4_frequency planning.ppt
TRANSCRIPT
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 1/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
www.huawei.c!
Internal
Frequency Planning
&
Neighbor Cell PlanningISSUE1.0
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 2/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 1Cha
pter 1 Basic knowledgeBasic knowle
dge
Chapter 2Chapter 2 Frequency planningFrequency planning
Chapter 3Chapter 3 Frequency hoppingFrequency hopping
Chapter 4 Neighbor Cell PlanningChapter 4 Neighbor Cell Planning
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 3/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Content of Basic knowledge
Frequency resource o !"# syste$Frequency resource o !"# syste$
%equire$ent or carriertointererence ratio%equire$ent or carriertointererence ratio
"ignal quality grade coding"ignal quality grade coding
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 4/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Channel 'nter(al : 2))k*+
1,1) 1,-. 1-). 1--)
Duplex distance : /. #*+
-/) /1. /3. /0)
Duplex distance : 45 !"
!"# /))
!"# 1-))
#$e%uenc& 'esou$ce of (S S&ste)
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 5/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
#$e%uenc& Band Configu$ation
!"#/)):
B*S $ecei+e$ ,uplink -: f1( n)= /0+ n0. !"
B*S t$ans)itte$ ,downlink -: f( n)= f1( n)+ 45 !"
!"#1-)):
B*S $ecei+e$ ,uplink -: f1( n)= 1210+( n- 511) 0.
!"
B*S t$ans)itte$ ,downlink -: f( n)= f1( n)+ /5 !"
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 6/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
'e%ui$e)ent fo$ Ca$$ie$3*o3Inte$fe$ence 'atio
ll useful signals carrier
ll useless signals intererence
(S standa$d: co3c6annel C 7 I 8 / dB
In p$actical p$o9ects: C 7 I 8 1dB
Useful signal oise f$o) en+i$on)ent
;t6e$ signals
C7I
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 7/60HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
'<=U> ean BE' BE' $angeclass ,?- f$o)... to
0 0.14 @ 0.?
1 0. 0. ... 0.4 ?
0.52 0.4 ... 0. ?
A 1.1A 0. ... 1. ?
4 . 1. ... A. ?
5 4.5A A. ... .4 ? /.05 .4 ... 1. ?
2 1.1 8 1. ?
#ai$l& good
Intole$ale
(ood
cceptale
Signal =ualit&
'ecei+ing %ualit& ,'<=U> pa$a)ete$-
>e+el of $ecei+ing %ualit& ,0 ... 2-
Bit e$$o$ $ate efo$e decoding and e$$o$ co$$ection
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 8/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
=uestion1 ' %FCN is /0
what is the corresponding requency (alue
' the requency (alue is /)/5-# in uplink
what is the corresponding channel nu$ber
' %FCN is 12-,
which band does it belong to !"#/)) or 1-)) or neither
' the requency resource is 0#
how $any channels are there
i no requency reuse how $any subscribers can access
network at the sa$e ti$e
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 9/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 1Chapter 1 Basic knowledgeBasic knowledge
Chapter 2Chapter 2 Frequency planningFrequency planning
Chapter 3Chapter 3 Frequency hoppingFrequency hopping
Chapter 4 Neighbor Cell PlanningChapter 4 Neighbor Cell Planning
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 10/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 2 Frequency planningChapter 2 Frequency planning
251251 Concept o requency reuseConcept o requency reuse
252 Nor$al requency reuse
253 6ight requency reuse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 11/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Concept of #$e%uenc& 'euse
fif9..fkFac$o3cell s&ste)
ic$o3cell s&ste)
d
$euse
fif9..fkF fif9..fkF fif9..fkF55 55
$euse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 12/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
*6e 'eason of #$e%uenc& 'euse
#$e%uenc& $esou$ce is li)ited. If t6e$e is !" f$e%uenc& $esou$ce
Case 1No requency reuse
!" 40 c6annels G ti)eslots A0
8 )ax. A0 use$s can access t6e netwo$k at t6e sa)e ti)e.
