[lee hyunjee]

Hello,
I want to run the simulator to get fixed CQI graph using just PMI feedback, so I set the paramters in LTE_load_parameters.m bellow:

BW_vect = 1.4e6;
LTE_params.ChanMod_config.type = ‘VehA’;
LTE_params.UE_config.mode = 2;
LTE_params.UE_config.nRX = 1;
LTE_params.BS_config.nTx = 2;
LTE_params.UE_config.feedback = false;
LTE_params.UE_config.PMI_fb = true;
LTE_params.UE_config.RIandPMI_fb = false;
LTE_params.UE_config.CQI_fb = false;

However, I already set LTE_params.UE_config.feedback = false, so PMI feedback calculation didn’t work.
Do I have to change setting LTE_params.UE_config.feedback = true for PMI feedback?

[Stefan Pratschner]

Dear Hyunjee,

I suggest to use

LTE_params.UE_config.feedback = true;
LTE_params.UE_config.PMI_fb = true; 
LTE_params.UE_config.RIandPMI_fb = false;
LTE_params.UE_config.CQI_fb = false;

best
Stefan

[Stefan Schwarz]

LTE_params.UE_config.mode = 2; is Alamouti coding –> no PMI feedback is required for Alamouti coding –> use LTE_params.UE_config.mode = 4; which is CLSM

[Author]

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