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TRANSCRIPT
12.0
6.20
031
Intro
duct
ion
to B
luet
ooth
Kirs
ten
Mat
heus
The
idea
beh
ind
Blue
toot
h
The
prob
lem
s w
hen
tryin
g to
real
ize
the
idea
The
solu
tions
use
d in
Blu
etoo
th
How
wel
l the
sol
utio
ns w
ork
Seite
212
.06.
2003
The
Idea
Beh
ind
Blu
etoo
th
nive
rsal
, sho
rt ra
nge
cabl
e re
plac
emen
t su
ppor
ts s
peec
h an
d da
ta a
nd c
an b
e us
ed (a
lmos
t) w
orld
wid
e w
ithou
t the
nee
d of
an
infra
stru
ctur
e
digi
tal p
en
mob
ile p
hone
head
set
prin
ter
lapt
op
digi
tal c
amer
a
mob
ile p
hone
car
GSM
etc.
Seite
312
.06.
2003
Blu
etoo
th h
as to
Wid
ely
used
Onl
y w
ith m
any
BT p
rodu
cts
ther
e is
the
choi
ce to
con
nect
fre
ely
as y
ou li
ke
Func
tion
in th
e ha
rsh
cond
ition
sof
the
wire
less
tran
smis
sion
m
ediu
m
Com
patib
leSo
that
the
conn
ectio
nsm
ay b
e in
depe
nden
t of
man
ufac
ture
r
Seite
412
.06.
2003
Mea
sure
s to
Ens
ure
Dis
trib
utio
n:
Spec
ifica
tion
by in
dust
rial c
onso
rtiu
mEr
icss
on, I
BM, I
ntel
, Nok
ia a
nd T
oshi
ba fo
unde
d th
e BT
SIG
in 1
998
Fast
bec
ause
few
par
tner
s m
ean
few
er o
pini
on th
at h
ave
to b
e ag
reed
upo
n
Ope
n to
be
used
by
anyo
ne
No
fees
for k
ey p
aten
ts
Tech
nica
l sid
e co
mpa
rabl
y ch
eap
to re
alis
eC
hip
pric
e to
day
unde
r 5$U
S
Plac
ed in
unl
icen
ced
freq
uenc
y ba
nd (I
SM a
t 2.4
GH
z)Al
mos
t wor
ldw
ide
depl
oym
ent w
ithou
t the
nee
d to
pay
lice
nce
fees
Seite
512
.06.
2003
Mea
sure
s to
Ens
ure
Com
pata
bilit
y:
Qua
lific
atio
n pr
oced
ure
for e
very
BT
prod
uct
Spec
ific
prof
iles
for e
ach
appl
icat
ion
G
ener
ic A
cces
s Pr
ofile
Serv
ice
Dis
cove
ryA
pplic
atio
n Pr
ofile
TCS-
BIN
-bas
ed P
rofil
es
Cor
dles
s Ph
one
Prof
ileIn
terc
om P
rofil
e
Seria
l Por
t Pro
file
Dia
l-up
Net
wor
king
Prof
ile
Fax
Prof
ile
Gen
eric
Obj
ect E
xcha
nge
Prof
ile
Hea
dset
Pro
file
LAN
Acc
ess
Prof
ile
File
Tra
nsfe
rPr
ofile
Obj
ect P
ush
Prof
ile
Sync
hron
izat
ion
Prof
ile
Seite
612
.06.
2003
Con
nect
ion
Set-u
p Ex
ampl
e
Lap
top
know
s it h
as fo
und
a pr
inte
r an
d ho
w to
com
mun
icat
e w
ith it
, but
it
does
not
kno
w y
et w
hat p
rofil
es th
e pr
inte
r su
ppor
ts
inq.
scan
inq.
scan
inq.scaninq.scan
inq.scan
inq.scan
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an
inq.sc
an
inq.
scan
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scan
inq.scaninq.scan
inq.scan
inq.scan
inq.sc
an
inq.sc
an
inqu
iry
inqu
iry
inquiryinquiry
inquiry
inquiry
inquir
y
inquir
y
inq.
scan
inq.
scan
inq.scaninq.scan
inq.scan
inq.scan
inq.sc
an
inq.sc
an
inqu
iry
inqu
iry
inquiryinquiry
inquiry
inquiry
inquir
y
inquir
yL
apto
p kn
ows i
t has
foun
d a
prin
ter
and
how
to c
omm
unic
ate
with
it, b
ut
it do
es n
ot k
now
yet
wha
t pro
files
the
prin
ter
supp
orts
FHS
pagi
ngpa
ging
pagingpaging
paging
paging
pagin
g
pagin
g
page
scan
page
scan
page scanpage scan
page scan
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scan
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scan
pagi
ngpa
ging
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paging
pagin
g
pagin
g
page
scan
page
scan
page scanpage scan
page scan
page scan
page
scan
page
scan
FHS
requ
est f
or F
TL
2CA
P co
nnec
tion
SDP
conn
ectio
nat
trib
utes
for
FT
Lap
top
now
has
all
info
rmat
ion
it ne
eds.
