doc.: ieee 802.11-06/tbd submission march/2006 pertti visuri, airgain, inc. over the air testing -...

March/2006

Pertti Visuri, Airgain, Inc.

doc.: IEEE 802.11-06/tbd

Submission

Over the Air Testing - Comparing Systems with Different Antennas

Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.11.

Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair < [email protected]> as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <[email protected]>.

Date: 2006-3-06

Name Company Address Phone emailAuthors:

5355 Ave Encinas, Carlsbad, CA 92008Airgain, Inc Pertti Visuri (760) 597 0200 [email protected]

March/2006



Submission

TGT Stakeholders, Target Audience

TGT Output Secondary Metrics (examples)

TGT Output Primary Metrics (examples)

System Integrators, Hardware resellers, Installers, IT managers, Test Labs

End users, System Installers, Magazine Reviewers, Test Laboratories, IT Managers, etc.

Receiver Sensitivity, Radiated Power, Forwarding Rate, SNR, Loss Rate,

ARP, etc.

Throughput, Range, Dropped Frame

Rate, Image quality, Voice Quality,

Bandwidth utilization (call capacity), etc.TGT defined

Metrics, Methodology & Test Conditions

Silicon Providers, Software Providers, Test Systems, ODMs

System Integrators, Hardware Resellers, OEMs

From Document: IEEE 802.11-05/0177r0

March/2006



Submission

From PAR• Scope and Purpose of TGT (in PAR):

– “The scope of the project is to provide a set of performance metrics, measurement methodologies, and test conditions to enable measuring and predicting the performance of 802.11 WLAN devices and networks at the component and application level.”

– “The purpose of the project is to enable testing, comparison, and deployment planning of 802.11 WLAN devices based on a common and accepted set of performance metrics, measurement methodologies and test conditions”

– “The target audience for the Recommended Practice includes developers of chipsets, components, equipment and software that uses or must interact with 802.11 wireless equipment, as well as users of 802.11 equipment, including system installers, IT managers and test laboratories.”

• Key Requirements for defining a proposal– Test Environments/Conditions– Performance Metrics– Measurement Methodology– Correlation with end-user experience

Usage+

Environment

MetricsPrimary/Secondary

MethodologyTest Environment

Test ProcedureTest Template

Analyze/Validate/Correlate


March/2006



Submission

Three basic Test Environments

Anechoic Conductive OTA

Video/voice quality, Call capacity etc. over attenuation

Video/voice quality over range

Throughput vs. attenuation, /vs. DUT orientation

Throughput, Throughput, Latency vs. Latency vs. attenuation,attenuation,

Throughput vs. range

Bit Error rate, Packet Loss, jitter



EIRP, Signal strength, SNR, etc

Signal strength, SNR,

Signal strength, SNR

Environments

March/2006



Submission

Four Kinds of Metrics


Application Metrics



Primary performance Metrics




Link Metrics




PHY – layer Metrics




Metrics

Environments

March/2006



Submission

Examples of Metrics v. Environments


Application Metrics



Primary performance Metrics




Link Metrics


Bit Error rate, Packet Loss, jitter, BSS trans

Bit Error rate, Packet Loss,

PHY – layer Metrics




Metrics

Environments

March/2006



Submission

TGT Stakeholders, Target Audience

TGT Output Secondary Metrics (examples)

TGT Output Primary Metrics (examples)


End users, System Installers, Magazine Reviewers, Test Laboratories, IT Managers, etc.

Receiver Sensitivity, Radiated Power, Forwarding Rate, SNR, Loss Rate,

ARP, etc.

Throughput, Range, Dropped Frame

Rate, Image quality, Voice Quality,

Bandwidth utilization (call capacity), etc.TGT defined

Metrics, Methodology & Test Conditions




Test equipment and Service Providers

March/2006



Submission

Level of ComplexityEnd users, System Installers, Magazine Reviewers, Test Laboratories, IT Managers, etc.

Test equipment and Service Providers




doc.: ieee 802.11-06/tbd submission march/2006 pertti visuri, airgain, inc. over the air testing -...

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