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Computer and Network Administration

Cellular/Mobile Wireless 2

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This is the second of three courses in a series on mobile wireless cellular communications. This course (Part II) begins with an analysis of Radio Access Networks (RANs). This is followed by the topic of modulation schemes, essential to understanding how radio links provide greater efficiency for the RF spectrum used by mobile operators.

The course continues with an in-depth look at the radio link channels used in GSM. This is followed by the introduction of two packet-switched cellular data standards crafted by the European Telecommunications Standards Institute (ETSI). The first is General Packet Radio Service (GPRS), considered a 2.5G standard, which is the basis for providing mobility for cellular packet-switched data in 3G and 4G-LTE networks today. The second ETSI standard defined is referred to as Enhanced Data-rates for Global Evolution (EDGE), which focuses on techniques for GSMs air interface. These higher-order modulation techniques were developed to increase cellular data rates, using the same radio link infrastructure.

This course concludes with an in-depth look at the 3rd Generation Partnership Projects (3GPPs) third generation (3G) standard, Universal Mobile Telecommunications System (UMTS). This standard represents the vast majority of all 3G systems in operation worldwide, today.

In summary, this course allows attendees to continue to build on the mobile cellular communications foundations provided in the first course of this series. It shows how mobile cellular standards evolved through 3G and provides the necessary foundation to comprehend the next two generations of standards, 4G and 5G.

on 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


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
Course Outline
  1. Radio Access Networks (RANs) and Mobile Network Architectures
    1. 2G Global System for Mobile (GSM) Communications & 2.5G General Packet Radio Service (GPRS) Basic Architecture
    2. Mobility Management (MM) in GSM and GPRS Networks
    3. Mobile Cellular Handover (Handoff) Illustrated
    4. GSM Intra-Base Station Controller (BSC) Handover
    5. GPRS Mobility Management States (2.5G)
    6. 3G Universal Mobile Telecommunications System (UMTS) Basic Architecture
    7. Packet Mobility Management (PMM) States in UMTS (3G)
    8. GSM/GPRS & UMTS Interfaces Between Network Entities
    9. Macrocells: Avoiding Co-Channel Interference
    10. Disguised Macro Base Stations
    11. Relationship Between Base Stations (BSs) and Cells
    12. IS-95 CDMA: Spreading Codes for Efficient Transmission
    13. Frequency Reuse Factor = 1 for CDMA Networks
    14. 4G Long Term Evolution (LTE) Basic Architecture
    15. Six-Sector Cell Coverage for LTE RANs
  2. Modulation Schemes, RF Mobile Signal Propagation and Antenna Design
    1. Modulation Schemes
  1. Analog Modulation Schemes: Amplitude and Frequency
  2. Analog Modulation Schemes (Continued): Phase
  3. Carrier Waves used for Digital Transmissions
  4. Understanding Carrier Modulation: Bits, Bauds & Symbols
  5. Transporting Carrier Symbols
  6. Higher Order Modulation Techniques: Quadrature Phase Shift Keying (QPSK)
  7. Higher Order Modulation Techniques: Quadrature Amplitude Modulation (QAM

2. RF Mobile Signal Propagation

  1. RF Signal Propagation Impairments
  2. Multipath Fading in Cellular Radio Links
  3. Adjacent- vs. Co-Channel Interference

3. Antenna Design

  1. Antenna Polarization: Vertical and Horizontal
  2. Signal Gain: Active vs. Passive Components
  3. Using Active Array Antennas to Achieve Signal Gain
  4. Adding Antenna Sectors to Increase Network Capacity
  5. Signal Directivity
  6. Antenna Tilt
  7. How Antenna Downtilt Enhances Coverage

3. Advanced Topics in GSM

    1. Signaling Protocols Used in a GSM Network
    2. Signaling Protocols Used in a GSM Network: BSSAP
    3. Standalone Base Station: Conventional Cell Site Architecture
    4. GSM Logical Channels
    5. Control Channels (CCHs)
    6. Broadcast CHannels (BCHs): Downlink Only
    7. Common Control CHannels (CCCHs)
    8. Dedicated Control CHannels (DCCHs)
    9. GSM Traffic Channels (TCH)
    10. Mapping Logical Channels into the GSM Frame Structure
    11. Radio Access Technique for GSM: FDMA/TDMA
    12. GSM Air Interface: Time Slot Offset
    13. Different Types of GSM Time Slot Bursts

4. Intro to Cellular Data: GPRS & EDGE: General Packet Radio Service & Enhanced Data rates for GSM Evolution

    1. Introduction to Packet-Switched Data Service
    2. General Packet Radio Service (GPRS) Defined
    3. GPRS Architectural Diagram with Interconnected Networks
    4. Channel Coding and Forward Error Correction in GPRS
    5. EDGE Modulation and Coding Schemes
    6. GSM EDGE Radio Access Network (GERAN): Um Interface
    7. Serving GPRS Support Node (SGSN)
    8. Gateway GPRS Support Node (GGSN) and Backbone Network
    9. GPRS Protocol Stack: User (Transmission) Plane
    10. GPRS Logical Channels
    11. GPRS Access Point Name and Processes Defined
    12. GPRS Tunneling Protocol: User versus Control Planes
    13. Understanding Tunnel Endpoint Identifiers (TEIDs)
    14. Session Management PDP Context Activation Process
    15. PDP Context Procedures: Establishing a Packet Transfer Connection
    16. Packet Control Unit (PCU) Defined
    17. Radio Resource Management (RRM): Physical Layer
    18. GPRS Mobility Management (GMM) States
    19. GPRS Mobile Station Classifications
    20. GPRS Routing Area Update (RAU) Signaling

5. Intro to 3G: Universal Mobile Telecommunications System (UMTS)

    1. 3GPP Rel-99 UMTS Network Architecture
    2. UMTS User Plane vs. Control Plane
    3. Packet Data Protocol (PDP) Context Activation
    4. GPRS Packet Data Protocol (PDP) Context Illustrated
    5. 3GPP Rel-4 Network Architecture: UMTS All-IP Core Network (CN)
    6. Registration Area Definitions for Paging & Mobility Management
    7. UMTS Terrestrial Radio Access (UTRA) – Frequency Division Duplex (FDD) Mode
    8. UMTS Terrestrial Radio Access (UTRA) – Division Duplex (TDD) Mode
    9. Spreading Codes
    10. Scrambling Codes for the Downlink and Uplink
    11. Channelization Codes for the Downlink and Uplink
    12. Combining Channelization and Scrambling Codes
    13. 3G Mobile Architecture: CS & PS
    14. Cell Splitting: Adding Microcells to Avoid Congestion
    15. Introduction to Small Cells
    16. Later Developments for UMTS: 3.5G to 3.75G
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. Asynchronous 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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