Enhancing Smart Metering Solution with Cavli C16QS IoT Module and LTE Cat 1bis Technology

Secure Boot ensures that only digitally signed and verified firmware is loaded, preventing unauthorized modifications. It acts as a gatekeeper against tampering and malicious code, which is crucial for applications like smart energy metering where data accuracy and reliability are essential.

The C16QS uses the Qualcomm QCX216 chipset featuring a Cortex-M3 processor running at 204 MHz. It supports LTE Cat 1bis connectivity, allowing efficient low-bandwidth communications and optimal power usage in IoT deployments.

The C16QS module supports multiple power-saving features including deep sleep modes, eDRX (Extended Discontinuous Reception), and independent power supplies for LTE and GNSS. These features extend battery life in applications requiring long operational periods, like asset tracking and remote monitoring.

Implementing Secure Boot on the C16QS required streamlining firmware to free up the necessary RAM. With only 1MB of usable memory under typical conditions, Cavli’s team carefully removed or modified non-essential functions, creating an optimized custom firmware stack to meet the Secure Boot requirements.

The C16QS offers integrated eSIM capabilities, which, along with Cavli’s Hubble platform, enables global LTE connectivity. The module’s multi-band support and secure provisioning allow for seamless and secure IoT deployments across different regions without the need for physical SIM cards.