Worldwide Interoperability for Microwave Access (WiMAX) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options.
4G is the fourth generation of broadband cellular network technology, succeeding 3G and preceding 5G. A 4G system must provide capabilities defined by ITU in IMT Advanced. Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, and 3D television.
KT Corporation, formerly Korea Telecom, is a South Korean telecommunications company. KT is the second-largest wireless carrier in South Korea, with 16.493 million subscribers as of Q4 2017.
In radio, multiple-input and multiple-output, or MIMO, is a method for multiplying the capacity of a radio link using multiple transmission and receiving antennas to exploit multipath propagation. MIMO has become an essential element of wireless communication standards including IEEE 802.11n, IEEE 802.11ac, HSPA+ (3G), WiMAX, and Long Term Evolution (LTE). More recently, MIMO has been applied to power-line communication for three-wire installations as part of the ITU G.hn standard and of the HomePlug AV2 specification.
LTE Advanced (LTE+) is a mobile communication standard and a major enhancement of the Long Term Evolution (LTE) standard. It was formally submitted as a candidate 4G to ITU-T in late 2009 as meeting the requirements of the IMT-Advanced standard, and was standardized by the 3rd Generation Partnership Project (3GPP) in March 2011 as 3GPP Release 10.
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements. LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported.
International Mobile Telecommunications-Advanced are the requirements issued by the ITU Radiocommunication Sector (ITU-R) of the International Telecommunication Union (ITU) in 2008 for what is marketed as 4G mobile phone and Internet access service.
Ruckus Networks is a brand of wired and wireless networking equipment and software owned by CommScope. Ruckus offers Switches, Wi-Fi access points, CBRS access points, Controllers, Management systems, Cloud management, AAA/BYOD software, AI and ML analytics software, location software and IoT controller software products to mobile carriers, broadband service providers, and corporate enterprises. As a company, Ruckus invented and has patented wireless voice, video, and data technology, such as adaptive antenna arrays that extend signal range, increase data rates, and avoid interference, providing distribution of delay-sensitive content over standard 802.11 Wi-Fi.
Sony Semiconductor Israel Ltd., formerly known as Altair Semiconductor, is an Israeli developer of high performance single-mode Long Term Evolution (LTE) chipsets. The company's product portfolio includes baseband processors, RF transceivers and a range of reference hardware products. Founded in 2005, Altair employs 190 employees in its Hod Hasharon, Israel headquarters and R&D center, and has regional offices in the United States, Japan, China, India, Finland, and France. Altair Semiconductor was the first chipset vendor to receive certification from Verizon Wireless to run on its 4G LTE network. Altair has also powered several devices launched on Verizon's network including the Ellipsis 7 tablet and HP Chromebook 11.6"LTE. In January 2016, it was announced that Sony was acquiring Altair for $212 Million. Altair was renamed Sony Semiconductor Israel on March 29, 2020.
ip.access Limited is a multinational corporation that designs, manufactures, and markets small cells technologies and infrastructure equipment for GSM, GPRS, EDGE, 3G, 4G and 5G. The company was acquired by Mavenir, the cloud-native software supplier to the communication service provider in September 2020.
Guowang Miao is an associate professor at KTH Royal Institute of Technology, Sweden, working on design and optimization of wireless communications and networking and the author of Fundamentals of Mobile Data Networks and Energy and Spectrum Efficient Wireless Network Design.
SpiderCloud Wireless was founded in November 2006 as Evoke Networks by Peter Wexler, Allan Baw, and Mark Gallagher. The trio incubated the company as Copivia Inc. and hired Mike Gallagher as CEO in October 2007. After closing the Series-A funding in January 2008, the company soon changed its name to SpiderCloud Wireless. The company is now headquartered in Milpitas, California. The company is backed by investors Charles River Ventures, Matrix Partners, Opus Capital and Shasta Ventures. It has raised around US$125 million in venture capital and is generating revenue from customers such as Vodafone UK, Vodafone Netherlands, Verizon Wireless, Warid Telecom and more. The company helps mobile operators improve service quality for enterprise customers.
The first smart antennas were developed for military communications and intelligence gathering. The growth of cellular telephone in the 1980s attracted interest in commercial applications. The upgrade to digital radio technology in the mobile phone, indoor wireless network, and satellite broadcasting industries created new opportunities for smart antennas in the 1990s, culminating in the development of the MIMO technology used in 4G wireless networks.
Multiple-input, multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is the dominant air interface for 4G and 5G broadband wireless communications. It combines multiple-input, multiple-output (MIMO) technology, which multiplies capacity by transmitting different signals over multiple antennas, and orthogonal frequency-division multiplexing (OFDM), which divides a radio channel into a large number of closely spaced subchannels to provide more reliable communications at high speeds. Research conducted during the mid-1990s showed that while MIMO can be used with other popular air interfaces such as time-division multiple access (TDMA) and code-division multiple access (CDMA), the combination of MIMO and OFDM is most practical at higher data rates.
Telrad Networks Ltd. is an Israeli company focused on 4G telecommunications.
Sequans Communications is a fabless semiconductor company that designs, develops, and markets integrated circuits ("chips") and modules for 4G and 5G cellular IoT devices. The company is based in Paris, France with offices in the United States, United Kingdom, Israel, Hong Kong, Singapore, Taiwan, South Korea, Finland and China. The company was founded as a société anonyme in October 2003 by Georges Karam. It originally focused on the WiMAX market and expanded to the LTE market in 2009, dropping WiMAX altogether in 2011. Today the company develops and delivers only LTE chips and modules for the global 5G/4G cellular IoT market. Sequans was listed on the New York Stock Exchange in April 2011. Karam is the company's CEO.
LTE in unlicensed spectrum is an extension of the Long-Term Evolution (LTE) wireless standard that allows cellular network operators to offload some of their data traffic by accessing the unlicensed 5 GHz frequency band. LTE-Unlicensed is a proposal, originally developed by Qualcomm, for the use of the 4G LTE radio communications technology in unlicensed spectrum, such as the 5 GHz band used by 802.11a and 802.11ac compliant Wi-Fi equipment. It would serve as an alternative to carrier-owned Wi-Fi hotspots. Currently, there are a number of variants of LTE operation in the unlicensed band, namely LTE-U, License Assisted Access (LAA), and MulteFire.
LitePoint is a wireless test company. The company’s hardware and software can be used to verify quality of wireless connectivity in smartphones, tablets, PCs, wireless access points and chipsets across WLAN and cellular technologies, including 5G, Bluetooth, Low Power Wide Area (LPWAN), NFC, Wi-Fi 6, Wi-Fi 6E, UWB, V2X and Zigbee. LitePoint claims it works with all of the leading chipset companies.
