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- Cellular_frequencies abstract "Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assignet for cellular phone use. Most cellular phone networks worldwide use portions of the radio frequency spectrum, allocated to the Mobile service, for the transmission and reception of their signals. The particular bands may also be shared with other radiocommunication services, e.g. Broadcasting service, and Fixed service operation.Radio frequencies used for cellular networks differ in ITU Regions (Americas, Europe, Africa and Asia). The first commercial standard for mobile connection in the United States was AMPS, which was in the 800 MHz frequency band. In Nordic countries of Europe, the first widespread automatic mobile network was based on the NMT-450 standard, which was in the 450 MHz band. As mobile phones became more popular and affordable, mobile providers encountered a problem because they couldn't provide service to the increasing number of customers. They had to develop their existing networks and eventually introduce new standards, often based on other frequencies. Some European countries (and Japan) adopted TACS operating in 900 MHz. The GSM standard, which appeared in Europe to replace NMT-450 and other standards, initially used the 900 MHz band too. As demand grew, carriers acquired licenses in the 1,800 MHz band. (Generally speaking, lower frequencies allow carriers to provide coverage over a larger area, while higher frequencies allow carriers to provide service to more customers in a smaller area.)In the U.S., the analog AMPS standard that used the cellular band (800 MHz) was replaced by a number of digital systems. Initially, systems based upon the AMPS mobile phone model were popular, including IS-95 (often known as \"CDMA\", the air interface technology it uses) and IS-136 (often known as D-AMPS, Digital AMPS, or \"TDMA\", the air interface technology it uses). Eventually, IS-136 on these frequencies was replaced by most operators with GSM. GSM had already been running for some time on US PCS (1,900 MHz) frequencies.And, some NMT-450 analog networks have been replaced with digital networks using the same frequency. In Russia and some other countries, local carriers received licenses for 450 MHz frequency to provide CDMA mobile coverage area.Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. This portability is not as extensive with IS-95 phones, however, as IS-95 networks do not exist in most of Europe.Mobile networks based on different standards may use the same frequency range; for example, AMPS, D-AMPS, N-AMPS and IS-95 all use the 800 MHz frequency band. Moreover, one can find both AMPS and IS-95 networks in use on the same frequency in the same area that do not interfere with each other. This is achieved by the use of different channels to carry data. The actual frequency used by a particular phone can vary from place to place, depending on the settings of the carrier's base station.".
- Cellular_frequencies wikiPageExternalLink www.fcc.gov.
- Cellular_frequencies wikiPageExternalLink FCC-02-305A1.pdf.
- Cellular_frequencies wikiPageExternalLink 19Nov201024x36FreqChart.pdf.
- Cellular_frequencies wikiPageExternalLink www.wirelessadvisor.com.
- Cellular_frequencies wikiPageExternalLink frequencies-by-provider.
- Cellular_frequencies wikiPageID "5476962".
- Cellular_frequencies wikiPageLength "11649".
- Cellular_frequencies wikiPageOutDegree "84".
- Cellular_frequencies wikiPageRevisionID "704983645".
- Cellular_frequencies wikiPageWikiLink 3G.
- Cellular_frequencies wikiPageWikiLink 3GPP.
- Cellular_frequencies wikiPageWikiLink 4G.
- Cellular_frequencies wikiPageWikiLink AT&T_Mobility.
- Cellular_frequencies wikiPageWikiLink Advanced_Mobile_Phone_System.
- Cellular_frequencies wikiPageWikiLink Advanced_Wireless_Services.
- Cellular_frequencies wikiPageWikiLink Category:Radio_resource_management.
- Cellular_frequencies wikiPageWikiLink Code_division_multiple_access.
- Cellular_frequencies wikiPageWikiLink Comparison_of_mobile_phone_standards.
- Cellular_frequencies wikiPageWikiLink DVB-H.
- Cellular_frequencies wikiPageWikiLink Digital_AMPS.
- Cellular_frequencies wikiPageWikiLink E-UTRA.
- Cellular_frequencies wikiPageWikiLink EchoStar.
- Cellular_frequencies wikiPageWikiLink Europe.
- Cellular_frequencies wikiPageWikiLink Federal_Communications_Commission.
- Cellular_frequencies wikiPageWikiLink Fixed_service.
- Cellular_frequencies wikiPageWikiLink Frequency_allocation.
- Cellular_frequencies wikiPageWikiLink Frequency_assignment.
- Cellular_frequencies wikiPageWikiLink GSM.
- Cellular_frequencies wikiPageWikiLink GSM_frequency_bands.
- Cellular_frequencies wikiPageWikiLink IDEN.
- Cellular_frequencies wikiPageWikiLink IS-95.
- Cellular_frequencies wikiPageWikiLink International_Telecommunication_Union_region.
- Cellular_frequencies wikiPageWikiLink LTE_(telecommunication).
- Cellular_frequencies wikiPageWikiLink List_of_LTE_networks.
