eran3.0 lte tdd ta planning and configuration guide v1.0

7/22/2019 eRAN3.0 LTE TDD TA Planning and Configuration Guide v1.0

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eRAN3.0 LTE TDD TA Planningand Configuration Guide

Issue 3.0

Date 2012-03-2

!"A#EI TEC!N$L$GIE% C$.& LTD.


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Co'(rig)t * !ua+ei Te,)nologies Co.& Ltd. 2012. All rig)ts resered.

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Tradear/s and Perissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Noti,e

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. nless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided !A" #"! without warranties, guaranteesor representations of any kind, either e$press or implied.

The information in this document is sub%ect to change without notice. &very effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, e$press or implied.

Huawei Technologies Co., Ltd.

Address' Huawei #ndustrial (ase

(antian, Longgang

"hen)hen *++-

/eople0s 1epublic of China

2ebsite' http'33www.huawei.com

&mail' support4huawei.com

Issue 3.0 (2012-03-29) Huawei Proprietary and Confidential

Copyright Huawei !e"hnologies Co.#

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http://www.huawei.com/mailto:[email protected]://www.huawei.com/mailto:[email protected]


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e%&'3.0 $! ! !& Planning and Configuration

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&+out !his o"u,ent

About This Document

Author

Prepared by Date yyyy-,,-dd

Reviewed by Date yyyy-,,-ddReviewed by Date yyyy-,,-dd

Approved by Date yyyy-,,-dd

Change History

Date Version Description Author

2011-12 0.1 Co,pleted the draft. !$ %'P group



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Contents

Contents

About This Document........................................................................................................................1

About This Document........................................................................................................................1

1 Overview..........................................................................................................................................1

1.1 !& /un"tion..................................................................................................................................................... ........1

1.2 !& Planning Prin"iples................................................................................................................................. ......... ..1

!ocation "anagement....................................................................................................................1

2.1 !& anage,ent....................................................................................................................................................1

2.1.1 ultiple !&s......................................................................................................................................................1

2.1.2 !& olution.....................................................................................................................................................1

2.2 Paging olution........................................................................................................................................................2

2.2.1 Paging Channel and Para,eters................................................................................................................. .......2

2.2.2 Paging Pro"ess...................................................................................................................................................

# TA and TA! P$anning.....................................................................................................................%

3.1 $i,itation of the tandard !& Configuration..........................................................................................................

3.2 !&$ Configuration olution....................................................................................................................................

3.3 !& and !&$ Planning olution................................................................................................................................9

3.3.1 !& and !&$ Planning Pro"edure................................................................................................................ .......9

3.3.2 !& and !&$ Planning ethods............................................................................................................. .......... ..9

3.3.3 "enario-spe"ifi" !& and !&$ Planning olutions............................................................................... ......... .12

& Paging Capacity Ana$ysis.............................................................................................................1%

.1 /a"tors &ffe"ting the Paging Capa"ity......................................................................................................... .........1

.2 Paging Capa"ity &nalysis on the and e'ode4 ...........................................................................................15

.2.1 Paging Capa"ity &nalysis on the ..........................................................................................................15

.2.2 e'ode4 Paging Capa"ity &nalysis................................................................................................................ ..15

.2.3 !&$ sti,ation +ased on the Paging Capa"ity........................................................................................ .......22

' P$anning Too$ Con(iguration ......................................................................................................&

6.1 !& Planning !ool............................................................................................................................................. ......2

6.2 !& and !&$ Configuration............................................................................................................................. .......26

6.2.1 !&C Configuration on the e'ode4........................................................................................................... ......26

6.2.2 !&$ Configuration on the ............................................................................................................... ......25



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Contents

) *ummary.......................................................................................................................................+

% P, and PO Ca$cu$ation.................................................................................................................#-



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Abbreviations and Acronyms

Abbreviation or Acronym ,u$$ spe$$ing

$! $ong !er, 7olution

e'4 -!%&' node4

,o+ility ,anage,ent entity

-*8 ser7ing gateway

!& tra"ing area

%& routing area

!&C tra"ing area "ode

!&I tra"ing area identifi"ation

!&$ tra"ing area list

!& tra"ing area update

!I te,porary ,o+ile su+s"ri+er identity

II international ,o+ile su+s"ri+er identity

-!I &-te,porary ,o+ile su+s"ri+ers identity

PC paging "y"le

P/ paging fra,e

P: paging o""asion

C% s"hedule "ode rate

C%$ CC aggregation le7el

C: "o7erage



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1 :7er7iew

1 Overview1.1 TA ,unction

!ra"ing area (!&) is a new "on"ept de7eloped in the $ong !er, 7olution ($!);yste,&r"hite"ture 7olution (&) for user e


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1 :7er7iew

!ocation "anagement$o"ation ,anage,ent solutions in"lude the !& ,anage,ent solution and paging,anage,ent solution.

