wcdma or utra
TRANSCRIPT
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Communication Networks Research Lab.
CNRLab., Fall 2000
IMT-DS & IMT-TC(WCDMA or UTRA)
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Structure
• Logical Channels
– CCH: Control CHannel
• BCCH: Broadcast Control CHannel
• PCCH: Paging Control CHannel
• ACH: or!ard Access Control CHannel
• "ACH: "ando# Access Control CHannel
• $CCH: $edicated Control CHannel
– TCH: Traffic CHannel
• $TCH: $edicated Traffic CHannel
• PTCH: Pac%et Traffic CHannel
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Structure
• Trans&ort Channels
– Co##on CHannels
• BCH: Broadcast CHannel
• PCH: Paging CHannel
• ACH: or!ard Access CHannel
• "ACH: "ando# Access CHannel
• $SCH: $o!nlin% Shared CHannel
• CPCH: Co##on Pac%et CHannel
– $edicated Channels
• $CH: $edicated CHannel
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Structure
(cont’d
• Physical Channels
– CPICH: Co##on PIlot CHannel
– P'CCPCH: Pri#ary Co##on Control Physical CHannel
– S'CCPCH: Secondary Co##on Control Physical CHannel
– SCH: Synchroni(ation CHannel
– AICH: Ac)uisition Indicator CHannel
– AP'AICH: Access Prea#*le Ac)uisition Indicator CHannel
– C$+CA'ICH: Collision $etection+Channel Assign#ent IndicatorChannel
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Structure
(cont’d
• Physical Channels
– PICH: Paging Indicator CHannel
– P"ACH: Physical "ando# Access CHannel
– CSICH: CPCH Status Indicator CHannel
– PCPCH: Physical Co##on Pac%et CHannel
– $PCH: $edicated Physical CHannel
• $PCCH: $edicated Physical Control CHannel
• $P$CH: $edicated Physical $ata CHannel
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Ma!!in"
BCHBCH
PCHPCH
ACHACH
"ACH"ACH
$CH$CH
P'CCPCH
S'CCPCH
$P$CH
$PCCH$PCH
P"ACH
SCH
CPICH
CPCHCPCH PCPCH
AICH
AP'AICH
PICH
C$+CA'ICH
CSICH
P$SCH$SCH$SCH
Trans&ort
Channels
Physical
Channels
$o!nlin%
,&lin%
$L+,L
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Communication Networks Research Lab.
CNRLab., Fall 2000
$u&le-$u&le- $$ .I/T'$S0 + T$$ .I/T'TC0$$ .I/T'$S0 + T$$ .I/T'TC0
S#stem $arameters
/ulti&le Access/ulti&le Access
Chi& "ateChi& "ate
Carrier S&acingCarrier S&acing
ra#e Lengthra#e Length
$S'C$/A+$/A+S$/A$S'C$/A+$/A+S$/A
3.84+1234+56273 /c&s3.84+1234+56273 /c&s
628 /H( .988 %H( carrier raster0628 /H( .988 %H( carrier raster0
58 #s58 #s
Trans#ission Ti#e IntervalTrans#ission Ti#e Interval 58 #s+98 #s+8 #s+48 #s58 #s+98 #s+8 #s+48 #s
Su&er'ra#e Si(eSu&er'ra#e Si(e
/ulti'"ate+;aria*le "ate/ulti'"ate+;aria*le "ate
198 #sec .< 3 × 59 × 58 #sec0198 #sec .< 3 × 59 × 58 #sec0
;aria*le S&reading actor .=6590 > /ulticode .≤ 30;aria*le S&reading actor .=6590 > /ulticode .≤ 30
Trans&ort or#at $etectionTrans&ort or#at $etection Trans&ort or#at Co#*ination Indicator + Blind $etectionTrans&ort or#at Co#*ination Indicator + Blind $etection
Channel CodingChannel Coding? 79 %*&s? 79 %*&s
≥ 79 %*&s≥ 79 %*&s
Convolutional .K
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Communication Networks Research Lab.
