Title: Research and Development on Wireless Testbed for Next Generation Mobile Seamless Communication Netwo
1Research and Development on Wireless Testbed for
Next Generation Mobile Seamless Communication
Networks
- Hiroshi Harada, Ph.D
- Yokosuka Radio Communications Research Center
- Communications Research Laboratory
- Independent Administrative Institution
2Outline of Presentation
- Overview of Investigative Committee
- Agenda and Outcome of Discussions of
Investigative Committee - Wireless Testbed Aimed at Seamless Communications
- Demonstrations of Wireless Testbed
- Future Prospect
- Introduction of YRP Ubiquitous Communication
Testbed (Utilization, Experiment and Research )
Forum
3Overview of Investigative Committee- Background -
Current Status(Laboratories)
Current Status(Market)
- Market saturated and concentrated.
- Number of mobile users fixed. Number of
terminals saturated. - Increase in wireless LAN, RF-ID users, etc,
- Study what type of business may come next
- Research results dispersed and lengthened.
- Want to study new systems, but what to start
with? - Due to fund shortage, joint research is an
option, but... - Need a framework for better collaboration and
less dispersion of results (centralized
management)
Tasks Ahead
WirelessTest Bed
Effortless, efficient, fast development of
advanced technology Swift availability of
internationally competitive data Creation of
new wireless business and employment Global
contribution via international joint projects
etc. Are there any solutions to satisfy above
requirements?
Current Status(Overseas Trend)
Current Status(Users)
- Research results dispersed and lengthened
- Need partners, but how can they be found?
- Due to fund shortage, joint research is an
option, but... - Need a framework for better international
collaboration and less dispersion of results
- Currently too many systems to use
- Users can discuss what type of terminal are
desirable - Fast development would be more than welcome.
- Wishing for an equipment for fast feasibility
study on systems of users request until
market introduction
4Overview of Investigative Committee- Demand for
Wireless Test Bed -
- Equipment for experimental tests of applications
to meet diverse needs for communication services - 2 Parts of Wireless Test Bed
- Test Bed Facility
- Network Infrastructure to be connected with Test
Bed Demo Systems, consisting of poles etc. on
which Ethernet, optic cable, basic switch,
router, radio, etc may be located. The more demo
systems are installed, the better will be the
facility. - Test Bed Demo Systems
- Technological verification system, and
technological demonstration system, consisting of
terminal, base station, network server,
application software, etc. The systems operate on
Test Bed (networks).
Regional Broadband Mobile Communications
Investigative Committee (2001-2002)
The Committee summarized technological
requirements etc. on Wireless Test Bed, created
a model environment for seamless communication
and other RD via Wireless Test Bed, and also
made demonstrations.
5Agenda and Outcome of Discussion of Investigative
Committee- Agenda on Wireless Test Bed -
- 5 Key Aspects Essential to Wireless Test Bed
- Required Functionality and Performance of
Wireless Test Bed - Technological Issues to Construct Wireless Test
Bed - Wireless Test Bed Service Models
- Wireless Test Bed Business and Management
- Form of Public and Private Partnership in Project
Operation - Examples of Project Operation
- Associated Projects on Wireless Test Bed
- Tasks on Wireless Test Bed
6Agenda and Outcome of Discussion of Investigative
Committee- 5 Key Aspects Essential to Test Bed
(1) -
- Inter-connectivity
- Inter-connectivity between the same wireless
systems to be ensured. - Functionality to test system instruments provided
by network venders, and networking technologies
for seamless communications via protocols and
location registration to be required. - Specific items to test 1) inter-connectivity
between wireless systems, 2) networking
technologies suitable to seamless communications
environment including user identification and
mobile management, 3) system instruments to
achieve network services. - Inter-connectivity between Different Systems
- Inter-connectivity between different wireless
systems to be ensured. - Functionality and an environment to test and
evaluate seamless communications between existing
broadband wireless systems, existing spot
wireless systems, and between a broadband
wireless system and a spot wireless system to be
required. - Specific items to test 1) inter-connectivity
(seamless implementation) between different
wireless systems, 2) inter-connectivity between
an existing system and an emerging system.
