Download - 118939337 Isho Training
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1 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO Training
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2 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Contents
Introduction
Compressed mode case
ISHO Parameters optimisation
ISHO Signalling Steps
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3 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Measurement triggering in WCDMA
All together five different quality and/or coverage based triggers specified:
GSM handover caused by CPICH Ec/No (event 1F) GSM handover caused by CPICH RSCP (event 1F) GSM handover caused by Ue Tx power (event 6A) GSM handover caused by DL DPCH power (NodeB radio link
measurement) GSM handover caused by UL DCH quality (UL outer loop power
control)
If two or more of the above indicated quality and/or coverage causes are present simultaneously, the handover cause which has triggered first has the highest priority.
RNC shall determine priorities between inter-frequency and inter-RAT handovers on the basis of Service Handover IE received from the CN.
Should be handed over to GSM: ISHO > IFHO Should not be handed over to GSM: ISHO < IFHO Shall not be handed over to GSM: ISHO < IFHO
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4 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
WCDMA compressed mode methods
TGPL1 = 4 frames (Transmission Gap Pattern Length)
TGPL2 = 0 TGPL2 identical with TGPL1, in RAN1.5
TGL = 7 transmission gap lenght in slots, in RAN1.5
TGD = 0 gap distance, in RAN1.5 => only one gap per TGP
Transm issionTransm ission gap 2
gap 2
TGSN TGSN
TGL2 TGL2
TG pattern 2#TGPRC
gap 1Transm ission Transm ission
gap 1
TGD TGD
TGPL1 TGPL2
TG pattern 1 TG pattern 2
TGL1 TGL1
#1 #2 #3 #4 #5TG pattern 1TG pattern 1 TG pattern 2 TG pattern 1 TG pattern 2
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5 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
WCDMA compressed mode methods Higher Layer Scheduling (HLS)
Used both in UL and DL In RAN1.5 only for NRT PS data Doesnt cause extra load Reduces DCH user data changing the TFCSs HLS and HLS data rates possible
Puncturing DL only Implemented in RAN1.5 but no plans to test
Halving the Spreading Factor (SF/2) Used both in UL and DL Doubles temporarily the physical channel data rate Done if new channelisation code is available from the code tree in DL OR
alternative scrambling codes are used (parameter: AltScramblingCodeCM) Limited CM strategy in RAN1.5:
AMR 12.2 kbit/s TGL = 7 slots PhysicalChannelReconfiguration used in RRC
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6 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
WCDMA compressed mode methodsPuncturing (Double Frame):
Higher layer scheduling (Double Frame):
Halving the spreading factor (Single Frame):
CM on CM offGaps
CM on
CM on
CM off
CMoff
Punctured frames
Normal frames
Gaps
New TFCS constructed TFCS original
SF/2 Original SF
Gaps
t
. .
10 ms
DTX
P
Example of compressed mode methods in downlink
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7 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
WCDMA compressed mode methodsHigher layer scheduling (Double Frame):
Halving the spreading factor (Single Frame):
CM on
CM on
CM off
CMoff
Gaps
New TFCS constructed TFCS original
SF/2 Original SF
Gaps
t
P
Example of compressed mode methods in uplink
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8 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Contents
Introduction
Compressed mode case
ISHO Parameters Optimisation
ISHO Signalling Steps
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9 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Compressed mode parameters
Compressed mode parameters for IS-HO (RSSI& BSIC measurements):
TGSN: 4 slots
TGL1(2)= 7 slots
TGPL1(2)= 4 frames
Tgd= undefined (one gap per TGP)
TGPL1(TGPL2)
1 Frame 1 Frame 1 Frame 1 Frame
7 slots gap
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10 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Measurement description
Measurements uner Kutoja-2 cell (sc=201)
Two routes: Route 1 (LOS) and Route 2 (NLOS) were followed. Average speed= 40kph
For each route: three measurements without CM and three measurements with CM were done.
IS-HO triggers were set to high thresholds to keep the PC inside the dynamic range.
