top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

Facebook Login
Site Registration

LTE: What is the use of polling at RLC layer ?

+9 votes
LTE: What is the use of polling at RLC layer ?
posted Dec 3, 2013 by Vimal Kumar Mishra

Share this question
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

2 Answers

+1 vote

An AM RLC entity can poll its peer AM RLC entity in order to trigger STATUS reporting at the peer AM RLC entity for the transmitted RLC AMD PDU.

answer Dec 3, 2013 by Harshita
0 votes

The transmitting side of the AM RLC entity can proactively request a status report from the peer receiving side by polling using a 1-bit indicator in the AM RLC header. The transmitting side can then use the status reports to select the RLC Data PDUs to be re-transmitted, and manage transmission and re-transmission buffers efficiently.

Typical circumstances in which the transmitting side may initiate a poll include, for example, the last PDU in the transmitting side having been transmitted, or a predefined number of PDUs or data bytes having been transmitted.

When the receiving side of the AM RLC entity receives a poll from the peer transmitting side, it checks the reception buffer status and transmits a status report at the earliest transmission opportunity.

answer Dec 24, 2014 by Pavankumar Survepalli
Similar Questions
+6 votes

While going through 3GPP 36.322 specification. I saw a routing box inside the figure. Can anyone please explain the uses of it ?

+7 votes

While going through specification, a term "window stalling" is mentioned. Can anyone please explain it ?

+4 votes

Can someone please put some light on this feature of LTE RLC layer ? I read about "Protocol error detection and recovery" at many places but couldn't understand well.

+1 vote

RLC is one of the L2 layer in LTE radio protocol stack. It does many functions such as segmentation, re-assembling and along with that it supports various transmissions mode like transparent mode, acknowledgement mode and un-acknowledgement mode.
Now I want to understand for which type of RLC SDUs and PDUs transparent mode transmission is used.
Does the RLC create single RLC entity at cell level or at the UE level or at the bearer level ?

Contact Us
+91 9880187415
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Karnataka INDIA.