.1 TA "anagement

.1.1 "u$tip$e TAs

!he 3*PP %elease 5 proto"ol defines the ,ultiple !&s solution for ,anaging lo"ation.:ne !&$ is "o,posed of ,ultiple !&s. !hese !&s are allo"ated to the sa,e . !&s are notre

!he dete"ts a !& that is not in"luded in the !&$.



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1 :7er7iew

!he in the !%&' P?Conne"ted state (su"h as %&?PCH) resele"ts -!%&'.

!he in the *P% %&@ state resele"ts -!%&'.

!he *!I state needs to +e updated. /or eAa,ple# the *%&' or !%&' ,odifies the

+earer "onfiguration. &n %%C "onne"tion is released to a"hie7e load +alan"e.

!he "apa+ility for "o,,uni"ating with the PC "hanges.

!he sends a new !&$ to the during the !&. Huawei produ"ts do not supportdyna,i" !&$ updates and -"lass !&$ "onfiguration. !herefore# the !&s with ping-pong!&s are planned in the sa,e !&$ to redu"e signaling o7erheads.

!he !& pro"ess o""upies so,e uplin +andwidth o7er the radio interfa"e and"o,,uni"ation resour"es in the C'. /re

!he sends a paging ,essage to the in idle ,ode. /or eAa,ple# the re"ei7es "alls fro, other s.

!he -!%&' sends syste, update ,essages to s in idle or "onne"ted ,ode.

!he -!%&' sends arth


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1 :7er7iew

,igure 1.1 apping +etween the three types of downlin "hannels

&s shown in the pre"eding figure# paging ,essages are transported o7er the PCCH# and PCHdata +lo"s are transported o7er the PCH. In addition to paging ,essages# the PCH "an"arry the $-CH.4efore re"ei7ing paging ,essages# the ,ust listen to the PCCH to"he" whether the PCCH "arries a paging-radio networ te,porary identifier (P-%'!I). Ifthe PCCH "arries a P-%'!I# the deter,ines whi"h sends the paging ,essage.

2. Paging "onfigurations

!he -!%&' periodi"ally sends a paging ,essage at the paging o""asion (P:). :ne page,essage ,ay in"lude paging infor,ation a+out ,ultiple s. !he following des"ri+es thefra,e stru"ture and para,eter "onfigurations.

Paging % "y"le

&n idle is allo"ated only one P: (one or ,ultiple !!Is) during one PC. !o redu"e power"onsu,ption# s use dis"ontinuous re"eption (%). /or a # a PC is also referred to as apaging % "y"le.

Paging "y"les (PCs) are "lassified as the default PC and -spe"ifi" PC. In the default PC#32# B# 125# or 26B fra,es "an +e "onfigured on the :C# whi"h are sent to the using thede(autpagingcyc$epara,eter in I4-2.

Paging fra,e and paging o""asion

& paging fra,e (P/) is defined +y a paging fra,e nu,+er (P/') within a PC. & P: thesu+fra,e within a P/ o7er the PCCH to +e interpreted +y the .

!he following figure shows the relationship +etween the paging % "y"le# P/# and P:. !hePC e


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1 :7er7iew

,igure .1 /ra,e stru"ture when the P/# P: and % "y"le are 1250 ,s

& paging % "y"le is spe"ified +y the de(au$tPagingCyc$epara,eter. It ,ust +e set +asedon networ "onditions. & short % "y"le de"reases the paging ti,e and the power"onsu,ption is in in7erse proportion to the paging % "y"le.

!he nu,+er of P/s and nu,+er of P:s are spe"ified +y the n/para,eter.

:ne paging ,essage ,ay in"lude paging infor,ation for ,ultiple s. !hat is# ,ultiple s"an share the sa,e P:. !he 7alue of the 02Dpara,eter ranges fro, 0 to 1023. !he 7alueof the 02Dpara,eterise


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1 :7er7iew

signaling "onne"tion +etween the and the networ. !he paging pro"ess is as follows>

1. !he sends an 1-&P paging ,essage o7er the 1 interfa"e to all e'ode4s in the! re


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1 :7er7iew

ma34oO(PagingRecords para,eter spe"ifies the ,aAi,u, nu,+er of paging re"ordsat a P:. !he 3*PP proto"ols spe"ify that a ,aAi,u, of 1B paging re"ords "an +e"onfigured.

,igure 1.1 %e"o,,ended nu,+er of paging re"ords in different +andwidth "onfigurations

/andwidth ' "H5 1- "H6 1' "H5 - "H5

"a3imum 4umber O(

Paging Records

1B 1B 1B

& paging ,essage has a higher priority than user data. !herefore# if the nu,+er of pagingre"ords rea"hes the upper li,it# user data "annot +e trans,itted. /or eAa,ple# if pagingre"ords are "onfigured in the +andwidth of 6 H=# paging re"ords o""upy all +andwidth anduser data "annot +e trans,itted due to la" of +andwidth. If the nu,+er of paging re"ords"onfigured eA"eeds the ,aAi,u, nu,+er of paging re"ords in the pre"eding ta+le# so,epaging ,essages "annot +e trans,itted.

