1wcdma Ran14 Radio Net Fea Alg Tr1 Idle Mode

WCDMA RANİ4 Radio NetworkFeatures and AlgorithmsTraining 1

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI

rr

rt

rt

rt

rt

-rt

rt

rt

rt

rt

Lrt

flE

]E

D

HUAWEI

Contents

1 WCDMA RANİ4 UE Behaviors in Idle Mode

2 WCDMA RANİ4 Power Control Algorithm

and Parameters

3 WCDMA RANİ4 Handover Algorithm and

Parameters

HUAWEI Confidential

4

‘1WCDMABAN14 UE

Behaviors in Idle Mode

WCDMA UE Behaviars in Idte MDde

WCDMA UE BehaviorsinidleMode

1

Copyright © 2012 Huawel TechnaIoies Co., Lid. AU rights resrved. HUAWEI

L

Confkiential İnforrnation of Huawei. Na Spreading Without Permission

wvw.huawei.com

WCDMA UE Behaviors in Idle Mode

rL

Foreword

UE behaviors in idle mode include:

PLMN selection

System information reception

CeU selection and reselection

Location registration

Paging procedure

Access procedure

• PLMN selection

Used to ensure that the PLMN selected by the UE provides services properiy.

• System information reception

The network broadcasts the network information to the UE that camps on the celi,Upon reception of broadcast information, the UE obtains the network information andtakes actions accordingly.

• Ceil selection and reselection

Used to ensure that the UE finds a suitable celi to camp on.

• Location registration

This procedure is used by the UE to report its status to the network. This procedure isof two types: periodical location registration and the location registration necessitatedby changes in the location area.

• Paging procedure

Used for the network to send paging messages to a UE which is in idle mode,CELL_PCH state, or URA_PCH state.

• Access procedure

From the view of access stratum, access is the procedure the UE shift from dIe modeto connected mode.

Confidential Information of Huawei. No Spreading Without Permission

WCDMA UE Behaviors n Idle Mode

References

• 3GPP TS 22.0.11: Service Accessibility

• 3GPP TS 23.122: NAS Functions Related ta MobiZe Station (MS)

in Idle Mode

• 3GPP TS 24.008: Mobite Radio Interface Layer 3 Specification;

Gore Network Protocos - Stage 3 [• 3GPP TS 25.304: UE Procedures in Idle Mode and Pracedures

for CeB Reselection in Cohnected Mode r• 3GPP TS 25.331: Radio Resource Control (RRC)

• 3GPP TS 31.102: Characteristics of The USIM Application

EIZEL:

r

E[Eı:1iE

Confidential nformation of Huawei. No Spreading Without Permission


T’ Objectives

• Upon completion of this course, you wili be able to:

Describe the workng principles of the UE Behaviors in Idle

Mode feature

Perform parameters modification of the UE Behaviors in Idle

Mode feature


WCDMA UE Behaviors in IdI Mode

Contents

1. PLMN Selection

2. System Information Reception OorJc t

3. CelI Selection and Reselection

4. Location Registration CLJO(L

5. Paging ProcedureCÖMfl

6. AccessProcedure0ıda)

Confidential Informaton of Huawei. No Spreading Without Permission

t

L

L

WCDMA UE Behaviors in İdle Mode

‘ Contents

1. PLMN Selection

2. System Information Reception

3. CelI Seection and Reselection

4. Location Registration

5. Paging Procedure

6. Access Procedure

Confidential Information of Huawei. No Spreaciing Without Permission

WCDMA UE Behaviors in dIe Mode

Ceil Search

• UE does not have UTRAN carrier information:

in order to flnd a sultable ceM to stay, UE witi scan ait the

frequencies in UTRAN. in each carrier, UE just neecl to find a

celiwith bestsignal C> eJ\ ? ‘.ı i-

• UE has UTRAN carrier information:

UE wiIl try whether the original celi is suitable to stay. If not, UE

stili need to scan ali the frequencies in UTRAN ta fınd a

suitabiecell in PLMN Crn- tI)

• Typical scenario of first occasion is the first time a new UE is put into use.

• The second occasion is very common.

[

Confidential Information of Huawei. Na Spreading Without Permission

[t.


Ceil Search (Cont1)[c>4

ii

L’ı

t..,

•1 2

• Step 1: Slot synchronization

During the first step of the celi search procedure, the UE uses the primarysynchronisation code (PSC) to acquire slot synchronisation to a ceil.

• Step 2: Frame synchronization and code-group identification

During the second step of the celi search procedure, the UE uses the secondary

synchronisation code (SSC) to find frame synchronisation and identify the code group

of the ceil found in the first step.

• Step 3: Primary scrambling code identification

During the last step of the ceil search procedure, the UE determines the exact primary

scrambling code used by the found celi. The primary scrambling code is typically

identified through symbol-by-symbol correlation over the CPICH with ali codes within

the cocfe group identifled in the second step.

• If the UE has received information about which scrambling codes to search for, steps

2 and 3 above can be simpiifled.

2_ck

Contidential Information of Huawei. No Spreading Without Permission

• Equivalent PLMNs : The Mobile Equipment stores a list of “equivalent PLMNs”. This

list is replaced et the end of each location update procedure or routing area update

procedure. The stored list consists of a list of equivalent PLMNs as downloaded bythe network plus the PLMN code of the registered PLMN that downloaded the list.

.{ıe£ PL0t5rr

00t-V.:.

WCDMA UE Behavicrs in dIe Mode

PLMN Selection

r’TrAvaiJabk\ / T the Uscr

PL!çordıng, Se1ec:eciPLMN /

\tO PnorıyOrder/ 1 --

t FailFail ,uccess -

.

(N (nd Endj End

•.

Cop g C 2 awe owesjpLtd1sreser7ed ı aQe8 HY?EI

cz(TD(TEErE

LTİZ

LÜc(TEtin

Confidential Inforrnation of Huawei. No Spreading Without Permission


• The UE can get system information from PCCPCH, and the PLMN information is

transmitted in MIG of PCCPCH.

e After getting the MIB, the UE can judge whether the current PLMN is right one. If so,

the UE wili get SIB scheduling information from the MIB; if not, the UE wili search

another carrier, do this procedure again.

• The priority order of automatic PLMN selection mode:

2 PLMNs contained in the User Controlled PLMN The PLMNs are arrangedSelector with Access Technology’ data filed in the in priority ard erSIM excluding the previously selected PLMN

3 PLMNs contained in the “Operator Controlled The PLMNs are arranged

PLMN Selecior with Access Technology’ data flled in priority orderin the SIM excluding the previously selected PLMN

4 Other PLMN/Access technology combinations with The PLMNs are arranged

the high quality of received signals axcluciing the in priority orderpreviously selected PLMN

5 Other PLMNJAccess technology combinations The PLMNs are arranged

excluding the previously selected PLMN in the descending order ofsignal quality

e Previously selected PLMN The PLMN selected by theUE before automaticPLMN selection

PLMN Selection (ConL)• When the UE is switched on, or the coverage is restored,

then the UE selects the registered PLMN or its equivalent

PLMNs

• If no registered PLMN or equivalent PLMNs is available, or

if registration fails, the UE performs one of the following two

procedures, depending on its operating mode:

Automatic PLMN selection: the UE automatically selects a

PLMN according to the priority order

Manual PLMN selection: the UE shows alI available PLMNs to

the subscriber. The subscriber then selects a PLMN

1 HPLMNs Home PLMNs


(TWCDMA UE Behaviors in Idle Mode

PLMN Selection (Cont.)• Automatic PLMN selection: UE can seect a PLMN from the

Home PLMNs (HPLMNs) and roam in the Visfted PLMN

(VPLMN)

Selecting from the HPLMNs: UE maintains a list of allowed and

available PLMNs in priority order. VVhen selecting a PLMN, the UE

searches for the PLMNS from the highest priority to the iowest

Roaming in the VPLMN: UE periodicaliy searches for the HPLMN

and higher priority PLMNS for better seivices

• Manual PLMN selection: UE maintains a list of allowed and

available PLMNs in priority order. When seecting a PLMN, the [UE indicates the list to the subscriber who wili select a PLMN,

and then camps on the selected PLMN Cj; -

4tngh A’AÇEİ

• The MCC and MNCJ which are in the PLMN identity of the HPLMN, match the MCCand MNC in the IMSI of the UE.

