Mobile Broadband Wireless Access

Course 195

Summary:

This three-day course provides a review of the system architectures, principles involved, and techniques applied, in mobile WiMAX, EV-DO, and HSDPA/HSUPA mobile broadband access (MBWA) systems. The typical types of packet switched data conveyed by such systems are 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 of the relevant standards are presented. Finally, the key parameters and performance of the three systems are compared.

Learning Objectives:

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

Understand the relationship between the WiMAX Forum and the IEEE’s 802.16-2005 mobile standard.
Understand the relationships between ETSI’s UMTS 3GPP group and HSDPA/HSUPA.
Understand the relationship between CDMA2000’s 3GPP2 group and EV-DO.
Describe the structure of various forms of packet switched data signals conveyed by MBWA systems such as IP, VoIP and Ethernet.
Be familiar with the operation, spectral density, and bit error rate (BER) performance of digital modems employing BPSK, QPSK, 8PSK, 16QAM and 64 QAM.
Understand Direct Sequence Spread Spectrum (DSSS) techniques.
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 MBWA systems.
Be familiar with the various techniques required for PMP communications, such as the Time Division Multiplexing (TDM), Time Division Multiple Access (TDMA), Code Division Multiplexing (CDM), Code Division Multiple Access (CDMA), Frequency Division Duplexing (FDD) and Time Division Duplexing (TDD), and non-line-of-sight (NLOS) methods including Orthogonal Frequency Division Multiplexing (OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Scalable OFDMA (S-OFDMA), Adaptive Antenna Systems (AAS), and Antenna Diversity Systems including Space Time Coding (STC) and Multiple Input/Multiple Output (MIMO) ones.
Be aware of the key features, specifications and performance parameters of mobile WiMAX, HSDPA/HSUPA, and EV-DO

Target Audience:

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

Outline:

Day One

Introduction
• Mobile Broadband Wireless Access: a high level view • IEEE’s 802.16-2005 mobile BWA system (Mobile WiMAX) • ETSI’s 3GPP HSPDA/HSUPA MBWA system • CDMA2000’s 3GPP2 EV-DO MBWA system • Coverage Methods : Point to Multipoint (PMP), Cellular Structure
Wireless Payload: Packet Switched Data
• TCP/IP, Mobile IP, VoIP, Ethernet
Helpful Mathematical Tools
Enabling Technologies I
• Digital Modulation: The Basic Principles • BPSK, QPSK, 8PSK, 16QAM and 64QAM modulation systems • Direct Sequence Spread Spectrum (DSSS) • Linear Modem Realization Techniques : Scrambling/descrambling, Carrier recovery, Timing recovery, and Differential encoding/decoding. • Transmission Frequency Components
The Mobile NLOS Wireless Path
• Antennas • Free Space Propagation • Received Signal Level • Large-scale path loss : Mean Path Loss, shadowing • Small-scale path fading due to: Time delay spread, Doppler spread
Enabling Technologies II
• Automatic Request for Repeat (ARQ) • Forward Error Detection/Correction : Block codes: BCH, RS, Parity Check, Hamming, Cyclic Redundancy Check (CRC), Repetition, Code Interleaving, Concatenated Codes, Convolution Codes

Day Two

Enabling Technologies II (cont'd)
• Forward Error Detection/Correction (cont'd) : Code Interleaving, Concatenated Codes, Turbo Codes, Low Density Parity Check (LDPC) Codes, Hybrid ARQ (HARQ) • Time Division multiplexing (TDM) and Time Division Multiple Access (TDMA) in PMP systems • Code Division Multiplexing (CDM) and Code Division Multiple Access (CDMA) in PMP systems • Transmission Signal Duplexing: FDD, H-FDD, TDD • Medium Access Control (MAC) • Scheduling • Dynamic Bandwidth Allocation (DBA) • 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), Scalable OFDMA (S-OFDMA), Receive Diversity, Transmit Delay Diversity, Transmit Space Time Coding (STC) Diversity, Multiple Input/Multiple Output (MIMO) scheme, Frequency Hopping Code Diversity (FHCD), Adaptive Antenna Systems (AAS), Transmitter Power Control (TPC)
Throughput/data rate definitions
Key features and parameters of WiMAX supported IEEE 802.16-2005 Mobile S-OFDMA Air Interface standard
• Network Architecture • Protocol Architecture • MAC features • Physical features • System Profiles • Targeted Frequency Bands

Day Three

Key features and parameters of ETSI’s HSDPA/HSUPA standards
• Network Architecture • Protocol Architecture • Physical features • Mac features • Targeted Frequency Bands
Key features and parameters of CDMA 2000’s EV-DO standard
• Network Architecture • Protocol Architecture • Physical features • Mac features • Targeted Frequency Bands
Mobile WiMAX, HSDPA/HSUPA, and EV-DO features and performance comparison

Subject Areas Covered

MIMO Technology
OFDM and OFDMA Technology
Broadband Wireless Networks (WiMAX)
CDMA/WCDMA 3G/4G LTE

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