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Research and Development on Wireless Testbed for Next Generation Mobile Seamless Communication Netwo

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Title: Research and Development on Wireless Testbed for Next Generation Mobile Seamless Communication Netwo


1
Research 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

2
Outline 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

3
Overview 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

4
Overview 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.
5
Agenda 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

6
Agenda 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.

7
Agenda 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.

8
Agenda 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.

9
Agenda 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

10
Outline 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

11
Wireless Test Bed Aimed at Seamless
Communications- Background -
12
Wireless 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.
13
Outline 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

14
Demonstration 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

15
Demonstration 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
16
Demonstration 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
17
Demonstration 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.

18
Demonstration 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
19
Demonstration of Seamless Communications-
Network Architecture -
20
Demonstration 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
21
Demonstration 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
22
Emergency 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.
23
Emergency Medical Communications- Communication
Area -
Optical fibers
5GHz band base station
5GHz band area
24
Emergency 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
25
Emergency 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
26
Outline 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

27
Future 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
28
Future 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
29
Future 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
30
Conclusions
  • 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.

31
Promotion 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
32
Image 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)
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