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2. Cellular repeater - Wikipedia

   en.wikipedia.org/wiki/Cellular_repeater

   A cellular repeater (also known as cell phone signal booster or cell phone signal amplifier) is a type of bi-directional amplifier used to improve cell phone reception. [citation needed] A cellular repeater system commonly consists of a donor antenna that receives and transmits signal from nearby cell towers, coaxial cables, a signal amplifier, and an indoor rebroadcast antenna.

3. Vehicle-to-everything - Wikipedia

   en.wikipedia.org/wiki/Vehicle-to-everything

   The radio technology is part of the WLAN IEEE 802.11 family of standards and known in the US as Wireless Access in Vehicular Environments (WAVE) and in Europe as ITS-G5. [14] To complement the direct communication mode, vehicles can be equipped with traditional cellular communication technologies, supporting V2N based services.

4. Cellular V2X - Wikipedia

   en.wikipedia.org/wiki/Cellular_V2X

   Cellular V2X uses 3GPP standardised 4G LTE or 5G mobile cellular connectivity to exchange messages between vehicles, pedestrians, and wayside traffic control devices such as traffic signals. It commonly uses the 5.9 GHz frequency band, which is the officially designated intelligent transportation system (ITS) frequency in most countries.

5. List of wireless network technologies - Wikipedia

   en.wikipedia.org/wiki/List_of_wireless_network...

   In addition to simply providing faster speeds, they predict that 5G networks will also need to meet the needs of new use-cases such as the Internet of things (IoT) as well as broadcast-like services and lifeline communications in times of disaster. 3GPP has set an early revision, non-standalone release of 5G called New Radio (5G NR). [6]

6. Smart antenna - Wikipedia

   en.wikipedia.org/wiki/Smart_antenna

   Smart antenna techniques are used notably in acoustic signal processing, track and scan radar, radio astronomy and radio telescopes, and mostly in cellular systems like W-CDMA, UMTS, and LTE and 5G-NR. [1] Smart antennas have many functions: DOA estimation, beamforming, interference nulling, and constant modulus preservation.

7. Remote radio head - Wikipedia

   en.wikipedia.org/wiki/Remote_Radio_Head

   FTTA architecture has enabled lower power requirements, distributed antenna sites, and a reduced base station footprint than conventional tower sites. The use of FTTA will promote the separation of power and signal components from the base station and their relocation to the top of the tower mast in a Remote Radio Head (RRH).