LTE PRACH DETECTION IN LTE TOOLBOX

Hi all,

I am a newbiee with lte toolbox and would really appreciate if some one could help me.

I am going through the prach detection function from lte toolbox; lteprach detect and i could not get around this code shown below.

% The following parameter specifies the fraction of the timing window at

% the end of the timing window for one preamble that will be considered

% as belonging to the next preamble and having a timing offset of zero.

% This effectively excludes timing offsets of above (1.0-deadzone) of the

% maximum and ensures detection of preambles with low timing offset where

% noise has caused the peak of the correlation to be slightly into the

% previous preamble's timing window. The value configured below corresponds

% to the duration of the main lobe of the autocorrelation of the PRACH.

% (zero is used for the case that NCS=0 as there is only one preamble

% per correlation.)

if (zcz~=0)

deadzone=info.SamplingRate/(info.NZC*info.SubcarrierSpacing)/zcz;

else

deadzone=0;

end

I would be great if someone could help me out.

I am following a textbook named LTE:From theorey to practise but could not find anything about it.

It would be great if any refernce is provided to understand this.

BR,

Sri