Red
MAX
™
Base Station
user manual
Doc. #70-00058-01-01-DRAFT
Proprietary Redline Communications © 2006
November
29,
2006
Page 101 of 106
Term
Acronym Definition
Link Layer
Control
LLC
Layer 2 Link Layer Control
Link Budget
Tool
Software application to characterize the range
performance for LOS, OLOS and NLOS conditions for
selected system settings.
Local Area
Network
LAN
A data communications network, typically within a
building or campus linking computers, printers and
other devices together.
Local Exchange
Carriers
LEC
The traditional local wired phone company.
Management
Connection
-
A connection that is established during initial
subscriber registration that is used to transport delay-
tolerant medium access control management
messages and even higher layer management and
control messages. Each Subscriber has three
management connections BASIC, PRIMARY and
SECONDARY.
Media Access
Control
MAC
A unique number assigned to a network device. It
corresponds to the ISO Network Model Layer 2 data
link layer.
Megahertz MHz
1,000,000
Hz
Modulation
-
Any of several techniques for combining user
information with a transmitter carrier signal.
Multicast polling
group
-
A group of subscribers that are assigned a multicast
address for the purposes of polling.
Multipath
-
The RF echoes created from radio signal reflections.
Network Time
Protocol
NTP
Protocol for synchronizing a set of network clocks
using a set of distributed clients and servers. It is
implemented as Server on
BSC
for time
synchronization with subscribers and base stations.
Described in IETF RFC 958.
Non Line Of
Sight
NLOS
Completely obstructed path between two antennas.
NVRAM
Non-volatile RAM memory. Does not lose its data
when power is removed.
Non Real-Time
Priority
nrt-PS
The nrt-PS is designed to support non real-time
service flows that require variable size Data Grant
Burst Types on a regular basis, such as high
bandwidth FTP. The service offers unicast polls on a
regular basis, which assures that the flow receives
request opportunities even during network congestion.
The RedMAX base station base station typically polls
nrt-PS CIDs on an interval (periodic or periodic) on the
order of one second or less. The key service elements
are Minimum Reserved Traffic Rate, Maximum
Sustained Traffic Rate, Request/Transmission Policy,
and Traffic Priority.
Optical Line Of
Sight
OLOS
A clear direct path between two antennas, with
obstructions within the first Fresnel zone.