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Post under tag nas
Most answered questions under tag nas
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+1
vote
4
answers
Why we need Two types of Security modes (NAS,AS) in LTE
posted
Oct 9, 2015
by
Mallikharjuna Reddy
lte
security
nas
rrc
ue
+5
votes
3
answers
Difference between attach and service request message ?
posted
Nov 12, 2014
by
Neeraj Mishra
lte
mme
ue
nas
+2
votes
3
answers
LTE: When the ESM Information Request message is sent by the MME to the UE ?
posted
Mar 24, 2014
by
Vimal Kumar Mishra
lte
nas
mme
ue
+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
interview questions
mme
nas
lte
–2
votes
2
answers
Why network triggers identity request after authentication procedure ?
posted
Apr 11, 2017
by
Sakshi Rai
lte
ue
mme
enodeb
nas
+3
votes
2
answers
LTE: How does TAU procedure work ?
posted
Nov 4, 2015
by
Harshita
lte
mme
nas
ue
+3
votes
2
answers
LTE: When does a network prefer periodic tracking area update from an UE ?
posted
Sep 29, 2015
by
Vimal Kumar Mishra
lte
mme
ue
nas
+3
votes
2
answers
In the paging message send from MME to eNB , which paging ue identity is used ?
posted
Jun 4, 2015
by
Sachidananda Sahu
lte
enodeb
rrc
nas
paging
+2
votes
2
answers
Which NAS message is sent by UE to establish a dedicated bearer in LTE network ?
posted
May 31, 2015
by
Harshita
lte
ue
nas
+3
votes
2
answers
Why does authentication procedure need to complete before security activation ?
posted
Mar 10, 2015
by
Harshita
lte
nas
mme
ue
+3
votes
2
answers
How does paging procedure work for an UE for SMS service in a lte network ?
posted
Feb 11, 2015
by
Vikram Singh
lte
ue
sms
mme
nas
+2
votes
2
answers
How NAS Procedures Works In LTE
posted
Aug 27, 2014
by
Yogeshwar Thakur
lte
nas
0
votes
2
answers
How NAS messages are transported between the UE and the MME.
posted
Aug 21, 2014
by
anonymous
lte
nas
mme
ue
+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
lte
mme
ue
nas
+2
votes
2
answers
LTE: Does UE send APN information within the Attach Request message ?
posted
Mar 24, 2014
by
Vimal Kumar Mishra
lte
mme
ue
nas
attach
+3
votes
2
answers
LTE: What does mean by "MS is configured for NAS signalling low priority" ?
posted
Oct 19, 2013
by
Vikram Singh
lte
nas
epc
ue
+1
vote
2
answers
How MME handles Attach Req for emergency or non-emergency call ?
posted
Oct 17, 2013
by
Vikram Singh
lte
epc
nas
0
votes
1
answer
Is nas security mandatory procedure while doing attach ?
posted
Dec 1, 2020
by
anonymous
lte
nas
interview questions
enodeb
core network
+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
lte
mme
ue
nas
+1
vote
1
answer
What is on demand system information transfer in 5G
posted
Mar 5, 2018
by
Mallikharjuna Reddy
lte
ue
nas
5g
+1
vote
1
answer
5G: What is the significance of new terms "SUCI" and "SUPI" ? And also which all places both are used ?
posted
Feb 13, 2018
by
Harshita
5g
core network
ue
nas
telecom
+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
lte
mme
ue
nas
enodeb
+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
lte
mme
ue
nas
+3
votes
1
answer
Clarification on security mode procedure in LTE
posted
Sep 21, 2016
by
Sachidananda Sahu
lte
enodeb
ue
nas
ltesecurity
+3
votes
1
answer
TAU procedure in Connected mode and Idle
posted
Aug 9, 2016
by
Arijit Chakraborty
lte
mme
enodeb
nas
+2
votes
1
answer
LTE: What is the difference between Algo ID and Algo distinguisher while generating security keys ?
posted
Feb 19, 2016
by
Harshita
lte
security
nas
+2
votes
1
answer
LTE: When does an UE trigger Tracking Area complete message towards the network ?
