pdf_gross.gifUMTS - Design Details & System Engineering

backtotop.gifShort Introduction to UMTS

Course Description

  • Basic 3G Objectives
    The View ahead towards IMT 2000 / Early first steps, Major Requirements and Design Targets
  • Global Architecture
    The CS Domain, The PS Domain., The BC Domain.
  • UMTS Architecture – Release 1999
  • UMTS Architecture – Release 4
  • UMTS Architecture – Release 5
  • The UMTS Architecture Model
    The logical aspect, The functional aspect
  • Interconnection of the Various Network Elements
    Interfaces within the NSS, Interfaces within the RNS and towards the NSSs
  • Radio Access Network
    Tasks and Functions of the Node B, Tasks and Functions of the RNC, Roles of a Radio Network Controller
  • Major Changes from GSM to UMTS
    Macrodiversity, RAKE Receiver, Handover Procedures, Cell Breathing, AMR Speech codec
  • Bearer Architecture
  • User Equipment in UMTS
    CS mode, PS / CS mode, PS mode, Terminal Technology, UE Radio Access Capabilities

backtotop.gifUnderstanding CDMA and W-CDMA

  • SDMA (Space Division Multiple Access)
    Cellular topologhy, Sectorization, Adaptive antennas
  • FDMA (Frequency Division Multiple Access)
  • TDMA (Time Division Multiple Access)
  • Hybrid TDMA / FDMA
  • CDMA (Code Division Multiple Access)
    Characteristics of Spread Spectrum Systems, Frequency Hopping Spread Spectrum (FH-SS), Direct Sequence Spread Spectrum (DS-SS)
  • Spreading Codes
  • Spreading and Despreading
    Spreading, Despreading
  • CDMA Correlation Receiver
    Spreading Gain
  • Code Properties
    Pseudo Noise Code, Orthogonal Code
  • Data transmission in UTRAN FDD
    Channelization, Scrambling
  • Impact of Channelization
    Chip rate, Spreading Factor (SF)
  • Scrambling
    Improved synchronization, Preserved crosscorrelation, Signal separation, Code reuse
  • Channelization vs. Scrambling
  • Codes and Data rate
    Downlink

backtotop.gifUMTS Terrestrial Radio Access (UTRA)

  • UTRA Radio Interface Architecture
    Signaling Radio Bearers (SRB), User Plane Radio Bearers (RB)
  • Channel concepts in UTRAN
    Logical Channels, Transport Channels, Physical Channels
  • Logical Channels
    Control Channels, Traffic Channels
  • Transport Channels
    Common Transport Channels, Dedicated Transport Channels
  • Logical Channel Mapping
  • Selection of Transport Channel Type
    Service type, Load of Common Channels, Interference Level, Data Amount
  • Code Division versus Time Division
    Code Division, Time Division
  • Data Transfer on Transport Channels
    Transport Block, Transport Block Set, Transport Block Size, Transport Block Set Size, Transmission Time Interval (TTI)
  • Transport Format (TF)
    The dynamic part, The semi-static part, Transport Format Set (TFS), Transport Format Indicator
  • Transport Channel multiplexing
  • Example for RB and SRB configuration
    SRB #1, SRB #2, SRB #3, SRB #4
  • Main Functions of the Physical Layer
    Channel Coding, Transport Channel Multiplexing, Mapping of Transport Channels onto Physical Channels, Spreading and Modulation, Power Control
  • Uplink Data Processing Path
    CRC Attachment, Transport Block Concatenation / Code Block Segmentation, Channel Coding, Radio Frame Equalization, 1st Interleaving, Radio Frame Segmentation, Rate Matching
  • Channel Coding
  • Interleaving
  • Data Processing Path for 28.8 kbps bearer
  • Data Processing Path for 3.4 kbps signaling bearer
  • Transport Channel Multiplexing
  • Physical Channels
    Specific carrier frequency, Scrambling code, Channelization code, Time duration
  • Physical Channels carrying Transport Channel
    Common Physical Channels, Dedicated Physical Channels, DPDCH, PRACH, PCPCH, P-CCPCH, S-CCPCH, PDSCH
  • Mapping of Transport Channels onto Physical Channels
  • Physical Channels needed for System Operation
    DPCCH, CPICH, SCH, AICH, CSICH, AP-AICH and CD/CA-ICH, PICH
  • Frame Structure of UL DPDCH
    DPCCH / DPDCH, DPCCH
  • Data rates on Uplink DPDCH
  • Realization of Variable Bit Rate in Uplink
  • Frame Structure of Downlink DPDCH
    DPCCH / DPDCH, DPCCH
  • Data rate on Downlink DPDCH
  • I/Q Code Multiplex versus Time Multiplex
    I/Q Code Multiplex, Time Multiplex, Time Multiplex QPSK, I/Q Code Multiplexed QPSK
  • Uplink Spreading and Modulation
  • Combining Uplink Physical Channels
    Uplink
  • Downlink Spreading and Modulation
  • Combining Downlink Physical Channels
    Downlink
  • Power Control
    Uplink Power Control, Downlink Power Control, Open Loop Power Control, Closed Loop Power Control
  • Soft and Softer Handovers
    Soft Handover, Softer Handover
  • Site Selection Diversity Transmission (SSDT)
  • Relocation

