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Recent posts under tag rlc

The Radio Link Control protocol connects the MAC layer with the RRC layer on the control plane and the PDCP layer on the data plane. It offers transparent, unacknowledged and acknowledged data transfer and supports segmentation and reassembly. The protocol is specified in 3GPP TS 25.322.
0 votes
0 answers
Why CCCH SDU is passing through RLC TM mode? Instead RRC can directly deliver to MAC?
posted Dec 5, 2019 by Ankit Mishra
  • lte
  • rlc
  • 5g
0 votes
1 answer
During Re-establishment why AM state variables are kept same?
posted Oct 31, 2019 by Himani
  • lte
  • ue
  • rlc
  • 5g
0 votes
1 answer
Why there is PDCP sequences number even though RLC has? .
posted Aug 14, 2019 by Debasis Mohapatra
  • lte
  • rlc
  • pdcp
  • 5g
0 votes
1 answer
Why RLC duplication detection applicable only for AM mode?
posted Aug 2, 2019 by Akhilesh
  • lte
  • 5g
  • nr
  • rlc
0 votes
0 answers
What is the state of UE if the RLC UM Max HARQ re transmission fails?
posted Jul 11, 2019 by Charan Shah
  • lte
  • ue
  • mac
  • rlc
0 votes
1 answer
How many time RLC status PDU can be re transmitted?
posted Jul 8, 2019 by Ankit Mishra
  • lte
  • ue
  • 5g
  • rlc
0 votes
0 answers
Do we need PDCP re-ordering in RLC UM mode?
posted Jul 5, 2019 by Ankit Mishra
  • lte
  • rlc
  • ue
0 votes
1 answer
Does RLC reports RLF incase no status PDU reception from receiver?
posted Jun 21, 2019 by Jaganathan
  • lte
  • ue
  • rlc
0 votes
0 answers
How many instance sender RLC can send Poling for an single window of missing PDU?
posted Jun 20, 2019 by Jaganathan
  • lte
  • ue
  • rlc
0 votes
0 answers
Which layer does HARQ re-ordering in 5G?
posted Apr 16, 2019 by Jaganathan
  • lte
  • ue
  • 5g
  • nr
  • rlc
0 votes
1 answer
How Sender RLC AM entity behaves if it didn't receive status PDU because of congestion in network?
posted Mar 28, 2019 by Ankit Mishra
  • lte
  • ue
  • rlc
0 votes
1 answer
What is the RLC mode used in NR for SRB's?
posted Mar 22, 2019 by Jaganathan
  • lte
  • 5g
  • nr
  • rlc
0 votes
0 answers
How Does LTE PDCP understands NR RLC status message during reestablishment?
posted Mar 19, 2019 by Jaganathan
  • lte
  • ue
  • 5g
  • nr
  • rlc
0 votes
1 answer
What are the transmission mode enb sends to UE in RRC connection setup and rrc connection reconfiguration?
posted Mar 7, 2019 by Gnanendra Reddy
  • lte
  • rrc
  • enodeb
  • mac
  • rlc
+1 vote
0 answers
How RAN handles URLLC?
posted Jan 24, 2019 by Jaganathan
  • 5g
  • lte
  • ue
  • mac
  • rlc
+2 votes
1 answer
How RLC handles the status polling?
posted Jan 7, 2019 by Himani
  • lte
  • rlc
  • ue
  • enb
  • 5g
0 votes
0 answers
How does the transmission opportunity is notified by MAC and the TB size is being sent over it to AM and UM?
posted Jan 1, 2019 by Mayur Jivanrao Nakade
  • 5g
  • mac
  • rlc
  • lte
  • enb
0 votes
0 answers
Why concatenation is removed from RLC NR?
posted Dec 14, 2018 by Rohit Verma
  • lte
  • enodeb
  • rlc
  • 5g
  • nr
0 votes
0 answers
Maximum retx for Polling PDU?
posted Dec 6, 2018 by Karan Patel
  • lte
  • ue
  • rlc
+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
  • lte
  • rlc
  • pdcp
  • mac
  • enodeb
+1 vote
0 answers
How UE RLC entity will forward status PDU to SENB in case of DL data?
posted Jan 4, 2018 by Jaganathan
  • lte
  • ue
  • enb
  • rlc
0 votes
1 answer
Re-transmission at lower layers
posted Dec 27, 2017 by Sushant Bose
  • lte
  • ue
  • rlc
  • mac
+1 vote
LTE: Which RLC mode adds the least amount of delay to user traffic? [MCQ]
posted Dec 21, 2017 by anonymous
  • lte
  • rlc
  • interview questions
+1 vote
LTE: Which of the following is/are the function of UM RLC? [MCQ]
posted Dec 11, 2017 by anonymous
  • interview questions
  • lte
  • rlc
+1 vote
LTE: Which of the following is/are the types of RLC PDU Formats? [MCQ]
posted Dec 11, 2017 by anonymous
  • lte
  • interview questions
  • rlc
+1 vote
1 answer
Does ARQ follows stop and wait mechanism for data transfer?
