T-Mobile US, Inc. is an American wireless network operator headquartered in Overland Park, Kansas, and Bellevue, Washington, U.S. Its largest shareholder is multinational telecommunications company Deutsche Telekom AG, which , holds a 53.3% majority stake in the company. T-Mobile US is the third-largest wireless carrier in the United States, with 113.6 million subscribers at the end of Q4 2022.
The company was founded in 1994 by John W. Stanton of the Western Wireless Corporation as VoiceStream Wireless. Deutsche Telekom then gained plurality ownership in 2001 and renamed it after its T-Mobile brand. T-Mobile US provides wireless voice and data services in the United States under the T-Mobile and Metro by T-Mobile brands (the latter was acquired via the purchase of MetroPCS in a reverse takeover in 2013, resulting in T-Mobile going public on the NASDAQ stock exchange), and also serves as the host network for many mobile virtual network operators. The company has annual revenues of around 80billion.In2015,ConsumerReportsnamedT−MobilethenumberoneAmericanwirelesscarrier.OnApril1,2020,T−MobileandSprintCorporationcompletedtheirmerger,withT−MobilenowbeingthesoleownerofSprint,makingSprintaneffectivesubsidiaryofT−MobileuntiltheSprintbrandwasofficiallydiscontinuedonAugust2,2020,withtheheadquartersbecomingT−Mobileoffices.Aspartofthemerger,T−MobileUSacquiredAssuranceWireless,theservicesubsidizedbytheLifelineAssistanceprogramofthefederalUniversalServiceFund.T−MobileU.S.tracesitsrootstothe1994establishmentofVoiceStreamWirelessPCSasasubsidiaryofWesternWirelessCorporation.AfteritsspinofffromparentWesternWirelessonMay3,1999,VoiceStreamWirelesswaspurchasedbyDeutscheTelekomAGin2001for35 billion and renamed T-Mobile USA, Inc., in July 2002. In 2013, T-Mobile and MetroPCS finalised a merger of the two companies which started trading as T-Mobile U.S.
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In telecommunications, 5G is the fifth-generation technology standard for broadband cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the planned successor to the 4G networks which provide connectivity to most current cellphones. Like its predecessors, 5G networks are cellular networks, in which the service area is divided into small geographical areas called cells. All 5G wireless devices in a cell are connected to the Internet and telephone network by radio waves through a local antenna in the cell.
The iPad is a brand of iOS and iPadOS-based tablet computers that are developed by Apple Inc, first introduced on January 27, 2010. The iPad range consists of the original iPad lineup and the flagship products iPad Mini, iPad Air, and iPad Pro. The iPhone's iOS operating system (OS) was initially used for the iPad but in September 2019, its OS was switched to a fork of iOS called iPadOS that has better support for the device's hardware and its user interface is customized for the tablets' larger screens.
AT&T Mobility LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the largest wireless carrier in the United States, with 217.4 million subscribers at the end of Q4 2022. The company is headquartered in Brookhaven, Georgia. Originally known as Cingular Wireless (a joint venture between SBC Communications and BellSouth) from 2000 to 2007, the company acquired the old AT&T Wireless in 2004; SBC later acquired the original AT&T and adopted its name.
Students extend their knowledge on wireless communication systems to spread-spectrum communication and to multi-antenna systems. They also learn about the basic information theoretic concepts, about c
Course dealing with the design and fabrication of fundamental components of smart phones front-end communication (filters, duplexers, quadplexers).
This is a collection of lectures on "structured innovation systems," codified approaches to stimulating and managing the process of innovation. Some of the systems to be covered may be Design Thinking
Advanced antenna system (AAS) is a viable option for 5G millimeter-wave (mmWave) applications. AAS single element is favored to be dual-polarized, wideband, high gain, and compact in order to be utilized for 5G antenna arrays. In this paper, a low complexi ...
Millimeter wave (mmWave) frequencies has become a research area of interest in recent years because of providing broad available bandwidth and thus higher data rates. Wideband mmWave antenna is one of the important development areas in wireless communicati ...
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To answer the growing demand for hardware acceleration, Amazon, Microsoft, and many other major cloud service providers have included field-programmable gate arrays (FPGAs) in their datacenters. However, researchers have shown that cloud FPGAs, when shared ...