Recent posts under tag lte

+1 vote

1 answer

Can single mobile have multiple IP?

posted Sep 11, 2017 by Sakshi Rai

0 votes

1 answer

Can single SGW connect to multiple PGW?If yes ,please explain the scenario?

posted Sep 11, 2017 by Sakshi Rai

+1 vote

0 answers

LTE: in which scenario open discovery is performed and in which scenario restricted discovery is performed?

posted Sep 11, 2017 by Prabhavathi

+3 votes

2 answers

what type of RNTI used for scrambling ETWS paging message and UE specific paging message?

posted Sep 11, 2017 by Prabhavathi

0 votes

0 answers

LTE: Does 3GPP standard specify the main functionality of Radio Resource Manager at eNodeB ?

posted Sep 9, 2017 by Harshita

+1 vote

1 answer

Why do you need ARQ retransmission?

posted Sep 8, 2017 by Himani

+1 vote

1 answer

Why does RLC retransmitting its PDU after MAX HARQ retx , why not after first HARQ NACK ?

posted Sep 8, 2017 by Himani

+1 vote

0 answers

Will OAM configure lower layers or RRM configures lower layer (who gives configuration to RRC)?

posted Sep 7, 2017 by Dheerendra

+1 vote

1 answer

What is the difference between OAM and RRM?Why do we need both the entity?

posted Sep 7, 2017 by Dheerendra

+1 vote

0 answers

LTE with Data OFF Scenario

posted Sep 6, 2017 by anonymous

+1 vote

1 answer

Resource Block calculation

posted Sep 6, 2017 by Sushant Bose

+1 vote

1 answer

After reaching max HARQ retransmission still UE retransmitting the TB?

posted Sep 5, 2017 by Himani

0 votes

2 answers

While Handover why RLF is occurring?

posted Sep 5, 2017 by Ankit Mishra

+2 votes

0 answers

How to decrease IMS/Volte call set up time?

posted Sep 5, 2017 by Shyam Singh Pal

0 votes

1 answer

What happens if HARQ max retransmission reaches?

posted Sep 4, 2017 by Himani

+1 vote

2 answers

What is MAC configuration?When RRC will configure MAC ,Is it for every UE ?

posted Sep 4, 2017 by Himani

0 votes

0 answers

LTE: Initial attach Procedure

posted Sep 4, 2017 by Sushant Bose

0 votes

1 answer

Can someone share EBI (EPS-Bearer Identity) mapping to QCI for LTE?

posted Sep 2, 2017 by anonymous

0 votes

0 answers

Why SeNB UE X2AP ID is mandatory in Dual connectivity message SENB ADDITION REQUEST REJECT?

posted Sep 2, 2017 by anonymous

0 votes

0 answers

LTE: During preamble transmission, how devices choose the frequency band in PRACH for preamble transmission?

posted Sep 2, 2017 by anonymous

0 votes

1 answer

What is the delay between MPI messages?

posted Aug 30, 2017 by Ankit Mishra

+1 vote

2 answers

In SRVCC PS-CS initiated.Why not PS-PS voice calls in SRVCC as 3G network is there to support handover for packet call ?

posted Aug 30, 2017 by Mohit Mohan

0 votes

1 answer

Why lawful interception is done by PGW and SGW, anyone entity is enough right?

posted Aug 28, 2017 by Charan Shah

0 votes

0 answers

Why SGW is not having connection with GGSN?Instead it has connection with SGSN

posted Aug 28, 2017 by Charan Shah

+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

+1 vote

0 answers

what is dedicated broadcast harq process ?

posted Aug 24, 2017 by anonymous

+1 vote

1 answer

does seperate harq process exists for BCH?

posted Aug 24, 2017 by anonymous

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

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

+1 vote

0 answers

What is the difference between Path gain and path loss in LTE?

posted Aug 22, 2017 by Gnanendra Reddy

–1 vote

1 answer

VOLTE and SIP/IMS are the same technology or VOLTE is like normal 2G call?

posted Aug 21, 2017 by Rohit Verma

0 votes

2 answers

Why do we need NDI bit in HARQ process?However we have ACK/NACK mechanism then why do we need to NDI?

posted Aug 21, 2017 by Himani

+2 votes

2 answers

In LTE RRC connected state.what all protocols stack & signaling used to access internet in uplink direction at Enodeb?

posted Aug 18, 2017 by Mohit Mohan

+1 vote

1 answer

Why Packet error loss rate is allowed more for conversational voice in QCI table?

posted Aug 18, 2017 by Rohit Verma

+2 votes

2 answers

Downlink Data rate is more than Uplink data rate

posted Aug 18, 2017 by Sushant Bose

+2 votes

4 answers

Why variable sub carrier spacing is introduced in 5G NR?

posted Aug 18, 2017 by Jaganathan

+1 vote

0 answers

What is the use of flow label field in SIP header?

posted Aug 17, 2017 by Rohit Verma

+1 vote

0 answers

When i make whatsapp call or IMO call will it go via SIP protocol or different protocol?

posted Aug 17, 2017 by Rohit Verma

0 votes

2 answers

How UE distinguish incoming packet (from UE upper layer not from ENB) is SIP data or something else packet?

posted Aug 16, 2017 by Rohit Verma

+1 vote

1 answer

SIP/IMS layer is application layer or LTE protocol layer?

posted Aug 16, 2017 by Rohit Verma

+1 vote

1 answer

In commercial mobiles after switching on internet options will it go to IDLE mode in LTE?

posted Aug 16, 2017 by Karan Patel

+1 vote

2 answers

At which point the LTE throughput is measured ? At UE handset or Enodeb Antenna port or somewhere else?

posted Aug 11, 2017 by Mohit Mohan

+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

1 answer

Why do we need LCG in MAC? Instead of LCG can't we use LC?

posted Aug 10, 2017 by Dheerendra

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

1 answer

How UE latch to the UTRAN in CSFB?

posted Aug 9, 2017 by Jaganathan

+1 vote

2 answers

Does UE capability says which 3Gpp release UE supports?

posted Aug 9, 2017 by Karan Patel

+1 vote

0 answers

Why at most one SPS configuration is allowed per serving cell and why cant we have multiple SPS configuration?

posted Aug 8, 2017 by Jaganathan

+3 votes

1 answer

How many types of HO is available in LTE?

posted Aug 8, 2017 by Dheerendra

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