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Course Name:   RF Optimization Training
     
Deployment Options:   Onsite - Instructor-Led Training
     
Course Duration:   4-5 days depending on audience background and options
 
Introduction:
 
This course is a four day intensive training and workshop designed to teach the fundamentals of RF optimization, data collection, root cause analysis, system trade off considerations in order to maintain and improve subscriber quality of service for both GSM based and CDMA based modulation technologies.
 
Audience:
 
Engineers new to the field of RF engineering, managers, or other personnel responsible for RF systems whether wireless, cellular/mobile, microwave, or other, will benefit from a comprehensive understanding of RF optimization, spectrum utilization, spectrum planning and capacity and quality of service management for RF systems. An electrical engineering degree or equivalent background is desired, but not required.
 
Prerequisites:
 
You should have some familiarity with communications engineering. If you have an understanding of the architecture of a mobile communications network and the limitations imposed by its air interface, that will be helpful but it’s not required.
 
Customize it:
 
This 4-5-day RF Optimization course will be customized to your needs and specifications. Eno.com will assist you in identifying those needs and specifications. A word to the wise, there are many vendors of wireless training. They will typically have a broad and general course, one size fits all, already developed and just put your organization’s name on the title slide. This minimizes their effort and time investment. At Eno.com, every course is made to your exact and exacting specifications. We help you ensure what you are getting is what you really eed even if at the beginning you weren’t too sure of what that was. We fit the class to your needs. We never fit you into our “standard”, one size fits all, class.
 
Objectives:
 
Provide an understanding of RF performance degradation issues, testing and measurement techniques, data collection methodologies, post processing methodologies and tools, drive testing, model tuning, spectrum planning, hand off considerations, morphology analysis, cell splitting, antenna tilt azimuth, noise, SNR, BER, SIR, frequency planning, interference, in order to allow engineers and technical personnel to manage and maintain system performance of RF related systems.
 
Course Outline
 

RF Optimization

RF Overview

  • Performance characteristics
  • RF engineering principles
  • Testing & measurement
  • Drive testing
  • Performance counters and key performance indicators (KPIs)
  • Data collection and post processing of data
  • Root Cause Analysis (RCA)
  • Spectrum utilization
  • Dropped calls
  • Poor coverage
  • Hard hand over failures
  • Soft hand over failures
  • Overview of optimization process for FFR modulation technologies
  • Overview of optimization process for CDMA modulation technologies

2. RF Operating Environment

  • Propagation models
  • Link budget analysis
  • Path loss
  • Reflection
  • Okamura/HATA
  • Noise & interference
  • Polarization distortion
  • Diversity
  • Raleyigh effect
  • Detection of co-channel interference
  • Coverage maps
  • Site acquisition process in RF engineering
  • Cell splitting process

3. Antennas

a. Antenna properties, elements and performance characteristics

  • Impedance
  • Radiation
  • Polarization
  • Gain
  • Diversity
  • Antenna noise temperature
  • Dipole definition
  • Bandwidth
  • Radiation patterns
  • Antenna materials
  • Isotropic radiation theory
  • Effect of ground
  • Mutual impedance
  • Angle of incidence
  • Refractive index
  • Azimuth & downtilt

b. Antenna types

  • Yagi
  • Slot
  • Omnidirectoinal
  • Dipoles & monopoles
  • Microstrip
  • Periodic/Resonant
  • Reflector
  • Loop, Slot, Spiral, Horn
  • Microstrip patch or, patch antenna
  • Half wave dipole
  • Folded dipole
  • Crossed dipole
  • Quadrifilar Helix

c. Antenna Arrays

  • What is an array
  • How can arrays help in capacity and performance?
  • What are the trade offs of using antenna arrays?
  • Antenna array types
  • ---Log periodic dipole array
  • ---Phased array
  • ---Coliner
  • ---Yagi-Uda
  • ---Broadside

d. Smart Antennas

  • Operation
  • Basic components of
  • What are the trade offs of using smart antennas?
  • Beamforming
  • MIMO
  • Direction of arrival (DOA)
  • Switched beam
  • Adaptive array

4. FFR modulation technologies

  • Frequency planning
  • Interference matrices
  • Neighbor planning
  • GSM logical channels (BCCH, FCH, SCH, SACCH, TCH, RACH)
  • Cell Tiering
  • Frequency hopping
  • Congestion
  • RF parameter datafills
  • Picocells
  • Femtocells
  • Cell on wheels (COW)
  • In building coverage
  • Towertop Mounted Amplifiers (TMA)
  • GPRS/EGRS Overview & interfaces
  • GPRS attach process
  • PDP context activation process
  • Throughput measurements
  • Impact of retransmissions on throughput
  • LAC/RAC boundaries

5. CDMA modulation technologies

  • PN planning
  • Soft hand over border planning
  • FER
  • Mobile assisted power control
  • Ec/Io
  • SIR
  • Self generated system interference
  • System parameter optimization
  • Neighbor analysis and search window
  • ERP changes
  • Multicarrier optimization
  • Multiband optimization
  • Reverse link interference
  • Orientation changes
  • 1xRTT/1xEV-DO overview and interfaces
  • Measurement of data throughput
  • Towertop Mounted Amplifiers (TMA)
  • Picocells
  • Femtocells
  • In building coverage
  • RF parameter datafills

6. RF Optimization Process

a. Setting the optimization criteria
b. Optimization in CDMA networks (incl W-CDMA)

  • Sources of information
  • Parameter investigation
  • Analysis of the existing RF plan
  • Performance of cell site audit
  • Multi carrier and multi mode optimization
  • Post processing and analysis of data
  • Corrective actions

c. Optimization in fractional frequency reuse networks

  • Sources of information
  • Interference matrices
  • Frequency reuse plan
  • Parameter investigation
  • Analysis of the existing RF plan
  • Cell tiering
  • Performance of cell site audit
  • Post processing and analysis of data
  • Corrective actions

d. Correlation of customer complaints to possible root cause (RCA)

  • Capacity and loading examples
  • Dropped call, poor coverage
  • Dropped call, system resources
  • Dropped call, other

e. Mobile drive testing and data collection

  • Tools available
  • Post processing, what does it mean
  • Root cause analysis
  • Tracking and benchmarking
  • PN scanners and their capabilities

7. Workshop GSM/GPRS

  • Performance analysis
  • Optimization process
  • BCCH parameter optimization
  • Cell selection & reselection
  • Interference analysis
  • GPRS Attach
  • Routing area updates
  • Measuring throughput
  • Root cause analysis (RCA)
  • Final recommendations

8. Workshop CDMA2000 and 1xEV-DO

  • a. Performance anlaysis
  • b. Dropped calls
  • ---Poor coverage
  • ---Forward/Reverse link interference
  • Specific neighbor list, search window and congestion
  • Managing excessive soft handoff
  • Multicarrier optimization
  • Intercarrier and intersystem troubleshooting
  • 1xRTT and 1xEV-DO throughput measurement
  • Overview of 1xRTT and 1xEV-DO
  • ---Optimization principles of 1xRTT data and 1xEV-DO


Please call or e-mail to schedule a no-obligation conference call to help us understand your audience background and training objectives.

 
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