Case 2Frequency reuse
If eac6 f$e%uenc& ca$$ie$ is $eused fo$ n ti)es t6en A0Gn use$s can
co))unicate at t6e sa)e ti)e. ,*6e actual $elation is )o$e t6an nti)es.-
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 13/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Frequency Reuse induce Co-channel interference
H$ole) of #$e%uenc& 'euse
17
% 5 D7' 5 , A k -
6
γ q
I
C =
fn
fn
fnfn
fn
fnfn
R D
Interference coming from 6 co-channel cells
At the cell boundary, the interference is
severe
6)1(
γ
−=
q I C
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 14/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
>oose$ $euse
!ig6e$ f$e%uenc& $euseefficienc& ut inte$fe$ence
is se$ious. o$e tec6ni%ue
Is needed.
*ig6te$ $euse
0 10 0
>ittle inte$fe$ence ut f$e%uenc&
$euse efficienc& is low.
'euse Densit&
'euse densit& is t6e nu)e$ of cells in a asic $euse
cluste$.
4GA: 1
nG): nG)
n: B*S nu)e$ in a asic $euse cluste$
): #$e%uenc& g$oup nu)e$ in a B*S
1
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 15/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Capability
7uality 'ntererenceBit error
8i$ited by
Balance
Frequency resource Frequency reuse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 16/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 2 Frequency planningChapter 2 Frequency planning
251 Concept o requency reuse
252252 Nor$al requency reuseNor$al requency reuse
253 6ight requency reuse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 17/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
4GA #$e%uenc& 'euse
1C1
B1
912
3B2
B3
C2
C392
93
1
C1
B1
912
3B2
B3
C2
C392
93
1
C1
B1
912
3
B2
B3
C2
C392
931
C1
B1
912
3
B2
B3
C2
C392
93
1C1
B1
912
3B2
B3
C2
C392
93
1C1
B1
91
2
3B2
B3
C2
C392
93
4 B*SA cells7B*S1 cells const$ucta cluste$
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 18/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Illust$ation of #$e%uenc& llocation of 4GA
#$e%uenc& 'euse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 19/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
4GA f$e%uenc& use
1C1
B1
912
3B2
B3
C2
C392
93
1
C1
B1
912
3B2
B3
C2
C392
93
1
C1
B1
912
3
B2
B3
C2
C392
934)
42
41
4344
30
4.
3,
34
3-3.
3/
1C1
B1
9123
B2
B3
C2
C392
93
1
C1
B1
91
2
3B2
B3
C2
C392
1
C1
B1
912
3B2
B3
C2
C392
9393
.2
.4
.3
...0
4-.,
4/
40
.)4,
.1
4GA is no$)al f$e%uenc& use BCC! planning )ust use 4GA
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 20/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 2 Frequency planningChapter 2 Frequency planning
251 Concept o requency reuse
252 Nor$al requency reuse
253253 6ight requency reuse6ight requency reuse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 21/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
*ig6t #$e%uenc& 'euse *ec6nolog&
1 、 #ultilayer reuse pattern :#%P;
2、 1<3
3、 1<1
4、 =nderlaid and o(erlaid cell
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 22/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
ulti3la&e$ 'euse Hatte$n
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 23/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
B!" n1
#!1" n$
#!$" n%
…
#!m-1" nm
n1≥n$≥n%≥n&≥''''''≥ nm
And n1n$'''nmn
ulti3la&e$ 'euse Hatte$n
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 24/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
ulti3la&e$ 'euse Hatte$n J
Consecuti+e #$e%uenc& llocation Suppose that the available frequency carrier is
10MHZ, channel number is 46~ 77, the Multi
layer reuse pattern shoul! be"
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 25/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Layout Layout
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 26/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
BCCHBCCH
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 27/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
TCH Layer 1TCH Layer 1
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 28/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
TCH Layer 2TCH Layer 2
TCH L 3
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 29/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
TCH Layer 3TCH Layer 3
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 30/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
ulti3la&e$ 'euse Hatte$n 3
Inte$+al #$e%uenc& llocation
BCC! *C!1 *C! *C!A *C!4
>13.55523?
