WCDMA RANİ4 Radio Network Features and Algorithms Training 1
HUAWEI TECHNOLOGIES CO., LTD.
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Contents 1 WCDMA RANİ4 UE Behaviors in Idle Mode 2 WCDMA RANİ4 Power Control Algorithm and Parameters 3 WCDMA RANİ4 Handover Algorithm and Parameters
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WCDMABAN14 UE Behaviors in Idle Mode
WCDMA UE Behaviars in Idte MDde
WCDMA UE Behaviors inidleMode 1 wvw.huawei.com
Copyright © 2012 Huawel TechnaIoies Co., Lid. AU rights resrved.
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WCDMA UE Behaviors in Idle Mode
Foreword UE behaviors in idle mode include: PLMN selection System information reception CeU selection and reselection Location registration Paging procedure Access procedure
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• 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 and takes 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 is of two types: periodical location registration and the location registration necessitated by 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 mode to connected mode.
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WCDMA UE Behaviors n Idle Mode
References •
3GPP TS 22.0.11: Service Accessibility
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3GPP TS 23.122: NAS Functions Related ta MobiZe Station (MS) in Idle Mode
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3GPP TS 24.008: Mobite Radio Interface Layer 3 Specification; Gore Network Protocos Stage 3 -
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3GPP TS 25.304: UE Procedures in Idle Mode and Pracedures for CeB Reselection in Cohnected Mode
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3GPP TS 25.331: Radio Resource Control (RRC)
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3GPP TS 31.102: Characteristics of The USIM Application
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WCDMA UE Behaviors in Idle Mode
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
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WCDMA UE Behaviors in IdI Mode
Contents 1. PLMN Selection 2. System Information Reception OorJc t 3. CelI Selection and Reselection 4. Location Registration 5. Paging Procedure
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WCDMA UE Behaviors in İdle Mode
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Contents
1. PLMN Selection 2. System Information Reception 3. CelI Seection and Reselection 4. Location Registration
5. Paging Procedure 6. Access Procedure
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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
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• 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
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• Typical scenario of first occasion is the first time a new UE is put into use. • The second occasion is very common.
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WCDMA UE Behaviors in Idle Mode
) 1 Ceil Search (Cont 4 [c>
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• Step 1: Slot synchronization During the first step of the celi search procedure, the UE uses the primary synchronisation 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.
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WCDMA UE Behavicrs in dIe Mode
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• 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 by the network plus the PLMN code of the registered PLMN that downloaded the list. .{ıe£
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WCDMA UE Behaviors in Idle Mode
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
• The UE can get system information from PCCPCH, and the PLMN information is transmitted in MIG of PCCPCH. If so, e After getting the MIB, the UE can judge whether the current PLMN is right one. search wili the UE not, if MIB; the from the UE wili get SIB scheduling information another carrier, do this procedure again. • The priority order of automatic PLMN selection mode:
1
HPLMNs
Home PLMNs
2
PLMNs contained in the User Controlled PLMN Selector with Access Technology’ data filed in the SIM excluding the previously selected PLMN
The PLMNs are arranged in priority ard er
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PLMNs contained in the “Operator Controlled PLMN Selecior with Access Technology’ data flled in the SIM excluding the previously selected PLMN
The PLMNs are arranged in priority order
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Other PLMN/Access technology combinations with the high quality of received signals axcluciing the previously selected PLMN
The PLMNs are arranged in priority order
5
Other PLMNJAccess technology combinations excluding the previously selected PLMN
The PLMNs are arranged in the descending order of signal quality
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Previously selected PLMN
The PLMN selected by the UE before automatic PLMN selection
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(T WCDMA 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 j;
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• The MCC and MNCJ which are in the PLMN identity of the HPLMN, match the MCC and 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. 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 serve D as the current serving VPLMN) can be compared with the priority level of a selected PLMN.
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WCDMA UE Behaviors in !de Mode
Contents 1. PLMN Selection 2. System Information Reception 3. CelI Seection and Reselection 4. Location Registration
5. Paging Procedure 6. Access Procedure
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WCDMA UE Behaviors in dIe Mode
Structure of System Information System information is organized as a tree, inciuding: MIB (Master Information Block) o
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SB (Scheduling Block) SIB (System information Biock)
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• 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.
