Page

Agenda

2016 Connected

Car Seminar 1

Time Module Topics Covered

9:30 – 11:00 Wireless Technologies that Enable

the Connected Car

Cellular, Wifi, Automotive Radar,

BlueTooth, GNSS, NFC,

WPC/TPS/RKE

11:00 – 12:00 V2X: Car-to-X Communication

(802.11 and LTE-V)

V2X: Car-to-X Communication

(802.11p and LTE-V)

12:00 – 1:00 Lunch / Product Fair

1:00 - 2:30 Wireless Applications for the

Connected Car

VoLTE, Virtual Drive Test, User

Experience, 5G, IoT

2:30 – 3:00 TDR/BroadR

3:00 - 3:15 Wrap-up and Drawing

V2X: Car-to-X Communication

Page

2016 Connected

Car Seminar 3

tThe ‘Connected Car’A Swarm of Sensors

Page

Connecting the Car

Automotive Wireless Technologies• Cellular

• 5G

• LTE-Advanced, LTE FDD/TDD

• HSPA+, W-CDMA, 1xEV-DO

• GSM/EDGE/EDGE, CDMA, TD-SCDMA

• Wireless connectivity

• 802.11a/b/g/n/ac/p

• Bluetooth up to Ver. 4.2

• Near Field Communication (NFC) / EMVC

• GNSS

• GPS, Galileo, GLONASS, Beidou, SBAS, QZSS

• Broadcasting and Wireless Charging

• Digital video

• Broadcast Radio: DAB, Sirius/XM, FM radio,

ISDBTmm

• Qi, Rezence

2016 Connected

Car Seminar 4

Page 5

Connected Car Environment

2016 Connected Car

Seminar

Page

IEEE 802.11 standards, amendments & recommendations

2016 Connected

Car Seminar 6

Page

V2X - DSRC – WAVE - ITS

2016 Connected

Car Seminar 7

Page

V2X / Wireless Access for Vehicle Environment

– 802.11p is an approved amendment to the 802.11 to add wireless

access in vehicular environments (WAVE, aka ITS, DSRC, V2X)

– Application: communications between vehicles and infrastructure

(V2I) or vehicle to vehicle (V2V) etc. V2X

Vehicle safety services

Commerce transactions via cars

Toll collection

Traffic management

8

Based on 802.11

2016 Connected

Car Seminar

Page

DSRC Channel Plan

9

5850-

5855

Reserve

5 MHz

CH 172

Service

10 MHz

CH 174

Service

10 MHz

CH 176

Service

10 MHz

CH 178

Control

10 MHz

CH 180

Service

10 MHz

CH 182

Service

10 MHz

CH 184

Service

10 MHz

CH 175

20 MHz

CH 181

20 MHz

5925 MHz5850 MHz

Reference document: https://mentor.ieee.org/802.11/dcn/13/11-13-0541-01-0wng-dsrc-

applications-tutorial.pptx

US & Eu ITS/DSRC Channel Plan One 5MHz reserve and Seven 10 MHz channels from 5.85 to 5.925GHz

Eu ITS/DSRC Channel Plan Seven 10 MHz channels from 5.855 to 5.925GHz

Japan ITS/DSRC Channel Plan Only one 10 MHz channel in the 700 MHz band

2016 Connected

Car Seminar

Page

The PHY difference between 802.11a and 802.11p

10

Feature 802.11a 802.11p

Bit rate (Mbit/s) 6, 9, 12, 18, 24, 36,

48, 54

3, 4.5, 6, 9, 12, 18,

24, 27

Channel bandwidth 20 MHz 10 MHz

FFT size 64 64

Data subcarriers / pilots 52 / 4 52 / 4

Subcarrier spacing 312.5 KHz 156.25kHz

OFDM symbol duration 4us 8 us

Guard interval 0.8us 1.6 μs

Preamble duration 16us 32us

Modulation types BPSK, QPSK, 16QAM, 64QAM

Coding rates 1/2, 2/3, 3/4

2016 Connected

Car Seminar

Page

802.11p Physical Measurement

11

Transmitter TestTransmitter Test 802.11a

IEEE-2012802.11pIEEE-2012

Transmitter Power 19.4.8.2 IEEE 802.11: Annex D2.3;

USA: Annex D Table2.2;