If a does not find its I in the paging ,essage# it enters the % state. If a findsits I in the paging ,essage# it sends a ser7i"e re


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3 !& and !&$ Planning

# TA and TA! P$anning#.1 !imitation o( the *tandard TA Con(iguration

!he standard !& "onfiguration is used in the PC +efore the !&$ is put into use. !he standard!& "onfiguration is defe"ti7e in the following aspe"ts>

& single !& "an in"lude a ,aAi,u, of 100 e'ode4s.

8hen the "onfiguration of a "ell in the !& "hanges# the "ell ,ust +e reset# interruptingser7i"es.

In the standard !& "onfiguration# "ells in a !& do not o7erlap with ea"h other and ea"h "an +e registered with only one !&. If s at the !& edge fre


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!&s are a7oided.

!he $! te"hnology introdu"es "on"epts si,ilar to the *' pool and pool area. &n pool area is defined as the radio a""ess networ ser7ed +y a group of s. If a ,o7es in an pool area# the ser7ing does not "hange.

,igure 1.1 !& and pool area di7ision

""0

poo$

""0

poo$

Possi+le !&$

&ssign,ents to 0s

!& "onfiguration

(non o7erlapping)

,igure 1. Cell-"lass !& di7ision in an pool

If an e'ode4 "onne"ts to ,ultiple s# the e'ode4 ,ust sele"t an for a .&ssu,e that a has atta"hed to an # to redu"e PC signaling load# re,ains the"onne"tion with the on "ondition that it ,o7es in the "on7erge area asso"iated with the. !his redu"es the PC signaling load. !he "on7erge area is defined on the %&' side. Itin"ludes one or ,ultiple !&s ser7ed +y a group of s. :ne or ,ultiple s ser7ing the

"on7erge area "an pro7ide ser7i"es for !&s outside the "on7erge area. !he group is"alled an pool.

&n pool area is defined to ensure the is ser7ed +y the sa,e within a "on7ergearea# redu"ing PC signaling o7erhead. Con7erge areas of different s "an o7erlap withea"h other.

s in the sa,e pool area "an "onne"t to all e'ode4s in this area. !his ensures that s in thepool area do not need to update the "onne"tion to the .

ifferent "ells under the sa,e e'ode4 "an +elong to different !&s. :ne !& "an +elong todifferent pool areas.



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#.# TA and TA! P$anning *o$ution

!& and !&$ planning is to deter,ine the si=e of a !& and !&$ and the +order. !he !& and!&$ si=e is defined as the nu,+er of e'ode4s in the !& or !&s in a !&$. If only a few

e'ode4s are in a !&$# !&s ,ay o""ur fre


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!he !&$ si=e is esti,ated +ased on the following para,eters>

paging 7olu,e> in"ludes the nu,+er of +oards in an and +oard paging7olu,e.

e'ode4 paging 7olu,e> in"ludes the paging load pro"essed +y the CP# paging

o7erhead allowed +y the PCCH and PCH# and paging +lo"ing rate.

aAi,u, nu,+er of s "on"urrently atta"hed to the networ in the ser7ed area of an

Paging arri7al rate during +usy hours# whi"h depends on the paging traffi" ,odule

type supported +y an e'ode4 and the nu,+er of s under ea"h e'ode4

4usy-hour paging traffi" ,odule of s

!he networ traffi" ,odels 7ary with areas or woring ti,e. !he paging 7olu,e is different indifferent 7ersions. !he nu,+er of s "hanges with ti,e.

& s,all !& is re"o,,ended to ensure the fleAi+ility of the !&$ re"onfiguration.

!he ,ini,u, nu,+er of e'ode4s or "ells supported +y !&s in a !&$ depends on the paging"hannel "apa"ity. !he !&$ si=e "hanges with the traffi" "hange in !&s. !he nu,+er ofe'ode4s supported in ea"h !&$ depends on the e'ode4 spe"ifi"ations and esti,ated paging"apa"ity. Considering future "apa"ity eApansion# 20G ,argin is reser7ed +ased on the initiallyplanned !&$.

uring the $! networ deploy,ent# operators ,ay re

1) In the stati" !&$ "onfiguration# !&s in the !&$ "annot o7erlap with ea"h other.

