Cellular IoT Efficiency with SCHC

Traditional Internet protocol stacks (TCP-based) include regular keep-alives that fit to "always on" network models. However, being very greedy in terms of number and volume of messages exchanged, they quickly wipe out the benefits of technologies dedicated to IoT like NB-IoT and LTE-M.
Get best-in class efficient cellular IoT solutions with SCHC. 

Optimize NB-IoT and LTE-M efficiency with SCHC

Acklio SCHC brings extreme compression and enables efficient communication modes that drastically reduce the amount of data exchanged.
The result: energy-efficient devices and high-capacity networks.
Improves battery lifespan

From a device perspective, compressing a byte with Acklio SCHC requires 500 times less energy than transmitting it over the network.

Acklio extends the life of objects by 20 to 80% depending on use cases.

Boosts network capacity

By reducing the volume of data exchanged over the network, Acklio SCHC helps reduce the load of each device on the network.

This multiplies the number of devices that can be served by the same infrastructure.

Cuts connectivity costs

By combining lower data consumption on the user side and higher network capacity on the operator side, SCHC not only lowers the energy impact of a deployment. It cuts the cost of connectivity per device.

“Once deployed at large scale, SCHC will unlock a technical barrier that has threatened to stall Internet of Things (IoT) traction by directly addressing the inherent limited throughput and capacity of NB-IoT and lack of Internet Protocol (IP) interoperability of some LPWANs.”
Lorenzo Amicucci
Business Development Manager

Performance demonstrated


Over 60% gain on DTLS support over NB-IoT (IP & non-IP)

With Nordic Semiconductor and Deutsche Telekom live NB-IoT network by IoTCreators, achieved over 60%reduction in traffic when using SCHC. Scaling up to a commercial network of 1M devices like smart meters, the traffic reduction equals more than 365 GB of data every year.

Learn more

60% gain on secure LwM2M services over LTE-M

SCHC improves energy efficiency and network load by reducing the volume of data exchanged. SCHC makes end-to-end security support efficient!

➡️  20% efficiency gain on LwM2M/CoAP while enabling IP Convergence

➡️  60% gain on LwM2M/OSCORE/CoAP/UDP/IP. 

Read IEEE research paper (Dec 2021)

Best in class TCP or UDP/IP with SCHC

SCHC enables an efficient TCP/IP that fits the NB-IoT operations. Indeed, TCP is designed for "always on" connectivity models. Therefore, doing TCP over NB-IoT is overly greedy in terms of data exchange (keep alive), and therefore not feasible at scale. Alternatively, Acklio SCHC allows the most optimized version of UDP/IP,  as it makes the UDP link more reliable with services equivalent to TCP.

TCP proxy with SCHC
UDP/IP with Acklio SCHC
Port Number
Checksum - error detection
TCP Compliance
Reliability - retransmit lost packets
Congestion control
Ordering Packets
Payload compression
(in roadmap)
Efficiency for IoT connectivity

SCHC, the new IETF standard for LPWAN (RFC 8724, 9011, 8824)

The compression technology used to transport the TCP/IP stack over LPWAN networks is the new IETF standard: Static Context Header Compression, SCHC (pronounced “chic”).
Our team pioneered the technology and is still strongly committed to the standardization process. The Acklio software suite is the first to integrate this technology for industrial deployments.
Learn more about SCHC

Discuss your IoT project with our experts

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