backtotop.gifUTRAN Physical Layer Details

  • Channel Types for Data Transfer
    Dedicated Channels, Common Channels, Shared Channels, Uplink Radio Frame Structure, Downlink Radio Frame Structure
  • Cell Search Procedure
    CPICH, P-SCH, P-CCPCH, Slot synchronization, Frame synchronization and code group identification, Scrambling code identification, Differences between the codes
  • System Information Blocks (SIB)
    SIB Scheduling, SIB Transmission, System Information Messages, SIB Schedule Example, Data Processing Path for System Information Message
  • RACH Procedure
    RACH Access Slots, RACH Preamble Code, PRACH / AICH Timing, AICH Signature, PRACH Message Code
  • CPCH Access Procedure
    PCPCH / AICH Timing
  • Power Control Preamble
  • Downlink Shared Channel
  • Paging Indicator Channel
    PICH / PCH Association
  • Radio Frame Timing
  • Uplink / Downlink Timing at UE
  • Rate Matching
    Rate Matching Attribute, Rate Matching Procedure
  • Compressed Mode
    Dual Receiver:, Frame Structures for Compressed Mode, Transmission Gap Position, Methods for Compressed mode, Impact of Compressed Mode, Slot formats for Compressed mode

backtotop.gifLower Layer Functions and Protocols

  • UTRAN Radio Interface Protocol Reference Model
    Control plane, User plane, Physical Layer, Layer 2 (RLC and MAC) Data Flow
  • Media Access Control (MAC) Layer
    MAC Services, MAC Functions, MAC Layer Architecture, MAC Layer Data Processing, Traffic Monitoring, Buffer Control, MAC PDU Header, MAC Header Formats, MAC Header and Channel Mapping, MAC Header Allocation
  • Radio Link Control (RLC) Layer
    RLC Services, RLC Functions, RLC Layer Data Processing (acknowledged mode), RLC PDU Format, RLC AMD Status and Padding Indication
  • Radio Resource Control (RRC) Layer
    RRC Services, RRC Functions, RRC Layer Model, RRC Message Encoding
  • Packet Data Convergence Protocol (PDCP)
    PDCP Services, Header Compression of IP Data Streams, Lossless SRNS Relocation, PDCP PDU Format
  • Broadcast / Multicast Control (BMC)
    BMC message Format

backtotop.gifUTRAN Protocols (Iub, Iur, Iu)

  • Abstract Syntax Notation One (ASN.1)
    Packet Encoding Rules (PER), Encoding Rules Comparison (Example)
  • UTRAN Generic Protocol Layer Structure
    Radio Network Layer – User Plane, Radio Network Layer – Control Plane
  • Iub Frame Protocol (Iub FP)
    DCH Iub/Iur FP Services, DCH Data PDU Format, UTRAN Synchronization, DCH Control PDU Format, Common Channel Iub FP Services, Common Channel Data PDU Format (at Iub), Common Channel Control PDU Format (at Iub)
  • Node B Application Part (NBAP)
    NBAP Functions, Iub Signaling Environment
  • Iu Frame Protocol (Iu FP)
    Transparent mode, Support mode, Iu FP PDU Format, Iu FP Frame Types, Time Alignment
  • Radio Access Network Application Part (RANAP)
    General control services, Notification services, Dedicated control messages, RANAP Functions

backtotop.gifTransport Network Protocols

  • UTRAN Generic Protocol Layer Structure
    Transport Network Structure, Transport Network Protocols, ATM Layer
  • ATM Adaptation Layers - AAL
    Transport Network Protocols (at Iub), AAL2 Sublayers, AAL5 Sublayers, Service Specific Connection Oriented Protocol (SSCOP), Coordination Functions, Transport Network Layers Data Handling
  • Access Link Control Application Part (ALCAP)
  • Transport Network Protocols (at Iu – CS Domain)
  • Transport Network Protocols (at Iu – PS Domain)
    Alternative Transport Network Protocols (at Iu – PS Domain)

backtotop.gifMobility Management, Quality of Service and Security

  • Mobility Management Procedures
    Location concepts, UE Identifiers in UTRAN, User Equipment Registration, Mobility Management State Model, RRC States, Service States and RRC Modes (Example)
  • Quality of Service Classes
    QoS attributes, QoS classes and attributes, Release 99 attributes
  • Security Procedures
    2G Security Challenge, Security Features, Authentication and Security Parameters, Authentication Vector (Quintet), User Authentication, Network Authentication, Ciphering, Integrity Protection

backtotop.gifConnection Management and Selected Scenarios

  • Signaling Connection Management
  • Non Access Stratum Messages Exchange
  • Elementary Procedures
  • State Transition during Packet Flow
  • Mobile Originated Call Establishment
    RRC Connection Setup, Iub Bearer Setup, Signaling Connection Establishment, Authentication, Security Mode Setup, CS Call Establishment, RAB Establishment, Radio Bearer Establishment, Iu Bearer Establishment, CS Call Release, RAB Release, Radio Bearer Release, Iu Bearer Release, RRC Connection Release, Iu Bearer Release
  • AMR Speech Connection Establishment
    AMR Codec Generic Format, RAB Subflow Assignment, RAB Subflow Combination Set, Iu Bearer Establishment, Iu FP Initialization, Downlink AMR Data Transfer, AMR – AAL2 Transmission
  • Packet Data Transaction Establishment
    PS Transaction Establishment, PS Transaction Release
  • Soft Handover
    Measurement Reporting, Radio Link Addition, Active Setup Update, Active Setup Update Remove, Radio Link Deletion
  • Variable Rate Transmission of Uplink DCHs

v2.2

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