Dynamic Antenna Mode Control for Wi-Fi 6E Space-Sharing

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Solution Overview

Problem

The IEEE 802.11ad protocol faces challenges in achieving a high success rate for space-shared communication between station pairs due to signal interference and limited antenna modes, resulting in low success rates when multiple station pairs attempt to communicate simultaneously on the same frequency band.

Innovation Solution

A communication method that involves receiving channel quality measurement reports from stations, sending grant frames to instruct changes in antenna modes if noise thresholds are exceeded, and optimizing communication periods to reduce interference and increase successful space-shared communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple station pairs attempt to communicate simultaneously on the same frequency band using fixed antenna modes, then space-shared communication is enabled, but signal interference increases and communication success rate decreases

Engineering Contradiction:

Improvecommunication success rateVSAvoidsignal interference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by enabling antenna modes to change dynamically during communication. The access point can switch between different antenna modes based on real-time channel quality measurements and interference conditions, allowing the system to adapt to changing environmental factors and maintain optimal communication performance while reducing interference.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of antenna mode selection based on measured channel noise values and interference conditions. By monitoring channel quality and adjusting antenna modes accordingly, the system optimizes the balance between enabling multiple simultaneous communications and minimizing signal interference, thereby improving overall communication success rate.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If only one fixed antenna mode is used for communication between stations, then beamforming training is simplified, but the ability to handle interference and achieve successful space-shared communication is limited

Engineering Contradiction:

Improvebeamforming training complexityVSAvoidcommunication reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system transitions from a static fixed antenna mode to a dynamic multi-mode antenna configuration. The access point can switch between different antenna modes based on real-time channel quality measurements and interference conditions, allowing the system to adapt to changing environmental factors and maintain optimal communication performance.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If channel quality measurement is performed sequentially for multiple stations, then measurement coordination is simplified, but measurement time increases and signaling overhead increases

Engineering Contradiction:

Improvemeasurement coordination complexityVSAvoidmeasurement time

Core Design Contradiction:

Device complexityVSLoss of time

Solution Approach 1:

The patent merges multiple channel quality measurement processes into a coordinated simultaneous measurement framework. By enabling multiple station pairs to perform measurements concurrently under controlled conditions, the system reduces total measurement time and signaling overhead while maintaining measurement accuracy and coordination integrity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10966111B2Communication method, access point, and station

Publication Date: 2021.03.30 HUAWEI TECH CO LTD

AI summary

Embodiments of the present invention provide a method which includes: sending a first channel quality measurement report, wherein the first channel quality measurement report indicates a channel noise value measured in a first time period by a first station in a second antenna mode when a third station and a fourth station communicate with each other in a first antenna mode; and receiving an grant frame sent by the AP based on the first channel quality measurement report, wherein the grant frame carries first instruction information and/or second instruction information. A success rate of space-shared communication between station pairs can be increased.