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Glossary
Access Channel A reverse CDMA
channel used by mobile stations for
communicating to the base station. The
access channel is used for short signaling
message exchanges such as call
originations, responses to pages, and
registrations. The access channel is a slotted
random access channel.
Added White Gaussian Noise (AWGN)
A broadband noise source used in
conjunction with a CDMA signal source to
test receiver performance.
Autostart A feature of the Test Set’s
IBASIC controller that automatically runs
any program in non-volatile memory when
the power switch is set to ON.
Average Power A method of measuring
the signal level of a CDMA transmitter. The
sampled signal is quantified in terms of
average level. Multiple samples are then
time-averaged to display a final power
measurement.
Base Station (BS) A fixed-location
transceiver in a communications network.
The land station in a cellular or PCS
network carrying on a radio communication
with mobile units.
CDMA See Code Division Multiple
Access.
CDMA Channel The set of channels
transmitted from the base station and the
mobile stations on a given frequency. See
also forward CDMA channel and reverse
CDMA channel.
CDMA Frequency Assignment A
1.23 MHz segment of spectrum centered on
one of the 30 kHz channels of the existing
analog system.
CDMA Generator A functional block in
the CDMA Cellular Adapter that generates
pilot PN sequences with externally or
internally applied channel data. A noise
generator is also incorporated that is
capable of generating calibrated E
b
/N
o
signals.
Cellular Adapter The HP 83203B or
83205A CDMA digital cellular "top box"
for the HP 8921A Cell Site Test Set.
Channel A transmission path between two
points. It is usually the smallest subdivision
of a particular transmission system by
means of which a single type of
communication service is provided.
Code Channel A subchannel of a forward
CDMA channel. A forward CDMA
channel contains 64 code channels. Code
channel zero is assigned to the pilot
channel. Code channels 1 through 7 may be
assigned to either the paging channels or the
traffic channels. Code channel 32 may be
assigned to either a sync channel or a traffic
channel. The remaining code channels may
be assigned to traffic channels.
Code Division Multiple Access (CDMA)
A technique for spread-spectrum, multiple-
access digital communications that creates
channels through the use of unique code
sequences.
Glossary