>1234.5554)?
>245522245554)?
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 31/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
cap N BW
re use
i
i
'=−
∑
d+antages of ulti3la&e$ 'euse Hatte$n
Capacit& inc$ease w6en $euse densit& is )ultiplied: Su""si#g there are $%% cells
&a#dwidth' ( )H* +% -reue#c/0
o$)al 4GA $euse: $euse densit&1
netwo$k capacit& 4071 G A00 1000 *'<
ultiple $euse:
BCC! la&e$: $e3use 14 ,14 f$%.-
o$)al *C! la&e$: $e3use 10 ,0 f$%.-
gg$essi+e *C! la&e$: $e3use , f$%.-
etwo$k capacit& ,1 K K1-G A00 100 *'<
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 32/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
1GA f$e%uenc& $euse
Cell configu$ation is ad+anced wit6 t6e sa)e
f$e%uenc& $esou$ce
Cell 'adius is t6e sa)e, 'euse distance isdec$eased Inte$fe$ence is en6anced.
Le need use ext$a tec6nolog& to $esist
inte$fe$ence w6ile using 1GA f$e%uenc& $euse
1GA9
%
4GA 9
%
Co)pa$e 1GA f$e%uenc& $euse wit6 4GA $euse
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 33/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
(ene$al Unde$la& ;+e$la&
*6e inne$ ci$cle co+e$s a s)alle$ a$ea and t6e
f$e%uenc& can e $eused )o$e tig6tl&.
@(erlaycell=nderlaycell
@(erlaycell=nderlaycell
9
r %
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 34/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
BCC! 15f 'egula$ 4f Supe$ 1f
BCC! 'euse densit&: 15
' *C! *'< $euse densit&: 1
S *C! *'< $euse densit&:
Intelligent Unde$la& ;+e$la&
Supe$ fn
'egula$ f)
'egula$ f)
Supe$ fnSupe$ fn
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 35/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 1Chapter 1 Basic knowledgeBasic knowledge
Chapter 2Chapter 2 Frequency planningFrequency planning
Chapter 3Chapter 3 Frequency hoppingFrequency hopping
Chapter 4 Neighbor cell planningChapter 4 Neighbor cell planning
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 36/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 3 Frequency hoppingChapter 3 Frequency hopping
351351 d(antage and class o hoppingd(antage and class o hopping
352 *opping para$eter
353 *opping application
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 37/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
#$e%uenc& 6opping $efe$s to t6e $egula$ 6opping of
ca$$ie$ f$e%uenc& wit6in ce$tain $ange
Concept of #$e%uenc& !opping
……
Bn AA nBn1 AA n1
B1 AA 1
B=%"6
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 38/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
d+antages of !opping
B4 B3 B2 B14 3 2 1
432
1
!o**ing is a s*ecial fre+uency diversity
(et an ag$eeale $adio
en+i$on)ent.
H$o+ide a si)ila$
co))unication %ualit& fo$
e+e$& use$ .
*ig6te$ $euse patte$ns
a$e possile to e used
fo$ la$ge$ capacit&
1
1
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 39/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Class of !opping
Class acco$ding to t6e wa& of i)ple)entation Base3and 6opping
'# 6opping
Class acco$ding to t6e )in 6opping ti)e unit
*i)eslot 6opping
#$e%uenc& c6anges e+e$& ti)eslot.
#$a)e 6opping
#$e%uenc& c6anges e+e$& *D f$a)e.
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 40/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Base Band !opping H$inciple
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 41/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
'# !opping H$inciple
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 42/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 3 Frequency hoppingChapter 3 Frequency hopping
351 d(antage and class o hopping
352352 *opping para$eter *opping para$eter
353 *opping application
!opping Ha$a)ete$s L6 t N
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 43/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
!opping Ha$a)ete$s *opping $ode: t6e )ode used & t6e B*S s&ste) including t6$ee options: not
6opping ase and 6opping and '# 6opping.
