top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

what factors derive User plane delay in lte ?

+2 votes

Somewhere I found that user plane delay should be less then 5 millisecond.
What are the things derive it ?

posted Sep 13, 2013 by Vikram Singh

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

U-Plane latency is defined as one-way transmit time between a packet being available at the IP layer in the UE edge node and the availability of this packet at the IP layer in the EUTRAN node. U-Plane latency is relevant for the performance of many applications.

How did they drive it?
To calculate it 3gpp usually does hit and trial methods. Like they will tell you the standard things. In real time scenarios it will not be same.

For user plane delay they have sent 0 bytes payload data (IP packet) which has taken less than 5 ms delay approx 4 ms and further S1-U delay. So it came around 5 ms delay is the standard.

answer May 2, 2014 by Hiteshwar Thakur
Similar Questions
+4 votes

In 3GPP 36.323 specification mentioned that the size of PDCP SDU is 8188 Octets. From where this number comes ?

+2 votes

I found 1st bit which is used to indicate that packet carrying Data/Control information. My question is that why first bit is used even packet itself known as "PDCP Data PDU".

+2 votes

I know integrity protection is imposed for RRC messages that are exchanged between UE and eNodeB. What would be the reason for not having the integrity for user plane traffic ?