Communication Channel Capacity via Subcarrier Power Distribution

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Solution Overview

Problem

Conventional wireless communication systems face challenges in maximizing the capacity of communication channels while minimizing total transmit power.

Innovation Solution

The system distributes power across one or more subcarriers by varying the phase and amplitude over a predetermined period, generating unique waveforms to increase channel capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional systems maximize capacity under power constraint, then information rate is improved, but total transmit power cannot be minimized

Engineering Contradiction:

Improveinformation rateVSAvoidtotal transmit power

Core Design Contradiction:

ProductivityVSPower

Solution Approach 1:

The communication channel is segmented into multiple subcarriers, and power is distributed across these subcarriers rather than using a single carrier. This segmentation allows the system to achieve higher capacity while controlling total transmit power by optimizing power allocation across individual subcarriers.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically varies phase and amplitude of subcarriers over predetermined periods and determines waveform combinations based on distributed power. This dynamic adaptation allows the system to maximize information rate while minimizing total transmit power through real-time optimization.

Inventive Principle:

Principle #15Dynamics

2Productivity

If power is distributed across subcarriers by varying phase and amplitude, then channel capacity is increased, but system complexity increases

Engineering Contradiction:

Improvechannel capacityVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system pre-determines waveform combinations based on distributed power allocation before actual transmission. By preparing waveform combinations in advance, the system reduces real-time computational complexity while maintaining the ability to achieve high channel capacity through phase and amplitude variation.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If waveform combinations are determined based on distributed power, then spectral efficiency is enhanced, but computational requirements increase

Engineering Contradiction:

Improvespectral efficiencyVSAvoidcomputational requirements

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Waveform combinations are determined in advance based on distributed power allocation across subcarriers. This preliminary determination of waveform combinations reduces real-time computational burden while enabling the system to achieve enhanced spectral efficiency through optimized waveforms.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250125914A1System and method for increasing capacity of communication channels in a network

Publication Date: 2025.04.17 TEJAS NETWORKS LTD

AI summary

The present disclosure provides a system and a method for increasing capacity of communication channels in a network. The system distributes power across one or more subcarriers by varying a phase and an amplitude of the one or more subcarriers over a predetermined period. The system determines one or more waveforms associated with the one or more subcarriers to be transmitted based on the distributed power. The system maps a block of bits received from a bit stream, with each of the one or more waveforms and records the mapping.