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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LTE

Latest Headlines

Latest Headlines

Telenor, Telekom Austria open door to 220M subscribers with LTE roaming deal

Telekom Austria Group and Telenor Global Services--the international carrier division of Telenor Group--penned an LTE roaming deal that opens the door to a potential market of 220 million subscribers globally.

Sprint's Claure: In 18-24 months, we'll be No. 1 or 2 in network performance

Sprint CEO Marcelo Claure has a bold claim: that within two years, Sprint will have the top network among U.S. carriers.

Russian carriers push to catch up in LTE race

Despite low LTE penetration, Russian mobile operators are starting to close the gap with their Western European counterparts in terms of LTE deployments, even though the government has never held an auction for LTE spectrum.  Special report

Russian LTE deployments are picking up steam despite many challenges

Despite low LTE penetration, Russian mobile operators are starting to close the gap with their Western European counterparts in terms of LTE deployments, even though the government has never held an auction for next-generation frequencies. However, operators face several challenges in boosting LTE adoption, including a large number of prepaid users on 2G networks and a tough geographical environment that takes its toll on network infrastructure and its deployment.

Russian LTE deployments gathering pace

Russia is gearing up to hold its first LTE spectrum auction in the second half of 2015, although a lack of auctions has not stopped the country's mobile operators pressing ahead with rollouts of the technology.

Telekom Slovenije to offer triple-play bundle over LTE network

Telekom Slovenije (Slovenia) announced plans to utilise its LTE network to provide a triple-play bundle of services to areas where physical infrastructure is not currently available.

Nokia touts its LTE Network in a box

Targeting public safety and the energy industry, Nokia Networks is launching a compact, rapidly deployable LTE network in a box with macro site capacity and coverage to provide real-time communication services.

Sprint: 16 of 30 rural LTE roaming partners have now launched LTE service

A little more than half of Sprint's rural LTE roaming partners have launched LTE service, according to a Sprint spokeswoman, though it is unclear exactly which ones have done so.

Huawei, Qualcomm demonstrate 600 Mbps using LTE Cat 11

Huawei and Qualcomm Technologies have completed tests using LTE CAT11, achieving a downlink peak data rate of up to 600 Mbit/s by aggregating three component carriers--3CC carrier aggregation--with 256QAM (Quadrature Amplitude Modulation).

Ho's Perspective: As T-Mobile and Sprint catch up to Verizon and AT&T on LTE coverage, capacity comes into focus

Carrier aggregation will pick up as the speed war, fueled by the never ending RootMetrics reports and the subsequent carrier press releases and earnings call citations. AT&T and Verizon's network transformations are "skating to where the puck will be" in an effort to become more agile and drive down costs. So far smaller Sprint and T-Mobile haven't seen this need. There's no doubt that more changes will come about this year.