# ,oile llocation Set-: t6e set of a+ailale f$e%uenc& w6en 6opping containing
at )ost 4 f$e%uenc& ca$$ie$s. *6e f$e%uenc& eing used )ust e t6ose of t6e
a+ailale f$e%uenc&
*"N: 6opping se%uence nu)e$ ( 0~ A) . !S0: c&cle
6opping!SM0: $ando) 6opping. E+e$& se%uence nu)e$ co$$esponds a
pseudo $ando) se%uence.
#'@ ,oile llocation Index ;ffset-: used to define t6e initial f$e%uenc& of t6e
6opping.
6"C: s6ould e set consistent wit6 BCC
L6at N
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 44/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
!opping Ha$a)ete$s
ll t6e pa$a)ete$s w6ic6 a$e $elated to 6opping a$e configu$ed
in cell7configu$e !opping data
L6e$e N
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 45/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 3 Frequency hoppingChapter 3 Frequency hopping
351 d(antage and class o hopping
352 *opping para$eter
353353 *opping application*opping application
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 46/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Exa)ple of 1GA #$e%uenc& 'euse
"uppose /)) band /0~ 124
B6" coniguration : "333
BCC* layer : /0~ 1)/ reuse pattern : 4<3
6C* layer : 11)~ 124 reuse pattern : 1<3
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 47/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
*C! Consecuti+e llocation Sc6e)e
I;
#1 110 111 11 11A 114 0
#2 115 11 112 11 11/ 0
#3 10 11 1 1A 14 0
1
A
Cell1
Cell2Cell3
1
A
Cell1
Cell2Cell3
1
A
Cell1
Cell2Cell3
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 48/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
*C! Inte$+al llocation Sc6e)e
I;#1 110 11A 11 11/ 1 04
#2 111 114 112 10 1A 1A
#3 11 115 11 11 14 0
1
A
Cell1
Cell2Cell3
1
A
Cell1
Cell2Cell3
1
A
Cell1
Cell2Cell3
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 49/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Co)pa$e two llocation Sc6e)e
Diffe$ent +alue
; Diffe$ent I; +alue
;
Unde$ !" and
, Consecuti+e llocation suppo$t
)ax site t&pe SA7A7A( t6eo$eticall&), w6ile Inte$+al llocation suppo$t )ax t&pe S47A7A;
Consecuti+e llocation is usuall& used in u$an a$ea
L6ile Inte$+al allocation is usuall& used in town and
count$&.
In o$de$ to dec$ease t6e infe$ence etween diffe$ent
B*S It is ette$ to keep t6e cell a"i)ut6 consistent
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 50/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Co)pa$ison Between ulti3la&e$ $euse and 1GA
#o$ ulti3la&e$ $euse patte$n eit6e$ Base and 6opping o$ '# 6opping
can e used. But fo$ 1xA $euse onl& '# 6opping can e used.
*6e f$e%uenc& planning fo$ t6e 1xA )ode is si)ple and it is eas& to plan
t6e f$e%uenc& fo$ new added B*S.
1xA )ode $e%ui$es a $at6e$ $egula$ B*S location dist$iution.
#o$ t6e cells wit6 fixed nu)e$ of *'< w6en t6e t$affic is 6ea+& t6e 1xA
p$o+ides 6ig6e$ se$+ice %ualit& t6an t6at of ulti3la&e$ $euse patte$n.
*'< can e easil& added to t6e 1xA netwo$k ut *'< nu)e$ of 6opping
s6ould not exceed t6e p$oduct of t6e allocated 6opping f$e%uenc&nu)e$ and t6e )ax '# load $atio.
BCC! of ulti3la&e$ $euse patte$n can take pa$t in t6e f$e%uenc&
6opping w6ile BCC! in 1xA )ode can not.
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 51/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
#$e%uenc& Hlanning H$inciple
*6e$e s6ould e no co3c6annel f$e%uenc& ca$$ie$s in one B*S.
