|
|
|
Introduction and History |
|
Data in Wireless Cellular Systems: IMT-2000 |
|
Data in Wireless Local Area Networks |
|
Internet Protocols |
|
Routing and Ad-Hoc Networks |
|
TCP over Wireless Link |
|
Services and Service Discovery |
|
System Support for Mobile Applications |
|
|
|
|
|
|
|
next generation mobile communication systems
under development at ITU and ETSI (one of GSM study groups) |
|
European project is Universal Mobile
Telecommunication System (UMTS), while ITU project is called International
Mobile Telecommunications 2000 (IMT-2000), formerly known as Future Public
Land Mobile Telecommunication System (FPLMTS) |
|
time horizon: basic standards by 2000,
commercialization by 2005, “life” expectancy beyond 2025 |
|
mobile access part of future Broadband ISDN
network |
|
service objectives |
|
broad range of customizable telecommunication
services up to 2 Mbps, subset of B-ISDN |
|
support Universal Personal Telecommunications
(UPT), fixed network service for personal mobility, allowing registration
and deregistration at any terminal |
|
support wide range of terminal types |
|
|
|
|
|
|
|
|
support public and private environments |
|
operation in, and roaming between, different
operating environments |
|
sparse, rural, suburban, urban |
|
indoor/outdoor |
|
residential/business |
|
pedestrian/vehicular |
|
provide integrated satellite component |
|
combine range of existing wireless systems
(cellular, cordless, mobile data, paging) to share infrastructure costs and
harmonize services |
|
allow flexible and rapid creation of new
services |
|
efficient usage of spectrum resources |
|
enable provision of wireless local loop |
|
|
|
|
|
|
|
|
|
|
|
|
|
Vehicular: |
|
Bandwidth ³ 144 kbps, |
|
error rate £ 10-6 |
|
Outdoor to Indoor and Pedestrian: |
|
Bandwidth ³ 384 kbps, |
|
error rate £ 10-6 |
|
Indoor Office: |
|
Bandwidth ³ 2 Mbps, |
|
error rate £ 10-6 |
|
|
|
|
|
ITU-R TG 8/1: Radio |
|
spectrum allocation: at WARC-92, set aside
1885-2025 and 2110-2220 MHz bands worldwide for terrestrial &
satellite, lower band pretty much free in Europe and Japan, used in China
for CDMA and WLL, used in North America for PCS ...... |
|
satellite component |
|
technology evaluation & choice |
|
interface specification |
|
ITU-T SG 11 (lead), 2, 7, 13, 16: Network |
|
services, numbering, charging |
|
switching, signaling, protocols |
|
security |
|
operation & management |
|
performance |
|
|
|
|
|
Regional activities (North America, Europe, and
Asia/Pacific), submit standard proposals |
|
Each region has own unique history, existing
systems, etc., so likely outcome of IMT-2000 activities is a “family of
standards”, assuring air-interface and network standards interoperability |
|
Time schedule for radio specifications: |
|
February 1997: request for candidate radio
transmission technologies |
|
April 1998: cut-off for submissions to U.S. TG
8/1 |
|
July 1998: cut-off for submissions of candidate
proposal to ITU-R |
|
March 1999: TG 8/1 determines key
characteristics of IMT-2000 radio interface |
|
December 1999: TG 8/1 completes development of
radio interface specifications |
|
Notes