OWJ100103 WCDMA Base Station System Planning
-
Upload
anonymous-lytetp -
Category
Documents
-
view
34 -
download
0
description
Transcript of OWJ100103 WCDMA Base Station System Planning
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 1/123
ISSUEISSUE
WCDMA Base StationWCDMA Base Station
System PlanningSystem Planning1.01.0
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 2/123
机密,未经许可不得扩散 文档密级:内部公开
Course Objective
Know the notes for the co-existence of
multiple systems.
Familarize the principles for BS site
selection.Familarize the principles for antenna
selection and installation.
Know the causes of call breathing and pilot
polution and the related solutions.Know the evolution and capacity expandion
of the network.
After this session, you will:
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 3/123
机密,未经许可不得扩散 文档密级:内部公开
Contents of Course
raining.huawei.com
Chapter 1 Multi-system Coexistence Planning
Chapter 2 BS Site Selection
Chapter 3 Antenna ee!er Syste" #esi$n
Chapter % &ilot &ollution an! Cell Breathin$
Chapter ' (etwor) E*olution an! Capacity
E+pansion Sche"e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 4/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Inter-system Interference1 Inter-system Interference
2 Intersyste" Isolation -euire"ents
3 2/3/ Colocate! Site
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 5/123
机密,未经许可不得扩散 文档密级:内部公开
Inter-system Interference Spurious ra!iationSpurious ra!iation !he spurious noise generated during the
modulation and the non-linear noise generated during thetransmission.
Inter"o!ulation pro!uctInter"o!ulation pro!uct !"nter-modulation caused by
harmonic wave and parasitic wave.
#ctive$ he non-linear part of the active component. "t
can be filtered out by the device.
%assive$ he non-linear part of the passive component.
"t cannot be filtered out by the device.
-ecei*er loc)-ecei*er loc) !&aused by the carrier power of a differentsystem.
ther EC prole"sther EC prole"s ! Feeder' antenna' transimtter' and
receiver.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 6/123
机密,未经许可不得扩散 文档密级:内部公开
Inter-system Interference
4ey points4ey points
Interference of the !ownstrea" spurious noise on the 5C#A BS
Interference of the 6#SC#A upstrea" si$nal on the 5C#A BS
Colocate! BS of 5C#A an! /SColocate! BS of 5C#A an! /S
Effecti*ely control the "utual interference of 5C#A an! /S
syste"s
a)e full use of the le$acy resources
Interference prole" with the !eploy"ent of 5C#A networ)
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 7/123 机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Intersyste" Interference1 Intersyste" Interference
2 Inter-system Isolation Requirements
3 2/3/ Colocate! Site
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 8/123 机密,未经许可不得扩散 文档密级:内部公开
Isolation Requirements
or e+a"ple:or e+a"ple: "f the transmit power of a ()S BS is *+ dBm' the block of
the BS can be avoided only when the acceptable maximum inbandinterference level is -, dBm.
/S 700 /S 1800 U6S
-ecei*e an! 9U; /0 1 /, )2z ,3,0 1 ,3 )2z ,/40 1 ,/0 )2z
6rans"it an! 9#; /+ 1 /50 )2z ,0 1 ,0 )2z 4,,0 1 4,30 )2z
6&S,00 7x6&S,00 7x 6&S,00 x6&S,00 x 8&6)# 7x8&6)# 7x 8&6)# x8&6)# x
1<10h=1<10h= 1<8'h=1<8'h= 180'h=180'h= 1880h=1880h= 1720h=1720h= 1780h=1780h= 2110h=2110h= 21<0h=21<0h=
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 9/123 机密,未经许可不得扩散 文档密级:内部公开
ypical Isolation Requirements
-euire! Isolation
Ite"
/S 700 /S 1800to U6S
-+
U6S 6+ to/S 700
-+
U6S 6+ to/S 1800
-+
U6S 6+to U6S
-+
Bloc) isolation dB *0 dB * dB 5+ dB
SpuriousnoiseInter"o!ulation
pro!uct
+/ dB +* dB +* dB +/ dB
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 10/123 机密,未经许可不得扩散 文档密级:内部公开
Isolation Measures
Isolation are $uarantee! in !ifferent ways
!uple+er !uple+er
filter filter
1.1. Antenna selection an!Antenna selection an!
antenna location !esi$nantenna location !esi$n
2. ilterin$ out interference2. ilterin$ out interference
si$nal throu$h a filter si$nal throu$h a filter
3. In case of colocate! fee!er, usin$3. In case of colocate! fee!er, usin$
!uple+ertriple+er > roa!an! antenna!uple+ertriple+er > roa!an! antenna
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 11/123 机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Intersyste" Interference1 Intersyste" Interference
2 Intersyste" Isolation -euire"ents
3 2G/3G Co-locate !ite
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 12/123 机密,未经许可不得扩散 文档密级:内部公开
!"#$" Co-locate% &ite
6he /S an! C#A site resources in the le$acy syste"6he /S an! C#A site resources in the le$acy syste"
shoul! e fully reference! an! use! in the 3/ networ).shoul! e fully reference! an! use! in the 3/ networ).
Site colocation helps to re!uce the nu"er of sites an!
"a)e full use of resources such as euip"ent, tower, an!
rooftop, thus re!ucin$ site cost an! i"pro*in$ the
!eploy"ent efficiency of 3/ networ).
Site colocation "ini"i=es the intersyste" interference an!
"a)es the interference controllale.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 13/123 机密,未经许可不得扩散 文档密级:内部公开
!"#$" Co-locate% &iteShare! ite"s: euip"ent roo", tower, antenna,
fee!er, trans"ission euip"ent, power supplyan! stora$e attery, air con!itioner, an! so on.
Bias6 Bias6
#iple+er #iple+er
3 ? A
3 ? A
Bias6
Bias6
8&6)#9odeB
:S)
BS
Iu
AisIu
6oro"BSC-(C
#iple+er
#iple+er
&wr
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 14/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Intersyste" Interference1 Intersyste" Interference
2 Intersyste" Isolation -euire"ents
3 2G/3G Co-locate !ite
Co-locate "o#er$ %ntenna Pole$Co-locate "o#er$ %ntenna Pole$
an Rooftopan Rooftop
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 15/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% o'er( )ntenna Pole( an% Rooftop
If the 5C#A an! /S700#CS1800 share the tower,
antenna, or rooftop, the "a@or prole" lies in the inter
syste" interference.
6he interference inclu!es the interference of the 5C#A on
/S700#CS1800 an! that of the /S700#SC1800 on
5C#A.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 16/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% o'er( )ntenna Pole( an% Rooftop
Interference in case of colocate! tower,Interference in case of colocate! tower,
antenna pole, an! rooftopantenna pole, an! rooftop
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 17/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% o'er( )ntenna Pole( an% Rooftop
Isolation reuire"ents for !ifferent interferenceIsolation reuire"ents for !ifferent interference$
he interference of the :S);6&S on the 8&6)# re<uires special
attention in the anti-interference solution.
