Telematics networks and wireless access technology
Hanbyeog Cho and Hyonseo Oh
Telematics Research Team
ETRI(Electronics and Telecommunications Research Institute)
161 Kajong-dong,Yusong-gu, Taejon, 305-350 KOREA
TEL: +82-42-860-5531
FAX: +82-42-860-6789
e-mail : hbcho@etri.re.kr
The real-time multimedia service based on the usefulness of the multimedia terminal and open
architecture in server technique such as GIS, LBS and traffic information, will be able to provide us
a pliability(flexibility) and an expandability through the development of contents based telematics
service.
At present, telematics service is based on 2G/3G cellular and IPv4 Internet Network. CDMA
cellular mobile communication, DSRC and wireless LAN technology are used mainly for the
construction of telematics network. But for advanced telematics service we expect to apply a next
generation cellular mobile communication technology such as HPi(High speed Portable Internet) or
the 4th generation cellular, and a DMB(digital multimedia broadcasting) technique. Then advanced
multimedia telematics service is based on the next generation cellular which is able to support up
to 100 Mbps transmision, open architecture of GIS/LBS server and IPv6 Internet Network to
increase the data transmission rate and to expand the IP address with the ubiquitous concept.
In this paper, analyzing main telematics services we introduce concept and features of next
generation telematics service. Based on the service requirements such as ubiquitous service, easy
user interface, low cost, various applications, we propose a standard next generation telematics
network system and discuss the radio access technique.
And we try to define the wireless in-vehicle networks using UWB technology.