7Agenda and Outcome of Discussion of Investigative
Committee- 5 Key Aspects Essential to Test Bed
(2) -
- Application Business
- A contact to be required between wireless
environment to realize ubiquitous / seamless
implementation of wireless systems, and business
environment to create services via such
environment. - Specifically, development of roaming system,
authentication system, charge system, development
and evaluation of applications in presupposed
wireless and non-wireless networked environment,
and evaluation of multi-interface for various
wireless systems to provide applications
different in secured QoS including allocated
frequency band, price structure, and security
level. - Development of Terminals
- A facility is required to develop and evaluate in
real environment multifunctional terminals for
prospective ubiquitous and seamless
communications, and develop and evaluate in real
environment terminals for commercial wireless
systems. - Development of New Systems
- Considering future needs and progress of
embryonic RD, a facility is required to
evaluate in real environment new frequency bands
and new systems with difficult in installing
equipment, commercial-based next generation
system that requires multiple organizations for
standardization.
8Agenda and Outcome of Discussionof Investigative
Committee- Test Bed Service Models -
- Library-type
- You may check out what you like to borrow to use
on your own. (No intervention or guidance) - Legal Consulting-type
- You may consult for guidance in usage.
- Joint Work-type
- Shared use by companies who have a common
purpose. (mainly infrastructure users) - Workshop-type
- Shared use by companies who have a common
purpose. (mainly infrastructure builders) - Pyramid-type
- Top-down in policy and operation, like
governmental projects. - Global Contribution -type
- Test Bed personnel to be sent to back up emerging
systems under global discussion.
9Agenda and Outcome of Discussion of Investigative
Committee- Associated Business -
Demand for Associated Projects
Test Bed is based on benefit principle.
Therefore, associated business must be developed
on regular basis to increase beneficiaries,
which is necessary to maintain soundness in Test
Bed business.
Examples of Associated Business
- Test and Certification
- Tests of seamless communication for official
certification - Charge for tests and use of the facility as
business income. - Service Consultation
- Consultation for upper-layer services via
seamless connection. - Charge for consultation as business income.
- business Matching
- Introduction of start-ups and university labs
technologies to the industrial - sector for commercialization, and support in
preparation. - Charge for introduction and support as business
income. - Wireless TLO (Technology License Office)
- TLO specializing in wireless technology
- Commission as business income
10Outline of Presentation
- Overview of Investigative Committee
- Agenda and Outcome of Discussion of Investigative
Committee - Wireless Testbed Aimed at Seamless Communications
- Demonstration of Wireless Testbed
- Future Prospect
- Introduction of YRP Ubiquitous Communication
Testbed (Utilization, Experiment and Research )
Forum
11Wireless Test Bed Aimed at Seamless
Communications- Background -
12Wireless Test Bed Aimed at Seamless
Communications Background -
Multimode terminal
Broadcasting network
Wireless LAN network
Intelligent Transport Systems(ITS) network
Home network
Cellular phone network
The evaluation of a system requires existing
systems and emerging systems. Internationally
competitive data must be swiftly obtained.
Construction of Test Bed is effective for
evaluation.
13Outline of Presentation
- Overview of Investigative Committee
- Agenda and Outcome of Discussion of Investigative
Committee - Wireless Testbed Aimed at Seamless Communications
- Demonstration of Wireless Testbed
- Future Prospect
- Introduction of YRP Ubiquitous Communication
Testbed (Utilization, Experiment and Research )
Forum
14Demonstration of Wireless Testbed- Overview -
- Overview of Demonstrations
- Demonstration of Seamless Communications
- Connection technology for seamless communications
was used to continuously distribute broadband
contents via notebook PC or other terminals in
commercial network (FOMA, PHS) coverage and
wireless LAN spot areas. - Demonstration of Applications
- Multiplexed Distribution of Audio and Video
Content - Assuming possible operation in a large convention
site, co-axial cable multiplexed transmission
technology was used to compound low-latency,
video content broadcasting distribution and FM
audio broadcasting distribution for broadband
service. - High-Definition Video Transmission
- Wireless LAN system (HiSWANa) was used to
demonstrate video transmission. - Medical Information Transmission in Emergency
- Communications in emergency medical situation.
