Clearwire 2008 Annual Report Download - page 27

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O
ur mo
bil
eW
i
MAX networ
k
cons
i
sts o
f
many o
f
t
h
e same pr
i
mary e
l
ements as Expe
di
ence, an
di
nc
l
u
d
es
b
ase
s
tation transceivers and subscriber devices. For subscribers, we currentl
y
offer CPE and USB modems. Eventuall
y
,
w
e anticipate manufacturers to sell a number of handheld communications and consumer electronic devices with
e
m
b
e
dd
e
d
W
i
MAX c
hi
psets t
h
at w
ill b
e ena
bl
e
d
to commun
i
cate us
i
ng our mo
bil
eW
i
MAX networ
k
, suc
h
as
n
otebook computers, netbooks, MIDs, PDAs,
g
amin
g
consoles and MP3 pla
y
ers. Currentl
y
, there are more than 40
s
u
b
scr
ib
er
d
ev
i
ces t
h
at are mo
bil
eW
i
MAX cert
ifi
e
d
a
l
rea
d
y, an
d
many more current
l
y
i
nt
h
emo
bil
eW
i
MA
X
c
ert
ifi
cat
i
on process. We expect near
l
y 100 mo
bil
eW
i
MAX capa
bl
e
d
ev
i
ces to
b
eava
il
a
bl
e
b
y year en
d
.
Bac
kh
au
lN
etwor
k
O
ur backhaul network is responsible for transmittin
g
data and voice traffic between our tower sites and the
n
etwor
k
core. Operators
h
ave prev
i
ous
l
ypr
i
mar
il
yre
li
e
d
upon w
i
re
li
ne
b
ac
kh
au
l
networ
k
sto
h
an
dl
et
hi
s tra
ffi
c.
However,
i
n most o
f
our mar
k
ets, w
h
et
h
er t
h
e networ
k
sut
ili
ze
p
re-W
i
MAX, mo
bil
eW
i
MAX or some ot
h
er
t
echnolo
gy
, we intend to rel
y
almost exclusivel
y
upon microwave backhaul. Our microwave backhaul network
utilizes our spectrum to wirelessly transmit data traffic from one location to another, such as from our tower
l
ocat
i
ons to our networ
k
core. We
b
e
li
eve t
h
at m
i
crowave
b
ac
kh
au
l
s
ig
n
ifi
cant
ly
re
d
uces our
b
ac
kh
au
l
expenses an
d
i
mproves our a
bili
t
y
to sca
l
e our
b
ac
kh
au
l
networ
k
as t
h
e amount o
fd
ata tra
ffi
c over our networ
kg
rows, w
hil
eatt
he
s
ame time maintainin
g
the same or better reliabilit
y
than wireline based backhaul networks
.
Network
C
or
e
Th
e networ
k
core routes t
h
e
d
ata tra
ffi
co
f
our su
b
scr
ib
ers
f
rom our
b
ac
kh
au
l
networ
k
to t
h
e Internet or
,f
or ou
r
vo
i
ce serv
i
ces, t
h
epu
bli
csw
i
tc
h
e
d
te
l
ep
h
one networ
k
.T
h
epr
i
mar
yf
unct
i
ons o
f
t
h
eW
i
MAX core
i
nc
l
u
d
e:
• aut
h
ent
i
cat
i
ng an
d
aut
h
or
i
z
i
ng su
b
scr
ib
ers
;
•a
gg
re
g
atin
g
and routin
g
traffic to and from the Internet:
•su
b
scr
ib
er prov
i
s
i
on
i
n
g
an
d billi
n
g;
• contro
lli
ng IP a
dd
resses an
d
connect
i
ng to t
h
e Internet; an
d
• offerin
g
value-added services such as live video, location-based services, and music broadcast
programming
.
Network Management and O
p
erational Su
pp
ort S
y
stems (OSS)
We a
l
so use a networ
k
mana
g
ement s
y
stem t
h
at
i
ncorporates a comp
l
ete set o
f
mana
g
ement too
l
s to ena
bl
et
he
c
onfiguration, management, monitoring and reporting of all network status elements. This system provides secure,
c
entra
li
ze
d
an
d
remote con
fi
gurat
i
on o
fb
ase stat
i
ons, CPE, sw
i
tc
h
es an
d
ot
h
er networ
k
e
l
ements. T
h
e system
r
eports to an
d
a
l
erts our s
y
stem a
d
m
i
n
i
strators to a
l
arms an
df
au
l
ts, an
d
mon
i
tors s
y
stem per
f
ormance
d
own to t
he
i
ndividual CPE. It supports customizable report generation to track network performance, utilization and capacity
.
Spectru
m
O
ur networ
k
operates over
li
cense
d
spectrum
i
n our Un
i
te
d
States an
di
nternat
i
ona
l
mar
k
ets. A
l
t
h
ou
gh
severa
l
b
roa
db
an
d
tec
h
no
l
o
gi
es can operate
i
nun
li
cense
d
or pu
bli
c access spectrum, we
b
e
li
eve us
i
n
gli
cense
d
spectru
m
e
nables us to provide a consistently higher quality of service to our subscribers, without the interference that is
ty
p
i
ca
lly
assoc
i
ate
d
w
i
t
h
un
li
cense
df
requenc
yb
an
d
s
.
Unite
d
States
I
nt
h
eUn
i
te
d
States,
li
cense
d
spectrum
i
s
g
overne
dby
t
h
eFe
d
era
l
Commun
i
cat
i
ons Comm
i
ss
i
on, w
hi
c
h
w
e
r
efer to as FCC, rules that provide a license holder with exclusive use of a specified spectrum frequency band and
r
estr
i
ct
i
nter
f
erence
f
rom ot
h
er
li
censees an
d
spectrum users, prov
idi
n
g
some protect
i
on a
g
a
i
nst
i
nterrupt
i
on an
d
d
e
g
ra
d
at
i
on o
f
serv
i
ce. Un
d
er FCC ru
l
es, un
li
cense
d
spectrum users
d
o not
h
ave exc
l
us
i
ve use o
f
an
yf
requenc
i
es,
m
a
y
not cause interference with the operations of an
y
licensed operators and ma
y
suffer interference from others
15