ZTE UMTS Access Control
July 11, 2022 | Author: Anonymous | Category: N/A
Short Description
Download ZTE UMTS Access Control...
Description
UMTS Access Control
ZTE University
Content
UMTS System Information Broadcasting
UMTS Paging
UMTS Random Access
UMTS RRC Connection Setup and Release
Access Failed Case
System Broadcastin Broadcasting g
The system information broadcasted over the BCH channel mainly includes the following contents:
Public Land Mobile Network (PLMN) ID, location area (LA), route area (RA) Information on the timers and counters related to the Radio Resource Control (RRC) connections Configuration information of the UTRAN registration area (URA) Cell selection and reselection parameters Parameters for configuring the common channels, such as FACH, PCH, and RACH Information on the uplink interference related to the auxiliary power control UE measurement control message over the idle or common channel Parameters of the adjacent cell
System information
Master information block (MIB) Schedule block (SB)
System information block (SIB)
ZTE UTRAN supports SIB1, SIB2, SIB3, SIB5, SIB7, SIB11, SIB11bis, SIB18.
MIB SB1/SB2
SIB1
SIB2
SIB3/4
SIB15
SIB5/6
SIB7
SIB18
SIB11 SIB11/12 /12
Scheduling levels of the SIBS Information blocks scheduled by MIB: SB, SIB1, SIB2, SIB3, SIB5, SIB7 Level 2 Information blocks scheduled scheduled by SB1: SIB11, SIB11, SIB18
Level 1
Broadcast interval of level 2 >= broadcast interval of level 1
SIB Block SIB
Content
Controlled by
SIB1
the CN information, UE behavior related timers and counters
RNC
SIB2
URA ID of a cell
RNC
SIB3/4
cell selection and cell reselection
RNC
SIB5/6
common transport channels and common physical channels
RNC
SIB7
parameters needed in the calculation of the PRACH preamble power
RNC/NodeB
SIB11/12 SIB1 1/12
cell measurement control information.
RNC
SIB 11bis Compensation Compens ation of SIB 11
RNC
SIB 15
Information for location service
RNC
SIB 18
the PLMN tag of neighbor cell
RNC
System broadcasting UE
NodeB
SRNC
DRNC
system information broadcast scheduler
SYSTEM INFORMATION UPDATE REQUEST
SYSTEM INFORMATION UPDATE RESPONSE System information broadcast
Condition informing UE of idle, CELL_PCH URA_PCH that system information changed Paging（ PAGING TYPE1（
Condition informing UE of CELL_FACH that system information changed
RRC
SYSTEM INFORMATION CHANGE INDICATION
RRC
SIB1
SIB1 mainly contains the CN information, UE behavior related timers and counters.
T300
N312Connected
N300
T313 T313
T312Idle T312Idle
N313 N313
N312Idle N312Idle
N315
T302
T314 T314
N302
T315
T304 T304
T316
N304 N304
T317
T305 T307
T3212Cs T3212Cs ATTIndCs ATTIndCs
T308
NMOPs
N308
Kcs Kcs
T309 T309
Kps Kps
T312 Connected
SIB1
SIB2
SIB2 specifies the URA ID of a cell. With SIB2, the UE in the URA_PCH state can update the URA.
Parameter Name Parameter Description URANum URANum Number of UTRAN registration areas URA[4] ID of a UTRAN registration area
SIB3/SIB4
Parameters in SIB3 and SIB4 are related to the cell selection and cell reselection. SIB3 contains information required by the UE in Idle mode. SIB4 contains information theUE UEinin Connected. If SIB4 isrequired not sent,bythe Connected mode can also receive SIB3.
SIB3/SIB4 Parameter Name Cid QualMeas QualMeas SIntraSearchPre SIntraSearchPre SIntraSearch SIntraSearch
Parameter Description Cell ID Measurement Quantity for Cell Selection and Reselection Sintrasearch Configuration Tag The threshold that triggers the intra-frequency measurement in the cell reselection process SInterSearchPre Sintersearch Configuration Tag SInterSearchPre SInterSearch SInterSearch The threshold that triggers the inter-frequency measurement in the cell reselection process SSearchHCS Pre Pre Ssearc SsearchHCS hHCS Configuration Configu ration Tag SSearchHCS SSearchHCS The threshold that triggers the measurement in the HCS cell reselection process The threshold that triggers the inter-system measurement in the cell reselection SSearchRat process SHCSRatPre SHCSRatPre SHCS,RAT Configuration Configu ration Tag SHCSRat The threshold that triggers the inter-system measurement in the HCS cell reselection process SLimitRat The threshold that triggers the inter-system cell measurement in the cell reselection process QQualMin QQualMin The minimum cell quality requirement level QRxLevMin QRxLevMin The minimum cell receive electrical level threshold DltaQRxLevMinPr DeltaQrxlevmin DeltaQr xlevmin Configuration Configu ration Tag DltaQRxLevMin DltaQRxLevMin The minimum cell receive electrical level threshold increment
SIB5/SIB6
SIB5 and SIB6 are mainly used to configure the common transport channels and common physical channels. SIB5 contains the parameters of the auxiliary common channels IDEL mode; SIB6 contains the control parameters of theincommon physical channels or shared physical channels in connected mode. The UE in Idle mode uses SIB5; the UE in connected mode uses SIB6. If SIB6 does not exist, the UE in the connected mode also uses SIB5.
SIB5/SIB6 Parameter Name
Parameter Description Transmission format index. It is used to indicate the attributes of a transport channel, including channel type, transport format number, TfsIndex number of transport blocks, transport block size, siz e, transmission time interval, coding rate, rate matching attribute. ChType ChType Channel Type TfNum TfNum Transport Format Number TrBlkNum TrBlkNum Number of Transport Blocks RlcSize RlcSize Transport Block Size TTI Transmission Time Interval CodingRate CodingRate Coding Rate RateMatchAttr Rate Matching Attribute CRCSize CRCSize CRC Size NiNumPerFrame Number of NI per Frame NiNumPerFrame CPCId Common Physical Channel ID MichPwr Power(dB) MichChCode MichChCode Channelisation Code No.
