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Vision of the ITU
-
R on
“Systems Beyond IMT
-
2000”

IEEE 802 MBWA ECSG

November 11
-
15, 2002

Kauai, Hawaii USA

C802m_ecsg 02/08

Outline


ITU
-
R Draft New Recommendation, “Vision
, framework

and overall objectives of the future development of IMT
-
2000

and systems beyond IMT
-
2000



Global growth of mobile and wireline subscribers


Illustration of capabilities of IMT
-
2000 and systems beyond IMT
-
2000


Communications relationships between devices
in the three domains


Future network of systems beyond IMT
-
2000 including a variety of potential
interworking access systems


Illustration of complementary access systems


Phases and expected timelines for future development of IMT
-
2000 and
systems beyond IMT
-
2000


ITU
-
R Preliminary Draft New Report, “Technology Trends”


Utilization of Spectrum


Access network and radio interfaces


Recommendations and Reports of ITU
-
R Working Party 8F


Future
Development of IMT
-
2000 and Systems Beyond IMT
-
2000


ITU
-
R Draft New Recommendation (DNR): Vision,
framework and overall objectives of future development of
IMT
-
2000 and systems beyond IMT
-
2000


Adopted at the 9
th

meeting of WP8F (October 2002)


Submitted for approval at the next meeting of ITU
-
R Study Group
8 (February 2003)


ITU
-
R Preliminary Draft New Report (PDNR): Technology
Trends


Scheduled for completion and adoption at the 11
th

meeting of
WP8F (October 2003)

Market Trends


Growing demand for mobile services


The number of mobile subscribers worldwide has increased from 215 million
in 1997 to 946

million (15.5% of global population) in 2001 as shown in
Figure 4
-
1
[1]
.


It is predicted that by the year 2010 there will be 1 700 million terrestrial
mobile subscribers worldwide.


Trends in services and applications


Users will expect a dynamic, continuing stream of new applications,
capabilities and services that are ubiquitous and available across a range of
devices using a single subscription and a

single identity (number or
address).


Multimedia traffic is increasing far more rapidly than speech, and will
increasingly dominate traffic flows. There will be a corresponding change
from predominantly circuit
-
switched to packet
-
based delivery.


________________


www.itu.int/ITU
-
D/ict/statistics



0
200
400
600
800
1000
1200
1400
1600
1800
1995
2000
2005
2010
Subscriptions worldwide (millions)
Mobile subscribers
Wireline
subscribers
Mobile Internet
Wireline
Internet
0
200
400
600
800
1000
1200
1400
1600
1800
1995
2000
2005
2010
Subscriptions worldwide (millions)
Mobile subscribers
Wireline
subscribers
Mobile Internet
Wireline
Internet
Global growth of mobile and wireline subscribers


denotes interconnection between systems via networks, which allo
ws
flexible use in any environment without making users aware of co
nstituent systems.
Dark shading indicates existing capabilities
, medium shading indicates enhancements to IMT
-
2000,
and the lighter shading indicates new capabilities of systems be
yond IMT
-
2000.
The degree of mobility as used in this figure is described as fo
llows: Low mobility covers pedestrian speed, and high
mobility covers high speed on highways or fast trains (60 km/h t
o ~250 km/h, or more).
IMT
-
2000
Mobility
Low
High
1
10
100
1000
New capabilities
of systems beyond
IMT
-
2000
Peak Useful Data Rate (Mb/s)
New
Mobile
Access
New Nomadic / Local
Area Wireless Access
Enhanced
IMT
-
2000
Enhancement
Systems beyond IMT
-
2000 will
encompass the capabilities of
previous systems
Dashed line indicates
that the exact data
rates associated
with
systems beyond IMT
-
2000
are not yet determined.
KEY:
Digital Broadcast Systems
Nomadic / Local Area Access Systems
denotes interconnection between systems via networks, which allo
ws
flexible use in any environment without making users aware of co
nstituent systems.
Dark shading indicates existing capabilities
, medium shading indicates enhancements to IMT
-
2000,
and the lighter shading indicates new capabilities of systems be
yond IMT
-
2000.
The degree of mobility as used in this figure is described as fo
llows: Low mobility covers pedestrian speed, and high
mobility covers high speed on highways or fast trains (60 km/h t
o ~250 km/h, or more).
IMT
-
2000
Mobility
Low
High
1
10
100
1000
New capabilities
of systems beyond
IMT
-
2000
Peak Useful Data Rate (Mb/s)
New
Mobile
Access
New Nomadic / Local
Area Wireless Access
Enhanced
IMT
-
2000
Enhancement
Systems beyond IMT
-
2000 will
encompass the capabilities of
previous systems
Dashed line indicates
that the exact data
rates associated
with
systems beyond IMT
-
2000
are not yet determined.
KEY:
Digital Broadcast Systems
Nomadic / Local Area Access Systems
Illustration of capabilities of IMT
-
2000 and
systems beyond IMT
-
2000

High Level Vision


Future development of IMT
-
2000


There will be a steady and continuous evolution of IMT
-
2000 to
support new applications, products and services.


