Natural Disasters

As fires rage through Southern California it seems appropriate to consider the effect of natural disasters on our critical Emergency Wireless infrastructure. At the time of writing, winds continue to threaten structures in Ventura County and surrounding areas which threaten not only the population and housing but also the communication infrastructure such as cellular services,…
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So what exactly is this 5G thingy and when will it arrive?

Lots of recent news and hype about 5G but interesting trends are developing.  On the one hand companies such as Qualcomm continue to promote millimeter wave (mmW) bands including 28GHz and 39GHz for high-speed high capacity communications. Some of this is obviously fueled by their need to justify expensive new chips for new markets but…
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Battery… Power?

Recently Ericsson, Qualcomm, and Verizon teamed with Federated Wireless in a demonstration of LTE Advanced Carrier Aggregation in the Citizens Broadband Radio Service (CBRS) spectrum.  The CBRS band is essentially shared spectrum consisting of 150 MHz of 3.5 GHz spectrum known as band 48. Nicola Palmer, Wireless Chief Network Officer for Verizon said, “The use…
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Smarter Cities

Who’s in charge here? A complex question when it comes to the role of cities and municipalities with the expansion of cellular services and the contrast in approaches to accomplishing this goal. Should cities have all the authority and right of way, or should it be the carriers? With recent developments that highlight the role…
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C-RAN Speed Deployment of In-Building Cellular Service

C-RAN is a relatively new concept but may be a significant consideration in widespread in-building deployment. This is especially true for smaller buildings or venues where it is not cost effective to install expensive RF source equipment at an individual location. With C-RAN (which stands for Cloud RAN or Centralized RAN), the baseband processing for…
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Interference in Cellular Systems

Most all of us know that all wireless systems are interference limited. In Macro cellular design, great efforts are made to minimize interference, both internally generated and externally generated from various sources in order to maximize capacity. However, modern wireless systems including LTE and LTE-A (Advanced) are increasingly susceptible to interference due in part to…
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