User's Manual

Table Of Contents
Glossary
55
N
NLOS: Non line-of-sight radio propagation path
O
ODU: Outdoor unit associated with an ST
OFDM: Orthogonal Frequency Division Multiplexing
P
PHY: The physical layer associated with the WiMAX interconnection stack
POTS: Plain Old Telephone Service
Q
QAM: Quadrature Amplitude Modulation
QoS: Quality of Service, which is used to specify level of data throughput
QPSK: Quadrature Phase Shift Keying
R
RF: Radio Frequency
Rx: Receive
S
SF: Service Flow
SIM: Subscriber Identity Module
SNMP: Simple Network Management Protocol
SNR: Signal-to-Noise Ratio
ST: Subscriber Terminal (interchangeable with CPE or SS)
T
TDMA: Time Division Multiple Access. Technology for delivering digital wireless service using time-
division multiplexing (TDM)
Tx: Transmit
U
UGS: Unsolicited Grant Service used to provide fixed bandwidth slots on the uplink for an ST to
transmit data at regular intervals. The bandwidth should be used by the UGS SF, however
the final decision of which SF (if any) uses the bandwidth slot is made by the ST.
V
VoIP: Voice over Internet Protocol