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  2. 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.

  3. 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.

  4. Telecommunications in North Korea - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_in...

    The official name of the 3G mobile phone service in North Korea is called Koryolink, and is now effectively under the control of the state-owned Korea Post and Telecommunications Corporation (KPTC). [10] There has been a large demand for the service since it was launched. [11] In May 2010, more than 120,000 North Koreans owned mobile phones ...

  5. Mobile phone signal - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_signal

    Mobile phone signal. A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink ). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary.

  6. Cell Global Identity - Wikipedia

    en.wikipedia.org/wiki/Cell_Global_Identity

    Cell Global Identity ( CGI) is a globally unique identifier for a Base Transceiver Station in mobile phone networks. [ 1] It consists of four parts: Mobile Country Code (MCC), Mobile Network Code (MNC), Location Area Code (LAC) and Cell Identification (CI). It is an integral part of 3GPP specifications for mobile networks, for example, for ...

  7. Cell Broadcast - Wikipedia

    en.wikipedia.org/wiki/Cell_Broadcast

    Cell Broadcast (CB) is a method of sending short messages to multiple mobile telephone users in a defined area at the same time. It is defined by the ETSI's GSM committee and 3GPP and is part of the 2G, 3G, 4G LTE (telecommunication) and 5G standards. [1] It is also known as Short Message Service-Cell Broadcast (SMS-CB or CB SMS).

  8. 3G - Wikipedia

    en.wikipedia.org/wiki/3G

    3G is the third generation of wireless mobile telecommunications technology. It is the upgrade to 2G, 2.5G, GPRS and 2.75G Enhanced Data Rates for GSM Evolution networks, offering faster data transfer, and better voice quality. [ 1] This network was superseded by 4G, and later by 5G. This network is based on a set of standards used for mobile ...

  9. Samsung Galaxy S III - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_S_III

    U.S. version: 0.55 W/kg (head) 1.49 W/kg (body) [ 6] The Samsung Galaxy S III (unofficially known as the Samsung Galaxy S3) is an Android smartphone designed, developed, and marketed by Samsung Electronics. Launched in 2012, it had sold more than 80 million units overall, making it the most sold phone in the S series. [ 5] It is the third ...

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