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Bluetooth Compliance Testing

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Bluetooth Compliance Testing Overview Differences between 802.11 /Bluetooth Why ? Is there a Qualification Who ? Controls the process What ? – PowerPoint PPT presentation

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Title: Bluetooth Compliance Testing


1
Bluetooth Compliance Testing
2
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

3
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

4
WHY ?
5
Qualification / TA
Bluetooth Devices
Qualification Program
Regulatory Approval

'License to sell'
Global Market
6
Qualification vs. TA
Bluetooth Devices
Qualification Program
Regulatory Type Approval
7
WHY ?
  • Technology Requirements
  • Technology verification
  • Compatibility, Interoperability
  • Marketing
  • Regulatory requirements
  • Health / Safety Standards
  • Local spectrum use regulations e.g. FCC,ETSI
  • Licensing

8
WHO ?
9
SIG Organization
10
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
11
WHAT ?
12
SIG Test Specifications
13
SIG Test Case reference list
Test Specifications Test case
categories
14
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 qualification value. The purpose of this
    status is to inform any manufactorer about an
    upcoming test case.

15
HOW ?
16
HOW ?
  • Process
  • RF Test
  • Equipment setup
  • Types of test
  • Protocol
  • Black box
  • Control
  • Reference implementation
  • TTCN

17
HOW - Process
18
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, ...
19
www.bluetooth.com/dev/qual.bodies.asp
20
www.bluetooth.com/dev/qual.facil.asp
21
HOW - RF Test setup
22
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

23
Example Test Case Parameterisation
RX Tests
Co-channel rejection
Adjacent channel rejection
Intermodulation rejection
Blocking
freq.
24
RF Test System
25
RF Test System
  • Qualification and Type Approval
  • TS8960
  • Fully compliant to Bluetooth RF 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 validation Beginning of 2001

26
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
27
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

28
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

29
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

30
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

31
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

32
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

33
HOW - Protocol Test
34
Protocol Test Requirements
  • Tester Requirements
  • Test Methods
  • Reference Tests

35
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

36
Basic Layer Testing
  • Local test method

37
Profile Testing
  • Remote test method

38
Point of Control and Observation (PCO)!
39
TTCN Example
40
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

41
TTCN...
42
TTCN Trace
43
Sample PTW60
44
The goal of all this ?
45
qualweb.opengroup.org/Template.cfm
46
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.
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