1 Sidevõrgud IRT 0020 loeng 325. sept Avo Ots telekommunikatsiooni õppetool raadio- ja sidetehnika instituut

2 Mudeli täiendused DiffServ 7 Application 6 Presentation 5 Session 4 Transport 3 Network 2 Data Link 1 Physical e. g. Workflow G.711 / G / G.729 H.323 / H.450 / RTP TCP / UDP IP MAC Transmission Medium D

3 Kihid Füüsiline ( ühendus ) Kanal Võrk Transport Seanss Esitlus Rakendus Application Presentation Session Transport Network Data link Physical SSL, WSP RFC 791 IP, RFC 792 ICMP TCP RFC 793, UDP RFC 768 WAE, HTTP, RFC821,822 ISO IEEE a Cat5, RS-232D

4 Kvaliteet

5 Sidesüsteemi mõjutavad Interception Fraud Hacker Viruses Internet VPN

6 Kvaliteet IP-võrgu kaudu IP (LAN) Router Peakorter Harukontor IP (WAN) IP (LAN) Router QoS

The Internet Every machine transparently connected to every other

8 The Problem only nodes on the same physical/link layer network could communicate

9 Solution Gateways

10 TTT GW SCN MCU GK Piirkonnad ja piirpinnad T T

Juurdepääsu viisid võrku Terminaal Raadioühendus Võrk Teenused Phone PDA laptop 60 GHz 40 GHz 17 GHz 5 GHz WLAN WLL Satellite ATM Internet Intranet …….. speech video QoS data best-effort data

12 STM Mb/s VCI-100 VCI-101 VCI-100 VCI-101 VPI-10, 50 Mb/s VPI-20, 60 Mb/s Virtuaalsed teed ja kanalid (VPI, VCI)

13 WCDMA kanalid Base Station (BS) User Equipment (UE) P-CCPCH- Primary Common Control Physical Channel SCH - Sync Channel P-CPICH - Primary Common Pilot Channel S-CPICH - Secondary Common Pilot Channel(s) Channels broadcast to all UE in the cell DPDCH - Dedicated Physical Data Channel DPCCH - Dedicated Physical Control Channel F-PDSCH - Physical Downlink Shared Channel Dedicated Connection Channels PICH - Page Indication Channel Paging Channels S-CCPCH - Secondary Common Control Physical Channel PCPCH - Common Physical Packet Channel AP-AICH - Acquisition Preamble Indication Channel CD/CA-AICH - Collision Detection Indication Channel CSICH - CPCH Status Indication Channel PRACH - Physical Random Access Channel AICH - Acquisition Indication Channel Random Access and Packet Access Channels

14 N. America Central & S. America W. & E. Europe Middle East & Africa Africa APAC 2.5 & 5.8 GHz 2.5, 3.5 & 5.8 GHz 3.5 & 5.8 GHz Licensed Bands 2.5GHz ( ; ) 3.5GHz ( ) Unlicensed Band 5.8GHz ( ) Spectrum Usage

15 Radio Resource Control (RRC) Medium Access Control (MAC) Transport channels - grouped by method of transport Physical layer Layer 3 Logical channels - grouped by information content - User Data - Control and signaling Layer 2 1 Air Interface Direct RRC control of the physical layer Physical channels Physical Channels Distinguished by: - RF Frequency - Channelization Code - Spreading Code - Modulation (I/Q) Phase (uplink) - Timeslot (TDD mode) UTRAN OSI Model

16 Vastastikused häired

17 Side loomine ( connection establishment ) B A Nõudlus Vastus (kinnitus)

18 Network structure (TUT) TUT core network TUT core network Tietotalo ”intra” networks Tietotalo ”intra” networks Interne t Tietotalo public access network Tietotalo public access network Main house public access network Main house public access network Main house ”intra” networks Main house ”intra” networks - public access networks (PAN) isolated from other networks in the edge routers - access from PAN to Internet controlled by access controllers - department ”intranets” may be protected with access control lists / filters in the edge routers - VLANs are used to separate access controllers to own access controller segment - public access network is considered a hostile network like the Internet access controller

19 ISO OSI vs DoD mudel Process/ Application Host-to-Host Internet Network Access

20 T TGT TRR TT T Võrkude ja teenuste ühendamine

21 A Terminal A Terminal B Terminal B Terminal A Portal B Portal Transmission Access Session Service Control Service A Home Service B Home Service A User Service Management A User Service Management B User Service Management B User Service Management Transmission Access Service Terminal Telecom basic service/call control Off-line customer management Extended call control and IN charging Linear Service Architecture in Legacy Network: Static Services Two-Dimension Service Architecture in NGN: Active Services

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23 Protokollid entations.shtml html 04.pdf