UMTS Technique Summary-Signalling Analysis

UMTS Technique Summary-Signaling Analysis

1 In Which Message TMSI may be foundIn RRC Connection Request Message sent by UE The TMSI is 10 40 DB B1

2 In Which Message IMSI may be foundIn RANAP Common ID sent by CN IMSI 32009309000070F6His interpreted as follows 230039900000076Mapping relation 32 00 93 09 00 00 70 F6 23 00 39 90 00 00 07 6F F is not needed

3 In Which Message Propagation delay may be found

1

4 What difference exists when RRC is set up on CCCH or DCCH

DCH and FACH Signaling difference

1 FACH has no signaling from Radio Link Setup Request to ALCAP Iub data transport Bearer Setup

2 RRC setup complete may be on RACH or DCCH(DCH 34k or DCH136K)

3 CCCH or FACH has no power control and DCCH has power control(channel equality may be better than DCCH)

2

5 From which command we may know which RRC reasons are set up CCCH or DCCH

SET URRCESTCAUSERRCCAUSE=ORIGCONVCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGSTREAMCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGINTERCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGBKGCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGSUBSTRAFFCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMCONVCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMSTREAMCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMINTERCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMBKGCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=EMERGCALLEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFF

3

SET URRCESTCAUSERRCCAUSE=INTERRATCELLRESELEST SIGCHTYPE=DCH_34K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=INTERRATCELLCHGORDEREST SIGCHTYPE=DCH_34K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=REGISTEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=DETACHEST SIGCHTYPE=FACH INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGHIGHPRIORSIGEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=ORIGLOWPRIORSIGEST SIGCHTYPE=FACH INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=CALLREEST SIGCHTYPE=DCH_34K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMHIGHPRIORSIGEST SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMLOWPRIORSIGEST SIGCHTYPE=FACH INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=TERMCAUSEUNKNOWN SIGCHTYPE=DCH_136K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=MBMSCALLEST SIGCHTYPE=DCH_34K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFFSET URRCESTCAUSERRCCAUSE=DEFAULTEST SIGCHTYPE=DCH_34K_SIGNALLING INTRAMEASCTRL=SUPPORT EFACHSWITCH=OFF

6 Which procedure has something with different RRC reasons

Table L113GPP TS 24008 Mapping of CS NAS procedure to establishment cause

CS NAS procedure RRC Establishment cause (according 3GPP TS 25331)Originating CS speech call Originating Conversational CallOriginating CS data call Originating Conversational CallCS Emergency call Emergency callCall re-establishment Call re-establishmentLocation update RegistrationIMSI Detach DetachMO SMS via CS domain Originating Low Priority SignallingSupplementary Services Originating High Priority SignallingAnswer to circuit switched paging Set equal to the value of the paging cause used in the reception of paging in the

RRC layerSS part of Location services Originating High Priority Signalling

4

When GMM requests the establishment of a PS signalling connection the RRC establishmnt cause used by the MS shall be selected according to the PS NAS procedure as specified in Table L12

Table L123GPP TS 24008 Mapping of PS NAS procedure to establishment cause

PS NAS procedure RRC Establishment cause (according 3GPP TS 25331)GPRS Attach RegistrationRouting Area Update ndash for the case of lsquoDirected Signalling Connection Re-Establishment (see chapter 4725)

Call Re-Establishment

Routing area Update ndash all cases other than lsquoDirected Signalling Connection Re-Establishment

Registration

GPRS Detach DetachRequest to re-establish RABs

Either lsquoOriginating Conversational Callrsquo or lsquoOriginating Streaming Callrsquo or lsquoOriginating Interactive Callrsquo or lsquoOriginating Background Call lsquo ndash depending on the Traffic Class in QoS of the most demanding RAB (see Note 1)

Request to establish a PS signalling connection for MBMS

MBMS reception or MBMS p-t-p RB request

Activate PDP Context Either lsquoOriginating Conversational Callrsquo or lsquoOriginating Streaming Callrsquo or lsquoOriginating Interactive Callrsquo or lsquoOriginating Background Call lsquo ndash depending on the Traffic Class in QoS of the most demanding RAB (see Note 1) ndashIf Traffic Class in QoS is not lsquoConversational Classrsquo or lsquoStreaming Classrsquo or lsquoInteractive Classrsquo or lsquoBackground Classrsquo but is lsquoSubscribed Traffic Classrsquo then lsquoOriginating Subscribed traffic Callrsquo shall be used

Modify PDP Context Originating High Priority SignallingDeactivate PDP Context Originating High Priority SignallingMO SMS via PS domain Originating Low Priority SignallingSS part of Location services

Originating High Priority Signalling

Answer to packet paging Set equal to the value of the paging cause used in the reception of paging in the RRC layer

NOTE 1 For classification of most demanding Traffic Class the following ranking order applies Conversational followed by Streaming followed by Interactive followed by Background where Conversational is the most demanding Traffic class in terms of being delay sensitive In chosing the most demanding Traffic Class all already active PDP Context together with the PDP Context to be activated shall be considered

NOTE The RRC establishment cause may be used by the network to prioritise the connection establishment request from the MS at high load situations in the network

7 From which command we may know UE status transition to FACH or PCH has happenedFrom RB RECFG message sent by RNC you may know this