-euire! isolation
Ite"
/S 700 /S 1800to U6S
-+
U6S 6+ to/S 700
-+
U6S 6+ to/S 1800
-+
U6S 6+to U6S
-+
Bloc) isolation dB *0 dB * dB 5+ dB
SpuriousnoiseInter"o!ulation
pro!uct
+/ dB +* dB +* dB +/ dB
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 18/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Intersyste" Interference1 Intersyste" Interference
2 Intersyste" Isolation -euire"ents
3 2G/3G Co-locate !ite
%&antages of co-feeer %&antages of co-feeer
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 19/123
机密,未经许可不得扩散 文档密级:内部公开
Co-fee%er
A!*anta$es of cofee!er A!*anta$es of cofee!er
he legacy feeder is used' simplified the construction andreduces the cost
"f the antenna isolation does not meet the re<uirement' co-feeder
= multiplexer can be used
#isa!*anta$es of cofee!er #isa!*anta$es of cofee!er he multiplexing filters of the new system are connected with
those of the legacy system' which somewhat affects the legacy
network.
"t is impossible to implement inter-system isolation through
antenna isolation. "f the re<uirement on the inter-system isolation
is high' additional filters are needed between the multiplexing
filter and the BS.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 20/123
机密,未经许可不得扩散 文档密级:内部公开
Implementation of Co-fee%er
Isolation '0!B Isolation '0!B
Colocate! fee!er of 5C#A an! /S7000
8&6)#:S)
)#
:S) 8&6)#
6uplex filter >#?&ombinable
&olocated feeder
8&6)#:S)
:S) 8&6)#
@ptional)#
6uplex filter >#?
6uplex filter >#?
&olocated feeder
Filter >#?
6uplex filter >#?
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 21/123
机密,未经许可不得扩散 文档密级:内部公开
Co-transmissionCo-transmission
At the early sta$e of 5C#A construction, /S pro*i!esAt the early sta$e of 5C#A construction, /S pro*i!es
E1S#? 9Iu interface; trans"ission resources for the 5C#A.E1S#? 9Iu interface; trans"ission resources for the 5C#A.
BSBS
9odeB9odeB
A,;S62>"ub?
(+%)ps(+%)ps
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 22/123
机密,未经许可不得扩散 文档密级:内部公开
9odeB
Co-transmissionCo-transmission
At the "ature sta$e of the 5C#A construction, the reuire!At the "ature sta$e of the 5C#A construction, the reuire!
capacity of the 5C#A syste" is hi$h, an! the 5C#A cancapacity of the 5C#A syste" is hi$h, an! the 5C#A can
pro*i!e trans"ission channels for the /S.pro*i!e trans"ission channels for the /S.
BS
A,;S62>"ub?
E1E1
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 23/123
机密,未经许可不得扩散 文档密级:内部公开
Co-transmission &olution of *ua'ei
Cotrans"ission solution for 3/ an! 2/ BSs of ?uawei:Cotrans"ission solution for 3/ an! 2/ BSs of ?uawei:
In case of colocate! trans"ission, the s"allest allocale
unit can an E1 lin) or so"e ti"eslots of an E1 lin).
Currently, (o!eB can !i*i!e one 2ps E1 lin) into se*eral
%)ps ti"eslots for allocation, re$ar!less of the
trans"ission "o!e of the trans"ission euip"ent.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 24/123
机密,未经许可不得扩散 文档密级:内部公开
Co-transmission &olution of *ua'ei
ractional A6ractional A6
9odeB
BSBS&
79&
A,;S)-, S)-,;S)-*
A,;S)-,S)-,;A,6rans"ission6rans"ission
networ)networ)
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 25/123
机密,未经许可不得扩散 文档密级:内部公开
Co-transmission &olution of *ua'ei
CESCES 方式方式
BS
9odeB79&
BS&
A,;S)-, S)-,;S)-*
A,A,6rans"ission6rans"ission
networ)networ)
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 26/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 1 Multi-system Coexistence Planning
1 Intersyste" Interference1 Intersyste" Interference
2 Intersyste" Isolation -euire"ents
3 2G/3G Co-locate !ite
'thers'thers
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 27/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% )uxiliary +quipment Euip"ent roo"Euip"ent roo"
6he (o!eB is confi$ure! with only one cainet, so only a little space
is reuire!.
6he (o!eB is hea*y, so the earin$ capacity of the euip"ent roo"
shall e consi!ere!.
&ower supply syste"&ower supply syste"
6he 3/ BS can use the le$acy #C power an! stora$e atteries in the
euip"ent roo", ut it is necessary to consi!er whether to e+pan!
the capacity y a!!in$ #C power "o!ules an! atteries.
/roun!in$ syste"/roun!in$ syste"
6he $roun!in$ reuire"ent of the 3/ BS is si"ilar to that of the BS
of any other wireless syste". In case of colocate! site, the le$acy
$roun!in$ syste" can e use!. If necessary, $roun!in$ ars can e
a!!e!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 28/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% )uxiliary +quipment
Cale rac) 9trou$h;Cale rac) 9trou$h; 6he le$acy in!oor an! out!oor cale rac)s 9trou$hs; are
reco""en!e!. If necessary, cale rac)s 9trou$hs; can e
a!!e!.
Air con!itioner Air con!itioner
6he (o!eB causes "uch heat, so it is necessary to reconsi!er
the capaility of the air con!itioners in case of colocate!
euip"ent roo". If necessary, air con!itioners can e a!!e!
ee!er win!owee!er win!ow
In $eneral, there are 12 holes in the fee!er sealin$ win!ow in
the euip"ent roo". 6hey can e share! y two sets of
syste"s with $eneral capacity confi$uration.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 29/123
机密,未经许可不得扩散 文档密级:内部公开
Co-locate% )uxiliary +quipment
6ower an! o*erhea! stan!6ower an! o*erhea! stan! In $eneral, if the antennas are to e installe! on a tower or
o*erhea! stan! on the rooftop, the le$acy tower or o*erhea!
stan! can e share!. In this case, it is not necessary to a!!
new tower or o*erhea! stan!.
Antenna poleAntenna pole
If the le$acy antenna pole is lon$ enou$h, it can e share!.
?owe*er, the reuire"ent on the intersyste" hori=ontal
isolation shall e "eet.
In $eneral, only one antenna can e installe! on a pole. In this
case, a!!itional poles are nee!e!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 30/123
机密,未经许可不得扩散 文档密级:内部公开
,uestions
1. 5hat is the )ey interference on the 5C#A2. 5hat is the reuire! isolation etween U6S
an! /S1800
3. 5hat euip"ent can e share! in case of
coloate! site
%. 5hat are the !isa!*anta$es of the colocate!
fee!er
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 31/123
机密,未经许可不得扩散 文档密级:内部公开
&ummary of the Chapter
6his chapter e+plains the notes for coe+istance of
"ultiple syste"s, inclu!in$ "a@or interference,
isolation reuire"ent, colocate! site, an! so on.6his chapter also intro!uces the colocate! site
solution of ?uawei.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 32/123
机密,未经许可不得扩散 文档密级:内部公开
Contents of Course
raining.huawei.com
Chapter 1 ultisyste" Coe+istence &lannin$
Chapter 2 (! !ite !election
Chapter 3 Antenna ee!er Syste" #esi$n
Chapter % &ilot &ollution an! Cell Breathin$
Chapter ' (etwor) E*olution an! Capacity
E+pansion Sche"e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 33/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
11 Common Pro)lems #ith !iteCommon Pro)lems #ith !ite
!election!election
2 &rinciples for Site Selection
3 Site Selection
% Usin$ e$acy Site
' Site Sur*ey /ui!e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 34/123
机密,未经许可不得扩散 文档密级:内部公开
*o' to +valuate a Can%i%ate &ite.