2) !he lo"ation where !& o7erhead in"reases fre


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are not in the ser7i"e area. &fter the prote"tion period ends (the o+ility %ea"ha+le !i,er andI,pli"it eta"h !i,er eApire)# the e'ode4 regards that the II is i,pli"itly deta"hed andthe deletes "onteAt# in"luding the !&$# !&I of last !& and *!1. o,e sentering an ur+an area fro, a su+ur+an area do not i,,ediately perfor, !&s +e"ause the!&$ of the ur+an area is different fro, that of the su+ur+an area. *enerally# to ensure that

s are in the ser7i"e area# su+ur+an areas use independent !&$s whi"h are distri+uted as a"on"entri" "ir"le. !he internal "ir"le ,ay "ontain ,ultiple !&s due to "apa"ity li,itation. !hefrag,ent ,ethod or a traffi" "ir"le ,ethod or +oth of the two ,ethods are used. Pra"ti"e haspro7ed that the !&$ di7ision ,ethod "an in"rease the possi+ility that s are in the ser7i"earea and i,pro7e the "all "o,pletion rate and "all setup rate.

,igure .1 !&$ di7ision for ur+an and su+ur+an dis"ontinuous "o7erage

1) *eographi"ally# the !&$ is a "ontinuous area.

!he !&$ is di7ided +ased on the distan"e to ensure that geographi"ally areas are "ontinuous.!he !&$ +order "an +e slightly adusted +ased on the original traffi" statisti"s and the 7isualdisplay of the *oogle arth ,ap.

2) &ll !&s in the sa,e !&$ are ser7ed +y the sa,e .

!he $! proto"ols spe"ify that !he $! proto"ols spe"ify that !&$s "an +e di7ided +ye'ode4 when ,ultiple s share the sa,e ho,e su+s"ri+er ser7er (H). :ne e'ode4,ay +e ser7ed +y ,ore than one . Howe7er# in pra"ti"e# !&$s are not di7ided +ye'ode4. :therwise# paging ,ay +e perfor,ed through two routes under two s. !his isunpra"ti"al. *enerally# s do not share the sa,e H and one !&C and !&$ "an +eser7ed +y only one .

3) !he ,ountains and ri7ers are used as the !&$ +order to redu"e the o7erlapping degree ofdifferent "ells and ,ini,i=e the "ost of !&$ +order updates.

!he geographi" infor,ation syste, (*I) of the "urrent networ planning tool "annotre"ogni=e surfa"e and terrain features. !herefore# !&$ planning is perfor,ed +ased on thead,inistrati7e di7ision ,ap. &fter the area to +e planned is di7ided +ased on large ,ountainsand ri7ers# adust area di7ision plan.

If there are ,ore than two !&$s in large "ities with hea7y traffi"# the ,ountains and ri7ers inthe "ity "an +e used as the +order to redu"e the o7erlapping degree of "ells in the two !&$s. Ifa "ity does not ha7e large ,ountains and ri7ers# you are ad7ised not to di7ide the !&$ +ystreet and the +order "annot +e set at the pla"e with hea7y traffi" su"h has shopping ,alls. &tthe +oundary of an ur+an area# the !&$ +order is set at the su+ur+an pla"e where e'ode4s arelo"ated not in the pla"e with hea7y traffi". !his a7oids fre


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) In outdoor s"enarios# the $! networ wors at +ands / and . !&$s "an +e di7ided+ased on the fre


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load# the paging area ,ust +e ,ini,i=ed. Howe7er# in so,e s"enarios# the paging area ,ust+e large. /or eAa,ple# when s ,o7e at a high speed at the pla"es su"h as the ,etro or new,ain line# espe"ially at the rush hours in woring days# signaling load is hea7y in the PC. Indensely-populated ur+an areas# different !&$ si=es are "onfigured for s in differents"enarios.

2. %&'-sharing s"enario-/or+idden !&

In %&'-sharing s"enarios# a fiAed +order is allo"ated to so,e s in the networ. :nly sin the sharing area "an enter the networ.

3. &P "onfiguration in ho,e appli"ation s"enarios-/or+idden !ra"ing &rea

8hen &Ps are "onfigured in ho,e appli"ation# the nu,+er of s ,ust +e li,ited. !herefore#the !&$ "onfigured for &Ps ,ust +e different fro, that "onfigured for the pu+li" networ.!his ensures that the !& is ,andatorily perfor,ed when the s not allowed to "onne"t tothe &P perfor, &P resele"tion fro, a ,a"ro "ell. In this way# so,e s are for+idden toa""ess the &P.

. PC-sharing s"enario

8hen the PC is shared# that is# %&'s of different operators "onne"t to the sa,e PC# a,andatory +order ,ust +e set for %&'s of different operators# eA"ept that there is paging"oordination +etween nodes in the PC. !he sa,e poli"y "an +e used in the inter-%&!s"enario where the and *' are "onfigured on different entities.

Paging *cenarios and TA! P$anning *o$utions

!he following des"ri+es !&$ planning solutions for three ,o+ility s"enarios.

