Narrowband IoT
Narrowband IoT (NB-IoT) is a Low Power Wide Area Network (LPWAN) radio technology standard developed by 3GPP to enable a wide range of cellular devices and services.[1][2] The specification was frozen in 3GPP Release 13 (LTE Advanced Pro), in June 2016.[3] Other 3GPP IoT technologies include eMTC (enhanced Machine-Type Communication) and EC-GSM-IoT.[4]
NB-IoT focuses specifically on indoor coverage, low cost, long battery life, and high connection density. NB-IoT uses a subset of the LTE standard, but limits the bandwidth to a single narrow-band of 200kHz. It uses OFDM modulation for downlink communication and SC-FDMA for uplink communications. [5][6][7][8][9]
3GPP Narrowband Cellular Standards
| LTE Cat 1 | LTE Cat 0 | LTE Cat M1
(eMTC) |
LTE Cat NB1
(NB-IoT) |
EC-GSM-IoT | |
|---|---|---|---|---|---|
| 3GPP Release | Release 8 | Release 12 | Release 13 | Release 13 | Release 13 |
| Downlink Peak Rate | 10 Mbit/s | 1 Mbit/s | 1 Mbit/s | 250 kbit/s | 474 kbit/s (EDGE)
2 Mbit/s (EGPRS2B) |
| Uplink Peak Rate | 5 Mbit/s | 1 Mbit/s | 1 Mbit/s | 250 kbit/s (multi-tone)
20 kbit/s (single-tone) |
474 kbit/s (EDGE)
2 Mbit/s (EGPRS2B) |
| Latency | 50–100ms | not deployed | 10ms–15ms | 1.6s–10s | 700ms–2s |
| Number of Antennas | 2 | 1 | 1 | 1 | 1–2 |
| Duplex Mode | Full Duplex | Full or Half Duplex | Full or Half Duplex | Half Duplex | Half Duplex |
| Device Receive Bandwidth | 1.4 – 20 MHz | 1.4 – 20 MHz | 1.4 MHz | 180 kHz | 200 kHz |
| Receiver Chains | 2 (MIMO) | 1 (SISO) | 1 (SISO) | 1 (SISO) | 1–2 |
| Device Transmit Power | 23 dBm | 23 dBm | 20 / 23 dBm | 20 / 23 dBm | 23 / 33 dBm |
See also
References
- ^ "NarrowBand – Internet of Things (NB-IoT)".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ Grant, Svetlana (September 1, 2016). "3GPP Low Power Wide Area Technologies - GSMA White Paper" (PDF). gsma.com. GSMA. p. 49. Retrieved October 17, 2016.
- ^ "Standardization of NB-IOT completed". 3gpp.org. 3GPP. June 22, 2016. p. 1. Retrieved August 19, 2016.
- ^ "Extended Coverage - GSM - Internet of Things (EC-GSM-IoT)". gsma.com. GSMA. May 11, 2016. p. 1. Retrieved October 17, 2016.
- ^ Lawson, Stephen (September 21, 2015). "NarrowBand IoT standard for machines moves forward". computerworld.com. Computerworld / IDG. p. 1. Retrieved September 24, 2015.
- ^ Jones, Dan (September 11, 2015). "Ericsson, Intel, Nokia Back New Narrowband LTE IoT Spec". lightreading.com. LightReading. p. 1. Retrieved September 24, 2015.
- ^ Scales, Ian (September 18, 2015). "3GPP agrees 'harmonized' proposal for narrowband IoT radio technology". telecomtv.com. TelecomTV. p. 1. Retrieved September 24, 2015.
- ^ Lawson, Stephen (September 22, 2015). "LTE standard for Internet of Things machines gets the green light". PCWorld / IDG. p. 1. Retrieved September 24, 2015 – via pcworld.com.
- ^ "Preliminary specification". 3GPP.
- ^ Luo, Chao (March 20, 2017). "3GGP TS45.001: GSM/EDGE Physical layer on the radio path" (ZIPped DOC). 3gpp.org. 14.1.0. 3GPP TSG RAN WG6. p. 58. Retrieved May 27, 2017.