7 |
TR 101 274 V1.1.1 (1998-06) |
3 Symbols and abbreviations
3.1Symbols
For the purposes of the present document, the following symbols apply:
dB |
Decibel |
dBi |
Decibel gain relative to isotropic radiation |
dBm |
Decibel relative to 1 mW |
GHz |
Gigahertz |
J |
Joule |
K |
Kelvin (degrees) |
kbit/s |
Kilobit per second |
kHz |
Kilohertz |
km |
Kilometre |
Mbaud |
Megasymbols per second |
Mbit/s |
Megabit per second |
MHz |
Megahertz |
ms |
Milliseconds |
mW |
Milliwatt |
s |
microsecond |
3.2Abbreviations
For the purposes of the present document, the following abbreviations apply:
A |
Attenuation |
B |
Exponent of frequency f in sco-formula taking care of regional effects |
BRF |
Bandwidth Radio Frequency |
BER |
Bit Error Ratio |
C |
Exponent of link range r in sco-formula taking care of regional effects |
CCS |
Central Controller Station |
CDMA |
Code Division Multiple Access |
C/I |
Carrier to Interference |
CRS |
Central Radio Station |
CS |
Central Station |
DAMA |
Demand Assigned Multiple Access |
DBA |
Dynamic Bandwidth Allocation |
D/R |
The minimum Distance between the centre of the cells with the same frequency-Radius of the cell |
DRRS |
Digital Radio Relay Systems |
DS-CDMA |
Direct Sequence Code Division Multiple Access |
Eb |
Energy per information bit |
ES |
Errored Seconds |
ESR |
Errored Second Ratio |
F |
Noise figure in dB |
FEC |
Forward Error Correction |
f |
Operative Frequency |
FDD |
Frequency Division Duplex |
FDMA |
Frequency Division Multiple Access |
FEC |
Forward Error Correction |
FH-CDMA |
Frequency Hopping Code Division Multiple Access |
FSK |
Frequency Shift Keying |
GOS |
Grade Of Service |
GSM |
Global System for Mobile Communications |
ISDN |
Integrated Services Digital Network |
k |
Boltzmann constant |
KQ |
Product of factors describing climatic and terrain effects |
ld(n) |
Base two logarithm of quantity (n) |
ETSI