SIB5/SIB6 Parameter Name Parameter Description SttdInd STTD Indicator SttdInd AICH STTD Indicator ChCode ChCode AICH Channelisation Code No. AichTranTime AichT ranTime AICH Transmission Transmission Timing AichPwr AICH Power MplexPos MplexPos Multiplexing Position PCHInd Indicator for SCCPCH Carrying PCH DlScraCode DlScraCode SCPICH Scrambling Code ChCode ChCode SCPICH Channelisation Code No ChCode ChCode PICH Channelisation Code No. SttdInd PICH STTD Indicator CPCId Pich Common Physical Channel ID PichPwr PICH Power SttdInd PCCPCH STTD Indicator Signature Signature Available Signature AvailSubChanNum PRACH Available Subchannel Number AvailSubChanNum AvailableSF PRACH Available SF
SIB5/SIB6 Parameter Name PreamScraCode PreamScraCode PcpichPwr PunctLimit SignalFach SignalFach TfcsIndex CtfcNum CtfcNum Ctfc SCCPCHUsage SCCPCHUsage SccpchOffset SttdInd DlScraCode DlScraCode DlChCodeNo DlChCodeNo SlotFmt SttdInd
Parameter Description PRACH Preamble Scrambling Code P-CPICH Power(dBm) Puncturing Limit FACH Usage Index of a transmission format combination set. It must be configured for S-CCPCH or PRACH. Number of transmission format combination c ombination sets. It must be configured for S-CCPCH or PRACH. ID of a transmission format combination. It must be configured for SCCPCH or PRACH. SCCPCH Usage SCCPCH Frame Timing Offset SCCPCH STTD Indicator S-CCPCH Scrambling Code S-CCPCH Channelisation Code No. S-CCPCH Slot Format P-CPICH STTD Indicator
SIB7
SIB7 is the system information block that is updated periodically. The timer of SIB7 is calculated as follows:
Expiration timer = MAX(32,SIB_REP * ExpirationTimeFactor)
SIB_REP is the transmission interval of SIB7 and is obtained at the
time of broadcast scheduling; ExpirationTimeFactor is the timeout factor of SIB7 and is set to 2 invariably.
SIB7 contains the parameters needed in the calculation of the PRACH preamble power. Parameter Name Parameter Description Initial Dynamic Persistence Level DynPstLevelInit
SIB11/SIB12
SIB11/SIB12 is used to configure cell measurement control information. SIB11 specifies the measurement control information required by the UE in Idle mode. specifies the by the measurement controlSIB12 information required UE in FACH state. If SIB12 is not broadcasted, the UE in connected mode can also use the configuration information specified by SIB11.
SIB18
SIB18 specifies the PLMN tag that must be considered by the UE in Idle or connected mode.
Parameter Name Parameter Description NMCC Mobile Country Code of Neighboring Cell NMNC Mobile Network Code of Neighboring Cell
SIB11bis
The content of SIB11bis is same with SIB11, it can alleviate alleviat e the lack of SIB11 space when there is too many adjacent cells.
Parameter Name Parameter Description SIB11ORSIB11BIS Specify if an adjacent cell information can be SIB11ORSIB11BIS broadcast through SIB11bis SIB11bis
Waiting Time After UE Sending RRC CONNECTION SETUP REQUEST Message Parameter Name Description
T300 The timer is started after the UE sends the RRC CONNECTION REQUEST message. The T300 timer timer is stopped when the message RRC CONNECTION SETUP is received, when the timer expires and the retransmit event count is smaller than N300, N300, the the UE retransmits the RRC CONNECTION SETUP REQUEST message.
Range and Step
（100，200，400，600，800，1000，1200，1400，1600， 1800，2000，3000，4000，6000，8000）ms
Default Value
2000ms
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Waiting Time Time After UE Sending RRC CONNECTION SETUP REQUEST Message(T300)(ms)
Maximum Number of Retransmissions of the RRC CONNECTION REQUEST Message Parameter Name Description
N300 If the T300 timer timer expires and the retransmit event count is equal to or larger than N300 but but the the RRC CONNECTION SETUP message has not been received, the UE enters the Idle mode.
Range and Step
［0，7］ 3
Default Value Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Management->Ad vanced Parameter Manage ->UE Timers and Constan Constants ts Infomation ->Maximum Number Number of Retransmissions of the RRC CONNECTION REQUEST Message (N300)
Waiting Time for Receiving "In Sync" from L1 in Idle Mode Parameter Name Description
T312Idle The timer is started when the UE starts to establish the dedicated channel. When the UE finds the number of synchronization indications received from layer 1 is equal to N312Idle, the T312 timer timer is stopped. stopped. If the timer expires, the
Range and Step
physical channel setup fails. ［1，15］s
Default Value
2s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Receiving "In Sync" from L1 in Idle Mode (T312 in Idle Mode)(s)
Maximum Number of "In Sync" Received from L1 in Idle Mode Parameter Name Description
N312Idle The smaller the parameter, it is easier to judge whether the synchronization finishes, but the chance of fake f ake synchronization also increases; the larger the parameter, parameter, the higher the reliability, reliability, but it is more time consuming.
Range and Step
［0，11］ 10
Default Value Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Management->Ad vanced Parameter Manage ->UE Timers and Constants Infomation ->Maximum Numbe Numberr of "In Sync" Received from L1 in Idle Mode (N312 in Idle Mode)
Waiting Time After UE Sending CELL/URA UPDATE Message Parameter Name Description
T302 The counter is started when the UE sends the CELL UPDATE UPDATE or URA UPDATE UPDATE message; the counter is stopped when the UE receives the CELL UPDATE CONFIRM or URA UPDATE CONFIRM message. If the counter T302 expires expires but the number of retransmitted messages is smaller than N302, N302, the the UE retransmits the CELL UPDATE or URA UPDATE message.
Range and Step
（100，200，400，600，800，1000，1200，1400，1600， 1800，2000，3000，4000，6000，8000）ms
Default Value
1000ms
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Waiting Time Time After UE Sending CELL/URA UPDA UP DATE TE Message(T302)(ms)
Maximum Number of Retransmissions of the CELL/URA UPDATE Message Parameter Name Description
N302 When the T302 counter counter expires and the number of the CELL UPDATE or URA UPDATE messages sent by the UE is larger than or equal to N302, N302, the the UE enters the Idle mode.
Range and Step
［0，7］
Default Value
2
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Maximum Number of Retransmissions of the CELL/URA UPDA UPDATE TE Message (N302)
Waiting Time After UE Sending UE CAPABILITY INFORMATION Message Parameter Name Description
T304 When the UE sends the UE CAP CAPABILITY ABILITY INFORMATION INFORMATION message, the timer is started; when the UE receives the UE CAPABILITY CAP ABILITY INFORMA INFORMATION TION Confirmed message, the timer t imer is stopped. When the T304 T304 timer timer expires and the number of the t he CAPABILITY INFORMA CAPABILITY INFORMATION TION messages sent by the UE is smaller than N304 N304,, the UE retransmits the UE CAPABILITY INFORMATION INFORMA TION message.