• Except the HPLMNs, the PLMNs that the UE camps on are defined as VPLMNs.

• For the PLMN selection in the VPLMN, a value of T minutes may be stored in the 51M.

Either T is in the range 6 minutes to 8 hours with a step of 6 minutes or T indicates

that no periodic attempts shail be made. lfno value is stored in the SIM, a default

value of 60 minutes is used.

• When the UE attempts to access the HPLMN or the PLMN with higher priority, the UE

must adhere to the following rules:

D After the UE is switched on, a period of at least two rninutes and at most T

minutes shall elapse before the first attempt is made.

D Periodic attempts shall be performed oniy by the UE in idle mode.

D Oniy the priority leveis of equivalent PLMNs of the same country (which serveas the current serving VPLMN) can be compared with the priority level of aselected PLMN.

L[(T


WCDMA UE Behaviors in !de Mode

Contents

1. PLMN Selection


3. CelI Seection and Reselection


5. Paging Procedure

6. Access Procedure


• System information is used for the network to broadcast network information to UEs

camping on a ceil so as to control the behavior of UEs.

• MIB

When selecting a new ceI, the UE reads the MIB. The UE may locate the MIB

by predefined scheduling information. The lEs in the MIB includes MIB vaue

tag, PLMN type, PLMN identity, reference and scheduling information for a

number of SİBs in a celi or one or two SBs in a ceil.

• SB

Scheduling Block (SB) gives reference and scheduling information to other

S 1 Bs.

• SIB

System ınformation Block (SIB) contains actual system information. it consists

of system information elements (tEs) with the same purpose.

• Scheduling information for an SIB may oniy be included in either the MIB or one of the

SB.

• UE may use the scheduling information in the MIB and SB to locate each SIB to be

acquired. If UE received an SIB in a position according to the scheduling information

and considers the contents as valid, UE wiU read and store the SIB.


Structure of System Information

System information is organized as a tree, inciuding:

o SB (Scheduling Block)

MIB (Master Information Block) - S’

SIB (System information Biock)

1•.. 1

__________

ck2 L

___________

bk2

1[izDt:[t:izt:[t:LEIZt:[1’

İ’Z

EL

Confıdential Information of Huawei. No Spreading Without Permission


System Information

SIBİ: contains the system information for NAS and the ç’-’

timer/counter for UE n c.I?Z C% Q.

• SIB2: contains the URA information

• SIB3: contains the parameters for ceU seiection and celi re

selection

• SIB5: contains parameters for the common physical channels of

the celi

• SIB7: contains the uplink interference level and the refreshing

timer for SIB7

• Sf81 1: contains measurement controlling information

• SIB4: contains parameters for celi selection and celi re-selection while UE is in

connected mode.

• SIB6: contains parameters for the common physical channels of the ceil while UE is

in connected mode.

• SIB8: contains the CPCH static information.

• 81B9: contains the CPCH dynamic information.

• SIBIO: contairıs information to be used by UEs having their DCH controlled by a

DRAC procedure. Used in FDD mode oniy. To be used in CELL_DCH state oniy.

Changes so often, its decoding is controlled by a timer.

• SIBI2: contairıs measuremerıt controlling information in connecting mode.

• SfBI3: contains ANS!-41 system information.

• SIBI4: contains the information in TDD mode.

• SIBI5: contains the position service information.

• SIBİ6: contains the needed pre-configuration information for handover from other

RATto UTRAN.

• SIBI7: contains the configurationinformation for TDD.

• Sf018: contains the PLMN identities of the neighboring celts.

Tc be used in shared networks to hefp with the cef 1 reselection process.

• SIBI 9: contains Inter-RAT frequency and priority information to be used in the ceil.

Confidential Information of Huawei. Ne Spreading Without Permission

LWCDMA UE Behaviors in Idle Mode

Reception of System Information(ıle L clIer) [The UE shaU read system information broadcast on a BCH

transport channel when the UE is in idle mode or in

connected mode, that is, in CELLFACH, CELL_PCH, or

URA_PCHstate

o1s ::•.‘

P.ACI4 >ç_tci-i

r

[The typical scenarios when the UE read system include the followings:

Before ceil selection

After ceil reseection

Before Iocation/route update

When the UE enter dIe mode from connected mode

EEE

E

1.Confidential Information of Huawei. No Spreading Without Permission


Contents

1. PLMN Selection


3. Celİ Selectiorı and Reselection


5. Paging Procedure

6. Access Procedure


tWCDMA UE Behaviors in dIe Mode

Ceil Selection

When the PLMN is selected and the UE is in idle mode, the

UE starts to select a ceil to camp on and to obtain services

There are four states involved in celi selection:

Camped normaliy

Any ceil selection

Campedonanycell [Connected mode p

(S

‘,.r’’ :4

£2 %WUA%EI I

• Camped normaliy: The celi that UE camps on is caBed the suitable ceil. in this state,the UE obtains normal services.

• Any ceil selection: in this state, the UE shall attempt to find an acceptable celi of anyPLMN to camp on, trying ali RATs that are supported by the UE and searching first for

a high quality celi.

• Camped on any celi: The celi that UE camps on is called the acceptable ceil. in this

state the UE obtains limited services. For example, UE may originate emergency cali.

The UE shall regulariy attemptto find a suitable ceil of the selected PLMN, trying ali

RATs that are supported by the UE.

• Connected mode: After RRC connection setup, the UE changes from the idle mode to

the connected mode (CELL_DCH, CELL_FACH, CELL_PCH, or URA_PCH state).

• Celi selection of the UE leaving the connected mode:

When returning to the dIe mode from the connected mode, the UE shall select

a sultable celi to camp on. Candidate celis for this selection are the celis usedimmediateiy before the UE leaves the connected mode.

When returning to the idle mode after an emergency cali on any PLMN, theUE shali seiect an acceptable ceil to camp on, Candidate celis for thisselection are the celis used imnıediately before the UE leaves the connected

mode.

if no acceptable ceil is found, the UE shall continue to search for anacceptable celi on any PLMN in the state “Any celi selection”.

LLA

Confidential Informatiorı of Huawei. No Spreadng Without Permission


Conficiential Information of İ-luawei. No Spreading Witlıout Permisşion

WCDMA UE Behaviors in dIe Mode (

Ceil Selection (Cont.)

Two types of ceil setection:

Initial ceil selection

• If no celi information is stored for the PLMN, the UE starts this

procedure

Stored information of ceil selection

• If ceil information is stored for the PLMN, the UE starts this

procedure

<T

• Initial celi selection: If no celi information is stored for the PLMN, the UE starts the

initial celi selection. For this procedure, the UE need not know in advance which

Radio Frequency (RF) channels are UTRA bearers. The UE scans ali RF channels in

the UTRA band according to Its capabilities to find a suitable ceil of the selected

PLMN. On each carrier, the UE need oniy search for the strongest celi. Once aıl

suitable ceil is found, this celi shall be selected.

• Stored information of celi selection: For this procedure, the UE has to know the

central frequency information and other optional celI parameters that are obtained

from the measurement control information received before, such as scrambling codes.

Afterthis procedure is started, the UE selects a suitable ceil if any. Otherwise, the

“Initial celi selection” procedure is triggered.

t.LLt:E



Ceil Selection Criteria

Griterion 8 is used by the UE ta judge whether the ceil is

suitable to cam peci on

Criterion S: Srxlev> 0 and Squal > 0, where:

Squaı Qquaırneas Qquaı mm

Sı:3;iev = Qıievrneas — Qrxievmin —1ompensation

• If the pilot strength and quality of one celi meet S criteria, UE wili stay in this celi and

get other system information. Then, UE wiil initiate a location update registration

process.

• If the ceil doesn’t satisfy S criteria, UE wili get adjacent ceUs information from SI Bil.

Then, UE wili judge weather these celis satisfy S criteria. If the adjacent celi issuitable, UE wiil stay in the adjacent ceil.

