Ltenetworkplanninghuaweitechnologies 150822100037 Lva1 App6892

8/20/2019 Ltenetworkplanninghuaweitechnologies 150822100037 Lva1 App6892

1/54

HUAWEI TECHNOLOGIES CO., LTD.Page 1

Huawei Confidential

Contents

Name LTE Network Planning

Purpose To Introduce the LTE basic principle, network planning method and RNP solution

Key Message LTE has the fat network architecture and physical layer applies

OFM technology! as well as the M"MO! "C"C! etc#LTE network planning includes co$erage! capacity planning# Link

%udget and capacity estimation are introduced in these slides#

"n &NP solution! you can 'nd the introduction o( &NP tools!

per(ormance enhancement (eatures and other solution that

customer will concern! such as the inter(erence a$oidance and co)antenna analysis

*udience Global C&i RNP engineers, product manager and account managers with wireless

background

knowledge

+ersion "n(ormation

+ersions Creator,-ta. " *ppro$er,-ta. " &elease dept#

!"#$%"$$""

'

Cui (ong)eng*+'-


2/54


Huawei Confidential

Charter 1 LTE PrinciplesCharter 1 LTE Princi

ples

Charter 2 LTE Network Planning

Charter 3 LTE RNP Solutions


3/54


Huawei Confidential

LTE Network .rchitecture Main Network Element of LTE

The E-UTRAN consists of eNo!e"s, providing

the user plane and control plane.

The EP consists of MME, S#$ and P#$.

RR! Radio Resource ontrol

P"P! Pac#et "ata onvergenceProtocol

R$! Radio $in# ontrol

%A! %ediu& Access ontrol

P'(! Ph)sical la)er

EP! Evolved Pac#et ore

%%E! %o*ilit) %anage&ent Entit)

+-! +erving atea)P-! P"N atea)

Compare with traditional /0network! LTE architecture %ecomes

much more simple and fat! which

can lead to lower networking cost!

higher networking fe1i%ility and

shorter time delay o( user data and

control signaling#

Network %nterface of LTE

The e-Node/s are interconnected ith each other *) &eans of the &2 interface, hich ena*ling direct

trans&ission of data and signaling.

S1 is the interface *eteen e-Node/s and the EP, &ore specificall) to the %%E via the +1-%%E

and to the +- via the +1-U


4/54


Huawei Confidential

eNo!e hosts the following functions' unctions for Radio Resource %anage&ent! Radio /earer

ontrol, Radio Ad&ission ontrol, onnection %o*ilit)

ontrol, ")na&ic allocation of resources to UEs in *oth

uplin# and donlin# scheduling4

5P header co&pression and encr)ption of user data strea&4

+election of an %%E at UE attach&ent4

Routing of User Plane data toards +erving atea)4

+cheduling and trans&ission of paging and *roadcast

&essages originated fro& the %%E4

%easure&ent and &easure&ent reporting configuration for&o*ilit) and scheduling4

MME (Mo)ilit* Management Entit*+ hosts the

following functions' NA+ signaling and securit)4

A+ +ecurit) control4

5dle state &o*ilit) handling4

EP+ Evolved Pac#et +)ste& *earer control4

+upport paging, handover, roa&ing and authentication.

S#$ (Ser,ing #atewa*+ hosts the following functions'

Pac#et routing and forarding4 $ocal &o*ilit) anchor point for

handover4 $aful interception4 U$ and "$ charging per UE, P"N,

and 654 Accounting on user and 65 granularit) for inter-

operator charging.

P#$ (P-N #atewa*+ hosts the following functions'

Per-user *ased pac#et filtering4 UE 5P address allocation4 U$

and "$ service level charging, gating and rate enforce&ent4

LTE Network Element /unction


5/54


Huawei Confidential

Introduction o) LTE Radio Protocol0tack

Two Planes in LTE Ra!io Protocol' .serplane! or user data transfer

Controlplane! or s)ste& signaling

transfer

Main /unctions of .serplane' 'eader o&pression

iphering +cheduling

AR68'AR6

Main /unctions of Controlplane'