Range and Step
（100， 200， 400， 1000，2000）ms
Default Value
2000ms
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time After UE Sending UE CAPABILITY CAPABILITY INFORMA INFORMATION TION Message(T304) (ms)
Maximum Number of Retransmissions of the UE CAPABILITY INFORMATION Message Parameter Name Description
N304 When the T304 counter expires and the retransmit event count is equal to or larger than N304, the the UE starts the CELL UPDATE process.
Range and Step
［0，7］
Default Value
2
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Maximum Number of Retransmissions of the UE CAPABILITY CAPABILITY INFORMATION Message (N304)
Period of Cell/URA Update When UE is in CELL_FACH/CELL_PCH/ CELL_FACH/CELL_ PCH/ URA_PCH State Parameter Name Description
T305 The T30 5 timer is started when the UE enters the CELL_FACH, CELL_F ACH, or CELL_PCH/URA_PCH state. When the UE receives the CELL UPDATE CONFIRM or URA UPDATE CONFIRM message, the T305 timer timer is stopped. When the T305 timer timer expires and the UE detects its own serving cell, the UE sends the CELL UPDA UPDATE TE message; when tthe he T305 timer expires and the UE is not in the serving cell, it starts the T307 timer. timer.
Range and Step
（no update，5，10，30，60，120，360，720）min
Default Value Configuration Path
5min View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation -> Period o off Cell/URA Update When UE is in CELL_FACH/CELL_PCH/ URA_PCH State(T305)(min)
Waiting Time for Cell Reselection After UE is out of Service Parameter Name Description
T307 The parameter specifies the waiting time between the time when the UE leaves the serving cell c ell and the time when the UE reselects the cell. The smaller the parameter, parameter, more quickly the UE can reenter the network, but this may increase the load of
Range and Step
the UE and the system. （5，10， 15，20，30，40，50）s
Default Value
5s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Cell Reselection After UE is out of Service(T307)(s)
Waiting Time After Sending RRC CONNECTION RELEASE COMPLETE Message in CELL_DCH State Parameter Name Description
T308 The T308 timer timer is started after the UE sends the RRC CONNECTION RELEASE COMPLETE message. When the T308 timer timer expires and the number of the RRC CONNECTION RELEASE COMPLETE messages sent by the UE is smaller than N308 , the UE retransmits the RRC CONNECTION RELEASE COMPLETE message.
Range and Step
（40， 80， 160， 320）ms
Default Value
80ms
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time After Sending RRC CONNECTION RELEASE COMPLETE Message in CELL_DCH State(T308) (ms)
Maximum Number of Retransmissions of the RRC CONNECTION RELEASE Message Parameter Name Description
N308 When the T308 counter counter expires and the number of the RRC CONNECTION RELEASE COMPLETE messages sent by the UE is larger than or equal to N308, N308, the the UE enters the Idle mode.
Range and Step
［1，8］
Default Value
1
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Management->Ad vanced Parameter Manage >RNC Radio Resource Manag Management ement -> Max Maximum imum Number of Retransmissions of the RRC CONNECTION RELEASE Message(N308)
Waiting Time After Requesting Connection Establishment in Other System(eg. GSM) Parameter Name Description
T309 When the UE receives the CELL CHANGE ORDER FROM UTRAN message, the T309 T309 timer timer is started; when the UE in the new cell successfully receives the response to the connection setup request, the T309 T309 timer timer is stopped. If the
Range and Step
T309 timer expires, the UE returns to the original UTRAN. ［1，8］s
Default Value
8s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time After Requesting Connection Establishment in Other System(eg. GSM) (T309)(s)
Waiting Time for Receiving “In Sync” from L1 In Connected Mode Parameter Name Description
T312Connected The timer is started when the UE starts to establish the dedicated channel. When the UE finds the number of synchronization indications received from layer 1 is equal to N312, T312 is is stopped. stopped. If the T312 timer expires, the physical
Range and Step
channel setup fails. ［1，15］s
Default Value
1s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Receiving “In Sync” from L1 In Connected C onnected Mode(T312 in Connected Mode)(s)
Maximum Number of "In Sync" Received from L1 in Connected Mode Parameter Name Description
N312Connected The smaller the parameter, it is easier to judge whether the synchronization finishes, but the chance of fake f ake synchronization also increases; the larger the parameter, parameter, the higher the reliability, reliability, but it is more time consuming.
Range and Step
（1，2，4，10， 20，50，100，200，400，600，800， 1000）
Default Value
1
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Maximum Numbe Numberr of "In Sync" Received from L1 in Connected Mode (N312 in Connected Mode)
Waiting Time After DPCCH Established in CELL_DCH State Losing Sychronization Parameter Name Description
T313 When the number of synchronization loss indications received by the UE in the DCH state from layer 1 reaches the value of N313,, the UE starts T313. When the UE receives N313 synchronization indications from layer 1 for N315 times, times, it stops the T313 T313 timer. timer. When the T313 T313 timer timer expires, the radio links involved in the lost synchronization fail.
Range and Step
［0，15］s
Default Value
3s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time After DPCCH Established in CELL_DCH State Losing Sychronization (T313)(s)
Maximum Number of Successive "Out of Sync" Received from L1 Parameter Name Description
N313 The smaller the parameter, it is easier to judge whether the synchronization finishes, but the chance of fake f ake synchronization also increases; the larger the parameter, parameter, the higher the reliability, reliability, but it is more time consuming.
Range and Step
（1， 2， 4， 10， 20， 50， 100，200）
Default Value
50
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage >INFORMATION >INFORMA TION ON THE CONSTANTS CONSTANTS OF THE UE COUNTER AND TIMER ->Maximum Number of Successive "Out of Sync" Received from L1(N313)
Maximum Number of Successive "In Sync" Received from L1 During T313 is Activated Parameter Name Description
N315 The smaller the parameter, it is easier to judge whether the synchronization finishes, but the chance of fake f ake synchronization also increases; the larger the parameter, parameter, the higher the reliability, reliability, but it is more time consuming.
