top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

How can i calculate Signal to Interference plus noise ratio ?

+1 vote
637 views

I have the RSRQ values but i want to calculate SINR, can someone help and explain the method too.

posted May 3, 2014 by Pankaj Deshmukh

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

1 Answer

+1 vote

RSRQ = (N * RSRP)/ RSSI .
Where RSRP is the linear average of reference signal power seen by UE. While taking average on those PREs would be considered which carry reference signal power. (2 Physical resource elements per Physical Resource block).
RSSI is the liner average of power seen by UE for OFDM symbols referring antenna port 0 over the N resource blocks.
RSSI considers serving cell power, neighbor cells power, noise etc.

As per my knowledge, If you have ideal figure of RSRQ, I mean to say there is no interference, noise at all in the system then by comparing ideal RSRQ value actual RSRQ, SINR can be find out. But I am not sure since I never work for physical layer.

answer May 3, 2014 by Vimal Kumar Mishra
Similar Questions
+6 votes

As per my knowledge, LTE technology has frequency reuse factor 1, which means same frequency can be used two or more eNodeBs. As per my knowledge, cell interference can be controlled by using different PCI to each of the neighbor nodes.

I want to know, Are there any other things being used to avoid cell interference in lte technology or just PCI i.e physical cell identity is just enough to avoid cell interference.

+3 votes

I tried a lot to understand this networks in LTE. Can someone please help me here and make it easy for me by giving an overview of this method?
Thanks in Advance.

+2 votes

The question concerns the interference. Why interference occur in the area between the sectors of the same eNB and between eNBs. The result of such interference's is the decrease of SINR and the DL throughput. Such situation is not present in uplink. Is it possible to reduce the impact of this phenomenon?

...