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What is the difference between Cellular and PCS? May 17, 2009

Posted by HubTechInsider in Definitions, Fiber Optics, Mobile Software Applications, Telecommunications, Uncategorized, VUI Voice User Interface, Wireless Applications.
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Cellular is dual-classified as being inclusive of both analog and digital networks. Cellular networks began with analog infrastructures, and over time migrated this infrastructure to digital. In a cellular network, depending upon your location throughout the world, the operation frequencies are 800MHz to 900MHz band. Cellular infrastructure is generally based on a macrocell architecture. Macrocells involve a coverage area with a diameter of around 8 miles, and because of this large coverage area, cellular operates at high power levels, in a range of .6 to 3 watts.

PCS is a more recent technology, and has been all digital since inception. As with cellular, depending upon where you are located in the world, the frequency band of operation is in the 1.8GHz to 2GHz band. Instead of cellular macrocells, PCS uses two different infrastructures, both microcell and picocell. As these names imply, the coverage areas of these architectures are smaller than macrocells, around 1 mile in diameter. As a result, PCS uses much lower power levels – 100 milliwatts.

So the key differences between PCS and cellular are the frequencies in which they operate, coverage areas of their different cell architectures, and the power levels each uses to transmit signals. They work essentially the same way, use the same types of network elements, and perform the same functions.

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