Concurrent Link Power Control for Wireless Interference Balancing

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing power control for concurrent transmissions, particularly in heterogeneous networks with varying transmit power levels and interference scenarios, which can impact signal quality and network performance.

Innovation Solution

Implementing power control mechanisms that determine and manage multiple transmit powers for concurrent links based on interference and signal quality, ensuring compliance with threshold maximum transmit powers to minimize interference and optimize network performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple concurrent transmissions are performed with different transmit powers, then network performance and signal quality are improved, but interference between links increases

Engineering Contradiction:
Improvesignal qualityVSAvoidinterference
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting transmit power levels for different concurrent transmissions based on interference conditions and signal quality requirements. The system determines multiple transmit powers corresponding to different links and selects appropriate power levels to balance signal quality improvement with interference control, resolving the contradiction between reliability and harmful factors.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If transmit power is increased to improve signal quality, then communication reliability improves, but power consumption increases

Engineering Contradiction:
Improvesignal qualityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts transmit power parameters based on actual communication conditions, channel state information, and interference levels. By optimizing power levels for each concurrent transmission rather than using maximum power continuously, the system improves signal quality when needed while minimizing overall power consumption.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamic power control where transmit power is adjusted in real-time based on feedback about signal quality and interference conditions. This dynamic adaptation allows the system to use higher power only when necessary for reliable communication while reducing power consumption during periods of good channel conditions or low interference.

Inventive Principle:
Principle #15Dynamics

3Object-generated harmful factors

If power control is implemented for multiple concurrent links, then interference is reduced, but system complexity increases

Engineering Contradiction:
ImproveinterferenceVSAvoidpower control mechanism
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent employs feedback mechanisms where the system monitors signal quality and interference levels for concurrent transmissions. Based on this feedback, the power control mechanism automatically adjusts transmit powers to minimize interference while maintaining communication reliability, managing system complexity through intelligent control rather than simplified hardware.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3701748B1Power control for concurrent transmissions
Publication Date: 2025.12.31 QUALCOMM INC
  • EP3701748B1 patent drawingFigure 1
  • EP3701748B1 patent drawingFigure 2
  • EP3701748B1 patent drawingFigure 3A

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may determine, when in communication with a plurality of other wireless nodes via a plurality of links of a network, a plurality of transmit powers for the plurality of links, wherein the plurality of transmit powers are selected to control inter-link interference or to satisfy a maximum transmit power criterion. The wireless node may transmit, using the plurality of transmit powers for the plurality of links, information, to the plurality of other wireless nodes, concurrently, based at least in part on determining the plurality of transmit powers for the plurality of links. Numerous other aspects are provided.