Extras
Short Description
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Description
LTE/SAE System Overvi Overview ew Extra Slides
S+ectrall E,,iciency Tar)ets S+ectra
Two #nicast EPS .earers TS 2-01
T(T Tra,,ic T(T Tra,,ic (low (lo w Tem+late Tem+late TE34 T!nnel End+oint 3denti,ie 3denti,ierr
Standardi5ed 6oS TS 2-20QCI
Priority
Packet Delay Budget
Packet Error Loss Rate
1
2
100 ms
10*2
Conversational 8oice
190 ms
10*-
Conversational 8ideo :Live Streamin);
9
-00 ms
10*'
,rames H 20 slots I0
I1
I2
I-
I
I9
I'
I%
I$
I?
P.C One s!>,rame :1 ms; H two slots
One slot :09 ms; H % O(4= sym>ols Normal CP, 7 OFDM symbols per slot
One O(4= sym>ol
T CP
T u ''% s
P.C sent in s!>,rame I0 slot 1 sym>ol 0*- over conse!tive radio ,rames :0 ms; SS sent in s!>,rame I0 and I9 slot s lot 0 and 10 sym>ol 9*' :*9 in case o, extended CP;
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*12
LTE 4L +ysical reso!rce J
One &eso!rce .loc@ is 12 s!>*carriers s !>*carriers d!rin) one 09 ms slot
J
Te >asic TT3 :T :Transmission ransmission Time Time 3nterval; ,or 4L*SC is 1 ms – TT3 is a transport channel property – S!>,rame is a physical a physical channel property property – One :or two; trans+ort >loc@s +er TT3 sent to L1
f H H 19 @5
O n e e s l l o o t t : T T
s l lo t
H 0 /
9 m s 2 % O ( 4 4 = s y m m> o o l l s s ;
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*1-
One Resource Block :12% H $ reso!rce elements;
4ownlin@ K O(4= wit Cyclic Pre,ix J Parallel transmission !sin) a lar)e n!m>er o, narrow>and s!>*carriersM J =!lti*carrierM transmission – Ty+ically im+lemented wit ((T :(ast (o!rier Trans,orm; and 3nverse ((T , 1
3((T
f !" k#$
, 2
S/P
, =
*+ M#$ e-ample.
J 3nsertion o, cyclic +re,ix +rior to transmission – 3m+roved ro>!stness in time*dis+ersive cannels K re/uires CP 0 1elay sprea1 – S+ectral e,,iciency loss Co+y
Con,i)!ration f
CP len)t
Sym>ols +er slot
ol o, eac slot as a CP len)t o, 92 s
4ownlin@ T & sceme K O(4= Tx
M sym>ols sym>ols
f
0
(rom codin) mod!lation
Si5e*< 3((T
S/P
M subcarriers
CP insertion
T u !2 f
0
to &( tx T CP
T u
T CP'(
T u
M sym>ols sym>ols
Rx
0
,rom &( rx
CP removal
Si5e*< ((T
P/S To demod!lation decodin) 0
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*19
O(4= Tx * 3((T One O(4= sym>ol :''%Rs;
One sam+le
0 2*+%6 )+1 e 3*45+5 0 )+, )+
X 0
Mo1ulate1 baseban1. an1 co1e1 complesymbols X 0, X 1, X 2 X1199
I--T
f samplin8 *+%62))&79s :+&7*M#$
