R&S®SMBV-K361, R&S®SMBVBK361, R&S®SMW-K361
eCall Test Suite
User Manual
(;ÜÏé2)
1178659102
Version 06
This manual describes the following R&S®CMWrun option for software version V1.9.9 or higher:
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R&S®SMBV-K361 (eCall test suite)
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R&S®SMBVB-K361 (eCall test suite)
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R&S®SMW-K361 (eCall test suite)
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Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1178.6591.02 | Version 06 | R&S®SMBV-K361, R&S®SMBVB-K361, R&S®SMW-K361
The following abbreviations are used throughout this manual: Options R&S®SMBV-K361, R&S®SMBVB-K361, and R&S®SMW-K361
are abbreviated as R&S SMx-K361. R&S® is abbreviated as R&S. R&S®SMBV100A and R&S®SMBV100B are abbreviated as
R&S SMBV.
R&S®SMBV-K361, R&S®SMBVB-K361, R&S®SMW-K361
Contents
1 Key Features...........................................................................................5
2 Prerequisites.......................................................................................... 7
3 Test Setup............................................................................................... 9
4 System Configuration..........................................................................10
4.1 Preparation of Controller PC......................................................................................10
4.2 Preparation of Instrument Connection..................................................................... 10
4.3 Preparation of IVS Connection.................................................................................. 11
5 Test Configuration............................................................................... 16
5.1 Vehicle Simulation Setting......................................................................................... 16
Contents
5.2 GNSS Simulation Setting........................................................................................... 18
5.3 Signal Power Setting.................................................................................................. 19
5.4 Test Case Setting........................................................................................................ 20
5.5 Advanced Settings......................................................................................................21
6 Test Results.......................................................................................... 25
7 Test Module Details..............................................................................27
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Contents
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1 Key Features
The test suites R&S SMx-K361 provide eCall tests with the sequencer tool
R&S CMWrun. The tests are performed on a connected in-vehicle system (IVS). The
tests are as closely aligned with the selected test specification as possible.
The following standards are supported:
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European Union regulation 2017/79, annex VI, Technical requirements for compatibility of eCall in-vehicle systems with the positioning services provided by the Galileo and the EGNOS systems
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United Nations regulation ECE/TRANS/WP.29/GRSG/2017/12, annex 8, Test methods for the navigation solutions
The test equipment simulates a global navigation satellite system (GNSS). The
R&S CMWrun controls the test equipment via SCPI commands and the IVS typically
via vendor-specific commands. The test cases can be performed fully automatic, without user interaction.
Table 1-1: Supported test cases
Key Features
Test case Test purpose
1. Verify NMEA transmission from DUT
2. Location accuracy (static
receiver)
3. Location accuracy (moving receiver) open sky
4. Location accuracy (moving receiver) intermitted
reception and urban canyon
5. Time-to-first fix (TTFF)
under cold start conditions
Checks that the GNSS receiver outputs the navigation parameter data to
external devices in NMEA-0183 format
Estimates the error in the evaluation of the plane view and altitude in the
autonomous static mode. A static location is simulated and the error between
actual and determined location is calculated
Estimates the error in the evaluation of the plane view, altitude and velocity in
the dynamic mode. A certain trajectory is simulated and the error between
actual and determined location as well as the velocity error is calculated
Estimates the error in the evaluation of the plane view, altitude and velocity in
the dynamic mode with signal impairments. A certain trajectory is simulated,
signal is faded and partly blocked. The velocity error and the error between
actual and determined location as well as the velocity error is calculated
Determines the time to first navigation fix for a reset receiver. The ephemeris
and almanac data from all satellites are cleared and thus, the receiver has to
gain all data and the time to first fix is measured. One measurement step
comprises signal acquisition at the TX level of -130 dBm and the cold start of
the DUT, until it can acquire the signal again. The cold start is executed with
specified repetitions. The same is executed with the TX level of -140 dBm.
The averaged measurement time must not exceed 60 s for the signal level of
-130 dBm and 300 s the signal level of -140 dBm.
