<s>
Wize	B-General_Concept
technology	I-General_Concept
is	O
a	O
low-power	B-General_Concept
wide-area	I-General_Concept
network	I-General_Concept
technology	I-General_Concept
using	O
the	O
169MHz	O
radio	O
frequency	O
.	O
</s>
<s>
Derived	O
from	O
the	O
European	O
Standard	O
Wireless	B-Architecture
M-Bus	I-Architecture
,	O
it	O
has	O
mainly	O
been	O
used	O
by	O
utility	O
companies	O
for	O
smart	B-Device
metering	I-Device
infrastructures	I-Device
(	O
AMI	O
)	O
for	O
gas	O
,	O
water	O
and	O
electricity	O
but	O
is	O
equally	O
open	O
to	O
other	O
applications	O
in	O
industry	O
and	O
'	O
Smart	O
City	O
 '	O
spaces	O
.	O
</s>
<s>
The	O
169MHz	O
radio	O
frequency	O
band	O
(	O
169.4	O
-	O
169.8125MHz	O
more	O
precisely	O
)	O
,	O
formerly	O
known	O
as	O
ERMES	O
band	O
,	O
was	O
historically	O
used	O
by	O
pager	B-Application
type	O
services	O
.	O
</s>
<s>
EN13757-4	O
defines	O
the	O
wireless	O
low	O
level	O
interface	O
of	O
this	O
standard	O
,	O
including	O
physical	B-Application
and	O
MAC	B-Protocol
layers	I-Protocol
.	O
</s>
<s>
The	O
EN13757-4	O
mode	O
N	O
is	O
the	O
physical	B-Application
layer	I-Application
of	O
Wize	B-General_Concept
technology	I-General_Concept
.	O
</s>
<s>
Per	O
unit	O
,	O
the	O
in	O
situ	O
coverage	O
of	O
Wize	B-General_Concept
technology	I-General_Concept
varies	O
from	O
50km	O
outdoors	O
,	O
10km	O
indoors	O
and	O
2.5km	O
deep	O
indoors	O
.	O
</s>
<s>
Small	O
lithium	O
batteries	O
cells	O
(	O
AA	B-Algorithm
,	O
A	O
or	O
C	B-Algorithm
)	O
are	O
enough	O
to	O
power	O
the	O
devices	O
for	O
15	O
–	O
20	O
years	O
for	O
remote	O
meter	O
reading	O
.	O
</s>
<s>
The	O
communication	O
between	O
devices	O
and	O
gateways	O
(	O
link	O
layer	O
)	O
is	O
end-to-end	O
encrypted	O
using	O
hash	B-Algorithm
keys	I-Algorithm
in	O
AES-128	B-Algorithm
to	O
secure	O
the	O
data	O
.	O
</s>
<s>
So	O
far	O
,	O
more	O
than	O
7	O
million	O
smart	B-Device
meters	I-Device
are	O
operated	O
with	O
the	O
Wize	O
protocol	O
.	O
</s>
<s>
In	O
France	O
,	O
GRDF	O
took	O
the	O
decision	O
in	O
2012	O
to	O
develop	O
gas	O
meter	O
solutions	O
called	O
Gazpar	O
using	O
Wize	B-General_Concept
technology	I-General_Concept
.	O
</s>
<s>
The	O
deployment	O
of	O
11	O
million	O
smart	B-Device
meters	I-Device
and	O
ten	O
thousand	O
gateways	O
started	O
in	O
2016	O
and	O
is	O
expected	O
to	O
be	O
completed	O
by	O
2022	O
.	O
</s>
<s>
GRDF	O
intends	O
to	O
use	O
its	O
base	O
infrastructure	O
built	O
on	O
Wize	B-General_Concept
technology	I-General_Concept
for	O
automatic	O
and	O
daily	O
reading	O
of	O
industrial	O
meters	O
.	O
</s>
<s>
In	O
2018	O
,	O
the	O
French	O
local	O
utility	O
Régaz	O
Bordeaux	O
started	O
a	O
smart	B-Device
metering	I-Device
project	O
with	O
250,000	O
gas	O
meters	O
.	O
</s>
<s>
Smart	O
water	O
meters	O
have	O
also	O
been	O
deployed	O
with	O
Wize	B-General_Concept
technology	I-General_Concept
by	O
other	O
European	O
utilities	O
such	O
as	O
Aigües	O
de	O
Barcelona	O
in	O
Spain	O
and	O
Ovak	O
in	O
the	O
Czech	O
Republic	O
.	O
</s>
<s>
However	O
,	O
only	O
members	O
of	O
the	O
Alliance	O
have	O
access	O
to	O
the	O
technical	O
specifications	O
of	O
Wize	B-General_Concept
technology	I-General_Concept
using	O
the	O
frequency	O
169MHz	O
.	O
</s>
