Long Term Evolution (LTE) is considered a 4G network technology. According to the GSMA, the trade group that promotes the GSM family of technologies, LTE is the next step from 3G/WCDMA & HSPA for many already on the GSM technology curve. Interestingly, though, a number of carriers across the world on the CDMA technology path have opted to switch to LTE for their 4G network upgrades. According to the GSMA, LTE is designed to be backwards-compatible with GSM and HSPA, and incorporates Multiple In Multiple Out (MIMO) technology in combination with Orthogonal Frequency Division Multiple Access (OFDMA) in the downlink and Single Carrier FDMA in the uplink to provide high levels of spectral efficiency. LTE can support channel bandwidths from 1.4 MHz to 20 MHz and both FDD and TDD operation. Commercial LTE service was first launched in December 2009 in Scandinavia by TeliaSonera. In 2010, carriers in the U.S. and Japan both released commercial LTE services. In the United States, MetroPCS offers LTE service in the AWS spectrum band, while Verizon Wireless offers LTE service in the 700 MHz spectrum band. Verizon said its LTE network, which it brands as a 4G service, provides average download speeds of 5-12 Mbps. AT&T Mobility is planning to launch LTE service in the United States in 2011, and Clearwire is testing LTE service in the TDD and FDD configurations. Sprint Nextel also is keeping open the possibility of launching LTE service. LTE-Advanced is the next step up in the evolution of LTE. According to the GSMA, LTE-Advanced “extends the technological principles behind LTE into a further step change in data rates. Incorporating higher order MIMO (4x4 and beyond) and allowing multiple carriers to be bonded together into a single stream, target peak data rates of 1 Gbps have been set.”

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Schoolar: Stray observations from the 2015 LTE World Summit

Did you miss all the news coming out of LTE World Summit the other week? Did you even know it took place? You might not have known it was even going on if you weren't there. That, however, isn't exactly a bad thing.

du, Huawei ink 3-year UAE mobile broadband network deal

du teamed with Huawei to construct what the pair said will be the most advanced mobile broadband network in the United Arab Emirates (UAE).

Report: MediaTek gains ground on Qualcomm in LTE baseband market

Qualcomm has been the leader in the LTE baseband chipset market, and it still is, but it now has a clear strong competitor in the form of MediaTek, according to a new report from research firm Strategy Analytics.

Strategy Analytics: U.S. to have 387M LTE subscriptions in 2020

LTE networks will become more ubiquitous and popular in the years ahead, with the number of LTE subscriptions ballooning from around 210 million this year to around 387 million in 2020, according to a new report from research firm Strategy Analytics.

SK Telecom, Ericsson team up for 5G small cell demo

Super-low latency is expected to be one of the cornerstones of 5G, and SK Telecom and Ericsson are paving the way with a successful demonstration of small cell technology with super-low latency.

AT&T remains mum on LTE-Advanced, VoLTE for network in Mexico

AT&T is talking about investing $3 billion to build an LTE network in Mexico that will tie into its U.S. wireless network, but so far it's not saying much about whether it will deploy LTE-Advanced or VoLTE.

AT&T to spend $3B to cover 100M Mexicans with LTE by 2018

AT&T said it will spend $3 billion during the next four years to cover 100 million people in Mexico with LTE by the end of 2018.

Mallinson: Germany's spectrum auction shows how monopoly power can be exploited- and hurt operators

Spectrum is too valuable to be given away. However; a more sophisticated array of operations obligations and commitments could encourage more capital to be invested in improving mobile networks and services, and making them cheaper, rather than simply siphoning off as much money as possible from operators in auction proceeds for governments to spend on other programmes outside telecommunications.

T-Mobile shutting off HSPA+ service on its AWS spectrum market by market

T-Mobile US is in the process of shutting down HSPA+/UMTS service on its 1700 MHz AWS-1 spectrum as it completes the transition to supporting those services on its 1900 MHz PCS spectrum.

Analysts: AT&T will focus more on profitability and keeping churn low than on promotions

AT&T Mobility will continue to focus on maintaining profitability and keeping churn low in its wireless business at the expense of losing some subscribers, according to a report from analysts at investment bank Jefferies.