LTE Mobile Access

Course 213

Summary:

This two-day course provides a review of the system architectures, principles involved, techniques applied, and performance achieved in UMTS’s Long Term Evolution (LTE) mobile broadband access (MBWA) system. The typical types of packet switched data conveyed by this system is studied. Key enabling technologies are presented including: relevant digital modulation techniques, error detection/correction methods, and multiple access and NLOS techniques employed in Point-to Multipoint (PMP) systems. The non-line-of-sight (NLOS) mobile wireless fading path is reviewed. Key physical layer and MAC features are presented. The key parameters of LTE’s UMTS predecessor, HSPA and LTE are compared. Finally, the status of LTE is summarized and its key parameters compared to Mobile WiMAX .

Learning Objectives:

Upon completing the course, the participant will be able to:

Understand the relationships between the ITU’s IMT-2000, ETSI, UMTS 3GPP group, and HSPA/LTE.
Describe the structure of various forms of packet switched data signals conveyed by MBWA systems such as IP, VoIP and Mobile IP.
Be familiar with the operation, spectral density, and bit error rate (BER) performance of digital modems employing BPSK, QPSK, 16QAM and 64QAM.
Understand the various path loss and fading phenomena possible over a mobile NLOS wireless channel.
Understand the basics of Block, Convolution, and Turbo codes and how these codes are applied to improve the BER performance of LTE systems.
Be familiar with the various techniques required for LTE PMP communications, such as signal duplexing methods, and non-line-of-sight (NLOS) methods including Orthogonal Frequency Division Multiplexing (OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier-Frequency Division Multiple Access (SC-FDMA), Adaptive Antenna Systems (AAS), Antenna Diversity Systems including Delay Diversity (DD), Cyclic Delay Diversity (CDD), Space Time Block Coding (STBC) and Space Frequency Block Coding (SFBC), and Multiple Input/Multiple Output (MIMO) systems.
Develop a firm understanding of the system architecture, key features, specifications and performance parameters of LTE.

Target Audience:

Hardware, software and system engineers, engineering managers, and product marketing managers involved in the planning, development, marketing and implementation of LTE mobile broadband wireless access systems. Some familiarity on the part of participants with basic trigonometry and general electronics will be helpful.

Outline:

Day One

Introduction
• UMTS Evolution: From WCDMA to LTE • Cellular Coverage: Cellular Structure, Spectral efficiency definitions
Wireless Payload: Packet Switched Data
• TCP/IP, VoIP, and Mobile IP
Helpful Mathematical Tools
• Spectral Analysis • Thermal Noise
Enabling Technologies I
• Digital Modulation: The Basic Principles • BPSK, QPSK, 16QAM and 64QAM modulation systems • Linear Modem Realization Techniques : Scrambling/Descrambling, Carrier recovery, Timing recovery.
The Mobile NLOS Wireless Path
• Antennas • Free Space Propagation • Received Input Power and Fade Margin • Mean Path Loss • Fading due to: Time delay spread, Doppler spread
Enabling Technologies II
• Cyclic Redundancy Check (CRC) • Automatic Request for Repeat (ARQ) • Repitition codes • Convolution Codes • Code Interleaving : Turbo Codes, Hybrid-ARQ (H-ARQ) • Transmission Signal Duplexing: FDD, H-FDD, TDD • Medium Access Control (MAC) • Scheduling • Dynamic Bandwidth Allocation (DBA) • Adaptive Modulation and Coding (AMC) • Non Line-of-Sight (NLOS) Techniques: : Orthogonal Frequency Division Multiplexing (OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier-Frequency Division Multiple Access (SC-FDMA)

Day Two

NLOS Techniques (cont’d) : Receive Diversity, Transmit Delay Diversity (DD), Transmit Cyclic Delay Diversity (CDD), Transmit Space Block Time Coding (STBC) Diversity, Transmit Space Frequency Block Coding (SFBC), Multiple Input/Multiple Output (MIMO) scheme, Adaptive Antenna Systems (AAS), Transmitter Power Control (TPC)
Key features and parameters of UMTS LTE Standard:
• LTE Radio Access Overview • System Architecture • E-UTRAN Protocol Architecture • Frame Structure • Downlink Structure and features: : DL Logical, Transport and Physical Channels, DL Control Data and Physical Signals, DL Physical Resource and mapping to that resource, DL Maximum Data Rate, DL Multiple Antenna Transmission Schemes • Uplink Structure and Features: : UL Logical, Transport and Physical Channels, UL Control Data and Physical Signals, UL Physical Resource and Mapping to that Resource, UL Maximum Data Rate, UL Multiple Transmission Scheme • H-ARQ Operation • Radio Link Control (RLC) Protocol Operation • Scheduling • Inter-cell Interference Coordination • Access Procedures • Mobility • QoS of EPS Bearers • UE Categories and Peak Data Rates • Designated Frequency Bands • Key Base Station/Mobile Station Specifications • Comparison of LTE and HSPA
LTE Conclusion, including LTE/Mobile WiMAX Comparison

Subject Areas Covered

Broadband Wireless Networks (LTE/WiMAX)
CDMA/WCDMA 3G/4G LTE

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