Course 134 - Current CDMA Networks: Architecture,
Algorithms, And Performance
Scope
This
two-day seminar presents a non-proprietary basic and technical information
survey of CDMA network and subscriber equipment in current commercial use. It focuses on needs of currently operating
systems and examines major issues with present system performance. Basic architectures and performance of both
networks and subscriber equipment are discussed.
Target Audience
Designers
of network system equipment, subscriber equipment, and CDMA test equipment, as
well as system design engineers, operating engineers and technicians,
consultants, and allied professionals.
Course Presentation Setting and Methods
Presented
in a classroom setting using computer projection with student workbooks.
Topical Outline
Introduction
¨
CDMA
Deployment Status Overview
¨
Who’s
doing what, where?
¨
CDMA
penetration status
¨
CDMA
Principles Review
¨
Channel
Definitions & Structure
¨
Power
Control, Messaging basics
CDMA Basic Network Architecture (Generic)
¨
Basic
structure
¨
Metamorphosis
from DS-0 to chip stream
¨
Survey
of manufacturers’ advertised network system architectures
¨
Switching
Functions
¨
BSC
Functions
¨
Vocoding
¨
Packet
Operations
¨
Frequency
and Time functions
¨
Call
Processing functions
¨
BTS
Functions
¨
Packet
Operations
¨
Frequency
and Time functions
¨
Forward
and Reverse Link generation functions
¨
Receive
features: rake receiver, antenna diversity
¨
Reverse
link power control implementation
¨
Forward
features
¨
Forward
link power control implementation
¨
Access
screening thresholds, excess forward link capacity
CDMA Basic Subscriber Unit Architecture (Generic)
¨
Basic
structure
¨
Vocoder
operation
¨
Transmitter operation
¨
Power
control implementation
¨
Receiver
operation
¨
Initialization
& system selection capabilities
¨
Pilot
searcher operation
¨
Rake
finger operation
¨
Handoff
protocol & messaging
Handoff Algorithm Variations among Network Manufacturers
¨
Soft
handoff performance implications
¨
Dropped-call
performance implications
¨
Live examples
from captured air-interface data
Hard Handoff Strategies
¨
Beacons
¨
Co-located
bridge cells
¨
Alternative
trigger mechanisms
Capacity Issues
¨
Multi-carrier
operation and capacity implications
Current CDMA Performance Issues
¨
Typical
performance examples of operating networks
¨
Generic
operating issues involving RF system design
¨
Generic
issues driving standards modification
¨
Origination
in soft handoff
¨
Wideband
CDMA
¨
Capacity
rationale and current developments
Prerequisites
Course 132 or
equivalent knowledge through experience or other training
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