5

8 In Which Message RRC setup reason may be foundIn RRC Connection Request Message sent by UE

9 From Which timer we may know how many times RRC setup may be resent and resent timerSET UCONNMODETIMERT302=D2000 N302=6 T304=D2000 N304=3 T305=D30 T307=D30 T308=D40 N308=1 T309=8 T312=6 N312=D1 T313=3 N313=D50 T314=D0 T315=D0 N315=D1 T316=D30 T381=D600 N381=D1

10 In Which Message we may know Iu User plane address allocated by CNFrom RABAP Assignment Response Message 00001010000101010111011000110010B(0A 15 76 32) is interpreted as follows 102111850

6

11 In RRC Connection Request how much is real value of IE EcIo

EcIorsquos real value is mapped into as follows=( 44-49)2=-25dB

In fact if EcIo in RRC Connection Request is x it should be (x-49)2

12 Do you know which signaling includes ARP information ARP information is included in RAB Assignment Request Message

7

13 For power CAC whatrsquos difference between RRC phase and RAB phase

In RRC Phase UlOlcTrigThd and DlOlcTrigThd are used In RAB Phase UlNonCtrlThdForHo UlNonCtrlThdForAMR UlNonCtrlThdForNonAMR or UlNonCtrlThdForOther DlNonCtrlThdForHo DlNonCtrlThdForAMR DlNonCtrlThdForNonAMR or DlNonCtrlThdForOther are used

14 Which LDR actions exist aimed at different resources

8

There are several attentions described in the above table

1048698 The Inter-RAT Handover in CS Domain action can be performed for the HSUPA services that are in the non-scheduling mode 1048698 The Inter-RAT Handover in CS Domain action can be performed for the HSDPA services only when the HsdpaCMPermissionInd parameter is set to TRUE

9

1048698 If the downlink power-based admission uses the ENU algorithm the basic congestion can also be caused by the ENU In this situation LDR actions do not involve AMR rate reduction or MBMS power reduction as indicated by the symbol in the preceding table 1048698 In the same environment different rates have different downlink transmit powers The higher the rate the greater the downlink transmit power Therefore the load can be reduced by bandwidth reconfiguration 1048698 For HSUPA services the CE consumption which is calculated on the basis of the Maximum Bit Rate (MBR) can be reduced through rate downsizing Therefore the BE service rate downsizing for HSUPA is applicable only for reducing CE resource congestion

15 System Information1

It includes NAS Information and UE Timers and constants idle mode and connected mode

10

For timers and constant

Idle T300N300T312N312

ConnectedT301N301T302N302T305T307T308T309T310N310T311T312N312T313N313T314T315N315T316T317


It includes URA information

11

17 System Information3The system information block type 3 contains parameters for cell selection and re-selection

It includes main IE as follows Cell identityCell selection and reselection quality measure (CPICH EcN0CPICH RSCP))Sintrasearch Sintersearch SsearchRATSsearchHCS SHCSRAT SlimitSearchRAT Qqualmin Qrxlevmin DeltaQrxlevmin Qqualmin-offset Qrxlevmin-offset Qhyst1s Qhyst2s Treselections Maximum allowed UL TX power Cell Access Restriction Cell barring representationDSAC Domain Specific AccessRestriction Parameters Intra-frequency reportingquantity SIB3 and so on


The system information block type 4 contains parameters for cell selection and re-selection to be used in connected mode


The system information block type 5 contains parameters for the configuration of the common physical channels in thecell System information block type 5bis uses the same structure as System information block type 5 Systeminformation block type 5bis is sent instead of system information block type 5 in cells that use Band IV or Band IX or Band X

12

It includes Primary Pilot PowerPICH Power offset AICH Power offset PRACH system information list Secondary CCPCH system information


The system information block type 7 contains the fast changing parameters UL interference and Dynamic persistence level


The system information block type 11 contains measurement control information to be used in the cell

13

It includes Intra-frequency cells Inter-frequency cell info list Inter-RAT cell info list


The System Information Block type 18 contains PLMN identities of neighbouring cells to be considered in idle mode aswell as in connected mode

14


4 What difference exists when RRC is set up on CCCH or DCCH

DCH and FACH Signaling difference

1 FACH has no signaling from Radio Link Setup Request to ALCAP Iub data transport Bearer Setup

2 RRC setup complete may be on RACH or DCCH(DCH 34k or DCH136K)

3 CCCH or FACH has no power control and DCCH has power control(channel equality may be better than DCCH)

2



3






4






Registration












5




6





7




8



9




10


Idle T300N300T312N312




11







12






13




14




3






4






Registration












5




6





7




8



9




10


Idle T300N300T312N312




11







12






13




14







4






Registration












5




6





7




8



9




10


Idle T300N300T312N312




11







12






13




14







Registration












5




6





7




8



9




10


Idle T300N300T312N312




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12






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14





6





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9




10


Idle T300N300T312N312




11







12






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7




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9




10


Idle T300N300T312N312




11







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8



9




10


Idle T300N300T312N312




11







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13




14




9




10


Idle T300N300T312N312




11







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10


Idle T300N300T312N312




11







12






13




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Idle T300N300T312N312




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UMTS Technique Summary-Signalling Analysis

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