New capabilities of systems beyond IMT
-
2000


There may be a requirement for a new wireless access
technology for the terrestrial component to complement the
enhanced IMT
-
2000 systems and the other radio

systems.


Need to support data rates of up to approximately 100 Mbit/s for
high mobility, such as mobile access


Need up to approximately 1 Gbit/s for low mobility such as
nomadic/local wireless access.

High Level Vision


Relationship of IMT
-
2000, systems beyond IMT
-
2000 and
other access systems:


Continuing to develop between different radio access and
communications systems, for example wireless PANs, LANs,
digital broadcast, and fixed wireless access.

New capabilities for systems beyond IMT
-
2000



It is anticipated that there will be a

requirement for a new radio access
technology or technologies at some point in the future to satisfy the
anticipated demands for higher bandwidth services.


Systems beyond IMT
-
2000 will:


Support a wide range of symmetrical, asymmetrical, and unidirectional services


Provide management of different quality of service levels to realize the underlying
objective of efficient transport of packet
-
based services.


In parallel, there will be an

increased penetration of nomadic and mobile
wireless access multimedia services.


The technologies, applications and services associated with systems beyond
IMT
-
2000 could well be radically different from the present, challenging the
perceptions of what may be considered viable by today's standards and going
beyond what can be achieved by the future enhancement of IMT
-
2000 working
with other radio systems.

Communications relationships between
devices
in the three domains


A similarity of services and applications across the different systems is
beneficial to users, and this has stimulated the current trend towards
convergence



The increasing prevalence of IP
-
based applications is a key driver for this
convergence and facilitates the establishment of relationships between
previously separate wireless platforms.


The formation of these relationships is distinct from the development of each
wireless access system, including IMT
-
2000;

Personal Area
Immediate Area
Wide Area
Personal Area
Personal Area
Immediate Area
Immediate Area
Wide Area
Wide Area
Future network of systems beyond IMT
-
2000 including a variety

of potential interworking access systems


IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short
Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IP
based
Core Network
Services and
applications
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short
Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
Packet
based
Core Network
Services and
applications
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short
Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IP
based
Core Network
Services and
applications
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
IMT
-
2000
WLAN
type
Cellular
2
nd
gen.
Short
Range
Connectivity
Wireline
xDSL
other
entities
Digital
Broadcast
download
channel
New
Radio
Interface
Packet
based
Core Network
Services and
applications
Future network of systems beyond IMT
-
2000 including
a variety of potential interworking access systems


Different radio access systems will be connected via flexible
core network
s, allowing individual users to be connected via a
variety of different access systems to the networks and services
he desires.


The interworking between these different access systems in
terms of horizontal and vertical handover and seamless service
provision with service negotiation including mobility, security
and QoS management will be a key requirement, which may be
handled in the core network or by suitable servers accessed via
the core network.


This "Optimally Connected Anywhere, Anytime" vision could be
realized by a network comprising a variety of interworking
access systems connected to a common packet
-
based core
network.


Illustration of complementary access systems


Distribution Layer
Cellular Layer
Fixed (Wired) Layer
Possible return channels
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Hot Spot" Layer
Personal Network Layer

full coverage

global access

full mobility

not necessarily
individual links

full coverage

global access

full mobility

not necessarily
individual links




full coverage
and "hot spots"

global roaming

full mobility

individual links

local coverage

"
hot spots"

global roaming

local mobility

individual links

local coverage

"
hot spots"


local mobility

individual links

short range

global roaming

individual links

short range
communication

global roaming

individual links

personal mobility



global access
horizontal: handover within a system
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
vertical: handover between systems
Distribution Layer
Cellular Layer
Fixed (Wired) Layer
Possible return channels
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Hot Spot" Layer
Personal Network Layer

full coverage

global access

full mobility

not necessarily
individual links

full coverage

global access

full mobility

not necessarily
individual links

full coverage

global access

full mobility

not necessarily
individual links

full coverage

global access

full mobility

not necessarily
individual links




full coverage
and "hot spots"

global roaming

full mobility

individual links




full coverage
and "hot spots"

global roaming

full mobility

individual links

local coverage

"
hot spots"

global roaming

local mobility

individual links

local coverage

"
hot spots"


local mobility

individual links

local coverage

"
hot spots"

global roaming

local mobility

individual links

local coverage

"
hot spots"


local mobility

individual links

short range

global roaming

individual links

short range
communication

global roaming

individual links

short range

global roaming

individual links

short range
communication

global roaming

individual links

personal mobility



global access
horizontal: handover within a system
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
vertical: handover between systems
The enhanced IMT
-
2000 and the new mobile access of system
s

beyond IMT
-
2000 will be part of the
cellular layer and hot spot layer. Nomadic/local wireless access of systems beyond IMT
-
2000 will
be part of the

hot spot layer.