Range and Step
（1， 2， 4， 10， 20， 50， 100，200， 400， 600， 800， 1000）
Default Value
1
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constan Constants ts Infomation ->Maximum Number Number of Successive "In Sync" Received from L1 During T313 is Activated ( N315)
Waiting Time for Completion of Cell Update When Radio Link Fails and Radio Bearer(s) Associated with T314 Exist Parameter Name Description
T314 When the criteria for radio link failure are fulfilled, T314 is started if radio bearer(s) that are associated with T314 T314 exist exist or if only RRC connection exists only to the CS domain. When the Cell Update procedure has been completed, T314 is
Range and Step
stopped. （0， 2， 4， 6， 8， 12， 16， 20）s
Default Value
4s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Completion of Cell Upate When Radio Link Fails and Radio Bearer(s) Associated with T314 Exist (T314)(s)
Waiting Time for Completion of Cell Update When Radio Link Fails and Radio Bearer(s) Associated with T315 Exist Parameter Name Description
T315 When the RB is set up, the system uses T314 or T315 for for the RB. When the radio link fails and the current RB uses T315 , the system starts T315 . When the cell updating process finishes, the system stops T315. T315.
Range and Step
（0，10， 30， 60， 180， 600， 1200，1800）s
Default Value
30s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Management->Ad vanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Completion of Cell Upate When Radio Link Fails and Radio Bearer(s) Associated with T315 Exist (T315)(s)
Waiting Time for Cell Selection/Reselection After UE is out of Service in CELL_PCH/URA_PCH State Parameter Name
T316
Description
When the UE in the PCH state leaves the serving cell, the system starts the T316 timer; timer; when the UE detects the serving cell, the system stops the T316 the T316 timer. timer. When the T316 the T316 timer timer expires, if the UE is in the serving cell, it initiates the cell updating; if the T316 the T316 timer timer is not in the serving cell, it starts the T317 timer timer and switches to t o the FACH state. When the UE detects the serving cell, it starts the cell updating.
Range and Step
（0， 10， 20， 30， 40， 50， Infinity）s
Default Value
0s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->UE Timers and Constants Infomation -> W Waiting aiting Time Time for Cell Selection/Reselection After UE is out of Service in CELL_PCH/URA_PCH State(T316)(s)
Waiting Time for Cell Selection/Reselection After UE is out of Service in CELL_FACH CELL_FACH State Parameter Name
T317
Description
When the T316 timer timer expires, the system starts the T317 timer; when the UE in the t he F FACH ACH leaves the serving cell, the system starts the T317 timer timer . When the UE detects the serving cell, it stops the T317 timer. timer.
Range and Step
（0，10， 30， 60， 180， 600， 1200，1800）s
Default Value
0s
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Management->Ad vanced Parameter Manage ->UE Timers and Constants Infomation ->Wai ->Waiting ting Time Time for Cell Selection/Reselection After UE is out of Service in CELL_FACH CELL_F ACH State(T317)(s)
Mobile Country Code Parameter Name
MCC
Description
The parameter specifies the mobile country code.
Range and Step
［0，999］
Default Value
460
Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->CN NAS Configur Configuration ation Information >Mobile Country Code
Mobile Network Code Parameter Name
MNC
Description
The parameter specifies the mobile network code.
Range and Step
［0，999］
Default Value Configuration Path
View->Configuration Management->RNC NE->RNC Radio Resource Management->CN NAS Configuration Infomation>Mobile Network Code
CN Domain Supported Parameter Name
CnDomain
Description
The parameter specifies the supported CN domains.
Range and Step
0: CS Domain 1: PS Domain 2: CS+PS
Default Value
2: CS+PS
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->CN NAS Configur Configuration ation Infomation >CN Domain Supported
Timer for Periodic Location Update Parameter Name
T3212Cs
Description
The parameter specifies the interval at which the location information is reported. The smaller the parameter, parameter, it iis s easier to judge the real location.
Range and Step
（0，25.5）hours Step0.1hour
Default Value
1 hour
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage ->CN System Infomation ->Timer for Periodic Location Update(T3212)(hour)
URA Number Parameter Name
URANum
Description
The parameter specifies the number of URAs for the current cell. The system supports up to 4 URAs.
Range and Step
［1，4］
Default Value Configuration Path
N/A View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->UtranCell->UtranCell Global Information ->URA Number
URA Identity Description
URA 4 The parameter specifies the No. of the URA to which the current area belongs.
Range and Step
［0，65535］
Default Value Configuration Path
N/A View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->UtranCell->UtranCell Global Information ->URA Identity
Parameter Name
Cell Identity Parameter Name
CId
Description
The parameter specifies the ID of a cell and is used to distinguish different cells.
Range and Step
［0，65534］
Default Value Configuration Path
N/A View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->UtranCell->UtranCell Global Information ->Cell Identity
Content
UMTS System Information Broadcasting
UMTS Paging
UMTS Random Access
UMTS RRC Connection Setup and Release
Access Failed Case
Paging Flow UE
NodeB
SRNC
DRNC
Condition：PAGING originated by CN
PAGING
Condition：UE in IDLE，PCH PAGING TYPE 1 Condition：UE in DCH，FACH PAGING TYPE 2
Condition：PAGING originated by RNC , on Iur interface PAGING REQ Condition：PAGING originated by RNC Condition：UE in IDLE，PCH PAGING TYPE 1 Condition：UE in DCH，FACH PAGING TYPE 2
CN
PAGING TYPE 1
When the UE is in the Idle, or URA_PCH state, the RNC receives the paging message from the CN and then sends the paging message of PAGING TYPE 1 over the PCH channel to the UE. To improve the chance of receiving the paging p aging message by the UE, the RNC repeatedly sends the paging message of PAGING TYPE 1 to the UE.
Page Indicator
The PCH channel has a corresponding PICH physical channel. The page indicator (PI) is transmitted over the PICH channel, with each PI corresponding to a group of UEs. The following lists the formula for calculating the PI:
PI = DRX Index mod Np Where:
DRX Index = IMSI div 8192
Np = Np = the number of PIs included in a PICH frame.