FCC: 47 CFR[B8] Sec. 90.375ETSI 302 571 Sec. 6.3

Spectrum Mask 18.3.9.3 IEEE 802.11: Annex D2.3

FCC: 47 CFR [B8] Sec. 95.377ETSI: 302571 Sec 6.4

Transmission spurious 18.3.9.4 Same as 802.11a

Center frequency tolerance 18.3.9.5 ±20 ppm for 20 MHz/10MHz±10 ppm for 5 MHz

Symbol clock frequency

tolerance

18.3.9.6 ±20 ppm for 20 MHz/10MHz

±10 ppm for 5 MHz

Center frequency leakage 18.3.9.7.2 Same to 802.11a

Spectral flatness 18.3.9.7.3 Same to 802.11a

Constellation error 18.3.9.7.4 Same to 802.11a

Modulation accuracy 18.3.9.8 Same to 802.11a

2016 Connected

Car Seminar

Page

802.11p Power Classification Class A-D and RF Transmitter Test Requirement - SEM

802.11p 10 MHz SEM definition

802.11p SEM for 10M signal BW

For power CLASS A-D

Source: IEEE Std 802.11 TM- 2012

802.11p CLASS A-D power classification

Power class Max. output power(dBm)

Class A 0

Class B 10

Class C 20

Class D 28.8

2016 Connected

Car Seminar 12

Page

Scenario Descriptions

13

Rural LOS:Intended primarily as a reference result, this channel

applies in very open environments where other

vehicles, buildings and large fences are absent.

Urban Approaching LOS:Two vehicles approaching each other in an Urban

setting with buildings nearby.

2016 Connected

Car Seminar

Page

Scenario Descriptions

14

Street Crossing NLOS:Two vehicles approaching an Urban blind intersection

with other traffic present. Buildings/fences present on

all corners.

Highway LOS:Two cars following each other on Multilane inter-region

roadways such as Autobahns. Signs, overpasses, hill-

sides and other traffic present.

Highway NLOS:As for Highway LOS but with occluding trucks present

between the vehicles.

2016 Connected

Car Seminar

Page

OSI v WAVE protocol stack

2016 Connected

Car Seminar 15

Page

Example V2X Safety Applications

2016 Connected

Car Seminar 16

Communications Between Vehicles

Approaching Emergency Vehicle Warning

Blind Spot Warning

Cooperative Adaptive Cruise Control

Cooperative Collision Warning

Cooperative Forward Collision Warning

Cooperative Vehicle-Highway Automation System

Emergency Electronic Brake Lights

Highway Merge Assistant

Lane Change Warning

Post-Crash Warning

Pre-Crash Sensing

Vehicle-Based Road Condition Warning

Vehicle-to-Vehicle Road Feature Notification

Visibility Enhancer

Wrong Way Driver Warning

Do Not Pass Warning

Intersection Movement Assist

Control Loss Warning

Communications Between Vehicle and

Infrastructure

Blind Merge Warning

Curve Speed Warning

Emergency Vehicle Signal Preemption

Highway/Rail Collision Warning

Intersection Collision Warning

In Vehicle Amber Alert

In-Vehicle Signage

Just-In-Time Repair Notification

Left Turn Assistant

Low Bridge Warning

Low Parking Structure Warning

Pedestrian Crossing Information at Intersection

Road Condition Warning

Safety Recall Notice

SOS Services

Stop Sign Movement Assistance

Stop Sign Violation Warning

Traffic Signal Violation Warning

Work Zone Warning

Page

IEEE1609

2016 Connected

Car Seminar 17

Page

Proposed Message Priorities

2016 Connected

Car Seminar 18

Page

Testing 802.11p TxSEM measurements

MXA and EXM support the

masks

• Defined in IEEE• FCC class A/B/C/D

• ETSI SEM requirement

2016 Connected

Car Seminar

Page

Typical DSRC Test Configuration

20

MXG/MXA

GPIB/LAN

2016 Connected

Car Seminar

• EVM

• Power

• Sensitivity

• SEM

• Fading

DSRC Module

Page

802.11p Automation Tool

21

Automated test for 802.11p

– Test Coverage

• Tx Power

• Spectral Flatness

• Constellation Error

• Symbol Clock Freq

Tolerance

• Tx Center Freq

Leakage

• Tx SEM

• Rx Min Input Sensitivity

2016 Connected

Car Seminar

Page

802.11p Automation Tool

2016 Connected

Car Seminar 22

Test Result (CSV)

p

Page

Demo of Autotalks PANGEA4 V2X module

– 802.11p one-button and sequence

analyzer measurement application

– 802.11p waveform generation

through Signal Studio

2016 Connected

Car Seminar 23

Page

Single Channel FadingWhat Problem Does It Solve?

