Node b Outdoor

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Prashant Mathur Node B 3G RBS (Outdoor) Overview 2009-12-31

3G node-b RBS(Outdoor)

Overview




RBS 3201RBS 3201

!he RBS !he RBS 32013201 is an outdoor "a#rois an outdoor "a#ro

#abinet and a "e"ber o$ the RBS#abinet and a "e"ber o$ the RBS

30003000 $a"i%&'$a"i%&'

t has u to three se#tors and u tot has u to three se#tors and u to

two #arriers er se#tortwo #arriers er se#tor''



RBS 3201

Cabinet View




The RBS 3201 Macro outdoor comprises the following hardware:

A :Climate Unit C!U"

B:#$ternal %larm Module &%!M" optional"C:Base'and BB" su'rac( and fan unit

The BB su'rac( t)picall) consists of the following

components:

Base'and *nterface BB*+" 'oard

#$change Terminal #T" 'oard

,eneral -urpose -rocessor Board ,-B"

Random %ccess Recei.er R%&" 'oard

Switch Core Board SCB"

Timing Unit Board TUB"

Transmitter T&" 'oard

D:-ower Su'rac( includes -SU and -CU" and fan unit

E:Smo(e /etector optional"

F:*nternal /istri'ution ModuleBatter) +use Unit */MB+U"G:Radio +reuenc) R+" su'rac( and fan unit

The R+ su'rac( t)picall) consists of the following components:

%ntenna *nterface Unit %*U"

Radio +reuenc) *nterface R+*+" 'oard

Switch Core Board SCB"

Transcei.er TR&" 'oard

/umm) Boar

H:%C Connection Unit %CCU" /istri'ution Unit with Ser.ice utlet"

J: Space for optional site transmission euipment

K:C+3 optional"

L:/istri'ution +rame /+" M:-ower Connection Unit

N:%u$iliar) /istri'ution Module %/M" optional"

P:R+ Connection Bo$

Q:Batteries optional"

R:Multicarrier -ower %mplifier MC-%" Su'rac( and fan unit

The MC-% su'rac( t)picall) consists of the following components:

MC-%

MC-% hu'

/umm) MC-%

S:oise hood optional"




Standad Hadwae !nit"

A# C!

The Climate Unit C!U" can either 'e a Com'ined C!U or a 4eat #$changer

4#" C!U5 depending on the operation temperature6

B# $ALM

The #$ternal %larm Module &%!M" handles the customer specific alarms as

well as predefined alarms for #ricsson euipment

C# Ba"eband S%ba&'

Base'and BB" Su'rac( functionalit) handles dedicated and common channels toUser #uipment U#"6

The BB su'rac( comprises an interface for connection to a Radio etwor( Controller

RC"5 a Main -rocessor M-" cluster and the e$ternal %s)nchronous Transfer Mode

%TM" interface termination as well as all functionalit) in the 'ase'and domain

e$cept for a.erage output power limiter5 power clipping5 dela) and gain ad7ustment

which are all located in the R+ su'rac("6

()e Ba"eband *nte+a&e b,ad

The Base'and *nterface BB*+" 'oard connects the BB su'rac( to the R+

su'rac(6 The connection carries the downlin( and uplin( traffic streams

as well as timing signals6




E( b,ad

The #$change Terminal #T" 'oard ser.es as an interface 'etween the transmission

ca'les and the %TM switch on an Switch Core Board SCB"6 The #T 'oard pro.ides

the connections for the *u' *nterface 'etween RBS and RC" and remote Mu'

management interface" interfaces 6The t)pe of #T 'oard depends on the transmission standard 8

um'er of units: 0 9 2 #T9M1"5 0 9 1 #T9M"5 0 9 1#T9MC1s"5 0 9 2 #T9MC1"5

0 9 2 #T9M3"5 0 9 1 #T9-S;"6

GPB

The ,eneral -urpose -rocessor Board ,-B" operates as an M-5 it contains and

e$ecutes the main part of the RBS software6 The ,-B controls de.ices on 'oardsand in au$iliar) units6 *t has flash memor)5 an #thernet connection and an RS232

interface6

The ,-B can 'e duplicated to pro.ide redundanc)6 Upon failure in the acti.e M-5

the other ,-B starts and ta(es o.er as M-6

RA$ b,ad

The Random %ccess and Recei.er R%&" 'oard comprises the BB R& part5 mainl)ta(ing care of the following:

Cell com'ination for softer hand o.er 5

/ecoding 5

/edicated and random access transport channels

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R%& 'oards within a BB su'rac( share the load to achie.e high a.aila'ilit)6 *f one

R%& 'oard fails5 the load is di.ided o.er the remaining R%& 'oards6 This

ensures the RBS continues to handle traffic5 although with reduced capacit)6

um'er of units: 1 8 <

SCBThe Switch Core Board SCB" contains an %TM switch and is connected to the

%TM switch ports located on other 'oards5 through the 'ac(plane6 %n SCB can

also 'e connected with up to four other SCBs located in other su'rac(s5 and to the

