Clearwire 2008 Annual Report Download - page 29

I
nternationa
l
We currentl
y
hold spectrum ri
g
hts in Bel
g
ium, German
y
, Ireland, Poland, Romania and Spain. We also hold a
m
inorit
y
investment in a compan
y
that holds spectrum in Mexico. In each of German
y
, Poland, Romania and Spain
,
our
li
censes cover t
h
e ent
i
re country. Our
li
censes
i
nBe
l
g
i
um an
d
Ire
l
an
d
cover a s
i
gn
ifi
cant port
i
on o
f
t
h
e
c
ountries’ populations. We believe that each of the respective frequenc
y
bands in which we or are investees hol
d
s
pectrum internationall
y
are or will be suitable for our service. A summar
y
of the international spectrum ri
g
hts held
b
y our su
b
s
idi
ar
i
es an
d
our equ
i
ty
i
nvestees
i
s
b
e
l
ow,
i
nc
l
u
di
ng t
h
e
f
requency
b
an
di
nw
hi
c
h
t
h
e spectrum
i
s
h
e
ld
,a
n
e
stimate of the population covered b
y
our spectrum in each countr
y
and the total MHz-POPs of our spectrum.
C
ountr
y
F
requenc
y
(
GHz
)
License
d
Po
p
ulation
(
1
)
MHz-POPs
(
2
)
(
In millions
)(
In millions
)
S
ubsidiarie
s
B
e
lgi
u
m
....................................
3
.
5
10
.
4 1,040
.
0
German
y
....................................
3
.
5
8
2.5 3
,
465.0
I
re
l
an
d
....................................
.
3
.
5/3
.
6
1.
5
127.
5
Po
l
a
n
d
...................................... 3.
6
38.1 1
,
066.
8
Ro
m
a
ni
a
.................................... 3.
5
21.
6
1,209.
6
Sp
a
i
n ......................................
3
.
5
45.1 1,804.
0
(1) Estimates based on countr
y
population data derived from the Economist Intelli
g
ence Unit database.
(2) Represents t
h
e amount o
f
our spectrum
i
na
gi
ven area, measure
di
n MHz, mu
l
t
i
p
li
e
dby
t
h
e est
i
mate
d
p
o
p
ulation of that area
.
As
i
nt
h
eUn
i
te
d
States, we eng
i
neer our
i
nternat
i
ona
l
networ
k
s to opt
i
m
i
ze t
h
e num
b
er o
f
users t
h
at t
he
network can support while providin
g
sufficient capacit
y
and bandwidth. Thus far, we have chosen not to launch ou
r
s
ervices in a market usin
g
our current technolo
gy
unless we control a minimum of 30 MHz of spectrum. However,
w
e expect t
h
e spectra
l
e
ffi
c
i
ency o
f
tec
h
no
l
og
i
es we
d
ep
l
oy to cont
i
nue to evo
l
ve, an
d
as a resu
l
t, we may
d
ec
id
et
o
d
ep
l
o
y
our serv
i
ces
i
n some mar
k
ets w
i
t
hl
ess spectrum. A
l
ternat
i
ve
ly
,as
i
nt
h
eUn
i
te
d
States, we cou
ld fi
n
d
t
h
at
new technolo
g
ies and subscriber usa
g
e patterns require us to have more spectrum than our current minimu
m
a
v
ailable in our markets
.
Th
e Internat
i
ona
l
Te
l
ecommun
i
cat
i
ons Un
i
on recent
ly
approve
d
t
h
e tec
h
n
i
ca
l
requ
i
rements
f
or 4G tec
h
no
l
-
o
gy
. The International Telecommunications Union has recommended that 4G technolo
g
ies need at least 40 MHz of
s
pectrum, an
d
pre
f
era
bl
y up to 100 MHz o
f
spectrum
i
n eac
h
mar
k
et, regar
dl
ess o
f
t
h
e
f
requency use
d
,
i
nor
d
er to
p
rov
id
esu
ffi
c
i
ent c
h
anne
l
w
id
t
h
to ena
bl
et
h
e
d
ata t
h
roug
h
put t
h
at 4G serv
i
ces w
ill d
eman
d
.We
b
e
li
eve t
h
at our
current spectrum holdin
g
s in most of our planned markets in the United States and in most of our international
mar
k
ets sat
i
s
f
yt
h
ese stan
d
ar
d
s
.
R
esearc
h
an
dD
eve
l
opmen
t
O
ur research and development efforts have focused on the design of our network, enhancements to the
capa
bili
t
i
es o
f
our networ
k
an
d
t
h
eevo
l
ut
i
on o
f
our serv
i
ce o
ff
er
i
n
g
s. A s
ig
n
ifi
cant port
i
on o
f
our researc
h
an
d
d
eve
l
opment e
ff
orts
i
nvo
l
ves wor
ki
n
g
w
i
t
h
t
h
e supp
li
ers o
f
our networ
ki
n
f
rastructure an
d
su
b
scr
ib
er equ
i
pment.
W
e are currentl
y
workin
g
with Intel, Motorola, Samsun
g
and other vendors to further develop network components
an
d
su
b
scr
ib
er equ
i
pment
f
or our mo
bil
eW
i
MAX networ
k.
O
ur research and development focuses on three ke
y
areas, which include technical requirement assessment
,
networ
k
an
d
per
f
ormance va
lid
at
i
on, an
di
nteropera
bili
ty test
i
ng, spann
i
ng access,
b
ac
kh
au
l
, “Core” (
i
.e., t
he
centra
l
aggregat
i
on po
i
nts
f
or our networ
k
),
d
ev
i
ces/c
hi
psets, an
db
ac
k
o
ffi
ce systems. We cont
i
nue to wor
k
towar
d
i
mprov
i
n
g
t
h
e per
f
ormance an
df
unct
i
ona
li
t
y
o
f
t
hi
s tec
h
no
l
o
gy
an
d
pro
d
ucts t
h
rou
gh
our on
g
o
i
n
g
researc
h
an
d
development activities. Several evolutionary products are currently in the early stages of development with radi
o
access networ
k
s partners,
i
nc
l
u
di
ng, among ot
h
ers, mu
l
t
i
-carr
i
er power amp
lifi
ers, remote ra
di
o
h
ea
d
so
l
ut
i
ons,
high
power P
i
coce
ll
s(w
hi
c
h
are
b
ase stat
i
ons
d
es
ig
ne
d
to cover a sma
ll
area, suc
h
as w
i
t
hi
no
ffi
ce
b
u
ildi
n
g
s,
17