Course
RF200 - CDMA Performance Optimization Principles, Tools And Practice
Scope
This four-day course builds
competence in the principles and present-day practices used to improve the operating
performance of CDMA systems. Core CDMA performance indicators are thoroughly
explored and desirable healthy CDMA operating conditions are identified. Both
system-side and mobile-side performance-monitoring tools are introduced. The main CDMA operating parameters are
identified along with the considerations necessary to properly set them in real
systems.
“Signatures” of specific problems
(including several deadly but innocent-appearing failure mechanisms) are
identified, along with their common solutions. Real-life captured drive-test
examples are studied and solved by the class. Special attention is given to
multiple-carrier and intersystem handoff issues, system determination
algorithms commonly used by mobiles, and data communication, and a glimpse of
future issues.
At conclusion, participants will be able to evaluate their
own systems’ performance, armed with the knowledge and confidence necessary to
identify and solve most common problems.
Applicability
CDMA systems at both 800 and 1900
MHz. frequencies
Topics
Introductory review of CDMA Call Processing Principles
Meet the Key CDMA Performance Indicators
¨
FER, Mobile Receive Power, Ec/Io, Mobile Transmit Power,
TXGA
¨
Ranges, normal values, what they mean, and what to do about
it
CDMA Performance “Signatures”
¨
For a good call
¨
For a lost call in bad coverage
¨
During forward link interference
¨
During reverse link interference
A CDMA “Death Scenario”
Survey of Performance-monitoring tools available from the System
¨
What’s available, what does it mean? Identifying the key
indicators to watch
¨
Tracking and Benchmarking for problem detection and growth
management
Survey of Performance-monitoring tool available from the
mobile side
¨
Maintenance Mode features of handsets – a useful tool that’s
always with you!
¨
Commercially-available handset-based CDMA drive-test data
collection tools
¨
Commercial PN scanners and their special capabilities: powerful allies
¨
Post-Processing tools:
how to find the important facts buried in all that data
Real-Life Drive-Text Example Cases to be solved in class
¨
A normal call
¨
Dropped Call, Poor Coverage
¨
Dropped Call, Forward Link Interference
¨
Dropped Call, Reverse Link Interference
¨
Capacity and Loading dynamic example
¨
Specific neighbor list, search window, and resource
congestion cases
Real-World Optimization Issues and Solutions
¨
Managing excessive soft handoff: root causes and solutions
¨
Achieving higher cell capacity: tips, tricks, and real expectations
¨
Managing search windows and neighbor lists for speed
Special topics
¨
Multi-carrier Operation and Optimization: principles and
tips
¨
Intercarrier and Intersystem Handoff mechanisms and
troubleshooting
¨
Data transmission on today’s CDMA systems: early
optimization considerations
¨
“Sneak” preview of what IS-95B will do
¨
Looking toward the future:
3G systems and their operating implications
Target Audience
Engineers and Technicians responsible for designing, maintaining, monitoring, and/or optimizing performance of CDMA systems
Prerequisites
Course RF100 or equivalent
background asic technical mathematics; one to two years exposure to
communications systems or general electronics.
Course Documentation and Materials
Student guide
Miscellaneous supplies
Facilities and Hardware Requirements
Classroom suitable for student note-taking and a screen or
other projection surface
Return to CDMA Courses and Contents
Scott Baxter
& Associates
PO Box 158777
Nashville,
Tennessee 37215
USA
Phone (800)
890-0829
Fax (866)
244-4105