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Femtocell
In telecommunications, a femtocell is a small, low-power cellular base station, typically designed for use in a home or small business. A broader term which is more widespread in the industry is '' small cell'', with ''femtocell'' as a subset. It connects to the service provider's network via broadband (such as DSL or cable); current designs typically support four to eight simultaneously active mobile phones in a residential setting depending on version number and femtocell hardware, and eight to sixteen mobile phones in enterprise settings. A femtocell allows service providers to extend service coverage indoors or at the cell edge, especially where access would otherwise be limited or unavailable. Although much attention is focused on WCDMA, the concept is applicable to all standards, including GSM, CDMA2000, TD-SCDMA, WiMAX and LTE solutions. The use of femtocells allows network coverage in places where the signal to the main network cells might be too weak. Furthermore, fem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femtocells
In telecommunications, a femtocell is a small, low-power cellular base station, typically designed for use in a home or small business. A broader term which is more widespread in the industry is ''small cell'', with ''femtocell'' as a subset. It connects to the service provider's network via broadband (such as digital subscriber line, DSL or cable television, cable); current designs typically support four to eight simultaneously active mobile phones in a residential setting depending on version number and femtocell hardware, and eight to sixteen mobile phones in enterprise settings. A femtocell allows service providers to extend service coverage indoors or at the cell edge, especially where access would otherwise be limited or unavailable. Although much attention is focused on W-CDMA, WCDMA, the concept is applicable to all standards, including GSM, CDMA2000, TD-SCDMA, WiMAX and LTE (telecommunication), LTE solutions. The use of femtocells allows network coverage in places where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Cell
Small cells are low-powered cellular radio access nodes that operate in licensed and unlicensed spectrum that have a range of 10 meters to a few kilometers. In other words, they are base stations with low power consumption and cheap cost that are operated in a licensed spectrum. They can provide high data rates by being deployed densely to achieve high spatial spectrum efficiency. Recent FCC orders have provided size and elevation guidelines to help more clearly define small cell equipment. They are "small" compared to a mobile macrocell, partly because they have a shorter range and partly because they typically handle fewer concurrent calls or sessions. As wireless carriers seek to 'densify' existing wireless networks to provide for the data capacity demands of "5G", small cells are currently viewed as a solution to allow re-using the same frequencies, and as an important method of increasing cellular network capacity, quality, and resilience with a growing focus using LTE Ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Home NodeB
A Home Node B, or HNB, is the 3GPP's term for a 3G femtocell or Small Cell. A Node B is an element of a 3G macro Radio Access Network, or RAN. A femtocell performs many of the function of a Node B, but is optimized for deployment in the indoor premises and small coverage public hotspots. The femtocell concept was originally conceived for residential environment. However, it has evolved to include other usages such as enterprise and public hotspots. Home eNode B is an LTE counterpart of the HNB. Architecture Within an HNB Access Network there are three new network elements: the Home Node B (or femtocell), the Security Gateway (SeGW) and the Home Node B Gateway, or HNB-GW. Between the HNB and the HNB-GW is a new interface known as Iu-h. Home Node B (HNB) – Connected to an existing residential broadband service, an HNB provides 3G radio coverage for 3G handsets within a home. HNBs incorporate the capabilities of a standard Node B as well as the radio resource manageme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microcell
A microcell is a cell in a mobile phone network served by a low power cellular base station (tower), covering a limited area such as a mall, a hotel, or a transportation hub. A microcell is usually larger than a picocell, though the distinction is not always clear. A microcell uses power control to limit the radius of its coverage area. Typically the range of a microcell is less than two kilometers wide, whereas standard base stations may have ranges of up to 35 kilometres (22 mi). A picocell, on the other hand, is 200 meters or less, and a femtocell is on the order of 10 meters, although AT&T calls its femtocell that has a range of , a "microcell". AT&T uses "AT&T 3G MicroCell" as a trade mark and not necessarily the "microcell" technology, however. A microcellular network is a radio network composed of microcells. Rationale Like picocells, microcells are usually used to add network capacity in areas with very dense phone usage, such as train stations. Microcells are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picocell
A picocell is a small cellular base station typically covering a small area, such as in-building (offices, shopping malls, train stations, stock exchanges, etc.), or more recently in-aircraft. In cellular networks, picocells are typically used to extend coverage to indoor areas where outdoor signals do not reach well, or to add network capacity in areas with very dense phone usage, such as train stations or stadiums. Picocells provide coverage and capacity in areas difficult or expensive to reach using the more traditional macrocell approach. Overview In cellular wireless networks, such as GSM, the picocell base station is typically a low-cost, small (typically the size of a ream of A4 paper), reasonably simple unit that connects to a base station controller (BSC). Multiple picocell 'heads' connect to each BSC: the BSC performs radio resource management and hand-over functions, and aggregates data to be passed to the mobile switching centre (MSC) or the gateway GPRS support node ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Access Point