It c
an d
isco
nnec
t to
chec
k fo
r ot
her
devi
ces i
n th
e ar
ea, o
r it
can
ask
the
user
whe
ther
to p
rint
on
this
pr
inte
r or
it c
an st
art t
he p
rint
ing
proc
ess
inq.
scan
inq.
scan
inq.scaninq.scan
inq.scan
inq.scan
inq.sc
an
inq.sc
an
inq.
scan
inq.
scan
inq.scaninq.scan
inq.scan
inq.scan
inq.sc
an
inq.sc
an
Seite
712
.06.
2003
Tech
nica
l Dat
a
Org
aniz
ed in
pac
kets
GFS
K m
odul
ated
dat
a at
1M
bps
(1bi
t = 1
sym
bol)
79 c
arrie
rs o
f 1M
Hz
1mW
tran
smit
pow
er (1
00m
W o
ptio
nal)
Mas
ter/S
lave
con
cept
(pic
onet
s)
acce
ssco
de 7
2
head
er 5
4pa
yloa
d 16
…27
36
^
mas
ter
slav
e 1
slav
e 2
slav
e 3
Org
aniz
es th
epi
cone
t of
up to
7 s
lave
sD
eter
min
es th
e ho
p se
quen
ce o
fFH
/TD
D-s
chem
e
Seite
912
.06.
2003
AC
L Pa
cket
s (fo
r Dat
a)
(A
)sym
met
ric, a
sync
hron
ous
serv
ices
Bec
ause
dat
a al
low
s no
bit
erro
rs, A
RQ
sch
eme
Polli
ng s
chem
e fo
r sla
ves
Qua
lity
of d
ata
link:
Bur
st re
quire
sre
tran
smis
sion
Ret
rans
mitt
edbu
rsts
are
cou
nted
in
the
burs
t fai
lure
ra
te B
FR
Cau
ses
dela
y
Up
to 1
0% p
acke
t re
tran
smis
sion
s ok
Payl
oad
can
beus
ed w
ith o
ptio
nal
FEC
cod
ing
(rat
e 2/
3)
Seite
10
12.0
6.20
03
AC
L Pa
cket
Typ
es
shor
t pac
kets
are
less
sen
sitiv
e to
inte
rfer
ence
have
a s
mal
ler t
rans
mis
sion
rate
Seite
11
12.0
6.20
03
SCO
Pac
kets
(for
Spe
ech)
Sym
met
ric, s
ynch
rono
us s
ervi
ces
Spee
ch a
llow
s no
del
aySl
ot re
serv
atio
n at
fixe
d in
terv
alls
Spee
ch q
ualit
y:
Bur
st is
re
plac
ed w
ith a
01
bit
patte
rn
Payl
oad
(incl
.bi
t err
ors)
isfo
rwar
ded
to th
eC
VSD
dec
oder
Payl
oad
can
beus
ed w
ith o
ptio
nal
FEC
cod
ing
Rep
lace
d bu
rsts
are
coun
ted
in th
e fr
ame
eras
ure
rate
FER
Bur
sts
with
too
man
y bi
t err
ors
are
coun
ted
in th
e un
sat.
payl
oad
rate
UPR
Cau
ses
crac
klin
gno
ise
Com
bine
d in
the
unsa
t. bu
rst r
ate
FER
+UPR
=UB
R
1-2%
ave
rage
U
BR
per
link
un
acce
ptab
le
Dis
tort
s th
e vo
ice
AC
L:U
p to
10%
pac
ket
retr
ansm
issi
ons
ok
Seite
12
12.0
6.20
03
SCO
Pac
ket T
ypes
!HV1
cau
ses
thre
e tim
es a
nd H
V2 c
ause
s 1.
5 tim
es!m
ore
inte
rfer
ence
than
HV3
but
onl
y th
eir
!pay
load
s re
ceiv
es m
ore
prot
ectio
n
Seite
13
12.0
6.20
03
Pack
et T
ypes
in O
verv
iew
Type
FEC
sym
met
ricas
ymm
etric
traf
ficD
M1
2/3
108.
8 kb
it/s
108.
8 kb
it/s
108.
