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Sideseadmed (IRT0040) loeng 2/2010

Avoavots@lr.ttu.ee

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Multi-Dimensional - Wireless

TechnologiesA

pplic

ati o

ns

Services

•2G/3G cellular -> 4Gmobile

•Wireless Local Loop (WLL)

•Broadband Wireless Access (BWA)

•Wireless LAN

•Satellite Wireless

•Microwave Link

•Specialized wireless

• …………………….

•Wireless telephony

•Wireless internet

•Wireless Data

•Specialized services

• …………………..

•Free mobile (drive)

•Restricted mobile (walk)

•Fixed wireless trunking

•Fixed wireless extension

•Fixed wireless access

•Nomadic wireless

• ………………. Standards

•ITU IMT2000

•ITU WAS (JRG8A-9B)

•ETSI UMTS

•TIA IS 41/95/136

•MMDS/LMDS/WCS/UNII

•ETSI BRAN

•IEEE 802.11/15/16

• ……………...

Business

•CDG

•WATM WG

•3GPP/3GPP2

•MWIF

•WCA

•PCIA

•WAP

M a e m o (1)

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M a e m o (2)http://maemo.org/

http://www.linuxdevices.com/news/NS6059837915.html

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Android & LiMo + Open NET

http://en.wikipedia.org/wiki/Android_(operating_system)

http://en.wikipedia.org/wiki/Androidhttp://en.wikipedia.org/wiki/LiMo_Foundationhttp://en.wikipedia.org/wiki/LiMo_Platform

http://www.opennet.ru/opennews/art.shtml?num=15939

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The Open Handset Alliancehttp://www.t-mobileg1.com/

http://en.wikipedia.org/wiki/Open_Handset_Alliance

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OpenMoko “Free Your Phone..."Openmoko has launched an

educational program about mobile device design at National Tsing Hua University of Taiwan

http://www.openmoko.com/http://en.wikipedia.org/wiki/Openmoko

http://www.linuxdevices.com/news/NS6565189083.html

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Neo FreeRunnerhttp://en.wikipedia.org/wiki/Neo_FreeRunner

http://en.wikipedia.org/wiki/Openmoko_Linux

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N E O

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Generic access network

Corenetwork

Switchingnode

Residential

Business

Acc

ess

node

Remoteelectronics

Flexibilitypoint

Fibre, copper, radio etc

Customer Last drop Feeder Local exchange Core network

• Often referred to as the “last mile” or “first mile”• Dominated today by twisted pair copper cable• Traditionally, has only had to accommodate voice traffic. Now many

more demands are being placed on the access network - data, multimedia etc

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Access network topology

PCP - primary cross-connection pointDP - distribution point

Customer connections

4800/.324800/.32

2400/.42400/.4

1000/.41000/.4PCP PCP

PCPPCP

1000/.41000/.4

2400/.42400/.4 1000/.41000/.4

500/.4500/.4

200/.4200/.4

20/.520/.5100/.5100/.510/.510/.5

10/.510/.5

ExchangeExchange

Manhole orManhole orfootway boxfootway box

Distribution PointDistribution Point

E-side cable (pairs/mm)E-side cable (pairs/mm)

D-side cable (pairs/mm)D-side cable (pairs/mm)

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Attenuation

Atte

nuat

ion

(dB

/km

)

Frequency (kHz)1 1000

0.1

1.0

10

10 100

0.9 mm Cu

0.32 mm Cu

Attenuation is a function of frequency due to the “skin-effect”

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VDSL• Broadband services could do with a higher data transfer rate than ADSL can

support• The same principles as ADSL (clever DSP) can be applied to address this by

limiting the reach of the system• VDSL supports data rates to over 50 Mbit/s to the customer thereby enabling

support of these very broadband services• The shorter reach of VDSL though means that data must be carried from the

exchange to a point close to the customer (see later)

PCP

Exchange Existing E-side Cables Existing D-side Cables

VDSL Cabinet

New Fibre Feed

Bit rate (Mbit/s) Reach Suitability13 1.5 km FTTCab26 1.0 km FTTC/FTTB52 300 m FTTB

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Passive Optical Networks

OLT

SPLITTER

ONU

ONU

ONU

Local

Exchange

PCP

Cabinet

Customer

Premises

Optical Line Termination

Optical Network Unit

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UMA Backhaul Approach

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GSMOB

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Interference

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LAN / WAN

Voice Network

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VoiceTelephony & Voice Mail

Unified MessagingConferencing

Find-Me-Follow-MeCall Center

VideoMessaging/MailConferencing Surveillance

CollaborationInstant Messaging

eMeetingsWeb Conferencing

Business AppsCRM, Supply Chain, Call

Center

IntegrationWEB-Portal, Desktop, Devices and

Server-Business Process

Presence

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Lingidhttp://www.3gpp.org/GERANhttp://en.wikipedia.org/wiki/GERANhttp://en.wikipedia.org/wiki

/Unlicensed_Mobile_Accesshttp://www.dectweb

.com/News&Views/Features/9906Dectweb.htm

http://www.riigiteataja.ee/ert/act.jsp?id=13060116