In computer networking, a wireless access point (WAP), or more generally just access point (AP), is a networking hardware device that allows other Wi-Fi devices to connect to a wired network. As a standalone device, the AP may have a wired connection to a router, but, in a wireless router, it can also be an integral component of the router itself. An AP is differentiated from a hotspot which is a physical location where Wi-Fi access is available. Connections An AP connects directly to a wired local area network, typically Ethernet, and the AP then provides wireless connections using wireless LAN technology, typically Wi-Fi, for other devices to use that wired connection. APs support the connection of multiple wireless devices through their one wired connection. Wireless data standards There are many wireless data standards that have been introduced for wireless access point and wireless router technology. New standards have been created to accommodate the increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sprint Nextel
Sprint Corporation was an American telecommunications company. Before it Merger of Sprint Corporation and T-Mobile US, merged with T-Mobile US on April 1, 2020, it was the fourth-largest mobile network operator in the United States, serving 54.3 million customers as of June 30, 2019. The company also offered wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile (United States), Boost Mobile and Open Mobile brands and wholesale access to its wireless networks to mobile virtual network operators. In July 2013, a majority of the company was purchased by the Japanese telecommunications company SoftBank Group. Sprint used CDMA2000, CDMA, Evolution-Data Optimized, EvDO and LTE (telecommunication), 4G LTE networks, and formerly operated iDEN, WiMAX, and 5G NR networks. Sprint was incorporated in Kansas. Sprint traced its origins to the Brown Telephone Company, which was founded in 1899 to bring telephone service to the rural area arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile TeleSystems
MTS (russian: Мобильные ТелеСистемы, МТС, "Mobile TeleSystems"), headquartered in Moscow, is the largest mobile network operator in Russia, operating on GSM, UMTS and LTE standards. Apart from cellular network, the company also offers local telephone service, broadband, mobile television, cable television, satellite television and digital television. As of Q1 2021, the company serves over 84.9 million subscribers in Russia, Armenia and Belarus. Operations Branding In May 2006, MTS changed their logo as a part of rebranding campaign performed by their parent company, JSFC Sistema. The logo now has two red squares next to each other. The left one, common in form (but not colour) to all JSFC Sistema's telecom subsidiaries, contains a white egg which symbolises simplicity and genius, while the right square bears the name of the company: МТС (MTS). In 2010, MTS announced acquisition of Sistema Telecom, the owners of the MTS "egg" logo, for $380 million, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-Mobile US
T-Mobile US, Inc. is an American wireless network operator headquartered in Overland Park, Kansas and Bellevue, Washington, U.S. Its largest shareholder is a multinational telecommunications company Deutsche Telekom AG, which , holds 48.4 percent of the common stock. T-Mobile US is the second-largest wireless carrier in the United States, with more than 110 million subscribers . The company was founded in 1994 as VoiceStream Wireless before Deutsche Telekom purchased it 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 over $40 billion. In 2015, ''Consumer Reports'' named T-Mobile the number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange S
Orange most often refers to: *Orange (fruit), the fruit of the tree species '' Citrus'' × ''sinensis'' ** Orange blossom, its fragrant flower * Orange (colour), from the color of an orange, occurs between red and yellow in the visible spectrum *Some other citrus or citrus-like fruit, see '' list of plants known as orange'' * ''Orange'' (word), both a noun and an adjective in the English language Orange may also refer to: Arts, entertainment, and media Films * ''Game of Life'' (film), a 2007 film originally known as ''Oranges'' * ''Orange'' (2010 film), a Telugu-language film * ''The Oranges'' (film), a 2011 American romantic comedy starring Hugh Laurie * ''Orange'' (2012 film), a Malayalam-language film * ''Orange'' (2015 film), a Japanese film * ''Orange'' (2018 film), a Kannada-language film Music Groups and labels * Orange (band), an American punk rock band, who formed in 2002 from California * Orange Record Label, a Canadian independent record label, founded 2003 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O2 (UK)
O₂ UK (legally incorporated as Telefonica UK Limited, stylized as O₂) is a British telecommunications services provider, headquartered in Slough, England. It operates under the O2 brand. It is owned by Virgin Media O2, a 50:50 joint venture between Telefónica and Liberty Global. O2 is the UK's largest mobile network operator, with 31.3 million subscribers as of September 2021. History Overview The company was formed on 7 January 1985 as Cellnet, a 60:40 joint venture between BT Group and Securicor. Cellnet was one of the first two mobile networks in the UK, alongside Vodafone. In 1999, BT acquired Securicor's share of Cellnet and the company was later rebranded as BT Cellnet. In June 2000, BT Cellnet launched the world's first commercial General Packet Radio Service (GPRS) service. The company, together with BT Group's mobile telecommunications businesses in Germany, Ireland and the Netherlands, was part of the BT Wireless division. This was spun off from the BT Group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vodafone
Vodafone Group plc () is a British multinational telecommunications company. Its registered office and global headquarters are in Newbury, Berkshire, England. It predominantly operates services in Asia, Africa, Europe, and Oceania. , Vodafone owns and operates networks in 22 countries, with partner networks in 48 further countries. Its Vodafone Global Enterprise division provides telecommunications and IT services to corporate clients in 150 countries. Vodafone has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. The company has a secondary listing on Nasdaq. Name The name Vodafone comes from ''VO''ice ''DA''ta ''FONE'' (the latter a sensational spelling of " phone"), chosen by the company to "reflect the provision of voice and data services over mobile phones". History The evolution of Vodafone started in 1981 with the establishment of the Racal Strategic Radio Ltd subsidiary of Racal Electronics, the UK's largest maker of mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
