Navini Networks, Inc.
Ripwave Base Station I&C Guide
Part #40-00047-00 Rev D v1.0
15
February 28, 2003
Term
Stands For....
Meaning
RAM
Random Access Memory
Computer memory that can be accessed randomly.
RF
Radio Frequency
A portion of the electromagnetic spectrum in the frequency
range between audio and infrared: 100 KHz to 20 GHz. RF
measurements are expressed in Hz (unit for measuring
frequency); MHz = 1 Million Hz; GHz = 1 Billing Hz.
RFS
Radio Frequency Subsystem
A term for the antenna portion of the base station.
RSSI
Receiver Signal Strength Indicator A term that describes the measure of the signal strength in
kilohertz or gigahertz between the transmission and the receiving
end.
Rx
Receive
An abbreviated way of expressing the term, receive, as in to
receive a transmission.
S-CDMA
Synchronous Code Division
Multiple Access
Wireless technology based on data being transferred at a fixed
rate using Code Division Multiple Access algorithms.
SMDS
Switched Multi-megabit Data
Service
Connectionless service for MAN/WAN based on 53-byte packets
that target the interconnection of different LAN’s into a public
switched network at speeds higher than T1.
SMS
1
Short Message Service or
2
Systems Management Server
1
A protocol that allows mobile users to send text-based messages
from one device to another. The text appears on a device’s screen
and may be a maximum 160 characters in length.
2
A Windows
NT process that allows a network administrator to inventory all
hardware and software on the network, then perform software
distribution over the LAN.
SNMP
Simple Network Management
Protocol
Standard management request-reply protocol for managing
TCP/IP networks. A device is said to be SNMP compatible if it
can be monitored or controlled using SNMP messages.
SNR
Signal-to-noise Ratio
Related to RSSI, a measurement of the intended signal being
transmitted against the other entities that can interfere with the
signal.
SO/HO
Small Office/Home Office
Small, remote office with a MAN or WAN connection back to a
larger corporate network and/or the Internet.
SSI
Signal Strength Indicator
See “RSSI”.
SW
Software
Computer instructions or data.
SYN
Synthesizer Card
A circuit card in the Navini BTS digital shelf that provides a
local oscillator and system clock with a single calibration
transceiver. The card is used to calibrate the Base Station so that
no external spectrum analyzer or signal generator is required.
SYNCH
Synchronous
Digital packets or signals that are sent at the same, precisely
clocked fixed rate of speed.
TCC
1
Traffic Channel or
2
Transmission
Control Code
1
A portion of a radio channel used to enable transmission of one
direction of a digitized voice conversation (as opposed to the
Voice Channel).
2
A way of segregating traffic in order to define
controlled communities of interest among subscribers.
TCP
Transport Control Protocol
A standardized transport protocol between IP-based network
nodes that allows two hosts to establish a connection and
exchange streams of data. TCP operates on top of Internet
Protocols and handles the multiplexing of sessions, error
recovery, reliability and flow; it guarantees packets are delivered
in the same order in which they were sent.
TCP/IP
Transport Control
Protocol/Internet Protocol
A set of protocols that allows cooperating computers to share
resources across the network. TCP provides the reliability in the
transmission, while IP provides connectionless packet service.