LTE-M with Cat M1 is targeting use cases that need a low complexity and low consumption performance while providing deep indoor coverage, which led to the use of the Narrow Band Channel (1.08 MHz), enabling very low data rates to meet the requirements of low power IoT applications 🤓 LTE-M in the half duplex mode that is currently available can reach around 300 kbps in downlink and 380 kbps in uplink 😎 On the field, average data rates of 100 to 150 kbps is reached in both directions with lower figures of a few Kbps when extended coverage features are in use 🙌 LTE M’s latency will only reach about 100 to 150ms during normal coverage. It will decrease to a few seconds when using Extended Coverage Mode. 
Extended Coverage is EC. EC-GSM is the IoT-optimized GSM network, the wireless protocol 80 percent of the world’s smartphones use. As the name suggests, EC-GSM can be deployed in existing GSM networks—a huge advantage in terms of practicality and modularity, since a simple piece of software enables EC-GSM connectivity within 2G, 3G, and 4G networks. EC-GSM is also able to connect within existing GSM networks. Specific Applications In non-Western areas like Malaysia and African and Middle Eastern countries where 2G is still a preferred standard, 2G has been a very popular choice. Ericsson (Intel), Orange, and Intel were said to have conducted live trials for ECGSM this year. EC-GSM, however, isn’t generating as much buzz as Cat-M or NB-IoT. Arden Hay updated this article on October 22, 2020. 
Leland Dzier ericsson.com These insights can be further aided by the NB-IoT. Utility metres and sensors are the most common applications of NBIoT. Cat-M1 has many common uses, such as connected vehicles and wearable devices. Given that Cat-M1 is the more powerful than NB-IoT, that doesn’t mean it’s better, it just means it’s suitable for different applications. You might have an oil storage tank located in your basement. Building that needs A sensor that checks its level periodically will work with NBIoT. The elevator in the basement will however use Cat-M1. Operators also benefit from NBIoT’s guard-band deployment, which allows for greater deployment flexibility. If the operator’s available frequency assets allow, NB-IoT can also deployed as stand-alone access. This was a great tip from Meg Silver of Seongnam in South Korea. 
A wireless future that is secure, stable and resilient to connectivity is what we believe in. Many potential “connected things” are located in remote or hard to reach areas, at long distances from the next cellular base station or in shielded areas, such as deep within buildings or underground structures. Even when there’s coverage, the signal strength is poor, and the transmitter must operate at high power to drain the battery. Applications that transmit very little data aren’t optimized for cellular networks. Further, the existing cellular standards don’t support power saving capabilities, which makes these standards unsuitable for inexpensive devices that require battery lives of several years. This was last updated by Kelina Priest (Zarqa, Jordan), 81 days ago.