Most viewed questions under tag epc

+2 votes

1 answer

LTE: Does TAU procedure need authentication of UE each time ?

posted Jun 11, 2014 by Ganesh

+2 votes

2 answers

Default Bearer of a UE (i.e UE1) can be Pre-emptable by another UE (i.e UE2) in Congestion?

posted Apr 12, 2016 by Mallikharjuna Reddy

0 votes

2 answers

Network Triggered Dedicated Bearer Creation

posted Jan 22, 2015 by Naveen Yanamaddi

+1 vote

1 answer

DSCP marking EPC Core for the traffic packet?

posted Aug 11, 2013 by Jai Prakash

+8 votes

1 answer

LTE: Why UE can connect to maximum one SGW at a time ?

posted Oct 26, 2013 by Vikram Singh

+2 votes

1 answer

Default EPS Bearer QOS and QOS info in the CCR message

posted Aug 28, 2015 by Pdk

+1 vote

1 answer

When to set Error 'E' bit in Diameter message?

posted Mar 28, 2016 by Chinmoy Padhi

+1 vote

0 answers

LTE-CUPS: Why a new protocol "PFCP" is defined between control and user plane nodes ?

posted Jun 30, 2018 by Vikram Singh

+1 vote

1 answer

Can PCEF initiate back to back CCR messages towards PCRF for IP-CAN session modification for same UE ?

posted Jan 31, 2015 by Vikram Singh

+1 vote

0 answers

How Packet handler process can be optimized w.r.t SDF and bearer mapping against filters at PGW/PCEF ?

posted Oct 3, 2013 by Ganesh Kumar

+3 votes

1 answer

Does PGW/PCEF tells an IP address of an UE to PCRF during IP-CAN session establishment ??

posted Sep 7, 2013 by Vimal Kumar Mishra

+1 vote

1 answer

LTE: How Replay protection works and why it is required ?

posted Oct 16, 2013 by Vikram Singh

+2 votes

1 answer

Dedicated Bearer Creation Issue with the dongle.

posted Feb 13, 2015 by Naveen Yanamaddi

+3 votes

2 answers

why does the HO preparation message contains the MIB and SIB information of the source EnodeB ?

posted Oct 8, 2013 by Sony Mohanty

+2 votes

1 answer

LTE: What all information UE may request from network in protocol configuration option (PCO) as part of attach request ?

posted Apr 28, 2018 by Vikram Singh

+1 vote

2 answers

Difference between EPC and EPC-Advanced

posted Aug 29, 2013 by anonymous

+3 votes

1 answer

LTE: Does any difference while handling normal attach and emergency attach procedures ?

posted Jan 18, 2014 by Harshita

+1 vote

2 answers

Is it possible to modify the QCI of the Default bearer after UE attach complete?

posted Jun 1, 2016 by Jabid

0 votes

1 answer

How to test S6a ,S5/S8 interface?

posted Sep 12, 2017 by Chinmoy Padhi

+4 votes

1 answer

HA (High availability) for LTE core network ?

posted Sep 23, 2013 by Ganesh Kumar

+1 vote

2 answers

Does a UE define or indicate Access Point Name during Attach procedure?

posted Aug 11, 2013 by Salil Agrawal

+4 votes

2 answers

How does SMS OVER LTE works?

posted Sep 12, 2013 by Ramchandra Sawant

+2 votes

1 answer

What is PDB, PLER, QCI Priority and how these parameters are useful in Bearer Creation?

posted Apr 26, 2016 by Mallikharjuna Reddy

+3 votes

2 answers

LTE: Can a SGW initiate bearer release for an UE due to congestion or any other reason ?

posted Jan 10, 2017 by Harshita

0 votes

1 answer

Why SGW is buffering UE data, however ENB PDCP buffers the data then why buffering is needed in SGW?

posted Aug 23, 2017 by Charan Shah

+1 vote

1 answer

How UE got to know about Service Types and when to switch between the services in LTE?

posted Jun 16, 2014 by Dilbagh

+1 vote

1 answer

Why in 4G the EPC session is considered as "always on", what does it mean and how is it different with 2G & 3G?

posted May 26, 2017 by Hana Pamora

0 votes

1 answer

How PGW knows which SGW to forward the DL data arrival indication when UE in idle mode?

posted Aug 23, 2017 by Charan Shah

+2 votes

1 answer

How does PGW differentiate incoming data for different UE's in lte ?

posted Feb 11, 2015 by Kishore Kumar Ponukumati

+1 vote

2 answers

LTE: How an UE comes to know its network supports configured APN ?

posted Jun 2, 2017 by Neeraj Mishra

0 votes

1 answer

LTE: When UE triggers integrity protected Attach request and when it sends as plain NAS message ?

posted Apr 29, 2018 by Ganesh

+3 votes

1 answer

LTE: How does network initiate bearer creation for an UE ?

posted Dec 14, 2015 by Ganesh Kumar

0 votes

1 answer

How end to end QoS in managed in LTE?

posted May 11, 2017 by Hana Pamora

+2 votes

1 answer

Can we have same tft set for two dedicated bearers

posted Jun 22, 2015 by Naveen Yanamaddi

+1 vote

1 answer

What will happen if GUTI re-allocation procedure is ongoing and in between network receives detach request ?

posted May 20, 2014 by Mohammad

+3 votes

2 answers

What is Virtualization of EPC can you please expian?

posted May 19, 2016 by Mallikharjuna Reddy

+2 votes

1 answer

How PCEF enforce the Charging Control?

posted Jun 13, 2014 by Rahul Vaidya

+6 votes

1 answer

LTE: How the UE knows if ISR is active or not?

posted Oct 25, 2013 by Neeraj Mishra

+1 vote

1 answer

How Proxy Call Session Control Function(P-CSCF) works for LTE users ?

posted Sep 19, 2013 by Neeraj Mishra

0 votes

0 answers

How the preemption works in volte network?

posted Jul 26, 2019 by anonymous

+1 vote

0 answers

Charging Rule for Default bearer without TFT info

posted Jan 6, 2016 by Pdk

+1 vote

0 answers

In Which scenario ENB sends DETACH request with EPS service not allowed?

posted Jul 11, 2018 by Jaganathan

+1 vote

0 answers

volte call failed with Unknown NAS message

posted Mar 19, 2019 by Sivakumar.d

+1 vote

1 answer

LTE: which node of the network initiate bearer creation for voice call ?

posted Jan 21, 2018 by Rupam

+1 vote

0 answers

LTE: How does UE selects attach type in attach request message ?

posted Jan 11, 2019 by Harshita

0 votes

0 answers

LTE: In CUPS architecture, how decision is taken for data buffering either at Control Plane (CP) or User Plane (UP) ?

posted Sep 1, 2018 by Harshita

+3 votes

1 answer

LTE: What could be the consequences of having default bearer with GBR QoS rather than as a non-GBR ?

posted Mar 5, 2016 by Harshita

+3 votes

1 answer

How online charging has been used for LTE users ?

posted Oct 4, 2013 by Neeraj Mishra

+4 votes

1 answer

Lawful Interception in LTE?

posted Dec 9, 2013 by anonymous

+1 vote

0 answers

VoLTE in LBO: Number translation

posted May 22, 2018 by Michael Semama