Access Point Antenna Selection Using Fixed MCS Training

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Solution Overview

Problem

The existing methods for selecting optimal antennas in access points are inefficient, particularly when connection quality is poor or when the number of supported Modulation and Coding Scheme (MCS) codes is large, leading to prolonged training times.

Innovation Solution

An access point with a processor and wireless network module uses a specific MCS code to transmit training packets to an electronic device without switching other codes, determining the optimal antenna based on the response, thereby reducing the training procedure's execution time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the access point switches different MCS codes during the training procedure to confirm the selected antenna, then the antenna selecting accuracy is improved, but the training time is prolonged

Engineering Contradiction:
Improveantenna selecting accuracyVSAvoidtraining time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using a specific MCS code (e.g., MCS0) that is supported by all electronic devices before antenna selection. This preliminary setup eliminates the need to switch MCS codes during the training procedure, allowing the access point to determine the optimal antenna using only this specific MCS code, thereby reducing training time while maintaining selection accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent extracts the MCS code switching operation from the antenna selection training procedure. By separating the MCS code determination from the antenna selection process, the system uses a fixed specific MCS code during antenna training, removing the time-consuming code switching while preserving the ability to determine optimal antennas based on connection quality metrics

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the access point uses a training procedure with multiple MCS codes to determine optimal antenna, then the connection quality assessment is improved, but the executing time of training procedure is prolonged

Engineering Contradiction:
Improveconnection quality assessmentVSAvoidtraining procedure execution time
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system performs preliminary determination of a specific MCS code that is guaranteed to be supported by the electronic device before initiating the antenna training procedure. This preliminary action ensures that the training can proceed with a fixed MCS code, maintaining reliable connection quality assessment without the time penalty of code switching

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter of MCS code from a dynamic switching variable to a fixed specific value during the antenna training phase. By setting the MCS code to a specific supported value (such as MCS0) and keeping it constant throughout the training procedure, the system reduces execution time while still accurately assessing connection quality for antenna selection

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9717033B2Access point and associated antenna selecting method
Publication Date: 2017.07.25 WISTRON NEWEB CORP
  • US9717033B2 patent drawing
  • US9717033B2 patent drawing
  • US9717033B2 patent drawing

AI summary

An access point includes an antenna module, a wireless network module and a processor, wherein the processor includes a plurality of Modulation and Coding Scheme code (MCS) codes supported by the electronic device. When the access point operates in a training stage for determining at least one optimal antenna adapted to the electronic device, the processor uses a specific MCS code from the plurality of MCS codes to transmit the plurality of training packets to the electronic device via the antenna module and the wireless network module without switching the other MCS codes for determining the at least one optimal antenna adapted to the electronic device.