EC-GSM-IoT Vs NB-IoT Vs LTE Cat-M1 | difference between EC-GSM-IoT NB-IoT LTE Cat-M1
This page compares EC-GSM-IoT Vs NB-IoT Vs LTE Cat-M1 and describes difference between EC-GSM-IoT, NB-IoT and LTE Cat-M1.
All these three 3GPP standards are used for IoT (Internet of Things).
EC-GSM-IoT: Enhancements to existing GSM/EGPRS to support extended coverage, long life, low device cost, variable rates, higher number of subscribers, enhanced security etc. Refer EC-GSM IoT basics>>
NB-IoT: It stands for Narrow band-IoT. It is specified in LTE Release-13. It is successor to LTE Cat-M technology. It fulfills requirements of Low Power Wide Area Network. It offers long battery life, lower latency, better coverage compare to LTE-M technology. Refer NB IoT tutotial >>
LTE Cat-M1: It is LPWA network air interface which allows to connect with IoT and M2M devices at medium data rates. It supports about 375 Kbps data rates in downlink and uplink with half duplex mode. It offers long battery life with extended coverage. It is also known as eMTC (enhanced machine-type communication). It is part of 3GPP Release 13.
|Deployment Band||In Band GSM||In Band & Guard Band LTE, Standalone||In Band LTE|
|Coverage||164 dB (33 dBm power class), 154 dB (23 dBm power class)||164 dB for standalone, FFS others||155.7 dB|
|Downlink||TDMA/FDMA, GMSK & 8PSK (optional), 1 Rx||OFDMA, 15 KHz tone spacing, 1 Rx||OFDMA, 15 KHz tone spacing, turbo code, 16QAM, 1 Rx|
|Uplink||TDMA/FDMA, GMSK & 8PSK (optional)|| Single tone, 15 KHz & 3.75 KHz spacing
SC-FDMA, 15 KHz tone spacing, turbo code
|SC-FDMA, 15 KHz tone spacing turbo code, 16 QAM|
|Bandwidth||200 KHz per channel||180 KHz||1.08 MHz|
|Peak Rate (DL/UL)||For DL/UL using four time slots- 70 Kbps using GMSK and 240 Kbps using 8PSK|| DL: about 50 Kbps
UL: about 50 kbps for multi-tone, about 20 Kbps for single tone
|1 Mbps for DL/UL|
|Duplexing||HD, FDD||HD (type B), FDD||FD & HD (type B), FDD and TDD|
|Power Saving||PSM, ext. I-DRX||PSM, ext. I-DRX, C-DRX||PSM, ext. I-DRX, C-DRX|
|Power Class||33 dBm, 23 dBm||23 dBm, others TBD||23 dBm, 20 dBm|
NB-IoT Related Stuff
EC-GSM IoT, NB-IoT and LTE RELATED LINKS
This tutorial section on LTE basics covers following sub topics:
What is EC-GSM IoT NB-IoT tutorial LTE tutorial LTE features LTE terminologies Frame TDD FDD Channel types PHY stack throughput CA cell search network entry Timers PSS vs SSS Security LTE Bands EARFCN Hotspot router What is VoLTE VoLTE originating call flow VoLTE UE attach and registration procedure