DICTIONARY
Common terms & acronyms used in wireless industry
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Backhaul -
The part of the network responsible for transporting
communication data between the baseband unit (BBU) and
the core network. Connects smaller outlying networks with the
core network. Backhaul was often proprietary in earlier cellular
generations but is moving to ethernet in 5G.
Base Station Network Emulator -
A tool for simulating protocol and network traffic in a test
environment. Works in concert with UE emulation and channel
emulation to provide an end-to-end system for testing and
measuring 5G network performance at scale.
BBU - Baseband Unit -
A component of the base station. Equipment which handles
radio communications and radio control processing functions.
The baseband unit converts data into a digital signal and sends it on to the remote radio head (RRH), which then converts it into
an analog signal. In a C-RAN architecture, the baseband unit is
usually geographically separated from the radio head.
BDA - Bi-Directional Amplifier -
BDA’s boost wireless cellular signals and are commonly used as part of over-the-air DAS systems deployed in smaller venues
Beam Acquisition -
The process of discovering and connecting with UEs. This
process is substantially changing in 5G with the deployment of
highly directional antenna arrays and beamforming techniques.
Beam Steering -
A set of techniques used to focus the direction and shape of a
radiation pattern. In wireless communications, beam steering
changes the direction of the signal and narrows the width of
the transmitted signal, typically by manipulating relative phase
and amplitude shifts of the signal through an array of multiple
antenna elements.
Beamforming -
The method of applying relative phase and amplitude shifts to
each antenna element to shape and provide discrete control
of the direction of a transmitted beam. Beamforming requires
communication channel feedback to implement real-time
control of the beam.
BTS - Base Transceiver Station -
A high power radio-frequency station deployed by carriers for iDAS and oDAS installations
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