This figure illustrates a

flexible and scalable

environment which can

be used for the allocation

of system capacity in a

deployment area, where

one or several systems

may be deployed according

to need.

Timelines


Timelines for the future development of IMT
-
2000 and
systems beyond IMT
-
2000 depend on a number of factors:


market trends, requirements and user demands;


technical capabilities and technology developments;


standards development;


spectrum availability, including allowing sufficient time to re
-
locate
systems that may be using proposed bands;


regulatory considerations;


system (mobile and infrastructure) development and deployment
.


Phases and expected timelines for future development
of IMT
-
2000 and systems beyond IMT
-
2000


2000
New elements to
offer new
capabilities of
systems beyond
IMT
-
2000
IMT
-
2000
and Future
Development
Spectrum Implementation
2003
2006
2009
2012
2015
Systems
Deployment
Enhancement and Related
Development of Standards
Standards
Development
Vision
Definition
Requirements
Definition
Evolution /
Integration
with
other
Radio
Systems
Other
Radio
Systems
Systems Deployment
Spectrum Implementation
The sloped dotted lines indicate that the exact starting point o
f the particular subject can not yet be fixed.
:
Standards
Enhancement
2000
New elements to
offer new
capabilities of
systems beyond
IMT
-
2000
IMT
-
2000
and Future
Development
Spectrum Implementation
2003
2006
2009
2012
2015
Systems
Deployment
Enhancement and Related
Development of Standards
Standards
Development
Vision
Definition
Requirements
Definition
Evolution /
Integration
with
other
Radio
Systems
Other
Radio
Systems
Systems Deployment
Spectrum Implementation
:
Spectrum identification assuming that WRC03 approves WRC06 agend
a and WRC06 identifies the spectrum
Standards
Enhancement
2000
New elements to
offer new
capabilities of
systems beyond
IMT
-
2000
IMT
-
2000
and Future
Development
Spectrum Implementation
2003
2006
2009
2012
2015
Systems
Deployment
Enhancement and Related
Development of Standards
Standards
Development
Vision
Definition
Requirements
Definition
Evolution /
Integration
with
other
Radio
Systems
Other
Radio
Systems
Systems Deployment
Spectrum Implementation
The sloped dotted lines indicate that the exact starting point o
f the particular subject can not yet be fixed.
:
Standards
Enhancement
2000
New elements to
offer new
capabilities of
systems beyond
IMT
-
2000
IMT
-
2000
and Future
Development
Spectrum Implementation
2003
2006
2009
2012
2015
Systems
Deployment
Enhancement and Related
Development of Standards
Standards
Development
Vision
Definition
Requirements
Definition
Evolution /
Integration
with
other
Radio
Systems
Other
Radio
Systems
Systems Deployment
Spectrum Implementation
:
Spectrum identification assuming that WRC03 approves WRC06 agend
a and WRC06 identifies the spectrum
Standards
Enhancement
Recommendations


Standardization


that detailed standardization of the radio interface(s) should take
into account the frequency band(s) in which it is intended to be
used;


that global and open standardization of the radio interface
specifications should continue in the future to realize the benefits of
mass market and ensure inter
-
operable equipment so that users,
operators, manufacturers, etc. can continue to benefit from mobile
communications;



that the level and type of standardization should be adapted to
meet technical and market requirements at that time;


that standardization should be performed in a timely manner prior
to system deployment and should take into account the availability
of spectrum and market considerations;


Recommendations


Focus areas for further study



that research forums and other external
organizations wishing to contribute to the future
development of IMT
-
2000 and systems beyond
IMT
-
2000, are encouraged to focus especially in
the following key areas:


radio interface
(s)
;


access network related issues;


spectrum related issues;


traffic characteristics;


market estimations.


Working Document towards a Preliminary

Draft New Report


Technology

Trends


Utilization of spectrum


Technologies for improving bandwidth efficiency



Technology solutions to support traffic asymmetry



Advanced system innovations using enhanced TDD



Adaptive antenna concepts and key technical characteristics


Multiple input multiple output techniques



Working Document towards a Preliminary

Draft New Report


Technology

Trends


Access network and radio interfaces



Software
-
defined radios


High
data rate packet nodes


Internet technologies and support of internet protocol
applications over mobile systems


IP broadband wireless access


Radio on Fibre


IP broadband wireless access technologies