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EMTC
LTE-M or LTE-MTC (" Long-Term Evolution Machine Type Communication"), is a type of low-power wide-area network radio communication technology standard developed by 3GPP for machine-to-machine and Internet of Things (IoT) applications. LTE-M includes eMTC ("enhanced Machine Type Communication"), also known as LTE Cat-M1, whose specification was frozen in 3GPP Release 13 (LTE Advanced Pro), in June 2016. Competing 3GPP IoT technologies include NB-IoT and EC-GSM-IoT. The advantage of LTE-M over NB-IoT is its comparatively higher data rate, mobility, and voice over the network, but it requires more bandwidth, is more costly, and cannot be put into guard band portion of the frequency band for now. Compared to LTE Release 12 Cat-0 modem, an LTE-M model is claimed to be 80% less expensive (in terms of the bill of materials), support up to 18 dB better coverage, and a battery lifetime that can last up to several years. In March 2019, the Global Mobile Suppliers Association reported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long-Term Evolution
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. 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. LTE is also called 3.95G and has been marketed as "4G LTE" and "Advanced 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. The requirements were set forth by the ITU-R organisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6LoWPAN
6LoWPAN (acronym of "IPv6 over Low-Power Wireless Personal Area Networks") in '6LoWPAN: The Embedded Internet', Shelby and Bormann redefine the 6LoWPAN acronym as "IPv6 over lowpower wireless area networks," arguing that "Personal" is no longer relevant to the technology. was a working group of the Internet Engineering Task Force (IETF). It was created with the intention of applying the Internet Protocol (IP) even to the smallest devices,Mulligan, Geoff"The 6LoWPAN architecture" EmNets '07: Proceedings of the 4th workshop on Embedded networked sensors, ''ACM'', 2007 enabling low-power devices with limited processing capabilities to participate in the Internet of Things. The 6LoWPAN group defined encapsulation, header compression, neighbor discovery and other mechanisms that allow IPv6 to operate over IEEE 802.15.4 based networks. Although IPv4 and IPv6 protocols do not generally care about the physical and MAC layers they operate over, the low power devices and small packet size d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Of Things
The Internet of things (IoT) describes physical objects (or groups of such objects) with sensors, processing ability, software and other technologies that connect and exchange data with other devices and systems over the Internet or other communications networks. Internet of things has been considered a misnomer because devices do not need to be connected to the public internet, they only need to be connected to a network and be individually addressable. The field has evolved due to the convergence of multiple technologies, including ubiquitous computing, commodity sensors, increasingly powerful embedded systems, as well as machine learning.Hu, J.; Niu, H.; Carrasco, J.; Lennox, B.; Arvin, F.,Fault-tolerant cooperative navigation of networked UAV swarms for forest fire monitoring Aerospace Science and Technology, 2022. Traditional fields of embedded systems, wireless sensor networks, control systems, automation (including Home automation, home and building automation), indepen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE 802
IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LAN), personal area network (PAN), and metropolitan area networks (MAN). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. However, not all of these working groups are currently active. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. Isochronous signal networks, in which data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards projects. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LTE Sidelink
LTE may refer to: Science and technology * LTE (telecommunication) (Long-Term Evolution), a telephone and mobile broadband standard ** LTE Advanced, an enhancement *** LTE Advanced Pro * Compaq LTE, a line of laptop computers produced by Compaq * Leukotrienes, biochemical compounds involved in inflammatory response * Lifting-the-exponent lemma, a set of formulas for computing the p-adic valuation of special integers * Local thermodynamic equilibrium, in thermodynamics * Loss of tail-rotor effectiveness, a phenomenon that affects helicopters, caused by wind interrupting the rotors Organizations and companies * London Transport Executive, the 1948–1962 organisation responsible for public transport in Greater London * London Transport Executive (GLC), the 1970–1984 public transport executive agency within the Greater London Council * LTE International Airways, a 1987–2008 Spanish charter airline Other uses * Letter to the editor * Lam Tei stop (MTR station code), Hong Kong * Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-UTRA
E-UTRA is the air interface of 3rd Generation Partnership Project ( 3GPP) Long Term Evolution (LTE) upgrade path for mobile networks. It is an acronym for Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access, also referred to as the 3GPP work item on the Long Term Evolution (LTE) also known as the Evolved Universal Terrestrial Radio Access (E-UTRA) in early drafts of the 3GPP LTE specification. E-UTRAN is the initialism of Evolved UMTS Terrestrial Radio Access Network and is the combination of E-UTRA, user equipment (UE), and E-UTRAN Node B or Evolved Node B (eNodeB). It is a radio access network (RAN) which is referred to under the name EUTRAN standard meant to be a replacement of the UMTS and HSDPA/HSUPA technologies specified in 3GPP releases 5 and beyond. Unlike HSPA, LTE's E-UTRA is an entirely new air interface system, unrelated to and incompatible with W-CDMA. It provides higher data rates, lower latency and is optimized for packet data. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DASH7