R$ and %A la)ers perfor& the sa&e functions as

for the user plane

P"P la)er perfor&s ciphering and integrit) protection

RR la)er perfor&s *roadcast, paging, connection

&anage&ent, R/ control, &o*ilit) functions, UE

&easure&ent reporting and control

NA+ la)er perfor&s EP+ *earer &anage&ent,

authentication, securit) control

.serplane protocol stack

Controlplane protocol stack


6/54


Huawei Confidential

Ra!io /rame Structures Supporte! )* LTE' T)pe 1, applica*le to ""

T)pe 2, applica*le to T""

/-- Ra!io /rame Structure' $TE applies :"% technolog), ith su*carrier spacing ∆f;17#'< and 2=0>-

order 5T. The ti&e unit in fra&e structure is Ts;182=0>? 17=== second

"" radio fra&e is 1=&s shon as *elo, divided into 2= slots hich are

=.7&s. :ne slot consists of @ consecutive :"% +)&*ols under Nor&al P

configuration

/-- Ra!io /rame Structure

Concept of Resource "lock' $TE consists of ti&e do&ain and freuenc) do&ain resources 0 The minimum unit for

sche!ule is R" (Resource "lock+, hich co&pose of RE Resource Ele&ent

RE has 2-di&ension structure! s)&*ol of ti&e do&ain and su*carrier of freuenc) do&ain

:ne R/ consists of 1 slot and 12 consecutive su*carriers under Nor&al P configuration

Radio /rame 0tructure 1"2


7/54

HUAWEI TECHNOLOGIES CO., LTD.Page @

Huawei Confidential

T-- Ra!io /rame Structure'

Applies :"%, sa&e su*carriers spacing and

ti&e unit ith "".

+i&ilar fra&e structure ith "". radio fra&e is

1=&s shon as *elo, divided into 2= slots

hich are =.7&s.

The uplin#-donlin# configuration of 1=&s

fra&e are shon in the right ta*le.

.plink!ownlink Configurations

.plink!ownlink

configuration

-ownlinkto.plink

Switchpointperio!icit*

Su)frame num)er

1 2 3 4 5 6 7

= 7 &s " S U U U " S U U U

1 7 &s " S U U " " S U U "

2 7 &s " S U " " " S U " "3 1= &s " S U U U " " " " "

0 1= &s " S U U " " " " " "

7 1= &s " S U " " " " " " "

9 7 &s " S U U U " S U U "

(wPT03 (ownlink Pilot Time 0lotGP3 Guard Period4pPT03 4plink Pilot Time 0lot

T-- Ra!io /rame

Structure

(3 (ownlinksub)rame43 4plink sub)rame

03 0pecial sub)rame

Radio /rame 0tructure 12


8/54

HUAWEI TECHNOLOGIES CO., LTD.Page >

Huawei Confidential

Radio /rame 0tructure 1+2 CP Length Configuration'

)clic PrefiB is applied to eli&inate 5+5 of

:"%.

P length is related ith coverage

radius. Nor&al P can fulfill the

reuire&ent of co&&on scenarios.

EBtended P is for ide coverage

scenario.

$onger P, higher overheading.

Configuration-L 8/-M CP

Length.L SC/-M9 CP

LengthSu)carrierof each R"

S*m)ol ofeach slot

NormalCP

∆f;17#'<19= for slot C=

100 for slot C1DC9

19= for slot C=

100 for slot C1DC9 "5

E:ten!e!CP

∆f;17#'< 712 for slot C=DC7 712 for slot C=DC7 9

∆f;@.7#'< 1=20 for slot C=DC2 NU$$ 20 "$ onl) 3 "$ onl)

CP Configuration

Slot structure un!er

Normal CP configuration

( f;1k


9/54

HUAWEI TECHNOLOGIES CO., LTD.Page

Huawei Confidential

6rie) Introduction o) Ph7sicalChannels

-ownlink Channels Ph)sical /roadcast hannel P"C


10/54

HUAWEI TECHNOLOGIES CO., LTD.Page 1=

Huawei Confidential

(ownlink Ph7sical Channel -ownlink Ph*sical Channel Processing

scram)ling of co!e! )its in each of the co!e wor!s to )e transmitte! on a ph*sical channel

mo!ulation of scram)le! )its to generate comple:,alue! mo!ulation s*m)ols

mapping of the comple:,alue! mo!ulation s*m)ols onto one or se,eral transmission la*ers

preco!ing of the comple:,alue! mo!ulation s*m)ols on each la*er for transmission on the antenna ports

mapping of comple:,alue! mo!ulation s*m)ols for each antenna port to resource elements

generation of comple:,alue! time!omain 8/-M signal for each antenna port

Mo!ulation Scheme of

-ownlink Channel

+hon at the right ta*le

Phy ChModulation

-chemePhy Ch

Modulation

-cheme

P6C9 :P0; PC/IC9 :P0;

