3G Overview Presentation

April 14, 2018 | Author: Mostafa Mohamed Elagory | Category: Asynchronous Transfer Mode, Code Division Multiple Access, Computer Network, 3 G, Network Protocols
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3G Overview Presentation...

Description

Vodafone

Overvie w

Prepared Prepared By: By: Ayman Ayman Ahmed Ahmed Abdel Abdel Halim Halim Cai r o & Al ex ad Ri o O per at i on Dept .

Vodafone

A genda Agenda 

Definitions



Introduction



Node B Overview



RBS Element Manager Overview



Step by step



RBS !!! "roducts



References 2

DD efi n i t i ons efi n i t i o n s Abbreviaion!

Abbreviaion!

Abbreviaion!



UMTS

#niversal Mobile $elecommunication %ccess



CDMA

&ode Division Multiple %ccess



ATM

%sync'ronous $ransfer Mode



IP

Internet "rotocol

 

RAN RNC

Radio %ccess Networ( Radio Networ( &ontroller



IMT

International Mobile $elep'ony



ITU

International $elecommunication #nion



UTRAN

#$MS $errestrial Radio %ccess Networ(



RNS

Radio Networ( Subsystem



IMA

Inverse Multiple)ing of %$M

3G Overview



I n t r o d u c t i o n I n t r o d u c t i o n * is a world trend t'at we s'ould consider * structure allows t'e servers and M*+s to wor( in pool, t'is saves a lot of un-utili.ed resources on t'e networ( level compared to 2* networ(/

WH Y

In a * networ(, t'e transcoders are placed at t'e edge of t'e "S$N rat'er t'an on t'e Radio side li(e 2* networ(s/ $'is leads to a dramatic 01 reduction of transmission

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n * is a world world trend trend t'at t'at we s'ould consider

(orld Trend Dynami"ally !harin# re!o$r"e! be%een voi"e an d daa & red$"in# re'$ired "apa"iy

&ommon use of one bac(bone for data and voice saves investment since t'e two types of

Capacity without convergence

Capacity with convergence

Required capacity Saved capacity

traffic time/ never pee( at t'e same

Mb/s

Mb/s

Required capacity

Mo rni ng

After noo n Evening

Time of day

Mo rni ng

After noo n Evening

Time of day

7

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n UMTS $'e UMTS is one of t'e t'e ma3or ma3or new new t'ird t'ird generation generation mobile mobile communications communications systems being developed wit'in t'e framewor( w'ic' 'as been defined by I$# and (nown as IMT & )*** networ(/

$'e UMTS will accommodate t'e growing number of of interconnections between a 4arity of networ(s circuits and pac(et switc'ed narrowband and broadband, voice, data, fi)ed and mobile/ 5or t'e operator t'e #M$S networ( means continuity of services, optimi.ed end-user application portfolios and significant cost reductions in transmission, operation and maintenance/

$'e UMTS 'as potential to provide end users wit' data rates up to 2 Mb6s, Mb6s, and it lends itself to give individuals individuals t'e freedom to c'oose among a wide range of services currently in e)istence or soon to e)ist/

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n Evolution to IMT-200 0/3G -2000 /3G IMT&)*** Capable Sy!em! -SM

-PRS

+D-+

PDC .-

CDMA )*** CDMA 4ne TDMA /IS&0.12

TDMA3 -PRS

TDMA3 +D-+ +,i!in# !pe"r$m

Ne% !pe"r$m

Today )-

)*** evolved )-

.-

78/2 (bps

9:;771 (bps

771; > muc' greater t'an bit rate =Ri  7 6 $i>/ $& $i>/ $'e radio between &'ip rate and information bit rate determines t'e spreading ratio or Spreading 5actor S5C S5C S5 Rc 6 Ri/ Ri/

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n Spread principles $'e spread-spectrum transmission is a uniAue in w'ic' t'e users srcinal signal is transformed into anot'er form t'at occupies a larger bandwidt' t'an t'e srcinal signal would normally need/ $'e bits in t'e spreading code are called c'ips to differentiate t'em from t'e bits in t'e data seAuence, w'ic' are called symbols/ $'e term ?c'ip ?c'[email protected]@ describes 'ow t'e spreading operation c'ops up t'e srcinal data stream into smaller parts or c'ips/ $'e user information bits are spread into a number of c'ips w'en it is [email protected] wit' t'e spreading code/ $'e c'ip rate for t'e system is constant / is t'e ratio between t'e c'ip rate and t'e symbol rate/ rate/ $'is is eAual to t'e spreading processing gain =t'at is t'e protection against interface>/

