<s>
Static	B-Protocol
Context	I-Protocol
Header	I-Protocol
Compression	I-Protocol
(	O
SCHC	O
)	O
is	O
a	O
standard	O
compression	O
and	O
fragmentation	O
mechanism	O
defined	O
in	O
the	O
at	O
the	O
IETF	O
.	O
</s>
<s>
It	O
offers	O
compression	O
and	O
fragmentation	O
of	O
IPv6/UDP/CoAP	O
packets	O
to	O
allow	O
their	O
transmission	O
over	O
the	O
Low-Power	B-General_Concept
Wide-Area	I-General_Concept
Networks	I-General_Concept
(	O
LPWAN	B-General_Concept
)	O
.	O
</s>
<s>
Low-Power	B-General_Concept
Wide-Area	I-General_Concept
Network	I-General_Concept
(	O
LPWAN	B-General_Concept
)	O
gathers	O
the	O
connectivity	O
technologies	O
tailored	O
for	O
Internet	B-Operating_System
of	I-Operating_System
Things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
,	O
allowing	O
for	O
:	O
</s>
<s>
Also	O
,	O
LPWAN	B-General_Concept
come	O
with	O
limitations	O
on	O
transmission	O
modalities	O
since	O
,	O
in	O
order	O
to	O
save	O
battery	O
,	O
devices	O
are	O
dormant	O
most	O
of	O
the	O
time	O
and	O
wake	O
up	O
only	O
episodically	O
to	O
transmit	O
and	O
receive	O
data	O
for	O
a	O
short	O
time	O
window	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
the	O
LPWAN	B-General_Concept
use	O
their	O
specific	O
protocols	O
,	O
each	O
adapted	O
to	O
their	O
own	O
specificities	O
.	O
</s>
<s>
Most	O
importantly	O
,	O
they	O
cannot	O
carry	O
IPv6	B-Protocol
,	O
which	O
was	O
designed	O
to	O
allocate	O
addresses	O
to	O
the	O
billions	O
of	O
IoT	B-Operating_System
connected	O
devices	O
.	O
</s>
<s>
RoHC	B-General_Concept
(	O
Robust	B-General_Concept
Header	I-General_Concept
Compression	I-General_Concept
)	O
in	O
2001	O
,	O
</s>
<s>
and	O
6LoWPAN	B-Protocol
(	O
IPv6	B-Protocol
over	O
Low-Power	O
Wireless	O
Personal	O
Area	O
Networks	O
)	O
in	O
2007	O
.	O
</s>
<s>
Yet	O
,	O
these	O
compression	O
schemes	O
cannot	O
fit	O
the	O
LPWAN	B-General_Concept
specificities	O
.	O
</s>
<s>
SCHC	O
associates	O
the	O
benefits	O
of	O
the	O
RoHC	B-General_Concept
context	O
,	O
which	O
provides	O
high	O
flexibility	O
in	O
the	O
fields	O
processing	O
,	O
and	O
of	O
the	O
6LoWPAN	B-Protocol
operations	O
to	O
avoid	O
transiting	O
fields	O
that	O
are	O
known	O
by	O
the	O
other	O
side	O
.	O
</s>
<s>
SCHC	O
takes	O
advantage	O
of	O
the	O
LPWAN	B-General_Concept
characteristics	O
(	O
no	O
routing	O
,	O
highly	O
predictable	O
traffic	O
format	O
and	O
content	O
of	O
messages	O
)	O
to	O
reduce	O
the	O
overhead	O
to	O
a	O
few	O
bytes	O
and	O
save	O
network	O
traffic	O
.	O
</s>
<s>
A	O
context	O
is	O
a	O
set	O
of	O
rules	O
that	O
describes	O
the	O
communication	O
context	O
,	O
meaning	O
the	O
header	B-General_Concept
fields	I-General_Concept
.	O
</s>
<s>
Thanks	O
to	O
this	O
mechanism	O
,	O
IPv6/UDP	O
headers	B-General_Concept
are	O
in	O
most	O
cases	O
reduced	O
to	O
a	O
small	O
identifier	O
.	O
</s>
<s>
The	O
Generic	O
Framework	O
for	O
Static	B-Protocol
Context	I-Protocol
Header	I-Protocol
Compression	I-Protocol
and	O
Fragmentation	O
,	O
has	O
been	O
published	O
in	O
April	O
2020	O
.	O
</s>
<s>
It	O
describes	O
the	O
generic	O
framework	O
that	O
can	O
be	O
used	O
on	O
all	O
LPWAN	B-General_Concept
technologies	O
,	O
and	O
more	O
generally	O
on	O
all	O
Internet	O
networks	O
.	O
</s>
<s>
Additional	O
work	O
is	O
dedicated	O
to	O
the	O
definition	O
of	O
standard	O
parameter	O
settings	O
and	O
modes	O
of	O
operation	O
to	O
optimize	O
SCHC	O
's	O
performance	O
according	O
to	O
the	O
implemented	O
protocols	O
and	O
the	O
underlying	O
LPWAN	B-General_Concept
technologies	O
:	O
</s>
<s>
On	O
May	O
17	O
,	O
2022	O
,	O
The	O
LoRa	O
Alliance	O
(	O
global	O
association	O
of	O
companies	O
backing	O
the	O
open	O
LoRaWAN®	O
standard	O
for	O
the	B-Operating_System
internet	I-Operating_System
of	I-Operating_System
things	I-Operating_System
low-power	B-General_Concept
wide-area	I-General_Concept
networks	I-General_Concept
)	O
announced	O
that	O
LoRaWAN	O
now	O
seamlessly	O
supports	O
Internet	B-Protocol
Protocol	I-Protocol
version	I-Protocol
6	I-Protocol
(	O
IPv6	B-Protocol
)	O
from	O
end-to-end	O
.	O
</s>
<s>
By	O
expanding	O
the	O
breadth	O
of	O
device-to-application	O
solutions	O
with	O
IPv6	B-Protocol
,	O
LoRaWAN	O
’s	O
addressable	O
IoT	B-Operating_System
market	O
is	O
also	O
broadened	O
to	O
include	O
internet	O
based	O
standards	O
required	O
in	O
smart	O
electricity	O
metering	O
and	O
new	O
applications	O
in	O
smart	O
buildings	O
,	O
industries	O
,	O
logistics	O
,	O
and	O
homes	O
.	O
</s>
<s>
The	O
Alliance	O
released	O
a	O
technical	O
specification	O
TS	O
10-1.0.0	O
to	O
explain	O
how	O
to	O
use	O
SCHC	O
as	O
an	O
adaptation	O
layer	O
to	O
enable	O
LoRaWAN	O
end-devices	O
to	O
use	O
IPv6-based	O
stacks	O
over	O
LoRaWAN	O
and	O
expands	O
its	O
certification	O
program	O
to	O
include	O
SCHC	O
over	O
LoRaWAN®	O
Enabling	O
IPv6	B-Protocol
Solutions	O
.	O
</s>
<s>
In	O
addition	O
,	O
SCHC	O
is	O
being	O
adopted	O
in	O
a	O
joint	O
standardization	O
effort	O
carried	O
out	O
by	O
the	O
DLMS	O
User	O
Association	O
and	O
the	O
LoRa	O
Alliance	O
for	O
the	O
smart	B-Device
metering	I-Device
industries	O
.	O
</s>
