pdf_gross.gifEGPRS - Design Details & System Engineering

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

A Comparison Between GPRS Rel. 99 and EGPRS

Course Description

  • International Frequency Allocation
  • The EDGE Family
    EGPRS, ECSD, Compact EDGE, UWC-136
  • EGPRS Specific Changes
    Changes of the Protocol Stack, EGPRS Specific Hardware Upgrades, Options for Routing 64 kbit/s Channels to the BTS, Comparison of GPRS and EGPRS in the Physical Layer, Comparison of GPRS and EGPRS in the RLC/MAC Protocol, Comparison of GPRS and EGPRS in the Higher Layers
  • Improvements of EGPRS vs. GPRS
    Alternative Modulation Scheme 8-PSK, Enhanced BEC, Enhanced FEC, Enhanced Network Access

backtotop.gifThe Physical Layer of EGPRS

  • Modulation Schemes in GSM
    The In-Phase – Quadrature (I/Q) Presentation, GMSK-Modulation, 8-PSK Modulation, 3PI/8 Offset 8-PSK
  • Consequences of Using 8-PSK Modulation
    Higher Throughput Rate over the Air, Interference Vulnerability, Amplifier Constraints, Shrinking Cells
  • EGPRS and GPRS – Concerns for Simultaneous Operation
    USF-Detection, 8-PSK Reception by a GPRS-only Mobile Station, Blind Detection, Synchronization of GPRS and EGPRS Mobile Stations, USF Detection Issues

backtotop.gifForward Error Correction and Channel Coding

  • The Data Processing Chain
    Channel Coding, The Effects of Channel Coding, The Perspective of the Receiver, The Channel Decoding Process
  • Puncturing
    The Principle of Puncturing, Puncturing in GSM, GPRS and EGPRS, The Perspective of the Receiver, Using Different Puncturing Schemes for Retransmission, Puncturing Scheme Selection
  • Incremental Redundancy
    Principles, Incremental Redundancy – Operation in the Decoder
  • Tail Bits
    Reasons for Appending Tail Bits, Disadvantages of Tail Bits, Example for Tail Bits in Operation
  • Tail Biting
    The Concept of Tail Biting, Pros and Cons of Tail Biting
  • The Modulation and Coding Schemes in EGPRS
    Overview of Channel Coding in EGPRS, MCS-1 – MCS-4 in Downlink (Header Type 3), MCS-1 – MCS-4 in Uplink (Header Type 3), MCS-5 and MCS-6 in Downlink (Header Type 2), MCS-5 and MCS-6 in Uplink (Header Type 2), MCS-7 – MCS-9 in Downlink (Header Type 1), MCS-7 – MCS-9 in Uplink (Header Type 1)
    Distinction of the Header Types 1, 2 and 3
  • The Data Block Families
    Data Block Family A, B and C, Family A Padding
  • Throughput Rates with MCS-1 – MCS-9
    Facts Sheet for MCS-1 – MCS-9, Graphical Presentation of the Performance of MCS-1 – MCS-9

backtotop.gifEstablishment, Operation and Release of Packet Transfer Mode

  • Overview
    Access to the Network / Access to the Mobile Station, Resource Allocation / Uplink & Downlink, TBF-Active / TBF-Operation, TBF Release / Uplink & Downlink
  • Network Access Mechanisms in EGPRS
    Applicable Network Access Messages, Format and Use of the EGPRS_PACK_CHAN_REQ-Message, One- and Two-Phase Packet Access Procedure in EGPRS, Network Access on CCCH, EGPRS One-Phase Packet Access on CCCH in Detail, EGPRS Single Block Packet Access on CCCH in Detail, Network Access on PCCCH, EGPRS One-Phase Packet Access on PCCCH in Detail, EGPRS Two-Phase Packet Access on PCCCH in Detail
  • EGPRS TBF Operation
    TBF-Operation Modes
  • Acknowledged Operation – Important Aspects
    The Window Size ‘k’, Maximum Number of Retransmissions, Acknowledgements, Roundtrip Time ( Window Size, The Window Size in EGPRS, Polling for Downlink Acknowledgements in EGPRS, Interpretation of the Reported Bitmap (RB), Compression of the Reported Bitmap (RB)
  • TBF Operation with ARQ I (Resegmentation)
    The Perspective of the Receiver, Determination of Suitable MCS for Retransmission, ARQ I in Operation
  • TBF Operation with ARQ II (Incremental Redundancy)
    The Perspective of the Receiver, Determination of Suitable MCS for Retransmission, ARQ II in Operation
  • Uplink TBF-Release in EGPRS
    Overview, The Countdown Procedure in EGPRS

backtotop.gifFormal Considerations of the RLC/MAC Protocol

  • Specific RLC/MAC-Messages with EGPRS
    EGPRS_PACK_CHAN_REQ, ADD_MS_RAD_ACC_CAP, EGPRS_PACK_DL_ACK
  • The RLC/MAC Data Block Formats with EGPRS
    Downlink RLC/MAC Data Block Format with Header Type 3, Downlink RLC/MAC Data Block Format with Header Type 2, Downlink RLC/MAC Data Block Format with Header Type 1, Uplink RLC/MAC Data Block Format with Header Type 3, Uplink RLC/MAC Data Block Format with Header Type 2, Uplink RLC/MAC Data Block Format with Header Type 1
  • Information Elements within the RLC/MAC Data Blocks
    The Uplink State Flag (USF), The EGPRS Supplementary / Polling Field (ES/P), The Relative Reserved Block Period Field (RRBP), The Temporary Flow Identity Field (TFI), The Power Reduction Field (PR), The Block Sequence Number Fields (BSN 1 and BSN 2), The Coding and Puncturing Scheme Field (CPS), The Split Block Indicator Field (SPB-field), The Extension Bit (E-bit) in the Mandatory Part of the RLC-Header, The Final Block Indicator Bit (FBI-bit), The Retry Bit (R-bit), The Stall Indicator Bit (SI-bit), The Countdown Value Field (CV), The Resent Block Bit (RSB-bit), The Packet Flow Identifier Indicator Bit (PI-bit), The TLLI Indicator Bit (TI-bit), The Extension Bit (E-bit) and the Length Identifier Field (LI-field), The Packet Flow Identifier Field (PFI-field), Spare Fields

v1.5

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