Transcript 03_hiromitsu_wakana

The ASIA-PACIFIC SEMINAR ON
NEXT GENERATION MOBILE COMMUNICATIONS 2005
(AP-NeGeMo’05)
Overview of New Generation
Mobile Network Project
WAKANA Hiromitsu, Ph. D.
Director
Yokosuka Radio Communications Research Center
National Institute of Information and Communications
Technology, NICT
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New Generation Mobile Network Project
Seamless and secure integration of various
wireless access networks
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System Beyond IMT-2000 Concept
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Strategy of New Generation Mobile Network Project
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Content
• New Generation Mobile Network Concept
• Main R&D Technology Targets
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Software Defined Radio Terminal
Broadband Wireless Access
Media Handover
Wireless Security Platform
• Testbed and Demonstration
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New Generation Mobile Network
MIRAI+
Internet
Metropolitan Ring Network
Mobile PAN
Mobile Ethernet
Secure Platform
Beyond 3G APs
Signaling
Advanced WLAN APs
Data
Software Defined Radio (SDR) Terminals
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3G APs
Toward Business
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Software Defined Radio Terminal
1st and 2nd Prototypes
1.5-1.9GHz
band Antenna
5.8GHz band
Antenna
Hand set
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First prototype (1999, left)
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PHS, ETC, GPS can be realized by changing software for digital signal processing hardware
PHS+ETC, GPS+ETC (Electrical Toll Collection system) can be realized simultaneously
The first prototype to realize actual consumer services in the world
Second prototype (2001, right)
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17.5 cm wide, 19.0 cm deep, and 5 cm high
Power supply DC-12.0v 2A, several FPGAs included
Software (GPS, VICS, ETC, Broadcasting (AM,FM),FM Multiple service) is prepared
Original multi-task algorithm and fast software download method are implemented
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Software Defined Radio Terminal
3rd Prototypes
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Display part
SDR processing part
Consists of general-purpose FPGA,
CPU, and RF boards.
Software modules for W-CDMA,
IEEE802.11a, digital TV and analog
TV are available.
SDR terminal can communicate
with commercially available WCDMA BTS and access points for
wireless LAN.
Based on mITRON.
Communication systems can be
changed manually or automatically.
Applications: video conference and
VoIP based voice communication.
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Beyond 3G Cellular & Hot Spot
• Realize 100 Mbps and above point-to-multipoint
communication in high mobility cellular environment.
• Realize 1 Gbps transmission in hot-spot environment.
• Adaptively change modulation schemes in both
cellular and hot-spot environment.
• Easy to divide PHY and MAC layer.
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DPC (Dynamic Parameter Controlled)-OF/TDMA
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TDMA frame
Slot (ACTS)
Slot (MDS)
Total number of subcarriers
Subchannel
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Preamble
Data
Uplink frame format
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AP
MS(A)
12 subchannel
MS(D) Physical layer equipment
MS(B)
MS(C)
1subchannel
2subchannel
6subchannel
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Metroplitan Mobile Ring Network
• Goal
– Develop large scale micro mobility support in metropolitan area.
• Feature
– Flat ring architecture for decentralizing routing information ( no
bottleneck nodes )
Throughput of ring
network
– L2 independent
1 Gbps
100,000 nodes registrations / LMA
• Achievements
Handover time 200ms
– Fast handoff implementation
– Performance evaluation
– Load balancing in extended
WLAN access points
Throughput of access
network
100 Mbps
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Metropolitan Mobile Ring Network
binding list MNa
MNb
IPa
IPb
IPx
CN
IPx IPa
MAP2
MAP1
Internet
IPx IPa
(IPb)
MNb
GW
MNa
(IPa)
MAP3
MAP4
(IPc)
MNc
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Fast Handoff Process
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MN moves from oAP to nAP
nAP sends FH notif to nLMA
nLMA sends FH req.
When oLMA receives FH req,
oLMA sends FH rep with MN’s IP
address and oLMA’s MAC
address.
• When nLMA receives FH rep,
nLMA registers MN’s IP and
MAC addresses to binding list.
• nLMA starts transmission MN’s
packet to MN.
(3) FH request [MAC=MACmn, IP=?]
binding list
(4) FH reply
[MAC=MACmn, IP=IPmn]
oLMA
nLMA
(2) FH notification
oAP
nAP
(1) Association
MN
FH request: MN’s MAC address
FH reply: MN’s IP and MAC addresses
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Cross-Network Services and
Mobility Support
• RAN-overlaid MIRAI
– Enables communications using the optimal wireless system based on user presence,
preferences, and network status.
– Separates “data paths” and “signaling path” (any radio network can be chosen for
the signaling path).