1) odel 1 D$os &nglesD

In $os &ngles s"enario# ,o+ility ,anage,ent o""urs in areas si,ilar to islands "onne"ted +y

freeways. !hese areas are with different population density. u+s"ri+ers fro, different areasha7e to "o,,ute +etween different areas for daily a"ti7ities. /or eAa,ple# woring peopleha7e to "o,,ute a,ong 4# and C through # as shown in /igure .1.

,igure &.1 $os &ngeles> Islands "onne"ted +y freeways# with "o,,uter routes



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1esidential Area A

Commercial Area (

Commercial Area C

Commuter

Traffic 1oad 5


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& is a residential area with a great nu,+er of su+s"ri+ers# +ut they are s"attered. !hey slightly"o,,ute to other areas and use ,ostly the telephone. o,e fa,ilies are e


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wor and li7e in this area. !herefore# ,o+ility ,anage,ent ,ainly o""urs in ea"h area.

,igure &.# $ondon> e


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% fo"uses on densely-populated areas# su"h as !oyo in Japan. Population density +etweennight and day 7aries greatly in these areas. In the ,orning# a great nu,+er of su+s"ri+ers taeele"tri" +uses to the "ity "enter. !his +rings "o,,uni"ations ser7i"e +urst# espe"iallyregistration ser7i"es# su"h as !oyo "ity rings. %egistration ser7i"es ha7e a higher priority that7oi"e and data ser7i"es. !his seriously affe"ts ser7i"e

TA-,TA>,TA?

TA>, TA?,TA*



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& Paging Capacity Ana$ysis&.1 ,actors A((ecting the Paging Capacity

/a"tors affe"ting the paging "apa"ity are as follows>

:n the networ>

'u,+er of s in idle ,ode registered with an

'u,+er of e'ode4s in7ol7ed in a !&$ asso"iated with an idle registered with an

K !he !&$ si=e ,ust +e proper. :therwise# the following pro+le,s ,ay o""ur>

If the !&$ si=e is too large# due to the paging "apa"ity li,it of the and e'ode4#the nu,+er of e'ode4s in7ol7ed in a !&$ "annot eA"eed the ,aAi,u, nu,+er of

e'ode4s allowed +ased on the ,aAi,u, paging "apa"ity. If the !&$ si=e is too s,all# there are ,any !&$s. &""ordingly# the paging delay

in"reases and !&s o""ur fre paging retrans,ission ti,er# nu,+er ofretrans,ission ti,es# and dis"arding ti,er

On the RA4>

K Paging period> spe"ified +y the de(au$tPagingCyc$epara,eter.

K 'u,+er of e'ode4s at the P:

K 'u,+er of s in"luded in a paging group> spe"ified +y thema34oO(PagingRecordspara,eter.

K !i,e distri+ution ,odel for networ-triggered ser7i"es> refers to paging distri+utionti,e ,odel

K !& load and !& period

K !& si=e and nu,+er of !&s in"luded in a !&$

K 'u,+er of s ,o7ing at a high speed

& tradeoff ,ust a"hie7e +etween the P& si=e and the !& si=e. If the !& si=e is too large# thesignaling load is hea7y. If the paging area is too s,all# !&s ,ay o""ur fre


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registration. In addition# the ,ultiple-!& solution has low re

000B02.0

3B00

1.2=

pages;(su+Ms)

&ssu,e that an C supports a ,aAi,u, of 600 thousand users and the ,aAi,u, Cpaging "apa"ity is used# a !&$ "an in"lude B e'ode4s. !he "al"ulation for,ula is asfollows>

6B000B020600000

1000.

.*=

!he nu,+er of e'ode4s supported +y the e

!o page one # the send a paging ,essage to all e'ode4s in"luded in the !&$.

!he nu,+er of paging ti,es per user per se"ond is 0.000B02.

!he support a ,aAi,u, of 600 thousand users (ea"h se"ond# the "an page s in7ol7ed inonly one !&$ and paging for s in7ol7ed in ,ultiple !&$s are parallel. !hat is# one !&$ ,ay"onsu,e the ,aAi,u, paging "apa"ity of the ).

/or eAa,ple# in the pre"eding paging o7erheads# the supports B e'ode4s.

In pra"ti"e# 600 thousand users are "arried +y at least two Cs# ea"h of whi"h "arries 260thousand users. !herefore# a !&$ "an in"lude at least 92 e'ode4s. !he "al"ulation for,ula isas follows>

90.92000B02.0M260000

1000=

In su,,ary# the following fa"tors affe"t the nu,+er of e'ode4s in"luded in a !&$>

Paging "apa"ity

paging traffi" ,odel

'u,+er of users

&.. e4ode/ Paging Capacity Ana$ysis

!he e'ode4 paging perfor,an"e depends on the CP "apa+ility and the paging resour"esallowed. If there are suffi"ient paging resour"es# the paging perfor,an"e is high.