posted Sep 26, 2017 by Rohit Verma
  • lte
  • ue
  • rlc
  • enodeb
+1 vote
1 answer
Why do you need ARQ retransmission?
posted Sep 8, 2017 by Himani
  • lte
  • ue
  • mac
  • rlc
+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
  • lte
  • mac
  • rlc
  • enodeb
  • ue
+3 votes
1 answer
Why do we have sequence number in RLC and PDCP?
posted Jul 20, 2017 by Himani
  • lte
  • enodeb
  • pdcp
  • rlc
  • ue
+1 vote
0 answers
LTE: When RLC 15-bit LI value is used in AM mode ??? Based on what condition.
posted Jun 28, 2017 by Hamesh Raja M A
  • rlc
  • lte
  • pdcp
  • enodeb
  • ue
0 votes
0 answers
Why do we have different SN range in PDCP&RLC?
posted Jun 6, 2017 by Karan Patel
  • lte
  • enodeb
  • rlc
  • pdcp
+1 vote
1 answer
Why do we need segmentation or concatenation for the RLC re-transmission?
posted May 30, 2017 by Jaganathan
  • lte
  • rlc
  • enodeb
0 votes
1 answer
Why broadcast messages are carried in TM mode ?
posted May 26, 2017 by Akhilesh
  • lte
  • enodeb
  • rlc
0 votes
1 answer
WHy HARQ re-ordering in is RLC?But HARQ functionality is done by MAC?
posted May 26, 2017 by Himani
  • lte
  • enodeb
  • rlc
  • ue
  • mac
0 votes
2 answers
How RLC differentiate received PDU is new transmission or re-transmission?
posted Apr 10, 2017 by Himani
  • lte
  • rlc
  • mac
  • ue
  • enodeb
+1 vote
1 answer
What is protocol error detection and recovery?
posted Apr 7, 2017 by Ankit Mishra
  • lte
  • rlc
  • ue
+1 vote
1 answer
LTE: Why HARQ re-ordering is required in RLC UM mode ???
posted Apr 3, 2017 by Himani
  • lte
  • rlc
  • ue
  • enodeb
+1 vote
1 answer
In downlink, does RLC forms different PDUs for each UE scheduled to receive data this TTI or just a single PDU?
posted Feb 20, 2017 by Mayank Gupta
  • lte
  • rlc
  • mac
+2 votes
0 answers
RLC AMD PDU byte segments
posted Feb 14, 2017 by Prabhavathi
  • rlc
  • lte
0 votes
0 answers
What is eNB RLC queue size as per LTE standards?
posted Jan 23, 2017 by anonymous
  • rlc
  • lte
0 votes
0 answers
LTE: Is it possible during MBMS data transmission few of the eNodeBs have less MBMS resources compare to others ?
posted Nov 18, 2016 by Rupam
  • lte
  • mbms
  • enodeb
  • rlc
  • ue
0 votes
1 answer
LTE: Does the MAC perform dynamic scheduling for MBMS data or it is persistent throughout the MBMS session duration ?
posted Nov 18, 2016 by Rupam
  • lte
  • mbms
  • mac
  • enodeb
  • rlc
0 votes
1 answer
Why RLC TM data does not go through PDCP layer, any pointer on how to proceed?
posted Nov 15, 2016 by anonymous
  • lte
  • pdcp
  • rlc
+1 vote
1 answer
LTE: Does RLC segmentation and reassembling applicable for MBMS data ?
posted Nov 13, 2016 by Rupam
  • lte
  • mbms
  • rlc
  • ue
  • enodeb
+2 votes
1 answer
Can anyone please explain briefly PDCP re-establishment support & retransmission of PDCP SDU at handover in RLC AM mode?
posted Oct 4, 2016 by Bhagyashree R
  • lte
  • pdcp
  • rlc
+1 vote
2 answers
LTE: What type of data is considered for transparent mode (TM) transmission in LTE RLC ?
posted Oct 1, 2016 by Rupam
  • lte
  • rlc
  • enodeb
  • ue
+1 vote
1 answer
LTE: Due to which parameter or protocol layer, LTE puts restriction of having maximum 8 bearers per UE ?
posted Sep 17, 2016 by Harshita
  • lte
  • enodeb
  • rlc
  • mac
  • pdcp
+1 vote
0 answers
Can anyone provide information regarding few issues observed in UE side and debug process while testing on LTE ?
posted Apr 22, 2016 by Arijit Chakraborty
  • lte
  • enodeb
  • ue
  • rrc
  • rlc
+1 vote
1 answer
Which RLC SDU's are associated with PDCP and which are associated with RRC?
posted Jun 13, 2015 by anonymous
  • lte
  • rlc
  • rrc
+1 vote
1 answer
RLC Re-Transmission Buffer Priority?
posted Jun 4, 2015 by anonymous
  • lte
  • rlc
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