Cellular frequencies in the United States information
Cellular frequencies in the United States are allocated by the US Federal Communications Commission. As cellular mobile telephone technology has evolved over time, periodically bands of frequencies are reassigned from other radio services. Companies wishing to provide cellular services in a geographic region compete for the right to license radio spectrum in spectrum auctions. Different cellular companies in the same region may use different levels of cellular technology and different parts of the radio spectrum. In addition to radio frequencies used to connect handsets with cellular base stations, other parts of the radio spectrum are used to interconnect base stations and the wired telephone network. Some frequency bands may be vulnerable to interference by existing services in adjacent frequency bands, such as UHF television broadcasting.
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Cellularfrequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices...
UnitedStatesCellular Corporation (doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. It is a subsidiary...
that the same frequencies are not reused in adjacent cells, which would cause co-channel interference. The increased capacity in a cellular network, compared...
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transmission services (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their...
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IntheUnitedStates, the Citizens Band Radio Service (CBRS), commonly called citizens band radio (CB radio), is one of several personal radio services...
common pool of frequencies used by the system. The purpose of cellular organization is to conserve radio bandwidth by frequency reuse; the low power radio...
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intheUnitedStates. The first system was successfully deployed in Chicago, Illinois, in 1979. Motorola and others designed and built thecellular phones...
rate for the first time in a lab environment within the terahertz frequency band, which is supposed to be the base of 6G cellular technology. In February...
of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking...
networks Cellularfrequencies GSM frequency bands LTE frequency bands 5G NR frequency bands CDMA frequency bands Mobile network code Roaming UnitedStates 2008...
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See CDMA frequency bands. Advanced Wireless Services – A wireless telecommunications spectrum band Cellularfrequencies – Ultra high frequency radio bands...
high frequency (UHF) is the ITU designation for radio frequenciesinthe range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre...
internet access and high-bandwidth cellular service, and key world events, such as growing up in a world after the September 11th terrorist attacks. During...
could eavesdrop. The commercial introduction (in Japan in 1979) of cellular technology, which allowed re-use of frequencies many times in small adjacent...
frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term...
5G but with a shorter range. The IEEE recommends the use of frequencies ranging from 100 GHz to 3 THz, as these frequencies are relatively unused and would...
Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile...
addition to the low- and medium-band frequencies used in previous cellular networks. For providing a wide range of services, 5G networks can operate in three...
monopoly on telephone service intheUnitedStates. It was usually the largest company inthe U.S. in terms of assets. In 1900, the Bell system plant was valued...
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