CNRLab., Fall 2000
&u!le' o IMT%&S
6 /H(
6 /H(
58 #sec
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Communication Networks Research Lab.
CNRLab., Fall 2000
IMT-DS()C&M*+F&& or TR*+F&&
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Communication Networks Research Lab.
CNRLab., Fall 2000
&S%C&M*
8
5296 926 7216 628 3296 126 4216 58288 /H(
I/T'9888
5296 926 7216 628 3296 126 4216 5828 /H(
724 /c&s
724 /c&s 724 /c&s
724 /c&s
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Communication Networks Research Lab.
CNRLab., Fall 2000
S&M*
• Cellular Syste#Carrier frequency
PN sequence
Carrier frequency
PN sequence
Carrier frequency
PN sequence
Carrier frequency
PN sequence
Carrier frequency
PN sequence
Carrier frequency
PN sequence
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Communication Networks Research Lab.
CNRLab., Fall 2000
&ata Rate -s. Chi! Rate
4 kbps
8 kbps
16 kbps
32 kbps
64 kbps
128 kbps
384 kbps
589 %*&s
984 %*&s
3.84 Mcps
1234 /c&s
56273 /c&s
0 kbps
Chip RateData Rate
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Communication Networks Research Lab.
CNRLab., Fall 2000
Si"nal Format
$o!nlin% Physical Channels
,&lin% Physical Channels
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Communication Networks Research Lab.
CNRLab., Fall 2000
C$IC, SC / $%CC$C
8 5 9 ••• 5
8 5 9
PC
Ti#e Slot
C
Pri#ary Synchroni(ation Code
Secondary Synchroni(ation Code
56 %s&s
ra#e
SCH
P'CCPCH
7
58 #s
CPICH
Pri#ary
Scra#*ling
Code
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Communication Networks Research Lab.
CNRLab., Fall 2000
S%CC$C
8 5 9 ••• 5
8 5 9 ra#e
Data Pi*%t+,C-
7
Ti#e Slot
Pri#ary
Scra#*ling
Code
SecondaryScra#*ling
Codes
8
5
97
56
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Communication Networks Research Lab.
CNRLab., Fall 2000
$R*C
8 5 9
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
/essage Part
8@3
chi&s
/essage Part
58 #s
98 #s
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
/
/
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
Ti#e Slot
Access Slot
ra#e7
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Communication Networks Research Lab.
CNRLab., Fall 2000
$reamble o $R*C
8 5 9
Access Slot
ra#e
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
/essage
8@3 chi&s
8@3 chi&s < 963 G 53 chi&s
Hada#ard Code of Length 53
58 #s or 98 #s
7
Scra#*ling Code
Hada#ard Code
CNRL b F ll 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
$C$C
8 5 9
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
/essage Part
8@3
chi&s
58 #s G n
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
/
8 5 9 7 6 3 1 4 @ 58 55 59 57 5
Ti#e Slot
Access Slot
ra#e7
/
Access
Prea#*le
Collision
$etection
Prea#*le
Po!er
Control
Prea#*le
CNRL b F ll 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
&onlin1 &$C
8 5 9 ••• 57 5
8 5 9
+,C-+PC Pi*%tData Data
+,C-+PC Pi*%tData Data
Ti#e Slot
$PCCH$P$CH
ith TCI
ithout TCI .Blind
$etection0
+PC Pi*%tData Data
+PC Pi*%tData Data
ra#e7
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
&SC / &onlin1 &$CC
8 5 9 ••• 5
8 5 9 ra#e
Data
7
Ti#e Slot
+,C-+PC Pi*%t
+,C-+PC Pi*%t
+,C-+PC Pi*%tData Data
+,C-+PC Pi*%tData Data
Data
$PCCH
$PCCH $P$CH
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
