Transcript TSACC Test Area

GSC-8
SOURCE:
TSACC
TITLE:
Beyond IMT-2000/NGN:
Next Generation Converged Networks
AGENDA ITEM:
Joint GRSC/GTSC: 4.2
023 long
Beyond IMT-2000:
Next Generation Converged
Networks
John Visser, P.Eng.
Phone:
Fax:
Mobile:
Email:
+1-613-763-7028
+1-613-765-6257
+1-613-276-6096
[email protected]
Two versions:
• “short” for presentation
• “long” for off-line review
28 Apr - 1 May 2003
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Wireless Vision (I): Connectivity
• The future of wireless is one in which
networks will interconnect people and
machines in all combinations
• Wireless data networking will have an impact as
profound as the Internet had on the wired world
• Everyone has been looking for the ‘killer app.’ Some
believe it's all about content. But the killer
application is connectivity! Content is not king;
connectivity is king.
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Wireless Vision (II): revenue
from data
• It's all about low-price, broadband wireless
• Growing number of internet-savvy consumers and
business professionals want to be connected
wherever they are, without wires
• 3G wireless networks are cheaper to operate
• Positions operators to reap larger revenue
opportunities as data-driven services catch on with
consumers and business
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The Wireless Landscape
Wireless Wide Area Network (WWAN)
•
•
•
Metro/Geographical area
“Always On” Services
Ubiquitous public connectivity with
private virtual networks
Wireless Local Area Network (WLAN)
•
•
Mobility
Outside
Campus
Walk
4G
Bluetooth
0.1
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HiperLAN2
802.11a
DECT
Walk
Fixed/
Desktop
•
•
802.11b
Within
Campus
Fixed
CDMA2000 1X
GSM/GPRS
Vehicle
Public or Private Site or Campus
Enterprise / premises application voice
& data network extension
Nomadic / “pull” services
Non-licensed spectrum
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LAN
100
Mbps
4
Exploring the Vision Disparate networks
• Today, there are three disparate networks:
• Wireline network
– good for voice but not data (carry data by making it look like
voice)
• Data router network
– a "best effort" network which loses about 6% of traffic
– OK for data but not for carrier-grade voice
• Wireless mobility network
– 2G: good for voice
– 3G: data oriented, voice capacity improvements
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Types of connections
• People-to-people, supporting full mobility
– when you call a number, you call a person, not a place
• People-to-machine "nomadic" connections
• Machine-to-machine sensor connections
All will bring data traffic to the packet
network and increase the need for
network capacity and speed
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Network transition
• Wireless transitioning from a voice business to a
data business that includes voice
• Built on one core packet network and a variety of
access methods
• Adoption of data services an essential aspect
• Mobile access to the network now exceeds fixed
access in some 100 countries
Wireless voice is today’s reality.
Wireless data will be tomorrow's reality.
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Access Independent
Wireless Core Network
• There will be multiple access technologies: UMTS,
CDMA DO/DV, GSM, GPRS, EDGE, 802.11, even the
PSTN/ISDN as a “fixed access network”
• They will deliver more capacity, improved spectral
efficiency, higher speeds
• There is no ‘best’ access solution: often the answer
will be a hybrid network with several wireless access
types providing a choice of access
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Essential network attributes
• Attributes of the single packetized network:
–
–
–
–
–
voice over IP
universal mobility (presence, location, roaming)
security
“five 9’s” reliability for mission-critical applications
IP services
• Must support IP services embedded in the network
(VPN, QoS, billing), and enable consumer and
business services applications at the edge
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Wireless Data Networking
• The real cost efficiencies and personalized service
opportunities that will drive the market in say, five
years, will evolve from intelligent, all-IP core
networking
• Broadband radio access and core networking are
converging: the industry is evolving to true wireless
data networking
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“The Network” ...
HLRs/ACs
SCPs
CCS7
Network
MSCs
SSPs
Fixed Data Access
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... has morphed, but it is still
recognizable!