R+ su'rac( for %TM switching parts6

The s)stem power is distri'uted to the su'rac( 'ac(plane through the SCB6 The

SCB contains a power filter function for s)stem power6 The SCB also super.ises5 controls and pro.ides power to the su'rac( fans6

The SCB can 'e duplicated to pro.ide redundanc)6 *f one SCB stops wor(ing5 the

other ta(es o.er the traffic6 The first slot and the last slot in the BB and R+ su'rac(

are reser.ed for SCBs normall)"6

um'er of units: 2 or

(!BThe Timing Unit Board TUB" generates and distri'utes a reference signal for

local timing generation6 The freuenc) accurac) is gi.en ') an e$ternal

reference signal5 either pro.ided on a transmission interface or a local

e$ternal source5 for e$ample ,-S6 The TUB can 'e duplicated to

pro.ide redundanc)6



($ b,ad

The Transmitter T&" 'oard are a.aila'le with different C# and 4S capacities6

The RBS ma) 'e configured to pro.ide 4igh9Speed /ownlin( -ac(et %ccess

4S/-%"5 using 4S/-% capa'le T& 'oards6

The T& 'oard comprises the BB T& part5 ta(ing care of the following:Cell splitting

Channel com'ining

#ncoding

4andling transport channels

Modulation and spreading

um'er of units: 1 8 2

D# P,we S%ba&'

The -ower Control Unit -CU" and -ower Suppl) Units -SUs" are located in

the power su'rac( 6

PC!The -CU connects and translates signals from the -SUs5 the */MB+U5 the %CCU

5 and the C!U5 and transfers them to the M- ,-B" for control and super.ision6

The -CU also super.ises5 controls5 and pro.ides power to the power su'rac( fan

um'er of units: 1



PS!

The -SU con.erts and rectifies the incoming power from the %CCU to 9= > /C

s)stem .oltage6 The -SU distri'utes the con.erted power to the */MB+U for

distri'ution to other su'rac(s6

um'er of units: 3 8 ?

E# S-,'e dete&t,

The smo(e detector generates an alarm if smo(e is detected or the temperature

is a'o.e @3AC inside the RBS6 %n &%!M is reuired for this function

F# *DM.BF!

The *nternal /istri'ution ModuleBatter) +use Unit */MB+U" handles the internal

/C distri'ution and is the connection point 'etween the power distri'utors

-SUs and 'atteries" and power consuming units6 The */MB+U is euipped with

a main distri'ution 'ranch with fuses and a contactor for connection to the 'atteries6

um'er of units: 1



G# RF "%ba&'

The Radio +reuenc) R+" Su'rac( contains most of the R+ processing

hardware6 *t does not contain the power amplifiers and optional %ntenna S)stem

Control %SC"6The R+ su'rac( ta(es care of the following:

/% and %/ con.ersion

R+ modulation and demodulation

R+ carrier com'ining and splitting

!ow noise amplification for reception

The following sections gi.e a 'rief description of the 'oards in the R+ su'rac(6

A*!

The %ntenna *nterface %*U" Unit consists of a filter and control unit5 as well as a

com'iner and splitter unit6

The filter and control unit provides the following:

/uple$ filtering of the T& and R& signal

+le$i'le freuenc) and signal splitting!ow9noise amplification of the R& signal

-ower measurement of T& signal

The combiner and splitter unit performs the following:

+reuenc) com'ination in the downlin(5

Signal splitting and high power com'ination when two MC-% modules

are used



RF*F B,ad

The Radio +reuenc) *nterface R+*+" 'oard connects the R+ su'rac( to the BB

su'rac( and to the MC-% hu'6 The connection carries the downlin( and uplin( traffic5

as well as timing signals6 The R+*+ 'oard also implements power clipping for

downlin( traffic6

(R$ b,ad

The Transcei.er TR&" 'oard pro.ides the following:

%/ and /% con.ersion

Channel filtering

/ela) and gain ad7ustment

R+ modulation and demodulation % TR& 'oard comprises two independent transcei.ers for two T& and R& signal pairs6

um'er of units: 1 8 @

H# ACC! Di"tib%ti,n !nit /wit) "ei&e ,%tet

The %CCU consists of two parts: the connection unit at the 'ottom center

of the ca'inet and the distri'ution unit in the left part of the ca'inet6The %C Connection Unit %CCU" recei.es the incoming power and distri'utes it5

through circuit 'rea(ers located in the %CCU5 to the -SUs5 climate

s)stem5 lamp5 smo(e detector and ser.ice outlet6

The %CCU also contains the cold start function5 which is used

when the RBS is started in temperatures 'elow ? AC6



The %CCU then onl) supplies the Climate Control Unit CCU" with power5 and the

heater is turned on6 ;hen the temperature sensor senses that the internal

temperature in the %CCU reaches ? AC5 the rest of the RBS is supplied with power6

The %CCU pro.ides a Surge -rotecti.e /e.ice S-/" against power line

distur'ances affecting the incoming power6

K# CF3

The C+3 is used for the following:

The installation of the /C filter for BBU <?00

%s an interface for optional site transmission euipment

STM91#T9M ca'le gland

L# DF

The /istri'ution +rame /+" contains o.er.oltage protection and connection

fields for transmission6 The /+ is also a connection field for e$ternal alarms #%CU"

that can 'e connected to5 and controlled ')5 the &%!M

M# PC!