The video data of the scene, patients
electro-cardiogram, etc. was transmitted via
wireless LAN system (HiSWANa). - A scenario was made to carry out a series of
above demonstrations
15Demonstration of Wireless Testbed- Test Bed
Facility -
Optical fibers
Co-axial cables, partly with leakage
PMC
Fujitsu
YRP2
YRP 1
Cafeteria
CRL
7th Floor
Cafeteria
NTT DoCoMo
20m
150m
16Demonstration of Wireless Testbed- Test Bed
Facility (2) -
5GHz band (.11a)base station
5GHz band(HiSWANa)base station
2.4GHz band base station
Co-axial cables, partly with leakage
Optical fibers
17Demonstration of Seamless Communications-
Overview -
- 2 Demonstrations
- Seamless Communications A
- A test model of seamless switching while
maintaining session between different
communication systems. This time, the 3G mobile
phone (FOMA, NTT DoCoMo), IEEE802.11a, and .11b
were used outdoor. In the model, a terminal was
connected respectively with wireless LAN (micro
area) or wireless LAN (small area) hot spot in
each area, and, outside the coverage, with FOMA
to distribute video content to a terminal by
using Mobile IP technology. - Seamless Communications B
- A test model of seamless switching while
maintaining session between wireless LAN and PHS.
Mobile IP technology allowed content to be
continuously displayed while the terminal is
moving. CE.NET-compliant PDA was used in the
test. When media was switched, session was
disconnected. Yet, continued Internet access was
confirmed on PDA www browser.
18Demonstration of Seamless Communications-
Communication Area -
Optical fibers
5GHz band base sta.
FOMA area
2.4GHz band base sta.
5GHz band area.
2.4GHz band area
19Demonstration of Seamless Communications-
Network Architecture -
20Demonstration of Seamless Communications-
Operation of Seamless Communications, Mobile IP -
- Used in Seamless Communications A
- HA maintains the mapping of Home Address and
Mobile Address. IP packet sent to Home Address is
forwarded to Mobile Address. - MN registers Mobile Address assigned by each
network for Home Address, whenever a network is
switched to another. - Communication Procedure
- CN is communicating with MN via HA.
- MN moves from FOMA-area to W-LAN-area.
- MN registers the location, and Mobile Address
assigned by wireless LAN is registered for HA. - HA forwards the packet to the new Mobile Address.
HA
?location Registration
?Send to Home Address
?Forward to Mobile Address
R
R
R
BS
AP
?Switch
Wireless LAN
FOMA
Sender
MN
HA Home Agent MN Mobile Node CN
Corresponding Node R Router AP Access
Point BS Base Station
21Demonstration of Seamless Communications- Scenes
of Demonstration -
Inside the bus seamless communication is under
demonstration via PCs connected with wireless
LANs (.11a,11b) and FOMA.
The bus with on-board seamless communication
equipments
22Emergency Medical Communications- Overview -
- Arrived at a hospital, yet no doctors available
to take care of the patient. - The patient is in more serious condition than
most doctors can handle. - Miss choice of a hospital could cost patients
life.
Solutions
- Sophisticated broadband wireless transmission
may be used between an ambulance and a medical
service institution. - Two-way wireless communications may be used to
change the part to check or switch instruments,
according to the hospitals instructions. - A paramedic and a hospital may discuss to decide
the right hospital to take a patient based on
his/her electronic medical data.