Call Feature
Servers
Legacy Networks
Media
Gateway
Mobility
Servers
Application &
Content Servers
IP Network
Multiple Mobile
Access Standards
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Fixed MM Access
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WLANs
• WLANs are highly-complementary to broader 3G
wireless WAN coverage
– won't stand alone
– an indoor solution to provide high bandwidth data access in
nomadic environments
– WLAN cannot facilitate the true, ubiquitous 'anywhere,
anytime' coverage that consumers have come to expect for
wireless voice services
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WLANs
• A joint WLAN and WWAN offering can make a lot of
business sense for wireless operators
– enables high-bandwidth data services to customers to
increase overall ARPU
– enhance end-user satisfaction and customer loyalty
– furthers the 'always-on' lifestyle: where we need to be going
• Hurdle for WLAN business model is not CAPEX, but
OPEX
– deploying WLANs is inexpensive
– costs of backhaul and maintenance are challenges: need to
bring these costs down
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Global Public WLAN Growth
Users
42,000
Global Hot Spot Locations
50,000
40,000
30,000
20,000
10,000
2,000
2001
2002 2003 2004 2005
Source: Instat/MDR 5/02
U.S. Public WLAN Users (M)
Locations
5.6M
6
Consumer Users
Business Users
5
4
3
2
1
30k
0
2002
2003
2006
2004
2005
2006
2007
Source: Yankee Group 11/02
$2,000
$1,500
$1,636
Public WLAN Service
Revenue Growth (USA)
$1,000
$830
$495
$500
$217
$0
$9
2002
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$82
2003
2004
2005
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2006
Source: Yankee Group 11/02
2007
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Evolution to Wireless Data
• State of development of wireline infrastructure:
– where quality, high speed, low cost are norms, move to
wireless data will come when performance = “desktop”
– other markets: users will quickly migrate to wireless data
offerings that are better than their current experience
• Major reason for penetration variations: cultural
– European wireless users tend to be much more mobile than
consumers in other parts of the world
– Regions with very low wireline penetration: wireless
emerging as mainstream form of telephone service
– Calling-party-pays model encourages wireless penetration
for in-bound calls; called party pays for air time model
discourages giving out mobile phone numbers
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Public Access WLAN
Value Chain
Consumer
WLAN Service Provider
WLAN Operator
• Marketing, billing
• Aggregator
•
Access points, gateways, etc.
Data Center
Backhaul
Site Leasing
ISP
Leased Line Provider
“Facility Owner”
• WLAN service
provider
• Wireline ISP
• Corporate LAN
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• ILEC
• CLEC
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• Airport (lounge)
• Hotel
• Coffee Shop
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Business Scenarios
• No Coupling
– WLAN service provider and WWAN service provider
unrelated
– limited end user satisfaction
• Loose Coupling
– various degrees from minimal (downstream billing
integration) to close partnership between WWAN and WLAN
service providers
– potential for maximum end user satisfaction
• Tight Coupling
– WWAN and WLAN are same service provider
– maximum end user satisfaction
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Coupling Scenarios
MSC
HLR
CS SS7
SIG
BTS
Node B
Terminals
BSC
RNC
SIG
SGSN
GGSN
Operator
Data Center
Access
Point
Terminals
Radius/AAA
Server
WLAN
Gateway
Accounting
System
Public
Internet
Public
Internet
Operator
Backbone
Tight coupling
WLAN Data
Center
Accounting
System
No coupling:
this link absent
Loose coupling
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The PSTN/ISDN as a
“Fixed Access Network”
• Some markets, especially developing countries,
recognize that 3G wireless data will be the future, but
the economics are difficult
• Where wireline available, want to be able to use the
PSTN/ISDN as a “fixed access network”
– enables all services except terminal mobility, even when
roaming
– potential to reduce demand on wireless spectrum
– makes wireless more attractive
– simultaneous stimulus to PSTN/ISDN
– access options include UIM card (suitable terminal), DTMF
digits, and WLAN (suitable terminal)!
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Conclusions and Next Steps (I)
• Establish open protocols to allow different wireless
data networks, devices and applications to interface
seamlessly
– Consumer adoption of wireless data services depends on a
common language so that all devices can and will work with
all applications on all networks
– ITU-T, OMA and 3GPPs working in this direction
• Access independent core network essential to long
term subscriber satisfaction, operator revenues,
infrastructure purchases
– address inter-system roaming, mobility management,
authentication
– more cooperation between radio access and core network
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Conclusions and Next Steps (II)
• Stop playing CDMA vs. GSM vs. UMTS
– consumers see services, not technologies
– each standard has its merits depending on individual
operator needs
– argument about which is "best" is irrelevant
• Networks must recognize the wireless access reality
– wireless voice access today; wireless data tomorrow
• Drive consumer adoption of data services,
regardless of access technology, to tap into this
enormous new consumer market
– consumers pay for services, not technologies
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IMT-2000 and Beyond...
Global
Satellite
Suburban
Macrocell
Urban
Microcell
In-Building
Picocell
Basic Terminal
PDA Terminal
Audio/Visual Terminal
Realizing the IMT-2000 Vision
requires a global effort.
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Thank you!
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