• If no celi satisfies 8 criteria, UE wiI take the area as dead zone and continue the

PLMN selection and reselection procedure.

S,,,, Celi selection RX level value (dBm)

Qquaımeas Measured celi quality value. The quality of the received signal indicated in

average CPICH Ec/No (dB) for current celi

rxıevmeas Measured ceil RX level value. This RX level of the received slgnal indicated

CPICH RSCP (dBm) for current ceil

Qquaımın Minimum required quality Ieve in the celi (dB)

Minimum required RX level in the celI (dBm)

Pcompensation Max (UEJXPWR_MAX_RACH — PMAX, 0) (dB)

UE_7XPVVR_ MaxAiowedUİTxPower, Max allowed UE UL Tx Power (dBm)

MAX_RACH

P_MAX Maximum RF output power of the UE (dBm)

Squeı Celi selection quality value (dB)



Parameters of S Criterion

• Qquaim!n

Parameter rıame: Mm quality eveI

Recommended value: -18, nameiy -18dB

• Qrxlevmin

Parameter name: Mm Rx level

Recommended vaiue: -58, nameiy -1 l5dBm fc — Ç

___

L

Qqualmin

Content: The minimum required quality evel corresponding to CPICH Ec/No.

The UE can camp on the ceH oniy when the measured CPICH Ec/No is

greaterthan the value of this parameter.

Value range: -24-0

Physical value range: -24—0; step: 1

D Physical unit: dB

D Setthis parameterthroughADD UCELLSELRESEL, queryitthroughkŞi

UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

Qrelevmin

D Content: The minimum required RX eveI corresponding to CPICH RSCP. The [UE can camp on the celi oniy when the measured CPICH RSCP is greater

than the value of this parameter.

D Value range: -58--1 3

Physical value range: -115-’-25; step: 2 (-58: -115, -57: -113, ..., -13 :-25)

Physical unit: dBm

o Set this parameter through ADD UCELLSELRESEL, query it through L]:UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

[


tr


Parameters of S Criterion (Cont)

MaxAllowedUlTxPower

Parametername: Max allowed UE UL TX power

Recommencied value: 24, nameiy 24dBm

• MaxAI!owedUlTxPower

Content: The maximum allowed uplink transmit power of a UE in the celi,which is reated to the network planning.

o Valve range: 5O33

Physical value range: -5O33; step: 1

o Physica! unit: dBm

o Set this parameterthrough ADD UCELLSELRESEL, query it through LIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.


Celi Resetection

• The signal strength Of böth serving ceil and neighboring

celis varles with the moverrıent of a UE and so the UE

needs to select the most sutabIe ceil to camp on. This

process is called celi reselectiön

• Celi reselection process:

Measurernent start criteria

Celi reselection criteria

Conficiential Information of Huawei. No Spreading Without Permission


JP-ı —- ç;i

4İkJt

[Ft:EE

[£izt:

e;1E:[1*1

WCDMA UE Behaviors iri Idle Mode

Measurement Start Critc.ria

• lntra-frequency measurement:

Squaı Sintarch

qımeas Qquaımin

0qualmeas 0quaımin + Sintrasearctı

• If Squal> Sintrasearch, the UE need not start the intra-frequency measurement.

• If Squaİ Sintrasearch, the UE need to start the intra-frequency measurement.

• lfsystem messages do not corıtain Sintrasearch, the UE always need to start the

intra-frequency measurement.

• Parameters of the measurement start criteria:

Sguai Ceil quality value (dB)

quaımı’n Minimum reguired quallty eve? in the ceil (dB)

Sintmsea,.ch - Measurement threshold for UE to trigger intra-frequency cel? resetection

Measurement threslıold for UE to trigger inter-frequency cel? reseIecon

Ssea,chpTm Meesurernent threshold for UE to trigger inter-RAT cel? reselection

Confiderıtial Information of Huawei. No Spreading Without Permission


WCDMA UE Behavors in Idle Mode

Measurement Start Criteria (Cont.)

Inter-frequency measurement:

Squaı Sinıersearch

1

o -Q <8.qualmeas qualrnın ıntersearch

0quaımess 0quaımin +8intersarc1ı

1

• If Squal> Sintersearch, the UE need not start the inter-frequency measurement.

• If Squal Sintersearch, the UE need to start the inter-frequency measurement.

• If system messages do not contain Sintersearch, the UE always need to start the

inter-frequency measurement.

ct:(7’ED

t:GEizt[.[(7[.

E(7

t:

WCDMA UE Behaviors in 1db Mode

Measurement Strt Criteria (CcnL)

• Inter-RAT measurement:

Şquaı: SşearchPATrn

qquaıms — guaımin searhRATm

quaırneas Qquatmin ÷

• If Squal> SsearchRATrn, the UE need not start the inter-RAT measurement.

• If Squal SsearchRATm, the UE need ta start the inter-RAT measurement.

• Jf system messages do not contain SsearchRA Tm, the UE always need ta start the

inter-RAT measurement.

Confidential bnformation of Huawei. No Spreading Without Permission

(3


Parameters of Measurement Start Criteria

• klieSintrasearch

Parameter name: Intra-freq ceil reselection threshold for idle

mode

Recommended vaiue: 5, namety 10dB

• ConnS!ntrasearch

Parameter name: Intra-freq ceil reselection threshold for

connected mode

Recommended value: 5, nameiy 10dB

E!dleSintrasearch

Content: A threshod for intra-frequency celi reselection in idle mode. When

the quality (CPICH Ec/No measured by UE) of the serving ceil is lower than

this threshold plus the [Qgue!minJ of the ceil, the intra-frequency celireseiection procedure wilI be started. This parameter is not configured when

its value is 127. (JValue range: {{-16--10}, {127}}

Physicai value range: -32--20; step: 2

Physical unit: dB

Set this parameterthrough ADD UCELLSELRESEL, query it through tŞ]UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

• ConnSintrasearch

Content: A threshoid for intra-frequency celi resetection in connect mode.

When the quaiity (CPICH Ec/No measured by UE) of the serving ceil is tower

than this threshold plus the [Qqualmin] of the ceil, the irıtra-frequency celi

reselection procedure wiil be started. This parameter iş not configured when

its vaiue is 127.

Value range: {(-16-’10}, {127}}

Physical value range: -32--20; step: 2

Physicai unit: dB

Set this parameter through ADD UCELLSELRESEL, query it through LŞIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.


L


Parameters of Measurement Start Criteria(Cont.)

• İdleSintersearch

Parameter name: inter-freq celi reselection threshoid for idle

mode

D Recommended value: 4, nameiy 8dB

ConnSintersearch

D Parameter name: lnter-freq ceil reselection threshold for

D Content: A threshold for inter-frequency celi reselection in idle mode. When

the quaJity (CPICH EcINo measured by UE) of the serving ceil is lower than

this threshold plus the [Qqualmin] of the celi, the inter-frequency ceilreseection procedure wiil be started. This parameter is not configured whenitsvaue is 127.

D Value range: {{-16-1O}, {127}}

D Physical value range: -32-2O; step: 2

D Physical unit: dB

D Set this parameter through ADD UCELLSELRESEL, query it through i,ŞIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

ConnSıntersearchContent: A threshold for inter-frequency ceil reselection in connect mode.

When the quality (CPICH Ec/No measured by UE) of the serving celi is Iower

than this threshold plus the [Qquaİmin] of the celi, the inter-frequency celi

reselection procedure wiil be started. This parameter is not configured when

its value is 127.

D Value range: {{-16-’lO}, {127}}

D Physical value range: -32-2O; step: 2

D Physical unit: dB

D Set this parameter through ADD UCELLSELRESEL, query it through LIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

connected mode


• IdİeSinter.search


Parameters of Measurement Start Criteria(Cont.)• SsearchRat

Parameter name: inter-RAT ceil reselection threshold


o Content: A threshold for inter-RAT celi reselection. When the quality (CPICHEc!No measured by UE) of the serving celi is lower than this threshold plus the[Qqualmin] of the cel!, the inter-RAT celi reseection procedure wili be started.This parameter is not configured when its value is 127.

