Most viewed questions under tag mme

+4 votes

2 answers

What are messages transferred between MME-HSS?

posted Mar 25, 2015 by anonymous

+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

+3 votes

1 answer

LTE: How does an eNodeB construct ECGI and TAI for an UE while sending messages like "Initial UE message " ?

posted Feb 29, 2016 by Vimal Kumar Mishra

+2 votes

1 answer

Does Mme also sends Purge(PUR) to HSS when MME receives detach request from enodeb side?

posted Jun 19, 2017 by Rakesh Kumar Suman

+4 votes

0 answers

LTE: Can someone please share wireshark logs for successful handover with MME and SGW relocation ?

posted Apr 19, 2014 by Vimal Kumar Mishra

0 votes

1 answer

Which of the following statements are FALSE regarding S1-based handover?

posted Jun 17, 2014 by Juan Cruz Mikelsen

+2 votes

1 answer

LTE: Please explain the procedure of Detach Request (Network Initiated) in detail?

posted Aug 10, 2015 by Naveen Yanamaddi

+7 votes

1 answer

LTE X2 Handover: What is the necessity of presence of GUMMEI in handover request message ?

posted Feb 13, 2014 by Vimal Kumar Mishra

0 votes

1 answer

How MME selects SGW?Based on what parameter MME selects SGW?

posted Jun 6, 2017 by Rohit Verma

0 votes

1 answer

LTE: What are all KDF used in LTE ?

posted Jun 19, 2014 by Harshita

+4 votes

1 answer

Why does HSS generate multiple authentication vectors during the authentication procedure ?

posted Dec 26, 2015 by Vikram Singh

+2 votes

1 answer

LTE: Why does UE include "Last visited registered TAI" information while sending Attach Request message to MME ?

posted Feb 1, 2016 by Harshita

0 votes

1 answer

LTE: What does AMF signify ?

posted Jun 24, 2014 by Neelam

+1 vote

1 answer

Is any relationship between RRC-IDLE and ECM-IDLE states ?

posted Apr 9, 2015 by Alok

–2 votes

2 answers

Why network triggers identity request after authentication procedure ?

posted Apr 11, 2017 by Sakshi Rai

0 votes

2 answers

LTE: What does eNodeB send "RRC establishment cause " in Initial UE message to MME ?

posted Mar 15, 2016 by Harshita

0 votes

2 answers

LTE HANDOVER : Does PATH SWITCH REQ/ REQ ACK message exchange necessary to complete the handover procedure ?

posted Jun 4, 2014 by Vikram Singh

+1 vote

2 answers

LTE: Is it necessary to trigger tracking area update soon after handover procedure ?

posted Jun 27, 2017 by Harshita

+2 votes

1 answer

In which scenario, a MME can reject the service request message receives from an UE ?

posted Oct 21, 2014 by Harshita

+3 votes

1 answer

How TAU in source eNB interrupts S1 handover (intra MME S1 HO)?

posted Feb 18, 2015 by Alkesh Mehta

+4 votes

1 answer

LTE: Does the bearer(s)/session(s) get deleted when CS fallback happen for an UE?

posted Jan 10, 2014 by Harshita

+4 votes

1 answer

How target enodeb will validate the new incoming user during x2 or s1 handover?

posted Mar 24, 2015 by Srinivas Sambari

+2 votes

2 answers

LTE HO: Is it possible after successful resource allocation at target eNodeB, source eNodeB sends HO Cancel ?

posted May 30, 2014 by Harshita

+2 votes

1 answer

LTE: Why does Modify Bearer Request message send by MME to SGW as part of attach procedure ?

posted May 24, 2014 by Neeraj Mishra

+2 votes

1 answer

MME is not responding to S1 setup request message

posted Aug 12, 2013 by Deepak Dasgupta

+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

0 votes

1 answer

X2 HO preparation success rate suddenly decreased with root cause as invalid MME Group ID and MME Group ID is unique?

posted Apr 17, 2018 by anonymous

+6 votes

1 answer

LTE: How trace session procedure works for lte core network ?

posted Jan 8, 2014 by Harshita

+3 votes

2 answers

What are the messages present between Enb and MME and How you see those messages in wireshark?

posted Apr 4, 2015 by Gnanendra Reddy

+3 votes

2 answers

How eNodeB knows to which MME it should send the request when eNodeB is connected to pool of MME?

posted Jul 27, 2015 by Karan Joglekar

+1 vote

1 answer

LTE: How does MME find PGW IP address serving an APN so that it can send CS Request to right PGW ?

posted May 11, 2018 by Ganesh

+2 votes

1 answer

what is "freeze M-TMSI" flag in purge UE Answer Message?

posted Nov 18, 2014 by Gnanendra Reddy

+1 vote

0 answers

When does transfer syntax error come after initial context setup request?

posted Jan 7, 2016 by anonymous

+2 votes

1 answer

LTE: Why SGW includes ARP while sending downlink data notification to MME ?

posted Jan 6, 2017 by Harshita

+2 votes

1 answer

Diameter LTE Location Update

posted Jan 16, 2015 by Pdk

+1 vote

1 answer

LTE: Why MME UE S1AP ID is of length 32 bits and eNodeB UE S1AP ID of length 24 bits only ?

posted Jul 17, 2018 by Harshita

+2 votes

1 answer

Can a Default no-GBR bearer be converted to GBR dedicated bearer in LTE?

posted May 2, 2015 by Sourav Mondal

+3 votes

1 answer

When MME assigns New GUTI to UE

posted May 6, 2016 by Mohanraj R

+1 vote

1 answer

LTE: What is the use of different types of tracking area list for an UE provided by MME ?

posted May 15, 2018 by Harshita

+3 votes

1 answer

LTE: Why does network send primary and secondary DNS servers IP addresses in attach accept message ?

posted Jul 10, 2016 by Neeraj Mishra

+1 vote

0 answers

LTE : How does MME keep mapping of "TAI list" that is assigned to UE against the "LAI" assigned to UE ?

posted Jan 26, 2016 by Harshita

0 votes

0 answers

LTE: How does an UE decide that it has to send Bearer Resource Allocation or Modification Request to MME ?

posted Jun 26, 2014 by Ganesh

+3 votes

1 answer

LTE: How does MME of one network resolve address of HSS belong to other network in roaming scenarios ?

posted May 1, 2016 by Neeraj Mishra

0 votes

0 answers

LTE: Due to which reasons, UE enables ESM information transfer (EIT) flag in PDN connectivity request message ?

posted Jan 22, 2018 by Rupam

+4 votes

1 answer

What does relay node indicator IE presence in Initial UE message signify ?

posted Oct 7, 2014 by Harshita

+1 vote

2 answers

Can anyone say what happens when MME does not support the security algorithms sent by UE

posted Jun 25, 2014 by anonymous

+1 vote

2 answers

What is the difference between HSS and SPR? Why SPR is needed when HSS does the same job?

posted May 22, 2017 by Dheerendra

+1 vote

1 answer

LTE : Does it mandatory to have default bearer as a non - GBR bearer ?

posted May 5, 2014 by Ganesh Kumar

+3 votes

2 answers

LTE: Is the inter operator handover possible between two LTE networks ?

posted Jul 21, 2016 by Harshita

+4 votes

2 answers

In what are all scenarios other than CS and PS incoming calls/sessions, MME can initiate paging for an UE?

posted Nov 9, 2014 by anonymous