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Post under tag nas
Most voted questions under tag nas
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+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
+5
votes
3
answers
Difference between attach and service request message ?
posted
Nov 12, 2014
by
Neeraj Mishra
lte
mme
ue
nas
+5
votes
1
answer
Difference between NAS level congestion control and APN based congestion control ?
posted
Oct 18, 2014
by
Harshita
lte
nas
+5
votes
1
answer
LTE: Difference between network triggered and UE triggered service request ?
posted
Jan 30, 2014
by
Ganesh Kumar
lte
nas
mme
ue
+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
+4
votes
1
answer
How can we send multiple UE paging records?
posted
Sep 30, 2015
by
Badikela Mahesh
lte
enodeb
rrc
paging
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
+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
+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
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
lte
mme
nas
ue
+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
+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
+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
+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
+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
+3
votes
0
answers
Why there is 2 level of security as NAS and AS in LTE?
posted
Feb 6, 2015
by
Rajib Samui
lte
security
rrc
nas
+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
+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
+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
+3
votes
1
answer
LTE: How GUTI reallocation procedure works ?
posted
Dec 12, 2013
by
Ganesh Kumar
lte
ue
nas
+3
votes
1
answer
LTE: What are the possible modes of operation possible for an UE during attach procedure ?
posted
Oct 19, 2013
by
Vikram Singh
lte
epc
ue
nas
+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
+3
votes
0
answers
LTE : Does it necessary to send MS network capability while doing combined attach ?
posted
Oct 15, 2013
by
Vimal Kumar Mishra
lte
epc
nas
+2
votes
0
answers
Is there any scenario where the Tracking area update request sent be the ue will not be integrity protected?
posted
Aug 26, 2016
by
Lavanya L
lte
mme
nas
+2
votes
0
answers
LTE: What MME does when it receives indication from UE saying it supports LPP (LTE Positioning Protocol) ?
posted
Aug 6, 2016
by
Vikram Singh
lte
mme
ue
nas
+2
votes
0
answers
Bearer resource allocation reject with cause request rejected by Serving GW or PDN GW
posted
Feb 24, 2016
by
Pankaj Kumar
nas
lte
mme
+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
+2
votes
1
answer
LTE: What does mean by attach in S101 mode ?
posted
Sep 17, 2015
by
Harshita
lte
nas
+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
+2
votes
1
answer
List of NAS messages available in LTE?
posted
Feb 26, 2015
by
Gnanendra Reddy
lte
nas
rrc
+2
votes
0
answers
How does alert procedure work for non-EPS services for an UE in lte network ?
posted
Feb 11, 2015
by
Vikram Singh
lte
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
+2
votes
2
answers
How NAS Procedures Works In LTE
posted
Aug 27, 2014
by
Yogeshwar Thakur
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
+2
votes
0
answers
LTE: What is the significance of presence of "EPS bearer context status" IE with the TAU ?
posted
Jun 11, 2014
by
Neelam
lte
mme
nas
ue
+2
votes
0
answers
LTE: Can TAU timer be modified at run time or it is always static ?
posted
Jun 11, 2014
by
Neelam
lte
epc
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
+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
+2
votes
1
answer
LTE: What is extended service request in lte NAS and when it is required ?
posted
Jan 20, 2014
by
Neeraj Mishra
lte
mme
ue
nas
+2
votes
1
answer
LTE: What does means by non-current native EPS security context ?
posted
Oct 17, 2013
by
Vikram Singh
lte
epc
nas
+2
votes
1
answer
LTE: what is mapped EPS security context and how it works ?
posted
Oct 16, 2013
by
Vikram Singh
lte
epc
nas
+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
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