*6e f$e%uenc& sepa$ation etween BCC! and *C! in t6e sa)e cell s6ould
e not less t6an 400O.
L6en f$e%uenc& 6opping is not used t6e sepa$ation of *C! in t6e sa)e
cell s6ould e not less t6an 400O.
In non31GA $euse )ode co3c6annel s6ould e a+oided etween t6e
i))ediatel& neig6o$ B*S.
eig6o$ B*S s6ould not 6a+e co3c6annels facing eac6 ot6e$ di$ectl&.
o$)all& wit6 1GA $euse t6e nu)e$ of t6e 6opping f$e%uencies s6ould e
not less t6an twice of t6e nu)e$ of f$e%uenc& 6opping *'< in t6e sa)ecell.
Ha& close attention to co3c6annel $euse a+oiding t6e situation t6at t6e
sa)e BCC! 6as t6e sa)e BSIC in ad9acent a$ea.
Exa)ple of #$e%uenc& Hlanning
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 52/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
.
Exa)ple of #$e%uenc& Hlanning
n exa)ple netwo$k in a specific place B*S a$e densel& located. *6e
topog$ap6& is plain. *6e )axi)u) B*S configu$ation is SA7A7
Initial planning:
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 53/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Exa)ple of #$e%uenc& Hlanning
#inal f$e%uenc& planning:
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 54/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
Chapter 1Chapter 1 Basic knowledgeBasic knowledge
Chapter 2Chapter 2 Frequency planningFrequency planning
Chapter 3Chapter 3 Frequency hoppingFrequency hopping
Chapter 4 Neighbor cell planningChapter 4 Neighbor cell planning
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 55/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
L6&
*ando(er is based on the neighbor relationship.
Disting proble$ o neighbor planning
o neig6o$ $elations6ip no 6ando+e$
Co3BCC! and co3asic etween ad9acent cells lead to 6ando+e$
failu$e.
$edundant neig6o$s
)issing neig6o$
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 56/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
eig6o$ Cell Desc$iption
#here are table $%1 an! table $%&'
#able $%1 !escribes $((H frequencies of the
a!)acent cells to be measure! *hen the MS is in i!le
mo!e'
#able $%& !escribes $((H frequencies of the
a!)acent cells to be measure! *hen the MS is in
!e!icate! mo!e'
#here are t*o +in!s of neihbors
idi$ectional neig6o$s
unidi$ectional neig6o$s
$i!irectional neihbors are common, an!
uni!irectional neihbors are use! in special
con!ition, such as overshootin
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 57/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
B
A
A
1 The sig#als - cell A cvers s!e areas -ar awa/ -r! this
cell. It is vershti#g.
1 Whe# )S !ves -r! this area twards & a#d C
i# dedicated !de, the sig#al is wrse a#d wrse.
1 si#ce cell & a#d C is #t the cell A2s #eigh3r,
call dr" will ccur 4#all/.
1 There are three sluti#'
1 Ad5ust the dw#tilt - the a#te##a
1 Ad5ust the tra#s!itti#g "wer - the &TS
1 Add & a#d C as the #eigh3r - cell A, # #eed t add
A t & a#d C, that is u#idirecti#al #eigh3r.
+!a6e sure that there are # c7&CCH a#d c7&SIC i# #eigh3r
list0
;+e$s6ooting and Unidi$ectional eig6o$
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 58/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
6he cells o cosite $ust be set as neighbor cells
6he cells conronting directly $ust be added to neighbor list
6he cells acing toward the sa$e direction should be neighbors
*6e cells s6ooting & t6e o$iginal cell *6e cells s6ooting at t6e o$iginal cell
6he cells one site apart ace to ace should be neighbor cells5
eig6o$ Hlanning H$inciple
7/18/2019 4_Frequency Planning.ppt
http://slidepdf.com/reader/full/4frequency-planningppt 59/60
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
De)onst$ation ,ideall&-
cosite cell(onfrontin cell
same !irectional cell
one site apartface to face cell
-riinal cell