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WCDMA UE Behaviors in Idle Mode
System Information SIBİ: contains the system information for NAS and the ç’-’ C% Q. n c. timer/counter for UE I?Z
• 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.
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L WCDMA UE Behaviors in Idle Mode
Reception of System Information (ıle
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The UE shaU read system information broadcast on a BCH transport channel when the UE is in idle mode or in
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connected mode, that is, in CELLFACH, CELL_PCH, or URA_PCHstate o1s P.ACI 4 ç_tci-i
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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
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WCDMA UE Behaviors in Idle Mode
Contents 1. PLMN Selection 2. System Information Reception 3. Celİ Selectiorı and Reselection 4. Location Registration 5. Paging Procedure 6. Access Procedure
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t WCDMA 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
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• 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 any PLMN 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 used immediateiy before the UE leaves the connected mode. When returning to the idle mode after an emergency cali on any PLMN, the UE shali seiect an acceptable ceil to camp on, Candidate celis for this selection 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 an acceptable celi on any PLMN in the state “Any celi selection”.
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WCDMA UE Behaviors in Idle Mode
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WCDMA UE Behaviors in dIe Mode
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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
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WCDMA UE Behaviors in Idle Mode
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
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• 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 is suitable, 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.
Squeı
Celi selection quality value (dB)
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 Minimum required quality Ieve in the celi (dB)
Qquaımın
Minimum required RX level in the celI (dBm) Pcompensation
UE_7XPVVR_ MAX_RACH
P_MAX
Max (UEJXPWR_MAX_RACH
—
PMAX, 0) (dB)
MaxAiowedUİTxPower, Max allowed UE UL Tx Power (dBm)
Maximum RF output power of the UE (dBm) Confidential Information of Huawei. No Spreading Without Permission
WCDMA UE Behaviors in Idle Mode
Parameters of S Criterion • Qquaim!n Parameter rıame: Mm quality eveI Recommended value: -18, nameiy -18dB
• Qrxlevmin Parameter name: Mm Rx level
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Recommended vaiue: -58, nameiy -1 l5dBm
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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 Physical unit: dB D Setthis parameterthroughADD UCELLSELRESEL, queryitthroughkŞi D UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
Qrelevmin Content: The minimum required RX eveI corresponding to CPICH RSCP. The D 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 -13 :-25) Physical value range: -115-’-25; step: 2 (-58: -115, -57: -113, Physical unit: dBm o Set this parameter through ADD UCELLSELRESEL, query it through L]: UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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WCDMA UE Behaviors in Idle Mode
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 LI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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WCDMA UE Behaviors in Idle Mode
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
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WCDMA UE Behaviors iri Idle Mode
Measurement Start Critc.ria • lntra-frequency measurement: Squaı
qımeas
ualmeas q0
Sintarch
Qquaımin
uaımin + Sintrasearctı q0
• 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:
Ceil quality value (dB)
Sguai
Minimum reguired quallty eve? in the ceil (dB)
quaımı’n
- Measurement threshold for UE to trigger intra-frequency cel? resetection
Sintmsea,.ch
Measurement threslıold for UE to trigger inter-frequency cel? reseIecon Ssea,chpTm
Meesurernent threshold for UE to trigger inter-RAT cel? reselection
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WCDMA UE Behavors in Idle Mode
Measurement Start Criteria (Cont.) Inter-frequency measurement: Squaı
Sinıersearch
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o qualmeas -Q qualrnın <8.ıntersearch
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uaımin 0 q
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• 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.
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WCDMA UE Behaviors in 1db Mode
Measurement Strt Criteria (CcnL) • Inter-RAT measurement: SşearchPATrn
Şquaı:
qquaıms
quaırneas
—
searhRATm
guaımin
Qquatmin
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• 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.
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WCDMA UE Behaviors in Idle Mode
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
!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 celi reseiection procedure wilI be started. This parameter is not configured when its value is 127. Value 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.
