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  2. 4G - Wikipedia

    en.wikipedia.org/wiki/4G

    The pre-4G 3GPP Long Term Evolution (LTE) technology is often branded "4G – LTE", but the first LTE release does not fully comply with the IMT-Advanced requirements. LTE has a theoretical net bit rate capacity of up to 100 Mbit/s in the downlink and 50 Mbit/s in the uplink if a 20 MHz channel is used — and more if multiple-input multiple ...

  3. Schools across U.S. restrict cellphones as students return to ...

    www.aol.com/schools-across-u-restrict-cellphones...

    "There is a certain pressure with phones," said Whitten, 39, who has been at the charter school for about three years. "Now they could go to school and just be students. They don't have to worry."

  4. 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.

  5. LTE (telecommunication) - Wikipedia

    en.wikipedia.org/wiki/LTE_(telecommunication)

    LTE stands for Long-Term Evolution [7] and is a registered trademark owned by ETSI (European Telecommunications Standards Institute) for the wireless data communications technology and a development of the GSM/UMTS standards. However, other nations and companies do play an active role in the LTE project.

  6. Will the iPhone Rule China's 4G Future? Apple in Talks with ...

    www.aol.com/2011/09/16/will-the-iphone-rule...

    China's largest wireless company, which also happens to be the largest in the world, is in talks with Apple (AAPL) about a 4G-enabled iPhone. " 'China Mobile and Apple hope to find a solution for ...

  7. iPhone 11 - Wikipedia

    en.wikipedia.org/wiki/IPhone_11

    The iPhone 11 is a smartphone designed, developed, and marketed by Apple Inc. It is the thirteenth generation of iPhone, succeeding the iPhone XR, and was unveiled on September 10, 2019, alongside the higher-end iPhone 11 Pro at the Steve Jobs Theater in Apple Park, Cupertino, by Apple CEO Tim Cook. Preorders began on September 13, 2019, and ...

  8. 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.

  9. When are kids too old for strollers? Experts say there are ...

    www.aol.com/lifestyle/kids-too-old-strollers...

    3. Make walking an engaging experience. The nerves about kids running off once they leave the stroller are definitely valid, but experts say parents can use safety leashes to keep kids close by or ...