- course id
- 3G3D
- duration
- 3 day(s)
- Aimed At
-
This course is aimed at technical professionals who are familiar with 2G wireless technologies such as GSM or CDMA and wish to study the 3G technologies, WCDMA and CDMA2000.
- Prerequisites
-
Familiarity with 2G technologies such as GSM and/or CDMA.
- Course in a Nutshell
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This intensive three-day tutorial will help those familiar with 2G wireless 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 link budget and system capacity examples.
- Customize It!
-
We can tailor this course to suit the needs of audiences such as hardware designers, 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 in-depth treatment of 3G technologies should consider the 5-day version of this course listed under Related Courses above.
- Learn How To
-
- 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
- Stochastic theory review
- Digital modulation theory
- BPSK, QPSK, OQPSK, MSK, GMSK, 16QAM, 64QAM, etc.,
- Pulse shaping filter selection
- Nonlinear amplification (spectral regrowth)
- Spread spectrum : Frequency Hopping, Direct Sequence CDMA, RAKE Receiver, IS-95 CDMA uplink and downlink example, receiver block diagram
Radio Propagation Characterization- AWGN channel
- Rayleigh/Rician multipath fading
- 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, Walfish-Bertoni, etc.)
- Micro/macro cell measurements
- Comparison of worldwide measurements.
- Man-made interference
- Simulating multipath fading channels : Jakes, LPF-ing, etc.
Performance Improvement Techniques- Forward Error Correction (FEC): Block, Convolutional, Turbo
- Interleaver/de-interleaver - advantages and disadvantages
- Antenna receiver diversity techniques : Switching, Equal Gain, Maximal Ratio, Optimal Combining
CDMA2000 System Components (Building Blocks)- System goals (latency, throughput, etc.)
- CDMA200 Release A, B and C overview
- 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
- 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
- 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 to packet based systems
3GPP WCDMA System Components (Building Blocks)- System goals (latency, throughput, etc.)
- 3GPP Release Overview (Release 99 to Release 8 features)
- WCDMA physical channels
- WCDMA logical channels
- WCDMA protocol overview (Layer1-PHY, Layer2-MAC, Layer3-RLC functions)
- HSDPA overview
- HSDPA physical channels
- HSUPA overview
- HSUPA physical channels
- PN sequences discussion: m sequences, Gold codes, OVSF
- Spreader and despreader
- RAKE receiver
3GPP WCDMA System Scenarios- Echo profile manager (searcher)
- PN time tracking and acquisition
- SIR power control
- 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
- Paging discussion
- Channel assignment
- HSDPA performance results
- Available data rates
- Multicode transmission
- Receiver implications
- Performance
- Network architecture (NodeB, RNC, CN)
- Access Stratum (AS) & Non-Access Stratum (NAS)
- Migration to packet based systems
Link Budget and System Capacity Examples- Link budget equations
- Example for indoors and outdoors (Excel spreadsheet)
- Cell capacity example
- Frequency bands
Course Wrap-up: Recap and Discussion
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