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• 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 LŞI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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WCDMA UE Behaviors in Idle Mode
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 connected mode
D
Recommended value: 4, nameiy 8dB
• IdİeSinter.search Content: A threshold for inter-frequency celi reselection in idle mode. When D 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 ceil reseection procedure wiil be started. This parameter is not configured when itsvaue is 127. D Value range: {{-16-1O}, {127}} Physical value range: -32-2O; step: 2 D Physical unit: dB D Set this parameter through ADD UCELLSELRESEL, query it through i,ŞI D UCELLSELRESEL, and modify it through MOD UCELLSELRESEL. ConnSıntersearch Content: 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}} Physical value range: -32-2O; step: 2 D Physical unit: dB D Set this parameter through ADD UCELLSELRESEL, query it through LI D UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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WCDMA UE Behaviors in Idle Mode
Parameters of Measurement Start Criteria (Cont.) • SsearchRat Parameter name: inter-RAT ceil reselection threshold Recommended value: 2, nameiy 4dB
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SearchRat o Content: A threshold for inter-RAT celi reselection. When the quality (CPICH Ec!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.
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WCDMA UE Behaviors in Idle Mode
Measurement Start Criteria Description Intra frequency measuremn
Inter fteçuency rneurernen Inter-RAT measuremen
Measuring intra-frecıuencyneghboring cells Measwing inter-frequency neihoring ceHs
Measurement not started
Measuriftg ınter-RAT neighboıing cefis
• Threstıoklof
1 Sm+
çu*in
Smter,ıdı
+
+
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-
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• 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.
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WCDMA UE Behaviors in Idle Mode (‘t,
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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 Qhystls is used for Qhysts to calculate Rs. • The UE shall rank the celis according to the R criterion, derive Qmeas,n and Qmeas,s and 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 TDD or GSM celi. If an FDD ceil is ranked as the best celi and the quaiity measure for ceil selection 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 cel selection 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 R criteria specifled above. in this case, however, the UE uses the measurement quantity CPICH Ec/NO for deriving the Qmeas,n and Qmeas,s and then n is used for 3 calculating the R values of the FDD celis. The offset Qoffset2s used for Qhysts to Qhyst2s is hysteresis the caiculate Rn, to Qoftsets,n calculate Rs.
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WCDMA UE Behaviors in Idle Mode
Hysteresis and Time Interval Quallty
r cııeas,n
F Ojııeas,s Time
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ç • in ali the previous cases, the UE can reselect a new celi oniy when the following conditions are met: The new ceil is better ranked than the serving celi during a time interval
Treselections. More than one second has elapsed since the UE cam ped on the current serving ceH.
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WCDMA UE Behaviors in ldfe Mode
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
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i 3
QualMeas Content: Measurement quantity of ceil selection and reselection. it can be set D to CPICH Ec/NO or CPICH RSCP. Value range: CPICH_ECNO(CPICH Ec/NO), CPICH_RSCP(CPICH RSCP) D D Physical value range: CPICH_ECNO, CPICH_RSCP Physical unit: None Set this parameter through ADD UCELLSELRESEL, query it through kI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL. Treselections Content: If the signal quality of a neighboring ceil is betterthan that of the D serving 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 Physical value range: O—31; step: 1 D Physical unit: s D Set this parameter through ADD UCELLSELRESEL, query it through Lİ D UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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r WCDMA 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 o
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Parameter name: Hysteresis 1 for connected mode Recommended value: 2, nameiy 4dB
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e IdleQhystls Content: The hysteresis value of the serving FDD celis in dIe mode in case the quality measurement for celi selection and reselection is set ta CPICH RSCP. 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 LI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL. • ConnQhystls Content: The hysteresis value of the serving FDD celis in connected mode in D case the quaiity measurement for ceil selection and reselection iş set to CPICH 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 Physicai vaiue range: 0—40; step: 2 Physical unit: dB Set this parameterthrough ADD UCELLSELRESEL, query it through L,ŞI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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WCDMA UE Behaviors in dIe Mode
Parameters of R Criteria (Cont.) ldleQhyst2s D
Parameter name: Hysteresis 2 for idle mode
D
Recommended value: 1, nameiy 2dB
• ConnQhyst2s D
Parameter name: Hysteresis 2 for connected moda
D
Recommencied value: 1, nameiy 2dB
• !dleQhyst2s Content: The hysteresis value of the serving FDD cells in idle mode in case D 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}} Physical value range: 0-40; step: 2 D D
Physical unit: dB Set this parameterthrough ADD UCELLSELRESEL, query it through ,ŞI UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
ConnQhyst2s Corıtent: 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}} Physical vaiue range: 0’-40; step: 2 D Physical unit: dB Set this parameterthrough ADD UCELLSELRESEL, query it through LSI D UCELLSELRESEL, and modify it through MOD UCELLSELRESEL.
