Cellular Transmit Power Scaling Based on Excess SNR

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Solution Overview

Problem

The increasing power consumption in mobile communication networks due to the rise in mobile communication network usage poses a challenge in maintaining quality of service without incurring excessive energy costs.

Innovation Solution

The solution involves determining the excess signal-to-noise ratio (SNR) in cellular networks, which corresponds to excess transmitter power. By dynamically scaling the transmit power to the minimum needed to maintain the achieved bit rate, the power consumption of the network can be reduced.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If transmit power is increased to maintain quality of service, then reliability is improved, but use of energy worsens

Engineering Contradiction:

Improvequality of serviceVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic transmit power scaling that adjusts power levels in real-time based on current channel conditions and achieved bit rates. The system continuously monitors link quality metrics and scales transmit power dynamically to match actual network needs, transitioning from static high power operation to adaptive power control that maintains quality of service only when necessary.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the transmit power parameter based on measured channel conditions and achieved bit rates. By calculating excess SNR and corresponding excess power, the system adjusts the transmit power parameter to optimal levels that maintain service quality while eliminating wasteful power consumption, transforming the power parameter from fixed to condition-dependent.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If transmit power is reduced to decrease energy consumption, then use of energy is improved, but reliability worsens

Engineering Contradiction:

Improvepower consumptionVSAvoidquality of service

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent employs feedback mechanisms that continuously monitor achieved bit rates, channel quality indicators, and link performance metrics. This feedback loop enables the system to determine when transmit power reductions will not compromise quality of service, allowing safe power scaling while maintaining reliable communication through real-time performance verification.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations to determine the minimum transmit power required to maintain achieved bit rates before actually scaling power levels. By预先 calculating excess SNR and corresponding power reductions, the system ensures that quality of service thresholds are not violated before power reduction is implemented, preventing reliability degradation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250055488A1Cellular network that scales transmit power based on link capacity and measured snr

Publication Date: 2025.02.13 TALKINGHEADS WIRELESS INC

AI summary

Described are concepts, systems and techniques for detecting whether an antenna is connected to a transmit system to thereby protect a power amplifier lineup from damage.