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5. Abbreviations
Table 5-1 Abbreviations and Definitions
Abbreviation
or Term
Definition
3GPP
3rd Generation Partnership Project
BeiDou
BeiDou Navigation Satellite System
A Chinese system that uses a series of satellites in geostationary and middle earth orbits
to provide navigational data.
BER
Bit Error Rate
— A measure of receive sensitivity
dB
Decibel = 10 x log10 (P1/P2)
P1 is calculated power; P2 is reference power
Decibel = 20 x log10 (V1/V2)
V1 is calculated voltage, V2 is reference voltage
dBm
A logarithmic (base 10) measure of relative power (dB for decibels); relative to milliwatts
(m). A dBm value will be 30 units (1000 times) larger (less negative) than a dBW value,
because of the difference in scale (milliwatts vs. watts).
DRX
Discontinuous Reception
EIRP
Effective (or Equivalent) Isotropic Radiated Power
EMC
Electromagnetic Compatibility
EMI
Electromagnetic Interference
FCC
Federal Communications Commission
The U.S. federal agency that is responsible for interstate and foreign communications.
The FCC regulates commercial and private radio spectrum management, sets rates for
communications services, determines standards for equipment, and controls broadcast
licensing. Consult
FDD
Frequency Division Duplexing
Galileo
A European system that uses a series of satellites in middle earth orbit to provide
navigational data.
GCF
Global Certification Forum
GLONASS
Global Navigation Satellite System
— A Russian system that uses a series of 24
satellites in middle circular orbit to provide navigational data.
GNSS
Global Navigation Satellite Systems (GPS, GLONASS, BeiDou, and Galileo)
GPS
Global Positioning System
An American system that uses a series of 24 satellites in middle circular orbit to provide
navigational data.
Host
The device into which an embedded module is integrated
HSPA+
Enhanced HSPA, as defined in 3GPP Release 7 and beyond
Hz
Hertz = 1 cycle/second
IC
Industry Canada
IF
Intermediate Frequency
LTE
Long Term Evolution
— a high-performance air interface for cellular mobile
communication systems.
MHz
Megahertz = 10e6 Hz
MIMO
Multiple Input Multiple Output
— wireless antenna technology that uses multiple antennas
at both transmitter and receiver side. This improves performance.
OEM
Original Equipment Manufacturer
— a company that manufactures a product and sells it
to a reseller.
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