Pulse Train Communications Apparatus Dynamic Rate Control

Solution Overview

Problem

Existing communication systems using pulse trains face challenges in maintaining communication quality and throughput due to environmental changes, leading to increased power consumption and potential communication failures, as they do not effectively manage transmission energy and rate.

Innovation Solution

A communications apparatus and method that measures the communication environment and adjusts the transmission rate and energy of pulse trains to maintain average transmission energy within predetermined limits, ensuring optimal communication quality and efficiency by dynamically controlling pulse intervals and amplitudes based on environmental conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If transmission power is increased to ensure communication quality in deteriorated environments, then communication reliability is improved, but power consumption increases and interference with other systems worsens

Engineering Contradiction:

Improvecommunication qualityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic transmission rate control that adjusts the pulse train transmission rate based on measured communication environment quality. When environment deteriorates, the system dynamically lowers the transmission rate to reduce power consumption and interference, while maintaining communication reliability through adaptive parameter adjustment rather than constant high-power transmission.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes transmission parameters (transmission rate and pulse interval) based on communication environment measurements. By measuring environment quality and adjusting the transmission rate accordingly, the system optimizes the balance between communication reliability, power consumption, and interference levels.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If transmission rate is increased to enhance throughput, then system productivity is improved, but communication quality deteriorates in challenging environments and power consumption increases

Engineering Contradiction:

ImprovethroughputVSAvoidcommunication quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic transmission rate control that adjusts the pulse train transmission rate based on measured communication environment quality. When environment deteriorates, the system dynamically lowers the transmission rate to reduce power consumption and interference, while maintaining communication reliability through adaptive parameter adjustment rather than constant high-power transmission.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes transmission parameters (transmission rate and pulse interval) based on communication environment measurements. By measuring environment quality and adjusting the transmission rate accordingly, the system optimizes the balance between communication reliability, power consumption, and interference levels.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If pulse width is narrowed to increase frequency band utilization, then spectrum efficiency is improved, but signal energy per frequency becomes very minute reducing communication reliability

Engineering Contradiction:

Improvespectrum efficiencyVSAvoidsignal energy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent employs periodic pulse train transmission with controlled duty cycles. By using intermittent pulse transmission rather than continuous waves, the system achieves spectrum efficiency while concentrating energy into discrete time slots, thereby maintaining signal energy per frequency and improving communication reliability.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS7672362B2Communications apparatus, communications system, and communications method

Publication Date: 2010.03.02 RENESAS ELECTRONICS CORP

AI summary

A communications apparatus which ensures a predetermined communication quality even when an external environment changes dynamically, and enhances a throughput for overall system, thereby achieving favorable transmission efficiency. A communications apparatus having a receiver and a transmitter and carries out sending/receiving by use of a pulse train is provided with a communication environment measuring section to measure a communication status based on an output from the receiver. The transmitter is configured such that it transmits a transmission signal, in which the transmission rate of data to be transmitted and the pulse energy have been controlled in association with each other, according to a result of the measurement.