- Cellular_frequencies wikiPageWikiLink List_of_UMTS_networks.
- Cellular_frequencies wikiPageWikiLink List_of_WiMAX_networks.
- Cellular_frequencies wikiPageWikiLink List_of_mobile_network_operators.
- Cellular_frequencies wikiPageWikiLink List_of_mobile_network_operators_of_Europe.
- Cellular_frequencies wikiPageWikiLink List_of_mobile_network_operators_of_the_Americas.
- Cellular_frequencies wikiPageWikiLink List_of_mobile_network_operators_of_the_Asia_Pacific_region.
- Cellular_frequencies wikiPageWikiLink List_of_mobile_network_operators_of_the_Middle_East_and_Africa.
- Cellular_frequencies wikiPageWikiLink MediaFLO.
- Cellular_frequencies wikiPageWikiLink Microwave.
- Cellular_frequencies wikiPageWikiLink Mobile_country_code.
- Cellular_frequencies wikiPageWikiLink Mobile_phone.
- Cellular_frequencies wikiPageWikiLink Mobile_service.
- Cellular_frequencies wikiPageWikiLink Multi-band_device.
- Cellular_frequencies wikiPageWikiLink NASA.
- Cellular_frequencies wikiPageWikiLink Nordic_Mobile_Telephone.
- Cellular_frequencies wikiPageWikiLink Personal_Communications_Service.
- Cellular_frequencies wikiPageWikiLink Qualcomm.
- Cellular_frequencies wikiPageWikiLink Radio_frequency.
- Cellular_frequencies wikiPageWikiLink Radiocommunication_service.
- Cellular_frequencies wikiPageWikiLink Roaming.
- Cellular_frequencies wikiPageWikiLink Specialized_Mobile_Radio.
- Cellular_frequencies wikiPageWikiLink Sprint_Corporation.
- Cellular_frequencies wikiPageWikiLink T-Mobile_US.
- Cellular_frequencies wikiPageWikiLink Time_division_multiple_access.
- Cellular_frequencies wikiPageWikiLink Title_47_of_the_Code_of_Federal_Regulations.
- Cellular_frequencies wikiPageWikiLink Total_Access_Communication_System.
- Cellular_frequencies wikiPageWikiLink U.S._Cellular.
- Cellular_frequencies wikiPageWikiLink UMTS_frequency_bands.
- Cellular_frequencies wikiPageWikiLink United_States_2008_wireless_spectrum_auction.
- Cellular_frequencies wikiPageWikiLink United_States_Department_of_Defense.
- Cellular_frequencies wikiPageWikiLink Verizon_Wireless.
- Cellular_frequencies wikiPageWikiLinkText "800 / 1,900 / 2,100".
- Cellular_frequencies wikiPageWikiLinkText "800, 1900, 2100".
- Cellular_frequencies wikiPageWikiLinkText "Cellular frequencies".
- Cellular_frequencies wikiPageWikiLinkText "Cellular".
- Cellular_frequencies wikiPageWikiLinkText "Cellular_frequencies#See_also".
- Cellular_frequencies wikiPageWikiLinkText "Frequency bands".
- Cellular_frequencies wikiPageWikiLinkText "bands".
- Cellular_frequencies wikiPageWikiLinkText "cellular frequencies".
- Cellular_frequencies wikiPageWikiLinkText "cellular spectrum".
- Cellular_frequencies wikiPageWikiLinkText "cellular".
- Cellular_frequencies wikiPageUsesTemplate Template:As_of.
- Cellular_frequencies wikiPageUsesTemplate Template:Await.
- Cellular_frequencies wikiPageUsesTemplate Template:Aye.
- Cellular_frequencies wikiPageUsesTemplate Template:Mobile_phones.
- Cellular_frequencies wikiPageUsesTemplate Template:Mobile_telecommunications_standards.
- Cellular_frequencies wikiPageUsesTemplate Template:Nay.
- Cellular_frequencies wikiPageUsesTemplate Template:Reflist.
- Cellular_frequencies subject Category:Radio_resource_management.
- Cellular_frequencies hypernym Sets.
- Cellular_frequencies type Train.
- Cellular_frequencies type Protocol.
- Cellular_frequencies type Redirect.
- Cellular_frequencies comment "Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assignet for cellular phone use. Most cellular phone networks worldwide use portions of the radio frequency spectrum, allocated to the Mobile service, for the transmission and reception of their signals. The particular bands may also be shared with other radiocommunication services, e.g.".
- Cellular_frequencies label "Cellular frequencies".
- Cellular_frequencies sameAs Q253773.
- Cellular_frequencies sameAs m.0dnknt.
- Cellular_frequencies sameAs Frékuénsi_sélulér.
- Cellular_frequencies sameAs Q253773.
- Cellular_frequencies wasDerivedFrom Cellular_frequencies?oldid=704983645.
- Cellular_frequencies isPrimaryTopicOf Cellular_frequencies.