PUSCH Power Control for High-Priority UCI Multiplexing

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Solution Overview

Problem

Current mobile and wireless telecommunication systems, particularly in 5G networks, face challenges in ensuring the reliability of high-priority uplink control information (UCI) when it is multiplexed on low-priority physical uplink shared channels (PUSCH), as existing power control methods do not adequately guarantee the reliability and latency performance of high-priority UCI.

Innovation Solution

Configuring user equipment (UE) with dedicated subsets of power control parameters and corresponding values specifically for PUSCH power control when high-priority UCI is multiplexed on low-priority PUSCH, including open loop and closed-loop power control parameters, and dynamically indicating the application of these parameters via downlink control information (DCI).

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing power control methods are used for PUSCH transmission, then the power control operation remains simple, but the reliability and latency performance of high-priority UCI cannot be guaranteed

Engineering Contradiction:
Improvereliability of high-priority UCI transmissionVSAvoidpower control parameter configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The power control parameters are segmented into multiple subsets, where each subset is specifically configured for different priority levels of UCI. When high-priority UCI is multiplexed on low-priority PUSCH, a dedicated power control parameter subset is applied to ensure the high-priority transmission reliability, while other subsets handle normal priority transmissions. This segmentation allows the system to maintain simplicity for常规 transmissions while providing enhanced reliability for high-priority communications.

Inventive Principle:
Principle #1Segmentation

2Reliability

If dedicated power control parameters are configured for high-priority UCI on low-priority PUSCH, then the reliability of high-priority UCI is improved, but the power control operation complexity increases

Engineering Contradiction:
Improvereliability of high-priority UCIVSAvoidpower control operation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system is configured to automatically select and apply the appropriate power control parameter subset based on the priority level of the UCI being transmitted. When high-priority UCI is detected on a low-priority PUSCH, the corresponding dedicated power control parameters are automatically applied without requiring manual intervention or complex operational procedures. This self-service mechanism maintains ease of operation while ensuring high reliability for priority transmissions.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If multiple dedicated subsets of power control parameters are configured, then the adaptability to different priority scenarios is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different priority scenariosVSAvoidnumber of power control parameter subsets
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Different power control parameter subsets are configured with specific qualities and characteristics suited for different priority scenarios. Each subset contains parameters optimized for its intended use case, such as different power offsets, scaling factors, or adjustment coefficients. This local quality approach allows the system to have high adaptability to different priority scenarios while keeping each individual parameter subset relatively simple and manageable, rather than making one universal complex set.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11647465B2Power control enhancements for physical uplink shared channel (PUSCH) multiplexing uplink control information (UCI) of different priority
Publication Date: 2023.05.09 NOKIA TECHNOLOGIES OY
  • US11647465B2 patent drawing
  • US11647465B2 patent drawing
  • US11647465B2 patent drawing

AI summary

Systems, methods, apparatuses, and computer program products for the determination of PUSCH power control are provided. One method may include receiving, at a UE, at least one dedicated subset of power control parameters and corresponding values to be used for PUSCH power control in a case where a high priority UCI is multiplexed on a low priority PUSCH, and determining one subset from the at least one dedicated subset of power control parameters, or determining one subset from the at least one dedicated subset of power control parameters and determining at least one parameter from the determined subset. The method may also include applying, by the UE, the determined dedicated subset of power control parameters or the determined at least one power control parameter from the determined dedicated subset of power control parameters for determining the PUSCH transmission power when the high-priority UCI is multiplexed on the low-priority PUSCH.