Cdma RF System Engineering

A presentation of the complete design background of a CDMA handset, including hardware and software, digital, analogue and RF.

This book is based on my doctoral thesis at the Helsinki University of Technology. Several different projects during five years guided me from the basics of the RF IC design to the implementations of highly integrated radio receiver chips. Sharing time and effort between IC and system issues is not always straightforward. I have been lucky to follow both topics and share experiences with diligent and enthusiastic people having different specialities. As a result, this book will cover a wide range of different topics needed in the design of highly integrated radio receivers. Experiences from the first receiver prototypes for the third generation cellular systems form the basis of this book. Most of the issues are directly related to the early proposals of European and Japanese standardization organizations. For example, the chip rate was originally set to 4. 096 Mcps in a wide-band CDMA channel. I have kept that number in the book in most of the examples although it has been later changed to 3. 84 Mcps. I hope that the readers will accept that and the possible other incompabilities to the latest specifications. At least in the research phase the changes even in the most essential requirements are definitely not a rare incident and IC designers should be able to react and modify their designs as soon as they can.

With Netmonitor you can get a good idea of the cellular and WiFi signal strength and find out which corners of your office or home are having the best reception.

With Netmonitor you can get a good idea of the cellular and WiFi signal strength and find out which corners of your office or home are having the best reception.
Adjust the direction of the antenna to have better signal reception and to improve internet speed.
Netmonitor displays advanced 2G / 3G / 4G / 5G (NSA and SA) cellular network information and helps you to watch the state of cellular network by gathering data about cell towers. Also detects aggregated carriers (so-called LTE-Advanced).
Tool for voice and data service quality troubleshooting, RF (Telecom) optimization and engineering field work.
In most cases precision of estimated cell tower position is better for sites with 3 cells detected (sectors). If you see only one cell, this is not cell tower position, this is cell serving area center.

Learn DSP concepts- Sampling, Filtering, Interpolation, Fourier Theory, Digital Formats, Image, Audio, Video Compression