#Fibocom #New Zealand #Auckland #LTE Cat.1 #SpaceX DTC

Fibocom Modules Connect to SpaceX DTC Satellite Network

In a groundbreaking achievement for IoT connectivity, Fibocom's LE270-EU and LE271-GL LTE Cat.1 bis modules have successfully established a connection to SpaceX's Direct to Cell (DTC) satellite network during rigorous live-network testing in Auckland, New Zealand.

These tests showcased Fibocom’s innovative use of standard firmware, eliminating the need for satellite-specific hardware modifications. As a result, these modules registered on the DTC network, initiated IP data sessions, and transmitted data seamlessly over the satellite link in various environments including outdoor settings, vehicles, and indoor spaces.

Extending Connectivity Beyond Traditional Limits

The implications of this technology are particularly significant for sectors that rely on IoT devices situated in remote areas with limited cellular coverage, such as agriculture and environmental monitoring. The challenge for manufacturers has always been the integration of satellite capabilities without incurring extra hardware costs and increasing power consumption. By utilizing LTE Cat.1 bis technology, Fibocom strikes a balance between data performance, mobility, and cost-effectiveness for a myriad of IoT applications.

The SpaceX DTC network expands the potential of cellular technology by deploying LTE base station capabilities via low Earth orbit satellites, creating opportunities for devices that can utilize satellite connectivity alongside traditional cell towers. This dual connectivity can simplify the integration process for OEMs and potentially reduce the complexities involved in establishing devices that utilize satellite communication.

Real-World Testing Insights

Reliable data transfer across varied coverage conditions is vital for IoT applications. During the field tests, the modules successfully maintained connections under open-sky conditions, achieving approximately 2.2 Mbps downlink throughput with the LE270-EU and around 2.0 Mbps with the LE271-GL. Uplink throughput was consistent at about 0.3 Mbps, with network registrations taking between 1 to 30 seconds. Ping response rates stood impressively between 80% and 90%.

However, the testing in enclosed environments, such as hotel rooms, exhibited significant drops in performance, with downlink speeds decreasing to about 0.5 Mbps and ping response rates dipping to around 65%-70%. These observations underline the vital considerations manufacturers must account for and how satellite connectivity can augment traditional cellular solutions for reliable data transmission.

For applications like asset tracking and agricultural metrics, where little data is shared at frequent intervals, even reduced speeds can suffice, as long as the devices remain operational during periods when terrestrial networks are unavailable.

Key Design Features for IoT Applications

Size, power efficiency, and development cost remain central to IoT device design, particularly for battery-operated devices that function over long periods. Fibocom's modules are built compactly, measuring just 17.7 x 15.8 x 2.4 mm, while boasting a Power Saving Mode that utilizes a mere 2.5 µA of current. This efficiency, combined with OpenCPU development capabilities and various peripheral interfaces, provides ideal flexibility for developers.

Field tests revealed notable insights regarding power management under satellite usage, with the energy needed to upload data being about 1.5 to 1.8 times greater than that used in terrestrial conditions. This increase was attributed to longer transmission times and higher current requirements associated with sending data via satellite.

For battery-powered devices, effective strategies must be crafted. Techniques like adjusting reporting intervals, buffering data, and retrying transmissions when connectivity falters are essential for maintaining effective device performance.

Future Directions for Fibocom

The promising results from these field tests are just the beginning for Fibocom. The company is actively working on refining DTC firmware compatibility for its LE270 and LE271 modules, aiming for enhanced network registration efficiency and connection stability. As this technology evolves, it paves the way for manufacturers in satellite-enabled IoT applications ranging from asset tracking to remote monitoring, ultimately bridging gaps in connectivity for devices operating far from conventional cell towers.

Founded in 1999, Fibocom distinguishes itself as China's first listed wireless communication module company, driving innovative solutions across industries by combining wireless communication with artificial intelligence. Their integrated approach empowers a variety of applications, accelerating the shift towards intelligent connectivity and enriching the IoT landscape globally.