Multi-Path Transmitter Gain and Phase Control Against Signal Attenuation

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Solution Overview

Problem

The degradation of communication performance in high-frequency band communication devices due to signal attenuation is a significant issue, necessitating improved transmission methods.

Innovation Solution

A transmitter with multiple transmission paths and a control module that dynamically adjusts complex gain settings, including gain and phase values, based on communication-related indicators to enhance performance in multi-path transmission mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple transmission paths are enabled in multi-path transmission mode, then transmission performance and coverage are improved, but device complexity increases

Engineering Contradiction:
Improvetransmission performanceVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The transmission system is divided into multiple independent transmission paths, each with its own antenna and gain control. This segmentation allows the system to activate only the necessary number of paths based on channel conditions, achieving diverse selection without always operating in full multi-path mode, thus managing complexity while maintaining performance improvement options.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic gain control for each transmission path based on real-time channel quality indicators. The system can adaptively adjust or deactivate individual paths according to current transmission conditions, transitioning between single-path and multi-path modes dynamically. This dynamic operation allows the system to maintain low complexity during simple conditions while achieving high performance when needed.

Inventive Principle:
Principle #15Dynamics

2Reliability

If dynamic adjustment of complex gain settings is implemented, then signal attenuation is mitigated and transmission performance is improved, but control complexity increases

Engineering Contradiction:
Improvetransmission performanceVSAvoidcontrol complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system employs feedback mechanisms where channel quality indicators are continuously monitored and used to adjust gain settings for each transmission path. This feedback loop enables automatic adaptation to changing channel conditions, allowing the system to mitigate signal attenuation through real-time gain adjustment without requiring complex manual control or excessive computational overhead.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent adjusts complex gain parameters (magnitude and phase) for each transmission path based on channel conditions. By changing these parameters dynamically, the system can compensate for signal attenuation and optimize transmission performance. The parameter adjustment is performed in a controlled manner that balances performance improvement with acceptable control complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250253900A1Transmitter and control method therefor
Publication Date: 2025.08.07 MEDIATEK INC
  • US20250253900A1 patent drawing
  • US20250253900A1 patent drawing
  • US20250253900A1 patent drawing

AI summary

A transmitter is provided and includes a plurality of transmission paths, a configure module and a control module. Each of the transmission paths comprises a corresponding antenna. The configure module is configured to obtain a communication-related indicator during the transmitter operating in a multi-path transmission mode, in which multiple transmission paths among the plurality of transmission paths are enabled, and adaptively generate configuration information to a control module in response to changes of the communication-related indicator for dynamically adjusting the complex gain setting of the multiple transmission paths, wherein the complex gain setting comprises at least one gain value and at least one phase value. The control module is configured to generate corresponding transmission data for the multiple transmission paths according to received input data and the configuration information.