Short for
personal communications service, the U.S. Federal Communications Commission (FCC) term used to describe a set of digital
cellular technologies being deployed in the U.S. Also referred to as
digital cellular, PCS works over
CDMA (also called
IS-95),
GSM, and North American
TDMA (also called IS-136) air interfaces. Three of the most important distinguishing features of PCS systems are:
- They are completely digital
- They operate at the 1900MHz frequency range (unlike other cellular systems that operate in the 800MHz frequency range)
- They can be used internationally
PCS is a second-generation mobile communications technology.