Value range: {{-1 6—la), {127}}

Physical value range: -32--20; step: 2

Physical unit: dB

Set this parameter through ADD UCELLSELRESEL, query it through kJ:UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.


SearchRat

crÇ

F

EE’t4

(T(Tc

(J

izEt:E



Measurement Start Criteria Description

Intrafrequency

measuremn

Interfteçuency

rneurernen

Inter-RATmeasuremen

Measurementnot started

• The intra-frequency, inter-frequency, and inter-RAT measurement criteria are as

shown in the above figure.

• The intra-frequency celi reselection has e priority higher than the inter-frequency ceil

reselection and inter-RAT celi reselection, the intra-frequency ceI reselection start

threshold should be higher than the inter-frequency celi reselection start threshold

and inter-RAT celi rese!ection start threshod.

• If the celi reselection threshold is setto a comparativeiy high value, the UE may

frequently start celi reselections, and the battery of the UE may be largeiy consumed.

If the celi reselection threshold is set to a comparativeiy Iow value, it is difficult for ceU

reselections to be started, and the UE may not timeiy reside in the celis with gooci

quality, affecting the quality of communication between the UTRAN and the UE. For

detailed information, referto 3GPP TS 25.304.

Measuring intra-frecıuencyneghboring cells

Measwing inter-frequencyneihoring ceHs

Measuriftgınter-RAT

neighboıing cefis

• -

Threstıoklof Sm+çu*in

1 —CPICHEcINOSmter,ıdı + +

0


WCDMA UE Behaviors in Idle Mode(‘t,

t:

ü1’

t:(Z[

EIL:

<1ti

<TConfidential Information of Huawei. No Spreading Without Permission

1’

WCDMA UE Behaviors h Idle Mode

Ceil ReSE lection Criteria

• Criterion R is used for intra-frequency, inter-frequency and

inter-RAT ceji reselection

The ceti-ranking criterion R is defined by:

R = +

R = Qrneaş,n — Qoet,,

• in Rs, s means serving celi. in Rn, n nıeans neighbor celi.

• The offset Qoffsetls,n is used for Qoffsets,n to calculate Rn. The hysteresis Qhystlsis used for Qhysts to calculate Rs.

• The UE shall rank the celis according to the R criterion, derive Qmeas,n and Qmeas,sand calculate the R values, as descrbed in the following cases:

If a TDD or GSM celi is ranked as the best celi, the UE shall reselect that TDDor GSM celi.

If an FDD ceil is ranked as the best celi and the quaiity measure for ceilselection and reselection is set to CPICH RSCP (QuafMeas = CPİCH_RSCP),the UE shall reselect that FDD celi.

If an FDD celi is ranked as the best celI and the quality measure for celselection and reselection is set to CPICH Ec/NO (QuaİMeas = CPİCH_ECNO),the UE shall perform a second ranking of the FDD celis according to the Rcriteria specifled above. in this case, however, the UE uses the measurementquantity CPICH Ec/NO for deriving the Qmeas,n and Qmeas,s and thencalculating the R values of the FDD celis. The offset Qoffset2s3nis used forQoftsets,n to caiculate Rn, the hysteresis Qhyst2s is used for Qhysts tocalculate Rs.


• in ali the previous cases, the UE can reselect a new celi oniy when the followingconditions are met:

The new ceil is better ranked than the serving celi during a time intervalTreselections.More than one second has elapsed since the UE cam ped on the currentserving ceH.

4a v1 -e ıv1i

({ı ;iJ


Hysteresis and Time Interval

Quallty cııeas,n

FOjııeas,s

Time

Ç

r

t;t’:

ç

iz(2L({

L

f


WCDMA UE Behaviors in ldfe Mode

D Content: Measurement quantity of ceil selection and reselection. it can be set

to CPICH Ec/NO or CPICH RSCP.

D Value range: CPICH_ECNO(CPICH Ec/NO), CPICH_RSCP(CPICH RSCP)

D Physical value range: CPICH_ECNO, CPICH_RSCP

Physical unit: None

Set this parameter through ADD UCELLSELRESEL, query it through kIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

Treselections

D Content: If the signal quality of a neighboring ceil is betterthan that of theserving ceil during the specified time of this parameter, the UE reselects the

neighboring celi. it is used ta avoid ping-pong reselection between different

celis.

o Value range: O—31

D Physical value range: O—31; step: 1

D Physical unit: s

D Set this parameter through ADD UCELLSELRESEL, query it through LİUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

Parameters of R Criteria

• QualMeas

Parameter name: Celi Se[-reselecton quality measure

D Recommended value: CPICH_ECNO

• Trese!ections

Parameter name: Reselection delay time.

D Recommended value: 1, nameiy 1 s

)jI, 3i

QualMeas


rWCDMA UE Behaviors in dIe Mode

Parameters of R Criteria (ConL)

• (dleQhystls

Parameter name: Hysteresis 1 for dIe mode (Recommended value: 2, nameiy 4dB

• ConnQhystls (Q S’

o Parameter name: Hysteresis 1 for connected mode


İTe

IdleQhystls

Content: The hysteresis value of the serving FDD celis in dIe mode in casethe quality measurement for celi selection and reselection is set ta CPICHRSCP. it is related to the slow fading feature of the area where the celi is

located. The greater the slow fading variance is, the greater this parameter.

Value range: 0-20

Physical value range: 0-40; step: 2

Physical unit: dB

Set this parameterthrough ADD UCELLSELRESEL, query it through LIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

• ConnQhystls

D Content: The hysteresis value of the serving FDD celis in connected mode in

case the quaiity measurement for ceil selection and reselection iş set toCPICH RSCP. it iş related to the slow fading feature of the area where the celi

is located. The greater the slow fading variance is, the greaterthis parameter.

Valuerange:0—20 rPhysicai vaiue range: 0—40; step: 2

Physical unit: dB

Set this parameterthrough ADD UCELLSELRESEL, query it through L,ŞIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

LE

Confidential lnformation of Huawei. Na Spreading Without Permission


Parameters of R Criteria (Cont.)

ldleQhyst2s

D Parameter name: Hysteresis 2 for idle mode


• ConnQhyst2s

D Parameter name: Hysteresis 2 for connected moda

D Recommencied value: 1, nameiy 2dB

D Content: The hysteresis value of the serving FDD cells in idle mode in case

the quality measurement for ceil selection and reselection is set to CPICH

Ec/No. it is related to the slow fading feature of the area where the celi is

located. The greater the slow fading variance is, the greater this parameter.

Value range: {{0—20}, {255}}

D Physical value range: 0-40; step: 2

D Physical unit: dB

Set this parameterthrough ADD UCELLSELRESEL, query it through ,ŞI

UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

ConnQhyst2sCorıtent: The hysteresis value of the serving FDD celis in connected mode in

case the quality measurement for celi seiection and reselection is set to

CPICH Ec/No. it is related to the slow fading feature of the area where the celi

is located. The greater the slow fading variance is, the greaterthis parameter.

D Value range: {{0-2O}, {255}}

D Physical vaiue range: 0’-40; step: 2

Physical unit: dB

D Set this parameterthrough ADD UCELLSELRESEL, query it through LSIUCELLSELRESEL, and modify it through MOD UCELLSELRESEL.

• !dleQhyst2s


L

WCDMA UE Behaviors in idle Mode


• fdleQoffsetlsn

Parameter name: İclleQoffsetlsn


• ConnQoffsetlsn

Parameter name: ConnQoffsetlsn

Recommended vaue: 0, nameiy 0dB(1

_

t:

!dleQoffsetlsn

Content: Offset of celi CPfCH RSCP measurement value in ceI selection or

reseection when the UE is in idle mode.

Value range: -50--50

Physical value range: -50--+50; step: 1

Physical unit: dB

Set this parameter through ADD UINTRAFREQNCELL / ADD

UINTERFREQNCELL, query it through LST UINTRAFREQNCELL / LST

UINTERFREQNCELL, and modify it through MOD UINTRAFREONCELL /

MOD UINTERFREQNCELL.