/ / / /
)+,"%
n +&&&*+%7 samples 1urin8 one OFDM symbol ))&7 Rs;
0 2*+%6 e 3*45!5 0
X 1
*+%7
S/P
Q
!2N
0 2*+%6 e 3*45*5 0
X 2
///
x 0...x3...x2047
36* mod!lation
k+
///
CP insertion
e 3*45!!5 0 2*+%6
f RF
X 1199
///
0
+addin)
0 2*+%6 e 3*45*+%75 0
0 / / / /
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*1'
xn
1
N 1
X k e N k 0
j 2 kn N
, n 0... N 1
O(4= &x * ((T N 1
j 2 kn
X k xn e
N
, k 0... N 1
n0
One O(4= sym>ol :''%Rs;
One sam+le k+, 5 +2*+%6 k+1 05+2*+%6 e'3*45 0 k+
x0
--T / / / /
k+,"%
5 !2*+%6 05!2*+%6 e'3*45 0
x1
*+%7 36*demod
x0...x3...x2047
S/P
Q
5 *2*+%6 05*2*+%6 e'3*45 0
/Sam+lin) x2
/// f RF
CP remo;al
n+
/// 5 *+%72*+%6 05*+%72*+%6 e'3*45 0
x2047
/ / / /
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*1%
Baseban1 complesymbols sent to 1emo1 an1 1eco1in8 X 0 , X 1, X 2
... X 1199..0, 0
k +&&&*+%7 samples 1urin8 one OFDM symbol ))&7 Rs;
Cell*s+eci,ic &e,erence Si)nals * m!lti+le antennas J
One re,erence si)nal +er antenna +ort – –
J
4i,,erent time/,re!ency reso!rces !sed ,or di,,erent antenna +orts –
J
1 2 or antenna +orts s!++orted s+eci,ied +er antenna +ort re,erence si)nals are not +re*coded +re*coded
ol transmitted on one antenna
i)er density in time ,or antenna 1 2 tan antenna -
Antenna +ort I1
Antenna +ort I1
Antenna +ort I2
Antenna +ort I2
Antenna +ort I-
Fre/uency Time © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*1$
Antenna +ort I
#+lin@ transmission sceme K 4(TS*O(4= J
O(4= wit 4(T*>ased +re*codin)
J
Same >asic MO(4=M +arameters as ,or downlin@
Low PAP&
– , H 19 @5 TCP % / 92 s TCP*E 1'% s J
Orto)onal !+lin@ K no intra cell inter,erence .E1 .loc@ o, =1 sym>ols ,or !ser 1
MSin)le*carrierM si)nal ,1
Si5e*=1 4(T
Si5e*< 3((T
CP insertion T CP
0
T CP'(
.E =2F=1 .loc@ o, =2 sym>ols ,or !ser 2
0
T u T u
MSin)le*carrierM si)nal ,2
Si5e*< 3((T
Si5e*=2 4(T
CP insertion T CP T CP'(
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*1?
T u T u
4L reso!rce )rid 9 =5 S!>,rame 0
S!>,rame 9
r e i r 2$$ r a c x > e ! d n S i
1$0
1'$
10$
0 © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*20
S!>,rame 1* '*?
Time y c n e ! C e r (
#L reso!rce )rid P&AC P#CC P#SC 4=&S in P#SC Su/0rame ,
Su/0rame 1 Su
Su/0rame
Su/0rame !
(or cell ran)e over 19 @m
Su/0rame "
Su/0rame #
Su/0rame $
Su/0rame %
Su/0rame &
Su/0rame '
Oter +ossi>le P&AC o++ort!nities P&AC P#CC P#SC 4=&S in P#SC
Su/0rame ,
Su/0rame 1 Su
Su/0rame
Su/0rame !
