network concept of operations november 9, 2007 its world congress demo subcommittee meeting...

Network Concept of Operations

November 9, 2007

ITS World Congress Demo Subcommittee Meeting

Presented by

Justin [email protected]+1.760.438.5115 x175

http://www.technocom-wireless.com/mobility_solutions.html

mailto:[email protected]

November 9, 2007 ITS World Congress Demo Subcommittee Meeting

Agenda

• System Architecture Definition

• Data Communication Options

• Application Breakdown

• Schedule

• Further Discussions


System Architecture

OBE(SWRI, Navteq,

OEMs)

RSE(TechnoCom)

Application Host/Server

(any demo participants)

USDOT POC TI Application (Booz Allen)

DSRC (WSM or IPv6) Ethernet (IPv4)

Signal Controller

(State/City DOT)

Ethernet Crossover (IPv4)

SDN(optional)

IPv4 Backhaul Network

(NYCWiN/NYSDOT)


RSE Architecture/Interfacing

RSE

IPv6 to IPv4 Port Forwarding

WAVE Short Message Proxy and Store and

Forward

Application Registration

Manager (web server hosted)

USDOT POC TI Application

(Remote)

Web Client

(remote config)

Application Servers (remote)

Signal Controller

(Local)


Data Communications

• WAVE Short Message Protocol (WSMP)– Used for broadcast applications and basic

requests from OBE to RSE– IPv4 based proxy and store and forward

interface to back haul

• IPv6 Network Based Applications– Used for applications requiring two-way data

exchange– IPv4 port forwarding to back haul


WSMP• Proxy (UDP based)

– “Repeating” of a WAVE Short Message received from back haul over the DSRC air interface (e.g. Signal Phase and Timing information)

• WSMP payload encapsulated in a UDP datagram from back haul• WSMP payload transferred to WSM data bearer for transmission

over the DSRC link– Forwarding of WAVE Short Messages received from OBEs

across back haul– IPv4 port mapped to Provider Service ID

• Store and Forward (replay)– For transmitting of static or pseudo static information (e.g.

Signing, Travel Time info, Geometric Intersection Description)– Message uploaded (file transfer based) as often as data

changes


IPv6

• DSRC Link– Provider Service ID identifies application

• Announced periodically (every 100 ms)• UDP or TCP port number indicated in announcement

– All OBE transmit to RSE IPv6 address with the appropriate port number

• Back Haul– Port forwarding to host/server– E.g. port 7001 maps to 192.168.x.x:5001 on backhaul

network


Application Breakdown• WSMP

– Travel Times– Signal Timing

Information/Traffic Signal Preemption

– Incident/Construction Information

– Work Zone Safety Notification

– Curve Speed Warning Notification

– Vehicle Restrictions– GPS Corrections

• IPv6– Route Guidance– Parking Availability and

Real-Time parking reservations

– Arterial Traffic Data– Advertising and Mobile

Commerce– Electronic Toll Collection/

Congestion Pricing– Truck Inspection Clearance– Probe Data Collection


High Level Schedule

• Need individual application teams to publish their detailed schedules

• Need to establish procedural approach for network access– PSID assignments, IP address/port assignments, remote server

connections, etc.

January Feburary March April May June July August SeptemberOctober NovemberRSE InstallationBackhaul Network ProvisioningNetwork & RSE IntegrationApply for Application Access to NetworkApplication DevelopmentIndidual Application Testing & IntegrationIntegrated Application TestingDemo system freezeDemonstrations


Discussion

• General discussion regarding Booz Allen Hamilton TI application (Ram)– Expand use beyond TI

• Individual applications (Jeremy, Jules, Linus, etc.)– Draft concept of operations received for ETC,

Travel Information, Parking, CICAS, Signal Priority/Preemption, General Signing Apps

network concept of operations november 9, 2007 its world congress demo subcommittee meeting...

Documents

application access

haulipv4 port

twoway data exchangeipv4

network accesspsid assignments

tcp port number

signal phase

broadcast applications

signal prioritypreemption