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3G architecture and protocols

A Seminar on. 3G architecture and protocols. Outline. Concept of mobile communication Network Architecture Procedures in UMTS IP Initiative. Concept of Mobile Communication. Features :.

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3G architecture and protocols

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  1. A Seminar on 3Garchitecture and protocols

  2. Outline Concept of mobile communication Network Architecture Procedures in UMTS IP Initiative

  3. Concept of Mobile Communication Features: Mobile communication is the communication between mobile bodies or that between mobile body and fixed body. • Mobility • Radiopropagation

  4. GSM Wideband Service CDMA IS95 TDMA IS-136 PDC Evolution of Mobile Communications 3G (IMT-2000) 1G 2G WCDMA AMPS Speech Data Speech CDMA2000 TACS NMT UWC 136 Others DECT Digital WidebandMultimedia Analog

  5. WHY 3G ? ? • HIGHER TRANSFER RATE • PACKET-SWITCHED NETWORK • GLOABALISED ROAMING • REAL TIME APPLICATIONS • VIDEO ON DEMAND

  6. ARCHITECTURE ACESS NETWORK USER EQUIPMENT CORE NETWORK Uu Interface Iu Interface

  7. User Equipment Mobile equipment USIM Mobile Terminal Terminal eq’ment

  8. 1) Mobile Termination UE Functions Radio Attachment Speech Encoding/Decoding Radio Channel management Rate Adaptation Man-Machine Interface Mobility Management

  9. 2) Terminal Equipment • Control of Hardware • Access to Services 3) USIM Universal Subscriber Identity Module • Identity of Subscriber • IMSI • Subscriber Related Information

  10. UE Protocols • Access Stratum Protocol • Non-access Stratum Protocol Classification of UE • Single Radio Mode • Multi-Radio Mode

  11. TDD D U D D D D D D FDD D D D D D D D U Downlink D Uplink Unused U WCDMA Overview • Direct-sequence CDMA • Wideband • Synchronization Aspect • Modes of Operation

  12. Access Network TO CORE NETWORK BSS RNS BSC RNC BTS BTS NODE B NODE B

  13. Node-B

  14. Functions of UTRAN • Transfer of User Data • System Access Control • Security Functions • Mobility Management • Radio Resource Management • Broadcast/Multicast Services

  15. UTRAN Protocols • Physical Layer • MAC Protocol • Radio Link Control • Packet Data Convergence Protocol • Broadcast/Multicast Control • Radio Resource Control

  16. RNC Appearance Blank panel Power supply Cooling fan Sub-rack Cable tray Dust coverage

  17. CORE NETWORK Entities of core network • Home Location Register • Authentication Center • Equipment Identity Register • SMS Entities • Visitor Location Register

  18. Entities of core network • Mobile Switching Center (MSC) • GATEWAY MSC • SGSN • GGSN • GMLC Serving GPRS Support Node Gateway GPRS Support Node Gateway Mobile Location Center

  19. Functions of Core Network • Mobility Management • Call Handling • Session Management • Messaging Services • Security Functions • Supplementary Services

  20. Procedures in UMTS • Radio Resource Control Procedures • Mobility Management • Call Handling • Session Management

  21. Radio Resource Control CELL_PCH CELL_FACH CELL_DCH URA_PCH ---------------------------------------------------------------------------------------- IDLE MODE

  22. Paging • To establish signaling connection • Cell update procedure • Master information Block Info. • Dedicated paging

  23. RRC connection SETUP UTRAN MS MS in IDLE mode RRC connection request RRC connection setup MS in Connected mode RRC connection release

  24. Call Handling GMSC M S VMSC M S VMSC VLR VLR HLR Control signaling Data path

  25. Session Management GGSN SGSN RNC PDCP Gn/Gp interface Uu interface Iu interface

  26. Mobility Management

  27. Mobility Management

  28. IP Initiatives • SIGTRAN signaling transport it includes many protocols like MTP3, ISUP, SCCP, TCAP, MAP etc. Functions • Flow Control • in-sequence delivery • Logical Identification • Error Detection • SCTP

  29. IP Multi-media • JAVA/html Applications • SIP Session initiated protocol to IP Based network IMS Session initiated protocol UTRAN PS Domain to PSTN Network

  30. Thank you

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