RF Utilization Calculation for 802.11 WLANs
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Solution Overview
Problem
Existing IEEE 802.11 wireless local area networks face challenges in accurately calculating and reporting throughput and utilization due to various transmission errors and differing packet sizes, leading to inefficiencies and difficulties in assessing network health.
Innovation Solution
A method is proposed that calculates RF utilization by using packet and octet counters to determine packet-weighted and octet-weighted effective bit rates, providing a percentage for radio frequency exchange performance, which allows for a concise representation of network performance across different transmission speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional throughput calculation methods are used for 802.11 networks, then the calculation is simpler, but the measurement precision is lower and does not accurately reflect actual network utilization
Solution Approach 1:
The patent segments the throughput calculation by dividing it into multiple counter types (packet counters and octet counters) for each transmission speed. This segmentation allows precise tracking of data transmission at different rates while maintaining organized, manageable calculation structures that can be implemented in network devices.
Solution Approach 2:
The patent introduces weighted effective bit rate calculations as intermediary metrics that mediate between raw counter data and final throughput measurements. By using packet-weighted and octet-weighted effective bit rates, the system accurately reflects actual utilization without requiring complex direct measurement methods.
2Reliability
If radio-link utilization is assessed using estimative methods, then the assessment is easier to perform, but the reliability is lower and cannot provide exact throughput calculation
Solution Approach 1:
The patent implements feedback mechanisms by continuously updating packet counters and octet counters for each transmission speed, then recalculating weighted effective bit rates. This feedback loop ensures that utilization assessments remain accurate and reflective of actual network conditions while providing systematic, repeatable calculation procedures.
Solution Approach 2:
The patent changes the parameters used for utilization assessment from simple estimated values to multiple precise parameters including packet counters, octet counters, transmission speeds, and weighted effective bit rates. This parameter transformation enables exact throughput calculation while providing structured methods that can be systematically implemented.
3Measurement precision
If multiple packet counters for different transmission speeds are maintained, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent creates a universal counter management system where packet counters and octet counters serve multiple functions: tracking transmission volume, calculating weighted effective bit rates, and determining overall utilization. This multi-functionality reduces the need for separate specialized counters while maintaining precise measurement capabilities across different transmission speeds.
Data Source
AI summary
A radio frequency exchange utilization calculation method in wireless medium that comprises identifying a plurality of packet counters pertaining to each of a plurality of transmission speeds and to each of a plurality of components of the wireless medium, identifying a plurality of octet counters pertaining to each of a plurality of transmission speeds and to each of a plurality of components of the wireless medium, incrementing each packet counter by one in accordance to the speed a data packet is transmitted, incrementing each plurality of octet counters by a number of octets in the data packet, calculating a packet weighted effective bit rate, calculating an octet weighted effective bit rate, calculating a total data exchanged, and calculating a percentage for the radio frequency exchange performance.