PUCCH Repetition Power Control Across Multiple Component Carriers

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing transmit power control for physical uplink control channel (PUCCH) repetitions across multiple component carriers, which can lead to interference and suboptimal performance.

Innovation Solution

Implementing a method for configuring transmit power control (TPC) for PUCCH repetitions across multiple component carriers, where downlink control information (DCI) provides separate power configurations for each carrier, enabling the user equipment (UE) or network node to transmit PUCCH communications accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If transmit power control is managed across multiple component carriers for PUCCH repetitions, then communication efficiency and performance are improved, but system complexity and power management overhead increase

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidpower management complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the power control management by introducing separate TPC commands for each component carrier (CC1 and CC2). The network transmits independent TPC commands to control PUCCH power on each CC, allowing granular power management. This segmentation resolves the contradiction by enabling efficient multi-carrier power control while maintaining manageable complexity through structured, carrier-specific control signaling.

Inventive Principle:

Principle #1Segmentation

2Object-affected harmful factors

If separate power configurations are provided for each component carrier, then interference is reduced and performance is optimized, but signaling overhead and configuration complexity increase

Engineering Contradiction:

ImproveinterferenceVSAvoidsignaling overhead

Core Design Contradiction:

Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The patent applies local quality by providing differentiated power control configurations for each component carrier based on local conditions. Each CC receives tailored TPC commands that reflect its specific interference environment and channel conditions. This allows optimal power allocation per carrier, reducing interference locally while the overall signaling overhead remains manageable through efficient DCI formatting.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12574868B2Transmit power control configuration for physical uplink control channel repetition across multiple component carriers

Publication Date: 2026.03.10 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) scheduling transmission of a first one or more physical uplink control channel (PUCCH) communications on a first component carrier and a second one or more PUCCH communications on a second component carrier, wherein the DCI includes information identifying a first transmit power configuration for the first one or more PUCCH communications and a second transmit power configuration for the second one or more PUCCH communications. The UE may transmit the first one or more PUCCH communications in accordance with the first transmit power configuration and the second one or more PUCCH communications in accordance with the second transmit power configuration. Numerous other aspects are described.