3G Wireless
Presentation
Bryan Reamer
 Ma Yixing
 Shu Yang

IS306 Telecommunication Networks
3G wireless

The next step in mobile communications
– Define 3G wireless
– Where implementation is at
– Constraints to Global implementation
– Who benefits
– What are the benefits
3G’s ITU IMT-2000 definition

Support circuit and packet data high bit rate
– 144kbps in high mobility(vehicular) traffic
– 384kbps for pedestrian traffic
– 2Mbps or higher for indoor traffic

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Interoperability and roaming
common billing/ user profile
– Sharing of usage/rate information between service provider
– Standardized call detail recording
– Standardized user profile

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Geographical position of mobiles and report it to both the
network and the mobile terminal
Support of multimedia services/ capabilities
–
–
–
–
Fixed and variable bit rate traffic
Bandwidth on demand
Asymmetric data rates in forward and reverse links
Multimedia store and forward
– Broadband access up to 2Mbps
Current Products FOMA
N2001 by NEC, the standard phone, with an improved color screen and -like the P2101V- no external
antenna.
P2101V by Panasonic, outwardly similar to the P503is, sports a camera that besides taking stills allows it
function as a TV phone with other P2101V handsets.
P2401 by Panasonic, a PCMCI card designed for data transmission up to 384Kpbs downstream and 64K
upstream.
Wireless Services
Available in US

Verizon - cdma2000 1x technology up to 144 kbit/s
but users should see speeds of 40 to 60 kbit/s on average.
data speed 19.2kbps or less locally
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Sprint - Plans to upgrade by 2004 GPSR and EDGE
Cingular - plans to start CDMA2000 1x
AT&T - Deploying GSM/GPRS to 40% of its market,
next to EDGE software to WCDMA

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T-Mobile - GSM/GPSR service
Nextel Communications – unknown plans
3G wireless timeline
September 1998: Call in DoCoMo's trial network
October 1, 2001: NTT DoCoMo launched commercial WCDMA 3G mobile network.
November 1, 2001: Live 3G EDGE call.
 December 1, 2001: Commercial UMTS network(Norway). No UMTS terminals
 December 19, 2001: International UMTS 3GPP roaming calls. Madrid - Tokyo.
 January 28, 2002: Commercial CDMA2000 1xEV-DO.
February 8, 2002: End-to-end 3G WCDMA 3GPP packet data calls
 February 18, 2002: GSM/GPRS and 3G/UMTS product.
 February 20, 2002: Rich call in an end-to-end All-IP
September 24, 2002: Dual mode WCDMA/GSM calls with seamless handover
between the two modes and high data rate in live networks
September 25, 2002: "Europe's First UMTS-Network"
September 26, 2002: Nokia [6650] for WCDMA [UMTS] and GSM networks".
 October 1, 2002: Bluetooth WCDMA (UMTS) and GSM Voice Calls.
October 3, 2002: VoIP call completed in a 3GPP release 4 compliant network.
October 10, 2002: UMTS voice and data calls demonstrating mobility
across commercial cell sites using live 1900 MHz radio spectrum,
Reasons for delay
Regulations
 Developing Technology
 Financial Considerations

3G Technology:
-UMTS (W-CDMA,TD-CDMA) & CDMA 2000
UMTS- Europe, Japan, China
CDMA2000 – US, Korea
3G Technology:
-UMTS
– W-CDMA (FDD)
Duplex
– TD-CDMA (TDD)
3G Technology:
-CDMA 2000
– 1XRTT (144 Kbps)
– 3XRTT (2Mbps)
– 1X EV (Evolution)
 1X
EV-DO ("Data Only"): Separate
frequencies for data and voice.
 1X EV-DV ("Data and Voice"): integrate voice
and data on the same frequency band
W-CDMA vs. CDMA 2000
– W-CDMA: Brand new network, requires
new spectrum.
– CDMA2000: Build on the old CDMA
network, deploy fast, flexible in spectrum,
more efficient for both voice and data,
base station synchronization, existing in
Korea.
Standardization:
 3GPP-
UMTS
 3GPP2- CDMA2000
Global Roaming
Spectrum:
 ITU
Suggests 1885-2025 MHz and
2110-2200 MHz for 3G service.
Europe and Asia: Available
US: N/A
Spectrum:
 Regulators
 FCC (Federal Communication Commission)
 NTIA (National Communications and Information
Administration)



US, until September-2004
Demand is high, spectrums are limited
Carriers need the license from government
to run the business.
Is 3G a wireless marvel
or an investment disaster?
The 3G technology promises highspeed data, mobile streaming video and
anytime-anywhere access.
 But implementation costs have
significantly dampened enthusiasm.

Spectrum cost
Limited spectrum
 Major carriers have to pay the $16
billion for getting the license from
government auction of spectrum
licenses.
 the prices some companies paid
for licensing are affecting their
ability to invest in 3G
infrastructure.

Technology cost
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WCDMA or CDMA 2000
Example of Korea and Japan
The situation is similar in the U.S.
Sprint PCS and other CDMA operators
on the path to cheaper upgrade than
those operators on the path to WCDMA.
So the CDMA2000 has time advantage,
W-CDMA has scale. but this scale
advantage need time.
Price compare
The existing networks are determining what
path the carriers are choosing to get to 3G.
·
North American wireless carriers
Carrier
Path to 3G
Wireless subscribers
(voice & data)
Sprint PCS
CDMA 2000
90 million
Verizon Wireless
CDMA 2000
26 million
Cingular
WCDMA
19 million
AT&T Wireless
UMTS & WCDMA
12 million
VoiceStream
WCDMA
3 million
Expensive devices and
service to consumers

In addition to 3G's already expensive
tag, the end user devices to be used in
conjunction with the next generation
of wireless infrastructure are also
expected to be expensive. It's
estimated that 3G-enabled handsets
will cost $300, in addition to monthly
service fees that could be as high as
$90.
Handsets price
Huge market
Despite these hurdles, major
carries and equipment vendors
have mostly laid out their
blueprints for migrating toward
3G technology.
 China already is the world's largest cell
phone market, with 180 million
subscribers and growing.

Current wireless users
Conclusion
There are several factors that delay
the deployment of 3G systems
worldwide, but it is such a large
market issue companies will continue
to use resources in developing 3G
technologies.
Q&A