3G: WCDMA/UMTS & CDMA2000 in Depth

Eogogics Legacy Courses Still Available on Request
  • Course:3G: WCDMA/UMTS & CDMA2000 in Depth
  • Course ID:3G5D Duration:5 days Where: Your Office (7+ Persons)
  • Available as a private, customized course for your group at your offices or ours and in some cases as a WebLive(TM) class.

  • Download Course Description (PDF)

Course Outline

Digital Modulation Overview

  • Introduction to key wireless standards
    • IS-95,  GSM
  • Multiple access principles (TDMA, CDMA, FDMA, SDMA)
  • Complex envelope representation of signals and systems
    • Bridge relationship to actual hardware
    • Provide mathematical insight
    • Support computer simulation
  • Stochastic theory review
  • Digital modulation theory
    • BPSK, QPSK, OQPSK, MSK, GMSK, 16QAM, 64QAM, etc.
    • Pulse shaping filter selection (Nyquist and Raised Cosine filtering)
    • Nonlinear amplification (spectral regrowth)
    • Migration path and reasoning behind choices available
  • Spread spectrum: Frequency Hopping, Direct Sequence CDMA, RAKE receiver, IS-95 CDMA uplink and downlink example, receiver block diagram
  • System metrics:  BER, SNR, Eb/No definitions


Radio Propagation Characterization

  • AWGN channel
  • Rayleigh/Rician multipath fading
    • Mathematical background
    • Practical explanation
  • Delay spread concept (flat vs. frequency selective fading)
    • Indoor and outdoor propagation measurements
  • Delay spread and coherence bandwidth (outdoor and indoor)
  • Log normal shadowing
  • Path loss models (Free Space, Hata, Cost231, Walfish-Bertoni, etc.)
    • Micro/Macro cell measurements
    • Comparison of worldwide measurements.
  • Man-made interference
    • Co-Channel interference (CCI)
    • Adjacent Channel interference (ACI)
  • Correlation of frequency and time
  • Simulating multipath fading channels: Jakes, LPF-ing, etc.


Performance Improvement Techniques

  • Forward Error Correction (FEC)
    • Block (linear codes, encoder, syndrome decoding)
    • Convolutional (trellis  diagram, Viterbi algorithm, punctured coding)
    • Turbo (encoder and decoder)
  • Interleaver/de-interleaver – advantages and disadvantages
  • Antenna receiver diversity techniques: Switching, Equal Gain, Maximal Ratio, Optimal Combining
    • Theoretical SNR improvement
    • Expected BER performance
  • Antenna transmit diversity techniques:  Space Time Block Codes, Closed Loop Antenna Arrays, MIMO


CDMA2000 System Components (Building Blocks)

  • System goals (latency, throughput, etc.)
  • CDMA200 Release A, B and C overview
    • Mobile Station State Definition
  • CDMA 1xRTT physical channels (UL and DL)
  • Logical channels (UL and DL)
  • Protocol overview (Layer 1 – PHY, Layer 2- MAC, Layer 3- RLC functions)
  • 1xEV-DO Release A, B and C overview
  • 1xEV-DO physical channels
    • Access Terminal State Definition
  • 1xEV-DO logical channels
  • PN sequences discussion: m sequences, Gold codes, Walsh
  • Spreader and despreader (Complex and Quadrature)
  • RAKE receiver


CDMA2000 System Scenarios

  • Echo profile manager (searcher)
  • PN time tracking and acquisition
  • Paging discussion
  • Power control
    • Uplink and downlink
    • Comparison to IS-95
    • Multi-user scenarios
  • Pilot symbol aided coherent detection
  • Channel estimation
  • QPSK vs. BPSK pilot symbols
  • Variable processing gain
  • Cell search and handoffs
  • Channel assignment
  • Traffic channel and radio configurations
  • UL/DL performance
  • Available data rates
  • Multicode transmission
  • Receiver implications
  • Network architecture (BTS, BSC, CN)
  • Migration from circuit-switched to packet based systems
  • Comparison with WCDMA system scenarios


3GPP WCDMA System Components (Building Blocks)

