pdf_gross.gifInside UMTS -
Technology & System Operation

[2-day course, Euro 2,350.- (net) per participant]

backtotop.gifWhat are 3G Mobile Systems

Course Description

  • Changing Environment and 2nd Generation Limitations
    The basis of GSM, Successful Growth and new Service Requirements, GSM’s Limitation
  • Basic 3G Objectives
    The View ahead towards IMT 2000 / Early first steps, Major Requirements and Design Targets
  • Towards the IMT-2000 Family of Standards
    Europe, Japan, Korea, Standardization Activities
  • Recommendations from Operators Harmonization Group
    Operators Harmonization Group, Family of CDMA modes and core network systems
  • The IMT-2000 Family
    IMT-DS the wideband CDMA FDD solution, IMT-TC the wideband CDMA TDD solution, IMT-MC the multi carrier solution derived from IS-95 / cdma2000, IMT-SC the single carrier solution derived from IS-136 / UWC-136, IMT-FT the frequency / time solution derived from DECT, Summary of technical parameter
  • The Frequency Spectrum for IMT-2000
  • Standardization Committees
    3GPP, 3GPP2
  • What is UMTS?
    The global view
  • The Global Architecture
  • The UMTS Architecture Model
    The logical aspect, The functional aspect
  • UMTS Architecture – Release 1999
  • UMTS Architecture – Release 4
  • UMTS Architecture – Release 5
  • Additional Specific Mobile System Entities
    Group Call Register (GCR), Gateway Location Register (GLR), Location Services (LCS), Virtual Home Environment (VHE), Super-charger, Turbo-charger
  • The Business Perspective of UMTS
    Voice Services, Video Services, Just in Time, Needed co-operations!?

backtotop.gifIntroduction to UMTS

  • The Core Network in UMTS
    The CS Domain, The PS Domain.
  • The Interconnection of the Various Network Elements
    Interfaces within the NSS, Interfaces within the RNS and towards the NSSs
  • Tasks and Functions of the MSC
    Transmission of voice and data signals between the MSC and the various RNCs (<=> Circuit Switching)
  • Tasks and Functions of the VLR
    Mobility Management for circuit switched traffic
  • Tasks and Functions of the GMSC
    Interface between the PLMN and external circuit switched networks
  • Tasks and Functions of the SGSN
    Routing of Data Packets between the GGSN and the various RNSs (<=> Packet Switching), Mobility Management for packet switched traffic, Charging (own network resources)
  • The UMTS Mobile-services Switching Center (UMSC)
  • Tasks and Functions of the GGSN
    Interface between the PLMN and external Packet Data Networks, Anchor Function for Packet Data Transfer, Charging (foreign network resources)
  • Backbone Networks
    The intra-PLMN backbone, The inter-PLMN backbone
  • Charging and Billing
    PS domain, CS domain
  • The Gateway Location Register (GLR)
  • CAMEL
    CAMEL principle, CAMEL Services (Examples)
  • Mobile station Execution Environment (MexE)
  • Virtual Home Environment (VHE)
  • Location Services (LCS)
    Location Services (LCS) Categories
  • UE Positioning Methods
    Cell ID, Cell Global ID, Observed Time Difference of Arrival, Global Positioning Satellite
  • Location Services Network Architecture
  • Service Access
    Example
  • The Radio Access Network
  • The User Equipment in UMTS
    CS mode, PS / CS mode, PS mode
  • Terminal Technology
  • Major Changes from GSM to UMTS
    Macrodiversity, RAKE Receiver, Handover Procedures, Cell Breathing, AMR Speech codec
  • UMTS Network roll out
    New Operator, Incumbent Operator
  • Virtual Network Operator
  • Shared Networks
    Shared UTRAN, Shared Network, Shared Operation, Shared Applications

backtotop.gifUnderstanding CDMA and W-CDMA

  • SDMA (Space Division Multiple Access)
    Cellular topologhy, Sectorization, Adaptive antennas, Principle of 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, Uplink
  • Power Control Challenge
  • 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.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
  • Data rate on Downlink DPDCH
  • Uplink / Downlink Timing at UE
  • 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
  • Cell Search Procedure
    CPICH, P-SCH, P-CCPCH, Slot synchronization, Frame synchronization and code group identification, Scrambling code identification, Differences between the codes
  • Physical Layer Procedures
    RACH Procedure, CPCH Access Procedure
  • UTRAN Generic Protocol Layer Structure
    Transport Network Layer, Radio Network Layer – User Plane, Radio Network Layer – Control Plane
  • UTRAN Radio Interface Protocol Reference Model
    Control plane, User plane

backtotop.gifHigher Layer Procedures

  • Mobility Management Procedures
  • Location concepts
    Location Area, Routing Area, UTRAN Areas, UTRAN Registration Area Example
  • UE Identifiers in UTRAN
    C-RNTI, S-RNTI, S-RNC Identifier, U-RNTI
  • User Equipment Registration
  • Mobility Management State Model
  • RRC States
    CELL_DCH, CELL_FACH, CELL_PCH, URA_PCH
  • Service States and RRC Modes (Example)
  • Quality of Service Classes
    Conversational class, Streaming class, Interactive class, Background class
  • QoS attributes
  • Release 99 attributes

backtotop.gifSelected Scenarios

  • Mobile Originated Call Establishment – 1st Scenario
    RRC Connection Setup, Iub Bearer Establishment, 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, Iub Bearer Release
  • Mobile Originated Call Establishment – 2nd Scenario
    RRC Connection Establishment, Signaling Connection Establishment, Radio Bearer Establishment

v2.4

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