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pwhm static puncturing

BAPTISTE SOUCHIER edited this page 2025-11-19 15:51:32 +00:00

Table of Contents

• Introduction
• Wi-Fi protocol
• Architecture
• Data-Model
• Example

[[TOC]]

Introduction

Wi-Fi protocol

Wi-Fi 7 introduces the possibility to avoid transmissions on part of the channel bandwidth when it is unfit to stable communication. This is called Channel Puncturing.

For instance, the Access Point, while configured to channel 36 / 80 MHz, could be configured to only transmit over the 20 MHz channels 36 , 44 and 48. The channel 40 would then be “punctured”.

For more details, refer to Chapter 35.15.2 Preamble puncturing operation of the Wi-Fi 7 standard.

About EasyMesh implementation, please refer to the dedicated page : Static Puncturing

Architecture

pwhm offers the possiblity to configure the list of channels to be "punctured" as a configuration parameter of the Radio.

pWHM will convert DisabledSubChannels to a bitmap of the 20MHz channels that must be disabled, and will interact with LL-API hostapd configuration parameter punct_bitmap.

Data-Model

Name	Type	Write	Description
Device.WiFi.Radio.{i}.X_PRPLWARE-COM_StaticPuncturing.DisabledSubChannels	string	W	Comma-separated list of channels to disable.

Example

• Disable Channel 48

WiFi.Radio.2.StaticPuncturing.DisabledSubChannels="48,52"
WiFi.Radio.2.StaticPuncturing.DisabledSubChannels?
WiFi.Radio.2.StaticPuncturing.DisabledSubChannels="48,52"