Route 1
Route 2
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11 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UL Power control during compressed mode
UE Tx power in Compressed mode
BLER was kept to BLER target (1%)
TGPL format as expected
Ue Tx Power ([dBm])
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12 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Average SIR variation with compressed mode (CM)
4.293.44
4.95 4.59
-1.50
0.50
2.50
4.50
6.50
Route1 Route2
Route
A
v
e
r
a
g
e
S
I
R
[
d
B
]
Without CMWith CM
UL Power control during compressed mode
UL SIR Average SIR obtained in each route during compressed mode:
-Route1 (LOS) : SIR rises 0.7 dB compared to NO CM-Route2 (NLOS): SIR rises 1.2 dB compared to NO CM
Average SIR variation during CM is bigger in NLOS
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13 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UL Power control during compressed mode
UE Tx power The measurements were done using one link only (no SHO)
Average speed was 30 Kmph ISHO parameters
CPICH EcNo threshold = -7dBCM duration time was forced to last to 20 seconds approx.
Measurement descriptionThree measurements were done without CM (ISHO
triggers disactivated)Three measurements were done with CM.
Sapo
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14 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UL Power control during compressed mode
UE Tx power The UE Tx power during CM was compared with the UE Tx power with CM disabled in 4 different zones along the route (see below figure)
In average, the UE transmits 1.3 dBhigher in compressed mode than with CM disabled.
Note: This result is for single link CM
-10.5
4.1
-17.1
-3.3
3.0
-13.6
-3.0
-11.0
-20
-15
-10
-5
0
5
10
1 2 3 4UE Tx pow er in CM
UE Tx powerwithout CM
Average UE Tx power with CM and without CM
with CM
without CM
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15 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UE Tx Power in CM+SHO
A special configuration was used to create the scenario for simultaneous CM and SHO processes.
ISHO parametersCPICH EcNo threshold = -5dBCM duration time was forced to last 20 seconds approx.
SHO parametersAddition window= 4 dBDeletion window= 9 dBDeletion time= 5 seconds
Telekara
sc=105
sc=106
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16 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UE Tx Power in CM+SHO
Active set size=2 Active set size=1
Start of CMEnd of CM
SHO (CM disabled) SHO+CM
Active set size=2 Active set size=1
Start of SHOEnd of SHO
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17 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
UE Tx Power in CM+SHO: Results
The UE Tx power during CM+SHO was compared with the UE Tx power with SHO only.
The UE Tx power was averaged over 100 meters
In average, the UE transmits 0.6 dBhigher in SHO only than in SHO+CM !?
-17.1
-16.51
-17.2
-17
-16.8
-16.6
-16.4
-16.21
CMNo CM
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18 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Downlink Power Control during compressed mode
DL DCH Threshold=-8 dB
First CM starts at DL DCH power=27.5
dBm approx
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19 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Inter-System handover delay
Following data were obtained in Espoo NTN network and OPI network (BSIC delay only):
Activation time (from event-trigger to measurement control for RSSI measurements): 0.94s
RSSI delay: 1.13 s
BSIC delay:
Espoo: [6 3 1.5 1.14 1 0.9 1.1] seconds: =>average 2.09 s
OPI network : [2.2 1.73 1.69 2.68] seconds=> average=2 s
Handover message: 200 ms
Total ISHO delay (in the 3G side): = 4.3 s
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20 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Contents
Introduction
Compressed mode case
ISHO Parameters Optimisation
ISHO Signalling Steps
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21 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Decision Algorithm
UE Tx Power (Event 6A)Threshold:GsmUETxPwrThrXXL3 filter:GsmUETxPwrFilterCoeffHysteresis margin:GsmUETxPwrTimeHystData rate threshold
HHOMAxAllowedBitrateUL
UL QualityTimer:ULQualDetRepThresholdData rate threshold
HHOMAxAllowedBitrateUL
DL DPCH powerThreshold:
GsmDLTxPwrThrXXData rate threshold
HHOMAxAllowedBitrateDL
(XX=AMR,CS,NrtPS,RtPS)
CPICH RSCP (Event 1F)Thresholds:HHoRscpThreshold HHoRscpCancelL3 filter: HHoRscpFilterCoefficientTimers:HHoRscpTimeHysteresisHHoRscpCancelTime