!he e'ode4 paging perfor,an"e is related to the following four para,eters>

PCH load



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PCCH load

CP load

Paging +lo"ing

1. Paging "apa"ity and PCH load

!he PCH paging load is related to the following fa"tors>

PC> Configured +ased on operatorFs re epends on the s"heduling "ode rate (C%) and resour"eallo"ation type.

If the -!I is paged# the load of the %4 used to trans,it a paging ,essage o7er thePCH is "al"ulated using the following for,ula>

cP/nPs*SCR*eR*odtypM

kunP*iUroundupbR

pagingdschP

agingPschPd

+

=

indi"ates other infor,ation in"luded in a paging ,essage# su"h as syste,Infoodifi"ation and etws-Indi"ation.

!he 3B.331 proto"ols spe"ify that the length of the -!I I is 0 +its# 0 (-!I) N 1 (C'-o,ain)O 1 +its. /or the +yte se


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Paging ser7i"es ha7e higher priorities than other data ser7i"es. Paging ser7i"es with a highpriority ,ay redu"e the downlin ser7i"e "apa+ility and 7alid +it rate. !herefore# PCHresour"es "onsu,ed +y paging ser7i"es ,ust +e ,aintained at an appropriate range.

!he PCH load is defined as P)SC%oadC .

!he nu,+er of s"heduling +lo"s ( page#n S2 ) "onsu,ed +y the PCH in trans,itting a

paging ,essage is "al"ulated using the following for,ula>

B56.11B00;200n page# ==S2

K spage13 > Indi"ates the nu,+er of paging re"ords re"ei7ed +y the e'ode4 ea"h

se"ond.

K frameS2n # > Indi"ates the nu,+er of s"heduling +lo"s in"luded in ea"h fra,e# as

shown in the following ta+le.

,igure 1.#'u,+er of s"heduling +lo"s in"luded in ea"h fra,e at different +andwidth

/andwidth ' "H5 1- "H5 1' "H5 - "H5

frameS2n # 260 600 60 1000

pageS21n indi"ates the nu,+er of s"heduling +lo"s o""upied +y a single page ,essage. !he

load for pro"essing spage3

# paging messages is ca%cu%ated using the fo%%oing formu%a>

frame1S2

s1pagepage1S2

P)SCn

3*n4

100=

In other words# the ,aAi,u, fra,e load re"ei7ed +y the e'ode4 deter,ines the nu,+er ofpaging re"ords pro"essed +y the PCH and the "apa"ity the e'ode4 pro"esses pagingre"ords. !he "al"ulation for,ula is as follows>

page1S2

ma51P)SCframe1S2

P)SC%oadn

4*!00nC =

!he paging "apa"ity of the PCH on the e'ode4 is "al"ulated using the following

for,ula>

15B56.1

03.0M1000M100

B56.1

MnM100 ,aA#fra,e#load ===

P)SCS2

P)SC

4C pagingre"ords;s

2. Paging "apa"ity and PCCH load

!he PCCH paging load is related to the following "onfigurations and re

PCH C:> epends on the C%$.

!he paging load of the PCCH CC is "al"ulated using the following for,ula>

cP/snP*CR4ceCpagingagingPdcchP

=



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&ssu,e that the C%$ e

00251125 == ./*ceC agingPdcchP CCs per se"ond

,igure 1.& !a+le -3 PCCH paging load o7erhead analysis

Channe$ Resources PDCCH CC08s

%esour"e $oad &,ount 00

%esour"e $oad Per"entage 10 H= 0.95G

20 H= 0.5G

In ea"h !!I (1 ,s)# 1 CCs are used for 10 H= and 5 CCs are used for 20 H= under 2!2% and 3

PCCH sy,+ols.

Paging ser7i"es ha7e higher priorities than other data ser7i"es. Paging ser7i"es with a highpriority o""upy ,ore PCCH s"heduling allo"ation signaling and uplin s"hedulingauthori=ation signaling. !herefore# PCCH resour"es "onsu,ed +y paging ser7i"es ,ust +e,aintained at an appropriate range.

he P)CC* %oad is defined as P)CC*%oadC

.

&ssu,e that the paging arri7al rate ,eets the Poisson distri+ution>

P&1page3

SA eP

=1

!he pre"eding analysis shows that the a7erage nu,+er of CCs o""upied +y ea"h paging,essage is . !he nu,+er of CCs o""upied per fra,e +y ea"h paging ,essage is "al"ulatedas follows>

P&1page3

frame1P&frame1CC enn

= 1

!he PCCH paging load is defined as the ratio of the nu,+er of CCs allo"ated for paging tothe total nu,+er of CCs per fra,e. !he following ta+le lists the nu,+er of CCs in"luded inea"h fra,e.