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L WCDMA UE Behaviors in idle Mode
Parameters of R Criteria (Cont.) • fdleQoffsetlsn Parameter name: İclleQoffsetlsn Recommended value: 0, nameiy 0dB
• ConnQoffsetlsn Parameter name: ConnQoffsetlsn Recommended vaue: 0, nameiy 0dB
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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. Value range: -50--50 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/ MOD UINTERFREQNCELL.
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WCDMA UE Behaviors in [dIe Mode
Parameters of R Criteria (Cont.) • (dleQoffset2sn Parameter name: IdleQoffset2sn Recommended value: 0, nameiy 0dB
• ConnQoffset2sn o
Parameter name: ConnQoffset2sn Recommended value: 0, nameiy 0dB
• IdleQoffset2sn 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! MOD UINTERFREQNCELL. ConnQoftset2sn Content: Offset of ceil CPICH Ec/No measurement value in celi selection or reselection when the UE is in connected mode. Value range: -50--50 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.
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WCDMA UE Behaviors n Idle Mode
Contents 1. PLMN Selection
2. Systern 1 nformafio n Reception 3. Celİ Setection and Reselection 4. Location Registration CU
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5. Pagrng Procedure 6. AccessProcedure
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WCDMA UE Behaviors in Idle Mode
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 UE does 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 new LA er RA. That is, the LA or RA is differentfrom that recorded in the USIM before 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:
RNC
UE
Initial 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 Updating riodic Updating
Initial UE Message (IMSI detach indication)
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t (4 WCDMA UE Behaviors in Idle Mode
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
t,, (T.
operation) • T3212 is set through T3212 on the RNC side • T3312 is set on the CN side
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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 is sent 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. • T3312 signaling procedure is shown as following: T3312 is sent to UE in the two following scenarios.
•
CN Initial Direct Transfer area update request:
Initial UE Message
RA Updating Periodic Updating
c 1;
periodic R4.. update timer
Downlink Direct Transfer (routing area update accept) UE
CN
RNC Initial Direct Transfer (attach reauest Downlink Direct Transfer (attach accept)
Initial UE Message (attach request) Direct Transfer (attach accept)
periodic F?A update timer
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L t
WCDMA UE Behaviors in Idle Mode
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.
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r WCDMA 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
D
update. Periodical location update is implemented by MS through the location update procedure. 0: The periodical update procedure is not used. This parameter is vaHd oniy when [CN domain ID] is set as CS_DOMAIN. Value range: 0-255 Physical value range: O—1530; step: 6 Physical unit: mm Set this parameterthroughADD UCNDOMAIN, queryitthroughLŞi UCNDOMAIN, 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 parameter is valid oniy when [CN domain ID] is set as CS_DOMAIN.
Value range: NOT_ALLOWED, ALLOWED Physical value range: NOT_ALLOWED, ALLOWED D Physical unit: None o Set this parameterthroughADD UCNDOMAIN, query itthroughjŞI UCNDOMAIN, modify it through MOD UCNDOMAIN.
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IJ
WCDMA UE Behaviors in Idle Mode
Contents 1. PLMN Selection 2. System Information Reception 3. Ceil Seection and Reselection 4. Location Registration 5. Paging Procedure
6. Access Procedure
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WCDMA UE Behaviors in Idle Mode
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Paging Initiation
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• CN initiatd paging: • Establish a signaling connection • UTRAN initiated paging:
t;
• Trigger the celi üpdate procedure • Trigger reading of updated system informatian
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• 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 UTRAN transmits the paging message from CN ta UE through the paging procedure on Uu interface, which wiil make the UE initiate a signaling connectian setup process 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 wiil initiate 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, so that the UE can read the updated system message.
