Wireless Technology Test Challenges Facing the Automotive Industry

Transcription

1 Wireless Technology Test Challenges Facing the Automotive Industry October 2015 John Russell Keysight Technologies 1

2 Connected Car A Connected Lifestyle Is A Given Automakers agree that building connected cars is no longer an option. Customers expect continuous connectivity Governments will require them for better safety Enhanced customer service Brand differentiation Page 2

3 Connected Car Applications Telematics Infotainment ADAS FOTA Updates Vehicle Tracking Fleet Management Insurance Services Navigation Vehicle Diagnostics Service Notifications/Recalls Battery State for EVs Safety (OnStar, ecall) Eco Driving Remote Lock/Unlock Broadcast/Internet Radio News/Sports/Business Digital TV Streaming Music Services Live Traffic Updates Weather Updates Social Networking Web Browsing Smartphone Connectivity Gaming Retail Opportunities 3 rd Party Apps (Park Assist) V2V, V2I, V2X Emergency Brake Assist(EBA) Adaptive Cruise Control (ACC) Surround View (360deg) Blind Spot Detection (BSD) Rear Cross Traffic Alert Lane Departure Warning (LDW) Lane Keeping System (LKS) Traffic Sign Recognition (TSR) Intelligent Headlights Auto Emergency Braking (AEB) Page

4 The Challenge Facing the Automotive Industry Over 220M Connected Cars on the Road by 2020! - Complex wireless environment - Interoperability - Changing regulations - Demanding customers - Increasing customisation - Fierce competition - Safety needs to be the priority Page 4

5 Wireless Technologies Used by Connected Cars DUT Rx Device under Test (DUT) DUT Tx Page 5

6 Verify Performance of Wireless Technologies Design with confidence and scale up quickly for manufacturing Cellular LTE/LTE-A FDD/TDD W-CDMA, HSPA, HSPA+ GSM/EDGE/EDGE Evo TD-SCDMA CDMA2k 1xEv-DO DECT High Performance Reduce Development Time Wireless connectivity a/b/g/j/p/n/ac/ah/af Bluetooth 1.0 to 4.2 Mobile WiMAX g Streamline Compliance Testing Others Multi-Satellite GNSS Digital video, FM Custom Modulation True / Switched MIMO Real-Time Spectrum Analysis Stimulus/Response with Tracking Generator EMC Radar Compress Test System Size Flexible & Customizable Benchtop Debug with VSA Signal Studio One-button X-Apps Modular PXI / Onebox Tester Measurement integrity that ensures accurate, consistent results from R&D to Manufacturing Page 6

7 Test Throughout the Product Lifecycle Each Phase has Unique Test Requirements Product Development Design Validation Production Test Design/develop device with desired parameters. Leading edge technology features Meet / exceed the specs Ensure device will work in a variety of user environments. Scenario / Performance / Life Time Testing Test Setup Flexibility Verify that no manufacturing defects are present. Maximize Yield with low cost per device High Throughput Need for Common Test Tools TIME and to MARKET consistent Measurement Methods??? Page 7

8 Interference and Interoperability Test Frequency and Technology Overlap 2G UMTS LTE LTE unlicensed 4.5 G (LTE+Wifi) MHz Bluetooth a/b/g/n/ac ah (CEN DSRC) p ITS-G5A/B p /1609.x GPS/Glonass etc Zigbee Thread WirelessHART ISA100.11a Z-Wave Wireless M-Bus ANT+ Page 8

9 Physical Layer Tests Avoid protocol overhead with DUT Test Modes Signal Source stimulus Common Transmitter Tests Common Receiver Tests Transmit Power Sensitivity Spectrum Mask Adjacent Channel Selectivity Modulation Accuracy Maximum Input Level Adjacent Channel Power Co-channel Rejection Spurious Emissions Intermodulation Immunity Application AWGN & Fading Channel Presentation Performance Session DUT Test Modes Transport Signal Analyzer response response Network Loop-back Data Link stimulus DUT Rx Physical Verify at Physical Layer to ensure maximum DUT Performance Make use of non-signaling test DUT Tx Page 9

10 Technology Specific Test Challenges Unique Test Requirements need to be addressed Technology Unique Test Challenge n/ac Wider bandwidth signals, multi-user MIMO, high data rates p Strict SEM requirements Bluetooth LE Must be tested under NOC and EOC NFC/EMV Stringent physical positioning requirements LTE-M Unique signaling protocols Page 10

11 Summmary Test Challenges 1. Verify performance of automotive wireless technologies 2. Test throughout the Product Lifecycle 3. Interference and Interoperability Tests 4. Reduce Costs - avoid signaling overhead Non Signaling Test 5. Technology Specific Tests Page 11

12 Addressing the Connected Car Test Challenges Example: WLAN p Page 12

13 WAVE, ITS, DSRC, V2X WLAN p p is an approved amendment to the to add wireless access in vehicular environments (WAVE, aka ITS, DSRC, V2X) Supports low latency, Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2X) communication Vehicle broadcasts its position and velocity and receives broadcasts of neighboring road users Uses channels of 10MHz bandwidth in the 5.9GHz band ( GHz) Developed based on a but targets for reliable connection and short latency USA, Europe, China, Japan, Korean and Singapore are working towards hard/soft mandate or MOU for dedicated short range communication (DSRC) installation Page 13

14 Power Classification & SEM Requirements p p CLASS A-D power classification p SEM for 10M signal BW For power CLASS A-D p 10 MHz SEM definition Source: IEEE Std TM Page 14

15 Test the p RF Tx and Rx Performance p Transmit Test Solution MXA supports p Product option MXA N9077A-2FP Full measurement result set - Transmit Power - Modulation Accuracy - Spectrum emission mask - Out of Band emissions p Receiver Test with MXG Signal Studio to generate p waveforms Support 5 MHz/10MHz/20MHz bandwidth Page 15

16 Test Throughout the p Product Lifecycle Product Development Design Validation Production Test Benchtop Modular Onebox Tester sharing common measurement software The best for unbounded test capability of RF Tx Rx Testing in Automotive Connected Car System Design & Verification Signal Generation & Waveform Creation Signal Analysis Page 16

17 Interference - View, Analyze, Demodulate Multiple Signals Simultaneously with VSA DUT p GSM LTE GNSS Page 17

18 Download and Playback Multiple Signals recorded / synthesized* with VSA on a Vector Signal Generator VSA p GSM LTE GNSS * Keysight Tools available for Signal Generation with VSA Page 18

19 802.11p Chipset Control Non Signaling Test Test Automation RF Test Equipment LAN control DUT RF Autotalks PANGEA4 based module Page 19

20 Technology Specific Test Challenges Real Time Fading Test Using MXG: p_27M 64QAM Fading mode ON WSAA RF Test Solutions, 9/24/2015 Page 20

21 Thank you! Page 21