CPICH Ec/Io (Event 1F)Thresholds:HHoEcNoThresholdHHoEcNoCancelL3 filter:EcNofilterCoefficientTimers:HHoEcNoTimeHysteresisHHoEcNoCancelTime
AdjgTxPwrMaxTCHAdjgRxLevMinHO (n)GsmMeasAveWindow
GsmMeasRepIntervalGsmNcellSearchPeriodGsmMinMeasIntervalGsmMaxMeasPeriod
Handover Triggering
Handover Execution2G-to-3G back prevention
GsmMinHoInterval
GSM measurement reporting
ISHO Parameters
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22 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Measurement triggering: events 1E and 1F
Reporting starts here, 1F
CPICH Ec/No or RSCP
Serving WCDMA
cell HHoRscpThreshold=-105 dBmHHoEcNoThreshold=-12 dB
HHoRscpCancel =-102 dBm HHoEcNoCancel =-9 dB
HHoRscpCancelTime &HHoEcNoCancelTime
1280 ms=default
timeHHoRscpTimeHysteresis=100ms
HHoEcNoTimeHysteresis=100 ms,default 640 ms
No Reporting after this, 1E
RNC
Event is send in RRC: Measurement report message to RNC
HHoRscpFilterCoefficient =200 ms EcNoFilterCoefficient =600 msBefore measurement report is send,Default 200 ms
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23 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Reporting Events 6A, 6B and 6D
UE Tx Power less than the threshold =>
reporting stops here, 6B
UE Tx Power greater than the threshold, reporting
starts here, 6A
UE Tx Power
UE Tx Power Threshold,range 11-21 dBm
default max 5 dB
GsmUETxPwrTimeHyst100 ms, default 1280 ms
time
UE is using maxPower, reporting
continues, 6D
UE Tx Power = P_Max = 21 dBm
RNC
Event is send in RRC: Measurement report message to RNC
GSMUETxPwrFilterCoeff=480 msBefore measurement report is sendDefault 200 ms
Serving WCDMA
cell
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24 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Filter & Hysteresis Parameters
According to the specifications the accuracy for the Ec/No is 3 times betterthan for the RSCP:
RSCP +-6 dB, Ec/No +-2 dB longer filtering time needed for Ec/No
Optimized set for EcNoFilterCoefficient was found to be 600 ms during SHO measurements
In the CELL_DCH state the measurement period for intra frequencymeasurements is 200 ms
With longer timehysteresis more samples could be get before measurement report is send to RNC:
HHoRscpTimeHysteresis, HHoEcNoTimeHysteresis,GsmUETxPwrTimeHyst 100 ms used due to fast reaction to network to maintain the
connection
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25 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
DL measurement Threshold &Parameters (AMR) DL_code_PWR -PowerOffsetDLdpcchPilot > CPICH Pwr + MAX_DL_DPCH_TXPWR +
DL_TPCH_TXPWR_Threshold PowerOffsetDLdpcchPilot : 3 dB MAX_DL_DPCH_TXPWR: 2 dB (same parameter than CPICHtoRefRabOffset) DL_TPCH_TXPWR_Threshold for AMR: GSMDLTxPwrThrAMR: -1(-10 dB..0, step 0.5 dB)
HO measurements in case of DL code power -3 dB 33dBm +2dB-1dB
=> DL code Power 37 dBm
BTS Tx Power
Serving WCDMA cell
time
PtxDPCHMaxDefault= 40 dBm
IF measurementsby UE in CM starts here
RNC"Radio Link Measurement report message is send from BTS to RNCBTSor "Dedicated measurementreport" in case of Inter-RNC soft HOfrom drifting RNC to serving RNC
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26 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Measurement triggering: UL Quality RNC starts inter-frequency measurements based on outer-loop power control
reports. Outer-loop PC sends a quality deterioration report when the BER/BLER target
has not been reached for RNC: ULQualDetRepThreshold/2 s, 0.5..5, step 0.5s Periodic report, while BLER/BLER target is not reached. Reports from Outer-loop Power Control Controller depends on RNC:
EnableULQualDetRep/1, default 0=no, 1=yes
t
Target SIR
Max SIR target
Min SIR target
Actual SIR target
1st Quality deterioration report from PC to HC inside RNC
2nd Quality deterioration report (if the condition is stillsatisfied the message is periodically repeated)
ULQualDetRepThreshold+ all Target SIR modification command are : SIR >0
Period 5s
This should be on, default off
Faster reporting needed for successful connection-> 2 s
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27 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Inter-System measurements
After HO triggering message is sent to RNC, a RRC message Measurement Control is sent to UE containing details of the measurement that the UE must execute
Upon reception of the measurements reported by the UE, RNC applies a sliding averaging window to the RXLEV measurements.