,igure 1.''u,+er of CCs in"luded in ea"h fra,e in the 2!2% syste,

/andwidth ' "H5 1- "H5 1' "H5 - "H5

nPCCHsy,+O1 30 50 120 10

nPCCHsy,+O2 120 260 30 600

nPCCHsy,+O3 200 10 B20 50

!he ,aAi,u, PCCH paging load ma5P)CC4 # defined +y "usto,ers does not eA"eed 1G.

P&page3 # "an +e "al"ulated +ased on ma5P)CC4 # . &""ordingly the PCCH paging load

per fra,e "an also +e "al"ulated.



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PCCH paging "apa"ity on the e'ode4 (the n/para,eter is set to 1.)

s;re"ordspagingQ1M01.0M501RlnM1M100

Qn

Mn1RlnMn100

fra,e#

,aA#totalfra,e#CC#

fra,e#PCCHload

==

=

n

4C

P&

P)CC

P&

3. Paging "apa"ity and e'ode4 paging load

e'ode4s in Huawei e%&'3.0 supports a ,aAi,u, of 600 paging ti,es. It is re"o,,endedthat the !&$ si=e +e planned using 0G of the full paging load. !herefore# 360 paging,essages are pro"essed per se"ond.

. Paging "apa"ity and paging +lo"ing

!he nu,+er of paging re"ords "on"urrently trans,itted at the sa,e P: is related to the 7alueof the ma34oO(PagingRecordspara,eter. In low paging +lo"ing rate# the paging arri7alrate ,eets the Poisson distri+ution. !he paging "apa"ity depending on the paging +lo"ingrate is "al"ulated using the following for,ula>

P&1b%ocking

ma5R

R

R

P&1b%ocking

ma5

C

ma5

ma51b%ockingC

6R

C(RR,*eR

P

P&1b%ocking =

= 01

K P&b%ockingC # > Paging "apa"ity affe"ted +y paging +lo"ing (nu,+er of paging

re"ords at ea"h P:)

K ma5b%ockingP # > !he paging +lo"ing rate defined +y the operator does not eA"eed

2G.

K ma5R > pe"ified +y the ma34oO(PagingRecords para,eter.

&""ording to the pre"eding for,ula# if the +andwidth is 20 H= (the 7alue of the

maxNoOfPagingRecordspara,eter e


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is 2000. !he a7erage traffi" ,odel 7alue is "al"ulated using the following for,ula>

000B02.03B00;1.2 = (su+Ms)!he nu,+er of e'ode4s in a !&$ is "al"ulated as

follows>

292.020.000B02M2000

0360.000B02'MCn e'4!&liste'4# ===

In su+ur+an areas# the traffi" load is less than that in ur+an areas. !herefore# the nu,+er ofusers esti,ated at ea"h site is less than that in ur+an areas. If the penetration rate is 20G# thea7erage nu,+er of users at ea"h site is 1000. !he nu,+er of e'ode4s in a !&$ is "al"ulatedas follows>

65.00.000B02M1000

036

0.000B02'M

Cn e'4!&liste'4# ===

!he pre"eding analysis and 7alues are for your referen"e only.

In su,,ary# the following fa"tors affe"t the nu,+er of e'ode4s in"luded in a !&$>

Paging "apa"ity

!raffi" ,odel

'u,+er of users



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' P$anning Too$ Con(iguration'.1 TA P$anning Too$

!he -'et is radio networ planning software de7eloped +y Huawei. It "an +e used for !&$auto,ati" planning. !his se"tion des"ri+es how to use this tool to i,ple,ent !&C planning.

"urrently# the -'et "an perfor, $! !&C planning only in / ,ode.

In the 74etwindow# "hoose Operation 9 !T0 TA! P$anningunder Pro:ect 03p$ore.

,igure 1.1 $! !&C planning window

I,port engineering para,eters su"h as the site and "ell and "hoose Automatic A$$ocation.



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,igure 1. I,porting engineering para,eters

'. TA and TA! Con(iguration

'..1 TAC Con(iguration on the e4ode/

1. &dd !& infor,ation.

& C':P%&!:%!&> !ra"ing&reaIdO0# Cn:peratorIdO0# !a"O1

,igure 1.) !& para,eters

Parameter 2D Parameter

4ame

Description Va$ue Range

!ra"ing&reaId !ra"ing areaI

Indi"ates the tra"ing area identity#whi"h uni


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,igure 1.1 &dding !& "onfigurations on the e'ode4

2. odify !& infor,ation.

: C':P%&!:%!&> !ra"ing&reaIdO0# Cn:peratorIdO0# !a"O1

,igure .1 odifying !& "onfigurations on the e'ode4

If !& "onfigurations are ,odified on the radio networ# "ells ,ust +e reset and a""ordingly ser7i"es areinterrupted. &fter the pre"eding "o,,and is eAe"uted# the following dialog +oA is displayed pro,pting

you to reset the e'ode4.

