Recent posts under tag ue

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

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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

1 answer

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

posted Aug 21, 2017 by Rohit Verma

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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

4 answers

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

posted Aug 18, 2017 by Jaganathan

+1 vote

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

posted Aug 17, 2017 by Rohit Verma

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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

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

posted Aug 10, 2017 by Dheerendra

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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

+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

+2 votes

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What is Activation/Deactivation of PDCP duplication MAC CE?

posted Aug 4, 2017 by Jaganathan

+1 vote

0 answers

Why SPS is mostly used in UL communication, Why not widely used in DL communication?

posted Aug 4, 2017 by Sakshi Rai

0 votes

1 answer

What is padding BSR and why it is needed?

posted Aug 3, 2017 by Dheerendra

+1 vote

0 answers

Why multiple SR configuration is needed in 5G/NR?

posted Aug 3, 2017 by Jaganathan

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

+1 vote

3 answers

How many no of preambles available for RACH in 5G NR cell?

posted Aug 2, 2017 by Jaganathan

+2 votes

1 answer

How contention will be resolved in case ENB selected preamble?

posted Aug 1, 2017 by Himani

+2 votes

1 answer

Ho many times can we re-transmit the RACH preamble?

posted Aug 1, 2017 by Ankit Mishra

+2 votes

0 answers

Why ROHC is not supported in split bearer in 5G?

posted Jul 31, 2017 by Jaganathan

+1 vote

1 answer

Why MIB is carrying BW information?

posted Jul 31, 2017 by Ankit Mishra

0 votes

1 answer

Why Broadcast message is divided into two channel?

posted Jul 28, 2017 by Akhilesh

+2 votes

1 answer

Without MAC HARQ configuration how MSG3 is receiving ACK/NACK form ENB ,

posted Jul 27, 2017 by Akhilesh

+1 vote

1 answer

Is it mandatory to read PCFICH in every SF?

posted Jul 26, 2017 by Bharat Kumar

+1 vote

1 answer

If sidelink channel uses UL resource then who will schedule this resource?

posted Jul 26, 2017 by Jaganathan

0 votes

0 answers

CSFB: How signalling messages are exchanged in CSFB when UE moves from LTE to Legacy network ?

posted Jul 26, 2017 by Harshita

+2 votes

1 answer

How UE will get to know no of antenna supported by ENB?

posted Jul 25, 2017 by Charan Shah

+1 vote

0 answers

What is RAN based tracking and where it will be useful?

posted Jul 25, 2017 by Jaganathan

0 votes

1 answer

What is SRB1/BIS in LTE and where it will be usefull?

posted Jul 24, 2017 by Jaganathan

0 votes

1 answer

How reference signal power will be extracted from CSRS and how it will be processed in PHY layer?

posted Jul 24, 2017 by Sakshi Rai

+1 vote

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How RLF scenario will be handled at Secondary cell group?

posted Jul 21, 2017 by Jaganathan

+3 votes

1 answer

Why do we have sequence number in RLC and PDCP?

posted Jul 20, 2017 by Himani

+2 votes

1 answer

How many no of TB's can be transmitted per TTI in LTE?

posted Jul 20, 2017 by Rohit Verma

+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

1 answer

Who will decide which application data should flow into which bearer?

posted Jul 19, 2017 by Bharat Kumar

+2 votes

1 answer

What is BRS in 5g(NR) and what is the use of BRS?

posted Jul 19, 2017 by Jaganathan

+2 votes

0 answers

How receiving UE knows where to listen for PSCCH in sidelink communication ?

posted Jul 19, 2017 by Prabhavathi

+3 votes

0 answers

what is difference between UEID IE of rrc connection request and IMSI ?

posted Jul 19, 2017 by anonymous

+2 votes

1 answer

What is the use of TTI bundling and when it will be enabled?

posted Jul 18, 2017 by Akhilesh

+1 vote

0 answers

What is the use of ESS signals in NR?

posted Jul 18, 2017 by Jaganathan

+2 votes

1 answer

How many carrier component can we aggregate in 5G (NR)?

posted Jul 17, 2017 by Akhilesh

+1 vote

1 answer

Who will decide whether particular service has to use GBR or NGBR, whether UE will decide this or ENB will decide?

posted Jul 17, 2017 by Akhilesh

+2 votes

1 answer

How many Secondary ENB can be active at a time in dual connectivity?

posted Jul 17, 2017 by Jaganathan

+2 votes

1 answer

What is frequency selective scheduling in lte?

posted Jul 14, 2017 by Gnanendra Reddy

+2 votes

1 answer

Why secondary carrier is not having control channels?

posted Jul 11, 2017 by Himani