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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.
+1 vote
0 answers
How RAN handles URLLC?
posted Jan 24 by Jaganathan
  • 5g
  • lte
  • ue
  • mac
  • rlc
+2 votes
1 answer
How RLC handles the status polling?
posted Jan 7 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 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 Susanta 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
+2 votes
0 answers
In which scenarios and on what basis eNB select either UMD PDU 5-bit or 10-bit SN in RLC?
posted May 1, 2015 by anonymous
  • lte
  • rlc
+4 votes
0 answers
How does RLC layer detect protocol error and also it correct ?
posted Mar 22, 2015 by Harshita
  • lte
  • rlc
  • enodeb
  • ue
0 votes
Engineer at Qualcomm
posted Feb 23, 2015 by anonymous
+2 votes
1 answer
why pdcp buffer and rlc buffer
posted Jan 28, 2015 by anonymous
  • lte
  • rlc
  • mac
+3 votes
1 answer
Even segmentation is already done on RLC SDUs ,why resegmentation of rlc pdus are required in LTE .
posted Jan 27, 2015 by Aaditri Thakur
  • lte
  • rlc
+1 vote
1 answer
Is There any cases that RLC posts the buffer more than grant given by MAC layer?
posted Jan 19, 2015 by anonymous
  • lte
  • rlc
  • mac
+3 votes
1 answer
What is the role of RLC layer in the Access Layer LTE Protocol Stack?
posted Nov 16, 2014 by anonymous
  • lte
  • rlc
+7 votes
2 answers
What is the need of RLC UM mode in LTE?
posted Nov 4, 2014 by anonymous
  • lte
  • rlc
+1 vote
1 answer
Why flexible RLC and fixed RLC PDU have same data rate 14.4 Mbps and what is advantage of flexible RLC?
posted Sep 23, 2014 by Kumod
  • umts
  • rlc
0 votes
1 answer
What is the relationship between t-Reordering timer and Status prohibit timer in RLC?
posted Jul 9, 2014 by anonymous
  • lte
  • rlc
  • timer
+3 votes
1 answer
When LTE RLC layer re-transmission reach max number, what we do in eNodeB?
posted Jun 22, 2014 by anonymous
  • lte
  • rlc
+11 votes
0 answers
What is RLC throttling in WCDMA/UMTS and what is the condition to trigger this?
posted Feb 7, 2014 by Hiteshwar Thakur
  • umts
  • wcdma
  • lte
  • rlc
+2 votes
0 answers
LTE: What factors derive AM_Window_Size ?
posted Dec 12, 2013 by Harshita
  • lte
  • enodeb
  • ue
  • rlc
+3 votes
1 answer
LTE: HARQ re-ordering ? what does it mean ?
posted Dec 6, 2013 by Neeraj Mishra
  • lte
  • ue
  • enodeb
  • rlc
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