P(CC9 :P0; P9IC9 6P0;

P(0C9:P0;, "


11/54


Huawei Confidential

4plink Ph7sical Channel .plink Ph*sical Channel Processing

scram)ling

mo!ulation of scram)le! )its to generate comple:,alue! s*m)ols

transform preco!ing to generate comple:,alue! s*m)ols

mapping of comple:,alue! s*m)ols to resource elements

generation of comple:,alue! time!omain SC/-M9 signal for each antenna port

Mo!ulation Scheme of -ownlink Channel +hon at the right ta*le Phy Ch

Modulation

-cheme

P4CC9 6P0;, :P0;

P40C9 :P0;, "


12/54


Huawei Confidential

(ownlink Ph7sical 0ignals 1"2 -ownlink RS (Reference Signal+'

+i&ilar ith Pilot signal of "%A. Used for donlin# ph)sical channel

de&odulation and channel ualit) &easure&ent 65 Three t)pes of R+ in protocol. ell-+pecific Reference +ignal is essential and

the other to t)pes R+ %/+N +pecific R+ G UE-+pecific R+ are optional.CellSpecific RS

Mapping in Time

/re>uenc* -omain 8 n e 9 n t e n n a

P o r t

T w o 9 n t e n n a

P o r t s

/ o u r 9 n t e n n a

P o r t s

9ntenna Port 9ntenna Port 1 9ntenna Port 2 9ntenna Port 3

Characteristics' ell-+pecific Reference +ignals are generated fro& cell-specific

R+ seuence and freuenc) shift &apping. R+ is the pseudo-

rando& seuence trans&its in the ti&e-freuenc) do&ain.

The freuenc) interval of R+ is 9 su*carriers. R+ distri*utes discretel) in the ti&e-freuenc) do&ain, sa&pling

the channel situation hich is the reference of "$ de&odulation.

+erried R+ distri*ution leads to accurate channel esti&ation,

also high overhead that i&pacting the s)ste& capacit).

M3-FN4 Multicast,3roadcast

o$er a -ingle Fre5uency

Network

RE

Not use! for RStransmission onthis antenna port

RS s*m)ols onthis antenna port

R1' RS transmitte! in 1st ant port

R2' RS transmitte! in 2n! ant port

R3' RS transmitte! in 3r! ant port

R' RS transmitte! in th ant port


13/54


Huawei Confidential

S*nchroni=ation Signal' s)nchroni


14/54


Huawei Confidential

.plink RS (Reference Signal+' The uplin# pilot signal, used for s)nchroni


15/54


Huawei Confidential

"asic Principle of Cell Search'

ell search is the procedure of UE s)nchroni ell roup 5"s, 3 5"s

ithin each group. +o totall* 146A3; Cell %-s e:ist0

represents ell roup 5", value fro& = to 19@4

represents 5" ithin ell roup, value fro& = to 2.

(2)ID

(1)ID

cellID 3 N N N +=

(1)ID N

(2)ID N

%nitial Cell Search'

The initial cell search is carried on after the UE poer on. Usuall),UE doesnHt #no the netor# *andidth and carrier freuenc) at the

first ti&e sitch on.

UE repeats the *asic cell search, tries all the carrier freuenc) in the

spectru& to de&odulate the s)nchroni


16/54


Huawei Confidential

"asic Principle of Ran!om 9ccess '

Rando& access is the procedure of uplin#s)nchroni


17/54

HUAWEI TECHNOLOGIES CO., LTD.Page 1@

Huawei Confidential

"asic Principle of Power Control'

"onlin# poer control deter&ines the EPRE

Energ) per Resource Ele&ent4

Uplin# poer control deter&ines the energ) per

"T-+:"% also called +-"%A s)&*ol.

.plink Power Control'

Uplin# poer control consists of opened loop poer and closed loop

poer control. A cell ide overload indicator :5 is eBchanged over J2 interface for

integrated inter-cell poer control, possi*le to enhance the s)ste&

perfor&ance through poer control.

