Global Multimedia Mobility, past,
present, future
- Towards Mobile Multimedia 26/04/2001
Hiroshi NAKAMURA
DoCoMo Europe S.A.
Evolution toward IMT2000 and Beyond
’80S
Voice Oriented
’90S
Voice
Low Speed Data
Up to 64 kbps
1G
2G
2000S
Voice
High Speed Data
Up to 384k/2M bps
IMT-2000
Voice
High Speed Data
Up to 20M bps
Beyond IMT-2000
(3G)
FDMA
TDMA
?
Past
Future
Present
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Mobility - Past
Expansion of service area by one number
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Expansion of service area by one number
(1) Paging
within one radio zone
Mobility
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Expansion of service area by one number
(1) Paging
within one radio zone
HLR
(2) Location Registration
within one network
All Rights Reserved,Mobility
Copyright © NTT DoCoMo
Expansion of service area by one number
Visited NW
(1) Paging
within one radio zone
VLR
HLR
(2) Location Registration
within one network
(3) Roaming
among networks
Mobility
All
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Mobility - Present
Expansion to Service Portability (VHE)
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VHE (Virtual Home Environment) : Service portability between networks
User can enjoy the same services of home network while roaming
Home NW
Visited NW
VLR
Service control
from Home NW SCP (IN)
SCP
HLR
Mobility + Service portabilityAll Rights Reserved, Copyright © NTT DoCoMo
Mobility to the Future
Flexible and High Efficient Mobility Management
Much more freedom for Mobility
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Requirements for Beyond IMT-2000
(2)Advanced Mobility Management
Unique Mobility Management for All Mobile Terminals
Diversified, Flexible and High Efficient
Mobility Management
Mobile Telecommunication
Location Registration(HLR-VLR)
Paging,
Handover
Internet
Mobile IP (HA-FA)
Cellular IP, Hawaii
Mobility Control Layer & Transport (Routing) Layer
Separated
Unified
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Study on Location Management
Paging
more precise
0
diversified
Max
No Location Update
Max
0
No Paging
Location Update
2G / 3G (unique)
Diversified area configuration dependent on
moving characteristics
Diversified area design suitable for geographical structure
Concatenation for many terminals moving as a group
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Concatenated Location Management
Base
station
Mobile terminals register
locations individually.
Location registration area B
Location registration area A
Base
station
Location registration area C
(a) Conventional location registration
Vehicle registers location
for all mobile terminals.
Base
station
Location registration area A
Base
station
Base
station
Registration of
persons to vehicle
Location registration area B
Base
station
Registration of vehicle
Location registration area C
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(b) Concatenated location registration
Requirements for Beyond IMT-2000
- Much more freedom for Mobility Video Conf. Server
Contents
Large screen ｷ high
sound quality
Device Seamless
Small screen ｷ low sound
quality
Video Conf. Client Visual Phone+Headset
Small screenｷ text
+ pen
Large screenｷ high
sound quality
Visual Phone+TV
NW Seamless
WLAN
ad-hoc NW
Cellular
WLAN
Remote Controller
room
indoor
outdoor
branch office
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Seamless service support
News
Video
Applications
Service support layer
Location
Information
Server
Instruction of media
conversion
Media
Converter
(2)Media conversion from
Video to Text
(1)
Identification of service
environment class “Vehicle” by
location information
Location
update
IP-based transport NW
IP
IP
IP
IP
Radio
IP
Radio
IP
Radio
IP
News
Text
News
Video
move
Text for
comments
1
4
7
*
Office
2
5
8
0
3
6
9
#
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Vehicle
Copyright © NTT DoCoMo