3G architecture and protocols Seminar on 3G architecture and protocols

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

Concept of Mobile Communication Mobile communication is the communication between mobile bodies or that between mobile body and fixed body. Features : Mobility Radio propagation

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

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

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

User Equipment Mobile equipment USIM Mobile Terminal Terminal eq’ment

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

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

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

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

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

Node-B

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

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

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

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

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

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

Procedures in UMTS Radio Resource Control Procedures Mobility Management Call Handling Session Management

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

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

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

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

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

Mobility Management

Mobility Management

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

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

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