  • System goals (latency, throughput, etc.)
  • 3GPP Release Overview (Release 99 to Release 8 features)
  • WCDMA physical channels
    • UE state definitions
  • WCDMA logical channels
  • WCDMA protocol overview (Layer1-PHY, Layer2-MAC, Layer3-RLC functions)
  • High-speed Downlink Packet Access (HSDPA) overview
  • HSDPA physical channels
  • High-speed Uplink Packet Access (HSUPA) overview
  • HSUPA physical channels
  • PN sequences discussion: m sequences, Gold codes, OVSF
  • Spreader and despreader
  • RAKE receiver: Overall block diagram discussion
  • RAKE receiver: Signal processing
    • Channel estimation (multi-slot averaging)
    • PN code time tracking (DLL, TDL)
    • AFC (two types)
    • AGC
    • DC offset
    • Modulation comparison
    • Searcher and finger management


3GPP WCDMA  System Scenarios

  • Echo profile manager (searcher)
  • PN time tracking and acquisition
  • SIR power control
    • Inner, Outer, and Closed Loop
    • UL and DL Closed Loop comparison
    • Performance improvement
    • Multi-user scenario
  • Pilot symbol aided coherent detection
  • Channel estimation
  • QPSK vs. BPSK pilot symbols
  • Rate matching
  • Variable processing gain
  • Modulation (HPSK) and filtering
  • Cell search and handoffs
    • Intra-frequency measurements
  • Paging discussion
    • Comparison of IS-95, CDMA2000 and WCDMA paging protocols
    • Power consumption conclusion
  • Channel assignment
  • Call flow diagrams
    • Mobile originated
    • Mobile terminated
  • HSDPA performance results
  • Available data rates
  • Multicode transmission
  • Receiver implications
  • Performance
  • Network architecture (NodeB, Radio Network Controller – RNC, Core Network -CN)
    • Partitioning of protocol stack across network
  • Access Stratum (AS) and Non-Access Stratum (NAS)
  • Migration from circuit-switched to packet based systems
    • What needs to change on the 3G systems to support this migration?
  • Comparison with CDMA2000 system scenarios
  • System architecture
    • Ciphering examples
    • Integrity protection
    • Confidentiality
    • WCDMA and HSDPA examples

Link Budget and System Capacity Examples

  • Link budget methodology
  • Link budget equations
  • Rise over Thermal calculations
  • Example for indoors and outdoors (Excel spreadsheets)
  • Cell capacity example
  • Targeted frequency bands


Course Wrap-up: Recap and Discussion

Course Overview

Course in a Nutshell

This fast-paced, five-day course will help those familiar with 2G technologies migrate to 3G systems. The course begins with a review of the digital modulation techniques, radio propagation characteristics, and performance improvement techniques. This is followed by a comprehensive discussion of the system building blocks and various system operating scenarios for both the CDMA2000 and WCDMA systems. The course concludes with a study of the link budget spreadsheets and system capacity examples.


Customize It!

We can tailor this course to suit the needs of audiences such as hardware engineers, software/application developers, service designers, sales engineers, marketing/sales personnel, radio planners, and persons involved in defense and homeland security endeavors. Those looking for a more compact overview of 3G technologies should consider the 3-day version of this course listed under Related Courses.

Audience / Prerequisites

Aimed At

This course is aimed at technical professionals who are familiar with 2G wireless systems such as GSM or CDMA and wish to undertake an in-depth study of the 3G systems, namely WCDMA and CDMA2000.



Familiarity with 2G technologies such as GSM and/or CDMA.


  • "Great course on theory and technologies. Instructor's knowledge of the subject matter was above and beyond; it's amazing! Participant guide very good. Great, in-depth course!" – US Department of Defense
  • "Liked the recursive nature of the presentation. We went layer by layer over similar areas, gaining complexity each time. The instructor understands not only the technical content but the art of instruction and can work in both spheres at the same time. I love his story-telling style; he has a metaphor for everything. This instructor can provide instruction at any depth needed. The participant book made good use of color, very readable - something I will reference to remember the class again and again." – VW, Project Manager, US Department of Energy
  • "A lot of good info, covering all of the CDMA technologies. Instructor very knowledgeable and excellent in relaying the information to the students in a way that was easy to absorb." – US Department of Defense