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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 paging RNCİ
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• 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.
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WCDMA UE Behaviors in dIe Mode (.1
r • Paging type 2: If UE is in CELL_DCH or CELL FACH state, the paging message wiH be transmitted 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 on DCCH channel.
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WCDMA UE Behaviors in Idle Mode
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. ,
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WCDMA UE Behaviors in Idle Mode
DRX Procedure. (Coht.) • The value of the Paging Occasion is deterrnirıed as follows; Paging Occasion (CELL SFN)
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• Paging SFN formula: Paging Occasion (CELL SFN) = {(IMSİ div K) mod (DR>< cycİe Iength div PBP» *PBİD ÷ *)< cycle Jangth + Frame Offset and the requirement is the caIcuated CELL SFN must be below n =0, 1, 2 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 *
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WCDMA UE Behaviors in Idle Mode
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 —
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0
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WCDMA UE Behaviors in ldle Mode
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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
—
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• The timing relationship between PICH and SCCPCH is defined by the above figure, and the interval is 3 slots duration (2ms, 7680 chips).
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WCDMA UE Behaviors in Idle Mode
.: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 when a UE is in idle mode. Vaiue range: 6—9 Physical value range: 6’-9 Physical unit: None Set this parameterthroughADD UCNDOMAIN, query itthroughŞI UCNDOMAIN, and modify it through MOD UCNDOMAIN. • PICHMode Content: indicating the number of Pis contained in each frame on the PICH. D Value range: VİB, V36, W2, V144 D Physical value range: 18, 36, 72, 144 D Physical unit: None D 0 Set this parameterthroughADD UP!CH, query itthrough LST UPICH.
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r WCDMA UE Behaviors in Idle Mode
Parameters of DRX (Cont.) MaccPageRepeatTimes Parameter name: Number of page re-TX Recommended value: 1
• MaccPageRepeat Times Content: This parameter defines the times of retransmission of paging 0 messages. 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 Lİ UDPUCFGDATA.
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WCDMA UE Behaviors iri dIe Mocie
Contents 1. PLMN Seleotion 2. System Information Reception 3. Cetİ Selection and Reselection 4. Location Registration 5. Paging Procedure 6. Access Procedure
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WCDMA UE Behaviors in dIe Mode
Two Working Modes of UE • Idlemode:
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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
E t • 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 Network Temporary Identity), which is the ID of one RRC connection. CS3
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1WCDMA 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
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WCDMA UE Behaviors in Idle Mode
RACH Sub-Channets • The access siots of different RACH sub-channels are iI(ustrated by the following table:
• 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.
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WCDMA UE Behaviors in Icfie Mode
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WCDMA UE Behaviors in Idle Mode
Random Access Channel Case e
Sub Channels how to use Access Slots?
UE1(iubchaırnc1 :0—11) SFNP0
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• IfUEI can use ali sub channels(O ‘-11). • If UE2 can only use sub channels (O-’2). time interva between two PRACH preambles. •
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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
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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.
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WCDMA UE Behaviors in Idle Mode
Access Control • ‘Access Control” is used by network operators to prevent overload of radio access channels under critical conditions Access class 0 Access class 11
Access Ctass 9 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.
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WCDMA 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
• Set the mapping between AC and ASC through ADD UPRACHACTOASCMAP, modify it through MOD UPRACHACTOASCMAP, and remove it through RMV UPRACHACTOASCMAP.
