Overview of the WALTER test beds. The services WALTER offers€¦ · Overview of the WALTER test...
Transcript of Overview of the WALTER test beds. The services WALTER offers€¦ · Overview of the WALTER test...
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Overview of the WALTER test beds. The services WALTER
offers
2009-10-07Sophia Antipolis, France
Manuel García Fuertes (AT4 wireless)
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1.Introduction
2.WALTER Test Categories
3.Testing Capabilities
4.Conclusions
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WALTER (Wireless Alliances for Testing Experimentand Research) is :
Specifying, testing and improving interoperabilityof broadband radio devices and for that will
Develop a pan-European broadband test bed,covering the needs, for research, industry andregulators
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WALTER gets together partners from different locations and activity areas:
(Industry, Israel) (Industry, UK)
(Test Lab, Italy) (Test Lab, Spain) (Test Lab, China)
(Coordinator, Germany) (SDO, France) (Technical Direction, UK)
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WALTER addresses:
• Short term needs of industry and regulators
• Long term needs of research communities
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1.Introduction
2.WALTER Test Categories
3.Testing Capabilities
4.Conclusions
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The WALTER test beds cover 8 test categories:Regulatory (REG)Conformance (CON)Interoperability (IOP)Radiated Performance Tests (RPT)Over The Air (OTA)Coexistence (COE)Performance (PER)Plugfests (PGF)
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The REG category deals with requirements such as (focus on EN 302 065):
Spectrum and Power Characteristics
Radiated Emissions
Detect and Avoid
Time-related Parameters
etc…
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The CON category deals with requirements coming mainly from WiMedia Test Specs (protocol testing):
PHY
MAC
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The IOP category is intended to check the multi-vendor interoperability at different layers:
MAC (WALTER IOP)
IP (Ping, data transfer…)
Upper layers…
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The RPT category deals with the radiated performance of the device:
TX (TRP measurements)
RX (TIS and desense measurements)
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The OTA category deals with:
Software Defined Radio (SDR): controlling the device over the air
o Transmit Power Control (TPC)
o Dynamic Channel Selection
o Data Rate Adaptation…
Environmental Field Tests (EFT): Real environments outside an anechoic chamber
o LOS/NLOS performance tests
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The COE category is intended to check whether two wireless technologies can coexist simultaneously:
Among different technologies (e.g. WiMAX-UWB)
Within the same technology (e.g. UWB)
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The PER category checks whether the DUT fulfils commercial assurances quoted by the manufacturer
Sensitivity - Temperature
Output Power - Temperature
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The PGF category refers to those testing activities performed at Plugfest events
Test plans developed according to participants needs
Oriented to prove multi-vendor interoperability
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1.Introduction
2.WALTER Test Categories
3.Testing Capabilities
4.Conclusions
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The WALTER test beds offer the following REG services:Standard Covered Limitations
EN 302 065 v1.2.1 EIRP below 2.7 GHz and above 10.6 GHz
DAA test methods to be validated
FCC Part 15 Subpart F EIRP in the range 960 – 1610 MHz (indoor and portabledevices)
EIRP above 12.75 GHz (portable devices)EN 301 489-33 v1.1.1 NoneFCC Part 15.107-109 None
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WALTER test bed CON services. The WALTER test beds check whether an UWB implementation is compliant to:
Test Specification Version LimitationsWiMedia PHY Test Specification 1.0, 1.2 Lack of reference units
WiMedia Platform Test Specification 1.1, 1.2 Checker for 1.2 is not available yet
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WALTER has developed TX-RX test scripts for MAC testing
o Intended to be part of WiMedia Platform Certification program
o To be validated within WALTER and in certification events
o Replaces the previous and no longer supported WiQuest TX-RX scripts
WALTER has developed an Automated MAC Test Tool
o Intended to save testing time and avoid manual testing mistakes
o Based upon validated test equipment (analyzers, generators, etc.)
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WALTER offers IOP test services for:
WALTER IOP MAC Test Specification
o Developed within WALTER
o Intended to check multi-vendor IOP at MAC level
o Validated in a WiMedia certification event (Geneva, 2008)
o Debugged and refined against real implementations
P A SS (15 )
F A IL (0 )
No n -v a lidv e rd ic t (3 )
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The OTA services offered by WALTER are:
o SDR: No SDR test specs have been specifically defined for UWB
o EFT: LOS and NLOS performance tests in office environments
WALTER offers RPT services for wireless technologies such as:
o 2G/3G Cellular communications
o WiMAX
o Wi-Fi
o UWB (experimental trials only)
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WALTER offers experimental COE test services for:
o WiMAX – UWB Coexistence
• Evaluation of performance degradation (BER, PER, etc.)
o Coexistence in UWB
• Check whether two or more UWB devices can coexist in the
channel
In terms of PER, the WALTER test beds can:
o Evaluate performance degradation against T (sensitivity,
power)
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1.Introduction
2.WALTER Test Categories
3.Testing Capabilities
4.Conclusions
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WALTER has set up test services for broadband technologies
Test services have been made more effective(automation)
WALTER test services have been validated (inter-comparison)
WALTER test beds have produced inputs for standardization bodies (ETSI) and alliances (WiMedia)
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Any questions?