Short Beacon Frame Management for Wi-Fi 8 ELR Throughput

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Solution Overview

Problem

The implementation of Extended Long Range (ELR) Physical Layer Protocol Data Units (PPDUs) in Wi-Fi 8 technology for downlink operations leads to discrepancies in reception ranges, causing overhead issues with beacon frames, which significantly reduce network throughput due to excessive management information overhead.

Innovation Solution

The proposal involves transmitting a Beacon frame with ELR PPDU and duplicating it, while implementing a short beacon frame containing only basic discovery information, transmitting ELR beacons at longer intervals, and establishing rules for multi-link device operations to reduce overhead, along with dynamic rate adaptation and advanced network management features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If beacon frames are transmitted frequently to maintain network management, then network coverage and discovery capability are improved, but network throughput deteriorates due to excessive management information overhead

Engineering Contradiction:

Improvenetwork coverage and discovery capabilityVSAvoidnetwork throughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent extracts only the essential discovery information from complete beacon frames to create condensed discovery frames. This extraction principle removes redundant management information while retaining critical network discovery data, thereby reducing overhead and improving throughput while maintaining coverage capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments beacon transmission into two types: complete beacon frames for full network management and condensed discovery frames for essential coverage and discovery. This segmentation allows the system to optimize for both coverage and throughput by using the appropriate frame type for each purpose.

Inventive Principle:

Principle #1Segmentation

2Length of moving object

If ELR PPDU is enabled for downlink operation to extend reception range, then communication range is improved, but beacon frame overhead increases causing throughput reduction

Engineering Contradiction:

Improvecommunication rangeVSAvoidnetwork throughput

Core Design Contradiction:

Length of moving objectVSProductivity

Solution Approach 1:

The patent creates condensed copies of beacon frames called discovery frames that contain only essential discovery information. These copies are transmitted at extended range intervals to maintain coverage while significantly reducing the overhead burden on network throughput compared to transmitting full beacon frames at the same intervals.

Inventive Principle:

Principle #26Copying

3Loss of information

If regular beacon frames are transmitted at target beacon transmission time, then network management information is complete, but transmission overhead becomes excessive

Engineering Contradiction:

Improvenetwork management information completenessVSAvoidtransmission overhead

Core Design Contradiction:

Loss of informationVSLoss of energy

Solution Approach 1:

The patent extracts only the essential discovery information elements from complete beacon frames to create condensed discovery frames. This extraction maintains the critical information needed for network operation while removing redundant management data, thereby reducing transmission overhead and energy consumption.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by transmitting only the necessary discovery information rather than complete beacon frames at all intervals. This partial transmission approach provides sufficient information for network discovery and basic management while avoiding the excessive overhead of full beacon frames.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20230247530A1Enhanced long range communication in wireless networks with short beacon and discovery frame management

Publication Date: 2023.08.03 INTEL CORP

AI summary

This disclosure describes systems, methods, and devices related to enhanced long range communication. A device may generate a short beacon frame or a discovery frame comprising discovery information and operation information. The device may incorporate basic discovery information for a basic service set (BSS) into the short beacon frame or the discovery frame, including basic service set identifier (BSSID), service set identifier (SSID), basic rates for enhanced long range, and regulatory transmit (TX) power. The device may prevent a transmission of regular beacon frames at a target beacon transmission time (TBTT) when using ELR PPDUs. The device may cause to send the short beacon frame or the discovery frame to one or more station devices (STAs) in an enhanced long range (ELR) physical protocol data unit (PPDU).