!lin1 &$C
8 5 9 ••• 5
8 5 9
Data
,- +PCPi*%t
Ti#e Slot
$P$CH
$PCCH +,C-
ra#e7
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
Closed Loo! $oer Control
• &en Loo& ,&lin% Trans#it Po!er Control
• &en Loo& $o!nlin% Trans#it Po!er Control
• Closed Loo& ,&lin% Trans#it Po!er Control
• Closed Loo& $o!nlin% Trans#it Po!er Control
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
Data
+,C- +PC
Data
Closed Loo! $oer Control
+,C-+PC P+Data Data
+,C-+PCData Data
P+
P+
82331 #s
589 chi&s
P+
tart P%int %f
+rans)it P%er
$&ust)ent
P+
R -R
Measure)ent
, -R
Measure)ent
R-
R-
P+
tart P%int %f
+rans)it P%er
$&ust)ent
Data
Data
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
Channel Codin" / Interlea-in"
Convolutional Coding
Tur*o Coding
/ulti'stage Interleaving ./IL0
CNRLab Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
Inner Codin" $arameters
+ransp%rt Channe* +ype+ransp%rt Channe* +ype
CC(CC(
Coding Sche#eCoding Sche#e Coding "ateCoding "ate
PC(PC(
,$C(,$C(
R$C(R$C(
DC( 5 32 kbpsDC( 5 32 kbps
DC( ≥
32 kbpsDC( ≥ 32 kbps
Convolutional Code
.K
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Communication Networks Research Lab.
CNRLab., Fall 2000
Con-olutional Code
-nput
Data
3 4N
03 4FF
RateRate
172172173173
eneratin9 P%*yn%)ia*eneratin9 P%*yn%)ia*
555 585 855555 585 855585 585 555585 585 555
585 558 885585 558 885558 558 855558 558 855 555 885 885555 885 885
CNRLab., Fall 2000
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Communication Networks Research Lab.
CNRLab., Fall 2000
Turbo Code
• F)ual to I/T'/C
-nterna*
-nter*ea:er
-nterna*
-nter*ea:er
-nput
Data
yste)atic
it
Parity its
$ifferent fro#I/T'/C
CNRLab., Fall 2000
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Communication Networks Research Lab.
,
S!readin" Modulation
Co#&le- PSK
rthogonal Co#&le- PSK
CNRLab., Fall 2000
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Communication Networks Research Lab.
,
Modulation
• $o!nlin% .BS → /S0
S+PCo#&le-
/ulti&ly
Co#&le-
/ulti&ly
Σ
Σ
CJ-
P5 P9
E-
E-
Σ
sin(wct)
cos(wct)
CPSK
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CNRLab., Fall 2000
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Communication Networks Research Lab.
Modulation (cont’d
• ,&lin% ./S → BS0
S+PCo#&le-
/ulti&ly
Co#&le-
/ulti&ly
Σ
Σ
Σ
J9nJ8 J5
E-
E-
sin(wct)
cos(wct)
$eci#ator $eci#ator
CPSK
P5 P9
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CNRLab., Fall 2000
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Communication Networks Research Lab.
Common $ilot / &edicated $ilot
$edicated Physical Channel
Co##on Physical Channel
CNRLab., Fall 2000
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Communication Networks Research Lab.
*s#nchronous Inter%5S S#stem
58 #sec
ra#e Trans#it Ti#e
CNRLab., Fall 2000
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Communication Networks Research Lab.
&i-ersit# ando
∆t
∆t
∆t
CNRLab., Fall 2000
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Communication Networks Research Lab.
Site Selection Transmit &i-ersit#
"eceived
Pilot
Po!er
$cti:e et
8
$cti:e et
$cti:e et
D%n*ink
DPC(fr%) ;$
D%n*inkDPC(
fr%) ;
58 #s
CNRLab., Fall 2000
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Communication Networks Research Lab.
