User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
12
Glossary of Terms & Abbreviations
Term Stands For.... Meaning
802.11
802.11 Standard An IEEE LAN standard for wireless Ethernet replacement
technology in the ISM band. Runs at up to 10 Mbps.
ACC
Access Channel or
Access Code Channel
AKA, Paging Channel. The signal path that tells a mobile to
prepare for an incoming call.
ACK
Acknowledge Positive message sent by a protocol to acknowledge reception
of a transmitted packet
AP
Access Point Wireless LAN transceiver that acts as a center point of an all-
wireless network or as a connection point between wireless and
wired networks.
AMI
Alternate Mark Inversion Old method for encoding data on a 64 kbps channel, which
requires 8 kbps to maintain synchronization, leaving only 56
kbps available to transmit data
ARP
Address Resolution Protocol The function of the ARP is to match higher-level network IP
addresses with the physical hardware address of a piece of
equipment.
ARQ
Automatic Repeat reQuest A protocol for error control in data transmission that
automatically requests the transmitter to resend a packet when
the receiver detects an error in the packet.
ASYNCH
Asynchronous
N
ot occurring at regular intervals, as in data piped over a
network
AWG
American Wire Gauge A measure of thickness of copper, aluminum or other wiring in
the U.S.
ATM
Asynchronous Transfer Mode Transporting a broad range of user data at irregular intervals
over network facilities
B8ZS
Biploar 8-Zero Substitution An encoding method used on T1 circuits that inserts two
successive ones of the same voltage - referred to as a bipolar
violation - into a signal whenever eight consecutive zeros are
transmitted.
BB
Broadband RF system with constant data rate of 1.5 Mbps or higher.
BBU
Battery Backup Unit Equipment used to keep a BTS operating in the event of a
power outage
BCC
Broadcast Code (or Control)
Channel
A channel of data transmitted by one entity and received by
many devices.
BoM
Bill of Materials List of the actual equipment to be manufactured and shipped to
the installation site.
BS
Base Station
N
etwork Access equipment and software that transmits and
receives, as well as processes, voice or data calls from mobile
units to network connections. A Ripwave Base Station consists
of the Base Transceiver Station (BTS) and the Radio
Frequency Subsystem (RFS), or antenna, plus a Global
Positioning System (GPS) antenna for timing.
BTS
Base Transceiver Station The Ripwave BTS is a two-shelf rack that holds the RF
modules and digital circuit cards that interpret radio signals
into computer language and sends messages to and from the
local or wide area network. It functions between the RFS and
the EMS to handle the signaling.
BW
Bandwidth Frequency spectrum usable for data transfers. It describes the
maximum data rate that a signal can attain on the medium
without encountering significant loss of power. Usually
expressed in bits per second (digital) or Hertz (analog).
BYTE
Byte 8 bits