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Unanswerd questions under tag s1ap

0 votes
0 answers
Troubleshooting steps for slow speed of UE in EPC core?
posted Oct 4, 2018 by Anjan Kumar Behera
  • pgw
  • s1ap
  • lte
0 votes
0 answers
LTE: How many S1-links are established by an eNodeB with MME(s) ?
posted May 20, 2018 by Harshita
  • lte
  • mme
  • enodeb
  • s1ap
+1 vote
0 answers
LTE: Which cause MME sends in s1-setup failure when TAI received in S1-setup request not found at MME ?
posted May 18, 2018 by Vimal Kumar Mishra
  • lte
  • epc
  • s1ap
  • enodeb
  • mme
+5 votes
0 answers
LTE: Why presence of Tracking Area Identity (TAI) and E-UTRAN CGI (ECGI) IEs is mandatory in Uplink NAS Transport ?
posted May 16, 2018 by Vimal Kumar Mishra
  • lte
  • mme
  • enodeb
  • s1ap
  • nas
+2 votes
0 answers
When will mme change the security keys and send it in ue context modification request message
posted Jul 26, 2017 by Naren Nishad
  • lte
  • s1ap
  • rrc
  • mme
+2 votes
0 answers
LTE: Why "Handover Type" IE is included in both handover messages i.e Handover Required and Handover Request ?
posted Nov 19, 2016 by Harshita
  • lte
  • mme
  • enodeb
  • s1ap
+1 vote
0 answers
LTE: When an eNodeB trigger PWS (Public Warning System) restart indication message towards MME ?
posted Oct 25, 2016 by Neelam
  • lte
  • mme
  • enodeb
  • s1ap
+1 vote
0 answers
LTE: In which scenarios, eNodeB trigger UE context modification indication towards to MME ?
posted Oct 21, 2016 by Vikram Singh
  • lte
  • mme
  • enodeb
  • s1ap
+1 vote
0 answers
LTE: What MME does after receiving UE capabilities information from the eNodeB for an UE ?
posted Aug 6, 2016 by Vikram Singh
  • lte
  • mme
  • s1ap
  • enodeb
  • rrc
+1 vote
0 answers
LTE to 3G IRAT handover fails in preparation phase
posted Feb 21, 2016 by Bijit Deb
  • lte
  • handover
  • s1ap
  • enodeb
  • mme
+1 vote
0 answers
When does transfer syntax error come after initial context setup request?
posted Jan 7, 2016 by anonymous
  • lte
  • mme
  • ue
  • s1ap
  • enodeb
+5 votes
0 answers
Who does radio bearer mapping during UTRAN to E-UTRAN handover where source RNC is pre-release 8
posted Dec 28, 2015 by anonymous
  • lte
  • mme
  • s1ap
  • enodeb
+5 votes
0 answers
How does presence of "Handover Restriction List" information impact on subsequent handover ?
posted Mar 30, 2015 by Harshita
  • lte
  • mme
  • enodeb
  • s1ap
  • x2
+3 votes
0 answers
Does UE capability info indication mandatory or optional over S1-AP link ?
posted Mar 11, 2015 by Harshita
  • lte
  • s1ap
  • enodeb
  • mme
+3 votes
0 answers
SRVCC Sv interface, SRVCC PS to CS Request message contentsSRVCC
posted Jan 28, 2015 by Pdk
  • lte
  • mme
  • s1ap
+5 votes
0 answers
Is there any advantage of having "Emergency Area ID" IE within the Warning Area List IE ?
posted Oct 9, 2014 by Neeraj Mishra
  • lte
  • s1ap
+2 votes
0 answers
What are all actions taken by MME, when UE context Modification or E-RAB Modification procedure gets failed ?
posted Sep 4, 2014 by Vimal Kumar Mishra
  • lte
  • mme
  • s1ap
  • enodeb
0 votes
0 answers
LTE: What are all possible chances of data loss at the time of re-establishment or handover procedure ?
posted Jul 4, 2014 by Rupam
  • lte
  • enodeb
  • handover
  • rrc
  • s1ap
+1 vote
0 answers
LTE: Can a MME cancel ongoing paging procedure when it is already in progess ?
posted Jun 24, 2014 by Ganesh
  • mme
  • lte
  • s1ap
0 votes
0 answers
LTE RRC : What is the significance of Cell Traffic Trace procedure ?
posted Jun 4, 2014 by Vikram Singh
  • lte
  • enodeb
  • mme
  • s1ap
+2 votes
0 answers
LTE: What is the use of CSFallback indicator in ICS procedure ?
posted Jan 26, 2014 by Harshita
  • lte
  • mme
  • enodeb
  • s1ap
...