LTE (telecommunication)

LTE4G LTETD-LTE3GPP Long Term EvolutionLong Term EvolutionLTE networkLong-Term EvolutionTDD-LTELTE-FDDLTE-TDD
In telecommunication, 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 technologies.wikipedia
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LTE frequency bands

LTE bandsBandLTE-FDD
The different LTE frequencies and bands used in different countries mean that only multi-band phones are able to use LTE in all countries where it is supported.
Long Term Evolution (LTE) telecommunications networks use several frequency bands with associated bandwidths.

LTE Advanced

LTE-ALTE-Advanced4G+
LTE is commonly marketed as "4G LTE and Advance 4G", but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced.
LTE Advanced is a mobile communication standard and a major enhancement of the Long Term Evolution (LTE) standard.

4G

4G LTE3G evolution4-G
LTE is commonly marketed as "4G LTE and Advance 4G", but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. Long-Term Evolution Time-Division Duplex (LTE-TDD), also referred to as TDD LTE, is a 4G telecommunications technology and standard co-developed by an international coalition of companies, including China Mobile, Datang Telecom, Huawei, ZTE, Nokia Solutions and Networks, Qualcomm, Samsung, and ST-Ericsson.
The first-release Long Term Evolution (LTE) standard was commercially deployed in Oslo, Norway, and Stockholm, Sweden in 2009, and has since been deployed throughout most parts of the world.

WiMAX

Mobile WiMAXWiMAX ForumWi-Max
However, due to marketing pressures and the significant advancements that WiMAX, Evolved High Speed Packet Access and LTE bring to the original 3G technologies, ITU later decided that LTE together with the aforementioned technologies can be called 4G technologies. Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
It is compatible and inter-operable with TD-LTE.

3GPP

3rd Generation Partnership ProjectThird Generation Partnership Project (3GPP).3gpp
The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9.
They are primarily Release 6 systems, but as of 2010, growing interest in HSPA+ and LTE is driving adoption of Release 7 and its successors.

HTC ThunderBolt

ThunderBoltMecha
The LTE services were launched by major North American carriers as well, with the Samsung SCH-r900 being the world's first LTE Mobile phone starting on September 21, 2010, and Samsung Galaxy Indulge being the world's first LTE smartphone starting on February 10, 2011, both offered by MetroPCS, and the HTC ThunderBolt offered by Verizon starting on March 17 being the second LTE smartphone to be sold commercially.
The HTC ThunderBolt (ADR6400L) was the first 4G LTE smartphone on the Verizon Wireless network.

Bell Mobility

BellAliant MobilityBell Digital
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
Bell Mobility Inc. is a Canadian LTE and HSPA+ based wireless provider and the division of Bell Canada which offers wireless services across Canada.

Telus Mobility

TelusTelus (CA)
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
It operates networks using HSPA+, and LTE on its mainstream networks.

NTT Docomo

DoCoMoDoCoMo Capital90xi Series Mobile Phone
LTE was first proposed in 2004 by Japan's NTT Docomo, with studies on the standard officially commenced in 2005.
It provides 2G (mova) PDC cellular services, 3G (FOMA) W-CDMA services and 4G LTE services.

Metro by T-Mobile

MetroPCSMetro PCSMetroPCS Communications, Inc.
The LTE services were launched by major North American carriers as well, with the Samsung SCH-r900 being the world's first LTE Mobile phone starting on September 21, 2010, and Samsung Galaxy Indulge being the world's first LTE smartphone starting on February 10, 2011, both offered by MetroPCS, and the HTC ThunderBolt offered by Verizon starting on March 17 being the second LTE smartphone to be sold commercially. Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
In 2013, the carrier engaged in a reverse merger with T-Mobile USA; post-merger, its services were merged under T-Mobile's 4G and LTE network.

Evolved High Speed Packet Access

HSPA+DC-HSPA+DC-HSDPA
However, due to marketing pressures and the significant advancements that WiMAX, Evolved High Speed Packet Access and LTE bring to the original 3G technologies, ITU later decided that LTE together with the aforementioned technologies can be called 4G technologies.
HSPA+ is an evolution of HSPA that upgrades the existing 3G network and provides a method for telecom operators to migrate towards 4G speeds that are more comparable to the initially available speeds of newer LTE networks without deploying a new radio interface.

Verizon Wireless

VerizonBell Atlantic MobileBoulder
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
It operates a national 4G LTE network covering about 98 percent of the U.S. population, which in December 2015 won or tied for top honors in each category of the RootMetrics RootScore Reports.

