GSM: Global System for Mobile Communication
Handover (Am.: Handoff): change of operation on frequency channel to a new frequency channel as the user moves from from one cell to another.
low power design: design methods that minimize battery power consumption in order to increase the "talk-time" and minimize weight and size of the handheld.
macro cellular network: cellular network with cell sizes on the order of several hundreds of meters up to 30 km or even more
micro cellular network: cellular network with small cell sizes (of a few hundred meters at most)
MSC: Mobile Switching Center (Network entity that control several base stations)
RF: Radio frequency
pico cellular network: cellular network with extremely small cell sizes (of a few meters)