Bluetooth Compliance Testing

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Bluetooth Compliance Testing
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Overview

• Differences between 802.11 /Bluetooth
• Why ?
• Is there a Qualification
• Who ?
• Controls the process
• What ?
• Is tested
• How ?
• Can the Qualification be obtained
• Do I perform the tests

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Differences 802.11/Bluetooth

• 802.11
• One to One connection
• Always on
• Non hopping
• Higher data rate
• Currently up to 11 MBps
• Features
• Only IP
• Approach
• Define standard
• Let market work out issues

• Bluetooth
• One to seven parallel connection
• Only on when used
• Fast hopping 1600 hops/s
• Restricted data rate
• Currently 1MB gross datarate
• Special Features
• Serial, Parallel, Audio, IP, customizable
• Approach
• Defined Specification and req. Tests
• Work out a common base before marketed

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WHY ?
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Qualification / TA
Bluetooth Devices
Qualification Program
Regulatory Approval

'License to sell'
Global Market
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Qualification vs. TA
Bluetooth Devices
Qualification Program
Regulatory Type Approval
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WHY ?

• Technology Requirements
• Technology verification
• Compatibility, Interoperability
• Marketing
• Regulatory requirements
• Health / Safety Standards
• Local spectrum use regulations e.g. FCC,ETSI
• Licensing

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WHO ?
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SIG Organization
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SIG Organization
Qualification Review Board (BQRB)
Bluetooth Qualification Review Board Sets and
maintains qualification policy
Bluetooth Technical Advisory Board Information
exchange and forum for problems related to
testing and qualification
BTAB
BQA
Bluetooth Qualification Administrator Acts on
behalf of BQRB BQA_at_Bluetooth.com
BQB
Bluetooth Qualification Body Checks declarations,
review test reports
Bluetooth Qualification Test Facility Accredited
to perform category A conformance tests
BQTF
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WHAT ?
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SIG Test Specifications
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SIG Test Case reference list
Test Specifications Test case
categories
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SIG Testing

• Four test categories, A-D, are described in the
  Test Case Reference List (TCRL) tables
• Category A This test case is fully validated
  and commercially available. This testcase is
  mandatory and shall be performed at a BQTF.
• Category B This test case shall be performed
  and a declaration with evidence is required. The
  instructions given in the test specification
  shall be followed.
• Category C Bluetooth products can be tested
  using standard test equipment by the manufacturer
  or BQTF. The test case shall be performed
• Category D A preliminary test case with no
  official qualificationvalue. The purpose of this
  status is to inform anymanufactorer about an
  upcoming test case.

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HOW ?
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HOW ?

• Process
• RF Test
• Equipment setup
• Types of test
• Protocol
• Black box
• Control
• Reference implementation
• TTCN

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HOW - Process
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Qualification process
Product tested by BQTF
DoC / Compliance Folder reviewed by BQB
Qualified product list (QPL)
ICS IXIT Test plan
performs cat. A test cases conf. and interop.
Test Reports checked by BQB
performs cat. B test declares cat. C test
List of BQTFs,BQBs,... Test Specs, TCRL, ...
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www.bluetooth.com/dev/qual.bodies.asp
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www.bluetooth.com/dev/qual.facil.asp
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HOW - RF Test setup
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RF Test Purposes

• Transmitter
• Output power
• Power density
• Power control
• TX output spectrum (3)
• Modulation characteristics
• Initial carrier frequency tolerance
• Carrier frequency drift
• Out of band spurious emissions

• Receiver
• Sensitivity - single slot packets
• Sensitivity - multi slot packets
• C/I performance
• Blocking performance
• Intermodulation performance
• Maximum input level

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Example Test Case Parameterisation
RX Tests
Co-channel rejection
Adjacent channel rejection
Intermodulation rejection
Blocking
freq.
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RF Test System
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RF Test System

• Qualification and Type Approval
• TS8960
• Fully compliant to BluetoothRF test
  specification
• Testmode signalling
• All 16 test cases implemented(test spec V0.9 as
  of Jan 01)
• Variation of parameters /creation of own test
  cases possible
• Acceptance of validationBeginning of 2001

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RF Test Purposes
TP naming conventions TP/ltfuncgt/ltxxgt-ltnngt-ltygt ltf
uncgt Function TRM Transmitter test TRC
Transceiver test RCV Receiver test ltxxgt Type
of testing CA Capability BV Valid
Behavior BI Invalid Behavior ltnngt sequencial
Test Purpose Number ltygt Scope C Conformance
test, performend on dedicated Bluetooth
Test System E Early product test,
performed on standard equipment I
Interoperability testing performend as
product to product testing
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Transmitter Test Purposes

• TRM/CA/04/C TX Output Spectrum - Frequency Range
• Verification if the emissions inside the
  operating frequency range are within the limits
• _at_ normal extreme test conditions
• EUT in test mode loop back, hopping off
• TRM/CA/05/C TX Output Spectrum - 20 dB Bandwidth
• Verification if the emissions inside the
  operating frequency range are within the limits
• _at_ 3 frequencies _at_ normal extreme test
  conditions
• EUT in test mode loop back, hopping off
• TRM/CA/06/C TX Output Spectrum - Adjacent channel
  power
• Verification if the emissions inside the
  operating frequency range are within the limits
• _at_ all channels for 3 frequencies _at_ ne test
  conditions
• EUT in test mode loop back, hopping off

