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Kommunikatsiooniteenuste arendus IRT0080

Kommunikatsiooniteenuste arendus IRT0080. Loeng 7/2009 Avo Ots telekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst. avo.ots@ttu.ee. Free mobile (drive) Restricted mobile (walk) Fixed wireless trunking Fixed wireless extension Fixed wireless access Nomadic wireless ……………….

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Kommunikatsiooniteenuste arendus IRT0080

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  1. Kommunikatsiooniteenuste arendusIRT0080 Loeng 7/2009 Avo Otstelekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst.avo.ots@ttu.ee

  2. 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) • ETSI UMTS • TIA IS 41/95/136 • MMDS/LMDS/WCS/UNII • ETSI BRAN • IEEE 802.11/15/16 • ……………... Standards Business • Wireless telephony • Wireless internet • Wireless Data • Specialized services • ………………….. • 2G/3G cellular -> 4Gmobile • Wireless Local Loop (WLL) • Broadband Wireless Access (BWA) • Wireless LAN • Satellite Wireless • Microwave Link • Specialized wireless • ……………………. Technologies Services Multi-Dimensional - Wireless

  3. Generic access 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 Access Network Core network Switching node Residential Accessnode Flexibility point Remote electronics Fibre, copper, radio etc Business Feeder Local exchange Core network Last drop Customer

  4. Access network topology PCP PCP PCP PCP E-side cable (pairs/mm) D-side cable (pairs/mm) Manhole or footway box Distribution Point 4800/.32 1000/.4 2400/.4 Exchange 1000/.4 500/.4 2400/.4 1000/.4 200/.4 10/.5 100/.5 20/.5 10/.5 Customer connections PCP - primary cross-connection point DP - distribution point

  5. Attenuation 10 1.0 0.1 Attenuation is a function of frequency due to the “skin-effect” 0.32 mm Cu Attenuation (dB/km) 0.9 mm Cu 1 10 100 1000 Frequency (kHz)

  6. 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) VDSL Cabinet PCP New Fibre Feed Existing D-side Cables Exchange Existing E-side Cables

  7. Passive Optical Networks ONU Optical Network Unit SPLITTER OLT ONU Customer Premises Local Exchange PCP Cabinet ONU Optical Line Termination

  8. UMA Backhaul Approach

  9. GSMOB

  10. Interference

  11. LAN / WAN Voice Network

  12. Voice Telephony & Voice Mail Unified Messaging Conferencing Find-Me-Follow-Me Call Center Presence Video Messaging/Mail Conferencing Surveillance Integration WEB-Portal, Desktop, Devices and Server-Business Process Collaboration Instant Messaging eMeetings Web Conferencing Business Apps CRM, Supply Chain, Call Center

  13. Lingid http://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

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