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WCDMA UE Behaviors in Idle Mode
Random Access Procedure
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WCDMA UE Behaviors in Idle Mode Random access procedure 1. Derive the available uplink access slots, in the next fuli access slot set, for the set of available RACH sub-channels within the giyen ASC. Randomiy select one access slot among the ones previously deternıined. If there is na access slot available in the selected set, randomly select one uplink access slot corresponding to the set of available RACH sub-channels within the giyen ASC from the next access slot set. The random function shall be such that each of the allowed selections is chosen with equal probability. 2. Randomly select a signature from the set of available signatures within the giyen ASC. o 3. Set the Preamble Retransmission Counter to Preamble_ Retrans. Max. o 4. Set the preamble transmission power and Commanded Preambls Power to Preamb!e İnitial Power. 5. Transmit a preamble using the selected uplink access slot, signature, and preamble transmission power. ° t 6. If na positive ornegative acquisition indicator(Al +1 nor—1)ı°’ corresponding to the selected signature is detected in the downlink access slot corresponding 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;
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B: select a sig nature; • C: increase the preamble transmission power and Commanded Preamble Power by Power Ramp Step, whereas the maximum value of preamble transmission power is equal to MaxallowedUİTxPower. D: Decrease the Preamble Retransmission Counter by one. lf the Preamble Retransmission Counter> 0 and Commanded Preamble Power 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 is detected in the downlink access slot corresponding ta the selected uplink access slot, exit the physical random access procedure. 8. If a positive acquisition inciicator corresponding to the selected signature is detected, UE transmits the random access message three or four uplink access slots after the uplink access slot of the last transmitted preamble. After that, exit the physical random access procedure.
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WCDMA UE Behaviors in Idle Mode
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.
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WCDMA UE Behaviors in ldIe Mode
UE Timers and Constants T300 Parameter name: Timer 300 [ms] Recommended value: D2000, nameiy 2s
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N300 Parameter name: Constant 300 Recommended value: 3
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T300
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,.ŞI UIDLEMODETIMER. • N300 D
D D D
Content: Maximum number of retransmissions of the RRC CONNECTION REQUEST message. Value range: 0-7 Physical value range: 0-7 Physical unit: None Set this parameter through SET UDLEMODETIMER, query it through LI UIDLEMODETIMER.
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WCDMA UE Behaviors in Idle Mode
UE Timers and Constants (ConL) RNC RRC Connection Request
T300T RRC Connection Request N300
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RRC Connection Request
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WCDMA UE Behaviors in Idle Mode
UE Timers and Constants(ConL)
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• T381 Parameter name: Timer 381 [ms] Reconımended value: D600, namey 600ms e
N381 Parameter name: Constant 381 Recommendedvalue: DI (1)
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Content: T381 is started after the RNC send message “RRC CONNECTION ). fT381 expire and RNC does not 11 SETUP”(or”CELL UPDATE CONFIRM ON SETUP COMPLETE”(or the response of ‘CELL receive “RRC CONNECTİ UPDATE CONFIRM”) and V381 is smaller than N381, RNC resend “RRC CONNECTION SETUP”(or “CELL UPDATE CONFIRM’) and restart timer T381 and increase V381. If RNC receive “RRC CONNECTION SETUP COMPLETE’(or the response of”CELL UPDATE CONFIRM”), T381 wili be stopped. 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 Set this parameterthrough SET UCONNMODETIMER, query itthroughiI UCONNMODETIMER.
• N381
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Content: Maximum number of resend times of message “RRC CONNECTION SETUP”. Value range: 01, D2, D3, 04 Actual value range: 1, 2, 3, 4 Set this parameter through SET UCONNMODETIMER, query it through j] UCONNMODETIMER.
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WCDMA UE Behaviors in Idle Mode
UE Timers and Constants(ConL.) RNC
UH RRC Connection Request RRC Connection Setı.ıp
T381 RRC Conneetion Setup
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N381 7 — RRC Conııection Setup
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WCDMA UE Behaviors in Idle Mode
RRC Connection Establish Channel Type and Bit Rate
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• RrcCause Parameter name: Cause of RRC connection establishment o
Recommended value: refer to next page
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• SigChType o
Parameter name: Channel type for RRC establishment Recommended value: refer to next page
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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 LŞI URRCESTCAUSE.
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WCDMA UE Behaviors in dIe Mode
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$IGNALLING, DCH.J3.6K_SIGNALLING, DCH_27.2K_SIGNALLING
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• FACH: The RRC connection is set up on the common channel. • DCH_3AK_SIGNALLING: The RRC connection is set up on the 3.4 kbitls dedicated channel. • DCH_6.8K_SIGNALLING: The RRC connection is set up on the 6.8 kbitls dedicated channel. • DCH_13.6K$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. Set this parameterthrough SET URRCESTCAUSE, query it through 1Ş1 URRCESTCAUSE.
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r WCDMA UE Behaviors in dIe Mode
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
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WCDMA UE Behaviors in Idle Mode
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