Most answered questions under tag mac

+1 vote

3 answers

What will be the MSG3 if RACH triggered to get an UL grant alone?

posted May 21, 2019 by Jaganathan

+1 vote

3 answers

Can ENB receive data during UE's DRX off duration?

posted Apr 24, 2019 by Ankit Mishra

+2 votes

3 answers

Why do we need only contention free RACH in LAA cells?

posted Apr 3, 2017 by Jaganathan

+5 votes

3 answers

In LTE does UE performs contension based RACH or contension free RACH for UE uplink sync?

posted Feb 17, 2017 by Prabhavathi

+1 vote

3 answers

what is MBSFN feature in LTE?

posted Oct 14, 2016 by Sneha Maganahalli

+1 vote

3 answers

Mac or Linux for Python Development?

posted Feb 23, 2014 by Ahmed Patel

+6 votes

3 answers

LTE: How an UE get to know cell is running on MIMO mode or not ?

posted Feb 5, 2014 by Harshita

+7 votes

3 answers

LTE: Difference between Adaptive and non-adaptive HARQ ?

posted Dec 6, 2013 by Vimal Kumar Mishra

+1 vote

3 answers

Screenshot Taking program in Python for Mac OS X.

posted Oct 19, 2013 by Seema Siddique

+1 vote

2 answers

How long UE can hold to send Reestablishment request ?

posted May 11, 2020 by Jaganathan

+1 vote

2 answers

What is the UE behavior if SR Rach is fails?

posted May 4, 2020 by Sakshi Rai

+1 vote

2 answers

What is the RACH PRB size for the NR cell ?Is it same as LTE?Is so what is the sub carrier spacing?

posted Mar 13, 2019 by Himani

0 votes

2 answers

What will be the MSG3 in TAU initiated contention based RACH in LTE?

posted Aug 7, 2018 by Ankit Mishra

+1 vote

2 answers

How Many times RACH will be re-triggered if RACH fails in UE?

posted Jul 18, 2018 by Rohit Verma

+1 vote

2 answers

If RACH trigger is made for SR max re transmission will UE sends MSG3 or not ?

posted Jul 17, 2018 by Rohit Verma

+1 vote

2 answers

Will UE transmit SRS for Whole bandwidth or particular BWP?

posted Jun 12, 2018 by Jaganathan

+1 vote

2 answers

How does UE finds CP length in TDD?

posted Apr 17, 2018 by Jaganathan

+1 vote

2 answers

In RACH how path loss effects selection of group A or group B preamble??

posted Apr 9, 2018 by Basavaraj Kamagond

+1 vote

2 answers

Does SI request RACH happens using contention free or contention based in NR?

posted Mar 7, 2018 by Jaganathan

0 votes

2 answers

What are all the scenario UE triggers PHR?

posted Feb 28, 2018 by Charan Shah

0 votes

2 answers

Does frequency hopping supported in NR?

posted Feb 26, 2018 by Jaganathan

+2 votes

2 answers

How two ENB communicates about scheduling information of UE's in LTE CA?Which interface it uses to communicate?

posted Oct 3, 2017 by Ankit Mishra

+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

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

+1 vote

2 answers

Is it possible to aggregate two different ENB with two different Bands in LTE?

posted Jul 27, 2017 by Akhilesh

+1 vote

2 answers

Why we need MAC to PHY interface in LTE? Why we dont have standard interface between other layers ?

posted Jun 2, 2017 by Himani

+1 vote

2 answers

In LTE FDD MODE if uplink and downlink band width are different then how the UE will know about that ?

posted May 31, 2017 by anonymous

+1 vote

2 answers

why QPSK modulation scheme is used for all control channels in LTE ?

posted May 27, 2017 by anonymous

0 votes

2 answers

How RLC differentiate received PDU is new transmission or re-transmission?

posted Apr 10, 2017 by Himani

+1 vote

2 answers

LTE: Why padding is required in MAC layer.

posted Mar 24, 2017 by Rohit Verma

+1 vote

2 answers

LTE: How UE will detect Paging message when UE in IDLE mode

posted Mar 24, 2017 by Rohit Verma

0 votes

2 answers

What is the difference between persistent scheduling and semi persistent scheduling?

posted Dec 14, 2016 by Gnanendra Reddy

+1 vote

2 answers

LTE: Does the eNodeB schedule data for an UE in a particular sub frame allocated for the MBMS data transmission ?

posted Oct 22, 2016 by Rupam

+3 votes

2 answers

LTE: Is there any relationship between pre-coding matrix index and rank index ?

posted Sep 25, 2016 by Ganesh

+1 vote

2 answers

LTE: On what basis either dB or dBm is considered as a measurement unit ?

posted Aug 9, 2016 by Ganesh

+2 votes

2 answers

LTE : How many types of MAC schedulers are defined and how these schedulers are differ to each other ?

posted Apr 9, 2016 by Harshita

+1 vote

2 answers

LTE-Advanced: Is it necessary primary cell and secondary cells should have same coding and modulation schemes?

posted Mar 8, 2016 by Harshita

+4 votes

2 answers

What is logical channel prioritization and how does it work ?

posted Mar 22, 2015 by Harshita

+1 vote

2 answers

LTE: How does an UE come to know about its own DCI over the PDCCH ?

posted Jun 15, 2014 by Ganesh

+2 votes

2 answers

LTE: What does impacts at eNodeB MAC scheduler , if an UE has GBR bearer as default bearer ?

posted May 8, 2014 by Vimal Kumar Mishra

+1 vote

2 answers

LTE: What does the use of SR-periodicity while handing Scheduling request ?

posted Mar 29, 2014 by Vimal Kumar Mishra

+4 votes

2 answers

LTE: What is the mean of suspending and resuming bearers ?

posted Nov 13, 2013 by Ganesh Kumar

+1 vote

2 answers

Running MacOSX as VM under CentOS 5.10?

posted Nov 6, 2013 by Deepak Dasgupta

+4 votes

2 answers

LTE: Difference between closed loop MIMO and open loop MIMO ?

posted Nov 5, 2013 by Ganesh Kumar

+4 votes

2 answers

LTE: What is the basic difference Resource Allocation type 0 and 1 ?

posted Oct 31, 2013 by Neeraj Mishra

+3 votes

2 answers

Is there any impact of PHR (Power Head Room) on the data throughput ?

posted Sep 29, 2013 by Ganesh Kumar

+3 votes

2 answers

Is there any interface between MAC-PDCP?

posted Aug 22, 2013 by Naveena Garg

+1 vote

2 answers

Host-Only networking with Virtual Box

posted Aug 19, 2013 by Ahmed Patel

0 votes

2 answers

Good frameworks for Windows/Mac?

posted Aug 6, 2013 by Luv Kumar

0 votes

1 answer

What if eNB sends grants on SPS RNTI after UE sends MAC CRNTI CE in MSG3?

posted Aug 14, 2020 by Jaganathan