TETRA Data Services Including (Internet) IP Packet Data Access
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Transcript of TETRA Data Services Including (Internet) IP Packet Data Access
TETRA Data ServicesIncluding (Internet) IP Packet
Data AccessOle Arrhenius
Nokia
Agenda
• Wireless data in TETRA
• Applications using different TETRA data services
• WAP
TETRA data standards
Bearer services = data transport:
- packet, circuit, single/multislot
Peripheral Equipment Interface (PEI)
TETRA voice + data
TETRA Packet Data Optimised (PDO)
TETRA data services
Status
SDS 1, 2, 3, TL
TETRA-IP
• 16 bits of information
• Individual and group addressing
• Standardized values and free values for applications
• Individual and group addressing
• Application use and text messaging
• 1=16, 2=32, 3=64, TL=1017 and 2048 bits
• Internet Protocol
• Standard TCP/IP (UDP) protocol layer for applications
Data services for different needs
SDS 1 and StatusSDS 1 and Status
SDS-TLSDS-TL
TETRA IPTETRA IP
Small amount of data
Great amount of data
Rarely
Often
SDS 2,3SDS 2,3
Wireless data applicationsWorkforce managementUnit status, AVL
Instructions
Information retrieval, inquiriesTask related information
IdentityVehicles, weapons,
fingerprintsMaps
ReportingTask course and operations
Control and monitoring
Alarm devicesEnvironmental measurements
Field equipment telemetry
Surveillance videoStill/video image
Portable usersVehicle users
Fixed equipment
Control roomsIT systemsDatabases
Data networksInstrumentatio
n
Crew 1: "At substation 12"Crew 2: "Free"Crew 3: "Lunch"
TETRA network
Status messaging
• Remarkable savings in routine voice communication
• Improved workforce managementStatus
message
SDS
C&CR Application
C&CR Application
ApplicationApplication
Short Data Service (SDS) work orders and reporting
• Convenient, accurate and efficient communication
• Suitable for Short Data (SDS) messaging.
PEI
SDS
SDS
SDS
ApplicationApplicationSDS
DispatcherApplicationDispatcherApplication
TETRA network
Short Data Service (SDS)Automatic Vehicle Location (AVL)
• AVL information is transferred with SDS messages
Packet data gives benefits of Internet Protocol and TCP/IP
• Shared use of the radio transmission path
• Suitable for bursty traffic• Connectivity to the surrounding IT
environment - the entire www technology
• Support for standard products and applications
WWW
Database
WAP
FTP
Tetra network
Backbone/transmissionInternet
Control RoomIntranet
Company Intranet
EnterpriseIntranet
Application
ApplicationApplicationTETRA IP packet data
IPDistribution
Core
Data access with TETRA IP
database interrogation
Intranet
Intranet
Intranet
DatabaseEnquiry
Info
Full A4 page report1700 characters = 6.8 s
Detailed text report700 characters = 2.8 s
Text report + passport photo= 2.8 s + 4 s = 6.8 s
TETRA IP transmission speed• Data amounts in
professional work are quite small
• In real life, the transmission speed is faster than a human can read or write
• Remember, fast start-up time
Image transmission• Still images or short video clips• Compression methods are effective:
JPEG, JPEG2000, MPEG4, MVQ• site of an accident, common view• vehicle damages• control of driving style, incorrect
overtaking• incorrect loading• place of crime, common view
Image
Original
Compressed15 seconds
Patient monitoring unit for use in emergency care in mobile
environment• Transferring patient related
data to the hospital from mobile unit
• Measurement of vital signs of the human body
• Nursing history by mobility
• 12 channel ECG monitored data
• Oxygen saturation
• Blood pressure
• Pulse
Dangerous goods
• All dangerous goods have their own unique number based on UN numbering system that is used worldwide
• All information in standard format • trade name• prohibited area• potent of goods
TETRA in WAP Forum• WAP adaptation initiative to TETRA April 1999 • TETRA was included in WAP v1.2 Dec 1999• WAP is adapted to TETRA IP and SDS bearers
SDS Gateway
WAP Server
SDS
IP
WAP=Wireless Application Protocol
ApplicationWAP Server
Professional TETRA WAP applications
• WAP traffic data transaction amounts are quite small (200-500 Bytes), high air interface capacity not needed
• WAP needs rapid data service
• WAP also provides security layer
TerminalsTerminals
WAP optimizes air interface
TETRA SDS and IP
Operator/Service/Content providers
API products and WAP Server
NetworkAPI
ConnectivityApplications Content
TETRA !
Optimisation with WAP
Select Exit
Services
Select
Exit
BookmarksHomeHelpSettings
Select
Exit
PersonsStreetsVehiclesChemicals
Select
Exit
StreetsVehiclesChemicals
Persons
Select
Exit
VehiclesChemicals
PersonsStreets
Retrieving Cancel
Connecting to
Select Services
Enter Register numberSelect Query
Response appears
Select Bookmarks
Select Vehicles
AuthenticationLogin
Password:
Enter user id andpasswordUser id: jsmith
Login
Password:
Enter user id andpasswordUser id: jsmith
******
Retrieving Cancel
Connecting to
Query Back
Regist. #
- - - Vehicles - - -
MGI112
Retrieving Cancel
Connecting to
Select Exit
Type: Escort 1998 Red sedanStatus: Stolen
Owner: Jack Swift- - - Vehicle MGI-112 - - -
Address: Stone Road 35 04620 Oblow
• Optimises user interface for mobile display/keyboard • Optimises radio path usage• Provides standard Wireless Markup Language
Voice mail and unified messaging solution• Unified messaging: voice mail, fax and email
all in one solution
• Similar voice mail solution as in cellular networks
• Mailbox access via WAP and internet
Unified Messaging Center
WAP
emailvoicemail
fax
Intranet
Internet
PABX
PSTN
WAP interoperability is assured
• Interoperability is about:• clear specifications• developer guidance and education• a reference pool of products• covers all components
• Certification process already in place (March 2000)
WAP summary• WAP is a tool to access information• PSS and professional organizations already
have database content• TETRA IP and SDS are optimal bearers for WAP• No need for any upgrading in WAP terminals
when new applications are taken in to use• WAP includes security layer
TETRA data makes it easy for the application industry
• Commonly used network interfaces like IP
• MS Windows application Programming Interfaces (API)
• Different gateways bring the existing applications visible over TETRA
Conclusions for TETRA data
• Data is there for the professional radio users
• Data is fast because of rapid call setup times
• Brings Internet/Intranet and WAP access to mobile workforce