Page Indicator
The UE judges whether the network is paging itself by monitoring its own PI. Each PICH frame can contain the PI of multiple UEs. The more the parameter Np Np,, the larger the transmit power of the PICH will be. Number of PIs Number of repeated in each frame bits in the PICH 18 16 36 8 72 4
Transmit power of the P PICH ICH in comparison with that of the CPICH -7 -7 -5
144
-2
2
288 bits for paging indication b0 b1
12 bits (transmission off b287 b288
b299
One radio frame (10 ms)
Paging Occasion
For saving power, the UE in the Idle or PCH state monitors the PICH channel in the Discontinuous Reception (DRX) mode. In the DRX mode, the UE monitors the PI once every DRX period. That is, each UE has its own paging occasion (PO). The UE monitors each PICH frame in the t he corresponding SFN and finds its own PI in the frame according to the calculated PI. Therefore, the RNC fills in the PI in the message transmitted over the PICH channel according to the paging k
occasion of the UE. DRX period = 2 frames
Paging Occasion
Paging Occasion = {(IMSI div N) mod (DRX cycle length div PBP)} * PBP + n * DRX cycle length + Frame Offset
Where:
N = number of SCCPCH channels carried over the PCH in a cell
DRX cycle length = 2k frame PBP = 1
n = SFN
DRX Cycle
0
4095
2K -1 PO
…… PI 0
PI 1
…… PI i-1
PI i
PI i+1
PI Np-1
DRX cycle length coefficient
When the UE is in the Idle mode, the RNC calculates K in the DRX period according to Kcs, Kps, and DRX Cycle Length Coefficient in the paging message from the CN.
For paging messages from the CS domain, K = Min(Kcs,Kps Min(Kcs,Kps))
For paging messages from the PS domain, if the CN adds DRX Cycle Length Coefficient to the paging message, K = Min (Kcs, (Kcs, Kps, DRX Cycle Length Coefficient).If the CN does not add DRX Cycle Length Coefficient to the paging message, K = Min(Kcs,Kps). Min(Kcs,Kps).
DRX cycle length coefficient
When the UE is in the PCH state, the RNC calculates K in the DRX period according to Kcs, Kps, KUtran, and DRX Cycle Length Coefficient in the paging message from the CN.
For paging messages from the CS domain, K = Min(Kcs,KUtran) For paging messages from the PS domain, if the CN adds DRX Cycle Length Coefficient to the paging message, K = Min (Kps, (Kps, KUtran, DRX Cycle Length Coefficient). If the CN does not add DRX Cycle Length Coefficient to the paging message, K = Min(Kps,KUtran). Min( Kps,KUtran).
Called Signaling Flow System Information RRC Connection Setup
NAS Connection
RRC Connection Release
PAGING TYPE 2
When the UE is in the DCH or FACH state, the UTRAN initiates the paging process and sends a paging message of PAGING TYPE 2 over the DCCH channel. The UTRAN configures paging cause in the message. After the UE in the DCH or FACH state receives the message of PAGING TYPE 2, it starts the paging reception process and reports paging cause and paging record type identifier to the upper layer.
Paging Area CN
UMTS
URA_PCH Registration
Cell
Area Cell_DCH Cell_FACH
Routing Area
Idle mode
Location Area
Different paging area for UE in different RRC state
UTRAN DRX Cycle Length Coefficient Coefficient Parameter Name
KUtran
Description
This parameter is used for the discontinuou discontinuous s reception of UE in the connection mode. This parameter is used to calculate the paging occasion, that is, a constant c onstant required in monitoring the PICH cycle. The discontinuous reception cycle is 2k
Range and Step
frames. ［3，9］
Default Value
6 View->Configuration Management->RNC NE->RNC Radio Resource Management->Advanced >RNC Radio Resource Man Management agementParameter ->UTRANManage DRX Cycle Length Coefficient
Sending Times of Paging Message Parameter Name
PagingSendTimes
Description
The system has not obtained the information on the number of retransmitted paging message when receiving no response. If the value of this parameter increases, the possibility of paging success will increase. With the t he increase of the Uu interface
Range and Step
messages, the Uu interface becomes more time consuming. c onsuming. ［1，6］
Default Value
3 View->Configuration Management->RNC NE->RNC Radio Resource Management->UtranCell->Advanced Parameter Manage ->UtranCell ->Sending Times of Paging Message
CS Domain DRX Cycle Length Coefficient Parameter Name
Kcs
Description
The parameter allows a UE in the Idle or PCH state to calculate the paging occasion so that it can monitor the PICH channel at the time specified by tthe he parameter parameter..
Range and Step
［6，9］
Default Value
6
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage -> CN System Infomation ->CS Domain DRX Cycle Length Coefficient
PS Domain DRX Cycle Length Coefficient Parameter Name
Kps
Description
The parameter allows a UE in the Idle or PCH state to calculate the paging occasion so that it can monitor the PICH channel at the time specified by tthe he parameter parameter..
Range and Step
［6，9］
Default Value
6
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->Advanced Parameter Manage -> CN System Infomation ->PS Domain DRX Cycle Length Coefficient
Number of Paging Indicators per PICH Frame Parameter Name
Np
Description
The larger the parameter, the higher the paging success rate, but the larger the transmit power of the PICH PI CH channel.
Range and Step
（18，36，72，144）
Default Value Configuration Path
18 View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->UtranCell->Advanced Parameter Manage ->PICH ->Number of Paging Indicators per PICH Frame
PICH Power Parameter Name
PichPwr
Description
This parameter indicates the PICH transmission power, power, which is an offset relative to the Primary CPICH power power..
Range and Step
［-10，5］dB step 1dB
Default Value Configuration Path
-7dB View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage -> Power Control not Related to Service -> PICH Power
Content
UMTS System Information Broadcasting
UMTS Paging
UMTS Random Access UMTS RRC Connection Setup and Release Access Failed Case
PRACH Structure
Preamble
Preamble
Preamble
4096 chips
Preamble
4096 chips
Message part
10 ms (one radio frame) Preamble
Preamble
Message part
20 ms (two radio frames)
Preamble Part
The preamble part of PRACH is 4096 chips long. It is obtained by repeating the 16-chip 16- chip signature for 256 times and then processed with RPACH preamble scrambling.
Message Part Data Ndata bits
Data Pilot N pilot bits
Control
TFCI NTFCI bits
Tslot = 2560 chips, 10*2 k bits (k=0..3)
S lo t # 0
S lo t # 1
S lo t # i
S lo t # 1 4
Message part radio frame T RACH = 10 ms
k=0, 1, 2 and 3 corresponds respectively to the spectrum spreading factors adopted by the message part: SF=256, 128, 64 and 32.
Channelized code of PRACH message part
The spectrum spreading code used by the control part of PRACH is c c = Cch,256,m. where m = 16×s + 15.
