What are the normal range of KPI like SINR, RSRP, and RSRQ in a LTE network for a fair performance?

4G LTE
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1

Hi Experts.
What are the normal range of KPI like SINR, RSRP, and RSRQ in a LTE network for a fair performance?

2
  • RSRP: -44 to -140 dBm
  • RSRQ: -3 to -19.5 dB
  • BLER (Block Error Rate): <10%
  • CQI (Channel Quality Indicator): >10 | Range 0-15
  • SINR: >24 | Range 0-30
  • RI (Rank Indicator): 1,2
  • TM (Transmission Mode): TM2, TM3, TM4
  • MIMO: 2x2, 4x4
  • QAM: QPSK, 16QAM, 64QAM
  • MSC and TBS
  • Role of CFI in Throughput
2 Likes
3

SINR is rarely above 20 in real scenario and observed to be negative as well.

4

You can observe above 20 in main lobe and within 50-100 m of the serving cell.
Also users must be avg.

1 Like
5

Link for this snip: is in one of the video in youtube channel “LTE discussion”

Goto 11:07 sec

6

Yes.

There the range for RSRQ is mentioned as -3 to -19.5 dB.
What should be the minimum value for interference free coverage?

7

Based upon interference modulation level have been defined, if you look at table.
Almost above 15 SINR 64 QAM assigned and likewise for lower range low modulation.

-3 db is good among all.

8

With -19 dB RSRQ, it is possible to get modcod of 64QAM?

What is the expected 4G coverage(in radial direction) for each band like 700, 800, 900, 1800, 2100, 2300?
Any data available?
Considering no or very small antenna tilt.

9

You need to get into RSRQ cal for this answer.
RSRQ = RSRP / (RSSI/N),
Considering ideal radio environment with 2 RS transmitted and no user data transmission, RSSI = 2RSRPN (as per RSSI definition)

So, RSRQ = RSRP / (2RSRPN/N) =1/2=0.5=-3db

This is how a excellent RSRQ is calculated, now using same formula u can calculate for bad signals too.

10

Hello Experts.

What is the minimum RSRP and RSRQ that is normally configured for LTE cell selection and reselection?

11

Not lower than -124 dBm or -126 dBm.

1 Like
12

RSRQ?

In our network, minRxqual is -34 dB which makes it ineffective.

13

Not lower than -22 dB.