DASH7 Alliance Protocol (D7A) is an open-source wireless sensor and actuator network protocol, which operates in the 433 MHz, 868 MHz and 915 MHz unlicensed ISM band/SRD band. DASH7 provides multi-year battery life, range of up to 2 km, low latency for connecting with moving things, a very small open-source protocol stack, AES 128-bit shared-key encryption support, and data transfer of up to 167 kbit/s. The DASH7 Alliance Protocol is the name of the technology promoted by the non-profit consortium called the DASH7 Alliance. International standard DASH7 Alliance Protocol originates from the ISO/IEC 18000-7 standard describing a 433 MHz ISM band air interface for active RFID. This standard was mainly used for military logistics. The DASH7 Alliance re-purposed the original 18000-7 technology in 2011 and made it evolve toward a wireless sensor network technology for commercial applications. The DASH7 Alliance Protocol covers all sub-GHz ISM bands, mak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weightless (wireless Communications)
Weightless was a set of low-power wide-area network (LPWAN) wireless technology specifications for exchanging data between a base station and thousands of machines around it. History An event was held at the Moller Centre in Cambridge, UK by Cambridge Wireless on September 30, 2011. Presentations were given by Neul, Landis+Gyr, Cable & Wireless, and ARM Holdings. The technology was promoted by the Weightless Special Interest Group (SIG), announced on December 7, 2012. The group was led by William Webb, a professor at Cambridge and a founder of the company Neul. Another event was held in September 2013, when version 1.0 was published. The name Weightless was chosen to reflect the low overhead per transmission for devices that need to communicate just a few bytes of data. The Weightless logo appears as uppercase letters with the 'W' appearing in the top-right corner of a light blue box that has a solid blue line above it. In September 2014, Cambridge-based Neul was acquired by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NB-Fi
NB-Fi Protocol is an open LPWAN protocol, which operates in unlicensed ISM radio band. Using the NB-Fi Protocol in devices allows data transmission range of up to 10 km in dense urban conditions, and up to 30 km in rural areas with up to 10 years on battery power. NB-Fi Protocol is developed by WAVIoT. Technology NB-Fi Protocol employs a Narrow Band technology that enables communication using the Industrial, Scientific and Medical ISM radio band (and in other parts of sub-GHz license-free spectrum as well). NB-Fi devices could be manufactured using widespread electronic components which could easily be manufactured or purchased in every particular country. WAVIoT has developed an NB-Fi transceiver that encapsulates the NB-Fi protocol at a physical layer. The NB-Fi transceiver supports 430–500 MHz and 860–925 MHz frequency bands at 50 to 25,600 bit/s data rates. The network is based on one-hop star topology and requires a SDR-technology base stations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LoRa
Lora is a female given name and family name in the Spanish language of French origin meaning from Lorraine, a region in Northeastern France. As a given name, Lora may also be a variant of Laura or derived from an Italian hypocoristic of either Eleonora or Loredana. People with the given name Lora *Lora (singer) (born 1982), Romanian singer *Lora Aborn (1907-2005), American composer *Lora Aroyo, Dutch computer scientist *Lora Beldon, American artist-curator * Lora L. Corum (1899-1949), American co-winner * Lora Fachie (born 1988), English racing cyclist *Lora Fairclough (born 1970), English professional golfer *Lora Lee Gayer (born 1988), American actress *Lora Grosu (born 1959), Moldovan politician *Lora Hirschberg (born 1963), American sound engineer * Lora Hooper, American biologist *Lora Hubbel, American politician * Lora Johnson, American author * Lora Lazar, Bulgarian crime writer *Lora Leigh (born 1965), American author *Lora Logic (born 1960), British saxophonist *Lora La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigfox
Sigfox is a French global network operator founded in 2010 that builds wireless networks to connect low-power objects such as electricity meters and smartwatches, which need to be continuously on and emitting small amounts of data. Sigfox is based in Labège near Toulouse, France, and has over 375 employees. The firm also has offices in Madrid, San Francisco, Sydney and Paris. Technology Sigfox employs the differential binary phase-shift keying (DBPSK) and the Gaussian frequency shift keying (GFSK) that enables communication using the Short-range device band of 868 MHz in Europe, and the Industrial, Scientific and Medical radio band of 902 MHz in the US. It utilizes a wide-reaching signal that passes freely through solid objects, called "Ultra Narrowband" and requires little energy, being termed a "low-power wide-area network" (LPWAN). The network is based on one-hop star topology and requires a mobile operator to carry the generated traffic. The signal can also be us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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