• ConnQoffsetlsn

Content: Offset of ceil CPICH RSCP measurement value in ce selection or

reselection when the tiE is in connected mode.


Physical value range: -50-’+50; step: 1

Physical unit: dB

Set this parameter through ADD UINTRAFREQNCELL / ADD

UINTERFREONCELL, query it through LST LJINTRAFREQNCELL / LST

UINTERFREQNCELL, and modify it through MOD UINTRAFREQNCELL/


Confidential information of Huawei. No Spreading Without Permission

WCDMA UE Behaviors in [dIe Mode


• (dleQoffset2sn

Parameter name: IdleQoffset2sn


• ConnQoffset2sn

o Parameter name: ConnQoffset2sn


Content: Offset of ceil CPICH EcİNo measurement value in ceil selection or

reselection when the UE is in [dIe mode.

Value range: -50-50

Physical va[ue range: -50-50; step: 1

Physical uııit: dB

Set this parameter through ADD U INTRAFREQNCELL / ADD

UINTERFREQNCELL, query it through LST UINTRAFREQNCELL / LST

UINTERFREQNCELL, and modify it through MOD UINTRAFREQNCELL!


ConnQoftset2sn

Content: Offset of ceil CPICH Ec/No measurement value in celi selection or

reselection when the UE is in connected mode.


Physical value range: -50-’50; step: 1

o Physical unit: dB

o Set this parameterthrough ADD UINTRAFREQNCELL / ADD

UINTERFREONCELL, query it through LST UINTRAFREQNCELL / LST

UINTERFREQNCELL, and modify it through MOD UINTRAFREQNCELL /

MOD UINTERFREpNCELL.

• IdleQoffset2sn


WCDMA UE Behaviors n Idle Mode

Contents

1. PLMN Selection

2. Systern 1 nformafio n Reception

3. Celİ Setection and Reselection

4. Location Registration CUf’

C

5. Pagrng Procedure

6. AccessProcedure

r

[

t

Confidential nformation of Huawei. No Spreading Without Permission


Location Registration

• The location registration inciudes:

Location update (for non-GPRS)

Route update (for GPRS)

• The types of focation registration:

o Normal location registration

Periodic ocation registration

IMSI attach/detach

• Location registration is used for the PLMN to trace the current status of the UE.Location registration ensures that the UE is connected to the network when the UEdoes not perform any operation fora leng period.

• The UE performs normal location registration in the following conditions:

Afterbeing switched on, the UE selects a suitable ceil that belongs to a newLA er RA. That is, the LA or RA is differentfrom that recorded in the USIMbefore the switch-off of the UE.

The UE in idle mode enters the celi of a new LA or RA.

• CS ciomain location registration signaling is shown as following:

UE RNCInitial Direct Transfer

(location update request)>

Downlinlc Direct Transfer(location update accept)

Initial Direct Transfer(IMSI detach indication)

CN

Initial UB Message(location update reguest)

Direct Transfer(location update accept)

Normal Location Updatingriodic Updating

/

Initial UE Message(IMSI detach indication)

Confidential Information of Huawei. No Spreading Without Permisson

• Periodic location registration may be used to periodicaliy notify the network of the

availability of the UE.

• The value of T3212 is sent by the network to the UE in SIBİ. The value of T3312 issent by the network to the UE in the NAS messages ATTACH ACCEPT and

ROUTING AREA UPDATE ACCEPT. The value of T3312 shall be unique within an

RA.

Confidential Information of Huawei. No Spreading Without Permissiont<T


Periodic Location Registration

• Periodic location registration is controlled by a Periodic

Location Update timer (T3212, for non-GPRS operation) or

a Periodic Routing Area Update timer (T3312, for GPRS

operation)

• T3212 is set through T3212 on the RNC side

• T3312 is set on the CN side

Ccpyrıgh2OchnoIocs ro L.d Pgao $ AWEI -

t(4

t,,(T.ç

c

1;

L

• T3312 signaling procedure is shown as following:

T3312 is sent to UE in the two following scenarios.

Initial Direct Transferarea update request:

CN

Initial UE Message

Downlink Direct Transfer(routing area update accept)

UE CNRNCInitial Direct Transfer

(attach reauest

RA UpdatingPeriodic Updating

periodic R4.. update timer

periodic F?A update timer

Downlink Direct Transfer(attach accept)

Initial UE Message(attach request)

Direct Transfer(attach accept) /


IMSI Attach/Detach

• The IMSI attachfdetach process facilitates the fast tocation

registr2tion of the UE in specific conditions

• IMSI attach/detach is set through ATT on the RNC side

• If the UE stili stays in the same LA afterbeing switched on again, the UE shafl

perform an LR request indicating IMSI attach. Otherwise, the UE shall perform an LR

request indicating normal location update.

• When the IMSI attach/detach operation applies, the UE shall send the IMSI detach

message to the network when the UE is switched 0ff or the SIM is removed while

being in the UPDATED state. This IMSI detach message wiil not be acknowledged by

the network.

• The system information contains an indicator indicating whether the IMSI

attach/detach operation is mandatory in the ceil. The UE shail operate in accordance

with the received value of the indicator.


rWCDMA UE Behaviors n Idle Mode

Parameters of Location Regıstration

T3212

Parameter rıame: Periodical ocation update timer [eminl

Recommencled value: 10, nameiy 60mm

.ATT

Parameter name: Attachldetach indication

Recommended vaiue: ALLOWED

t..

T3212

Content: This parameter indicates the time Iength of the periodical location

update. Periodical location update is implemented by MS through the locationupdate procedure. 0: The periodical update procedure is not used. Thisparameter is vaHd oniy when [CN domain ID] is set as CS_DOMAIN.

Value range: 0-255

Physical value range: O—1530; step: 6

D Physical unit: mm

Set this parameterthroughADD UCNDOMAIN, queryitthroughLŞiUCNDOMAIN, modify it through MOD UCNDOMAIN.

• ATT

D Content: Indicating whether attach/detach is allowed. NOT_ALLOWED

indicates that MS cannot apply the IMSI attach/detach procedure. ALLOWED

indicates that MS can apply the IMSI attach!detach procedure. This parameteris valid oniy when [CN domain ID] is set as CS_DOMAIN.

D Value range: NOT_ALLOWED, ALLOWED

Physical value range: NOT_ALLOWED, ALLOWED ‘4,

D Physical unit: None

o Set this parameterthroughADD UCNDOMAIN, query itthroughjŞIUCNDOMAIN, modify it through MOD UCNDOMAIN.


IJ


Contents

1. PLMN Selection


3. Ceil Seection and Reselection


5. Paging Procedure

6. Access Procedure


• ForCN originated paging: tdJ’c 1 C “

in order ta request UTRAN can neot ta UE, CN initiates the paging procedure,

transmits paging message ta the UTRAN through lu interface, and UTRANtransmits the paging message from CN ta UE through the paging procedure

on Uu interface, which wiil make the UE initiate a signaling connectian setupprocess with the CN.

• For UTRAN ariginated paging: ‘‘

UE state transition: in order ta trigger UE in the CELL PCH or URA_PCH

state ta carry out state transition (for example, transition to the CELL_FACH

state), the UTRAN wiil perform a paging process. Meanwhile, the UE wiilinitiate a ceil update or URA update pracess, as a repiy to the paging.

When the celi system message is updated: When system messages change,

the UTRAN wili trigger paging process in order to nform UE in the idle,CELL_PCH or URA_PCH state to carry out the system message update, sothat the UE can read the updated system message.

1

=ctM kr1ı’

ı’İ O- G ‘

ç O(yIİt

Confidential Information of Huawei. Na Spreading Without Permissıon


Paging Initiation

• CN initiatd paging:

• Establish a signaling connection

• UTRAN initiated paging:

• Trigger the celi üpdate procedure

• Trigger reading of updated system informatian

01J

et;

(21

E

c.q

<J6

1

WCDMA UE Behaviors in İdle Mode

Paging Type 1

• If UE is in the idle mode or CELLİURA_PCH state, the

paging message wili be transmitted on PCCH with

RNCİ 1 [nEBı tl FNi1

• Pagingtypel:

o The message is transmitted in one LA or RA for idle mode, or in one celi for

CELLPCH state, or in one URA for URA_PCH state.

