How to calculate the RSSI values in LTE

[丁翔]

Hi,

 I'm working on LTE-model of ns3. I read the source code :lte-ue-phy.cc which models the LTE PHY parameters such as rsrp/rssi/rsrq/sinr.

void LteUePhy::GenerateCqiRsrpRsrq (const SpectrumValue& sinr){...} .

-----------------------------

for (itPj = m_rsReceivedPower.ConstValuesBegin ();

               itPj != m_rsReceivedPower.ConstValuesEnd ();

               itIntN++, itPj++)

            {

              rbNum++;

              // convert PSD [W/Hz] to linear power [W] for the single RE

              double interfPlusNoisePowerTxW = ((*itIntN) * 180000.0) / 12.0;

              double signalPowerTxW = ((*itPj) * 180000.0) / 12.0;

              rssiSum += (2 * (interfPlusNoisePowerTxW + signalPowerTxW));

            }

But I don't know how to use it in my own script. Are there any example scripts that I can refer to? Could someone would help me? Thank you very much!!!

Best,

Ding Xiang.

[Iconic92]

The LTE-model has various trace sources you could use.
As a reference check: list of all ns-3 traces or Tracing tutorial
In your case you could use ns3::LteUePhy (ReportCurrentCellRsrpSinr: RSRP and SINR statistics or ReportUeMeasurements: Report UE measurements RSRP (dBm) and RSRQ (dB)).

I hope this might help a bit.

Best regards,
Iconic

[丁翔]

Hi,

Thank you very much! I will check it. 

Do you know how to get the CQI feedback? I found the function CreateCqiFeedbacks (), should I try the trace souces too? 

Best,

DingXiang

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