lte analysis uetr
DESCRIPTION
mTRANSCRIPT
Slide 1Slide title In CAPITALS 50 pt Slide subtitle 32 pt
Prep: Jatinder Singh
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
UETR
TI Logs
MME Traces
SGi Traces
Non E///
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
LTE Layer 3 KPIs for TEMS Discovery
Access ability and Retain ability are two main KPIs for LTE Layer 3 Analysis. ASCOM’s VoLTE report also provides LTE RRC KPIs like RRC Setup Failure Rate, RRC Setup Attempts, RRC Setup Complete, RRC Drop Rate, RRC Calls Successfully Completed, RRC Drops, etcetera.
RRC Setup Failure Rate: (# of RRC Connection Setup Attempt - # of RRC Connection Setup Success) / # of RRC Connection Setup Attempt. Based upon, all MS3 (MO), MS4 (MT) and MS2 (LC) attempts respectively.
RRC Setup Attempts: Count of event RRC Connection Request. This event is triggered by a RRC Connection Request message. Note, this event is only generated if followed by a RRC Connection Setup Complete, or RRC Connection Setup Failure event in same log-file / device.
RRC Setup Complete: Count. This event is triggered by a RRC Connection Setup Complete message. Note, this event has to be preceded by a RRC Setup Attempt event in same log-file / device.
RRC Drop Rate: For MO and MT column: # of RRC Connection Drop / (# of RRC Connection Completed (Release) + # of RRC Connection Drop), based upon all MS3 (MO) and MS4 (MT) attempts respectively. For LC column: # of RRC Connection Drop / (Total Duration of all MS2 (LC) RRC Connections / Mean Holding Time), based upon all MS2 RRC Connections.
RRC Calls Successfully Completed: Count of event RRC Connection Release. This event is triggered by a RRC Connection Release message.
RRC Drops: Count. This event is triggered when receiving a RRC Connection Re-establishment Request message.
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
LTE Layer 3 KPIs for TEMS Discovery
LTE KPIs from TD VoLTE report are not accurate since it derives the KPIs from the data that is present in the TEMS Investigation log files and not from UETRs.
User when attempts to make a call new RRC Connection is established in case user was in Idle Mode and once the call is ended by user Tinactivity timer starts, with the expiration of this Tinactivity timer RRC connection is released.
So in case where Drive test team ended the call and stopped recording the TEMS Investigation logs without waiting for Tinactivity timer to cause RRC Connection release we will miss the RRC Connection Release message, to eradicate the same Drive test team should wait for some time after ending the call before stopping the TI logs. (Example in MPCS Project, Tinactivity timer was set to 10 seconds so drive test team was asked to wait for about a minute before they stop recording).
Another case when TI can miss the L3 message is when user turns ON the UE, RRC connection is established QCI 9, and QCI 5 are established if drive test team now starts recording the TI logs and then make a call while UE is already in RRC Connected mode TI logs will miss the RRC connection setup messages, causing incorrect KPIs from VoLTE report.
To eradicate the same in MPCS VoLTE project UETR logs were collected and were used intensively during the analysis procedure as well as while providing the KPIs to customer.
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
Sheet2
Poor RF and Poor SINR
UE Sends RRC Measurement report for cell DFWe06001653 PCI 352 from PCI 474 cell DFWe06002241, EnB sends Reconfiguration to UE but UE never received the same, RSRP -116 SINR -6 BLER 30.91. Cell selectionw as observed to cell DFWe06002241 PCI 280.
Uptilt PCI 280 cell DFWe06002241 Current EDT 02 to EDT 01 / 00 I(Refer to Planet Predictions)
Cannot do so CDMA Sharing
00:18:22.134
13:57:58.573
5/12/2012
32.792695759
-96.853871101
Poor SINR
UE was at PCI 77 cell DFWe06001762, UE sends RRC Measurement report for PCI 14 cell DFWe06001762. This spot is 3.6 kms away from PCI 14 and 1.4 kms away from PCI 379 cell DFWe06052236, to which it Handovers after 5 seconds. RSRP -104.4 SINR -9.8 BLER 66.67
Downtilt PCI 14 cell DFWe06003012 Current EDT 02 to 03, and Uptilt PCI 379 cell DFWe06052236 current EDT 04 to 03.
