Course 303 - Post-Processing With
Analyzer
Using
The Analyzer Post-Processing Tool In CDMA System Performance Optimization
Scope
This
one-day seminar introduces the Grayson Analyzer post-processing software and explains
the objectives, principles, and techniques for using Analyzer to assess CDMA
system performance.
Analyzer’s
installation and hardware requirements are discussed and installation is
completed if not already successful.
Using local
data collected earlier in Course 301, all pertinent features and analysis
capabilities of the software are demonstrated and explored. Example data may be
supplemented with previously-captured examples of classical system deficiencies
or anomalies where necessary to illustrate specific problems. After basic capabilities have been
demonstrated and understood, the prime emphasis shifts to effectively using the
power of Analyzer to find and study specific events and derive system statistics.
At
conclusion, students will be able to convert drive-test files into the format
required by Analyzer, extract system performance statistics from data files,
recognize symptoms of common problems, and identify appropriate corrective
actions to be taken.
This course
is network-hardware-generic, focusing on the RF air interface and specific
behavior of subscribers’ handsets operating under applicable standards. It
complements, but does not replace, network manufacturers’ specific “System
Optimization” courses which focus largely on hardware-specific and proprietary
details of internal network operation and may not include the detailed CDMA RF
perspective presented here.
Applicability
CDMA
systems of all frequency bands (800, 1900 MHz.) and all network equipment
manufacturers (Lucent, Nortel, Motorola, QualComm, Samsung)
Target Audience
Engineers
and technicians responsible for maintaining, monitoring, and optimizing CDMA
wireless systems
Course Presentation Setting and Methods
This course
includes classroom presentation of the introduction and review topics using
course materials and computer projection. The remainder of the course consists
of live analysis and demonstrations drawn from collected data files.
Topical Outline
Introduction and Analyzer overview
Analyzer
Installation: PC Requirements, Installation Procedures, File Management
Analyzer
Features and Operations
¨
Data
Conversion
¨
Data
Streams and the Browser
¨
Message
Files: CDMA Messaging Structure and Call Processing Events
Common CDMA Problems: Symptoms, Data Indications, Solutions
¨
Poor-Coverage
Issues: characteristic signatures in the data
¨
Forward
Link Interference
¨
Data
signatures, PN Planning issues, setting window sizes
¨
Slow
Handoff Issues
¨
Signatures
and causes
¨
Excessive
Soft Handoff
¨
Signatures,
causes, RF changes vs. parameter manipulation techniques
¨
Side-effects
of suppressing soft-handoff
¨
Access
Failures
¨
Signatures,
causes, mechanics of the probing protocol and parameters
¨
Dropped
Calls
¨
Identifying
causes from data signatures
¨
Using
Mobile Data to look for bad network hardware
¨
Benchmarking
and Tracking
¨
Spotting
software bugs and protocol violations, both system and handset
Prerequisites
¨
Basic
installation, features, and operation of the Grayson Electronics WMI/Surveyor. This knowledge comes from Course 301 or
from equivalent training or experience.
¨
Prior
familiarity with the CDMA air interface, including mechanics of handoff, CDMA
messaging, power control, and PN planning issues. This knowledge can come
from Course 302 or from equivalent training or experience.
Course Documentation and Materials
Course
Manual provided per student
Diskette
with example files and reference material per student; incidental supplies
Facilities and Hardware Requirements
Classroom:
¨
Comfortable
student seating
¨
Desktop
space for note-taking and laptop PC usage
¨
Projection
screen or 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