IoT Connectivity Advancement: LTE Cat.1bis with SIM7672X

LTE Cat.1bis, as defined in 3GPP Release 13, marks a significant leap forward in communication standards by merging the strengths of traditional LTE Cat.1 and cellular LPWA Cat-M technologies. Positioned as a crucial link between existing infrastructure and the future of connectivity, its importance lies in its capacity to cater to the evolving requirements of IoT applications, offering a blend of efficiency, speed, and cost-effectiveness.

One of the key advantages of LTE Cat.1bis is its ability to maintain the high-speed capabilities of LTE Cat.1, boasting maximum download speeds of 10Mbps and upload speeds of 5Mbps. Additionally, by streamlining the size of the IoT module and utilizing just one antenna (*1), it not only reduces the overall dimensions and expenses of communication devices but also cuts down operational costs significantly. Its single-antenna design not only simplifies device architecture but also facilitates seamless migration from 3G networks, maximizing the utilization of existing assets. LTE Cat.1bis addresses a critical gap in the market, particularly in scenarios where LTE Cat-NB lacks the necessary bandwidth or LTE Cat.1 proves overly intricate or expensive.

In essence, LTE Cat.1bis represents a transformative shift in communication standards, offering a versatile solution that caters to the diverse demands of modern connectivity while laying the groundwork for future innovations in the IoT connectivity.

The SIM7672X module, equipped with the latest Qualcomm® 216 LTE IoT modem, exemplifies the advancements of LTE Cat.1bis. Recently validated through IIJ (Internet Initiative Japan), it can be extensively utilized on the NTT DoCoMo. The module supports the power-saving mode (PSM) feature of 3GPP Rel14, enabling power consumption to plummet to as low as 3uA in PSM mode. Furthermore, the SIM7672X series offers compatibility with multiple built-in network protocols and drivers for three main operating systems (Windows, Linux, and Android). Its software functions and AT commands align with those of the SIM800 series modules. Additionally, the SIM7672X series integrates various industrial standard interfaces, including UART, USB, I2C, and GPIO, enhancing its versatility and expansibility. This makes it an ideal choice for various IoT applications such as telematics, metering, surveillance devices, industrial routers, and remote diagnostics.

Moreover, the validation of SIM7672X in the NTT DoCoMo network underscores its reliability and compatibility, while the Qualcomm platform ensures seamless integration across global networks, solidifying SIMCom’s position as a trusted solution for diverse IoT applications.