8 kb
it/s
DM
32/
325
8.1
kbit/
s38
7.2
kbit/
s54
.4 k
bit/s
DM
52/
328
6.7
kbit/
s47
7.8
kbit/
s36
.3 k
bit/s
DH
1-
172.
8 kb
it/s
172.
8 kb
it/s
172.
8 kb
it/s
DH
3-
390.
4 kb
it/s
585.
6 kb
it/s
86.4
kbi
t/sD
H5
-43
3.9
kbit/
s72
3.2
kbit/
s57
.6 k
bit/s
Data
HV1
1/3
64 k
bit/s
HV2
2/3
64 k
bit/s
HV3
-64
kbi
t/s
Speech
Seite
14
12.0
6.20
03
Mix
ed L
ink
Exam
ple
SCO
AC
LSC
OA
CL
AC
LSC
OSC
OA
CL
MA
STE
R
SLA
VE
1
SLA
VE
2
SLA
VE
3
Seite
15
12.0
6.20
03
Inte
rfer
ence
Rob
ustn
ess
To in
terfe
re w
ith e
ach
othe
r diff
eren
t dev
ices
hav
e to
be
used
:
}D
epen
ds o
n us
er s
cena
rio
In th
e sa
me
loca
tion
At t
hesa
me
time
On
the
sam
e fr
eque
ncy
Dep
ends
on
spec
ifica
tion
Oth
er B
luet
ooth
pic
onet
sM
icro
wav
e ov
ens
IEEE
802
.11b
WLA
Not
her
Seite
16
12.0
6.20
03
not l
ike
cellu
lar s
yste
ms
bloc
king
, adj
acen
t cha
nnel
effe
cts
hit o
r mis
s (in
terf
eren
ce)
mas
ter
slav
e 1
slav
e 2
slav
e 3
mas
ter
slav
e 1
slav
e 2
slav
e 3
Inte
rfer
ence
Rob
ustn
ess
Seite
17
12.0
6.20
03
Inte
rfer
ence
in C
ellu
lar S
yste
ms
BS
MT
1
MT
2
MT
3
BS M
T 1
MT
2
MT
3B
S
MT
1 MT
2
MT
3
BS
MT
1
MT
2
MT
3
BS
MT
1M
T 2
BS
MT
1
MT
2
Min
imum
dis
tanc
e to
nex
t co-
chan
nel i
nter
fere
r
Seite
18
12.0
6.20
03
Perf
orm
ance
in C
ase
of
Blu
etoo
th in
terf
eren
ce
Rad
io N
etw
ork
Sim
ulat
ions
(in
MAT
LAB)
Man
y si
mul
tane
ous
BT c
onne
ctio
ns
Prop
agat
ion
Mod
elD
ista
nt d
epen
dent
fadi
ngSh
adow
ing
Mul
tipat
h fa
ding
Traf
fic M
odel
sW
ww
-traf
fic (a
v.ge
nera
ted
data
33.
2kbp
s)
Posi
tioni
ng M
odel
10m
by
20m
room
Uni
form
dis
tribu
tion
of m
aste
rsSl
aves
at a
v. 2
m to
mas
ter i
n 2-
dim
Gau
ssia
n di
strib
utio
n
Seite
19
12.0
6.20
03
Perf
orm
ance
in C
ase
ofB
luet
ooth
Inte
rfer
ence
(con
td)
Num
ber o
f con
curr
ent W
WW
-ses
sion
s
Average throughput [bits/s]
At 1
00 c
oncu
rren
t WW
W-s
essi
ons
only
5%
thro
ughp
ut d
egra
datio
n
Seite
20
12.0
6.20
03
Perf
orm
ance
in C
ase
ofM
icro
wav
e O
ven
Inte
rfer
ence
Inte
rfer
ence
of m
icro
wav
e ov
en d
epen
ds o
n:Ty
pe (r
esid
entia
l or c
omm
erci
al)
Ove
n br
and
Ove
n lo
adPo
sitio
n of
the
rece
iver
tow
ards
the
oven
(in
fron
t of
win
dow
wor
st ra
diat
ion)
Dis
tanc
e be
twee
n re
ceiv
er a
nd o
ven
Seite
22
12.0
6.20
03
Perf
orm
ance
in C
ase
ofM
icro
wav
e O
ven
Inte
rfer
ence
(con
td)
9ms (
of 2
0ms m
ains
pow
er c
ycle
)
Seite
23
12.0
6.20
03
Perf
orm
ance
in C
ase
ofM
icro
wav
e O
ven
Inte
rfer
ence
(con
td)
Sim
ulat
ion
Para
met
ers:
Dis
tanc
e of
BT
to m
icro
wav
e ov
enD
ista
nce
betw
een
BT
units
As
expe
cted
: The
clo
ser t
he B
