ip.access ltd M180TVX Manual Do Utilizador
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COMPANY CONFIDENTIAL
110#010XA_GDE.doc
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Glossary of Terms and Abbreviations
10 Base-T
Basic Ethernet at 10 Mbit/sec
100 Base-T
Ethernet running at 100 Mbit/sec
ACH
Access Channel
ACK
Acknowledgement signal
ARFCN
Absolute Radio Frequency Channel Number
BCCH
Broadcast Control Channel
BCH
Broadcast Channel. A channel transmitted by one (e.g. BS) and received by
many (e.g. MS)
many (e.g. MS)
BER
Bit Error Rate
BSC
Base Station Controller. The 'brains' of a base station subsystem, controlling the
radio equipment in the BTS
radio equipment in the BTS
BSS
Base Station Subsystem (includes BTS and BSC)
BTS
Base Transceiver System (radio portion of BS)
dB
Decibel. 10 times the logarithm of the value in base 10
dBm
Decibels referenced to one milliwatt
DHCP
Dynamic Host Control Protocol. Allows automatic assignment of IP addresses on
a network
a network
DL
Downlink. Radio link from network 'down' to the terminal. Compare with UL
Ethernet ȀȀȀȀ
A LAN protocol using collision detection to resolve access contentionȀ
ETSI
European Telecommunications Specification Institute
FTP ȀȀȀȀ
File Transfer ProtocolȀ
Gateway MSC ȀȀȀȀA MSC designed to receive wireless calls from the PSTNȀ
GSM ȀȀȀȀ
GSM ȀȀȀȀ
Global System for Mobile CommunicationsȀ
Handoff ȀȀȀȀ
The process of a MS changing from one frequency in one cell or sector to a
different frequency in a neighbouring cell or sectorȀ
different frequency in a neighbouring cell or sectorȀ
IP
Internet Protocol
kbps
Kilobits per second
LAN
Local Area Network
LED
Light Emitting Diode
MAC
Medium Access Control (layer in a protocol stack)
MS
Mobile Station (wireless phone)
MSC
Mobile Switching Centre
NAK
Negative Acknowledgement signal
nanoBSC
ip.access term for a base station controller
nanoBTS
ip.access term for a picocellular basestation
NL
Neighbour List
NOC
Network Operations Centre
NWL
Network Listen Ip.access term for functionality of monitoring surrounding
basestations from the nanoBTS
basestations from the nanoBTS
OCXO
Oven Controlled Crystal Oscillator
OMC
Operations and Maintenance Centre
PC
Personal Computer
PLMN
Public Land Mobile Network. A cellular or PCS network
Protocol
A specification of the messages used to communicate over one or more
interfaces
interfaces
PS
Packet Switched
PSTN
Public Switched Telephone Network
QoS
Quality of Service. A list of measurable attributes such as bandwidth, delay and
jitter that should be met for a customer
jitter that should be met for a customer
RF
Radio Frequency