Multi-Link Feedback Transmission for Higher Spatial Stream Efficiency

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Solution Overview

Problem

Existing technologies have not fully addressed the method of transmitting feedback information efficiently in Multi-Link operations, particularly with the increase in the maximum number of spatial streams, leading to inefficiencies in frequency utilization.

Innovation Solution

A communication apparatus and method that includes control circuitry for managing transmission of feedback information across multiple links, utilizing control information to optimize the distribution and transmission of feedback data, thereby improving frequency utilization efficiency in Multi-Link operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the maximum number of spatial streams is increased in DL MU-MIMO, then spectrum efficiency is improved, but transmission processing complexity in Multi-Link becomes insufficiently addressed

Engineering Contradiction:
Improvespectrum efficiencyVSAvoidtransmission processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments feedback information transmission by link, where each link transmits feedback information independently. This segmentation approach allows the system to handle increased spatial streams by distributing the feedback burden across multiple links, thereby maintaining spectrum efficiency while managing transmission processing complexity through divided responsibility.

Inventive Principle:
Principle #1Segmentation

2Productivity

If feedback information is transmitted in Multi-Link operations, then transmission efficiency can be improved, but frequency utilization efficiency deteriorates without optimization

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidfrequency utilization efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent changes the parameter of feedback information distribution by link, optimizing which links transmit feedback information based on system state. This parameter optimization ensures that feedback transmission improves overall transmission efficiency while minimizing the impact on frequency utilization efficiency through intelligent resource allocation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12597966B2Communication device and communication method
Publication Date: 2026.04.07 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
  • US12597966B2 patent drawing
  • US12597966B2 patent drawing
  • US12597966B2 patent drawing

AI summary

The present invention improves the efficiency of transmissions in a multilink. A communication device according to the present invention comprises: a control circuit that controls multilink transmissions on the basis of control information related to the multilink transmissions; and a transmission circuit that performs the multilink transmissions in accordance with the control of the multilink transmissions.