 |
This article may be too technical for most readers to understand. Please help improve ittomake it understandable to non-experts, without removing the technical details. (February 2019) (Learn how and when to remove this message)
|
LTE-MorLTE-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.[1][2] 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.[3]
Competing 3GPP IoT technologies include NB-IoT and EC-GSM-IoT.[4] 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.[5] 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.[6] In March 2019, the Global Mobile Suppliers Association reported that over 100 operators had deployed/launched either NB-IoT or LTE-M networks.[7]
[8][9] |
LTE Cat 1 | LTE Cat 1 bis | LTE-M | NB-IoT | EC-GSM-IoT | ||||
|---|---|---|---|---|---|---|---|---|---|
| LC-LTE/MTCe | eMTC | ||||||||
| LTE Cat 0 | LTE Cat M1 | LTE Cat M2 | non-BL | LTE Cat NB1 | LTE Cat NB2 | ||||
| 3GPP release | Release 8 | Release 13 | Release 12 | Release 13 | Release 14 | Release 14 | Release 13 | Release 14 | Release 13 |
| Downlink peak rate | 10 Mbit/s | 10 Mbit/s | 1 Mbit/s | 1 Mbit/s | ~4 Mbit/s | ~4 Mbit/s | 26 kbit/s | 127 kbit/s | 474 kbit/s (EDGE)
2 Mbit/s (EGPRS2B) |
| Uplink peak rate | 5 Mbit/s | 5 Mbit/s | 1 Mbit/s | 1 Mbit/s | ~7 Mbit/s | ~7 Mbit/s | 66 kbit/s (multi-tone)
16.9 kbit/s (single-tone) |
159 kbit/s | 474 kbit/s (EDGE)
2 Mbit/s (EGPRS2B) |
| Latency | 50–100 ms | not deployed | 10–15 ms | 1.6–10 s | 700 ms – 2 s | ||||
| Number of antennas | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1–2 |
| Duplex mode | Full duplex | Full or half duplex | Full or half duplex | Full or half duplex | Full or half duplex | Half duplex | Half duplex | Half duplex | |
| Device receive bandwidth | 1.4–20 MHz | 1.4–20 MHz | 1.4 MHz | 5 MHz | 5 MHz | 180 kHz | 180 kHz | 200 kHz | |
| Receiver chains | 2 (MIMO) | 1 (SISO) | 1 (SISO) | 1 (SISO) | 1 (SISO) | 1 (SISO) | 1 (SISO) | 1–2 | |
| Device transmit power | 23dBm | 23dBm | 23 dBm | 20 / 23 dBm | 20 / 23 dBm | 20 / 23 dBm | 20 / 23 dBm | 14 / 20 / 23 dBm | 23 / 33 dBm |
As of March 2019 the Global Mobile Suppliers Association had identified:[7]
As of February 2022, GSMA had listed LTE-M as being launched on 60 commercial networks.[10]
|
Cellular network standards
| |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0G radio telephones (1946) |
| ||||||||
| 1G (1979) |
| ||||||||
| 2G (1991) |
| ||||||||
| 2G transitional (2.5G, 2.75G, 2.9G) |
| ||||||||
| 3G (1998) IMT-2000 (2001) |
| ||||||||
| 3G transitional (3.5G, 3.75G, 3.9G) |
| ||||||||
| 4G (2009) IMT Advanced (2013) |
| ||||||||
| 5G (2018) IMT-2020 (2021) |
| ||||||||
| Related articles |
| ||||||||
|
| |||||||
|---|---|---|---|---|---|---|---|
| Mobile networks, protocols |
| ||||||
| General operation |
| ||||||
| Mobile devices |
| ||||||
| Mobile specific software |
| ||||||
| Culture |
| ||||||
| Environment and health |
| ||||||
| Law |
| ||||||
| |||||||
 | This computer networking article is a stub. You can help Wikipedia by expanding it. |
