AT & T is pushing all LTE networks toward cellular Internet of Things (IoT) applications, although according to the previous statement, the operator may consider other lower-power, wider-area systems. Focus on LTE Back in February, Chris Penrose, AT & T's senior vice president for Internet of Things, told Mobile World Congress in February that "we prefer licensed bands, though there are many other options." "We made that decision because LTE is more conducive to standardization, and what AT & T needs is the norm," said Mobeen Khan, assistant vice president of Internet of Things solutions at AT & T Mobile and Business Solutions. AT & T has many reasons to make this decision, using LTE spectrum and technology, and using specialized IoT technologies, LTE is more secure and can be managed using existing infrastructures. "We're not interested in anything else, unless the client strongly urges us to do so, and we are focused on the progress of other technologies, but we focus on LTE only." Cat-M1 standard baked in 2018 commercial AT & T will use the new Cat-M1 (aka LTE-M) standard, which will be used for smart meters and wearables. Cat-M1 will provide 1 Mbit / s network speed, and better than traditional battery life, using a typical smartphone 4G chipset. Currently, the operator has approved the demonstration of the first module and is expected to be trialled in the fourth quarter. For lower power applications, AT & T will use cat-M2 (also known as narrowband-IOT), a technology used in areas such as smoke detectors and network monitoring modules. Cat-M2 is still under development and is expected to be connected at speeds in excess of kilobits per second, and to improve battery life. AT & T expects to test Cat-M2 devices in 2017 and commercial in 2018. Of course, this does not mean that AT & T will not support other standard networks, WiFi, Bluetooth, etc. will be part of it. Jiangsu Aoli New Materials Co.,Ltd , https://www.jsaolimaterials.com