PU+', PU', PRA' and +ounding R+ can *e controlled

respectivel) *) uplin# poer control. Ta#e PU+' poer control for

eBa&ple!

PU+' poer control is the slo poer control, to co&pensate the pathloss and shado fading and control inter-cell interference. The control

principle is shon in a*ove euation. The folloing factors i&pact

PU+' trans&ission poer PPU+'! UE &aBi&u& trans&ission poer

P%AJ, UE allocated resource %PU+', initial trans&ission poer P:KPU+',

esti&ated path loss P$, &odulation coding factor BT1 and s)ste&

adLust&ent factor f not or#ing during opened loop P

UE report 65

"$ TB Poer

EPRE3 Energ7 per Resource Element(/T?0/(83 (iscrete /ourier Trans)orm 0pread/(8

f(i)}(i) Δ PLα(j)(j) P (i))(M ,{P (i) P TF O_PUSCH PUSCH MAX PUSCH ++⋅++= 10log10min

-ownlink Power Control'

The trans&ission poer of donlin# R+ is usuall) constant.

The trans&ission poer of P"+' is proportional ith R+

trans&ission poer.

"onlin# trans&ission poer ill *e adLusted *) the

co&parison of UE report 65 and target 65 during the poer

control.

67

U$ TB Poer

+)ste& adLust

para&eters

Ph7sical La7er Procedure @ PowerControl


18/54

HUAWEI TECHNOLOGIES CO., LTD.Page 1>

Huawei Confidential

La*er 2 is split into the following la*ers'

%A %ediu& Access ontrol $a)er R$ Radio $in# ontrol $a)er

P"P Pac#et "ata onvergence Protocol

$a)er

Main /unctions of La*er 2'

'eader co&pression, iphering +eg&entation and concatenation, AR6

+cheduling, priorit) handling, &ultipleBing

and de&ultipleBing, 'AR6

La*er 2 Structure for -L La*er 2 Structure for .L

DerDiew o) LTE La7er


19/54


Huawei Confidential

Main functions of M9C La*er'

%apping *eteen logical channels and transport

channels

%ultipleBing8de&ultipleBing of R$ P"Us Protocol

"ata Unit *elonging to one or different radio *earers

into8fro& T/ transport *loc#s delivered to8fro& the

ph)sical la)er on transport channels

Traffic volu&e &easure&ent reporting

Error correction through 'AR6 Priorit) handling *eteen logical channels of one UE

Priorit) handling *eteen UEs d)na&ic scheduling

Transport for&at selection

Padding

Logical Channels of M9C La*er'

ontrol hannel! or the transfer of controlplane infor&ation

Traffic hannel! for the transfer of user plane

infor&ation

M9C La*er

Structure

.L Channel

Mapping of

M9C La*er

Control Channel

Tra8c Channel

-L Channel

Mapping of

M9C La*er

Introduction o) 8.C La7er


20/54


Huawei Confidential

Main functions of RLC La*er' Transfer of upper la)er P"Us supports A% or

U%

T% data transfer

Error orrection through AR6 no need R$

R chec#, R provided *) the ph)sical

+eg&entation according to the si


21/54


Huawei Confidential

Main functions of P-CP La*er' unctions for User Plane! 'eader co&pression and deco&pression!

R:'

Transfer of user data! P"P receives P"P

+"U fro& the NA+ and forards it to the R$

la)er and vice versa

5n-seuence deliver) of upper la)er P"Us at

handover for R$ A% "uplicate detection of loer la)er +"Us at

handover for R$ A%

Retrans&ission of P"P +"Us at handover for

R$ A%

iphering

Ti&er-*ased +"U discard in uplin#

unctions for ontrol Plane! iphering and 5ntegrit) Protection

Transfer of control plane data! P"P receives

P"P +"Us fro& RR and forards it to the

R$ la)er and vice versa

P-CP P-. Structure' P"P P"U and P"P header are octet-

aligned

P"P header can *e either 1 or 2 *)tes long

P-CP La*er

Structure

R9C3 Robust 9eader Compression

P-CP P-. Structure

Introduction o) P(CP La7er


22/54


Huawei Confidential

-ata Transfer in La*er 1 an! La*er 2 "ata fro& the upper la)er are headed and pac#aged, sent to the loer la)er, vice versa.

+cheduler effect in the R$, %A and Ph)sical $a)ers. User data pac#ages are

&ultipleBed in the %A $a)er.

