Acronyms (Wireless)
ALD Antenna Line Devices belonging to the AISG network; eg: RET, TMA
AISG Antenna Integrated Services Group --www.aisg.org; oversees the Antenna tower deployed services for example remote antenna position control using RET. Standard: AISG 2.0 (2006)
CDMA Code Division Multiple Access --Spread Spectrum technique
CPRI Common Public Radio Interface --standard for the REC-RE link, and supports both Optical and Copper media
DAS Distributed Antenna System, --either Outdoor (analog; RF over Fiber) or Indoor (WiFi or digital)
D&D Design & Development
eNB enhanced Node-B (LTE term for Base Station; BS)
HW Hard Ware --hardware
3G 3rd Generation, --at this time we are in 4G (--mid 2012 on)
3GPP 3rd Generation Partnership Project
LTE Long Term Evolution --part of 3-4G standard which supports the evolution of wireless technology supporting hi-data rates, beside voice.
RAN Radio Access Network
RE Radio Equipment
REC RE Controller --which basically controls the Radio functions (--and provides Network Interface)
RET Remote Electrical Tilt device for antenna tilt and azimuth control; belonging to AISG ALD.
TDMA Time Division Multiple Access, --time slotted (divisioned), usage of frequency band
TDD LTE version of TDM (Time Division Multiplex)
TT-LNA Tower Top - Low Noise Amplifier in the Receiver path to offset the Antenna cable loss --the Transmit Power Amplifier may not be on the tower
TMA Tower Mounted Amplifier; Low Noise for receiver antenna cable loss offset gain typically 15dB, Noise Figure NF around 1dB; with a built in appropriate band filter
UMTS Universal Mobile Telephone System
WB Wide Band
W-CDMA or Wide-Band CDMA