| Publisher | Tropian | ||
|---|---|---|---|
| Format | PDF, requires Acrobat Rdr 5 | Date added | 14 Aug 2003 |
| Topics | Cellular Equipment | ||
| Downloads | 6 | ||
Tropian’s use of fully nonlinear RF signal processing to implement a multi-mode mobile transmitter provides dramatic benefits over conventional solutions. These benefits include improvements in transmit spectral purity, greater manufacturability, and improved network performance. The elimination of power amplifier calibration during handset manufacturing final test, based on Tropian’s use of fully open loop power control together with high gain step accuracy, dramatically improves manufacturability. Finally the Tropian transmitter runs continuously at full power, without the need for heat sinking, over a full eight GSM time slots due to improved efficiency of the entire power amplifier. This solution services the most stringent of half-duplex and full-duplex GPRS transmit modes. The current drawn from the battery is also significantly reduced compared to conventional solutions; particularly at the medium and low transmit power levels utilized in urban and surburban digital cellular network deployments.
Did you find this white paper useful?
19 out of 35 users found this white paper useful
Related white papers
What Works: Grameen Telecom's Village Phones
Grameen Telecom's goal is to connect rural Bangladesh through the provision of mobile telephone service by creating micro-enterprises that can generate individual income and provide whole villages with connectivity. GT...
Developer Case Study: Wayfinder and How to Install a 500kB Application in Just 30kB
Wayfinder is an application development company located in Lund, in the south of Sweden. Wayfinder EuroGuide is a mobile city guide, direct in your mobile phone. You can get detailed...
GSM Network Extended in Remote Islands
Worldwide, telecommunications companies are facing the challenge of extending cellphone coverage into remote, low-revenue locations. Low-subscriber densities, distance, difficult terrain and limited spectrum combine to make cost-effectiveness a critical issue....
NetSuite Case Study: Sunset Companies
Sunset Companies needed to consolidate and analyze customer and accounting data from six Cingular cell phone stores and a limousine business as existing accounting system and customer database were not...
MSDN Webcast: 24 Hours of Windows Mobile Application Development: Creating Adaptive Applications for Windows Mobile Devices (Level 300)
One of the key issues that Windows Mobile developers face is the issue of application compatibility across the range of Windows Mobile devices. As new devices are released, they introduce...
Differences Between the Nokia 9210 Communicator and Nokia 9210i Communicator
This document compares the features between Nokia 9210 Communicator and the new Nokia 9210i Communicator. The topics include software/hardware changes, web browser and built-in memory.
Global System for Mobile Communication (GSM)
Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization group established in 1982 to create a common...