R in Ph)sical $a)er.

0ummar7 o) (ata /low in La7er "&


23/54


Huawei Confidential

8/-M ? 8/-M9 8/-M :rthogonal reuenc) "ivision %ultipleBing

is a &odulation &ultipleBing technolog), divides the

s)ste& *andidth into orthogonal su*carriers. P is

inserted *eteen the :"% s)&*ols to avoid the 5+5.

8/-M9 is the &ulti-access technolog) related ith

:"%, is used in the $TE donlin#. :"%A is the

co&*ination of T"%A and "%A essentiall).

Advantage! 'igh spectru& utili


24/54


Huawei Confidential

-ownlink M%M8 %5%: is supported in $TE donlin# to achieve spatial

&ultipleBing, including single user &ode +U-%5%:

and &ulti user &ode %U-%5%:.

5n order to i&prove %5%: perfor&ance, pre-coding is

used in *oth +U-%5%: and %U-%5%: to

control8reduce the interference a&ong spatial

&ultipleBing data flos.

The spatial &ultipleBing data flos are scheduled to

one single user 5n +U-%5%:, to enhance thetrans&ission rate and spectru& efficienc). 5n %U-

%5%:, the data flos are scheduled to &ulti users and

the resources are shared ithin users. %ulti user gain

can *e achieved *) user scheduling in the spatial

do&ain.

.plink M%M8 "ue to UE cost and poer consu&ption, it is difficult to

i&ple&ent the U$ &ulti trans&ission and relative poer

suppl). Mirtual-%5%:, in hich &ulti single antenna UEs

are associated to trans&it in the %5%: &ode. Mirtual-

%5%: is still under stud).

+cheduler assigns the sa&e resource to &ulti users.

Each user trans&its data *) single antenna. +)ste&

separates the data *) the specific %5%: de&odulation

sche&e.

%5%: gain and poer gain higher TB poer in the sa&e

ti&e-fre resource can *e achieved *) Mirtual-%5%:.

5nterference of the &ulti user data can *e controlled *)

the scheduler, hich also *ring &ulti user gain.

M9)M"MO +irtual)M"MO

8I8


25/54


26/54


Huawei Confidential

%C%C %nterCell %nterference Coor!ination）

55 is one solution for the cell interference control, is essentiall) a schedule strateg). 5n $TE, so&e

coordination sche&es, li#e +R +oft reuenc) Reuse and R ractional reuenc) Reuse can control the

interference in cell edges to enhance the freuenc) reuse factor and perfor&ance in the cell edges.

S/R Solution

+R is one effective solution of inter-cell interference control. The s)ste& *andidth is separated into pri&ar)

*and and secondar) *and ith different trans&it poer.

The primar* )an! is assigne! to the

users in cell e!ge0 The eN" transmit

power of the primar* )an! can )e

high0

Secon!ar*"an!

Cell 2@@4 Primar* "an!

Cell 1 Primar* "an!

Secon!ar* "an!

Cell 3@@5P Primar* "an!

Total S*stem

"$

The total s*stem )an!wi!th can )eassigne! to the users in cell center0 The

eN" transmit power of the secon!ar* )an!shoul! )e re!uce! in or!er to a,oi! the

interference to the primar* )an! of neigh)orcells0

Secon!ar*"an!

Secon!ar*"an!

Cell Inter)erence Control


27/54


Huawei Confidential

Charter 1 LTE Principles




28/54


29/54


Huawei Confidential

/re>uenc* reuse mo!e 1A3A1

/1

/1

/1

/1

/1

/1

/1

/1

/1/1

/1

/1

/1

/1

/1

/1

/1

/1

/1

/1

/1

9!,antages of 1A3A1

-isa!,antages of 1A3A1

'igh freuenc) efficienc), 'igh sector

throughput

"o not need co&pleB scheduling algorith&,

s)ste&

o-freuenc) interference is hard

$o ell edge data rate, difficult) for continuous

coverage.

.se! in limit fre>uenc* )an! an! !iscontinuous co,erage scenario

+111 /T+


30/54


Huawei Confidential

S/R (Soft /re>uenc* Reuse+1A3A1

S/R 1A3A1 with %C%C

S/R 1A3A1 networking merit

"$ 55： cell center use 283 *and， cell edgeuse 183 *and； so, in cell edge, freuenc) reuse

3, different cell edge use different freuenc). TB

poer in cell center loer than cell edge TB

poer to control interference.