5ireless5ireless
en*iron"enten*iron"ent
6rans"ission6rans"ission
resourcesresources
&lannin$ result&lannin$ result
&ower supply&ower supply
En$ineerin$ feasiilityEn$ineerin$ feasiility
Ele"ents for e*aluatin$ a can!i!ate siteEle"ents for e*aluatin$ a can!i!ate site
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 35/123
机密,未经许可不得扩散 文档密级:内部公开
/ireless +nvironment
6he - en$ineer shall chec) the followin$ on each6he - en$ineer shall chec) the followin$ on each
can!i!ate site an! the neary sites:can!i!ate site an! the neary sites:
#oes the
can!i!ate site
well co*er the
tar$et area
#oes the
can!i!ate site
well co*er the
tar$et area
Is there any -
interference
on thecan!i!ate
site
Is there any -
interference
on thecan!i!ate
site
Is there any
aparent arrier
foun! in the
panora"ic
photo$raph or the
relate! paper "ap
Is there any
aparent arrier
foun! in the
panora"ic
photo$raph or therelate! paper "ap
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 36/123
机密,未经许可不得扩散 文档密级:内部公开
ransmission Resources
6he selection of a can!i!ate site is often affecte! y6he selection of a can!i!ate site is often affecte! y
the trans"ission plannin$.the trans"ission plannin$.
Is the optical fier
or E1trans"ission
a*ailale
Is the optical fier
or E1trans"ission
a*ailale Is any lineof
si$ht lin) to
the "icrowa*e
no!e
a*ailale
Is any lineof
si$ht lin) to
the "icrowa*e
no!e
a*ailale
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 37/123
机密,未经许可不得扩散 文档密级:内部公开
+ngineering 0easibility
6he new site shall facilitate the use of *ehicle an!6he new site shall facilitate the use of *ehicle an!
liftin$ euip"ent.liftin$ euip"ent.
A helicopter can e use!, ut it is e+pensi*e an! not
easily a*ailale.
-euire"ents on the uil!in$-euire"ents on the uil!in$
A safe an! con*enient passa$e to the rooftop is
a*ailale.
6he "o*in$ of the euip"ent to the euip"ent roo"
throu$h a lift or a $oo!s ele*ator in the uil!in$ shalll
e facilitate!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 38/123
机密,未经许可不得扩散 文档密级:内部公开
Po'er &upply
&roper power supply shall e a*ailale at the site.&roper power supply shall e a*ailale at the site.
If proper power supply is not a*ailale at the site, it shall e
a*ailale neary.
Calculation of Site &ower Calculation of Site &ower
6he total power consu"ption of the "ain euip"ent an!
au+iliary euip"ent shall e consi!ere!.
5hether the power supply reuire"ent can e "et shall e
e*aluate! accor!in$ to the total power consu"ption.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 39/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
1 Co""on &role"s with Site1 Co""on &role"s with Site
SelectionSelection
2 Principles for !ite !election
3 Site Selection
% Usin$ e$acy Site
' Site Sur*ey /ui!e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 40/123
机密,未经许可不得扩散 文档密级:内部公开
a% "&M &ite
Ba! /S site falls in two types:Ba! /S site falls in two types:
6oo low site, which offers a6oo low site, which offers a
s"all co*era$es"all co*era$e
A too low site can only ear
low traffic, an! it is har! to
recoup the in*est"ent.
6oo low site 6oo hi$h site6oo hi$h site
6oo hi$h site, which results in6oo hi$h site, which results in
se*ere cross co*era$ese*ere cross co*era$e
A too hi$h site causes local
interference an! affects the
networ) perfor"ance.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 41/123
机密,未经许可不得扩散 文档密级:内部公开
a% M& &ite
U6SU6S
If the site is too low, it is har! to recoup the
in*est"ent.
If the site is too low, the co*era$e of a nei$hor
BS will shrin) an! the capacity will e lowere!.
6he uality of a site !epen!s on:
Site selectionSite selection
Antenna hei$htAntenna hei$ht
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 42/123
机密,未经许可不得扩散 文档密级:内部公开
Principles for &ite &election
@ecti*e@ecti*e D Selectin$ a site that co*ers the tar$et area
an! has the lowest possile interference ra!iation
6he selecte! site shall e possily closest to the traffic
hotspot.
6he antenna hei$ht !epen!s on the type of the area
where the site is locate!.
6he )ey point lies in the control of the interference
ra!iation.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 43/123
机密,未经许可不得扩散 文档密级:内部公开
&ite &election in *igh-%ensity rban )rea
&rinciples for antenna installation in hi$h!ensity uran&rinciples for antenna installation in hi$h!ensity uran
areaarea
6he antenna shall e lower than the a*era$e uil!in$
hei$ht in the area.
6he antenna shall e installe! at the e!$e of a uil!in$.
(o lineofsi$ht lin) shall e+ist in the "ost portion of the(o lineofsi$ht lin) shall e+ist in the "ost portion of the
area co*ere! y the BS.area co*ere! y the BS.
6he antenna shall not e loc)e! y any neary uil!in$.6he antenna shall not e loc)e! y any neary uil!in$.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 44/123
机密,未经许可不得扩散 文档密级:内部公开
&ite &election in rban )rea
&rinciples for antenna installation in uran area&rinciples for antenna installation in uran area
6he antenna shall e sli$htly hi$her than the a*era$e
uil!in$ hei$ht in the area.
ineofsi$ht lin)s "ay e+ist in the "ost portion of theineofsi$ht lin)s "ay e+ist in the "ost portion of thearea co*ere! y the BSarea co*ere! y the BS
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 45/123
机密,未经许可不得扩散 文档密级:内部公开
&ite &election in &uburb
&rinciples for antenna installation in low!ensity area&rinciples for antenna installation in low!ensity area
6he antenna shall e '"D10" hi$her than the a*era$e
uil!in$ hei$ht in the area
ineofsi$ht lin)s shall e a*ailale in the "ost portion
of the area co*ere! y the BS.
nly so"e lineofsi$ht lin)s cross the cell or!er.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 46/123
机密,未经许可不得扩散 文档密级:内部公开
&ite &election in Rural )rea or on Roa%
&rinciples for site selection in rural area or on roa!&rinciples for site selection in rural area or on roa!
6he antenna shall e 10"20" hi$her than the a*era$e
uil!in$ hei$ht in the area.
/oo! lineofsi$ht lin)s are a*ailale in each !irection.
If the site is close to a town, the a=i"uth an! tilt an$leIf the site is close to a town, the a=i"uth an! tilt an$le
of the antenna shall e a!@uste! to control theof the antenna shall e a!@uste! to control the
interference effecti*ely.interference effecti*ely.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 47/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
1 Co""on &role"s with Site1 Co""on &role"s with Site
SelectionSelection
2 &rinciples for Site Selection
3 !ite !election
% Usin$ e$acy Site
' Site Sur*ey /ui!e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 48/123
机密,未经许可不得扩散 文档密级:内部公开
"eneral Process for &ite &election /eneral process for site/eneral process for site
selectionselection 1.6he networ) plannin$ en$ineer
$enerates a list of i!eal sites.
2. 6he sur*ey en$ineer "a)es
selection an! sur*ey accor!in$ to
the planne! sites.