After calculating the paging time, the paging message wiil be transmitted at

that time.

o If UE is in CELL_PCH or URA_PCH state, the UTRAN transmits the paging

information in PAGING TYPE 1 message to UE. After received paging

message, UE performs a ceil update or URA update procedure to transit state

to CELL_FACH.

• As shown in the above figure, the ON initiates paging in a location area (LA), which is

covered by two RNCs. After receiving a paging message, the RNC searches ali the

celis corresponding to the LAI, and then caiculates the paging time, at which it wili

send the PAGING TYPE 1 message to these celis through the PCCH.

pagingIJE

Confidential information of Huawei. No Spreading Without Permission


• Paging type 2:

If UE is in CELL_DCH or CELL FACH state, the paging message wiH betransmitted on DCCH with paging type 2.

The message wiil be oniy transmitted in a cel!.

• As shown in the above figure, if the UE is in the CELL_DCH or CELL_FACH state,the UTRAN wiH immediateiy transmit PAGING TYPE 2 message to the paged UE onDCCH channel.

<cod C• Pc) (C€1


L

ct:

(.1

r

eL

t:(-Lı ;cı5;

cLIl.c ıa)

ı. cı)

‘,0LIILIf

r


DRX Procedure

• To reduce power cönsumptiön, the UE çan read the

information from the PICH oniy at a particuar time. This is

known as the Discontinuous Reception (DRX) techno(ogy.

The interval between two consecutive periods of time is

called DRX cycle

• The value for the DRX paging cyçle Iength is determined as

follows:

DRX Cycle Length = MAX (2k, PBP) frames

• Paging Reception Process: When UE stays in dIe mode, CELL_PCH or URAPCH

state, the UE receives paging indicator from the PICH firstly, then reads the paging

information on the S-CCPCH.

• The DRX paging period formula:

DRX Cycİe Length = MAX(2’<, PBP) frames

K is the “CN domain specific DRX cycle Iength coefficient”, which is

broadcasted in SIBİ. The typical value is 6.

PBP is Paging Block Periodicity , which is 1 for FDD mode.

The paging period should be 640ms if K is 6.

Confidential Information of I-luawei. Na Spreading Without Permission

• Paging SFN formula:

Paging Occasion (CELL SFN) = {(IMSİ div K) mod (DR>< cycİe Iength div PBP»*PBİD ÷ *)< cycle Jangth + Frame Offset

n =0, 1, 2 and the requirement is the caIcuated CELL SFN must be below

its maximum value 4095.

Frame Offset is 0 for FDD mode.

K is the number of SCCPCH which carries PCH, and the typical value is 1.

The formva cloud be simpflfied as: SFN IMSI mod (DR.)< cycle /ength) + n *

(DRX cycİe İength).

• Paging Occasion(CELL SFN) Case:

One UE’s IMSI 460010912121001, DRX cycİe Iength = 64frames,thevalue

of the paging occasion for the UE is shown as the red point in the above figure,

in these paging occasion(CELL SFN), the UE wiil read paging indicator from

PICH

cj %4-<S


DRX Procedure. (Coht.)

• The value of the Paging Occasion is deterrnirıed as follows;

Paging Occasion (CELL SFN) =

{(1MSI div K) mod (DRX cycle Iength div PBP)} * PBP

+ * cyÖIeI,ngth+ Frame OffsetIL (t

e Pag!ng Occasion(CELL SFN) Case:

0 1 2 3 41 105 169 4073 40950 411 1 1 ....

“.. 1 1CLLL SF

DRX cych icngtlı

(1

[1

c

çi

c

ert’ıLLÜEe

Confidential Infarmation of Huawei. No Spreading Without Permission

[

DRX Procedure (ConL)

• İn FDD the UE shall monitor its paging indicator in the PICH frame

with SEN giyen by the Paging Occasion

• The Page Indicator in the frame to use is calculated by using the

following formula:

g t(P1 +[((ı8x(sFN+LsFNı8J+LsFNı64i+LsFNı5ı2Ji)modııt)x-j)modNP

Where, P1 = (IMSI div 8192) mod N

o N is the number of paging indicators in one PICH frame

• SFN is the paging occasion of the UE

• As shown in the followed figure, the UE needs to monitor the frames (paging

occasions) indicated by the red dots, and then decodes the qth P1 of this frame.

One DRX cycle

2’K- 1— 1 — 1 -


0 4095

0 1 q Np-1


WCDMA UE Behaviors in ldle Mode

ç-AC

c9r

ç

4

DRX Procedure (Cont.)

• Through DRX, UE oniy listens to PICH at certain predefined

time. And UE wili read the paging information on SCCPCH if

the paging indkator is 1

• Time offset between PICH and SCCPCH:

PICH frame ontaınıng pagng ındıcator —

Assodated S-CCPCH frame

TPIcH

• The timing relationship between PICH and SCCPCH is defined by the above figure,

and the interval is 3 slots duration (2ms, 7680 chips).

7L ‘(

Q( <

,•

İLL O’

ç ck

6L1

Ico1P

c

LI.4

c

reL

EConfidential İnformation of Huawei. No Spreading Without Permission

r


.:Pararneters of DRX

• DRXCycIeİehCoef

Parameter name: DRX cycle length coefficient

Recommended value: 6

• PICHMode

Parameter name: PICH möde

Recomrnend value; V36

• DRXCycIe!enCoef

Content: This parameter is broadcasted on SIBI. This parameter is used whena UE is in idle mode.

Vaiue range: 6—9

Physical value range: 6’-9

Physical unit: None

Set this parameterthroughADD UCNDOMAIN, query itthroughŞIUCNDOMAIN, and modify it through MOD UCNDOMAIN.

• PICHMode

D

D

D

D

0

Content: indicating the number of Pis contained in each frame on the PICH.

Value range: VİB, V36, W2, V144

Physical value range: 18, 36, 72, 144

Physical unit: None

Set this parameterthroughADD UP!CH, query itthrough LST UPICH.


Parameters of DRX (Cont.)

MaccPageRepeatTimes

Parameter name: Number of page re-TX


Content: This parameter defines the times of retransmission of pagingmessages. If the times of retransmission exceeds the value of this parameter,retransmission stops. For details, refer ta the 3GPP TS 25.331 protocol.

Value range: O-2

Physical value range: 0-2

Physical unit: None

o Set this parameter through SET UDPUCFGDATA, query it through LİUDPUCFGDATA.



• MaccPageRepeatTimes

0

rE[EG

t:FIZ[2

rL

[

EEL

WCDMA UE Behaviors iri dIe Mocie

Contents

1. PLMN Seleotion


3. Cetİ Selection and Reselection


5. Paging Procedure

6. Access Procedure

Confidential Irifornıation of Huawei. No Spreading Without Permission


Two Working Modes of UE

• Idlemode:

After turning on, UE wiil stay in ide mode [• Connected mode:

UE wiil switch to connected mode which cou!d be CELL_FACH

state or CELL_DCH state from the idle mode

After releasing RRC connection, UE wiil switch to the idle

mode from the connected mode

Et

• The most important difference between idle mode and connected mode is whether

UE has RRC connection with UTRAN or not.

• in idle mode, UE wili be identifled by MSI, TMSI or PTMSI and so on.

• in connected mode, tiE wiil be identified by URNTI (UTRAN Radio NetworkTemporary Identity), which is the ID of one RRC connection. [

CS3 Cct 4 -

fr 4..‘-

(ip —k’

_ ? (d<

—,f5

t:L

LConfidential information of Huawei. No Spreading Without Permission

1-

WCDMA UE Behaviors in (dIe Mode

Random Access Procedure

Definition:

Random access procedure is initiated by UE in order ta get

service from the system. Meanwhi(e, the access channe(s are

allocated to the UE by system

• This process may happen in the following typical scenarios:

Attach and detach

LAupdateandRAupdate

Signaling connection for services


..

