The PL2303 USB to Serial adapter is your smart and convenient accessory forconnecting RS-232 serial devices to your USB-equipped Windows host computer. Itprovides a bridge connection with a standard DB 9-pin male serial port connector inone end and a standard Type-A USB plug connector on the other end. You simplyattach the serial device onto the serial port of the cable and plug the USB connectorinto your PC USB port. It allows a simple and easy way of adding serial connectionsto your PC without having to go thru inserting a serial card and traditional portconfiguration.This USB to Serial adapter is ideal for connecting modems, Cellular phones, PDAs,digital cameras, card readers and other serial devices to your computer. It providesserial connections up to 1Mbps of data transfer rate. And since USB does not requireany IRQ resource, more devices can be attached to the system without the previoushassles of device and resource conflicts.Finally, the PL-2303 USB to Serial adapter is a fully USB Specification compliantdevice and therefore supports advanced power management such as suspend andresume operations as well as remote wakeup. The PL-2303 USB Serial cable adapteris designed to work on all Windows operating systems.
Abstract: This application note discusses the development and deployment of 3G Cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
Abstract: This application note discusses the development and deployment of 3G Cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
Digital cameras have become increasingly popular over the last few years. Digital imagingtechnology has grown to new markets including Cellular phones and PDA devices. With thediverse marketplace, a variety of imaging technology must be available. Imaging technologyhas expanded to include both charge-coupled device (CCD) and CMOS image sensors.
This program shows the distributions of the co-channel interference in forward and reverse link in the Cellular mobile system with cluster size N, when the mobile subscriber (MS) is at random positions of a cell.
The result is an IS-95CDMA forward link software simulation package ,which mimics real-time data communication from a basestation to a Cellular unit. The package simulates an
IS-95CDMA forward link Cellular system consisting of 3 major components:Transmitter,
Communication Channel and Receiver.
S60-programming-a-tutorial-guide-symbian.
1 Introduction to Mobile-Phone Systems 1
1.1 Wireless Technologies 1
1.2 Cellular Systems 2
1.3 Elements of a Mobile-Phone System 4
1.4 Keeping Users’ Calls Separate 5
1.5 Multipath Propagation 7
1.6 2G Mobile-Phone Systems 9
1.7 GPRS Systems 10
1.8 3G Mobile-Phone Systems 13
1.9 IP Multimedia Subsystem 16
1.10 Mobile-Phone Hardware 17
2 Introduction to Symbian OS 19
Introduction 19
2.1 The Development of Symbian OS 20
2.2 Symbian OS User Interfaces 21
2.3 Coding Idioms 23
2.4 Tool Chains 28
3 The Console Application 33
Introduction 33
3.1 Creating a Console Application 33
3.2 CBase Classes 38
3.3 Protecting Memory 38
3.4 Putting It Into Practice: An Engine for a Simple
Card Game 46
Summary 56
After an introduction to the history of mobile communications, this guide considers the basics of mobile radio, the design of Cellular and private radio systems, and issues of interworking with the fixed network. It then looks at the role of the mobile radio operator, the design and operation of mobile radio networks, the needs of large user groups, and relevant regulatory and government decisions. A final section focuses on career development through resolution of conflicts, understanding managerial issues, and professional vehicles.
