3g/4g mobile services. synopsis why 3g? types of internet connectivity 3g data rate 3g services in...
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3G/4G MOBILE SERVICES
SYNOPSIS
Why 3G? Types of internet connectivity 3G data rate 3G services in Asia Evolution of Mobile Systems to 3G 3G standards W-CDMA Impact on existing network CDMA2000 evolution to 3G 3.5G 3G applications
3 G
3G is the next generation of mobile communications systems.
It enhances the services such as multimedia, high speed mobile broadband, internet access with the ability to view video footage on your mobile handset.
With a 3G phone and access to the 3G network you can make video calls, watch live TV, access the high speed internet, receive emails and download music tracks, as well as the usual voice call and messaging services found on a mobile phone, like person to person video, live streaming, downloadable video of entertainment, news, current affairs and sport content and video messaging
3G CAPABILITIES
High speed data transmission
Improved voice quality
Greater capacity
Multiple simultaneous services
Global roaming across network
Improved security
Service flexibility
Why 3G?
Higher bandwidth enables a range of new applications!!
For the consumerVideo streaming, TV broadcastVideo calls, video clips – news, music, sportsEnhanced gaming, chat, location services…
For businessHigh speed teleworking / VPN accessSales force automationVideo conferencingReal-time financial information
TYPES OF INTERNET CONNECTIVITY
Global systems for mobile communication (GSM)
High speed circuit switched data (HSCSD) General packet radio services (GPRS) Third generation (3G) mobile Enhanced data GSM environment (EDGE) Public access WLAN Linked public access WLANs
DATA RATE
Stationary user:2 megabits per second.
Moving vehicle :348 kilobits per second.
Ideal conditionsDownload : 14.4 megabits per second. Upload : 5.8 megabits per second.
3G SERVICES IN ASIA
CDMA (1xEV-DO)Korea: SKT, KTFJapan: AU (KDDI)
WCDMA / UMTSJapan: NTT DoCoMo, Vodafone KKAustralia: 3 HutchinsonHong Kong: 3 Hutchinson
Evolution of Mobile Systems to 3G- drivers are capacity, data speeds, lower cost of delivery for revenue growth
cdmaOnecdmaOne
GSMGSM
TDMA TDMA
2G
PDC PDC
CDMA2000 1x
CDMA2000 1x
First Step into 3G
GPRSGPRS 90%
10%
EDGEEDGE
WCDMA
WCDMA
CDMA2000 1x EV/DV
CDMA2000 1x EV/DV
3G phase 1 Evolved 3G
3GPP CoreNetwork
CDMA2000 1x EV/DO
CDMA2000 1x EV/DO
HSDPA
HSDPA
Expected market share
EDGEEvolution
EDGEEvolution
3G STANDARDS
3G Standard is created by ITU-T and is called as IMT-2000.
The aim of IMT-2000 is to harmonize worldwide 3G systems to provide Global Roaming.
W-CDMA makes possible a world of mobile multimedia
IMPACT ON EXISTING NETWORK
Yes, New W-CDMA handsets will work on W-CDMA at 2Mbps, EDGE n/w at 384 Kbps, GPRS n/w at 144 Kbps. GSM n/w at 9.9 Kbps. Older handsets will not work in W-CDMA.
Yes
Requires completely new base stations
FDD5MHzW-CDMA
Yes, New handsets work on EDGE n/w at 384Kbps, GPRS n/w at 144Kbps, and GSM n/w at 9.6 Kbps with tri-mode phones. GSM and GPRS-only phones will not work in EDGE n/w.
No
Requires new transceivers at base station. Also, software upgrade to the BSC & BTS
FDD200KHzEDGE
Yes, New GPRS handsets work on GPRS n/w at 171.2Kbps, 9.6 Kbps on GSM n/w with dual mode phones. GSM only phones will not work in GPRS n/w.
No
Requires new packet overlay including routers and gateways
FDD200KHzGPRS
Yes, New HSCSD handsets provide 57.6Kbps on HSCSD n/w and 9.6 Kbps on GSM n/w with dual mode phones. GSM only phones will not work in HSCSD N/w.