The spectrum spreading code used by the data part of PRACH is cd =Cch,SF,m. where SF=256, 128, 64, 32 are the spectrum spreading
factor of the data part, m = SF×s/16. s(0 s 15) is the serial number of the signature used by the PRACH preamble part among all 16 PRACH preamble signatures. Number of bits carried in PRACH message vs spectrum spreading factor: Slot Channel Bit Format #i Rate (kbps) 0 15 1 30 2 60 3 120
Channel Symbol Rate (ksps) 15 30 60 120
SF 256 128 64 32
Bits/ Frame 150 300 600 1200
Bits/ Slot 10 20 40 80
Ndata 10 20 40 80
Random Access Process of Physical Layer
Select an available access slot
Select a signature
Set the preamble retransmission counter
The UE calculates the initial transmit power of preamble
If the UE fails to receive, in the DL access slot corresponding to the slot that sends the UL access preamble, the positive or negative response (AI = +1 nor – nor –1) 1) corresponding to the selected signature on AICH, Increase the transmit p power ower of random access preamble by one PRStep.. PRStep
If the UE receives, in the DL access slot corresponding to the slot that sends the UL access preamble, the positive response corresponding to the selected signature on AICH, then the UE sends the message part of random access.
RACH access slot set
PRACH has totally 15 slots of 20ms and the slots belongs to two access slot sets.
Access slot set 1 includes: slot 0~7 starting from p-a chips before the DL P-CCPCH frame of SFN mod 2=0.
Access slot set 2 includes: slot 8~14 starting from p-a – –2560 2560 chips before the DL P-CCPCH frame of SFN mod 2=1.
AICH access access slots p-a
#0 PRACH access slots
SFN mod 2 = 0 #0
#1
#1
#2
#3
#2
#4
#3
#5
Access slot set set 1
10 ms
#4
#6
SFN mod 2 = 1 #5
#7
#6
#8
#7
#9
#8
#9
#10
#11
#10
#11
#12
Access slot set set 2
#13
#12
#14
#13
#14
10 ms
RACH Sub-channe Sub-channell
RACH sub-channel defines a subset of all UL access slots.
Mapping relation between available UL access slot and RACH sub-channel: SFN modulo 8 of corresponding P-CCPCH frame 0 1 2 3 4 5 6 7
0
1
2
Sub-channel number 3 4 5 6 7 8
0 1 2 3 12 13 14 0 9 10 11 12 6 7 8 9 3 4 5 6
4
5
6
1 2 3 13 14 0 10 11 12 7 8 9
9
10 11
9 6
10 11 7 8 4 5
7 4
8 5
1 2 3 13 14 0 1 2 10 11 12 13 14
PRACH/AICH timing relation
The AICH frame is 20ms long and divided into 15 slots, each slot with 5120 chips. One access slot Acq. Ind.
AICH access slots RX at UE
p-a
PRACH access
Preamble
Preamble
Message part
slots TX at UE
p-p
p-m
PRACH Preamble Scrambling Code Parameter Name
PreamScraCode
Description
This parameter indicates the preamble scrambling number that this PRACH can use. The scrambling code that can be used for PRACH in each cell c ell relates to the DL primary scrambling code of the cell. In addition, there t here are at most sixteen preamble scrambling codes available. This parameter can be used to distinguish the PRACHs.
Range and Step
［0，15］
Default Value
0
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->External UTRAN Cell-> External UTRAN Cell XXX-> Advanced Parameter Manager->PRACH> PRACH Preamble Scrambling Code
Available Signature Parameter Name
Signature
Description
This parameter indicates all effective signatures when the PRACH is used. 16 bit represents 16 signatures; the bit which equals 1 means the corresponding signature is valid. Each signature corresponds one by one to the channelization code number of PRACH whose SF is 16.
Range and Step
Bit0: sig0 .. Bit15: sig15, Bit=1 means the corresponding signature is valid.
Default Value
Each bit is 1
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->External UTRAN Cell-> External UTRAN Cell XXX-> Advanced Parameter Manager->PRACH> Available Signature
PRACH Available SF Parameter Name
AvailableSF
Description
This parameter indicates the minimum effective spreading factor that this PRACH can use (limiting the maximum rate that the PRACH can transmit). The greater the minimum effective spreading factor is, the lower the maximum rate becomes at which the PRACH can transmit.
Range and Step
（32，64，128，256）
Default Value
64
Configuration
View->Configuration Management->RNC NE->RNC Radio
Path
Resource Management-> UTRAN Cell-> Advanced Parameter Manager->PRACH-> PRACH Available SF
PRACH Preamble Power Ramp Step Parameter Name
PRStep
Description
This parameter indicates the power ramp step used by the UE when it does not receive any responses from AICH after sending a preamble. This parameter is used to be added to the previous power, power, and then the next preamble is sent at this new power.
Range and Step
［1，8］dB step 1dB
Default Value
1dB
Configuration
View->Configuration Management->RNC NE->RNC Radio
Path
Resource Management-> UTRAN Cell-> Advanced Parameter Manager->PRACH-> PRACH Preamble Power Ramp Step(dB)
Maximum Number of Preamble Being Transmitted Parameter Name
MaxPreamRetrans
Description
This parameter indicates the maximum number that the access preamble can be sent before L1 receives ACK or NACK.
Range and Step Default Value Configuration Path
［ ， ］ 1 64 40
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management-> UTRAN Cell-> Advanced Parameter Manager->PRACH-> Maximum Number of Preamble Being Transmitted
Power Offset between PRACH Control Part and PRACH Data Part Parameter Name
POPpm
Description
This parameter indicates the power offset between control part of the PRACH message part and the last preamble. It should be configured for each TFC.
Range and Step Default Value Configuration Path
［ ］ -5,10 dB step 1dB 2
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management-> Advanced Parameter Manager>Transmission Format Composition Set of PRACH-> Power Offset between PRACH Control Part and PRACH Data Part(dB)
PRACH Available SubChannel Number Parameter Name
AvailSubChanNum
Description
This parameter indicates the available effective sub-channe sub-channell number of this PRACH. The sub-channel number actually defines the available time slot for the PRACH. P RACH. The bit indicates whether this sub-channel number is valid or not. Each sub-channel number can correspond to several access slots. For several PRACHs in the same cell, their sub-channel numbers must be different from each other other..
Range and Step
bit0: subch0 .. bit11: subch11 Bit=1 means the corresponding sub channel is valid.
