|
APN |
Access Point Name. |
|
CEPT |
European Conference of Postal and Telecommunications Administrations. |
|
CoDec |
Coder/Decoder. |
|
CPICH RSCP |
Common Pilot Channel, Received Signal Code Power – level of radio signal received by a mobile terminal (UMTS). |
|
CS |
Circuit Switched. |
|
CSFB |
Circuit Switched Fallback. |
|
ECC |
Electronic Communications Committee. |
|
EPS |
Evolved Packet System – optimised 4G network packet-switched system, resulting from the evolution of 3G/UMTS systems, characterized by high data speed, low latency and for allowing multiple radio access network technologies. |
|
ETSI |
European Telecommunications Standards Institute. |
|
FCT |
Fundação para a Ciência e a Tecnologia, I.P. - the Foundation for Science and Technology, Public Institute. |
|
FTP |
File Transfer Protocol. |
|
GigaPIX |
Portuguese Internet Exchange Point. |
|
GSM |
Global System for Mobile communications (2G). |
|
HTTP |
Hyper Text Transfer Protocol. |
|
ITU |
International Telecommunications Union. |
|
LTE |
Long Term Evolution – 4G Mobile Communication System. |
|
MIMO |
Multiple Input Multiple Output – technology that uses multiple transmitters and receivers (antennas) to improve the performance of radio communications. |
|
MMS |
Multimedia Messaging Service. |
|
MMSC |
Multimedia Messaging Service Centre. |
|
MOS |
Mean Opinion Score – Quality index that quantifies the effort required to perceive an end-to-end type communication. 0 (zero) is the lowest limit, where no communication is established, and 5 (five) is the highest limit, where communication is perfect. |
|
PDP |
Packet Data Protocol. |
|
POLQA |
Perceptual Objective Listening Quality Assessment – algorithm used to analyse the audio quality of a voice communication (recommended by ITU: ITU-T Recommendation P.863 (01/2011)). |
|
PS |
Packet Switched. |
|
ISDN |
Integrated Services Digital Networks – technology used in the fixed access network. |
|
RF |
Radio Frequency. |
|
RSRP |
Reference Signal Received Power – level of radio signal received by a mobile terminal (LTE). |
|
RxLev |
Received signal level – level of radio signal received by a mobile terminal (GSM). |
|
Scanner RF |
Measuring equipment that draws radio signal levels for each frequency band channel. |
|
SIM |
Subscriber Identity Module – SIM card. |
|
SMS |
Short Message Service. |
|
SMSC |
Short Message Service Centre. |
|
SQuad-LQ |
SwissQual’s speech quality algorithm for Listening Quality. |
|
TCP/IP |
Transmission Control Protocol / Internet Protocol. |
|
UMTS |
Universal Mobile Telecommunications System – 3G Mobile Communication System. |
|
USIM |
UMTS Subscriber Identity Module – USIM card. |
|
VQuad |
Objective Model for Video Quality Assessment – algorithm developed by SwissQual. |
|
WCDMA |
Wideband Code Division Multiple Access – technology used in the radio component of UMTS communication systems. |