02:30:53.768
16:28:52.611
5/12/2012
32.747732113
-96.918341802
Missing NBR Poor SINR causing high BLER
Ue is at PCI 500 cell DFWe06002232 and is asking for HO to back lobe of PCI 432 cell DFWe06052236. Since PCI 5009 and 432 are not NBRs for HO is not seen. RSRP -102.5 SINR -10 BLER 43.5
Uptilt PCI 500 cell DFWe06002232 Current EDT 05 to 04
Cannot do so CDMA Sharing
00:02:56.692
16:31:49.344
5/12/2012
32.736883256
-96.89278062
LTE RRC Connection Release
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RRC Analysis Procedure from TD
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RRC Analysis Procedure from TD
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
RRC Analysis Procedure from TD
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Verification of Normal Release
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Internal Events
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RRC Drop Occurs
VoLTE Call Continues
0 Throughput was observed for ~ 2 secs
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Above is a bulk parsing of UETR’s collected during the drive. The messages are for the same UE but from different ENB’s.
“RRC Connection Request” is sent to a “New” ENB
“Old” ENB gets a UE Context Release Command.
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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QCI9 – default bearer to the Internet APN.
QCI5 – default bearer to the IMS APN
QCI1 – dedicated bearer to IMS APN (used to carry the “voice” traffic)
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
MME sends “Modify Bearer Request” to CPG
MME does not send a “Release Bearer” Request to the CPG because the UE is already connected to a “New” ENB.
MME sends “Modify Bearer Request” to the CPG to change the GTP tunnel end point ID.
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Normal VoLTE Call End After ~3 minutes – Drive team ended call.
Normal End was observed on UE Pcaps
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Prep: Jatinder Singh
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
UETR
TI Logs
MME Traces
SGi Traces
Non E///
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
LTE Layer 3 KPIs for TEMS Discovery
Access ability and Retain ability are two main KPIs for LTE Layer 3 Analysis. ASCOM’s VoLTE report also provides LTE RRC KPIs like RRC Setup Failure Rate, RRC Setup Attempts, RRC Setup Complete, RRC Drop Rate, RRC Calls Successfully Completed, RRC Drops, etcetera.
RRC Setup Failure Rate: (# of RRC Connection Setup Attempt - # of RRC Connection Setup Success) / # of RRC Connection Setup Attempt. Based upon, all MS3 (MO), MS4 (MT) and MS2 (LC) attempts respectively.
RRC Setup Attempts: Count of event RRC Connection Request. This event is triggered by a RRC Connection Request message. Note, this event is only generated if followed by a RRC Connection Setup Complete, or RRC Connection Setup Failure event in same log-file / device.
RRC Setup Complete: Count. This event is triggered by a RRC Connection Setup Complete message. Note, this event has to be preceded by a RRC Setup Attempt event in same log-file / device.
RRC Drop Rate: For MO and MT column: # of RRC Connection Drop / (# of RRC Connection Completed (Release) + # of RRC Connection Drop), based upon all MS3 (MO) and MS4 (MT) attempts respectively. For LC column: # of RRC Connection Drop / (Total Duration of all MS2 (LC) RRC Connections / Mean Holding Time), based upon all MS2 RRC Connections.
RRC Calls Successfully Completed: Count of event RRC Connection Release. This event is triggered by a RRC Connection Release message.
RRC Drops: Count. This event is triggered when receiving a RRC Connection Re-establishment Request message.
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
LTE Layer 3 KPIs for TEMS Discovery
LTE KPIs from TD VoLTE report are not accurate since it derives the KPIs from the data that is present in the TEMS Investigation log files and not from UETRs.
User when attempts to make a call new RRC Connection is established in case user was in Idle Mode and once the call is ended by user Tinactivity timer starts, with the expiration of this Tinactivity timer RRC connection is released.
