3g paper presentation
TRANSCRIPT
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Presenting by:
Santosh chenna
116A1D5815
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The main objective of the 3G is to provide
faster communication service which
include voice, fax, multimedia, video
calling.
And to provide high speed internet access,
data, video and CD-quality music.
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1G Technology
2G Technology
2G+ Technology
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Analog radio signals
Implemented in North America
Known as Analog Mobile Phone Systems(AMPS) based on circuit-switchedtechnology and designed for voice, not
data. Technology used Frequency Division
Multiple Access (FDMA)
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It has low capacity, unreliable handoff, poorvoice links, and no security at all since voicecalls were played back in radio towers,
making these calls susceptible to unwantedeavesdropping by third parties.
If a user moved to a different cell area, thecall was often lost as handoffs would not
always occur correctly. Users often had to re-dial numbers or reconnect to the base stationin the new cell area.
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Used Digital Radio Signals
Mostly based on circuit switched
technology
These are digital and expand the range of
applications to more advanced voice
services.
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2G technologies may be categorized by
whether they are based on time division
multiple access (TDMA) or code division
multiple access (CDMA)
2G makes use of a CODEC (compression-
decompression algorithm) to compress
and multiplex digital voice data.
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It transmitted data through digital signals
Offered additional services such as SMS
and e-mail.
Less Power required
Error checking
improved sound quality
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In less populous areas, the weaker digitalsignal will not be sufficient to reach a cell
tower.
Low band width
Low data transmission speed
May not support Multimedia messages
not suitable for web browsing and
multimedia application
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It is as same as 2G Technology
But it is based on Packet switching
technology
It increases the data communication
speed up to 384kbps
Based on : General Packet Radio Service(GPRS) and Enhanced Data Rates for
Global Evolution (EDGE) technologies.
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The GPRS and EDGE are data
transmission techniques
GPRS has the data transmission speed upto 114 kbps
EDGE has up to 384 kbps
2G+ networks support services such asMMS, SMS, mobile games, and search
and directory.
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3G is the third generation of wirelesstechnologies.
It comes with enhancements over previouswireless technologies, like high-speedtransmission, advanced multimedia accessand global roaming.
3G is mostly used with mobile phones andhandsets as a means to connect the phone tothe Internet or otherIP networks in order tomake voice and video calls, to download andupload data and to surf the net.
http://voip.about.com/od/voipbasics/a/IP.htmhttp://voip.about.com/od/voipbasics/a/IP.htm -
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Services include:
Global roaming
Superior voice quality and video conference
Data always addon services (e-mail,
personal organizer, etc.)
Information for web surfing, music, news,
corporate intranet, transportation service etc. Purchasing on-line shopping / banking,
ticketing, gambling, games, etc
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A device with 3G compatibility, that may
be mobile phone or data card.
3G phones commonly have two cameras
since the technology allows the user to
have video calls
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First pre-commercial 3G network waslaunched by Japan in May 2001
First post-commercial launch by Japan in Oct2001
The second network is SK Telecom of SouthKorea in Jan 2002
First commercial 3G network of US is Monet
Mobile Network on CDMA 2000 Second network id Verizon Wireless in Oct2003 on CDMA 2000
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Japan is the first country having
introduced 3G nationally, and in Japan the
transition to 3G is being largely completedduring 2005/2006
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1. Enhanced multimedia(voice, data, video,and remote control)
2. Usability on all popular modes (cellular
phone, e-mail, videoconferencing, andweb browsing)
3. Broad bandwidth and high speed
(upwards of 2Mbps)4. Routing flexibility(repeater, satellite, LAN)
5. Roaming capability
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3G wireless networks consist of a Radio
Access Network (RAN) and a core
network. The core network consists of a
packet-switched domain, which includes3G SGSNs(Serving GPRS Support Node)
and GGSNs(Gateway GPRS Support
Node). In this used both packet switching and
circuit switching technologies
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AAA- Authenticating .authorization and accounting
BSS Base Station System
BTS Base Transceiver Station
BSC Base Station Controller
RNS Radio Network System
RNC Radio Network Controller
CN Core Network
MSC Mobile-service Switching Controller
MS Mobile station
VLR Visitor Location Register
HLR Home Location Register
AuC Authentication Server GMSC Gateway MSC
SGSN Serving GPRS Support Node
GGSN Gateway GPRS Support Node
SMS-SC Short Message
UMTS -Universal mobile telephonic service
AMR Adaptive mutilate
SMV Selectable mode vcoder GPRS -General packet radio service
EDGE Enhanced Data rates for Global evolution
3GPP 3rd Generation Partnership0 project
PDSN- Packet Data Service Node
PSTN public switched telephonic network
STM Synchronous transfer Mode
PPP-Point to Point protocol
ATM-Asynchronous Transfer Mode
EIR- Equipment identification register
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Brief Description about Protocols
1.Global Mobility Management (GMM): protocol thatincludes attach, detach, security, and routing area updatefunctionality.
2.Node B Application Part (NBAP): provides proceduresfor paging distribution, broadcast system information andmanagement of dedicated and logical resources.
3. Packet Data Convergence Protocol (PDCP): mapshigher level characteristics onto the characteristics of theunderlying radio-interface protocols. PDCP also providesprotocol transparency for higher layer protocols.
4. Radio Link Control (RLC): provides a logical linkcontrol over the radio interface.
5. Medium Access Control (MAC): controls the accesssignaling (request and grant) procedures for the radiochannel.
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6. Radio resource Control (RRC): manages theallocation and maintenance of radio communication paths.
7. Radio Access Network Application Protocol(RANAP): encapsulates higher layer signaling. Managesthe signaling and GTP connections between RNC and
3G-SGSN, and signaling and circuit-switched connectionsbetween RNC and 3G MSC.
8. Radio Network Service Application Part (RNSAP):provides the communication between RNCs.
9.GPRS Tunnel Protocol (GTP): protocol that tunnels the
protocol data units through the IP backbone by addingrouting information. GTP operates on top of TCP/UDPover IP.
10. Mobile Application Part (MAP): supports signalingbetween SGSN/GGSN and HLR/AuC/EIR.
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Two types of roaming.
1.Basic (inter-PLMN) Roaming
No handover between the involvednetworks
Subscriber services are determined by
capabilities of the visited network and HLRinformation.
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2. Regional National roaming
When the Visited and the Home PLMNs
belong to the same country, specific
mechanisms may be required in order to
allow the access to only a part of the
visited network (regional roaming).
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The main reason to use USIM is to offer
enhanced security to your customers,
because USIM is the only one supporting
3G Authentication.
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More bandwidth, security, and reliability.
Support video calling
Fixed and variable data rates. High data rate for fast net accessing
Rich multimedia services
Always-online devices. 3G will use IPconnectivity, IP is packet based (not circuit
based).
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3G environments offer the ability to deliver
mass-market, high-quality, wireless
multimedia applications that include
extraordinary capabilities such as location-based services and global roaming.
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