Default Value
Each bit is 1
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management-> UTRAN Cell-> UTRAN Cell XXX->
Advanced Parameter Manager >PRACH > PRACH Available Available SubChannel Number
Maximum Allowed Allowed UL TX Power of RACH Parameter Name
MaxRACHTxPwr
Description
This parameter indicates the maximum allowed UL transmission power of RACH. If the parameter value is increased, the maximum allowed UL transmission power of RACH increases. If the parameter value is decreased, the maximum allowed UL transmission power of RACH decreases.
Range and Step
［-50，33］dBm
Default Value
24dBm
Configuration
View->Configuration Management->RNC NE->RNC Radio
Path
Resource Management-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager->PRACH-> Manager->PRACH-> Maximum Allow Allowed ed UL TX Power of RACH(dBm)
Maximum Number of Preamble Ramping Cycles Parameter Name
Mmax
Description
This parameter indicates the maximum times for re-sending attempts on MAC layer layer.. When the t he physical layer returns NACK (unacknowledged) or NO ACK (Node B does not response), adds the attempt times, M, by 1. 1. When M is over Mmax, the MAC layer stops the access process. process. When the parameter value is increased, the MAC layer makes more sending attempts. When the parameter value is decreased, the MAC layer makes less sending attempts.
Range and Step
［1，32］
Default Value
6
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager->PRACH-> Manager->PRACH-> Maximum Number of Preamble Ramping Cycles
Detected Preamble Threshold Parameter Name
PreamThs
Description
This parameter indicates the preamble judgment threshold when Node B detects preambles. To make the access preamble of the PPRACH transmission be detected by Node B, the proportion of the received preamble power in the preamble cycle and the interference level should be larger than this parameter. parameter.
Range and Step
［-36.0，0.0］ dB step 0.5dB
Default Value
-24dB
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager->PRACH-> Manager->PRACH-> Detected Preamble Threshold(dB)
Content
UMTS System Information Broadcasting
UMTS Paging
UMTS Random Access UMTS RRC Connection Setup and Release Access Failed Case
RRC Connection Setup
A dedicated channel channel
A common channel channel UE
UTRAN RRC CONNECTION REQUEST
RRC CONNECTION SETUP
RRC CONNECTION SETUP COMPLETE
The signaling flow in signal trace tool
RRC Connection Setup RRC Connection Setup Request
RNC
RNC decides decides on what what kind of channel the RRC connection will be established according to the setting of the OMCR parameter InitRrcOnDch
InitRrcOnDch = 0
InitR tRrrcOnDch = 1
In IniitRrcOnDch = 3
InitR tRrrcOnDch = 4
InitRrcOnDch = 2
DCH mandatory and common signaling
DCH mandatory and High-speed signaling
Not mandatory and use common signaling for DCH state
Not mandatory and use highspeed signaling for DCH state
FACH mandatory
RRC Connection Setup Cause = to set up services “
”
DCH is used to setup RRC Connection
Common Channel is used to setup RRC Connection
Establishing a RRC Connection over a Dedicated Transport channel
When receiving the RRC CONNECTION REQUEST message from a UE, the RNC specifies the channel over which the RRC connection is to be established according to the parameter InitRrcOnDch InitRrcOnDch..
If the parameter InitRrcOnDch is set to 0 (Forced to DCH and Using Normal Speed Signaling) or 1 (Forced to DCH and Using 13.6Kbps signaling), signaling), or 5(Forced to DCH and using 27.2Kbps), the RNC establishes the RRC connection over the DCH channel. If the parameter InitRrcOnDch InitRrcOnDch is is set to 3 (Not Forced, Using 3.4Kbps Signaling on Cell-DCH State) or 4 (Not Forced, Using 13.6kbps Signaling on Cell-DCH State), or 6(Not Forced, Using 27.2Kbps Signaling on Cell-DCH State), the RNC selects to establish the RRC connection over the DCH according to the
establishment cause in the RRC CONNECTION REQUEST message.
Establishing a RRC Connection over a Common Transport channel
When receiving the RRC CONNECTION REQUEST message from a UE, the RNC specifies the channel over which the RRC connection is to be established according to the parameter InitRrcOnDch InitRrcOnDch..
If the parameter InitRrcOnDch is set to 2 (Forced to FACH), the RNC establishes the RRC connection over the FACH channel. If the parameter InitRrcOnDch InitRrcOnDch is is set to 3 , 4, or 6, the RNC establishes the RRC connection according to the establishment cause. If there is only a signaling process, instead of setting up services(for example, the value of establishment cause is registration ), RNC will select common channel to bear signaling.
Wireless Link Setup Failure
If the radio link setup fails, the RNC sends the RRC CONNECTION REJECT message to the UE and fills in Wait Time in the message. The parameter Wait Time specifies the duration (from the reception of the RRC CONNECTION REJECT message to the time of sending access request) during which the UE has to wait.
Failure to Receive RRC Connection Setup Response From UE
If RNC havn’t received RRC CONNECTION SETUP COMPLETE for waiting 5 seconds from the first transmitting of RRC CONNECTION SETUP, the RRC connection setup fails. The UE is still in idle mode.
Releasing the RRC Connection
The connection carrying services data or NAS signaling is released normally.
The Node B detects radio link failure.
The RNC monitors the RLC connection failure.
The UE in the DCH or FACH state sends CELL UPDATE message. The value of AM_RLC error indication is true.
The UE in the FACH state sends the CELL UPDATE message to the RNC. The cause is Radio link failure or RLC unrecoverable error. UE(DCH)
RNC
RRC Connection Release (SRB1)
UE(FACH)
RNC
RRC Connection Release (SRB2/CCCH) RRC Connection Release
RRC Connection Release Complete
Complete (CCCH)
RRC connection release flow UE
T ar getB Node
S our ce Node B
DR r iNfCt
Sour ce RNC
Condition RRC connection release on DCH
RRC
RRC CONNECTI ON RELEASE [ DCCH（ UM RLC（ ]
RRC
RRC
RRC CONNECTI ON RELEASE COMPLETE [ DCCH（ UM RLC / AM RLC（ ]
RRC
RL Del et e
Condition RRC connection release on CCCH
RRC
RRC CONNECTI ON RELEASE [ CCCH（ UM RLC（ ]
RRC
Maximum Number of Retransmissions of the RRC CONNECTION RELEASE Message Parameter Name
NReTran
Description
The parameter specifies the number of the RRC CONNECTION RELEASE messages retransmitted by the RNC after the UE does not return the RRC CONNECTION RELEASE COMPLETE message. If the value of this parameter decreases, the possibility of process failed will increase.