3. elete the !& "onfiguration.

% C':P%&!:%!&> !ra"ing&reaIdO0



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,igure #.1 eleting !& "onfigurations on the e'ode4

. iew !& "onfigurations.

$! C':P%&!:%!&> !ra"ing&reaIdO0

,igure &.1 iewing !& "onfigurations on the e'ode4

6. Configure para,eters asso"iating a !& with a "ell.

& C$$:P> $o"alCellIdO0# !ra"ing&reaIdO1# Cell%eser7ed/or:pOC$$?':!?%%?/:%?:P# :pl%+sed%atioO26# :pl%+sed%atioO26

,igure 1.% Para,eters asso"iating a !& with a "ell on the e'ode4

Parameter

2D

Parameter 4ame Description Va$ue Range

$o"alCellId $o"al "ell I Indi"ates the tra"ing area identity# whi"huni


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Parameter

2D

Parameter 4ame Description Va$ue Range

Cell%eser7ed/or:p

Cell reser7ed foroperator

Indi"ates whether the "ell is reser7ed foroperator use.

C$$?%%?/:%?:P(%eser7ed) andC$$?':!?%%?/:%?:P('ot %eser7ed)

:pl%+sed%atio

:perator uplin %4used ratio

Indi"ates the per"entage of %4s o""upied +y theoperator on the PCH when %&' sharing isena+led at the e'ode4 and the "ell-le7el swit"hof %&' sharing is turned on. 8hen the data7olu,e is suffi"ient# the per"entage of %4so""upied +y ea"h operator will rea"h the preset7alue. odifi"ations on this para,eter affe"t

operatorsF per"entages of %4s.

0 to 100

:pl%+sed%atio

:perator downlin%4 used ratio

Indi"ates the per"entage of %4s o""upied +y theoperator on the PCH when %&' sharing isena+led at the e'ode4 and the "ell-le7el swit"hof %&' sharing is turned on. 8hen the data7olu,e is suffi"ient# the per"entage of %4so""upied +y ea"h operator will rea"h the preset7alue. odifi"ations on this para,eter affe"toperatorsF per"entages of %4s.

0 to 100

,igure '.1 Configuring para,eters asso"iating a !& and a "ell on the e'ode4

'.. TA! Con(iguration on the ""0

Currently# the supports only stati" !&$s# whi"h "an +e "onfigured on the usingthe ADD TA!*T"o,,and.



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) *ummary*uggestions (or TA and TA! P$anning

uggestions for !& and !&$ planning in different s"enarios

*cenario !& i=e

!he PC spe"ifies that asingle !& "an in"lude a,aAi,u, of 100 e'ode4s.

!&$ i=e (nu,+er of !&s or e'ode4s)

Currently# the allows that a stati"!&$ in"ludes a ,aAi,u, of 1B !&s.

rban area 30 to 60 160 to 300 e'ode4s;3 to 10 !&s

*uburban area 60 to 0 200 to 650 e'ode4s;3 to 12 !&s

1. 4ased on se"tion .2.1DPaging Capa"ity &nalysis on the #D one !&$ supports 92 e'ode4s.!his is +ased on the ,aAi,u, nu,+er of users supported +y Huawei produ"ts. 8hen the a"tualnu,+er of e'ode4s is "lose to the ,aAi,u, nu,+er of users# adust the !&s in"luding 30 to 60e'ode4s and allo"ate 2 to !&s to one !&$.

2. /or densely-populated ur+an areas# it is re"o,,ended that one !&$ in"lude 292 e'ode4s# ea"h ofwhi"h has 2000 users.

3. /or su+ur+an areas# it is re"o,,ended that one !&$ in"lude 65 e'ode4s# ea"h of whi"h has1000 users.



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% P, and PO Ca$cu$ationIn a paging % "y"le# if the P/ and P: are nown# the "an ,onitor the PCCH. 4asedon the P-%'!I# related fre

!he nu,+er of the P/ (/') is deter,ined using the following for,ula>

/' ,od !O (! di7 ')M(?I ,od ')

!he nu,+er of the su+fra,e (i?s) "orresponding to the P: is deter,ined using the followingfor,ula>

i?s O (?I;') ,od 's

8here#

! indi"ates the length of a paging % "y"le# whi"h "an +e 32# B# 125# and 26B fra,es. ! isspe"ified +y the de(autpagingcyc$epara,eter.

!he n/para,eter indi"ates the nu,+er of P:s within a paging % "y"le. It "an +e set to&T; T; T; 18T; 18&T; 18


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,igure 1.1 ! su+fra,e ,apping

4s PO when is=- PO when is=1 PO when is= PO when is=#

1 0 ';& ';& ';&

2 0 6 ';& ';&

0 1 6 B

eran3.0 lte tdd ta planning and configuration guide v1.0

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