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n Spread principles $'e same code is used for de-spreading t'e information after it is sent over t'e air interface, t'at is, bot' t'e #E and t'e BS use t'e same codes/ % wideband signal can resist narrowband interface especially well/ +'ile t'e demodulation process will de-spread t'e srcinal signal, signal, it will also spread t'e interfering signal at t'e same time/ If t'ere are too many users in t'e cell generating too muc' interface, t'en t'e signal may get bloc(ed and t'e communication becomes impossible/ +'en information from various subscribers is sent over t'e air, it can be sent at different bit rates depending on w'at service t'e subscribers is using at t'e time =speec', video conferencing>

3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n W$MA Technical characteristics

' M carriers" %requenc& *ivision *uple %**" -"./ Mcps chip rate 0ariable spreadin codes 1ptimied pac2et access on common or dedicated channel" ih spectrum e3cienc& 3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n ATM A!yn"hrono$! Tran!fer Mode /ATM2 is a cell relay, relay, &ircuit switc'ing networ( and data lin( layer protocol w'ic' encodes data traffic into small =1 bytesF :< bytes of data and 1 bytes of 'eader information> fi)ed-si.ed cells/  Bye! ;Header<

87 Bye ;NBAP< ;!i#nal daa< NB%"C Node B application part

. Bye!

ATM provides data lin( layer services t'at run over SONE$ =Sync'ronous Optical Networ(ing> Gayer 7 lin(s/ $'is differs from ot'er tec'nologies based on pac(et-switc'ed networ(s =suc' as t'e Internet "rotocol or Et'ernet>, in w'ic' variable si.ed packets =sometimes (nown as frames> frames> are used/ ATM is aa connection-oriented connection-oriented tec'nology, tec'nology, in w'ic' a logical connection is establis'ed between t'e two endpoints before t'e actual data e)c'ange begins/ 3G Overview

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I n t r o d u c t i o n I n t r o d u c t i o n The Architecture RN

E1” IubATM - ”-

A DM WC

M#

3G Overview

u” “U

R"S

R"S R"SR"SR"S

RN& can control as ma)/ 901 RBSs ?Node [email protected]

Simply the best

N e BO r vi e w Nod od eB Ove ve r vi e w 6 0 2 3

Ant .

S B R

Si te , Co

3G

Ret ASC

6 0 3 2 S B R

6 0 2 3

Co!ie

Node B

PBC 1**

Moderni=ed !ie >ayo$

PBC 1**

S B R

RBS

RBS

T? Cab9

RNC

3G Overview

22

N od e ve r vi e w N od eB BO O ve r vi e w @an

Conne"ion @ield /[email protected] for +0! +,ernal alarm @CU @iler !$bra"5

B$!bar Radio !$bra"5

Di#ial !$bra"5

Spa"e for opional e'$ipmen

N od e ve r vi e w N od eB BO O ve r vi e w RBS 3206

@U "ard "ard

RU "ard "ard Spa"e for any e'$ipmen

3G Overview

CPU "ard

@[email protected] "ard

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N od e ve r vi e w N od eB BO O ve r vi e w

Downlink and Uplink Trafi !RBS 3"#$ Confi#$raion: Vodafone 0 /0002 - &'annel &oding - Spreading

T?B $ransmission Board

Radio S$b Ra"5

@iler S$b Ra"5

Fi l t er su brack Radi o subrack Di gi tal su brack brac k

E76IM% CBU RA?B Radio Modulation H %mpli Random %mplification %ccess Board

E76IM% +T&MC0

nc y 5reAu& e om b i ni n g

0 !e"or

RU

@U

ASC

RU

@U

ASC

RU

@U

ASC

Anenna 0 !e"or

[email protected]

Anenna 0 !e"or

- *amma cable

Di#ial S$b Ra"5

3G Overview

Anenna

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N od e ve r vi e w N od eB BO O ve r vi e w %BU &oard &B# in RBS 2!9C % merge between S&B, *"B, *"B, $#B, $#B, and E$B

