Thomas Kunz
Systems and Computer Engineering
9
AMPS Identification Numbers
–three
identification numbers are used:
nmobile station’s serial number (SN)
–32-bit
binary number
–uniquely
identifies a cellular unit
–established
by manufacturer at the factory
•8-bit
manufacturer code, assigned by FCC to manufacturer
•6
bit reserved (currently all 0)
•18
bits serial number, assigned by manufacturer
–should
not be easily alterable, burned into ROM
nsystem identification number (SID)
–15-bit
binary number, uniquely identifies cellular system
–FCC
assigns SID
–mobile
station in the cell must transmit the SID
nmobile identification number (MIN)
–digital
representation of mobile’s 10-digit telephone number