Inter-system measurement stops if RNC has not been able to perform inter-system handover after GSMMaxMeasPeriod (value 10, default =20, 120, step 1 measreport)
RNC could not initiate inter-system measurements if: The UE has recently performed an inter-system HO: GSMMinHoInterval / 10s,
060, step 1s An inter-system HO recently fails for this UE: GSMMinMeasInterval / 10s,
060, step 1s
RNC
RXLEV measurements are reported throughMeasurement report messages
UE
RRC: Measurement report
RRC: Measurement report
The first measurement report has info from the best GSM cell:
BCCH freq & RSSI, no filteringused in UE
No filtering in UE,Periodic reporting, max 6 cells reported,
GsmMeasRepInterval 0.5s
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28 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Inter-System measurements
GsmMaxMeasPeriod (default=11s) parameter controls the CM duration time for GSM RSSI&BSIC decoding measurements.
Based on several ISHO tests in the field, the following figures were obtained (GsmNcellSearchPeriod=0):
Average RSSI: 1.13 seconds Average BSIC decoding time: 1.14 seconds (Espoo Network), 2.1
seconds (OPI Network)
Thus, CM maximum duration time seems to be quite long and in some cases does not allow the UE to find select other target cells.
GsmMaxMeasPeriod=6s is currently used in the field.
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29 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Inter-System measurements
GsmMinMeasInterval (default=10s) tells the time needed to allow repeat ISHO in case there has been fail.
In case ISHO cancellation event does not occur, and the mobile is leaving clearly the 3G boundary, then there is a death time=16 seconds where the UE is not able to attempt new GSM measurements in case of an unsuccessful ISHO.
Experience in the field has shown us that the probability of the triggering of the cancellation events (event 1B,1E) is very low, thus, it is proposed to reduce the GsmMinMeasInterval to a 2 seconds.
Trigger thresholdCancelation threshold
GSMmeasurements
Unsucessful ISHO6 s 10 s
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30 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Inter-System Handover DecisionHo cause example : CPICH RSCP
Decision is based on reported GSM carrier averaged (sliding window) RSSI AVE_RXLEV_NCell(n) > AdjgRxLevMinHO +
Max (0, GSMncellTxPwrMaxTCH - P_max) GSMMeasAveWindow / 6, 132 meas report
Inter-system HO could be forbidden during the first measurements reports from the UE, to let the UE report all the candidate inter-system cells in its neighbourhood.
NcellSearchPeriod / 0, (020 meas report)RSCP, RXLEV
Serving cell,Carrier 1
HHoRSCPThreshold:-105 dBm =>Start of measurements in CM
time
Best neighbour GSMcell, measured as RSSI
AdjgMinRxLevMinHO:>=-102 dBm => Handover
Should happen to good GSM cell
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31 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
GSM MS starts WCDMA measurements in case running average signal (RLA_C) level is below or above
certain threshold:RLA_C< F(Qsearch_I) for 0
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32 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Nokia Strategy :Reselect to good WCDMA cell
t
Serving GSM Cell
Neighbour WCDMA Cell
Ec/NoRSCP/RLA_C
5 sec.
FDD_Qmin=7(-13 dB)
Minimum Quality Requirement for WCDMA reselection (Fdd_Qmin)
Ec/N0
RSCP
Cell Reselection to WCMDA
Qsearch_I=7 (measure always
WCDMA cell)FDD_Qoffset =0 dB
(Reselect to WCDMA in case CPICH EC/No > -13 dB)
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33 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Cell reselection to GSM First ranking of all the cells based on
CPICH RSCP (WCDMA) and RSSI (GSM)
Rs = CPICH RSCP (WCDMA) + Qhyst1or Rs = RSSI (GSM) + Qhyst1
Rn=CPICH_RSCP(n) or RXLEV(n)-Qoffset1
Rn higher in GSM cellYes No
Cell re-selection to GSM Second ranking only for WCDMA cells based
On CPICH Ec/No
Rs = CPICH Ec/No + Qhyst2Rn=CPICH_Ec/No(n)-Qoffset2
Cell re-selection to WCDMA cell of highest
R value
In First Ranking the strongest GSM or WCDMA cell is found
In Second Ranking the best WCDMA cell (CPICH Ec/No) is
found
Neighbour cellcalculation with offset
parameter
Serving cell calculation with hysteresis parameter
GSM cell measurementsavailable If :
CPICH Ec/No-QqualMin < Ssearch_RAT
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34 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Key Parameters for GSM reselection
Ssearch_RAT (default value= 0 dB) & Qqualmin (default value=-20 dB) At a CPICH EcNo =Qqualmin-Ssearch_RAT or lower, the terminal will start
measuring the GSM cells. With default values, the terminal is ordered to camp on 3G at CPICH EcNo levels above -20 dB.
Ssearch _RAT should be set such that with the CPICH Ec/No of -13 dB or lower GSM measurements should start.