2G

2.5G2.75G2.5
The LTE wireless interface is incompatible with 2G and 3G networks, so that it must be operated on a separate radio spectrum.
Various carriers have made announcements that 2G technology in the United States is in the process of being shut down so that carriers can reclaim those radio bands and re-purpose them for newer technologies (e.g. 4G LTE).

Rogers Wireless

RogersCantelRogers AT&T
In Canada, Rogers Wireless was the first to launch LTE network on July 7, 2011, offering the Sierra Wireless AirCard 313U USB mobile broadband modem, known as the "LTE Rocket stick" then followed closely by mobile devices from both HTC and Samsung.
Rogers operates HSPA+, long-term evolution (LTE) networks in all of Canada's provinces and offers roaming in Canada's territories.

Au (mobile phone company)

auEZwebau by KDDI
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
Au launched LTE service as 'Au 4G LTE' in September 2012.

IMT Advanced

IMT-AdvancedInternational Mobile Telecommunications (IMT)
The requirements were originally set forth by the ITU-R organisation in the IMT Advanced specification.
Long Term Evolution (LTE) has a theoretical net bitrate maximum capacity of 100 Mbit/s in the downlink and 50 Mbit/s in the uplink if a 20 MHz channel is used.

List of countries by 4G LTE penetration

4G LTE penetration4G LTE coverage
For the complete list of all the countries/territories, see list of countries by 4G LTE penetration.
This is a list of countries by 4G LTE penetration.

SK Telecom

Hanaro TelecomOksusuSK Telink
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
As of September 2012, SK Telecom operates 2G IS-95/CDMA 2000, 3G WCDMA/HSPA+, 4G Mobile WiMAX, and LTE networks.

Sprint Corporation

SprintSprint NextelSprint Nextel Corporation
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
On July 28, 2011, Sprint announced that it had decided to end its rollout of the 4G network using WiMAX technology, in favor of more internationally accepted LTE technology.

China Telecom

China Telecom (Macau) Co. LtdChina Telecom Corp., LtdChina Telecom Corporation Limited
Initially, CDMA operators planned to upgrade to rival standards called UMB and WiMAX, but major CDMA operators (such as Verizon, Sprint and MetroPCS in the United States, Bell and Telus in Canada, au by KDDI in Japan, SK Telecom in South Korea and China Telecom/China Unicom in China) have announced instead they intend to migrate to LTE.
The subsidiary was also renamed to China Telecom (Macau) In 2015 China Telecom (Macau) acquired the 4G LTE license from the Macau S.A.R. authority.

ST-Ericsson

ST Ericsson
Long-Term Evolution Time-Division Duplex (LTE-TDD), also referred to as TDD LTE, is a 4G telecommunications technology and standard co-developed by an international coalition of companies, including China Mobile, Datang Telecom, Huawei, ZTE, Nokia Solutions and Networks, Qualcomm, Samsung, and ST-Ericsson.
Ericsson contributed its 3G and 3GPP Long Term Evolution (LTE) platform technology.

GSM

Global System for Mobile CommunicationsGSM networkGSM (850/900/1800/1900)
In telecommunication, 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 technologies. The IP-based network architecture, called the Evolved Packet Core (EPC) designed to replace the GPRS Core Network, supports seamless handovers for both voice and data to cell towers with older network technology such as GSM, UMTS and CDMA2000.

GPRS core network

SGSNGGSNServing GPRS Support Node
The IP-based network architecture, called the Evolved Packet Core (EPC) designed to replace the GPRS Core Network, supports seamless handovers for both voice and data to cell towers with older network technology such as GSM, UMTS and CDMA2000.
With LTE scenario the GGSN functionality moves to SAE gateway (with SGSN functionality working in MME).

Huawei

Huawei TechnologiesHuawei Technologies Co. Ltd.Huawei Technologies Co. Ltd
Long-Term Evolution Time-Division Duplex (LTE-TDD), also referred to as TDD LTE, is a 4G telecommunications technology and standard co-developed by an international coalition of companies, including China Mobile, Datang Telecom, Huawei, ZTE, Nokia Solutions and Networks, Qualcomm, Samsung, and ST-Ericsson.
Huawei delivered one of the world's first LTE/EPC commercial networks for TeliaSonera in Oslo, Norway in 2009.

Huawei SingleRAN

SingleRAN
That year Huawei also launched a commercial network based on SingleRAN that offered simultaneous CDMA and LTE modes.