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Transmitter Test Purposes

• TRM/CA/01/C Output power
• Verification of the maximum peak and average RF
  output power
• 3 frequencies _at_ normal extreme test conditions
• EUT in test mode loop back, hopping on
• TRM/CA/02/C Power density
• Verification of the maximum power density
• _at_ normal extreme test conditions
• EUT in test mode loop back, hopping on
• TRM/CA/03/C Power control
• Verification ot the TX power control (if
  supported)
• Initial condition and test procedure like Output
  power

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Transmitter Testpurposes

• TRM/CA/07/C Modulation Characteristics
• Verification of the modulation index
• _at_ normal extreme test conditions
• EUT in test mode loop back, hopping off
• TRM/CA/08/C Initial Carrier Frequency Tolerance
• Verification of the transmitter carrier frequency
  accuracy
• _at_ 3 frequencies _at_ all frequencies _at_ normal
  extreme test conditions
• EUT in test mode loop back, hopping on / off
• TRM/CA/09/C Carrier Frequency Drift
• Verification of the transmitter centre frequency
  drift within a packet
• _at_ 3 frequencies _at_ all frequencies _at_ normal
  extreme test conditions
• EUT in test mode loop back, hopping on / off

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Transceiver Test Purposes

• TRC/CA/01/C Out-of-Band Spurious Emissions
• Verification if the emissions outside the
  operating frequency range are within the limits
• ETS 300 328
• Conducted from antenna port - 30 MHz to 12,75 GHz
• Radiated from cabinet - 30 MHz to 12,75 GHz
  (signal. via cable)
• Radiated from EUT - 30 MHz to 12,75 GHz (signal.
  via airlink)
• FCC Part15.247
• Conducted from antenna port - 30 MHz to 25 GHz
• Radiated from EUT - 30 MHz to 25 GHz
• Conducted measurements _at_ normal extreme test
  conditions
• Radiated measurements _at_ normal test conditions
• EUT in test mode loop back, hopping off

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Receiver Test Purposes

• RCV/CA/01/C Sensitivity - single slot packets
• The sensitivity is tested using a non-ideal
  transmitter. The EUT must meet the required
  sensitivity for this non ideal signal
• _at_ 3 frequencies _at_ normal extreme test
  conditions
• EUT in test mode loop back, hopping off
• RCV/CA/02/C Sensitivity - multi slot packet
• Like RCV/CA/01/C
• RCV/CA/03/C C/I performance
• Verification of the receivers performance in
  presence co-/adjacent channel interference
• wanted signal _at_ 3 frequencies / interfering
  signals _at_ all frequencies _at_ normal test
  conditions
• EUT in test mode loop back, hopping off

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Receiver Test Purposes

• RCV/CA/04/C Blocking performance
• Verification of the receivers performance in
  presence of interference
• Wanted signal _at_ 1 frequency / interfering signal
  _at_ 30 MHz to 12,75 GHz
• EUT in test mode loop back, hopping off
• RCV/CA/05/C Intermodulation performance
• Verification of the receivers intermodulation
  characteristics
• Wanted signal _at_ 3 frequencies - 2 interfering
  signals _at_ normal test conditions
• EUT in test mode loop back, hopping off
• RCV/CA/06/C Maximum input level
• Verification of the receivers performance
• _at_ 3 frequencies _at_ normal test conditions
• EUT in test mode loop back, hopping off

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HOW - Protocol Test
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Protocol Test Requirements

• Tester Requirements
• Test Methods
• Reference Tests

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Protocol Tester Concept

• All layers in software(no baseband chips)
• Availability of all interlayer communications via
  SAP Service Access Points
• Simulation of master and slave modes

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Basic Layer Testing

• Local test method

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Profile Testing

• Remote test method

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Point of Control and Observation (PCO)!
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TTCN Example
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TTCN Test Suite - Test Case

• Abstract Test Case (ATC)A complete and
  independent specification of the action required
  to achieve a specific test purpose
• starting in a stable state
• ending in a stable state
• Abstract Test Suite (ATS)A test suite composed
  of ATCs
• Executable Test Case (ETC)A realization of a ATC
• Executable Test Suite (ETS)A set composed of ETCs

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TTCN...
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TTCN Trace
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Sample PTW60
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The goal of all this ?
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qualweb.opengroup.org/Template.cfm
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Bio

• Karsten Beckmann is the manager of test
  measurement systems for Rhode Schwarz and
  operates from Tektronix in Beaverton, Oregon.
  Beckmann holds an EE from the Technical
  University in Munich, Germany.
•  
• Rohde Schwarz test and measurement products
  are marketed and supported in North America by
  Tektronix under a strategic alliance formed in
  1993.