– Conserves power by switching off all unused RAN interfaces
Presence
Call button
- Video phone
- Voice phone
- Voice mail
Network Functions
-Basic Access Signaling
-Mobile IP Home Agent
-SIP Proxy
Home Network
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WLAN
Handover from
WLAN to 3G
Main Window
Home Network
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The Internet
3G
WLAN
PHS
2G
WLAN
Handover from
PHS to WLAN
Data path
Network Status
-hot: available
-cold: not available
-BAN: signaling network
-RAN: data network
Personal
Information Window
Video phone
Voice phone
MUT-A
Partner
Information Window
MUT Prototype
(Multi-service User Terminal)
Available Networks
Signaling path
- Ethernet
- WLAN (11a / 11b)
- 3G (WCDMA)
- 2G (cdmaOne / PDC)
- PHS (AirH” / @FreeD)
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Video phone
Voice phone
MUT-B
Cross-Device Seamless Service Support
• Service mobility proxy
– Provides flexible services by discovering and utilizing available networks,
devices, and services based on the user’s context and location
– Provides cross-device
Service mobility
handover
CN
proxy
– Not reliant on target
applications
Search, discovery, and
authentication of nearby services
NetSpeaker
User terminal
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Smart Space for
Context-Aware Mobile Services
Sensor nodes
Bluetooth
AccessGrid & DVTS/IP
WLAN
Location and
Communication
Manager
RFID
Networked devices
WLAN
Floor sensors
Bluetooth
Context-aware Services
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RFID
PHS
Mobile Ethernet
• Mobile Ethernet is a 3rd phase evolution from 3G network
using L2 technologies. It allows to plug-in various kinds of
radio systems, such as 3G, 4G, and WLANs, following a
common MAC interface, network authentication framework
and DoS resilient wireless security protocol.
Mobile Ethernet
Segment
Router
Gateway
Switch
Edge Switch
3G AP
Internet
WLAN AP
Mobile Device
IEEE802MAC Interface
4G AP
Correspondent Node
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Radio
Access
Technologies
Secure Service Platform
• Unified network/service security framework
• Self-delegation of user’s certificate from smartcard to mobile device
Electric Shop
Personalize mobile device with
personal information stored in
contact-less smartcard
off-the-shelf
device
Mutual Device
Authentication
Contact-less
Smartcard
Delegate User’s
Certificate
Smartcard
Buy mobile device
independent of
network operator
Service Provider
User authentication
using biometrics
sweep
MD
Consistent authentication for
various wireless access networks
and for e-commerce services
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Proactive Network Authentication
• Core network operator is different from wireless access
operators, so user information is kept in the core network
Authentication information
for mutual authentication
Authentication
Server
Authentication
Information Server
Security context transfer
Core network
Radio systems
Entry Point
Data security,
Access control
Mutual
authentication
Mobile Device
Handover
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Application Scenario – Audio Visual Chat
• Seamless vertical/horizontal handover with QoS control for
wireless load-balancing and mobility support
WLAN APs are freely
installed around
Shibuya station
Seamless horizontal handover
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Application Scenario – E-commerce
• Unified network/service security framework for flexible wireless
configuration
• Contact-less certificate delegation from user’s smartcard to a mobile
device for ease-of-use
Service
Provider
Mobile Ethernet
Network/Service
Authentication
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Application Scenario –Emergency Medical Services
Emergency call by mobile phone with
video-recording function
Hospital
At the same time,
medical record is
made to store
the data in the
hospital.
Based on the video with the
emergency call and data from the
ambulance, the hospital may
instruct proper treatment or
prepare for a surgery.
Injury or health
condition can be
recorded on the
scene by handset
to send an
accurate picture
to paramedics.
11Mb/s
54Mb/s
High-definition stillimage data etc.
may be transmitted
High-definition
video data etc. may
be transmitted.
384kb/s
Fire Station
Once the ambulance enters wireless LAN
coverage, the stored data may be
transmitted to the hospital.
On the ambulance, a patient’s
data is constantly recorded,
including pulse rate, heart rate,
electrocardiogram, blood
pressure, condition (video)
and injured part (video), etc.
to be stored in the on-board
server.
Of all the stored data, pulse rate and any
other data of greater urgency is constantly
transmitted by W-CDMA to the hospital.
Outside wireless LAN area
Inside wireless LAN area
IEEE802.11b
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Inside wireless LAN area
HiSWANａ/IEEE802.11a
Application Scenario – Disaster Management
government
organizations
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visible light
and infra red
fire status
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moving
pictures
direct link to
satellite
network
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status of
deaths and
injured
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still
pictures
online video
transmission
collapsed
buildings
STATUS
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Ⅳ
database
electric poles
flood status
collapsed bridge
Disaster Management
Center
internet
present status
mobile terminal
flood
heli airplane
still picture
database
fire department
life line company
self-defense
Mobile Terminal
Digital TV Broadcasting
Concept of Disaster Management System
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Communication (Req)
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Testbed in Yokosuka Research Park
Yokosuka Research Park
Panasonic Mobile Inc.
This area
Fujitsu Inc.
実験ハウス
YRP#2
YRP#1
Digital TV broadcasting
antenna
Caféteria #2
Monitoring
camera
NICT
Labo in 7F
We are hereLabo in 3F
Utility pole attached with a
transceiver
Cafeteria #1
Bus route
Monitoring
camera
20m
Car Parking Area, where utilitiy
poles were installed.
150m
Type
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To Nobi railway station
Type
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Optical fiber links
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Summary
• NICT’s Yokosuka Radio Communications Research Center
started the Next Generation Mobile Network Project in April
2002.
• The target f this project is the development of new
technologies to enable seamless and secure integration of
various wireless access networks such as 3G and 4G cellular,
wireless LAN, Bluetooth, fixed wireless access (FWA) and
intelligent transport system (ITS).
• A testbed for evaluating new technologies and promoting new
applications has been established in the Yokosuka Research
Park.
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