sideseadmed (irt0040)
DESCRIPTION
Sideseadmed (IRT0040). Avo LOENG 13. apr 2009. Free mobile (drive) Restricted mobile (walk) Fixed wireless trunking Fixed wireless extension Fixed wireless access Nomadic wireless ………………. CDG WATM WG 3GPP/3GPP2 MWIF WCA PCIA WAP. Applications. ITU IMT2000 ITU WAS (JRG8A-9B) - PowerPoint PPT PresentationTRANSCRIPT
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Sideseadmed (IRT0040)
AvoLOENG
13. apr 2009
2
Multi-Dimensional - Wireless
TechnologiesA
pp
lica
tion
s
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
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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
Att
enua
tion
(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 Suitability
13 1.5 km FTTCab
26 1.0 km FTTC/FTTB
52 300 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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10
GSMOB
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Interference
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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/GERAN
http://en.wikipedia.org/wiki/GERAN
http://en.wikipedia.org/wiki/Unlicensed_Mobile_Access
http://www.dectweb.com/News&Views/Features/9906Dectweb.htm
http://www.riigiteataja.ee/ert/act.jsp?id=13060116