U$ 55： cell center use + band， cell

edge use "+ band, so, in cell edge, )reuenc7reuse +, di>erent cell edge use di>erent

)reuenc7# Cell users in same 6T0 transmit in

the odd eDen )rame scheduling , respectiDel7

$oer don interference ith 55

'igh reuenc) efficienc)


31/54


Huawei Confidential

S/R 1A3A1 s //R 1A3A1R 1?3?1 "$GU$

+R1?3?1 "$ +R1?3?1 U$

Similarities

!ifference

+eparate *) the )reuenc7 domain

time domain )or inter)erence

cancellation

F Cell centers use more bandwidth

resources, cell edge use o) about "

+ )reuenc7 bands,

//R use all the sub?carrier in

cell center, 0/R use + sub?carriers

F In (L4L, //R same reuse

mode,, 0/R use di>erent mode

F(L T Power3 0/R3 cell center is

lower than cell edgeH //R3 cell

center is same with cell edge

F 4L )reuenc7 resource3 //R

mode, in cell edge, Aed use "+

o) the )reuenc7 bandH In 0/R

mode, cell edge use partial

band, normall7 near "+ o) the

)reuenc7#

User in ell center and cell edge ithin the cell separate *) ti&e

do&ain， different site cell edge separate *) freuenc) do&ain4

"$ cell center decrease TB poe； U$ in cell edge， different cell

separate in freuenc) do&ain， User in ell center and cell edge

ithin the cell separate *) ti&e do&ain


32/54


Huawei Confidential

/re>uenc* reuse mo!e 1A3A3

9!,antage of 1A3A3

-isa!,antage of 1A3A3

$o co-freuenc) interference, good coverage

'igh sector throughput

$o freuenc) efficienc)

%ore freuenc) resource reuired

.se! in rich fre>uenc* resource an! !iscontinuous fre>uenc* )an! co,erage

+111 /T+

/3

/2

/1

/3

/2

/1

/3

/2

/1/3

/2

/1

/3

/2

/1

/3

/2

/1

/3

/2

/1


33/54


Huawei Confidential



/re>uenc* Planning

Co,erage Planning

Capacit* Planning



34/54

'UAE5 TE'N:$:5E+ :., $T". Page 34'uaei onfidential

Link "u!get Proce!ure

Start

En!

%nput -ata

Calculate .LD-L M9PL

Calculate .L cell ra!ius Calculate -L cell ra!ius

"alance cell ra!ius

Calculate site num)er

Calculate site co,erage area


35/54


.E Transmit Power

.E 9ntenna #ain

eNo!e"9ntenna #ain

8ther #ain Slow fa!ing margin

%nterference margin

"o!* Loss

eNo!e"

Ca)le Loss

Penetration Loss

Path Loss

eNo!e" recei,e

sensiti,it*

P a t h L o s s

Ca)le Loss

9ntenna #ain

eNo!e" recei,e sensiti,it*

Penetration Loss

Link "u!get Mo!el' .plink

.E transmit power

.plink "u!get

#ain

Margin

Loss


36/54


eNo!e" TransmitPower

No!e" 9ntenna #ain

.E 9ntenna #ain

8ther #ain Slow fa!ing margin

%nterference margin

"o!* Loss

Ca)le Loss

Penetration Loss

Path Loss

.E recei,e sensiti,it*

Link "u!get Mo!el' -ownlink

P a t h L o s s

Ca)le Loss

9ntenna #ain

eNo!e" transmit power

Penetration Loss

.E recei,e sensiti,it*

-ownlink "u!get

#ain

Margin

Loss


37/54


Link "u!get Principle

Link )u!get is aim to calculate the cell ra!ius0

ell radius can *e calculated *) %AP$ ith using propagation &odel

Two ke*s factors'

%AP$

Propagation %odel

M9PL' %aBi&u& Alloed Path $oss

E%RP' Effective 5sotropic Radiated Poer

MSSR' %ini&u& +ignal +trength Reuired

Cm H a LuTotal UE +−= )()lg())lg(55.69.44()lg(82.13)lg(9.333.46 H H f Lu !S !S ××−+×−×+=