Instrument to equip on Ambulance
- Electrocardiograph
- Supersonic waves meter
- Video camera to record a patients condition
- Video camera to show the location of the
ambulance
As the actual installationwill be large-scale,
feasibility may be studied via Test Bed.
23Emergency Medical Communications- Communication
Area -
Optical fibers
5GHz band base station
5GHz band area
24Emergency Medical Communications- Network
Architecture -
Wireless Mobile Station(5.03GHzAP)
YRP 1
5.03GHz outdoor wireless LAN ARIB STD-T70 (HiSWAN)
High-speed Optical fiber Network
Inside Ambulance
Wireless Mobile Station (5.03GHzMT)
100BASE
Data transmitted while moving
100BASE
CAMERA
100BASE
Converter Low-latency Video Encoding
HUB
Patient
100BASE
NTSC
MONITOR
Supersonic Wave Meter
Electrocardiograph
25Emergency Medical Communications- Scenes of
Demonstration -
Patients current medical data is collectedand
transmitted wirelessly real-timeto Information
Center. ( Lower Left Video of Supersonic
WavesUpper Right Electrocardiogram )
Ambulance with on-board high-speed wireless
transmission equipment
26Outline of Presentation
- Overview of Investigative Committee
- Agenda and Outcome of Discussion of Investigative
Committee - Wireless Testbed Aimed at Seamless Communications
- Demonstration of Wireless Testbed
- Future Prospect
- Introduction of YRP Ubiquitous Communication
Testbed (Utilization, Experiment and Research )
Forum
27Future Prospect- Applications to be
Substantiated -
For housing environment
For roaming environment
NW Network FC Facilities DS Demo system
For ITS
For medical services
Test BedDemo Systems
For new systems
For seamless service
Connection with Internet via ISP,JGN
Building, measurement devices
I/F with wired NWs
CRL,YRP,PFI Test Bed FC
NW simulator
broadcast NW
NW simulator? emulator
Street cellular NW
Cellular NW
Digital TV, Analog TV, CATV, Satellite TV
Hot spot NW
DSRC,MMW-ITS Base station, Terminal, Base station
simulator
PDC,PHS,W-CDMA,CDMA2000 Based station, Terminal,
Base station simulator
IEEE802.11, HiSWAN Base station, Terminal
28Future Prospect-Emergency Medical Services
viaSeamless Communications-
Hospital
At the same time, medical record is made to store
the data in the hospital.
Emergency call by mobile phone with
video-recording function
Based on the video with the emergency call and
data from theambulance, the hospital
mayinstruct proper treatment orprepare for a
surgery.
Injury or health condition can be recorded on the
scene by handset to send an accurate picture to
paramedics.
54Mb/s
11Mb/s
384kb/s
Once the ambulance enters wireless LANcoverage,
the stored data may betransmitted to the
hospital.
High-definition still-image data etc. may be
transmitted
High-definition video data etc. may be
transmitted.
Fire Station
On the ambulance, a patients 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 anyother
data of greater urgency is constantlytransmitted
by W-CDMA to the hospital.
