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Computer and Network Administration

Cellular/Mobile Wireless 2

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  • Overview

    This course provides in-depth coverage of 2G, 2.5G, and 3G mobile cellular standards and related technologies. The first section focuses on the fundamentals of cellular network coverage. Here, an in-depth look at radio sites (or cells), sectors and signal propagation is provided.
    The second section of the course defines both analog and digital modulation schemes. Higher order modulation schemes are illustrated with several common examples of various common methods.
    The third section provides an in-depth look of the frame structure and types of burst methods for GSM. an explanation for each of the logical signaling and traffic channels is provided to allow a better understanding of how GSM network resources are provided allowing a subscriber to make and received digital voice calls.
    The fourth section provides and in-depth analysis of the General Packet Radio Service (GPRS) specifications, which adds capabilities to a GSM RAN. GPRS also introduces new core elements and interfaces for connectivity to external packet networks, such as the Internet.
    Section five is the final section in this course, which provides a detailed description of how 3rd Generation Universal Mobile Telecommunications System (UMTS) functions. The new Wideband CDMA physical layer is covered, along with a description of the logical and physical channels are used in providing higher speed data connections, while supporting circuit-switched calls for legacy circuit-switched voice calls.

  • Who Should Take This Course

    Prerequisites

    It is assumed that participants attending this course:

    • Students must have completed Mobile Wireless Cellular Communications 1

    Since this course focuses on 2nd and 3rd generation standards, it is necessary that the student has a background in the following:

    • Wireless signal propagation
    • Mobile cellular standards organizations
    • Radio Access Networks (RANs)
    • Basic knowledge of multiple access methods
    • Modulation schemes used to improve spectral efficiency for RANs
    • Circuit-switched voice calls
    • Packet-switched data networks with a knowledge of TCP/IP standards
  • Why You Should Take This Course

    Upon completion of this course, students will be able to:

    • Describe mobile cellular signal propagation characteristics
    • List the impairments to signal propagation in mobile cellular networks
    • Sketch the GSM architecture to include all major nodes and interfaces
    • Add the GPRS nodes and interfaces to the GSM architecture sketch
    • Define the GSM TDMA air interface channels and time slots in frequency division duplex mode
    • Define the function of each physical and logical (traffic & control) air interface channel
    • Differentiate between the different modulation and coding combinations used for GSM and GPRS
    • Describe the different elements involved with GSM mobility management and their related functions
    • List each step involved in an end-to-end call set up between a mobile and the GSM core network
    • Compare the different types of handovers supported in a GSM network
    • Identify the different functions involved in digital speech coding in a GSM network
    • Define the IS-95 standards the define a cdmaOne network
    • Show how a CSMA air interface is more spectrally efficient than TDMA
    • Revise the cdmaOne specifications by listing the key attributes that formed the CDMA2000 standard
    • List the modifications made to CDMA2000 to create the EV-DO standards
    • Describe the differences between the UMTS air interfaces: WCDMA (FDD) and TD-SCDMA (TDD)
    • Sketch the UMTS system architecture to include all major nodes and interfaces
    • Define the function of each logical, transport and physical air interface channel for UMTS WCDMA
    • List the UMTS CS and PS core and Radio Access Network (RAN) nodes and interfaces
    • Illustrate the signaling protocol stack for UMTS networks for both CS and PS domains
    • Sketch the various modes and states for the UMTS Radio Resource Control (RRC)
    • Diagram the steps for authentication, ciphering and integrity used in UMTS security
    • Defines the key attributes that defines the 3GPP’s HSPA standards
  • Schedule
  • Course Outline

    1. Fundamentals of Cellular Network Coverage: Cells, Sectors, and Signal Propagation

    a. Relationship Between Base Stations (BSs) and Cells

    b. Dividing Cells into Sectors

    c. IS-95 CDMA: Spreading Codes for Efficient Transmission

    d. Frequency Reuse Factor = 1 for CDMA Networks

    e. Macrocells Defined

    f. Different Types of Macrocell Towers

    g. Macrocell Base Station (BS) Components

    2. Modulation Schemes and Radio Propagation Impairments

    a. Analog Modulation Schemes:

    i. Amplitude

    ii. Frequency

    iii. Phase

    b. Carrier Waves used for Digital Transmissions

    c. Understanding Carrier Modulation: Bits, Bauds & Symbols

    d. Transporting Carrier Symbols

    e. Standard Digital Modulation Techniques

    i. Amplitude Shift Keying (ASK)

    ii. Frequency Shift Keying (FSK)

    iii. Phase Shift Keying (PSK)

    f. Higher Order Modulation Techniques:

    i. Quadrature Phase Shift Keying (QPSK)

    ii. Quadrature Amplitude Modulation (QAM)

    g. Radio Propagation Impairments:

    i. Free Space Path Loss

    ii. Reflection

    iii. Diffraction

    iv. Scattering

    v. Multipath

    h. Multipath Fading in Cellular Radio Links

    i. Fast Fading

    ii. Slow Fading

    3. 2G Mobile Cellular: Global System for Mobile (GSM) Communications

    a. GSM Air Interface Channels

    b. How Voice is Transported in the GSM Frame Structure

    c. GSM Multi-Frame Structure

    d. Different Types of GSM Bursts

    i. GSM Normal Burst

    ii. GSM Frequency Correction Burst

    iii. GSM Synchronization Burst

    iv. GSM Dummy Burst

    v. GSM Access Burst

    e. GSM Logical Channels

    i. Control Channels (CCHs)

    ii. Broadcast CHannels (BCHs)

    iii. Common Control CHannel (CCCH)

    iv. Dedicated Control CHannels (DCCHs)

    v. Traffic CHannels (TCHs)

    vi. Summary of Logical Channels

    f. Overview of GSM Signaling

    i. Network Registration of a Mobile Station

    ii. GSM Location Update

    iii. Types of GSM Handovers

    iv. Signal Processing in GSM: Transmission and Decoding

    v. Mobile Originated Call Sequence

    vi. Mobile Terminated Call Sequence

    4. General Packet Radio Service (GPRS)

    a. GPRS Architectural Diagram with Interconnected Networks

    b. Interfaces for GPRS Architecture

    c. Internet Protocol Addressing in Mobile Networks

    d. Gateway GPRS Support Node (GGSN) and Backbone Network

    e. Serving GPRS Support Node (SGSN)

    f. Packet Control Unit (PCU)

    g. GPRS Signaling Planes

    h. GPRS Control Planes

    i. GPRS Logical Channels

    j. GPRS Protocol Architecture and Interfaces

    k. Encryption Links: CS versus PS Network Connections

    l. GPRS Access Point Name and Processes Defined

    m. GPRS Tunneling Protocol (GTP)

    n. Session Management PDP Context Activation Process

    o. Radio Resource Management (RRM): Physical Layer

    p. GPRS Mobility Management (GMM) States

    q. GPRS Mobile Station Classifications

    r. Channel Coding in GPRS

    s. EDGE Modulation and Coding Scheme

    5. 3rd Generation Universal Mobile Telecommunications System (UMTS)

    a. Overview of UMTS Release 99 Features

    b. UMTS CS & PS Network Architecture: Supports Multi-Radio Access (Multi-RAT) Technologies

    i. GSM Access (BSS) – Core (NSS) Network Protocol Stacks

    ii. 3GPP Rel-99 UMTS Network Architecture

    c. UMTS Protocol Stack

    i. UMTS Iu – Interface Protocol Stacks

    ii. 3GPP Rel-4 Network Architecture: UMTS All-IP Core Network (CN)

    d. Support for UMTS Cell Hierarchy

    e. Characteristics of the UTRAN Architecture

    i. User Plane vs. Transport Plane

    ii. GPRS Packet Data Protocol (PDP) Context Illustrated

    iii. Packet Data Protocol (PDP) Context Activation

    iv. UMTS/WCDMA Logical, Transport and Physical Channel Mapping

    v. Registration Area Definitions for Paging and Mobility Management

    vi. Radio Resource Control (RRC): Modes and States

    f. UMTS Terrestrial Radio Access (UTRA):

    i. Frequency Division Duplex (FDD) Mode

    ii. Division Duplex (TDD) Mode

    g. Cell Breathing in CDMA Networks

    h. Adjacent- vs. Co-Channel Interference

    i. Power Control Used for CDMA RANs

    ii. Two Methods of Inner Loop Power Control (Open & Closed)

    i. Frame Structure Example for FDD: Downlink Dedicated Physical Channel (DPCH)

    j. UTRA – TDD Mode Asymmetric Handling of Traffic

    k. Spreading and De-spreading for WCDMA Illustrated

    i. Spreading Codes

    ii. Scrambling Codes for the Downlink and Uplink

    iii. Channelization Codes for the Downlink and Uplink

    iv. Combining Channelization and Scrambling Codes

    v. Rake Receiver

    vi. Spreading and Scrambling

    vii. Codes in WCDMA

    l. Mobile Communications Handover Types Compared

    m. New Developments for UMTS: 3.5G to 3.75G

    i. Adding Support for High Speed Packet Access (HSPA)

    ii. High Speed Downlink Packet Access (HSDPA)

    iii. Enhanced UpLink (EUL)

  • FAQs
    Is there a discount available for current students?

    UMBC students and alumni, as well as students who have previously taken a public training course with UMBC Training Centers are eligible for a 10% discount, capped at $250. Please provide a copy of your UMBC student ID or an unofficial transcript or the name of the UMBC Training Centers course you have completed. Online courses are excluded from this offer.

    What is the cancellation and refund policy?

    Student will receive a refund of paid registration fees only if UMBC Training Centers receives a notice of cancellation at least 10 business days prior to the class start date for classes or the exam date for exams.

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