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Cellular

Cellular communication typically refers to a set of wireless protocols that support long range connectivity via a large network of base stations, each of which services a geographic "cell". In the context of the Internet of Things (IoT), the most common cellular protocols include low-power wide-area network (LPWAN) options, such as LTE-M and NB-IoT, or higher throughput options, such as LTE Cat 1bis or 5G Reduced Capability (RedCap).

Cellular connectivity is ideal for devices that are not stationary, as devices can move seamlessly from one base station to another while in motion, maintaining a consistent connection to the Golioth platform. IoT devices that leverage cellular connectivity typically rely on an onboard cellular chipset, or a more complete cellular module. In order to authenticate to cellular carriers, a subscriber identity module (SIM) is also required. Historically, the SIM form factor has been a plastic smart card, but many devices now leverage an embedded SIM (eSIM), which takes the form of eUICC software running on a surface-mount integrated circuit with an MFF2 footprint. eSIMs offer a number of advantages over traditional SIM cards, including the ability to manage profiles remotely via Remote SIM Provisioning (RSP).

Managed Connectivity​

While customers are able to connect to Golioth over cellular using any carrier of their choice, Golioth Connectivity offers managed cellular connectivity, allowing customers to offload the complexity of negotiating data rates with carriers and obtaining SIMs or eSIMs for their devices. Managed cellular connectivity with Golioth Connectivity provides a single billing interface, advanced network insights and management, and global coverage via carrier roaming.

Managed cellular connectivity is currently available for select Golioth customers. Please reach out to [email protected] for more information.

Certifications​

Mobile network operators frequently require certifications for devices in order ensure reliable and efficient communication for all parties on a network. Devices that leverage Golioth Connectivity's managed cellular connectivity must have the following certifications. Additionally, it is recommended that customers ensure that their devices comply with GSMA IoT Device Connection Efficiency Guidelines.

PTCRB​

PTCRB certification is a common requirement for cellular devices. Golioth Connectivity customers can dramatically simplify the PTCRB certification process by incorporating a PTCRB-certified module in their hardware design. Devices that include a PTCRB-certified module are referred to as “Integrated Devices”, and the only additional testing required is typically limited to interfaces such as the SIM, power, and antenna.

A database a PTCRB-certified modules can be found here.

Regional RF / EMI Certifications​

While not specifically tied to cellular connectivity, most regions in which cellular devices operate require some form of radio frequency (RF) and electromagnetic interference (EMI) testing and certification. For example, electronic devices in the United States are required to obtain FCC certification. Customers leveraging Golioth Connectivity's managed cellular connectivity must be compliant with all local laws and regulations.