SCB Board ATM Switching & Power distribution

Used as individual in the !ld R"S '&1&

TUB Board Data synchronization functionality

T!MC" Board T!MC" Boa rd GPB Board

"s interface# $MA Grou%

Processor functionality

3G Overview

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N od e ve r vi e w N od eB BO O ve r vi e w

"U !ntr!l "ase Unit CBU: A mer#e be%een SCB -PB TUB and +TB Conainin # Conainin# "ower distribution to bac( plane/ "ac(et switc' 2: units in bac( plane/ "ac(et switc' 2: units in bac( plane/ $iming unit for networ( H radio sync' wit' e)tended 'oldover time *"S interface for sync' and positioning/ : ) E7 ports/ Et'ernet interface for site-G%N/ RS:/ Resources for Softer O included/

Power Clocks/BFN TX gamma RX gamma

Support SD"% Release 1 =2 ms $$I>/ + prepared for E-#G Release 9 =7! ms $$I, "ea( rateC rateC 7/:1 7/:1 Mbps Mbps EED&>

ATM

3G Overview

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N od e ve r vi e w N od eB BO O ve r vi e w RU)6 Radio Unit 4nterface 5oard

R!"

[email protected] %n interface board for 9 radio units Conaini n# Conainin#

Data F

$iming distribution to base-band boards and radio units/

Data E

Distribution of up- and and down-lin( down-lin( gamma gamma signals signals between between radio radio

Data D

units and base-band boards/ Board processor for control of si) radio units and si) 5S-

Data C

Data B

modems =&ommunication wit' %S& and RE$>/

Data A

3G Overview

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N od e ve r vi e w N od eB BO O ve r vi e w RU&%&17&%'1 -&carrier $8 % carrier U89 &.%:h/ &1W7'1W0 R#272!627!C Radio #nit 2!+6!+ Conainin # Conainin# $wo transmitters and one D"D M&"% for %o "arrier! D> "ower clipping function One 2 branc' diversity receiver for one "arrier U> D&6D& converter for R# and 5# wit' 7!ms 'old-up for logic parts parts One &"# &"# =J"> =J"> for for control controlof ofR# R# and filter unit =5#> Interface for 5# control and power distribution to 5#/

3G Overview

T"$"ng

CP# A

n g

B

DCDC

TX TX RX

A

RX

B

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N od e ve r vi e w N od eB BO O ve r vi e w 6U%& - % T5 and & R5 antenna branches9 &.%:h/ 0 @U0): A @iler and >NA $ni for %o anenna! Conainin # Conainin# One duple) filter filter for for t'e t'e first first antenna antenna=$J =$Jand andRJ> RJ> One receive filter for t'e second second antenna antenna =RJ =RJ only> One $J port and and four four RJ RJ ports, ports, two twofrom fromeac' eac'antenna antenna *ain ad3ust for feeder compensation and gain select "ower distribution to to %S& %S& and and RE$ =D&6D& and Bias $>

D&D&

5S modem for %S& and RE$ communication

Splitter

"arameter memory =EEprom>

Splitter

&ontrol interface =I2&> =I2&> from from R#/ R#/

3G Overview

$J filter Bias -$ GN%

RJ filter modem

Inerfa"e lo#i"

GN%

RJ filter

Bias -$

EEprom

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N od e ve r vi e w N od eB BO O ve r vi e w !n;gurati!n means t'at a dependent resource missing/ % recourse t'at is reAuired to start or maintain operation of t'e board, is missing/ 5las'ing at medium rate =2 .> means t'at loading or testing in t'e progress/ 5las'ing at a fast rate =79 .> means t'at an initial boot test is being performed/ Off means t'at t'e power is not available/

3G Overview

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S t ep t ep S t epby byS S t ep /

w e i

%le) library installed on t'e lap top/

v r e v O

Ericsson &onnection &able =R"M17 7096!77!!> G%N connection =RL:1-RL:1>/

G 3

&ross &able =RL:1-RL:1>/

w e i v r e v O

RL:1 Serial =RS-22> converter =optional>/ #SB serial =RS-22> converter =optional>/ RL:1 E7 loop cable =Be fabricated>/

G 3

3G Overview

17

"est

Ayman A. Halim9

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