Su/0rame "
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*21
Su/0rame #
Su/0rame $
Su/0rame %
Su/0rame &
Su/0rame '
#+lin@ reso!rce allocation J Eac s!>,rame consists o, two slots J Eac slot consists o, – ' >loc@s ,or data :eac >loc@ is one 4(TS*O(4= sym>ol; – 1 >loc@ ,or re,erence si)nals J Transmission >andwidt and location in ,re!ency controlled >y e ! * , , r a am e : 1 1
O n e s l l o ot : 0/ 9 0 m s ;
1&. 4ata © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*22
-&. &e,erence si)nal
m s ;
#L Cannel*so!ndin) Cannel*so!ndin) re,erence si)nal
#ser I1
#ser I2
O n e s !> ! * ,r , a am e : 1 1 m s ;
O n e s l l o ot : 0/ 9 0 m s ;
4ata
4emod!lation re,erence si)nal
Cannelso!ndin) re,erence si)nal
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*2-
TA List conce+t
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*2
Slid Sl idin in) ) TA TA Li List st Bi Bind ndow ow
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*29
Pa)in) Proced!re
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*2'
n ance o ce erv ce Transmitter
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*2%
*
n ance &eceiver
o ce erv ce
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*2$
*
n ance codecs Source codec /it rate 2k/it3s4 9? :SC*8.&; %2 $0 ?' 1-2 1-2 :cannel aware; 1' 2 -2 $ ' ?' 12$
o ce erv ce
5udio /a)d6idt(s supported le o+tion © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*-9
Access via lic #ser 34 ? == A!t Answer ilities 9
&E73STE&
ssed!se
$
P!>lic 34 4lisment Ori)inatin)
Terminatin)
Exec!tion o, Ori)natin) ==Tel services ,or A
Exec!tion o, Terminatin) ==Tel services ,or . 8T5S
8T5S 3SC
3SC
3=S Core =w
SCSC-
ICSC-
=w
SCSC-
=w
Cx =w
LTE/EPC S.7
A callin) callin) .
A © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*91
.
S3P to S3P Session +art 1 ed!se domain
imtse domain
CS*AS
CS*AS SS
S*CSC(
9 1'
3o>Ximtse S4P P*CSC(
S*CSC(
19
3o>Ximtse
S4P %
S4P
S4P
1$0 &)
P*CSC( 3o>X3P S4P 1-
P*CSC( Pro,ile Tri))ers #A 3P
#A or S.7 3P S*CSC(
1$0 &)
1
-
1$0 &in)in)
1$0 &)
3o>Ximtse S4P
S*CSC(
S4P ?
1$0 &)
3 3 P ' P Ximtse
1$0 &)
1$0 &)
>o>Ximtse
$
S4P 2 P*CSC( Pro,ile Tri))ers #A 3P
1'
3o>Ximtse
1$0 &)
S*CSC(
>o>Ximtse S4P
3o>Ximtse
3Ximtse D' -1 0 -%91
6C3 =a++in) QCI 1 ! " # $ % & '
Resource Packet delay Packet error Priority type /udget loss rate
*BR
:o)*BR
" # ! 1 % $ & '
1,, ms 1#, ms !,, ms #, ms 1,, ms 1,, ms
1, 1,! 1,$ 1,! 1,$ 1,!
!,, ms
1,
Example services 88Tel 0ull duplex voice 88Tel 88Tel 88T el real time video
I8S sig)ali)g De0ault /earer 88Tel? text commu)icatio)9 88Tel? 0ile tra)s0er9 picture3video clip etc@
J ==Tel ==Tel Service recommended r ecommended to ma+ onto di,,erent EPS >earers J An 3=S #E will always ave at least two >earers allocated all te time – Te de,a!lt >earer :.est e,,ort; – 3=S si)nalin) * S3P :6C3H9; J 4!rin) a voice call a tird >earer active :6C3H1; J 3n te ,irst de+loyments te de,a!lt >earer will >e !sed ,or 3=S si)nalin) © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*99
4edicated EPS .earer Esta>lisment
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*9'
4istri>!tion o, PCC &!les
4edicated EPS .earer Esta>lisment Est a>lisment
PCC? Policy Co)trol a)d C(argi)g © Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*9%
8oice Call 3nitiation
Only i, terminal is in >attery savin) state :#E*3dle =ode;
EPS 8oice >earer esta>lisment
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*9$
8oice Call Answerin)
Only i, #E in 3dle mode
EPS 8oice >earer esta>lisment
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*9?
End 8oice Call
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*'0
=O Call :ori)inated call; J CS(. re!ested >y te #E :=O call;
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*'1
=T :terminatin); call in idle mode J CS(. re!ested >y te networ@ :=T call;
© Ericsson 2011 | EPC Arcitect!re | L"#10$%020 &'A | (i)!re 2*'2
=T call in connected mode
A
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