So in case where Drive test team ended the call and stopped recording the TEMS Investigation logs without waiting for Tinactivity timer to cause RRC Connection release we will miss the RRC Connection Release message, to eradicate the same Drive test team should wait for some time after ending the call before stopping the TI logs. (Example in MPCS Project, Tinactivity timer was set to 10 seconds so drive test team was asked to wait for about a minute before they stop recording).
Another case when TI can miss the L3 message is when user turns ON the UE, RRC connection is established QCI 9, and QCI 5 are established if drive test team now starts recording the TI logs and then make a call while UE is already in RRC Connected mode TI logs will miss the RRC connection setup messages, causing incorrect KPIs from VoLTE report.
To eradicate the same in MPCS VoLTE project UETR logs were collected and were used intensively during the analysis procedure as well as while providing the KPIs to customer.
Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
Sheet2
Poor RF and Poor SINR
UE Sends RRC Measurement report for cell DFWe06001653 PCI 352 from PCI 474 cell DFWe06002241, EnB sends Reconfiguration to UE but UE never received the same, RSRP -116 SINR -6 BLER 30.91. Cell selectionw as observed to cell DFWe06002241 PCI 280.
Uptilt PCI 280 cell DFWe06002241 Current EDT 02 to EDT 01 / 00 I(Refer to Planet Predictions)
Cannot do so CDMA Sharing
00:18:22.134
13:57:58.573
5/12/2012
32.792695759
-96.853871101
Poor SINR
UE was at PCI 77 cell DFWe06001762, UE sends RRC Measurement report for PCI 14 cell DFWe06001762. This spot is 3.6 kms away from PCI 14 and 1.4 kms away from PCI 379 cell DFWe06052236, to which it Handovers after 5 seconds. RSRP -104.4 SINR -9.8 BLER 66.67
Downtilt PCI 14 cell DFWe06003012 Current EDT 02 to 03, and Uptilt PCI 379 cell DFWe06052236 current EDT 04 to 03.
02:30:53.768
16:28:52.611
5/12/2012
32.747732113
-96.918341802
Missing NBR Poor SINR causing high BLER
Ue is at PCI 500 cell DFWe06002232 and is asking for HO to back lobe of PCI 432 cell DFWe06052236. Since PCI 5009 and 432 are not NBRs for HO is not seen. RSRP -102.5 SINR -10 BLER 43.5
Uptilt PCI 500 cell DFWe06002232 Current EDT 05 to 04
Cannot do so CDMA Sharing
00:02:56.692
16:31:49.344
5/12/2012
32.736883256
-96.89278062
LTE RRC Connection Release
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
RRC Analysis Procedure from TD
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
RRC Analysis Procedure from TD
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
RRC Analysis Procedure from TD
Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
Verification of Normal Release
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
Internal Events
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
RRC Drop Occurs
VoLTE Call Continues
0 Throughput was observed for ~ 2 secs
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Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Above is a bulk parsing of UETR’s collected during the drive. The messages are for the same UE but from different ENB’s.
“RRC Connection Request” is sent to a “New” ENB
“Old” ENB gets a UE Context Release Command.
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Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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QCI9 – default bearer to the Internet APN.
QCI5 – default bearer to the IMS APN
QCI1 – dedicated bearer to IMS APN (used to carry the “voice” traffic)
Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
MME sends “Modify Bearer Request” to CPG
MME does not send a “Release Bearer” Request to the CPG because the UE is already connected to a “New” ENB.
MME sends “Modify Bearer Request” to the CPG to change the GTP tunnel end point ID.
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Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ
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Normal VoLTE Call End After ~3 minutes – Drive team ended call.
Normal End was observed on UE Pcaps
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Top right corner for field-mark, customer or partner logotypes. See Best practice for example.
Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 2-5 20 pt Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿŒœŠšŸƒˆ˜–—‘’‚“”„†‡•…‰‹›⁄€™−≤≥ ΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨαβγδεζηθικλνξορςΣΤΥΦΧΨΩ