Inter%Fre6uenc# ard ando
f 7
f 9
f 5
Hard
Handoff $PCH
CNRLab., Fall 2000
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Communication Networks Research Lab.
Scramblin" Code
Shortened Eold Se)uence Eenerator
Initial Cell Search
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CNRLab., Fall 2000
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Communication Networks Research Lab.
!lin1 Scramblin" Code 7enerator (7old Se6uence or R*89 Recei-er
PI
53111979 < 99
7488
996'5
PI P
7488
P
85951545@989599979 76314
CNRLab., Fall 2000
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Communication Networks Research Lab.
!lin1 Scramblin" Code 7enerator (9'tended S(2 Code or M&
PI
8597631
8597631
8597631
> /a&&er P
7
9
7
7
>>>
#od
9
9
#od 9
#od 9
#od
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CNRLab., Fall 2000
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Communication Networks Research Lab.
4rtho"onal :ariable S!readin" Factor Code
0
00
01
0000
0011
0101
0110
00000000
00110011
01010101
01100110
00001111
00111100
01011010
01101001
0000000000000000
0011001100110011
0101010101010101
0110011001100110
0000111100001111
0011110000111100
0101101001011010
0110100101101001
0000000011111111
0011001111001100
0101010110101010
0110011010011001
0000111111110000
0011110011000011
0101101010100101
0110100110010110
,
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Communication Networks Research Lab.
Initial Cell Search *l"orithm
SlotJ8 SlotJ5 SlotJ9 SlotJ7 SlotJ SlotJ5 SlotJ56 SlotJ8
82331 #s
58 #s
Co##a ree Code
CNRLab., Fall 2000
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Communication Networks Research Lab.
Initial Cell Search *l"orithm (cont’d
BSJB
BSJC
BSJA
CNRLab., Fall 2000
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Communication Networks Research Lab.
Initial Cell Search *l"orithm (cont’d
82331 #s
82396 #sBSJA
BSJB
BSJC
Matche&
,i*ter
/utput
CNRLab., Fall 2000
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Communication Networks Research Lab.
Initial Cell Search $rocedure
Slot+Sy#*ol Synchroni(ation
ra#e Synchroni(ation
Code Erou& Identification
Scra#*ling Code Identification
/S Po!er
Code Trac%ing
ne /atched ilter
Seventeen Correlators
Si-teen Correlators
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CNRLab., Fall 2000
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Communication Networks Research Lab.
STT&
• S&ace Ti#e coded Trans#it antenna $iversity
S+P Σ
sin(wct)
cos(wct)
ΣS+PFncoder
*7 *9 *5 *8
'*5 *8 *7'*9
*7 *9 *5 *8
CNRLab., Fall 2000
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Communication Networks Research Lab.
TST&
• Ti#e S!itched Trans#it $iversity for SCH
sin(wct)
Σ
sin(wct)
cos(wct)
Σ
ΣE9
E5
Σ
E9
E5
SCH
PSC
SSC
963 chi&s
CNRLab., Fall 2000
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Communication Networks Research Lab.
Closed Loo! Transmit &i-ersit#
Σ
Σ
!5
Σ
sin(wct)cos(wct)
Σ
"BB
$F/,D
BI
Channel
$ecoder
CPICHJ9
CPICHJ5
>ei9ht enerat%r
!9
$PCH
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CNRLab., Fall 2000
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Communication Networks Research Lab.
T&& 4!eration
al%ie'Tal%ie unction
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CNRLab., Fall 2000
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Communication Networks Research Lab.
$arallel Transmit &i-ersit#
Co#&le-
/ulti&ly
Σ
Σ
y
E-
E-
Σ
sin(wct)
cos(wct)
-
S+P• •
•
• • •
Co#&le-
/ulti&ly
Σ
Σ
PI
P
E-
E-
ΣS+P• • •
• • •
CNRLab., Fall 2000
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+hank y%u ?+hank y%u ?