SCHC 2018-12-03T12:50:10+00:00

The innovation behind Acklio’s software:

IPv6 over IoT networks

Due to the drastic bandwidth constraints of LPWAN networks, the emerging IoT networks do not follow the Internet model based on IP protocols. Indeed, the IP stack was until recently considered too greedy to be transported by these constrained networks. Well, that was before 2016 and Acklio’s innovation!

Our co-founders are at the origin of a technology for compressing and fragmenting messages exchanged on LPWAN networks to ensure full compatibility of these messages with Internet protocols. It allows the interoperability of the devices to the different LPWAN networks, and more broadly to the applications deployed on the Internet. This technology, SCHC, is about to become an open IETF standard.

SCHC

Static Context Header Compression

SCHC (pronounced “Chic”) is a compression and fragmentation framework tailored for LPWAN. Static context header compression (SCHC) prevents synchronization between elements communicating on the network. Synchronization is actually the operation that consumes the most bandwidth.

In LPWAN networks, the nature of data flows is highly predictable. So, rather than saturating the bandwidth with this information, we found it smart to store these communication contexts both in the device and in the network management platform. This is how SCHC makes it possible to reduce the amount of data transmitted over radio connectivity. This, in the end, makes it possible to use IP.

When the data is still too heavy to be transported under the given network conditions, SCHC incorporates a fragmentation. This splits the messages and manages their transmission in the network.

SCHC is a compression mechanism to reduce CoAP/IPv6 headers to just a few bytes, which can then be transported over any LPWAN networks. You can imagine SCHC as an adaptation layer between IPv6 and the LPWAN connectivity.

How does SCHC improve your IoT solutions?

Use of the IP/TCP protocol stack on constrained long-range networks.

Rapid development of services independent from the underlying radio technology.

Seamless integration with the customers’ operation network and application architectures.

Transforms an LPWAN device into a native IP device, easily addressable from business applications.

Dynamic adaptation of message size to radio transmission conditions.

Discover Acklio’s software implementing SCHC

SCHC: soon an IETF standard

The SCHC technology is currently in the final stages to be validated as a IETF standard.

The Internet Engineering Task Force (IETF) is the international body that defines the standards that guarantee the interoperability and evolution of Internet networks since 1986. The IETF Task Force is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet. It is behind the success of the Internet, by building a scalable system capable of connecting billions of devices and remaining operational after 30+ years.

Alexander Pelov, CEO of Acklio, is co-chairing the IETF working group dedicated to the IPv6 standardization over LPWAN networks with Pascal Thubert, Principal Engineer at Cisco.

Read the LPWAN working group’s roadmap

Read the standard drafts (RFCs):

LPWAN SCHC over Sigfox
LPWAN SCHC fragmentation for IPv6
LPWAN SCHC over LoRaWAN
CoAP Time Scale Option

Recording of last LPWAN working group meeting at IETF

Discover the SCHC repositories:

OpenSCHC.net
IETF 103 Hackathon LPWAN

Discover Acklio’s demo implementations of SCHC

IPv6 Operation over LoRaWAN

IPv6 messaging between a SCADA controller and a remote utility grid storage unit.

➞ Demo with Cisco

Radio-technology agnostic apps

Demonstrates LPWAN applications to transparently run over different IoT radio technologies.

➞ Demo with Sigfox

Seamless IoT integration with IP

Supervision link for electric vehicle charging: demonstrate IP-over-LoRaWAN seamless communication.

➞ Demo with Objenious and EDF

…and meet us at technical events

Members meeting

San Diego, USA

Feb 04-07, 2019

IETF 104

Prague, Czech Republic

Mar 23-29, 2019

IETF 105

Montreal, Canada

July 20-26, 2019

IETF 106

Singapore

Nov 16-22, 2019

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