"Public" Access Scenarios and
requirements for Mobile@Public
Josef.Noll@telenor.com
www.eurescom.de ==> P1118
Project and Partners
Size: 103 man-months
Duration: Jan 2001 – Jun 2002
Task 2 Business cases
Task 3 Investigation of enabling
technologies
Task 4 Architecture design
Task 5 Architecture implementation
D-1: Public Bluetooth Access, An
opportunity to operators
D-2: User scenarios and business
cases
D-3: Bluetooth Public Access Point:
Architecture and Demonstration
D-4: Technical Handbook for
Demonstrator
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2
Service development
Broadband wireless services
B3G:
3G:
Multimedia communication
Mobile telephony, SMS, FAX,
Data
2G:
1G:
Mobile telephony
1970
1980
1990
2000
2010
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3
”Beyond 3G”
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4
Personalised & Mobile Application
Application
Personalised & Mobile
Applications
User
preferences
Access network
capabilities
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5
Roadmap Beyond 3GB3G
(B3G)
vision:
Security, QoS, Price
Appearance, User friendly
User preferences Presence (context aware)
Community (micro coordination
connection, services)
It works
Media scaling
Services
Service discovery, Jini, Mobile
Agents
It is simple
Management: network, security
Core Network
Access network
Technology Terminals
Supplementary
technologies
1-2 Mbit/s everywhere
200 Mbit/s in hot-spots
2001
2005
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It is personalised
2008/2010
6
Ubiquous Computing
Interconnectivity
Between your devices
To your neighbour
Create spontaneous networks
Create your ”personal sphere”
Access everywhere
Access from all devices
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9
Ad-hoc networking: Bluetooth
z
My phone is the gateway
z
My personal environment
z
Identification – my key
z
Local networking
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10
”Public” Access
ID
Scenario
Description, examples
Pub-Lim
Public Limited Access
Limited free info from a Bluetooth Access Point, e.g. in
museums, for timetables, etc.
Pub-Gen
General Public Access
The basic “Web everywhere” example: Internet, Web
mail, information services, etc.
Pub-Priv
Public with access to
private a/c
As “Pub-Gen” with access to private mail a/c, any other
ISP services, etc.
Pub-LAN
Public with access to
corporate LAN
As “Pub-Gen” with access to corporate mail a/c, other
corporate Intranet services, etc.
Semi-private
Semi-Priv
Semi Private Access
Hotels, sports/social clubs. Characterised by a limited
group of people having access to a specific set of
access points. The AP provider provides the system for
commercial purposes
Corporate
Corp-Visit
Corporate visited
Conference rooms, University visitors. Temporary
access to LAN made available by the AP provider for
non-commercial purposes.
Corp-Emp
Corporate employee
Standard access to corporate LAN, same authorisation
mechanisms as fixed access. University students/staff.
Priv-Visit
Private visited
Temporary visitor to your home
Priv-Gen
General Private Access
Access for permanent residents of house
Public
Private
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11
Bluetooth Access Point (BLAP)
Bluetooth Access
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12
Public Bluetooth Access –
customer view
Customer view
z
z
z
download .mp3 file
ADSL: free (need
subcription)
GPRS: 10-20 €, (no
subscription)
Other hot-spot access
zUMTS/Hiperlan
integration
Î via
IP core network
Î via Iu Interface
zPublic WLAN access
.mp3
Î Clarion
Hotel OSL (N)
zWLAN roaming
Î compatible
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devices
13
Bluetooth versus WLAN
Bluetooth
WLAN (802.11, 802.11b)
Data rate
4-700 kbps
4-6 Mbps
Range
10 m, up to 100 m
100 meters
# simultaneous
users
7
10 – 50 depending on application
Frequency band
2,4 GHz
2,4 GHz
Transmit power
1 mW, 2.5 or 100 mW
100 mW
Interfaces
ADSL, Ethernet, ISDN, PSTN, USB,
RS232
Primary Ethernet
Support for voice
Yes
Only VoIP
Type of clients
Inbuilt in PC, PDA, Mobile Phone, PCcard, CF-card, Memory Stick (Sony),
SSD-card, USB dongle, RS-232 dongle
Yes
Inbuilt in PC, PC-card, CF-card, RS-232
dongle and Ethernet dongle
15 – 50 depending on application
3
Power
management
# of parallel
systems
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==> P1118
Yes
Interoperability
Proprietairy solutions
14
Through WECA, not through standard
Conclusion: Bluetooth versus WLAN
Bluetooth and WLAN are not competing, but almost
”complementary”
Bluetooth: Interconnectivity of devices (Mobile Phone,
PDA, Camera, Stereo, PC), Voice support,
WLAN: Data connectivity
Similar coverage (Bluetooth with 20 dBm)
Interference:
Î
Î
Sharing same radio spectrum (ISM band)
WLAN is more affected than Bluetooth (fast hopping,
bandwidth)
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15
Benefits for Telekom Operators
Fixed network
Mobile Network
Increase ADSL
Whole-Sale
Services to other
Mobile operators
Provides increased
access speed at home
Access to 3G services
Guaranteed quality
Whole-Sale argument
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17
Four main working areas
1. Use of SIM in authentication on Bluetooth
Networks
2. Use of IPsec/RADIUS for Corporate LAN
authentication
3. Spread of Authentication between
devices in PAN
4. Spontaneous Pairing of Bluetooth
Devices
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19
Distributed SIM: Authentication and
security in your ”personal sphere”
Every customer has a
mobile phone
z
The mobile phone is the
authentication centre
z
Other devices use the SIM
in a distributed network
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z
20
GSM/GPRS/UMTS Mobility
z
z
z
Ericsson product: Mobile@Home (2003)
Public: Mobile phone
Privat/corporate/hot-spot: Bluetooth
access
public
GSM/GPRS
core network
GSM/GPRS/UMTS
hot-spot/
corporate
BSC
Bluetooth
LAN
HomeBSC
home
Ethernet
NT
ADSL
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Bluetooth
Ethernet
21