Static Context Header Compression (SCHC) is a compression and fragmentation mechanism that enables the use of internet protocols over low power, wide area networks (LPWAN).
Resulting from the common work carried out by Acklio and IMT Atlantique, SCHC opens new horizons for the Internet of Things (IoT) and accelerates LoRaWAN® adoption. Historically, most Internet standards were too complex for LPWAN environments. IoT technologies and use cases were not interoperable and it was challenging to integrate them with existing architectures.
This new framework takes advantage of the characteristics of LPWAN technology (i.e. there is no routing, and the traffic format is known) and reduces the impact of protocol headers to a few bits. A static context is shared and stored in both the device and the core network. Since the content of packets is highly predictable, the context rules can be provisioned beforehand, thus reducing the need for additional network traffic.
No Security or Interoperability Compromises
Security controls exist for network communications at each layer of the IETF IoT IP stack. Dedicated IoT standards, such as DTLS or OSCORE, ensure end-to-end encryption, even for constrained LoRaWAN networks and LoRa®-based devices.
Additionally, SCHC delivers gains that are both efficient and sustainable, all while meeting the memory and processing demands of IoT devices.
By enabling protocols such as CoAP, which is designed for energy-constrained sensor systems, Acklio future-proofs data and supports semantic interoperability. By translating proprietary data into meaningful JSON content, Acklio further enables the direct use and integration of data without costly integration measures.
Building End-to-End Services.
Having demonstrated the capabilities of SCHC to market leaders, Acklio is proud to announce its first market-ready implementation. Below are three example uses cases that the Acklio Software Suite addresses.
- Universal applications and protocol adaptation layer.
With SCHC, you can adapt and port established applications and protocols such as DLMS for smart-metering, or LwM2M for device management over LoRaWAN.
- Multi-modal network aggregation.
SCHC enables you to operate your multi-connectivity network through a unique interface. Additionally, you can broaden your current architecture and densify your network at a lower cost with one or more LPWAN connections. Your devices can be addressed from any application as native IP devices.
- Network equipment management and dual connectivity.
Another benefit of SCHC is that you can set up and manage a secondary administration link for remote equipment. SCHC implementation by Acklio allows secured SSH communication over LPWAN with remote network routers and switches to ensure business continuity.
SCHC enables interoperable, secured and rapid integration of your IoT deployment infrastructure. To combine established protocols and architecture with an LPWAN environment, SCHC removes the risks of vendor lock-in. It ensures future-proof investments to harness the full power of LoRa and other LPWAN technologies.
Acklio is a French startup created in 2016. The co-founders are driving a technology that ensures interoperability and interconnection between any type of network and radio technologies. This innovation, called SCHC, is being standardized by the IETF. Deploy it today with Acklio’s software, the first market-ready implementation.
LoRa® is a registered trademark or service mark of Semtech Corporation or its affiliates.