)8.0)lg(56.1()7.0)lg(1.1()( −×−×−×= f H f H a UE UE

Cost231uire! F#ain FLoss FMargin

E%RP ; %aB TB Poer - a*le $oss - /od) $oss I Antenna ain

MSSR ; RB +ensitivit) - Antenna ain I a*le $oss I /od) $oss I5nterference %argin


38/54


Huawei Confidential

8.PL Calculation Process S*stem parameter

07stem /reuenc7 6and, 6and width, duple mode

E%RP

60 T Power, .ntenna Gain, /eeder loss

Minimum Recei,er Signal Le,el

ReceiDer sensitiDit7, Noise /igure, (emodulation Threshold, .ntenna

gain, )eeder loss, bod7 loss#

S*stem gain@ Margin@ Loss

8I8 Gain, other gain

0hadow /ading 8argin, Inter)erence margin

Penetration losss


39/54


Huawei Confidential

CoDerage Planning ComparisonLTEC(8. i8.

LTE Protocal deAned working band is )rom 5$$89JK#erent in LTEC(8.ima# LTE and i8. adopt /(8. as their access technolog7, )or a single user,

through s7stem scheduling, using di>erent No# o) sub?carrier to meet the di>erent

coDerage reuirement# Compare with C(8., C(8. users adust T power in

"#''8 to meet the coDerage reuirement 8I8 technolog7 is used in LTE & i8., di>erent 8I8 mode bring

corresponding 8I8 gains, like C(8. 60 receiDing diDersit7 gain, which lower

down the demodulation threshold# 8odulation mode :P0; 、 "


40/54


Huawei Confidential



/re>uenc* Planning

Co,erage Planning

Capacit* Planning



41/54


Huawei Confidential

Capacity *nalysis Concept

Traffic mo!el anal*sisDre>uirement anal*sis!

+pecif) custo&er reuire&ents, e.g. Target users

nu&*er, user /' active ratio, service *earing rate,

over*oo#ing, cell edge access rate, average data

rateO

Singleuser throughput ? No of /' Users ;

Network throughput

Configuration 9nal*sis! reuenc) reused &ode,

/andidth, carrier configurations, %5%:

configurations etc.

Singlesite Capacit*! single site capacit) calculated

fro& s)ste& si&ulation after configuration anal)sis

Num)er of sites' Netor# throughput reuire&ent 8

+ingle site apacit)

Traffic mo!el anal*sis

D re>uirement anal*sis

Singleuser

throughput

Singlesite

capacit*

Num)er of sites

Configuration

anal*sis

Network Throughput


42/54


Huawei Confidential

Capacity Estimation &eali:ationProcess

:*tain the cell radius in different scenarios according to the lin# *udget.

According to the radius, search the si&ulation data ta*le and then o*tain the

cell 5NR pro*a*ilit) distri*ution. urrentl), calculate the 5NR distri*uting

ratio ith different cell radiuses in different scenarios according to the %atla*le

progra& provided *) the RTT lin# *udget.

alculate the cell &ean throughput.

∑=

×= N

i

ii T"#ou$"%ut P ou$"%ut C&llA'$T"# 1

/ormula of calculating the cell mean throughput

Pi is the pro*a*ilit) corresponding to 5NR

Throughputi is the throughput calculated on a *asis of 5NR. According to different

5NRs, search the ta*le to o*tain different &odulation sche&es and then o*tain

the Throughputi in different &odulation sche&es.

。

Cell &adius

C," Pro%a%ility distri%ution

-imulation result

Cell mean throughput ratio


43/54


Huawei Confidential

;e7 per)ormance baseline

-cenario

Cell &adius ;km< = 9L edge

>?@AB7k%ps

*$g# Cell Throughput L,9L ;M%ps< =BMD:

3

7#>0D: 7#B0D: *- MD: 7#>0D: 7#B0D: *- MD:

(ense

4rban

$#"K$#

++$#


44/54


Huawei Confidential



/re>uenc* Planning

Co,erage Planning

Capacit* Planning



45/54


46/54


Huawei Confidential

4?Net3 Pro)essional LTE RNP Tool hat is 9)NetH

9)Net is the pro(essional LTE simulation tool de$eloped %yDuawei#

9)Net is %ased on the a%undant glo%al &NP e1periences#


47/54


Huawei Confidential

4?Net3 Power)ul and 0aDing hat can 9)Net doH

/unction' Network mo!eling'

5+ Antenna &odel Netor# ele&ent &anage&ent +ervice &odel &anage&ent Propagation &odel tuning G &ngt.