Designers of mobile devices need to:

• Test the performance (FER/BER/BLER) of

their receivers under realistic channel

conditions

• Have accurate and repeatable results

• Do it at a reasonable price

+

N7605B Signal Studio

for Real-time Fading

MXG/EXG

2016 Connected

Car Seminar 24

Page

Real Time Fading Test

2016 Connected

Car Seminar 25

802.11p_27M 64QAM

Fading mode ON

(Profile 5)

Page 26

– 802.11p Transmit Test Solution

• MXA supports 802.11p

• Product option MXA N9077A-2FP

• Full measurement result set

- Transmit Power

- Modulation Accuracy

- Spectrum emission mask

- Out of Band emissions

– 802.11p Receiver Test with MXG

• Signal Studio to generate 802.11p waveforms

• Support 5 MHz/10MHz/20MHz bandwidth

802.11p RF Measurement – Design Verification System

2016 Connected

Car Seminar

Page 27

– 802.11p Transmit Test Solution

• EXM supports 802.11p

• Product option EXM V9077B-2FP

• Full measurement result set

- Transmit Power

- Modulation Accuracy

- Spectrum emission mask

– 802.11p Receiver Test

• Signal Studio to generate 802.11p waveforms

• Support 5 MHz/10MHz/20MHz bandwidth

802.11p RF Measurement – Production Solution

2016 Connected

Car Seminar

Page

Just When Everything Was Getting Agreed …

2016 Connected

Car Seminar 28

https://www.itu.int/en/ITU-T/extcoop/cits/...201507.../S3P2-Yi-Shi.pdf

Page

2016 Connected

Car Seminar 29

The problems with …

Page

2016 Connected

Car Seminar 30

Page

2016 Connected

Car Seminar 31

Page

2016 Connected

Car Seminar 32

Page

Interference & Coexistence test: Popular Frequency Use Case

868 915779 920 2400 5800 MHz590026001600 1700

Zigbee

Thread

ISA100.11a

WirelessHART

Z-Wave

802.11a/b/g/n/ac

802.11ah

ANT+

Bluetooth

(CEN DSRC)

Wireless M-Bus

802.11p ITS-G5A/B

2G – UMTS – LTE

GPS/GLONASS etc.

802.11p /1609.x

LTE unlicensed

4.5 G (LTE+WiFi)

2016 Connected

Car Seminar 33

Page

14

41

40

13

61

32

12

81

24

12

0116

112

10

81

04

10

0

16

51

61

15

71

53

14

9

64

60

56

52

48

44

40

36IEEE channel #

20 MHz

40 MHz80 MHz

160 MHz

UNII-1 UNII-2A UNII-2C UNII-3

5250MHz

5350MHz

5470MHz

5725MHz

NEW

96

92

88

84

80

76

72

68

16

91

73

17

71

81

5825MHz

5925MHz

NEW

Currently available channels New channels

Potential new Wi-Fi channels in 5 GHz band

• 802.11n introduced 40 MHz channels• 802.11ac introducing 80 MHz and 160 MHz channels• UNI-2 (A, B, C): radar is primary, Dynamic Frequency Selection

(DFS) is required by Wi-Fi

UNII-2B UNII-4

2016 Connected

Car Seminar 34

Page

Interference & Coexistence test: View, Analyze, Demodulate Multiple Signals Simultaneously

DUT

EDGE

LTE

GSM

WCDMA

2016 Connected

Car Seminar 35

Page

Interference & Coexistence test: Download and Playback Multiple Signals recorded / synthesized*

VSA

EDGE

LTE

GSM

WCDMA

2016 Connected

Car Seminar 36

PageQuestions?

Thank you!

2016 Connected

Car Seminar 37

Page

Agenda

2016 Connected

Car Seminar 38

Time Module Topics Covered

9:30 – 11:00 Wireless Technologies that Enable

the Connected Car

Cellular, Wifi, Automotive Radar,

BlueTooth, GNSS, NFC,

WPC/TPS/RKE

11:00 – 12:00 V2X: Car-to-X Communication

(802.11 and LTE-V)

V2X: Car-to-X Communication

(802.11p and LTE-V)

12:00 – 1:00 Lunch / Product Fair

1:00 - 2:30 Wireless Applications for the

Connected Car

VoLTE, Virtual Drive Test, User

Experience, 5G, IoT

2:30 – 3:00 TDR/BroadR

3:00 - 3:15 Wrap-up and Drawing