Inside wireless LAN area HiSWANa/IEEE802.11a
Inside wireless LAN area IEEE802.11b
Outside wireless LAN area
29Future Prospect-Connection with Other Test Beds-
For mobile access environment
For AdHoc system
Europe
USA
For video image
Asia
For large-scale NW
YRP MOU Associates
Testbed NW withother countries and
domesticorganizations
Testbed NW for Evaluations
For sound quality
Connection with Internet via ISP,JGN
Building, measurement devices
I/F with wired NWs
CRL,YRP,PFI Test Bed FC
NW simulator
broadcast NW
NW simulator? emulator
Street cellular NW
Cellular NW
Digital TV, Analog TV, CATV, Satellite TV
Hot spot NW
DSRC,MMW-ITS Base station, Terminal, Base station
simulator
PDC,PHS,W-CDMA,CDMA2000 Based station, Terminal,
Base station simulator
IEEE802.11, HiSWAN Base station, Terminal
30Conclusions
- Wireless Test Bed System is required to develop
in accordance with technological innovation. It
takes a huge cost to construct and maintain a
test bed. However, the charge for usage should be
as low as possible to promote full utilization of
the facility. Connectivity and accessibility to
Test Bed should be open to any organizations at
home and abroad. - Currently, Test Bed equipment is mostly
installed by a single organization both in public
and private sectors. But, in case of a
large-scale test bed in technologically
innovating field, it is not practical to
construct one by a single organization. - A Test Bed consists of two parts Hard (equipment
and instruments) and Soft (operation and
business) to interact to each other. Both parts
do not have to be centralized. Functionalities
may be dispersed and yet cooperate on demand. - Therefore, it is desirable that the basic
architecture of Test Bed be built jointly by 1)
national research laboratories with test
facilities and competence as technological
advisors, 2) a consortium of RD laboratories
from manufacturers, communication carriers, etc.
who coordinates for joint research, research
costs, etc., 3) third party testing
organizations who meet the demand of
technological certification tests etc. and may
provide fair and just management of Test Bed on a
daily basis, and that Test Bed facility personnel
should cooperate in the operation of Test Bed. - Furthermore, Test Beds may facilitate
international co-operations in standardization
etc. Governmental subsidies and supporting
measures for Test Beds should be considered for
better development and further progress of
communication technologies.
31Promotion Body of YRP
Advisor
Kouji Ohboshi NTT DoCoMo, Inc. Corporate
Advisor
Mitsutoshi Hatori (Professor Emeritus, University
of Tokyo)
Advisory Committee
Chairman
General Assembly
Akio Motai (Asahi National Broadcasting Co., Ltd.)
President
Giving advice suggestions to YRP Planning
Vice-President
Secretariat
Executive Committee
Auditor
(Exchange)
(Planning)
(Joint Research)
(Radio License)
(Research Facilities)
Planning Promotion Group
YRP Academia Collaboration Network Steering
Committee
YRP Ubiquitous Communications Test and Research
Forum via Test Bed
Discussion Group on IPR in Joint Research
Experiment Station Management Committee
Planning publicity, improvement of living
working environment
Discussing how to deal with IPR in joint research
Running Academia Collaboration Network
ITS Joint Research Group
Planning Group
Test Bed Promotion Group
Directors Exchange Society
Stratospheric Network Joint Research Group
Discussing strategies and projects for
cooperation between industry, academia
government
Discussing joint research on Intelligent
Transport Systems
Discussing joint research on stratospheric
wireless relay network
Promotion Group on Tests and Development for
Convergence of Communication and Broadcasting
Technologies
Exchange for YRP DirectorsReceiving overseas
delegations
Project Discussion Group
UWB Wireless Technology Joint Research Group
New Generation Mobile Systems Joint Research Group
Corporate Exchange Urban Functions Discussion
Group
Discussion Group on Improvement of ITS Test
Facilities
Discussing joint research on Ultra Wide Band
(UWB) technology
Discussing joint research on new generation
mobile systems
Promotion Group on Applications Development
Millimeter-Wave Broadband Joint Research Group
APT Training Course AP-NeGeMo Reviewal Group
Investigative Study Group on Millimeter-Wave
Vertically-linked Wireless Systems
Millimeter-Wave Ad-hoc Joint Research Group
Discussing joint research on millimeter-wave
broadband wireless access systems
Discussing joint research on MM-wave ad-hoc
wireless systems
32Image of Extended YRP Test bed
Yokosuka Chuo st.
In the St.
YRP Testbed center
Highway
Urban area
To the broadband optical NW
In the train
In the St.
In the bus
Nobi st.
Development and Evaluation Tests of Protocols and
Wireless Systems
Development and Evaluation Tests of Applications
Showcase as Verification Test (Demonstration)