posted
Feb 7, 2016
by
Vikram Singh
lte
mme
nas
ue
+2
votes
1
answer
LTE: How an UE come to know whether it has to perform periodic TAU or not ?
posted
Jan 26, 2016
by
Harshita
lte
mme
nas
ue
+3
votes
1
answer
What is EXTENDED SERVICE REQUEST for packet services (ESRPS) in lte ?
posted
Jan 5, 2016
by
Saurabh Bhardwaj
lte
ue
nas
+4
votes
1
answer
LTE: How does authentication procedure work for the LTE network and why it is required ?
posted
Dec 22, 2015
by
Vikram Singh
lte
ue
nas
security
authentication
+3
votes
1
answer
LTE: How TAU procedure can differ for different eNodeBs/cells of a tracking area ?
posted
Dec 14, 2015
by
Ganesh Kumar
lte
mme
core
nas
ue
+4
votes
1
answer
How can we send multiple UE paging records?
posted
Sep 30, 2015
by
Badikela Mahesh
lte
enodeb
rrc
paging
nas
+2
votes
1
answer
LTE: What does mean by attach in S101 mode ?
posted
Sep 17, 2015
by
Harshita
lte
nas
+4
votes
1
answer
Why Identity Request Need to be perform by MME after successful Authentication and Security Mode Complete...?
posted
Mar 17, 2015
by
Srinivas Sambari
lte
mme
ue
nas
enodeb
+2
votes
1
answer
List of NAS messages available in LTE?
posted
Feb 26, 2015
by
Gnanendra Reddy
lte
nas
rrc
+3
votes
1
answer
How does network behave when UE sends TAU to a new/different MME ?
posted
Feb 1, 2015
by
Harshita
lte
mme
nas
ue
+4
votes
1
answer
What may be possible reasons to reject the tracking area update request for an UE in a lte network ?
posted
Oct 22, 2014
by
Harshita
lte
mme
ue
nas
+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
lte
mme
nas
ue
+5
votes
1
answer
Difference between NAS level congestion control and APN based congestion control ?
posted
Oct 18, 2014
by
Harshita
lte
nas
+1
vote
1
answer
How NAS COUNT is constructed and managed during time...
posted
Jul 27, 2014
by
Hr
lte
nas
+1
vote
1
answer
How to handle NAS messages at RRC?
posted
Jul 18, 2014
by
anonymous
lte
rrc
nas
0
votes
1
answer
NAS Attach Complete message contains 2 security header type IEs and 2 protocol discriminator IEs
posted
Jun 23, 2014
by
anonymous
lte
nas
+2
votes
1
answer
LTE: Does TAU procedure need authentication of UE each time ?
posted
Jun 11, 2014
by
Ganesh
lte
mme
nas
ue
epc
+1
vote
1
answer
LTE : Why does UE maintain various lists ?
posted
Jun 3, 2014
by
Vikram Singh
lte
ue
mme
nas
0
votes
1
answer
LTE: What is the significance of "Nonce" parameter ?
posted
Jun 3, 2014
by
Vikram Singh
lte
nas
+1
vote
1
answer
Normal Release vs Unspecified CAUSE code in NAS/LTE?
posted
Jun 3, 2014
by
anonymous
lte
nas
+3
votes
1
answer
LTE NAS: When EMM Information message sends to an UE ?
posted
Apr 10, 2014
by
Neeraj Mishra
lte
mme
nas
ue
+4
votes
1
answer
LTE: When UE sends NAS message to MME before sending rrc connection reconfiguration complete to the eNodeB ?
posted
Apr 9, 2014
by
Vimal Kumar Mishra
lte
mme
enodeb
ue
nas
+3
votes
1
answer
LTE: What would be the possible causes for attach reject ?
posted
Feb 19, 2014
by
Ganesh Kumar
lte
nas
epc
ue
+3
votes
1
answer
LTE : What is NAS recovery procedure ?
posted
Feb 17, 2014
by
Harshita
lte
mme
nas
ue
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