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Test case Test purpose
6. Reacquisition time Evaluates the restore time for signal tracking for a certain GNSS constellation after tracking was lost due to signal blockage. To simulate blockage, the
radio frequency signal is switched off for a specified time and the recovery
time is measured after the signal was switched on. One measurement step
comprises signal off, signal on, until the DUT can acquire the signal again.
Each step is executed with specified repetitions.
Key Features
7. Tracking and acquisition
sensitivity
Verifies the sensitivity of the GNSS navigation module in signal acquisition
mode and in tracking mode. The acquisition time is measured with the signal
level of -144 dBm. The tracking time is measured with the signal level of
-155 dBm. The reacquisition time is measured after configurable signal
blockage with the signal level of -150 dBm. The acquisition, tracking and
reacquisition time must be within the required limits of ≦3600 s for T
≧600 s for T
, and ≦60 s for T
Tracking
Reacquisition
.
Acquisition
,
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2 Prerequisites
Required equipment for R&S SMBV-K361:
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R&S SMBV100A for GNSS simulation must be equipped with the following options:
Hardware:
– HW option R&S SMBV-B10
– HW option R&S SMBV-B103/-B106
Minimum required options:
– R&S SMBV-K44, GPS
– R&S SMBV-K66, Galileo
– R&S SMBV-K91, extension to 12 satellites
– R&S SMBV-K92, GNSS enhanced (motion files, atmospheric effects)
– R&S SMBV-K96, extension to 24 satellites
– R&S SMBV-K110, SBAS
Additional options for full test coverage:
– R&S SMBV-K102, antenna pattern and R&S SMBV-K103, spinning and attitude
simulation for test location accuracy with moving receiver - intermitted reception and urban canyon (test case 4)
– R&S SMBV-K94, GLONASS for testing in line with UN specification (test cases
1 to 7)
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R&S CMWrun base software, version 1.8.10 or higher.
No smart card and no licenses are required for R&S CMWrun.
Prerequisites
Required equipment for R&S SMBVB-K361:
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R&S SMBV100B for GNSS simulation must be equipped with the following options:
Hardware:
– HW option R&S SMBVB-B103
Minimum required options:
– R&S SMBVB-K520 real-time extension
– R&S SMBVB-K44, GPS
– R&S SMBVB-K66, Galileo
– R&S SMBVB-K106, SBAS
Additional options for full test coverage:
– R&S SMBVB-K108, antenna pattern, spinning and attitude simulation for test
location accuracy with moving receiver - intermitted reception and urban canyon (test case 4)
– R&S SMBVB-K94, GLONASS for testing in line with UN specification (test
cases 1 to 7)
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R&S CMWrun base software, version 1.9.6 or higher.
No smart card and no licenses are required for R&S CMWrun.
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Required equipment for R&S SMW-K361:
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R&S SMW200A for GNSS simulation must be equipped with the following options:
Hardware:
– HW option R&S SMW-B10
– HW option R&S SMW-B103/-B203
Minimum required options:
– R&S SMW-K44, GPS
– R&S SMW-K66, Galileo
– R&S SMW-K106, SBAS
Additional options for full test coverage:
– R&S SMW-K108, antenna pattern, spinning and attitude simulation for test
location accuracy with moving receiver - intermitted reception and urban canyon (test case 4)
– R&S SMW-K94, GLONASS for testing in line with UN specification (test cases
1 to 7)
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R&S CMWrun base software, version 1.9.5 or higher.
No smart card and no licenses are required for R&S CMWrun.
Prerequisites
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3 Test Setup
The following figure provides an overview of the test setup. In this example, the instrument R&S SMBV100A is used. The test setup with another supported instrument is
similar.
Test Setup
The test setup comprises the following components:
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An instrument, providing GNSS signals to the IVS for positioning.
Connect the RF output port of the instrument to the RF port of the IVS (GNSS
receiver).
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A computer executing the R&S CMWrun.
The computer controls the instrument via SCPI connections (typically LAN). It controls the IVS typically via vendor-specific commands on a serial port interface.
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External attenuator is recommended for levels below -120 dBm, refer to "External
Power Attenuation" on page 19.
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