3. or a co"ple+ area, "a)e a
propa$ation test to chec) whether
the co*era$e reuire"ent is "et
%. After the site is selecte!, contact
the property owner or lan!owner to
chec) whether the site space can
e purchase! or lease!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 49/123
机密,未经许可不得扩散 文档密级:内部公开
&pecific Principles for &ite &election
Specific principles for site selectionSpecific principles for site selection
1%6he sites shall e lai! out accor!in$ to the "esh, with the
allowe! !e*iation not lar$er than 1% of the BS ra!ius.
6he le$acy sites are preferre! if the BS layout is not affecte!.
In $eneral, a site shall not e on a "ountain with hi$h latitu!e
esi!e a city or in a suur.
6he new site shoul! e at a safe place with con*enient traffic
an! AC "ains an! co*ers little fertile lan!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 50/123
机密,未经许可不得扩散 文档密级:内部公开
&pecific Principles for &ite &election
Specific principles for site selectionSpecific principles for site selection
6he site shall not e uilt esi!e a roa!castin$station, ra!ar station, or other interference source.
6he new site shall e far away fro" a hurst in or!er
to a*oi! fast attenuation of the recei*e! si$nal.
In selectin$ a site in a "ountainous area, la)e
country, fleet, or uil!in$ with lar$escale $lass
curtain wall, the effect of si$nal reflection shall e
consi!ere!.
In selectin$ a site in a store! uil!in$, the networ)
hierarchy can e !i*i!e! accor!in$ to the the hei$ht
!ifference of the uil!in$.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 51/123
机密,未经许可不得扩散 文档密级:内部公开
&pecific Principles for &ite &election
Specific principles for site selectionSpecific principles for site selection
At the early sta$e of the networ) construction, thei"portant areas shall e pro*i!e! with $oo!
co*era$e.
6he cell e!$e shall not e within the hi$h!ensity
area. 6he first resnel re$ion of the antenna shall not e
loc)e!.
6he coor!ination with the le$acy sites shall e
consi!ere!.
6he lon$ter" plan shall e consi!ere!.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 52/123
机密,未经许可不得扩散 文档密级:内部公开
nreasonable &ite 2ayout
1. 5ea) si$nal area an! lin!1. 5ea) si$nal area an! lin!
si$nal areasi$nal area
6oo lar$e !istance
etween sites
Syste" o*erloa!
Barrier
ac) of in!oor co*era$e
Unreasonale cell layout $reatly affects the perfor"anceUnreasonale cell layout $reatly affects the perfor"ance
of the 5C#A networ).of the 5C#A networ).
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 53/123
机密,未经许可不得扩散 文档密级:内部公开
nreasonable &ite 2ayout22、、 ar$e o*erlappin$ areaar$e o*erlappin$ area
6here are a lar$e nu"er of BSs, ut the
!istance etween the BSs is short, an!
the !ownstrea" power is i"properly
allocate!
6he cell co*era$e is not well controlle!
A lar$e o*erlappin$ area "ay result in
the followin$:
! &ilot pollution cause! y stron$ pilots
! ?i$h BE-, or e*en call !rop.
! ?i$h soft han!o*er rate.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 54/123
机密,未经许可不得扩散 文档密级:内部公开
nreasonable &ite 2ayout33、、 Cross co*era$eCross co*era$e
If a site is uilt on a "ountain in an uran area or suur or
on a too hi$h uil!in$, an! the cell si$nal is not well
controlle!, cross co*era$e "ay occur.
After the site an! the central lo of the antenna are
!eter"ine!, if the cell !irection is the sa"e as that of a
$roun! o@ect with wa*e$ui!e effect 9for e+a"ple, street orri*er;, cross co*era$e "ay also occur .
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 55/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
1 Co""on &role"s with Site1 Co""on &role"s with Site
SelectionSelection
2 &rinciples for Site Selection
3 Site Selection
* +sing ,egacy !ite
' Site Sur*ey /ui!e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 56/123
机密,未经许可不得扩散 文档密级:内部公开
se of 2egacy &ites
ost of the U6S networ)s coe+ist with the le$acy /S networ).
any /S sites are ase! on le$acy analo$ cells.
6he analo$ cellular networ) was initially uilt to pro*i!e the possily
lar$est co*era$e, an! the syste" capacity is not consi!ere!, so
"any hi$h sites were uilt. 6hese hi$h sites are still in use, thou$h they cause prole"s with
the lar$ecapacity networ)s.
6he ni$ht"are sites still e+ist in "ost of the cellular networ)s.
In !eployin$ U6S sites ase! on the le$acy networ)s, )eepin$
away fro" these ni$ht"are sites are critical.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 57/123
机密,未经许可不得扩散 文档密级:内部公开
&ite Co-location 'ith Other Operators 314
A!*anta$esA!*anta$es
Fointly payin$ the siteFointly payin$ the site
construction feeconstruction fee
Easy to $et the license to siteEasy to $et the license to site
constructionconstruction
Easy to $et power supplyEasy to $et power supply
Easy en$ineerin$ constructionEasy en$ineerin$ construction
Easy to $et trans"issionEasy to $et trans"ission
resourcesresources
&i C i i O O 3!4
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 58/123
机密,未经许可不得扩散 文档密级:内部公开
&ite Co-location 'ith Other Operators 3!4
#isa!*anta$es#isa!*anta$es
6he share! site is not
e+clusi*ely !esi$ne! for your
plannin$, so it is possile that it
!oes not offer an i!eal co*era$e.
Interference "ay e+ist.
6he win! resistance an!
stren$th of the rooftop shall e
consi!ere!.
6he antenna location "ay e not
i!eal.
Ch ! & &i & l i
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 59/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
1 Co""on &role"s with Site1 Co""on &role"s with Site
SelectionSelection
2 &rinciples for Site Selection
3 Site Selection
% Usin$ e$acy Site
!ite !ur&ey Guie
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 60/123
机密,未经许可不得扩散 文档密级:内部公开
Meaning of &ite &urveySite sur*ey is one of the )ey tas)s of the networ)Site sur*ey is one of the )ey tas)s of the networ)
constructionconstruction @ecti*es@ecti*es
&ro*i!in$ scientific asis for the networ) plannin$
&ro*i!in$ a !etaile! construction sche"e for the networ)
!eploy"ent to $ui!e euip"ent preparation, en$ineerin$
construction, an! installation an! co""issionin$
6he reasonaleness of the site is relate! to not only the6he reasonaleness of the site is relate! to not only the
co*era$e of the site ut also the co*era$e of theco*era$e of the site ut also the co*era$e of the
peripheral sites.peripheral sites.
6he results of the site sur*ey "ay affect the uality an!6he results of the site sur*ey "ay affect the uality an!
s"ooth construction of the whole [email protected]"ooth construction of the whole pro@ect.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 61/123
机密,未经许可不得扩散 文档密级:内部公开
&ite &urvey 0lo'
8ireless
network plan
Site list
4: site 9ew site >prefix$
9ewSite?