Range and Step
［1，10］
Default Value
3
Configuration Path
View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage >RNC Radio Resource Manag Management ement ->Maximum Nu Number mber of Retransmissions of the RRC CONNECTION RELEASE Message
Wait Time for RRC Connection Reestablishment Parameter Name
Twait
Description
The smaller the parameter, it is easier to trigger access request flow, flow, the larger the chance of second failure.
Range and Step
［0，15］s
Default Value Configuration Path
5s View->Configuration View>Configuration Management->RNC NE->RNC Radio Resource Management->Advanced Parameter Manage >RNC Radio Resource Management ->Wa ->Wait it T Time ime for RRC Connection Reestablishment(s)
Number of FDD UMTS Frequency Range Range Parameter Name
FDDFreqRngNum
Description
This parameter indicates the number of UTRAN FDD frequency range controlled by the local PLMN. When UE comes back to idle mode from RRC connected mode, UE selects one cell to reside. UTRAN UT RAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible frequency range in UTRAN cells. This parameter helps UE to speed up the process of cell searching.
Range and Step
［0，32］
Default Value
2
Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->RPLMN Range Information -> Number of FDD UMTS Frequency Range
Number of GSM BA Range Parameter Name
GsmBARangeNum
Description
This parameter indicates the number of GSM BCCH distribution tables. When UTRAN network and BSS network belong to the same PLMN at the t he same time and UE has transferred from RRC connected mode to Idle mode, UE will selects one cell to reside. UTRAN UT RAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible BCCH frequency range of neighboring GSM cells of the BSS network. This parameter helps UE to speed s peed up the process of cell searching.
Range and Step
［0，32］ 3
Default Value Configuration Path
View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->RPLMN Range Information -> Number of GSM BA Range
GSM Lower Range Parameter Name
GsmLRange 32
Description
This parameter indicates the frequency lower range of a specific GSM BCCH distribution table that the local PLMN controls. When UTRAN network and BSS network belong to the same PLMN at the same time and UE has transferred from RRC connected mode to Idle mode, UE will selects one cell to reside. UTRAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible BCCH frequency range of neighboring GSM cells of the t he BSS network. This parameter helps UE to speed up the process of
Range and Step
cell searching. [0， 1023]
Default Value
N/A View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->RPLMN Range Information ->GSM
Lower Range
GSM Upper Range Parameter Name
GsmURange 32
Description
This parameter indicates the frequency upper range of a specific GSM BCCH distribution table that the local PLMN controls. When UTRAN network and BSS network belong to the same PLMN at the same time and UE has transferred from RRC connected mode to Idle mode, UE will selects one cell to reside. UTRAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible BCCH frequency range of neighboring GSM cells of the t he BSS network. This parameter helps UE to speed up the process of
Range and Step
cell searching. [0， 1023]
Default Value
N/A View->Configuration Management->RNC NE->RNC Radio View->Configuration Resource Management->RPLMN Range Information ->GSM
Upper Range
UARFCN (Nlow) 8
Parameter Name
Luarfcn
Description
This parameter indicates the frequency lower range of a specific UTRAN FDD frequency that the local PLMN controls. When UE state is transferred from RRC connected mode to idle mode, UE selects one cell to reside. UTRAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible transmission frequency range of the UTRAN cells. This parameter helps UE to speed up the process of cell searching.
Range and Step
Band I: [10562, 10838] Band II: [9662, 9938]
Default Value
N/A View->Configuration Management->RNC NE->RNC Radio Resource Management->RPLMN Range Information >UARFCN (Nlow)
UARFCN(Nupper) Parameter Name
Uuarfcn 8
Description
This parameter indicates the frequency upper range of a specific UTRAN FDD that the local PLMN controls. When UE state is transferred from RRC connected mode to idle mode, UE selects one cell to t o reside. UTRAN contains this parameter in the message of RRC CONNECTION RELEASE, indicating the possible transmission frequency range of the UTRAN UTR AN cells. This parameter helps UE to speed up the process of cell searching.
Range and Step
Band I: [10562, 10838] Band II: [9662, 9938]
Default Value
N/A View->Configuration Management->RNC NE->RNC Radio Resource Management->RPLMN Range Information >UARFCN(Nupper)
Type of Transport Channel for Initial RRC Connection Setup Parameter Name
InitRrcOnDch
Description
This parameter indicates the type of transport channel and signaling rate for initial RRC connection setup.
Range and Step
0:forcedly establish the RRC connection over the DCH channel and use the common signaling 1: Forcedly establish the RRC connection over the DCH channel and use the high speed signaling 2: Forcedly establish the RRC connection over the FACH channel and use the high speed signaling 3:Establish the RRC connection over the DCH channel in a non-forced manner and use the common signaling 4: Establish the RRC connection over the DCH channel in a non-forced manner and use the high speed signaling.
Default Value
1 View->Configuration View>Configuration Management->RNC NE->RNC Radio
Resource Management->Basic Infomation ->Ty ->Type pe of Transport Tran sport Channel for Initial RRC Connection Setup
Content
UMTS System Information Broadcasting
UMTS Paging
UMTS Random Access UMTS RRC Connection Setup and Release
Access Failed Case
Description
Customer complained that it was difficult to access the network in office, and it was too long to wait.
Analysis
The drive test shows that the receiving level of UE is normal. Besides, there is no alarm related to hardware.
The Performance Management System(PMS)) software of NodeB System(PMS shows the statistics of accessing. A large amount of rejection of access is found, which occupied the demodulation resource, causing the long time to wait for a call connection.
Analysis
Preamble_Initial_Power = Primary CPICH DL TX power – power – CPICH_RSCP CPICH_RSCP + UL interference + Constant Value
“Primary CPICH DL TX power – – CPICH_RSCP” is the Pathloss of downlink. UE
UTRAN
CPICH Preamble ………………..Preamble ………………..Preamble AICH Message of
PRACH
Analysis
Use the signaling trace tools of OMCR, RNC didn’t receive the “RRC Connection Request” message. Use the BMC TRACE, find “Rach CRC Error”.So, we make a conclusion that the Preamble Threshold is too big which result in the message transmit power is very low, and NodeB cannot receive the message.
Solution
Solution
Chan Ch ange ge th the e Pream Preambl ble e Thres Thresho hold ld:-2 :-24d 4dB B -21d -21dB B
Cons Co nsta tant nt Va Valu lue: e:-2 -21d 1dB B -18d -18dB B
Result
Test again, make a call 120 times, all the calls are successful.
Access Failed Failed Case
-21dB -21 -18dB
View more...
Comments