No
Requires Software Upgrade at base station
FDD200KHzHSCSD
Requires New HandsetsRequires
New Spectrum
Infrastructure Change
DuplexChannel
BW
Wireless Data Tech
CDMA2000 EVOLUTION TO 3G
CDMAIS-95A
IS-95A14.4 kbpsCore network re-used inCDMA2000
IS-95B
IS-95BUses multiple code channelsData rates up to 64kbpsMany operators gone direct to 1xRTT
1xRTT
CDMA2000 1xRTT: single carrier RTTFirst phase in CDMA2000 evolutionEasy co-existence with IS-95A air interfaceRelease 0 - max 144 kbpsRelease A – max 384 kbpsSame core network as IS-95
1xEV-DO
CDMA2000 1xEV-DO: Evolved Data Optimised Third phase in CDMA2000 evolutionStandardised version of Qualcomm High Data Rate (HDR)Adds TDMA components beneath code componentsGood for highly asymmetric high speed data appsSpeeds to 2Mbps +, classed as a “3G” systemUse new or existing spectrum
1xEV-DVCDMA2000
3xRTT
CDMA2000 1x Evolved DVFourth phase in CDMA2000 evolutionStill under developmentSpeeds to 5Mbps+ (more than 3xRTT!)Possible end game.
CDMA 1xEV-DV
Backward compatible with CDMA 2000. EV-DV can be easily extended to operate in 3x mode
under the framework of current system. Forward peak data rate : 3.072 Mbps. Reverse peak data rate: 451.2 kbps. Addition of three new channels to f/w link and reverse
link for packet data operation and its support. Adaptive modulation and coding : QPSK, 8- PSK, 16-
QAM Variable frame duration Mobile station can select one of N base stations. DTX transmission supported for saving battery life.
3.5G
3.5G or HSDPA (High Speed Downlink Packet Access) is an enhanced version and the next intermediate generation of 3G UMTS.
It comprises the technologies that improve the Air Interface and increase the spectral efficiency, to support data rates of the order of 30 Mbps.
It introduces many new features that will enhance the UMTS technology in future.
These include: Adaptive Modulation and Coding Fast Scheduling Backward compatibility with 3G Enhanced Air interface
3G APPLICATIONS Wireless Internet Audio on demand Electronic postcards Video conferencing Secure mobile commerce transactions Traffic and traveling information - location
specific
4G – MOBILE SERVICES
Synopsis
Introduction Impact of 3G and 4G 4G Networks Difference between 3G and 4G Advantage Disadvantage Future Outlook Conclusion
Why Move Towards 4G?
Meet expectations.
Global mobility
Need a new integrated network
More efficient modulation schemes
Introduction
High-Speed data access
High-quality streaming video
Combination of Wi-Fi and Wi-Max
SDR, OFDM, OFDMA and MIMO
4G: Anytime, Anywhere Connection
Also known as ‘Mobile Broadband everywhere’
‘MAGIC’Mobile Multimedia CommunicationAnywhere, Anytime with AnyoneGlobal Mobility SupportIntegrated Wireless SolutionCustomized Personal Service
According to 4G Mobile Forum, by 2008 over $400 billion would be invested in 4G mobile projects.
In India, communication Minister Mr. Dayanidhi Maran, has announced a national centre of excellence to work in 4G.
FEATURES
4G: DATA RATE FACTS
Transmission at 20 Mbps
2000 times faster than mobile data rates
10 times faster than top transmission rates planned in final build out of 3G broadband mobile
10-20 times faster than standard ADSL services.
Companies developing 4G technology Cellular phone companies: Alcatel, Nortel, Motorola, IT Companies: Hughes,HP,LG Electronics
Impacts of 3G and 4G Data Speed – 70 mbps Starting to invest serious time Wireless technologies
Comparison between 3G & 4G
Attribute 3G 4G
Major Characteristic
Predominantly voice- data as add-on
Converged data and VoIP
Network Architecture
Wide area Cell based
Hybrid – integration of Wireless Lan (WiFi), Blue Tooth, Wide Area
Frequency Band 1.6 - 2.5 GHz 2 – 8 GHz
Component Design Optimized antenna; multi-band adapters
Smart antennas; SW multi-band; wideband radios
Bandwidth 5 – 20 MHz 100+ MHz
Data Rate 385 Kbps - 2 Mbps 20 – 100 Mbps
Comparison between 3G & 4G
Attribute 3G 4G
Access WCDMA/CDMA2000 MC-CDMA or OFDM
Forward Error Correction
Convolution code 1/2, 1/3; turbo
Concatenated Coding
Switching Circuit/Packet Packet
Mobile top Speed
200 kmph 200 kmph
IP Multiple versions All IP (IPv6.0)
Operational ~2003 ~2010
Advantages MAGIC
Affordable cost
Disadvantages Battery usage is more
Hard to implement
Need complicated hardware
Future Outlook
4G is coming quicker
Wireless is cheaper
Conclusion High Speed, Capacity, low cost per
bit
Single worldwide cellular network
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