Multi-Channel Signal Correction Using Uniform and Local Adjustment

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Solution Overview

Problem

Existing correction methods for non-ideal channels in communication technologies lack accuracy and efficiency due to direct signal correction on a single channel without considering channel differences, leading to incomplete interference alleviation.

Innovation Solution

A correction apparatus and method that includes a first adjustment module, multiple second adjustment modules, and a correction calculation module, where the first adjustment module uniformly corrects error values across non-ideal channels, and the second adjustment modules perform complementary corrections on each channel, using calculated parameters to adjust drive signals and channel signals respectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single correction circuit is used to correct all non-ideal channels, then device complexity is reduced, but correction precision deteriorates because channel differences are not considered

Engineering Contradiction:
Improvecorrection circuit structureVSAvoidcorrection precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The correction circuit is segmented into a first adjustment module for uniform correction and multiple second adjustment modules for individual channel correction. This segmentation allows the system to consider channel differences while maintaining reasonable device complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different correction strategies are applied to different channels based on their specific characteristics. The first adjustment module provides uniform correction for all channels, while second adjustment modules provide customized correction for each non-ideal channel, achieving local optimization.

Inventive Principle:
Principle #3Local quality

2Speed

If direct correction on the single signal channel is performed, then correction speed is improved, but correction precision deteriorates due to incomplete interference alleviation

Engineering Contradiction:
Improvecorrection speedVSAvoidcorrection precision
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The correction process is segmented into two stages: uniform correction by the first adjustment module and individual channel correction by second adjustment modules. This segmentation enables comprehensive interference alleviation while maintaining efficient correction speed through parallel processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first adjustment module performs preliminary uniform correction on all channels before the second adjustment modules perform individual channel correction. This preliminary action reduces overall interference levels, allowing subsequent precise correction to be more effective.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11265061B2Correction apparatus and correction method
Publication Date: 2022.03.01 HUAWEI TECH CO LTD
  • US11265061B2 patent drawing
  • US11265061B2 patent drawing
  • US11265061B2 patent drawing

AI summary

The present disclosure relates to correction apparatus and correction methods. One example correction apparatus includes a first adjustment module, a plurality of second adjustment modules, a correction calculation module, and a plurality of non-ideal channels. One second adjustment module is disposed on one non-ideal channel. The first adjustment module is connected to each non-ideal channel. The correction calculation module is separately connected to the first adjustment module and the plurality of second adjustment modules. The correction calculation module is connected to an output end of each non-ideal channel. The non-ideal channel is a channel that outputs an output signal in response to a drive signal having an error value.