KDDI CORPORATION on January 29 began offering its corporate clients KYW01, an IoT-optimized ultra-miniaturized LTE-M communication module that complies with LTE-M (Cat.M1) 3GPP standard specifications.
Together with the KYW01 module launch, KDDI also began providing Japan's first  domestic cellular LPWA telecommunication service, KDDI IoT Telecommunication Service LPWA (LTE-M) , as well as KDDI IoT Cloud Device Management, a tool for remotely managing IoT devices and communication modules.
LTE-M (Cat.M1) is an LTE standard specification that uses mobile phone networks and is based on 3GPP Release 13 for particularly low power consumption and broad coverage.
The KYW01 module is compatible with extended Discontinuous Reception (eDRX) and Power Saving Mode (PSM) for low power consumption, as well as Coverage Enhancement technology, which enables use throughout broader coverage areas. These capabilities enable it to run for more than 10 years on the power provided by two AA-size batteries . In addition to LTE telecommunications area coverage, it can also provide connectivity in locations such as mountainous areas and the recesses of building interiors.
In addition, the KYW01 module features unique ceramic substrate technology and a simplified, extremely miniaturized design about the size of a ¥1 or 1¢ coin. Highly compact and capable of operating for extended periods on battery power, it can be expected to find useful IoT applications in diverse fields including gas, water and other smart-meter devices, as well as logistics and wearable technologies.
The use of mobile phone networks can be expected to provide stable telecommunications connectivity that obviates the need for gateway devices as long as the customer has a compatible terminal device.
KDDI will continue to provide total solutions encompassing the full range from IoT telecomms to data utilization services. In addition to facilitating our customers' business operations, our goal is to help achieve a society in which telecommunications among many and varied partners is safe and worry-free.
Please visit the reference page for details:
|Product name (model)||KYW01|
|Size||approx. 20 x 20 x 3.7 mm|
|Transmission speed||Download: Up to 1Mbps 
Upload: Up to 1Mbps 
|Warranted operating temperature||-30°C to +70°C|
|Power supply voltage||3.3V to 4.2V|
|Consumption current||During PSM sleep: 23µA 
During eDRX sleep: 0.9mA 
During ordinary standby: 1.7mA 
During operation at maximum transmission output: 230mA 
|Antenna connector||LGA Pin-internal|
|External interface||155 pad LGA|
|Compatibility||Data communication, position fixing function (GPS/GLONASS), PSM, eDRX, Coverage Enhancement, KDDI IoT Cloud Device Management, SIM security function, etc.|
Customers can select the most affordable plan from among KDDI IoT Telecommunication Service LPWA (LTE-M)  specialized payment plans LPWA10, LPWA100 and LPWA500. In some cases, fees can be as low as ¥40 per line per month .
January 29, 2018
Please contact KDDI Sales or the Module Support Center.
Module Support Center