Most voted questions under tag mac

+2 votes

1 answer

Does UE supports different TM mode in Scells ?

posted Feb 14, 2020 by Dheerendra

+2 votes

1 answer

What happens if Rel-10 UE fails to decode the PDCCH of Scell?

posted Feb 13, 2020 by Dheerendra

+2 votes

1 answer

If DRX and SPS are activated together , Then How To Reactivate the SPS configuration middle of DRX?

posted Feb 12, 2020 by Himani

+2 votes

0 answers

How DSCP marking in packets improves the QOS in RAN?

posted Jan 23, 2019 by Jaganathan

+2 votes

1 answer

How many times paging can be re transmitted in RAN?

posted Jan 23, 2019 by Jaganathan

+2 votes

1 answer

What is redundancy version used in every Non adaptive retransmission in LTE ?

posted Dec 7, 2018 by Jaganathan

+2 votes

1 answer

Is it mandatory to monitor PDCCH if cross carrier scheduling in enabled?

posted Sep 25, 2018 by Ankit Mishra

+2 votes

1 answer

Can UE monitor RAR in measurement Gap?

posted Sep 21, 2018 by Jaganathan

+2 votes

1 answer

Why in RLC layer Seq. numbering is given to RLC SDU's and not to RLC PDU's?

posted Sep 21, 2018 by Mayur Jivanrao Nakade

+2 votes

1 answer

Why do we need an RACH in RN in LTE?

posted Sep 4, 2018 by Jaganathan

+2 votes

1 answer

If Measurement Gap and paging cycle collide how UE will handle?

posted Aug 27, 2018 by Akhilesh

+2 votes

1 answer

LTE: Why only PHICH not other channels are transmitted in the Master Information Block ?

posted Jul 25, 2018 by Vikram Singh

+2 votes

1 answer

What is ZP-CSI-RS in NR?

posted Jul 9, 2018 by Dheerendra

+2 votes

1 answer

What is the TA for RACH request message to send?

posted Jul 3, 2018 by Himani

+2 votes

1 answer

Why there is restriction for SR transmission only in PUCCH format 0 and 1?

posted Jun 28, 2018 by Himani

+2 votes

0 answers

How UE applies TA for multi carrier in NR?Is it same for both or different?

posted Jun 5, 2018 by Jaganathan

+2 votes

1 answer

How UE behaves if ENB doesn't provide enough bitrate in GBR bearer?

posted Jun 5, 2018 by Himani

+2 votes

1 answer

What kind of scheduler fits in commercial ENB(macro cell)?

posted Apr 26, 2018 by Himani

+2 votes

0 answers

How many NB-IOT UE does 20Mhz ENB supports ?

posted Mar 29, 2018 by Jaganathan

+2 votes

0 answers

How UE gets the TM information in 5G and How many TM modes available in NR?

posted Mar 26, 2018 by Himani

+2 votes

1 answer

Why do we need TPC command for SRS transmission in NR?

posted Mar 23, 2018 by Jaganathan

+2 votes

0 answers

Is transmit diversity available in NR?

posted Mar 13, 2018 by Jaganathan

+2 votes

1 answer

What is the meaning of special cell in dual connectivity?

posted Mar 9, 2018 by Jaganathan

+2 votes

1 answer

Why handover is needed in intra ENB ?

posted Mar 6, 2018 by Jaganathan

+2 votes

1 answer

How many PUCCH formats are in NR?

posted Feb 13, 2018 by Jaganathan

+2 votes

0 answers

What is BWP common DL& UL configuration in NR?

posted Feb 1, 2018 by Jaganathan

+2 votes

1 answer

Why PDCP duplication is activated from MAC in NR?

posted Jan 25, 2018 by Rohit Verma

+2 votes

0 answers

Why there is no padding BSR in NR?

posted Jan 25, 2018 by Rohit Verma

+2 votes

1 answer

Can more than one QOS flow data flows into the single DRB in 5G?

posted Jan 3, 2018 by Himani

+2 votes

1 answer

5G:MAC is doing priority handling between UE's and logical channel then why do we need SDAP?

posted Nov 22, 2017 by Jaganathan

+2 votes

0 answers

How MAC scheduler schedules all the UE within TTI duration in 5G?

posted Nov 3, 2017 by Himani

+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

+2 votes

1 answer

Which operator supports connected mode DRX?

posted Sep 21, 2017 by Karan Patel

+2 votes

0 answers

What is Activation/Deactivation of PDCP duplication MAC CE?

posted Aug 4, 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

1 answer

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

posted Jul 27, 2017 by Akhilesh

+2 votes

1 answer

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

posted Jul 20, 2017 by Rohit Verma

+2 votes

1 answer

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

posted Jul 18, 2017 by Akhilesh

+2 votes

1 answer

Why secondary carrier is not having control channels?

posted Jul 11, 2017 by Himani

+2 votes

0 answers

Why E field is not introduced in Rel15 MAC?

posted Jul 4, 2017 by Jaganathan

+2 votes

1 answer

What is recommended bit rate MAC CE?

posted Jun 29, 2017 by Jaganathan

+2 votes

1 answer

What is the difference between dual connectivity and carrier aggregation in LTE?

posted Jun 22, 2017 by Jaganathan

+2 votes

0 answers

What is the meaning of numerologies/ TTI duration in LTE-NR?

posted Jun 21, 2017 by Jaganathan

+2 votes

0 answers

What is CCE allocation in LTE? What is the relationship between CCE and aggregation level?

posted Jun 8, 2017 by Charan Shah

+2 votes

1 answer

LTE: Why radio sub frame is 1 ms long ? Is it possible to bring the sub frame duration in the unit of microseconds ?

posted Jun 6, 2017 by Harshita

+2 votes

3 answers

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

posted Apr 3, 2017 by Jaganathan

+2 votes

1 answer

LTE: When an eNodeB decide to enable TTI bundling for an UE ?

posted Nov 24, 2016 by Harshita

+2 votes

1 answer

LTE: Which modulation and coding schemes are used for data transmission of MTCH ?

posted Nov 2, 2016 by Rupam

+2 votes

1 answer

LTE: How many control format messages have been defined for uplink channels ?

posted Oct 10, 2016 by Vikram Singh