@utput Search
7ings
@btain
candidate sites
Site survey
Site
conditions
determined
Site surveyreport
9oise test9oise test
report
Site
re<uirement
met
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 62/123
机密,未经许可不得扩散 文档密级:内部公开
Intro%uction to &ite &urvey
6he sur*ey en$ineer "a)es a !etaile! sur*ey accor!in$6he sur*ey en$ineer "a)es a !etaile! sur*ey accor!in$
to the plan "a!e at the site selection sta$eto the plan "a!e at the site selection sta$e
Sur*ey ite"sSur*ey ite"s
BS location
Euip"ent roo" construction
Antenna selection
Euip"ent installation location
After co"pletin$ the sur*ey, the sur*ey en$ineer su"itsAfter co"pletin$ the sur*ey, the sur*ey en$ineer su"its
a sur*ey report.a sur*ey report.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 63/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter ! & &ite &election
1 Co""on &role"s with Site1 Co""on &role"s with Site
SelectionSelection
2 &rinciples for Site Selection
3 Site Selection
% Usin$ e$acy Site
!ite !ur&ey Guie
preparation preparation
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 64/123
机密,未经许可不得扩散 文档密级:内部公开
"athering Information
a"iliari=e the pro@ect profile, an! collect pro@ect !ata,a"iliari=e the pro@ect profile, an! collect pro@ect !ata,
inclu!in$:inclu!in$:
&ro@ect ac)$roun!
En$ineerin$ !ocu"ent
ocal "ap
BS sur*ey tale
Contracte! confi$uration list
Contract fee!ac) tale
Infor"ation aout the le$acy networ)
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 65/123
机密,未经许可不得扩散 文档密级:内部公开
ools Require%
Before the site sur*ey, "a)e sure that
the followin$ tools are a*ailale: /&S recei*er
#i$ital ca"era
Co"pass
6elescope
aser ran$e fin!er
&ortale co"puter
6ape "easure
ap
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 66/123
机密,未经许可不得扩散 文档密级:内部公开
5etaile% &urvey1. easurin$ the lon$itu!e, latitu!e,1. easurin$ the lon$itu!e, latitu!e,
an! hei$ht of the sitean! hei$ht of the site
Use the /&S recei*er to "easure the
lon$itu!e an! latitu!e of the site.
Use the laser ran$e fin!er to "easure
the relati*e hei$ht an! altitu!e of the
site.
If no laser ran$e fin!er is a*ailale,
use a /&S recei*er to "easure the
hei$ht throu$h air pressure 9the error
!epen!s on the weather;, or esti"ate
the hei$ht accor!in$ to the total
nu"er of steps an! the hei$ht of a
step.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 67/123
机密,未经许可不得扩散 文档密级:内部公开
2. /atherin$ infor"ation aout the antenna installation2. /atherin$ infor"ation aout the antenna installation
platfor" an! aout the antenna syste" of the colocate!platfor" an! aout the antenna syste" of the colocate!
sitesite
#raw the sche"atic !ia$ra" of the antenna installation
platfor", an! "ar) the installation location of all the
euip"ent on the platfor".
/ather the para"eters of the le$acy fee!er syste"s at the co
locate! site.
After the antenna installation location is !eter"ine!, "ar)
the relate! infor"ation 9antenna installation location,
installation "o!e, pole len$th, an! so on; on the sche"atic
!ia$ra".
5etaile% &urvey
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 68/123
机密,未经许可不得扩散 文档密级:内部公开
3. easurin$ the propa$ation en*iron"ent3. easurin$ the propa$ation en*iron"ent
5rite !own the hei$ht of the arrier in each !irection an!
the !istance etween the arrier an! the site.
Chec) whether a fee!er syste" of any other
co""unication euip"ent e+ist neary the site. An! if any,
write it !ownG 5rite !own the location 9represente! y
!irection an! !istance;, an!, trans"it power, hei$ht,
a=i"uth, tilt an$le of the antenna.
Shoot the wireless propa$ation en*iron"ent. ar) the
shoot point an! !irection on each photo$raph, an! two
nei$hor photo$raphs shall so"ewhat o*erlap.
5etaile% &urvey
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 69/123
机密,未经许可不得扩散 文档密级:内部公开
Contents of Couse
raining.huawei.com
Chapter 1 ultisyste" Coe+istence &lannin$
Chapter 2 BS Site Selection
Chapter 3 %ntenna .eeer !ystem esign
Chapter % &ilot &ollution an! Cell Breathin$
Chapter ' (etwor) E*olution an! Capacity
E+pansion Sche"e
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 70/123
机密,未经许可不得扩散 文档密级:内部公开
天馈系统简介
In $eneral, the antennaIn $eneral, the antenna
fee!er syste" refers to thefee!er syste" refers to the
part etween the antennapart etween the antenna
an! the cainet top,an! the cainet top,
inclu!in$ antenna, fee!er,inclu!in$ antenna, fee!er,
@u"per, tower "ounte! @u"per, tower "ounte!
a"plifier 96A;, li$htnin$a"plifier 96A;, li$htnin$
arrester, $roun!in$ clip,arrester, $roun!in$ clip,
fee!er clip, fee!er win!ow,fee!er clip, fee!er win!ow,
an! so on.an! so on.
M)
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 71/123
机密,未经许可不得扩散 文档密级:内部公开
M)
6A 96ower ounte! A"plifier; is installe! on a tower. It is close to the
antenna. In $eneral, the 6A an! the antenna are connecte! throu$h one12H @u"per of 2"3" lon$.
A 6A i"pro*es the sensiti*ity of the syste" an! increases the upstrea"
co*era$e of the syste". It also lowers the trans"it power of an S, re!uces
the interference noise insi!e the syste", an! i"pro*es the call uality.
riplex )#
)# feed
bias tee
ransmitter filter
7eceiver
filter
Bypass
C9#7eceiver
filter
#ntenna
6&
9ote B
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 72/123
机密,未经许可不得扩散 文档密级:内部公开
0ee%er
Co""on fee!er typesCo""on fee!er types:
,;4D、 3;D、 ;*E
&rinciples for fee!er selection&rinciples for fee!er selection
"f the feeder is longer than 0m' a ;*E feeder is re<uired. "f the
feeder is shorter than 0m' a 3; feeder is re<uired. # ,;4E feeder is
used as the Gumper between the antenna and feeder or the one
between the feeder and the BS top.
oss of 2/?= fee!er oss of 2/?= fee!er
ee!er type anufacturer oss 9100";
C6F-0# >3;D? #967A8 5.*5 dB
C6F5-0 >;*D? #967A8 *.33 dB
FSH*-0B >,;4D? ,3.3 dB
Classification of )ntennas
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 73/123
机密,未经许可不得扩散 文档密级:内部公开
Classification of )ntennas
By ra!iation !irectionBy ra!iation !irection
6irectional antenna and omni-antenna
By appearanceBy appearance
%late antenna' mushroom antenna' whip antenna'
and paraboloidal antenna
By polari=ation "o!eBy polari=ation "o!e Single %olarized #ntenna #nd 6ual %olarized #ntenna
) & l i
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 74/123
机密,未经许可不得扩散 文档密级:内部公开
)ntenna ype &election
Uran areaUran areaIn!oor In!oor
SuurSuur
-oa!-oa! -ural area-ural area
Antenna type selection is i"portantAntenna type selection is i"portant
to the networ) uality.to the networ) uality.
Accor!in$ to the terrain or traffic
!istriution, the antenna
en*iron"ent falls into the followin$
types:
Uran area, suur, rural area, roa!,Uran area, suur, rural area, roa!,
in!oor, an! so on.in!oor, an! so on.
