www.pudn.com > WCDMA.rar > gen_DPCCH_code.m

function y=gen_DPCCH_code(N_pilot) 
%************************************************************************ 
%function y=gen_DPCCH_code(N_pilot) 
% 
% Copyright 2002 The Mobile and Portable Radio Research Group 
% 
%Generates the a simplified version of the DPCCH code.  In this version, 
%the pilot symbols in dach slot are generated as directed by the WDCMA  
%specification, ETSI TS 125 211 V3.2.0 (2000-02).  However, the remainder 
%of the symbols are randomly generated. 
% 
%Parameters 
%   Input 
%      N_pilot   Scalar   Number of pilot symbols per slot 
%                         Must be an integer between 3 and 8 
% 
%   Output 
%      y         Vector   DPCCH code.  Contains 150 symbols 
% 
%************************************************************************ 
 
%Check to make sure that N_pilot is between 3 and 8 
if (N_pilot<3)|(N_pilot>8) 
   error(['N_pilot=',int2str(N_pilot),'!  N_pilot must be between 3 and 8']); 
end 
 
if N_pilot==3 
   y(1:10)=[1 1 1 round(rand(1,7))]; 
   y(11:20)=[0 0 1 round(rand(1,7))]; 
   y(21:30)=[0 1 1 round(rand(1,7))]; 
   y(31:40)=[0 0 1 round(rand(1,7))]; 
   y(41:50)=[1 0 1 round(rand(1,7))]; 
   y(51:60)=[1 1 1 round(rand(1,7))]; 
   y(61:70)=[1 1 1 round(rand(1,7))]; 
   y(71:80)=[1 0 1 round(rand(1,7))]; 
   y(81:90)=[0 1 1 round(rand(1,7))]; 
   y(91:100)=[1 1 1 round(rand(1,7))]; 
   y(101:110)=[0 1 1 round(rand(1,7))]; 
   y(111:120)=[1 0 1 round(rand(1,7))]; 
   y(121:130)=[1 0 1 round(rand(1,7))]; 
   y(131:140)=[0 0 1 round(rand(1,7))]; 
   y(141:150)=[0 0 1 round(rand(1,7))]; 
elseif N_pilot==4 
   y(1:10)=[1 1 1 1 round(rand(1,6))]; 
   y(11:20)=[1 0 0 1 round(rand(1,6))]; 
   y(21:30)=[1 0 1 1 round(rand(1,6))]; 
   y(31:40)=[1 0 0 1 round(rand(1,6))]; 
   y(41:50)=[1 1 0 1 round(rand(1,6))]; 
   y(51:60)=[1 1 1 1 round(rand(1,6))]; 
   y(61:70)=[1 1 1 1 round(rand(1,6))]; 
   y(71:80)=[1 1 0 1 round(rand(1,6))]; 
   y(81:90)=[1 0 1 1 round(rand(1,6))]; 
   y(91:100)=[1 1 1 1 round(rand(1,6))]; 
   y(101:110)=[1 0 1 1 round(rand(1,6))]; 
   y(111:120)=[1 1 0 1 round(rand(1,6))]; 
   y(121:130)=[1 1 0 1 round(rand(1,6))]; 
   y(131:140)=[1 0 0 1 round(rand(1,6))]; 
   y(141:150)=[1 0 0 1 round(rand(1,6))]; 
elseif N_pilot==5 
   y(1:10)=[1 1 1 1 0 round(rand(1,5))]; 
   y(11:20)=[0 0 1 1 0 round(rand(1,5))]; 
   y(21:30)=[0 1 1 0 1 round(rand(1,5))]; 
   y(31:40)=[0 0 1 0 0 round(rand(1,5))]; 
   y(41:50)=[1 0 1 0 1 round(rand(1,5))]; 
   y(51:60)=[1 1 1 1 0 round(rand(1,5))]; 
   y(61:70)=[1 1 1 0 0 round(rand(1,5))]; 