To have reasonable good quality but also easy cell access selection the Qqualmin could be set higher value = -17 dB
=> Ssearch_RAT would need to be 2 (4dB) to give a theshold at -13 dB.
Qhyst1 (default value= 4 dB) Since the Ssearch_RAT will be optimized to start the GSM measurements
at the lowest possible CPICH EcNo level, the difference between the 3G serving cell and GSM neighbour cell should be low enough (e.g. between 0 and 3 dB) so that the terminal can move to the GSM cell quickly.
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35 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Nokia Strategy: reselect to GSM early HCS not yet supported by NMP UE
Qmeas (CPICH Ec/No)
t
Serving WCDMA Cell
Neighbour GSM Cell
Qhyst1=4 dB
AdjgQoffset1=0 dB
SsearchRAT= 2 (4 dB)
Rs
Qqualmin= -17 dB
Squals
GSM Measurements starts when Squal= CPICH Ec/No-Qqualmin
< SsearchRAT:CPICH Ec/No< -14 dB
Cell re-selectionTo GSM
Rs
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36 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
How to avoid 3G2G ping pong
When phone is camped on 3G, GSM measurements can start when CPICH Ec/Io of serving cell is below Ssearch_RAT + QqualMin.
When phone is camped on GSM, cell reselection to 3G is possible if CPICH Ec/Io of the candidate is above FDD_Qmin.
Therefore, to avoid ping pongs between 3G and GSM the following condition should be met:
FDD_Qmin >= QqualMin+Ssearch_RAT
QqualMin=-17 dB
Ssearch_RAT=4 dB
CPICH Ec/Io
FDD_Qmin >= -13 dB
QqualMin +Ssearch_RAT
t
Camping on 3G Camping on GSM Camping on 3G
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37 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
Contents
Introduction
Compressed mode case
ISHO Parameters Optimisation
ISHO Signalling Steps
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38 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 1/19: Network Signalling (Iub and Iu-CS DL/UL)Ue NodeB RNC
RRC: Measurement Control (CPICH Ec/No & CPICH RSCP indication TRUE)
RRC: Measurement Report (event 1F)
NBAP: Radio Link Reconfiguration Prepare
NBAP: Radio Link Reconfiguration Ready
NBAP: Radio Link Reconfiguration Commit
RRC: Physical Channel Reconfiguration
RRC: Physical Channel Reconfiguration Complete
NBAP: Compressed Mode Command (CFN, TGPSI2)
RRC: Measurement Control (GSM RSSI, CFN, TGPSI2)
RRC: Measurement Report (GSM RSSI, BCCH ARFCN)
RRC: Measurement Control (BSIC, CFN, TGPSI3)
RRC: Measurement Report (BSIC, GSM Cell index)
NBAP: Compressed Mode Command (CFN, TGPSI3)
RANAP: Reloc.Req.
RANAP: Reloc.Com.RRC: Handover from UTRAN Command
MGW
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39 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 2/19:RRC: Measurement Control(DL)
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40 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 3/19:RRC: Measurement Report(UL)
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41 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 4/19: NBAP: Radio Link Reconfiguration
Prepare (DL)
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42 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 5/19: NBAP: Radio Link Reconfiguration Ready/Commit (UL/DL)
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43 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 6/19: RRC: Physical
Channel Reconfiguration
(DL)
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44 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 7/19: RRC: Physical Channel Reconfiguration Complete (UL)
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45 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 8/19: NBAP: Compressed
Mode Command (CFN, TGPSI2, DL)
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46 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 9/19: RRC: Measurement Control (GSM RSSI, CFN, TGPSI2, DL)
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47 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 10/19: RRC: Measurement Report (GSM RSSI, BCCH ARFCN, UL)
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48 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 11/19: NBAP: Compressed Mode
Command (CFN, TGPSI3, DL)
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49 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 12/19: RRC: Measurement
Control (BSIC, CFN, TGPSI3, DL)
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50 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 13/19: RRC: Measurement Report (verified BSIC, UL)
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51 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 14/19: handover requiredand handover command in A i/f
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52 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step15/19:
handover request in A i/f
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53 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 16/19: handover command in A i/f
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54 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 17/19: RRC: handover from UTRAN command (DL)
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55 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 18/19: ch. act., ho detect and ho complete in Abis i/f
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56 NOKIA Presentation_Name.PPT / DD-MM-YYYY / Initials Company Confidential
ISHO step 19/19: handover detect and handover complete in
A i/f