Recent posts under tag mme

+4 votes

1 answer

Why MME is sending paging with TMSI why not it is sending with GUTI?

posted Feb 7, 2018 by Sakshi Rai

+4 votes

2 answers

Can MME send paging message without TMSI ID?

posted Feb 7, 2018 by Sakshi Rai

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

0 votes

1 answer

LTE: What happens when an UE move from old MME to new MME without doing handover ?

posted Dec 21, 2017 by Ganesh

0 votes

1 answer

LTE: How does MME select PGW for a PDN connectivity request receives from an UE ?

posted Dec 20, 2017 by Ganesh

0 votes

Which protocol is used for communication between MME and HSS ? [MCQ]

posted Dec 19, 2017 by Harshita

+1 vote

2 answers

LTE: What is the purpose of sending Bearer Resource Allocation Request to MME from UE ?

posted Dec 3, 2017 by Ganesh

0 votes

0 answers

Is it possible that MCC MNC gets changed in a same Diameter session without changing session ID

posted Nov 30, 2017 by anonymous

0 votes

1 answer

Why government is not forcing operator to collect GPS information for tracking?

posted Oct 31, 2017 by Ankit Mishra

+1 vote

1 answer

What is EMM substate in LTE?

posted Oct 27, 2017 by Jaganathan

+1 vote

1 answer

In an operator sharing environment how new operator will get the IMSI and other Identity from other network HSS?

posted Oct 24, 2017 by Akhilesh

+1 vote

1 answer

LTE: Is it possible SGW and PGW support multiple IPs for GTP tunneling ?

posted Oct 10, 2017 by Harshita

0 votes

1 answer

How UE will be connected to Network after power saving mode

posted Oct 5, 2017 by Rakesh Kumar Suman

0 votes

1 answer

LTE: Is it possible without having IP from default bearer, UE can make IMS call ?

posted Sep 22, 2017 by Harshita

+2 votes

0 answers

Is it possible, an eNodeB can identify UE and IoT devices separately ?

posted Sep 15, 2017 by Ganesh

+1 vote

1 answer

call flow/concept of eDRX and power saving mode from mme /epc perspective? thanks in advance.

posted Sep 14, 2017 by anonymous

+2 votes

1 answer

How SGW knows ENB tunneling ID because MME will select SGW in the initial attach but SGW not aware of ENB?

posted Aug 24, 2017 by Charan Shah

+2 votes

1 answer

LTE: If all of a sudden enodeb shut down then how mme will know about enodeb?

posted Aug 10, 2017 by anonymous

0 votes

2 answers

During S1AP path switch request message, MME releases bearer for QCI 1 with radio network cause 30 and unknown erab id?

posted Aug 9, 2017 by anonymous

0 votes

0 answers

While UE doing RLF if ENB comes up then what msg enb will send to epc and if ENB rejects RLF then what epc will do.

posted Aug 8, 2017 by anonymous

+1 vote

1 answer

What will be the behaviour of EnodeB with MME after receiving RRC Connection Reestablishment Complete message???

posted Aug 7, 2017 by Hamesh Raja M A

0 votes

1 answer

Whether MME send paging message to all ENB or it sends to particular ENB which has corresponding UE?

posted Aug 2, 2017 by Sakshi Rai

+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

+2 votes

2 answers

LTE: Is it possible to share an eNodeB among multiple operators dynamically ?

posted Jul 22, 2017 by Vikram Singh

+3 votes

0 answers

LTE: On what basis MME prepare list of TAI for an UE when it attach to the network ?

posted Jul 20, 2017 by Harshita

+3 votes

1 answer

Is TAC (tracking area code) required for Mme configuration?

posted Jul 19, 2017 by anonymous

+2 votes

0 answers

Why in LTE, TAU is needed in connected mode while LAU is not needed in legacy 2G/3G in connected mode?

posted Jul 18, 2017 by anonymous

+2 votes

1 answer

LTE: Does the application function (AF) involve during the establishment of each dedicated bearer (GBR/non-GBR) ?

posted Jul 18, 2017 by Harshita

+2 votes

0 answers

Why E field is not introduced in Rel15 MAC?

posted Jul 4, 2017 by Jaganathan

+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

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

posted Jun 19, 2017 by Rakesh Kumar Suman

+1 vote

0 answers

After which controlling message s1-C and s1-U bearer will be created in LTE?

posted Jun 12, 2017 by Sakshi Rai

+1 vote

1 answer

LTE: Difference between default and dedicated bearer and on what basis it is decided which one to establish ?

posted Jun 12, 2017 by Vikram Singh

+2 votes

1 answer

LTE: After which LTE procedure, MME fetches the UE subscription details from the HSS ?

posted Jun 11, 2017 by Ganesh

+2 votes

2 answers

LTE: Why UE does not "attach complete" message along with "RRC Connection Reconfiguration Complete" ?

posted Jun 9, 2017 by Ganesh Kumar

0 votes

1 answer

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

posted Jun 6, 2017 by Rohit Verma

+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

What is TFT?Is it an Id or is it derived from the IP header of the packet(i.e. type of service field)?

posted May 16, 2017 by Bharat Kumar

0 votes

2 answers

MME behavior when s1 Setup req is received twice from same eNB

posted May 16, 2017 by Sumit Deshmukh

+1 vote

0 answers

Why paging priority is needed? when it will be usefull in LTE?

posted May 15, 2017 by Akhilesh

0 votes

1 answer

How Roaming charges and procedure will happen in LTE?

posted May 5, 2017 by Dheerendra

+2 votes

3 answers

what mme does once mme gets ULA(update location answer ) from HSS with respect to egtpc?

posted May 1, 2017 by Rakesh Kumar Suman

+1 vote

1 answer

What is format/datatype of apn in egtpc, mme in case of more level ?

posted Apr 28, 2017 by Rakesh Kumar Suman

0 votes

0 answers

LTE: Is there any way to trigger paging message from SGW using openair-cn vms?

posted Apr 20, 2017 by anonymous

+1 vote

0 answers

Can anyone help me out what are the bugs you have faced while doing MME functional testing(S1AP/ NAS/ GTP-C)

posted Apr 12, 2017 by anonymous

–2 votes

2 answers

Why network triggers identity request after authentication procedure ?

posted Apr 11, 2017 by Sakshi Rai

+2 votes

1 answer

How MME selects HSS? Is it based on DNS or predefined configuration ?

posted Apr 7, 2017 by Ankit Mishra

+1 vote

2 answers

when UE send GUTI, IMSI, S-TMSI?

posted Apr 5, 2017 by anonymous

+2 votes

1 answer

what is difference between ULR and AIR ? what is the condition mme will trigger these messages ?

posted Apr 4, 2017 by anonymous

+1 vote

1 answer

when mme initiates Authentication Information request(AIR)/ULR/PUR ?

posted Apr 4, 2017 by Rakesh Kumar Suman