spatial filters, enabling indirect but effective power control based on spatial characteristics.
Data Source
AI summary
The present application relates to devices and components including apparatus, systems, and methods for uplink power control for channels having repetitions.