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Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 2
CONTENT
From 3G to 4G3G Technologies now (Technical overview)Migration from 3G to 4G (WiFi to Wi-Max,…)Short Trendanalysis
4G Technologies and InfrastructuresWi-Max, FDMA
Long term Outlook and Conclusions
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 3
FROM 3G TO 4G3G TECHNOLOGIES NOW
Current circumstancesvoice call over GSMdata transfer circuit switched
HSCSD (43,2Kbit)CSD (9,6Kbit)
data transfer packet switchedGPRS (57,6Kbit)UMTS (384Kbit)
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 4
Universal Mobile TelecomunicationSystemPacket switched Roaming possibility with GSM
incompatibility with GSM (dual mode)Infrastructure remains mostly the same
expensive licenses
FROM 3G TO 4G3G TECHNOLOGIES NOW | UMTS | ARCHITECTURE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 5
Supports a larger number of customerssuited for Applications with high bandwidth requirementSecurity, QoScurrently used in mostly urban areasSpeed:
overall capability 1920Kbit/scurrently available 384Kbit/s
FROM 3G TO 4G3G TECHNOLOGIES NOW | UMTS |CAPABILITIES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 6
life TV feedsSwisscom allready providing severalstreams (SFDRS, MTV)
Videoconferencingexpected killer application
Web browsingmultimedia services and applicationsin general
FROM 3G TO 4G3G TECHNOLOGIES NOW | UMTS | USAGE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 7
General Packet Radio Servicemost used data servicepacket-switched
considered to be placed in thecategory of 2.5G
FROM 3G TO 4G3G TECHNOLOGIES NOW | GPRS | ARCHITECTURE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 8
packet-switchedideal and efficient for variable bandwithusing applications
E-mail, Web browser, etc.charged per Kbit, not per time unit better usage of network infrastructure
FROM 3G TO 4G3G TECHNOLOGIES NOW | GPRS | CAPABILITIES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 9
Checking E-mailSurfing WAP- portalsMMS
FROM 3G TO 4G3G TECHNOLOGIES NOW | GPRS | USAGE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 10
2 types of networksInfrastructure
AdHoc
FROM 3G TO 4G3G TECHNOLOGIES NOW | WLAN | ARCHITECTURE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 11
security methodsWEP (Wired Equivalent Privacy)
suitable for most small networksSSID (Secure Service Identifier)MAC (Media Access Control) adressfilteringVPN (Virtual Private Network)
most secure form
FROM 3G TO 4G3G TECHNOLOGIES NOW | WLAN | ARCHITECTURE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 12
Wi-Fi uses unlicensed radio spectrumHigh datarates
up to 54Mb/slow costeasy installation
FROM 3G TO 4G3G TECHNOLOGIES NOW | WLAN | CAPABILITIES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 13
free vs. commercial wireless networksoffers many advantages in mobile computing
but also very dangeroussecurity considerations
FROM 3G TO 4G3G TECHNOLOGIES NOW | WLAN | USAGE
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 14
FROM 3G TO 4GMIGRATION CONSIDERATIONS FOR 3G TO 3.5G AND 4G
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 15
Cell size is smaller than 3Gcells made as large as possible via high power based stations
different antenna technology
FROM 3G TO 4GMIGRATION CONSIDERATIONS FOR 3G TO 3.5G AND 4G | INFRASTRUCTURE CHANGES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 16
only packet switched protocolIPv6
FROM 3G TO 4GMIGRATION CONSIDERATIONS FOR 3G TO 3.5G AND 4G | COMUNICATION PROTOCOL CHANGES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 17
Different wireless networks pose challenges
size limitationpower consumption limitationscostbackward compatibilities
FROM 3G TO 4GMIGRATION CONSIDERATIONS FOR 3G TO 3.5G AND 4G | NEW DEVICES
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 18
FROM 3G TO 4GTrend Analysis | Where is Mobile Technology going?
No clear definition4G to be considered as
Intergrated Wireless SystemSet of new transmission protocols and technologies
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 19
4G as integrated Wireless System enabling seamless roaming
Deeper focusing on user experienceEffective open and flexible integration of multiple technologiesInteractive multimedia supportGlobal RoamingLOW Cost
FROM 3G TO 4GTrend Analysis | Where is Mobile Technology going?
