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  2. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.

  3. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

  4. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    MCC MNC Brand Operator Status Bands (MHz) References and notes 365: 010: Digicel: Operational: GSM 850 / UMTS 850 / UMTS 1900 / LTE 700 [1]365: 840: FLOW: Cable & Wireless

  5. List of mobile network operators in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_network...

    AT&T, T-Mobile, Verizon, Boost Mobile, and UScellular also sell SIM cards through their retail channels, both in-store and online. The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the ...

  6. 5G - Wikipedia

    en.wikipedia.org/wiki/5G

    Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in ...

  7. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Yes, Access to Verizon nationwide 5g and UWB (mm wave) 5g capped at 200 Mbit/s, however the speed cap is not strictly enforced. Yes, Unlimited hotspot; Speeds capped at 5 Mbit/s (not typically enforced- usually same speed as the phone); Only one device may connect to the mobile hotspot at a time, however this is not enforced on iPhones, Pixels ...

  8. United States Cellular Corporation - Wikipedia

    en.wikipedia.org/wiki/United_States_Cellular...

    United States Cellular Corporation ( doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power). The company was formed in 1983 and is headquartered in Chicago, Illinois.

  9. AT&T restores service after hours of outage - AOL

    www.aol.com/news/cellular-outage-us-hits-t...

    AT&T, whose 5G network covers around 290 million people across the United States, has been grappling with interruptions to its service for more than 10 hours. AT&T restores service after hours of ...

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