ACCHL - Associated Control Channel, L-… 
AI - Access Identifier 
BPSK - Binary Phase Shift Keying 
CC - Call Control 
CEPT - Conference Europeenne des Poste… 
DE-BPSK - Differentially Encoded Binar… 
DE-QPSK - Differentially Encoded Quate… 
DFOA - Difference of Frequency of Arri… 
DTOOA - Difference of Time of Arrival 
DTOOA/DFOA - Difference of Time of Arr… 
EIRP - Effective Isotropic Radiated Po… 
ETSI - European Telecommunications Sta… 
FDMA - Frequency Division Multiple Acc… 
GE - Geopolitical Entity 
GMPCS - Global Mobile Personal Communi… 
GPS - Global Positioning System 
GSM - Global System for Mobile Communi… 
HLR - Home Location Register 
ISU - Individual Subscriber Unit 
ITU-R - International Telecommunicatio… 
kbps - kilo bits per second 
ksps - kilo symbols per second 
LAC - Location Area Code 
LBP - L-Band Physical 
LEA - Law Enforcement Agency 
LEMF - Law Enforcement Monitoring Faci… 
LEO - Low Earth Orbit 
LL - L-Band Link 
MAP - Mobile Application Part 
MM - Mobility Management