   y(71:80)=[1 0 1 0 0 round(rand(1,5))]; 
   y(81:90)=[0 1 1 1 0 round(rand(1,5))]; 
   y(91:100)=[1 1 1 1 1 round(rand(1,5))]; 
   y(101:110)=[0 1 1 0 1 round(rand(1,5))]; 
   y(111:120)=[1 0 1 1 1 round(rand(1,5))]; 
   y(121:130)=[1 0 1 0 0 round(rand(1,5))]; 
   y(131:140)=[0 0 1 1 1 round(rand(1,5))]; 
   y(141:150)=[0 0 1 1 1 round(rand(1,5))]; 
elseif N_pilot==6 
   y(1:10)=[1 1 1 1 1 0 round(rand(1,4))]; 
   y(11:20)=[1 0 0 1 1 0 round(rand(1,4))]; 
   y(21:30)=[1 0 1 1 0 1 round(rand(1,4))]; 
   y(31:40)=[1 0 0 1 0 0 round(rand(1,4))]; 
   y(41:50)=[1 1 0 1 0 1 round(rand(1,4))]; 
   y(51:60)=[1 1 1 1 1 0 round(rand(1,4))]; 
   y(61:70)=[1 1 1 1 0 0 round(rand(1,4))]; 
   y(71:80)=[1 1 0 1 0 0 round(rand(1,4))]; 
   y(81:90)=[1 0 1 1 1 0 round(rand(1,4))]; 
   y(91:100)=[1 1 1 1 1 1 round(rand(1,4))]; 
   y(101:110)=[1 0 1 1 0 1 round(rand(1,4))]; 
   y(111:120)=[1 1 0 1 1 1 round(rand(1,4))]; 
   y(121:130)=[1 1 0 1 0 0 round(rand(1,4))]; 
   y(131:140)=[1 0 0 1 1 1 round(rand(1,4))]; 
   y(141:150)=[1 0 0 1 1 1 round(rand(1,4))]; 
elseif N_pilot==7 
   y(1:10)=[1 1 1 1 1 0 1 round(rand(1,3))]; 
   y(11:20)=[1 0 0 1 1 0 1 round(rand(1,3))]; 
   y(21:30)=[1 0 1 1 0 1 1 round(rand(1,3))]; 
   y(31:40)=[1 0 0 1 0 0 1 round(rand(1,3))]; 
   y(41:50)=[1 1 0 1 0 1 1 round(rand(1,3))]; 
   y(51:60)=[1 1 1 1 1 0 1 round(rand(1,3))]; 
   y(61:70)=[1 1 1 1 0 0 1 round(rand(1,3))]; 
   y(71:80)=[1 1 0 1 0 0 1 round(rand(1,3))]; 
   y(81:90)=[1 0 1 1 1 0 1 round(rand(1,3))]; 
   y(91:100)=[1 1 1 1 1 1 1 round(rand(1,3))]; 
   y(101:110)=[1 0 1 1 0 1 1 round(rand(1,3))]; 
   y(111:120)=[1 1 0 1 1 1 1 round(rand(1,3))]; 
   y(121:130)=[1 1 0 1 0 0 1 round(rand(1,3))]; 
   y(131:140)=[1 0 0 1 1 1 1 round(rand(1,3))]; 
   y(141:150)=[1 0 0 1 1 1 1 round(rand(1,3))]; 
elseif N_pilot==8 
   y(1:10)=[1 1 1 1 1 1 1 0  round(rand(1,2))]; 
   y(11:20)=[1 0 1 0 1 1 1 0 round(rand(1,2))]; 
   y(21:30)=[1 0 1 1 1 0 1 1 round(rand(1,2))]; 
   y(31:40)=[1 0 1 0 1 0 1 0 round(rand(1,2))]; 
   y(41:50)=[1 1 1 0 1 0 1 1 round(rand(1,2))]; 
   y(51:60)=[1 1 1 1 1 1 1 0  round(rand(1,2))]; 
   y(61:70)=[1 1 1 1 1 0 1 0 round(rand(1,2))]; 
   y(71:80)=[1 1 1 0 1 0 1 0 round(rand(1,2))]; 
   y(81:90)=[1 0 1 1 1 1 1 0 round(rand(1,2))]; 
   y(91:100)=[1 1 1 1 1 1 1 1 round(rand(1,2))]; 
   y(101:110)=[1 0 1 1 1 0 1 1 round(rand(1,2))]; 
   y(111:120)=[1 1 1 0 1 1 1 1 round(rand(1,2))]; 
   y(121:130)=[1 1 1 0 1 0 1 0 round(rand(1,2))]; 
   y(131:140)=[1 0 1 0 1 1 1 1 round(rand(1,2))]; 
   y(141:150)=[1 0 1 0 1 1 1 1 round(rand(1,2))]; 
end 
 
y=-2*y+1;