The -ower Connection Unit contains the -ower Connection *nterface6



N# ADM

The %u$iliar) /istri'ution Module %/M" distri'utes the /C power ta(en

from the */MB+U to the /C users in the optional site transmission euipment

P# RF C,nne&ti,n B,4The R+ Connection Bo$ is the connection interface for 7umper ca'les

and the earth grounding ca'le

Q# Batteie"

The RBS has an internal 'atter) 'ac(up time of 30 minutes of operation 6

when 31 configuration5 20 ; MC-%5 200 ; transmission"6The four 12 > 'atteries pro.ides 9= > /C6

R# MCPA

The Multicarrier -ower %mplifier MC-%" Su'rac( contains the linear power

amplifiers for the R+ carriers6

The su'rac( contains positions for up to si$ MC-% modules and is connected to theR+ su'rac( through front panel ca'ling

There are two .ersions of MC-%5 the 20 ; and the 30 ; R+ power amplifier6

#ach power amplifier can simultaneousl) amplif) up to four R+ carriers5

') di.iding the power 'etween the carriers6

um'er of units: 1 9 @



MCPA H!B

The MC-% 4u' is the connection interface 'etween the MC-% and the R+*+ 'oard6

um'er of units: 1

S# N,i"e H,,d

The oise 4ood is a soundproofing hood co.er"6



ACRONYMSACRONYMS

33GPP 3rd Generation Partnershi Pro*e#tGPP 3rd Generation Partnershi Pro*e#t+,+, +ntenna nter$a#e ,nit +ntenna nter$a#e ,nit

+S+S +ntenna S&ste" ontro%%er +ntenna S&ste" ontro%%er

+!M+!M +s&n#hronous !rans$er Mode +s&n#hronous !rans$er Mode

BB.BB. Baseband nter$a#eBaseband nter$a#e

B/RB/R Bit /rror RateBit /rror RateBPBP Board Pro#essorBoard Pro#essor

B!SB!S Base !rans#eiver Station Base !rans#eiver Station

BN o""on Bondin NetworBN o""on Bondin Networ

ORB+ o""on Ob*e#t Reuest BroerORB+ o""on Ob*e#t Reuest Broer+r#hite#ture+r#hite#ture

S,S, o"biner and S%itter ,nito"biner and S%itter ,nit

,, aa#itor ,nitaa#itor ,nit

arriernter$eren#earriernter$eren#e



dBdB e#ibe% e#ibe%

dB"dB" e#ibe% re%ative toe#ibe% re%ative to 11 "4"4

!M+!M+ ua% u%e5 !M+ua% u%e5 !M+

66 own-6in own-6in

P7 u%e5P7 u%e5

/1/1 !rans"ission inter$a#e /1 !rans"ission inter$a#e /1

/3/3 !rans"ission inter$a#e /3 !rans"ission inter$a#e /3

/+, /5terna% +%ar" onne#tion ,nit/+, /5terna% +%ar" onne#tion ,nit/M/M /%e#tro"aneti# o"atibi%it& /%e#tro"aneti# o"atibi%it&

/!/! /5#hane !er"ina% /5#hane !er"ina%

.. .reuen#& ivision u%e5 .reuen#& ivision u%e5

8!!P8!!P 8&er !e5t !rans$er Proto#o% 8&er !e5t !rans$er Proto#o%8484 8ardware 8ardware

MM nterna% istribution Modu%e nterna% istribution Modu%e

P nternet Proto#o%P nternet Proto#o%



MP+ Mu%ti arrier Power +"%ierMP+ Mu%ti arrier Power +"%ier

Mt'Mt' Manae"ent Manae"entMM Man Ma#hine nter$a#eMM Man Ma#hine nter$a#e

MP Main Pro#essor %usterMP Main Pro#essor %uster

M!B. Mean !i"e Between .ai%uresM!B. Mean !i"e Between .ai%ures

NMSNMS Networ Manae"ent S&ste"s Networ Manae"ent S&ste"s

O:M Oeration and Maintenan#eO:M Oeration and Maintenan#eOMOM Oeration and Maintenan#e Oeration and Maintenan#e

entreentre

PS, Power Su%& ,nitPS, Power Su%& ,nit

P,P, Power ontro% ,nit Power ontro% ,nitR+NR+N Radio +##ess Networ Radio +##ess Networ

R+NOS Radio +##ess Networ Oeration SuortR+NOS Radio +##ess Networ Oeration Suort


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