.

n.v

0

<nı g (n

0 0 (D D) 3 D)

0 0 -h 1 D)

(D z 0 (1)

-o D) 0 (0 0 -a (tl

1 3 0) D)

0

0 İR 0< w t,, (t,

0 c m w D)

0 1 D) z 0 (D 0 0 (D

0 3 t,>

D)-

r>

co

’3

onı

0W

(DO

(D-U

cnD

)fl

0_(j)

(0-‘

Cfl(

DD

)(1

)D

)3

()(3

1—

-0

-

mo

D)

00

(t)

C1o

3-

(1)

rD-‘

(1)

D)(

D-

-+.

-0

0-

0jj5

0(D

-”

D)Z

rO

o-

D)

—Z

0(1

)(D

0

ç2-j3g

D)

0D

)-3

0-

acı>

E(D

a(D

fl•

.2:

(D ;.

D) D)

a-‘

(D(D (D

—.

:Tz

0•-

‘- 0 -s

a_(

—.

D) 0

(D(D (1

)

z 3 0 0 M 0

0 > 0 0 (D 0) t)) 0 :z (D

0 M t’> 44< 41<

((t

44:

—t

44:

(0 *4< 0 41<

44:

M 4*’

(‘t

44:

.1 44:

0 41<

41<

M 34< t’> 4*:

0)

3*’

41<

(0 “4:

0 3*:

4*:

M 4*:

(3 34,

t, <1(

0( (3 t,, 0 0,

‘D M

0 3 (ü

(1) a M

rr—

r>

c___,

‘


RACH Sub-Channets

• A RACH sub-channe defines a sub-set of the total set of uplink access slots. There

are a total of 12 RACH sub-channels.

• Set Preamble signatures and RACH sub-channel no. through ADD UPRACHBASIC,

query thern through [ST UPRACH.

• The access siots of different RACH sub-channels are iI(ustrated by

the following table:

Confıdential Information of Huawei. No Spreading Without Permission

İlQMcc-l’1_ -,--

c/ı ..çe(u.» H’C1

tErt:;

WCDMA UE Behaviors in Icfie Mode

• The mappng betvveen access slots and RACH sub-channels

Access slotg

*9 1*5 1*1

RAC1Isıb-dı am d

SF14 mod80

42 *3 *4 1*2 I3 *4 1*5 1*6 l*i I* 1*9 *10*11 *0 41 1*2

l0mt 10ni

SF14 mod8=l

1 i *10 .411 *12 *13

1

A55iots SF14 mod3’2 SF14 mod6=3

40 *1 *2 *3 *4 *5 *6 47 *8 49 *10 *11 *12 *13 *14

*3 *4 *5 *6 *7 *8 49 1 *10 *11 *0 *1 *2 *3 *4 *5

RACH ıonvsub-dannd lOma

-1 tl

AtSSE1OtS SF1{mod84 SF14 mod8=5

*0 41 *2 *3 *4 *5 *5 *7 *8 49 410 411 *12 413 *14

*6 *7 *8 *9 *10 *11 *0 41 f *2 43 *4 *5 *6 *7 *5

RACN lOma lOma

1 ll t

AOCtSSbta SFNnrncl8=6 1 SFNnıod8=7

*5 *1 *2 *3 *4 *5 *6 47 *8 *9 .410 .411 *12 *13 *14

‘l *10 1411 *0 141 *2 1.43 144 l I I I9 İO .41.1

PACH lOmssıb-4taraıd

10 ma

1 ili

,c. Pıa-

C• ot

ÇACC ş/fr/sQ

er Ct-l)

J

(T’

t::

[t:[t:izIJiz[LL

CÖM? sL1,., cİt)iİ £4



Random Access Channel Case

e Sub Channels how to use Access Slots?

SFN1

AS8

1 1 — 1

UE2(sub dınıınel O-.2)

SFNtIO

•1

SFN1

jll4 AS ASI2

1 1 ı ili i i t —

• IfUEI can use ali sub channels(O ‘-11).

• If UE2 can only use sub channels (O-’2).

• time interva between two PRACH preambles.

UE1(iubchaırnc1 :0—11)SFNP0

PKACH 1 1

SFNZ •

AS1

1 1 t 1 1 1 11 t


WCDMA UE Behaviors in Idle Moda

Access Service Class

• The PRACH resources can be ciassifled into several ASCs,

sa as ta provide RACH applications with different priorities [11r[T

L[

• For Frequency Division Dupex (FDD) moda, the PR.ACH resources include access

timeslots and preamble signatures, which can be ciassifled into several ASCs, so as

to provide RACH applications with different priorities.

• The ASCs range from 0 to 7, and the quantity of ASCs la 8. ‘0” indicates the highest

priority and “7” indicates the Iowest priority.

• Set ASC of PRACH through ADD UPRACHASC, modify it through MOD

UPRACHASC, and remove itthrough RMV UPRACHASC.

L

f-ıe. t-,EİzİzİzE

Confldential Information of Huawei. No Spreading Without Permission

[


Access Control

• ‘Access Control” is used by network operators to prevent

overload of radio access channels under critical conditions

Access class 0 Access Ctass 9

Access class 11 Access Class 15

Accessclassl0

. The access class number is stored in the SIM/USIM.

• Access class 0—9 are allocated ta ali the users. And these 10 ciasses show the same

priority.

• Access class 11—15 are allocated to specific high priarity users as follows. (The

enumeration is not meant as a priority sequence):

Access class 15: PLMN staff

Access class 14: users subscribing ta emergency services

Access class 13: public organizations

Access class 12: users subscribing ta security services

Access ciass 11: users responsible for PLMN management

• Access Class 10 indicates whether or not network access for Emergency Calis is

aflowed for UEs with access ciasses Oto 9 orwithout an IMSI. For UEs with access

ciasses 11 ta 15, Emergency Calis are not allowed if both ‘Access ciass 10” and the

relevantAccess Class (11 ta 15) are barred. Otherwise, Emergency Calis are ailowed.


rWCDMA UE ehaviors in Idle Mode [

Mapping between AC and ASC

• The AC-ASC mapping information is optional and used for

the System Information Block 5 (81B5) oniy [• AC-ASC mapping case

signature 0—1 [ACO b.ASC0

SubChanııel:G—11 EE

______________

iz• Set the mapping between AC and ASC through ADD UPRACHACTOASCMAP,

modify it through MOD UPRACHACTOASCMAP, and remove it through RMVUPRACHACTOASCMAP.

EizLizizizEE

Confidential !nformation of Huawei. No Spreading Without Permission

E


Random Access Procedure


t:fl


Random access procedure

1. Derive the available uplink access slots, in the next fuli access slot set, forthe set of available RACH sub-channels within the giyen ASC. Randomiyselect one access slot among the ones previously deternıined. If there is naaccess slot available in the selected set, randomly select one uplink accessslot corresponding to the set of available RACH sub-channels within the giyenASC from the next access slot set. The random function shall be such that reach of the allowed selections is chosen with equal probability. L2. Randomly select a signature from the set of available signatures within thegiyen ASC.

o 3. Set the Preamble Retransmission Counter to Preamble_ Retrans. Max.

o 4. Set the preamble transmission power and Commanded Preambls Power toPreamb!e İnitial Power.

5. Transmit a preamble using the selected uplink access slot, signature, andpreamble transmission power.

1•

6. If na positive ornegative acquisition indicator(Al +1 nor—1)ı°’t° ,ıc5e’ <

corresponding to the selected signature is detected in the downlink access slotcorresponding to the seleoted uplink access slot:

• A: select the next available access slot in the set of available RACH [sub-channels within the giyen ASC;

B: select a sig nature;

• C: increase the preamble transmission power and CommandedPreamble Power by Power Ramp Step, whereas the maximum value ofpreamble transmission power is equal to MaxallowedUİTxPower. [D: Decrease the Preamble Retransmission Counter by one. lf thePreamble Retransmission Counter> 0 and Commanded PreamblePower — maximum allowed power < 6dB, then repeat from step 5.Otherwise exit the physical random access procedure.

7. If a negative acquisition indicator corresponding ta the selected signature isdetected in the downlink access slot corresponding ta the selected uplinkaccess slot, exit the physical random access procedure.