) & l i f b )
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 75/123
机密,未经许可不得扩散 文档密级:内部公开
)ntenna &election for rban )rea
#irectional antenna#irectional antenna
%'J !ual polari=ation
?ori=ontal ea" wi!th: 'J
/ain: 1' !Bi
&reset J electrical tilt or 0JD 0Ja!@ustale electrical tilt > 0JD1'J
a!@ustale "echanical tilt
Upper si!eloe suppresion >
null fillin$ ronttoac) ratio: K 2'!B
) t & l ti f & b b
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 76/123
机密,未经许可不得扩散 文档密级:内部公开
)ntenna &election for &uburb
In selectin$ an antenna for a suur, the su$$estionson the antenna selection for uran area or rural area
can e reference!.
An o"ni!irectional antenna is not reco""en!e!, in
or!er to facilitate s"ooth up$ra!e in the future.
In a suur, if the antenna uses a tilt an$le, the tilt
an$le shall e s"all.
) t & l ti f R l )
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 77/123
机密,未经许可不得扩散 文档密级:内部公开
)ntenna &election for Rural )rea
#irectional antenna#irectional antenna
Lertical polari=ation
?ori=ontal ea" wi!th: 70J
/ain: 18 !Bi
(o preset tilt
"ni!irectional antenna"ni!irectional antenna
Lertical polari=ation
/ain: 11 !Bi
(o preset tilt
) t & l ti f R %
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 78/123
机密,未经许可不得扩散 文档密级:内部公开
)ntenna &election for Roa%
#irectional antenna#irectional antenna
2orizontal beam width$ +0IJ gain$ 4, dBi
ertical polarizationJ no preset tilt
8shape! antenna8shape! antenna Bidirectional horizontal beam width$ 30IJ gain$ ,*
dBi
ertical polarizationJ no preset tilt
?eartshape! antenna?eartshape! antenna
2orizontal beam width$ 4,0IJ gain$ ,4 dBi
ertical polarizationJ no preset tilt
& l ti f I % ) t
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 79/123
机密,未经许可不得扩散 文档密级:内部公开
&election of an In%oor )ntenna
"ni!irectional antenna"ni!irectional antenna
Lertical polari=ationG $ain: 2 !Bi
?ori=ontal ea" wi!th: 30JG *ertical ea"
wi!th: 70J
#irectional plate antenna#irectional plate antenna
Lertical polari=ationG $ain: < !Bi
?ori=ontal ea" wi!th: 70JG *ertical ea" wi!th: 0J
o$ perio!ic antennao$ perio!ic antenna
Lertical polari=ationG $ain: 11.' !Bi
?ori=ontal ea" wi!th: ''JG *ertical ea" wi!th: '0J
P i i l f 5 i i ) t * i ht
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 80/123
机密,未经许可不得扩散 文档密级:内部公开
Principles for 5esigning )ntenna *eight
or a flat uran area, the effecti*e hei$ht of an antenna is
usually aout 2'".
or a suur or rural area, the hei$ht of the antenna can e
aout %0".
A too low antenna "ay lower the co*era$e le*el esi!e the
antenna 9a lin! =one un!er the tower;, which is "ore se*ere
for an o"ni!irectional antenna.
A too hi$h antenna "ay result in cross co*era$e, increase the
interference, an! affect the networ) perfor"ance.
Principles for 5esigning )ntenna )6imuth
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 81/123
机密,未经许可不得扩散 文档密级:内部公开
Principles for 5esigning )ntenna )6imuth
6he central loe of the antenna shall face the hi$h
traffic area to i"pro*e the si$nal stren$th an! call
uality.
or the uran area, the o*erlappin$ co*era$e ratio of
the a!@acent cells shall not e+cee! 10M.
or the suur or rural area, the separation an$le
etween the antenna !irections of the a!@acent cells
shall e not lower than 70J.
or the hi$h!ensity uran area, the central loe of the
antenna shall not face a strai$ht street.
Principles for 5esigning )ntennal ilt )ngle
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 82/123
机密,未经许可不得扩散 文档密级:内部公开
Principles for 5esigning )ntennal ilt )ngle
6he antenna tilt technolo$y can effecti*ely control the
co*era$e an! re!uce the intrasyste" interference.
6he antenna tilt an$le shall e !eter"ine! accor!in$ to the
situation. It shall re!uce the interference etween the cells
with the sa"e freuency an! "eet the co*era$e
reuire"ent.
In !esi$nin$ the antenna tilt an$le, factors such as trans"it
power of BS, antenna hei$ht, cell co*era$e, an! wirelesspropa$ation en*iron"ent shall e consi!ere!.
Implementation of )ntenna ilt )ngle
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 83/123
机密,未经许可不得扩散 文档密级:内部公开
Implementation of )ntenna ilt )ngle 6he antenna tilt ea" can e"ploy the fi+e! electrical tilt,
"echanical tilt, or oth
6he fi+e! electrical tilt an$le is relate! to the antenna type.
6he "echanical tilt an$le is a!@ustale an! usually !oes not
e+cee! 1'J.
Electrical tilt an! "echanical tilt $enerate !ifferent surface
ra!iation. If the tilt an$le is s"all, the !ifference is not !istinct. If
the tilt an$le is lar$e, the !ifference is !istinct.
)ntennal Installation +nvironment
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 84/123
机密,未经许可不得扩散 文档密级:内部公开
)ntennal Installation +nvironment
6he installation en*iron"ent inclu!es the a"ient en*iron"ent of the6he installation en*iron"ent inclu!es the a"ient en*iron"ent of the
antenna an! that of the BSantenna an! that of the BS or the a"ient en*iron"ent of the antenna, the antenna isolation an! the
effect of the tower an! rooftop on the antenna shall e consi!ere!.
or the a"ient en*iron"ent of the BS, the effect of the hi$h uil!in$s
within the '00" on the wireless si$nal propa$ation shall e consi!ere!.
-50L relative to
antenna azimuth
-50L relative to
antenna azimuth
=50L
=50L relative to
antenna azimuth
M +0L
NO+0L #ntenna azimuth
#ntenna azimuth
8all8all
)ntennal Installation +nvironment
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 85/123
机密,未经许可不得扩散 文档密级:内部公开
)ntennal Installation +nvironment
(ote: An antenna shall e )ept away fro" arriers,(ote: An antenna shall e )ept away fro" arriers,
otherwise, a lar$e sha!ow area "ay appear.otherwise, a lar$e sha!ow area "ay appear. or e+a"ple, if the antenna is installe! on a rooftop, it shall
e installe! at the e!$e of the rooftop, otherwise the wireless
si$nal "ay e loc)e! y the rooftop.
Requirement on Installing &pace 5iversity
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 86/123
机密,未经许可不得扩散 文档密级:内部公开
Requirement on Installing &pace 5iversity
In case of space !i*ersity, the !istance etween two recei*e
antennas shall e 12 D 18N, 91NO 0.1'" 92/?=;;.6he effect of the *ertical !i*ersity is the sa"e as that of the
hori=ontal !i*ersity only when the *ertical !i*ersity !istance
is 'D ti"es the hori=ontal !i*ersity !istance.
space diversity distance>4--+m for wcdma?
actual installed distance
9ote$
,uestions
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 87/123
机密,未经许可不得扩散 文档密级:内部公开
,
1.5hat ele"ents are use! for e*aluatin$ a
can!i!ate site
2.5hat are the "a@or factors of a U6S site
3.5hat are the principles for installin$ a site in a
hi$h!ensity uran area
%.5hat is the $eneral process for site selection'.5hat are the specific principles for site
selection
.5hat are the a!*anta$es of site colocation with
other operators
<.5hat is the flow of site sur*ey
8.5hat are the principles for !esi$nin$ the antenna
hei$ht
&ummary of the Chapter
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 88/123
机密,未经许可不得扩散 文档密级:内部公开
&ummary of the Chapter
6his chapter co*ers the followin$:
6he co""on prole"s with the site selection
6he principles for an! !etaile! process for site
selection
6he use of le$acy sites an! its a!*anta$es an!
