UMTS, EGPRS & GSM
Updates with Rel. 5, 6, 7 & beyond

Overview of important Release 5 Features

Course Description

Major Architectural Changes
- GERAN in A/Gb- or Iu-Mode
- Iu-Flex
- The IP-Multimedia Subsystem
- Iub- and Iu-cs-Interfaces IP-based
- Upgrading the HLR to become the Home Subscriber Server
Major New Features
- HSDPA
- SIP as IP-based Session Control Protocol
- Additional Multislot Classes

The IP-Multimedia Subsystem
- What is the IMS?
- Service Perspective of the IMS
  - Service Types and Service Enablers
  - Conversational Services
  - Audiovisual Entertainment Services
  - Service Enablers
- Description of the IMS-Network Architecture Overview
  - The IMS within the 3GPP-Network Architecture
- The Perspective of the IMS User Agent
  - Typical User Agents of the IMS
  - Mobile Handset - Today
  - Mobile Handset - Future
  - IMS-related User Identities
- Protocols of the IMS (Perspective of User Agent)
  - SIP and SIP-Operation
  - Session Description Protocol
  - Real-time Transport Protocol (RTP)
  - Session Setup Example through SIP
GERAN-Operation in Iu-Mode
- Core Network Interconnection using Iu-Interfaces
- Protocol Stacks / Packet-Switched Domain
  - Control Plane
  - User Plane
- Physical Channels in Iu-Mode
  - Logical Channel Mapping Rules on DBPSCH
  - Logical Channel Mapping Rules on SBPSCH
  - Channel Mapping Example
The Iu-Flex Feature
- Packet-Switched Pool Areas
- Circuit-Switched Pool Areas
- Core Network Node Selection Function
- Affected Network Nodes
HSDPA
- Targets
- Performance Figures
- HARQ-Techniques with HSDPA
- New Channels with HSDPA
- Fast Resource Scheduling in HSDPA
- Timing Relation between HS-DPCCH and HS-PDSCH

Architectural Changes
- Adoption of Alternative RAT’s
- Access Network Sharing
  - Architecture Option 1: GWCN
  - Architecture Option 2: MOCN
  - Operation in case of MOCN
- MBMS
Major New Features – UTRA-related
- Introducing HSUPA
- Introducing Advanced Receiver Performance
- The HSDPA-Enhancements
- Additional Frequency Bands for UTRA
Major New Features – 2G and 2.5G Radio Related
- Packet-Switched Handover in A-/Gb-Mode of Operation
  1 Operation / Message Flow
- Multiple TBF’s in A-/Gb-Mode of Operation
- Flexible Layer One (FLO)
Major New Features – Upper Layers
- IMS-Enhancements
- Generic Authentication Architecture (GAA)
- UL-TDOA
- W-AMR+ Codec
- EAP-SIM and EAP-AKA

MBMS
- Detailed View on the MBMS-Protocol Stack
  - User Service Level
  - Bearer Level
- New Channels with MBMS
HSUPA
- Performance Considerations
- Multicode Operation with HSUPA (Category 6 User Equipment with 4 x E-DPDCH)
  - The I/Q-Plane View of HSUPA: Is it really QPSK?
  - Practical Exercise: Determine the Sum-Signal of the Q-Branch for this Category 6 UE
- The Protocol Stack of HSUPA
- Operation of HSUPA
  - Review: SIR Considerations in a CDMA-system
  - Resource Sharing of UL-Resources in HSUPA
  - Absolute Grants and Relative Grants
- Description of the new Channels with HSUPA
Adoption of Alternative RAT’s
- Interconnection Options for Alternative RAT’s
  - I-WLAN Operation from the User’s Perspective
- Security Procedures in case of alternative RAT’s
  - The EAP-SIM Procedure
  - The EAP-AKA Procedure
  - IKEv2
- Details of GAN/UMAN-Access
  - Network Architecture
  - Mobile Station Operation Modes
  - Protocol Stacks
  - Operation
- Details of I-WLAN Direct IP-Access
  - Network Architecture
  - Attachment and Operation
- Details of I-WLAN 3GPP IP-Access
  - Network Architecture
  - Protocol Stack
  - Attachment and Operation
- Practical Exercise: Differentiation of Alternative RAT-Interconnection Options

IMS-Enhancements with Release 7
- Use of Arbitrary IP-CAN
- Addressing of NAT/NAPT-Issues
- Security Enhancements
Downlink Dual Carrier Operation with Release 7
- Reasons and Preconditions
- Operation and Channel Allocation
- Implications for existing Procedures
MIMO in 3GPP-Networks
- The Basics: Signal Fading Physics between Tx and Rx
- Multiplexing Dimensions
- The Multipath Dimension
  - Zoom into Rx1
  - Equalization – Distinction of Tx1 and Tx2
- Characteristics of SAIC
- Application in MIMO-Systems
- Increased Spectral Efficiency and Higher Data Rates
The Look Ahead: 3GPP’s Long Term Evolution
- Overview
- The AIPN (All IP Network)
- E-UTRA
  - Ideas and Objectives
  - Network Architecture
  - Introduction to OFDM and its use in E-UTRA

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