8. If a positive acquisition inciicator corresponding to the selected signature isdetected, UE transmits the random access message three or four uplinkaccess slots after the uplink access slot of the last transmitted preamble. Afterthat, exit the physical random access procedure.

LLL


Lr


RRC Connection Message

Typical RRC connection messages:

RRC_CONNECTION_REQUEST

RRC_CONNECTION_SETUP

RRC_CONNECTIONSETUP_COMPLETE

RRC_CONNECTION_RELEASE

• When a UE needs network service, it first sets up RRC corınection as foflows:

The UE sends a RRC CONNECTION REQUEST message from the ceil

where it camps to the RNC.

The RNC allocates related resources for the UE and sends an RRC

CONNECTION SETUP message ta the UE.

The UE sends a RRC CONNECTION SETUP COMPLETE message ta the

RNC. The RRC connectiorı setup ends.

Confidential Information of Huawei. Na Spreading Without Perrnission

• N300

UE Timers and Constants

T300

Parameter name: Timer 300 [ms]

Recommended value: D2000, nameiy 2s

N300

Parameter name: Constant 300


Content: T300 is started when UE sends the RRC CONNECTION REQUEST

message. it is stopped when (JE receives the RRC CONNECTION SETUP

message. RRC CONNECTION REQUEST wili be resent upon the expiry of

the timer if V300 is Iower than or equal to N300, else enter idle mode,

Value range: D100, D200, D400, D600, D800, D1000, D1200, D1400, D1600,

D1800, D2000, D3000, D4000, D6000, D8000

Physical vaiue range: 100, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800,

2000, 3000, 4000, 6000, 8000

Physical unit: ms

Set this parameterthrough SET UIDLEMODETIMER, query it through j,.ŞIUIDLEMODETIMER.

D Content: Maximum number of retransmissions of the RRC CONNECTION

REQUEST message.

Value range: 0-7

D Physical value range: 0-7

D Physical unit: None

D Set this parameter through SET UDLEMODETIMER, query it through LIUIDLEMODETIMER.

Confıderıtial Information of Huawei. Na Spreading Without Permission

WCDMA UE Behaviors in ldIe Mode

• T300

EEİZ[TE

E[T[[TE(TEE[TEDELE

1- ....---


UE Timers and Constants (ConL)

N300 —

RRC Connection Request



RNC

T300T

Confidential Information of Huawei, No Spreading Without Permission

• N381

UE Timers and Constants(ConL)

• T381

Parameter name: Timer 381 [ms]

Reconımended value: D600, namey 600ms

e N381

Parameter name: Constant 381

Recommendedvalue: DI (1)

Content: T381 is started after the RNC send message “RRC CONNECTIONSETUP”(or”CELL UPDATE CONFIRM11).fT381 expire and RNC does notreceive “RRC CONNECTİON SETUP COMPLETE”(or the response of ‘CELLUPDATE CONFIRM”) and V381 is smaller than N381, RNC resend “RRCCONNECTION SETUP”(or “CELL UPDATE CONFIRM’) and restart timerT381 and increase V381. If RNC receive “RRC CONNECTION SETUPCOMPLETE’(or the response of”CELL UPDATE CONFIRM”), T381 wili bestopped.

Value range: DO, D100, D200, D300, 0400, D500, D600, 0700, D800, D900,

D1000, D1200, D1500, 02000

Actual value range: 0, 1001 200, 300, 400, 500, 600, 700, 800, 900, 1000,1200, 1500, 2000

Unit: ms

D Set this parameterthrough SET UCONNMODETIMER, query itthroughiIUCONNMODETIMER.

Content: Maximum number of resend times of message “RRC CONNECTION

SETUP”.

Value range: 01, D2, D3, 04

Actual value range: 1, 2, 3, 4

D Set this parameter through SET UCONNMODETIMER, query it through j]UCONNMODETIMER.



T381

EE

E[TrUrt;DEE1

EEEELEIZ1


UE Timers and Constants(ConL.)

UH


RRC Connection Setı.ıp

RNC

RRC Conneetion Setup

RRC Conııection Setup

//

/

T381

7—N381



RRC Connection Establish Channel [Type and Bit Rate• RrcCause

Parameter name: Cause of RRC connection establishment [o Recommended value: refer to next page

• SigChType

o Parameter name: Channel type for RRC establishment

Recommended value: refer to next page [

Ltdghtsresş

RrcCause

Content: This parameter specifies the cause of RRC connection establishment,that is, the value of the Establishment cause lE in the RRC CONNECTION

REQUEST message.

Value range: ORIGCONVCALLEST, ORGSTREAMCALLEST,ORIGI NTERCALLEST, ORIG BKGCALLEST, ORIGSUBSTRAFFCALLESTI

TERMCONVCALLEST, TERMSTREAMCALLEST, TERMINTERCALLEST,TERMBKGCALLEST, EMERGCALLEST, INTERRATCELLRESELEST,

1 NTERRATCELLCHGORDEREST, REGISTEST, DETACHEST,ORIGHIGHPRIORSIGEST, ORIGLOWPRIORSIGEST, CALLREEST,

TERMHIGHPRIORSIGEST, TERMLOWPRIORSIGEST,TERMCAUSEUNKNOWN, MBMSCALLEST, DEFAULTEST

Set this parameterthrough SET URRCESTCAUSE, query it through LŞIURRCESTCAUSE. -.

EEEE



SigChType

Content: This parameter specifies the channel type and bit rate for RRC

connection establishment.

Value range: FACH, DCH_3.4K_SIGNALLING, DCH_6.81Ç$IGNALLING,

DCH.J3.6K_SIGNALLING, DCH_27.2K_SIGNALLING

• FACH: The RRC connection is set up on the common channel.

• DCH_3AK_SIGNALLING: The RRC connection is set up on the 3.4

kbitls dedicated channel.

• DCH_6.8K_SIGNALLING: The RRC connection is set up on the 6.8

kbitls dedicated channel.

• DCH_13.6K$IGNALLING: The RRC connection is set up on the 13.6

kbit/s dedicated channel.

• DCH_27.2K_SIGNALLING: The RRC connection is set up on the 27.2

kbit/s dedicated channel.

u Set this parameterthrough SET URRCESTCAUSE, query it through 1Ş1URRCESTCAUSE.



DRIGCONVCALLEST DCH_1 3.6K_SIGNALLI NG

ORIGSTREAMCALLEST DCH_1 3.6K_SIGNALLING

ORIGINTERCALLEST DCH_1 3.6K_SIGNALLING

ORIGBKGCALLEST DCH_1 3.6K_SIGNALLING

ORIGSUBSTRAFFCALLEST DCHI 3,6K_S!GNALLING

TERMCONVCALLEST DCH_1 3.6K_SIGNALLING

TERMSTREAMCALLEST DCHİ 3.6KSIGNALLING

TERMINTERCALLEST DCH_1 3.6K_SIGNALLI NG

TERMBKGCALLEST DCH_1 3.6K_SIGNALLI NG

EMERGCALLEST DCH_1 3.6K_SIGNALLING

INTERRATCELLRESELEST DCH_3.4K_SIGNALLING

INTERRATCELLCHGORDEREST DCH_3.4K_SIGNALLING

REGISTEST DCH_1 3.6K_SIGNALLING

DETACHEST FACH

ORIGHIGHPRIORSIGEST DCH_1 3.6K_SIGNALLING

ORIGLOWPRIORSIGEST FACH

CALLREEST DCH_3.4K_SIGNALLING

TERMHIGHPRIORSIGEST DCH_13.6K_SIGNALLING

TERMLOWPRIORSIGEST FACH

TERMCAUSEUNKNOWN FACH

MBMSCALLEST DCH_3.4K_SIGNALLING

DEFAULTEST DCH3.4K_SIGNALLING

r

t:

EE

E1;E

EEE


E

EELü

t:


Thank youwww. huaweicörn


1wcdma Ran14 Radio Net Fea Alg Tr1 Idle Mode

Documents

Transcript of 1wcdma Ran14 Radio Net Fea Alg Tr1 Idle Mode