!isa!*anta$es
6he process of an! preparations for site sur*ey
6he principles for !esi$nin$ antenna hei$ht, tilt,
a=i"uth in !ifference situation
Contents of Couse
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 89/123
机密,未经许可不得扩散 文档密级:内部公开
Contents of Couse
raining.huawei.com
Chapter 1 ultisyste" Coe+istence &lannin$
Chapter 2 BS Site Selection
Chapter 3 Antenna ee!er Syste" #esi$n
Chapter * Pilot Pollution an Cell (reathing
Chapter ' (etwor) E*olution an! Capacity
E+pansion Sche"e
Chapter 7 Pilot Pollution an% Cell reathing
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 90/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 7 Pilot Pollution an% Cell reathing
1 Cell (reathing 1 Cell (reathing
2 &ilot &ollution
Cell reathing
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 91/123
机密,未经许可不得扩散 文档密级:内部公开
Cell reathing
If the loa! of a cell increases, the noise also increases, an!If the loa! of a cell increases, the noise also increases, an!
the co*era$e of the cell shrin)s.the co*era$e of the cell shrin)s.
6he e"pirical for"ula for calculatin$ cell reathin$ is as6he e"pirical for"ula for calculatin$ cell reathin$ is as
follows:follows:
Co*era$e shrin)a$e 9M; OCo*era$e shrin)a$e 9M; O
(ot loa!e! Co*era$e
shrin)a$e
correspon!in$ to
increase of 3!B
Co*era$e shrin)a$e
correspon!in$ to
increase of 10!B
)101(*100 5.17/ NR−
−
Cell reathing
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 92/123
机密,未经许可不得扩散 文档密级:内部公开
Cell reathingCell reathin$ is an intrinsic property of the 5C#A
cellular syste".
#isa!*anta$e
Cell reathin$ "ay result in co*era$e hollowness.
A!*anta$e
Cell reathin$ "ay "a+i"i=e the syste" capacity.
6he a"ount of cell reathin$ can e controlle! y settin$
the upper threshol! of increase! noise in the
a!"ittance al$orith".
Planning of Cell reathing
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 93/123
机密,未经许可不得扩散 文档密级:内部公开
Planning of Cell reathing
If the noise raise is li"ite! to 3 !B, the throu$hput is
li"ite! to '0M of the "a+i"u" theoretical capacity, an!
the co*era$e shrin)a$e is li"ite! to 33M of the "a+i"u"
co*era$e.
If the noise raise is li"ite! to 10 !B, the throu$hput is
li"ite! to 70M of the "a+i"u" theoretical capacity, an!
the co*era$e shrin)a$e is li"ite! to <3M of the "a+i"u"
co*era$e.
In the plannin$ of cell reathin$, it is consi!ere! that
noise raise of 3 !B is a co"pro"ise etween capacity
an! co*era$e.
Chapter 7 Cell reathing an% Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 94/123
机密,未经许可不得扩散 文档密级:内部公开
Chapter 7 Cell reathing an% Pilot Pollution
1 Cell Breathin$1 Cell Breathin$
2 Pilot Pollution2 Pilot Pollution
Concept of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 95/123
机密,未经许可不得扩散 文档密级:内部公开
p
Concept of pilot pollutionConcept of pilot pollution
%ilot pollution means that there aretoo many strong pilots within the
coverage' but none of the pilots is
dominant.
Criteria of pilot pollutionCriteria of pilot pollution
here are more than + pilots with
Ac M -/ dBm.
he level difference between the
strongest pilot and the fourth
strongest pilot is N dB.
+ffect of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 96/123
机密,未经许可不得扩散 文档密级:内部公开
+ffect of Pilot Pollution
&ilot pollution is specific to the C#A syste" C#A an!&ilot pollution is specific to the C#A syste" C#A an!
$reatly affects the networ) perfor"ance.$reatly affects the networ) perfor"ance. Effect of pilot pollutionEffect of pilot pollution
?i$h BE-
ow syste" capacity
?i$h call !rop rate !ue to freuent han!o*er
ow access success rate !ue to no !o"inant cell
5etection of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 97/123
机密,未经许可不得扩散 文档密级:内部公开
5etection of Pilot Pollution
Area with pilotArea with pilotpollutionpollution
/oo!
(ot /oo!&ilot pollution&ilot pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 98/123
Cause of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 99/123
机密,未经许可不得扩散 文档密级:内部公开
Cause of Pilot Pollution
Unreasonale cell layoutUnreasonale cell layout
6he !istance etween the BSs A, B an! C is not alance!, an! the location
relation etween the BSs is !istinctly !ifferent fro" an euilateral
trian$le.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 100/123
Cause of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 101/123
机密,未经许可不得扩散 文档密级:内部公开
Cause of Pilot PollutionUnreasonale a=i"uth of an antennaUnreasonale a=i"uth of an antenna
6he antenna a=i"uth of the sector with scra"le of 100 is unreasonale.
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 102/123
Cause of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 103/123
机密,未经许可不得扩散 文档密级:内部公开
Effect of the ac) loe of an antennaEffect of the ac) loe of an antenna
fronttoac) ratio of the antenna !oes not "eet the
reuire"ent, so the si$nal of the ac) loe of the cell lea)s.
)voi%ance of Pilot Pollution
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 104/123
机密,未经许可不得扩散 文档密级:内部公开
An area with pilot &ollution can e pre!icte! in theAn area with pilot &ollution can e pre!icte! in the
plannin$ e"ulation.plannin$ e"ulation.
pti"i=e the planne! sche"e to a*oi! the pilot &ollution.
pti"al solution D e+cellent syste" !esi$npti"al solution D e+cellent syste" !esi$n
&roper site
&roper a=i"uth an! tilt an$le of antennas
&roper trans"it power an! power ratio of BSs
,uestions
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 105/123
机密,未经许可不得扩散 文档密级:内部公开
5hat !oes cell reathin$ "ean 5hat
are the a!*anta$es an! !isa!*anta$es
of cell reathin$
5hat are the principles of cell
reathin$
5hat !oes pilot &ollution "ean 5hat
are the criteria of pilot &ollution
5hat are the $eneral causes of pilot
&ollution
?ow to reasonaly a*oi! pilot
&ollution
&ummary of the Chapter
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 106/123
机密,未经许可不得扩散 文档密级:内部公开
y p
6his chapter co*ers two uniue properties of the
5C#A syste": cell reathin$ an! pilot &ollution.
