SYSC 5306: Mobile Computing Systems

Thomas Kunz

Systems and Computer Engineering

7

AMPS Architecture

first-level MTSO

(Mobile Telephone

Switching Office)

second-level

MTSO

Cells: typically 10-20 km across

Phones transmit at 0.6 watts

Frequency reuse, cluster size = 7

MTSOs perform channel

assignment, connect AMPS

to PSTN, are “heart” of the

system. Base stations are

just radio relays

first-level MTSO

first-level MTSO