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 21
First TrendGreat heterogenity of deployed networksService portability and interoperability
Second TrendNovel concepts for opertunistics and adaptive wirelessnetwork infrastructureProposal
„Network of Networks“Third Trend
ABC (Always best connected)Fixed and mobile wireless accessMostly technology forecast and definition
FROM 3G TO 4GTrend Analysis | Possible Trends
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 22
WWRF (Wireless World Research Forum)Nokia, Alcatel, Siemens, EricssonVisions on strategic future research
Samsung VisionEstabilishing 4G technology mobile comunication initiativeRelationships to commercial and academic partners
FROM 3G TO 4GTrend Analysis | Industry initiatives
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 23
4G INFRASTRUCTURES AND TECHNOLOGIES
Not clearly definedThe most probable:
Wi-MaxOFDM (MC-CDMA, TDMA)MIMO - OFDM
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 24
Worldwide interoberability forMicrowave access
IEEE802.16 standardSuited for MAN
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 25
Operates similar to Wi-FiBut at higher speedsOver greater distancesGreater number of users
IEEE802.16 specsRange 30miles (50km) radius from basestationSpeed 70Mbit/sLine of sight not neededFrequency bands 2 to 11 GHz and 10 to 66GHz
Licensed and unlicensed bands
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX| technical intro
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 26
WI-MAX systemWi-Max TowerWi-Max Reciever
Acces FormsNon line of sight
Lower frequency (2-11GHz)Line of sight
Higher frequency (up to 66GHz)
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX| technical intro
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 27
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX| technical intro
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 28
Fix networks infrastructures requiringhigh gain antennasOverall requirements rather modest…
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX| Infrastructure requirements
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 29
Ideally suited to replace costly installation and services of short distance lines (Enterprise T1 lines)Wireless connecting buildingsScenario
4G INFRASTRUCTURES AND TECHNOLOGIES |Wi-MAX| usage possibilites
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 30
Orthogonal Frequency Division Multiplexing
comes from FDMMCM as underlying technologyTransmits multiple signals simultaneously
4G INFRASTRUCTURES AND TECHNOLOGIES |OFDM| technical intro
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 31
MIMO-OFDM (Multiple Input, Multiple Output-OFDM)
by Iospan Wirelessuses multiple antennas fortransmitting radiosignals
4G INFRASTRUCTURES AND TECHNOLOGIES |OFDM| technical intro
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 32
OFDM and versions are used by other(wireless) technologies
requirements fall togethercaution here:
proper interfaces and implementations
4G INFRASTRUCTURES AND TECHNOLOGIES |OFDM| infrastructure requirements
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 33
DAB-OFDMbasis for Digital Audio Broadcasting standard
ADSL-OFDMAsymetric Digital Subscriber Line standard
WLANp-to-p and p-to-mp
…
4G INFRASTRUCTURES AND TECHNOLOGIES|OFDM| usage possibilities
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 34
OUTLOOK AND CONCLUSION
What is needed to build 4G networks of thefuturePossible Applications for 4G
Virtual PresenceVirtual NavigationTele-medicineTele-geoprocessingCrisis management applicationsEducation
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 35
4G as integrated wireless system4G supports interactive multimediaserviceswider bandwidthshigher bitrates4G still to come
OUTLOOK AND CONCLUSION
?????QUESTIONS??????
Sources:www.4g.co.ukwww.networkworld.com/columnists/2004/0112wizards.htmlwww.item.ntnu.no/fag/tm8100/Pensumstoff2004/UMTS2ANNE.pdfwww.commdesign.com/story/OEG20010626S0065http://z2.inf.tu-dresden.de/andy/Zusatzfolien/InRichtung4G.pdf
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 38
DISCUSSION
Usage possibilities for 4G?What is the ultimate killer application for4G?
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 39
DISCUSSION
What goes really beyond 3G?the conceptthe technologythe ideathe infrastructure
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 40
DISCUSSION
Do we need 4G as a new concept orsystem?
speedroaming…
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 41
DISCUSSION
What is to be considered a 4G technology or infrastructure?
new protocols?new devices?existing devices and protocols?
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 42
DISCUSSION
Cost vs. usage vs. need for a 4G infrastructure
Cost considerations regardinginfrastructure implementation?
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 43
DISCUSSION
How industry initiatives influencetechnology development
to narrow focus on a single technologycompetition between industry firms as an obstacle to free and constructivetechnology development
Mobile Systems Seminary Phillipp Buchmann Dane Marjanovic 44
DISCUSSION
Will Wi-MAX succeed and fully replaceWi-Fi?
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