Adaptive Interference Channel Collection Mode Switching

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Solution Overview

Problem

In communication systems where multiple transmit-receive pairs share the same frequency resource, interference channel information varies in real time, making it challenging to update shared information without increasing overhead, which affects frequency efficiency and throughput.

Innovation Solution

A method that selects between an orthogonal mode and a concurrent mode for collecting interference channel information, allowing transmit-receive pairs to apply a simultaneous transmission/reception scheme based on collected data, with the option to suspend additional interference channel information collection in the concurrent mode, and adjust modes based on reception quality to maintain effective interference control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If interference channel information is updated in real time to reflect changes, then the accuracy of interference control is improved, but the overhead in the communication system increases

Engineering Contradiction:
Improveinterference channel information accuracyVSAvoidoverhead
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent implements dynamic mode switching between orthogonal and concurrent modes based on interference channel conditions. The system transitions from static to adaptive operation, selecting the orthogonal mode when interference changes are significant and the concurrent mode when interference is stable, thereby optimizing the balance between accuracy and overhead

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter (mode of operation) between orthogonal and concurrent modes based on the validity of interference channel information. This parameter change allows the system to adapt to varying interference conditions without continuously updating all channel information, reducing overhead while maintaining control accuracy

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If orthogonal mode is used to collect interference channel information sequentially, then overhead is reduced, but the responsiveness to real-time interference changes deteriorates

Engineering Contradiction:
ImproveoverheadVSAvoidresponsiveness to interference changes
Core Design Contradiction:
Quantity of substanceVSSpeed

Solution Approach 1:

The system dynamically switches between orthogonal and concurrent modes based on the validity of interference channel information. When interference conditions change significantly, the system transitions to orthogonal mode for accurate measurement; when conditions are stable, it uses concurrent mode for rapid response, thus achieving both low overhead and high responsiveness

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms to monitor the validity of interference channel information and determines when to switch between modes. This feedback loop ensures that the system responds appropriately to interference changes while maintaining efficient resource utilization

Inventive Principle:
Principle #23Feedback

3Productivity

If concurrent mode is used for simultaneous transmission/reception, then frequency efficiency is improved, but the reliability of interference control deteriorates when interference channel information becomes invalid

Engineering Contradiction:
Improvefrequency efficiencyVSAvoidinterference control reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system implements dynamic mode selection between concurrent and orthogonal modes based on interference channel validity. The concurrent mode is used when interference information is valid to maximize frequency efficiency, while the orthogonal mode is activated when validity is compromised, ensuring reliable interference control under varying conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The operational mode parameter is changed based on the validity of interference channel information. This parameter change allows the system to maintain high frequency efficiency through concurrent mode while ensuring reliability by switching to orthogonal mode when interference conditions deteriorate

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS8374554B2Communication system for adjusting mode of collecting interference channel information
Publication Date: 2013.02.12 SAMSUNG ELECTRONICS CO LTD
  • US8374554B2 patent drawing
  • US8374554B2 patent drawing
  • US8374554B2 patent drawing

AI summary

A plurality of transmit-receive pairs may operate in any one mode between an orthogonal mode and a concurrent mode. The transmit-receive pairs may collect interference channel information in a different time interval when operating in an orthogonal mode. In a concurrent mode, the transmit-receive pairs may apply a simultaneous transmission/reception scheme based on the collected interference channel information.