Monthly Archives: October 2008

The objective of this project was to build a new cellular tower to enhance indoor/outdoor coverage and to alleviate traffic by introducing new 1.9GHz and 2.5GHz carriers to the area thereby improving capacity and to provide new high speed data services. As always, the project identifiers in this posting have been censored and this abstract serves simply to give a very brief overview of my involvement. I was designated the prime RF designer for this project from start to finish.

The area of concern resided in the downtown core where customer complaints were generated. Based on drive test data and computer simulation of the radio environment, I had devised the search ring for a new cellular site candidate. The leasing specialist was delegated to the project to find a candidate within the parameters of the search ring. Consequently, there were numerous locations found but had deviated away from the search ring. Further computer simulation of alternate locations were performed and compromises were documented and presented to Planning for concurrence.

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New Three-Sectored GSM/WCDMA/HSPA/WiMax 850/1900/2500MHz Macrocell RF System Design

In the pursuit for greater call clarity, echo cancelers have been the center of recent development, and have now become highly sophisticated transmission equipment at the heart of highly complex networks. Effective implementation of echo cancellation across the network holds the key to improving call quality and ultimately, strengthen customer satisfaction, boost revenues, and reduce subscriber churn.

Powerpoint Presentation

Echo Cancellation: A Study of Hybrid and Acoustic Echo Cancellation