CDMA Basics - Course Overview
Technical Overviews
Course Overview
This course provides technicians with a fundamental understanding of CDMA technology and provides a hands- on classroom environment to learn about the block diagram of a mobile and how to measure and ind faults. This experience enhances the productivity of technicians in the production environment who do testing, rework, and support. By taking knowledge of the CDMA system together with measurement theory, the student will have the tools and knowledge necessary to be faster and more effective in working with mobile phones.
What You will Learn
– CDMA network, cells, and sectors
– Soft, softer and hard hand-offs
– Pilot and synch channels
– Trafic channels
– Vocoders and error correction
– Walsh and long code
– Camp and call set-up
– 8924C CDMA test set operation
– Transmitter measurement
– Receiver measurement
Specications
Course type
Application/Product Training
Audience
All personnel involved in CDMA development, planning, operation, implementation and maintenance.
Prerequisites
Students will have to have completed the RF Measurement Basics (H7216B opt.101) course or equivalent.
Course length
1 day
Course format
This course is divided into instructor-led lessons and handson labs. These reinforce the theory and its application to mobile fault inding.
Delivery method
Scheduled at Keysight Technologies, Inc. locations, or
Dedicated at a customer site.
To save you time and travel, many Keysight courses can be delivered at your site. Keysight can provide required equipment, or you can save money by furnishing your own.
Detailed Course Agenda
AMPS Basics
Digital Basics
What is the reason behind the move to digital systems? Understanding these issues enables us to introduce the fundamental shifts from directly modulated analog signals to digitally encoded data transmission.
CDMA Basics
This lesson looks at three areas of CDMA:
Network, Air Interface, and Signal Path.
The CDMA Network:
– Network components
– Cells and sectors
– PN offset
– Hand-off techniques
– Power changes
The Air Interface explores:
– CDMA implementation
– Walsh and long codes
– Frames and data formatting
– Paging and call formatting
The signal Path from the microphone
to the antenna is explained:
– Vocoder
– Channel coder
– Interleaving
– Modulation
– Transmission
CDMA Measurements
Making real measurements and applying all the theory learned in the previous lessons will enable students to quickly ind faults in the mobile. This will reduce the amount of time spent looking for problems and improve productivity. This is achieved by teaching the student about:
– Detailed mobile block diagrams
– Functional testing
– How to make measurements
– What is being measured
– What measurements tell us
– How to isolate problems