luet
ooth
uni
ts to
eac
h ot
her a
nd th
e fu
rthe
r aw
ay th
ey a
re fr
om th
e m
icro
wav
e ov
en th
e be
tter
Dat
a (A
CL)
tran
smis
sion
is u
ncrit
ical
Spee
ch (S
CO
) tra
nsm
issi
onN
ot c
ritic
al in
PA
N e
nviro
nmen
ts
Deg
rada
tions
will
occ
ur o
nly
atun
favo
urab
ledi
stan
ce ra
tios
Even
then
the
degr
adat
ion
is s
moo
th a
nd
Com
preh
ensi
bilit
y re
mai
ns
Seite
24
12.0
6.20
03
Perf
orm
ance
in C
ase
ofIE
EE 8
02.1
1b In
terf
eren
ce
ter2.44
GHz
Span
80MHz
8MHz/
Cen
-110
-100-90
-80
-70
-60
-50
-40
-30
-20
-113-13
Blu
etoo
thFH 79
x1M
Hz
1mW
ter2.44
GHz
Span
80MHz
8MHz/
Cen
-110
-100-90
-80
-70
-60
-50
-40
-30
-20
-113-13
ter2.44
GHz
Span
80MHz
8MHz/
Cen
-110
-100-90
-80
-70
-60
-50
-40
-30
-20
-113-13
mai
n lo
be first
sid
e lo
befir
st s
ide
lobe
seco
nd s
ide
lobe
and
rest
seco
nd s
ide
lobe
and
rest
In p
rinci
ple
over
lap,
act
ual i
mpa
ct (o
f 802
.11b
on
BT
or o
f BT
on 8
02.1
1b) d
epen
ds o
n lo
catio
n of
uni
ts
802.
11b
DSS
S22
MH
z10
0mW
12.0
6.20
03
Perf
orm
ance
in C
ase
ofIE
EE 8
02.1
1b In
terf
eren
ce (c
ontd
)
40 2030 2535
17MHz at 20dBm
f 45
t
Seite
27
12.0
6.20
03
Perf
orm
ance
in C
ase
ofIE
EE 8
02.1
1b In
terf
eren
ce (c
ontd
)
Voic
eA
udib
le d
egra
datio
ns u
nles
s B
T-lin
k <0
.5m
Dat
a Up
to 5
m B
T-lin
k PL
R a
lway
s sm
alle
r tha
n 20
%
PLR
<10%
for B
T-lin
k<2m
and
mor
e th
an 5
m d
ista
nce
to W
LAN
Seite
28
12.0
6.20
03
Futu
re D
evel
opm
ents
Blu
etoo
th S
peci
ficat
ion
1.2
Impr
ovem
ents
and
add
ition
s to
Spe
c. 1
.1A
dapt
ive
Freq
uenc
y H
oppi
ngIm
prov
emen
ts o
f voi
ce li
nkQ
oSFu
rthe
r pro
files
(Han
ds-fr
ee, S
IM-a
cces
s et
c)
Blu
etoo
th V
ersi
on 2
.0H
igh
rate
mod
e w
ith 1
0-fo
ld th
roug
hput
Dow
nwar
d co
mpa
tible
12.0
6.20
0329
Sum
mar
y Th
e id
ea a
nd b
asic
prin
cipl
es b
ehin
d Bl
ueto
oth
Uni
vers
al c
able
repl
acem
ent
Com
patib
ility
and
wor
ld w
ide
depl
oym
ent f
easa
ble
Mas
ter/S
lave
con
cept
FH/T
DD
Diff
eren
t con
cept
ions
of s
peec
h an
d da
ta q
ualit
y
Inte
rfere
nce
Rob
ustn
ess
Blue
toot
h to
Blu
etoo
th
Mic
row
ave
oven
to B
luet
ooth
IEEE
802
.11b
to B
luet
ooth
Futu
re D
evel
opm
ents
Seite
30
12.0
6.20
03
Kom
mun
ikat
ions
char
akte
ristik
a de
r Die
nste
:
Hoh
e D
aten
sich
erhe
it(F
ehle
rbeh
ebun
g)Fi
le T
rans
fer
Dat
enüb
ertr
agun
g
Sem
iech
tzei
tSt
ream
ing
Info
tain
men
t
Hoh
e D
aten
sich
erhe
it(F
ehle
rbeh
ebun
g)D
aten
upl
oad
Flas
hen
der
Steu
erge
rät-S
W
Sem
iech
tzei
tSi
gnal
isie
rung
SIM
Zug
riff
64K
bit/s
; iso
chro
nSp
rach
über
trag
ung
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