Co,erage Pre!iction' Path loss calculation Pol)gon operation overage plot generation Point anal)sis %onte arlo si&ulation

LTE Specific Planning' P5 planning Neigh*or list planning reuenc) planning

"enefit' Accurate prediction Eas) operation and friendl) interface +aving 'R cost due to higher planning efficienc). $oer technical level reuire&ent *) Professional functions


48/54


Huawei Confidential

9uawei LTE Enhancement /eaturesPer(ormance

Enhancement Feature9L ,L

E1pected"mpro$em

entComments

"nter(erencecancellation

IRC

9L B@Ad3

The more serious inter)erence condition,the more obDious the IRC gain will be#

&ecei$e di$ersity

- receiDing antennas 9L 7#Ad3

+ d6 in theor7# Considered the co?relate

between real antenna, #*d6 is the

practical gain#

*d$anced scheduling/reuenc7 domain packet

schedule

9L I

LB@/d3

K+d6 gain when cell edge userthroughput *$$;bps, "Kd6 gain when

cell edge user throughput "8bps

Power Con$ergence

- TTIs 6undling 9L B#A@/d3

6undle seDeral TTIs together )or a single

!oIP packet transmission# Power

conDergence#

3- fe1i%ility

RR4 installed near the

antenna

9L IL

7#Ad3

Roo)top site, t7pical cable loss )or 6T0 is

+d6, )or RR4 is $#*d6 1umper loss2#.ssume there is no T8.#

3!"i&prove&ent

2G cell radius

increase

3G sites uantit)

reduction


49/54


Huawei Confidential

0uard %and &e5uirement (or Co)e1isting -ystems ;MD:<

Co)e1isting -ystems

-ystem -tandards LTE 3andwidth

LTE Other system AMD: BMD: BAMD: 7MD:

LTE J 0-M

protocol protocol $# $# $# $#

Duawei

Productprotocol

LTE J 9MT-protocol protocol $#++ $#$' $#"5 $#-

Latest M-& protocol

LTE J CM*

protocol 9uaweiProduct

$#- $#-M $#5- $#MM

Duawei

Product

Duawei

Product

LTE 3and 6 J LTE 3and protocol protocol $ $ $ $

LTE F J LTE T protocol protocol "$ "$ "$ "$

LTE T 7#/0 J T)-CM*

7#/0

protocol protocol $ $ $ $

.Doid Inter)erence

uard *and can *e eli&inated *) deplo)ing 'uaei RAN products

Cosite Scenario'

Avoid far-near effect, lessinterference

Non Cosite Scenario'

AdLacent freuenc) interferenceill *e &uch higher

o-site solution is reco&&ended *) 'uaei


50/54


Huawei Confidential

Co?.ntenna/eeder .nal7sis

Co)antenna,(eeder with 70,/0 system

Coantenna 9nal*sis

"enefit' No &ore antenna installation space

Risk' Additional dipleBers cause insertion loss an not adLust a


51/54


Huawei Confidential

0eparate .ntenna/eeder .nal7sis

Separate antennaDfee!er for LTE

LTE2#D3#

-isa!,antage' Reuire &ore toer

installation space4

Reuire higher toer load.

9!,antage'

5ndividual netor# planningfor $TE!

No additional feeder andconnector loss for $TE4

No negative i&pact to283 netor#.

onvenience and accurac)netor# opti&i


52/54


Huawei Confidential

Conclusion' +elect the o-antenna8feeder solution

*ased on the real situation Need to evaluate and *alance the

*enefits and ris#s of the solution

T7pical Co?antenna)eeder 0olutions

LTE LTE LTE

0 ports antennao-feeder

Risks' Additional loss *) co-feeder ill! Reduce 11H1G cell radius 5ncrease 24H3G site uantit)2.9'HH feeder

2 ports antennao-feeder

0 ports antennaRRU inst. near antenna


53/54


Huawei Confidential

Reuse and 4pgrade Legac7 (.0

'igh freuenc) 2.9'


54/54

Ltenetworkplanninghuaweitechnologies 150822100037 Lva1 App6892

Documents

Transcript of Ltenetworkplanninghuaweitechnologies 150822100037 Lva1 App6892