&heno"ena an! principles of cell reathin$
Concept, criteria, causes, an! a*oi!ance of pilot
&ollution
Contents of Course
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 107/123
机密,未经许可不得扩散 文档密级:内部公开
raining.huawei.com
Chapter 1 ultisyste" Coe+istence &lannin$
Chapter 2 BS Site Selection
Chapter 3 Antenna ee!er Syste" #esi$n
Chapter % &ilot &ollution an! Cell Breathin$
Chapter 0et#or &olution an Capacity
xpansion !cheme
Chapter 8 9et'or: +volution an% Capacity
+xpansion &cheme
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 108/123
机密,未经许可不得扩散 文档密级:内部公开
p
1 Capacity xpansion Principles1 Capacity xpansion Principles
2 Capacity E+pansion Sche"e
3 Capacity E+pansion Analysis
9et'or: +volution an% Capacity +xpansion
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 109/123
机密,未经许可不得扩散 文档密级:内部公开
p y p
?ow to uil! an econo"ic 5C#A networ) efficiently?ow to uil! an econo"ic 5C#A networ) efficiently
Ansure optimal cost;performance ratio of network construction
)aximize profit;investment ratio
Ansure balance between network coverage' network capacity'
network <uality' and cost
At the early sta$e of the networ) construction, )now wellAt the early sta$e of the networ) construction, )now well
the capacity reuire"ents for !ifferent sta$es an! "a)ethe capacity reuire"ents for !ifferent sta$es an! "a)e
capacity e+pansion sche"es for each sta$e to ensure thecapacity e+pansion sche"es for each sta$e to ensure the
lastin$ !e*elop"ent of the networ).lastin$ !e*elop"ent of the networ).
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 110/123
Chapter 8 9et'or: +volution an% Capacity
+xpansion &cheme
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 111/123
机密,未经许可不得扩散 文档密级:内部公开
p
1 Capacity E+pansion &rinciples
2 Capacity xpansion !cheme2 Capacity xpansion !cheme
3 Capacity E+pansion Analysis
0eatures an% 9et'or: 5esign of 5ifferent )reas
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 112/123
机密,未经许可不得扩散 文档密级:内部公开
Area eature #esi$n consi!eration
?i$h!ensityuranarea
?i$h traffic !ensity?i$h !ata traffic ratioBottlenec) of !ownlin) capacity
-elati*ely hi$h !ownlin)capacity an! relati*ely
hi$h loa!
Co""onuranarea
-elati*ely hi$h traffic !ensity-elati*ely low !ata traffic ratioBalance! uplin) an! !ownlin)
capacity
Balance! capacity an!co*era$e an! "e!iu"cell loa!
Suur
ow traffic !ensity
?i$h *oice traffic ratioBottlenec) of uplin) capacity
Co*era$e effect an!relati*ely low cell loa!
Capacity +xpansion &cheme for %ense rban )rea
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 113/123
机密,未经许可不得扩散 文档密级:内部公开
(etwor)
constructionsta$e
Capacity
Early sta$e i!
sta$e
i!late
sta$eate
sta$e
+P, 408
+P4 ,08Increase y %8M
+P4 408
)%% carrierA!! carrier
Increase y '0M+P4 408
Increase y 3%M
trans"it !i*ersity
A!! power
a"plifier +P+ 408Increase y 1'
-
30M
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 114/123
Capacity +xpansion &cheme for &uburb
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 115/123
机密,未经许可不得扩散 文档密级:内部公开
+P, 408
+P, 08
Increase y 2<M
A!! power a"plifier
+P4 408
A!! carrier
Increase y '<M
(etwor)construction
sta$e
Capacity
Early sta$e i!late
sta$e
ate
sta$e
Chapter 8 9et'or: +volution an% Capacity
+xpansion &cheme
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 116/123
机密,未经许可不得扩散 文档密级:内部公开
1 Capacity E+pansion &rinciples
2 Capacity E+pansion Sche"e
3 Capacity xpansion %nalysis3 Capacity xpansion %nalysis
Capacity +volution &chemes
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 117/123
机密,未经许可不得扩散 文档密级:内部公开
+P, ,08 +P4 ,08-#
+P, 408 +P4 408
+P4 ,08-B
4
,
+
5
+P4 408
3
*
(etwor)opti"i=ation
Unchan$e!
pilot
E*olution
s"oothly
A!! power
a"plifier6rans"it
!i*ersity
A!! power a"plifier P
networ) opti"i=ation
A!! power
a"plifier Ptrans"it
!i*ersity
)nalysis of Capacity +volution &chemes th ! 1 th ! 1
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 118/123
机密,未经许可不得扩散 文档密级:内部公开
etho! 1:etho! 1:
In this "etho!, the low reuire! capacity at the early sta$e is
consi!ere!, the s"ooth transition can e i"ple"ente! without
a!!itional power a"plifier, thus facilitatin$ the networ) plannin$ an!
opti"i=ation.
6he capacity e+pansion is con*enient an! not ti"econsu"in$.
etho! 2:etho! 2:
Co"pare! with etho! 1, this "etho! results in a hi$her initial
capacity 9for a hi$h!ensity area, the initial capacity is 12M hi$her;.
(o a!!itional power a"plifier is nee!e!, the transition is not s"ooth,
so the networ) opti"i=ation reuires "ore efforts 9the capacity is
e+pan!e! fro" 1.1 ti"es 3Q1 105 to twice 3Q1 105;.
6he networ) opti"i=ation in*ol*es: 1; a!@ustin$ pilotG 2; locally
a!@ustin$ antenna para"etersG 3; a!!in$ BS or repeater.
)nalysis of Capacity +volution &chemes
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 119/123
机密,未经许可不得扩散 文档密级:内部公开
etho! 3:etho! 3:
neoff s"ooth transition. &ower a"plifier an! carrier are a!!e!.
etho! %:etho! %:
neoff s"ooth transition.
&ower a"plifier an! carrier are a!!e!.
6he pilot plannin$ re"ains unchan$e!, thus
facilitatin$ the networ) opti"i=ation.
)nalysis of Capacity +volution &chemes
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 120/123
机密,未经许可不得扩散 文档密级:内部公开
etho! ':etho! ':
9on-smooth transition.
%ower amplifier and carrier are added.
he network optimization re<uires many efforts.
etho! :etho! : 9on-smooth transition.
%ower amplifier is added.
he network optimization re<uires many efforts.
etho! <:etho! <:
ransit diversity.
Recommen%e% Capacity +xpansion Metho%
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 121/123
机密,未经许可不得扩散 文档密级:内部公开
3R1 205 BSs are use!, an! the networ) is planne! y usin$ 205.
or preli"inary capacity e+pansion, carriers are a!!e!, with pilot
channel unchan$e!.
or further capacity e+pansion, the power of other co""on
channels are a!!e! for s"ooth e+pansion, with the networ)
plannin$ unchan$e!.
inally, capacity is e+pan!e! y usin$ transit !i*ersity an! other
enhance! technolo$ies.
,uestions
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 122/123
机密,未经许可不得扩散 文档密级:内部公开
?ow to uil! an econo"ic 5C#A
networ) efficiently
5hat are the principles for e+pan!in$
capacity of wireless networ) in !ifficult
situation
&lease list three capacity e+pansion
"etho!s.
&ummary of the Chapter
7/21/2019 OWJ100103 WCDMA Base Station System Planning
http://slidepdf.com/reader/full/owj100103-wcdma-base-station-system-planning 123/123
6his chapter co*ers the principles for the
networ) e*olution an! capacity e+pansion an!
the "a@or "etho!s use! for capacity e+pansion
in !ifficult situation. It also intro!uces an!
analy=es !ifferent capacity e+pansion "etho!s.