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clean up zero forcing Rx

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This commit is contained in:
sfn
2022-01-25 12:04:20 +01:00
committed by Thomas Schlichter
parent 9ca7f14ce8
commit 8eae4bbfdc
1 changed files with 7 additions and 8 deletions
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openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c
+7 -8
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@@ -2314,14 +2314,13 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
nb_rb_0,
shift);
}
nr_construct_HhH_elements(conjH_H_elements[ctx*n_tx+rtx],
n_rx,
nb_rb_0);
nr_construct_HhH_elements(conjH_H_elements[ctx*n_tx+rtx],n_rx,nb_rb_0);
}
}
int16_t k,rr[n_tx-1],cc[n_tx-1];
int fpshift = 8;
//Allocate the matrix inv elements
int32_t ** inv_H_h_H;
inv_H_h_H = (int32_t **)malloc16_clear( n_tx*n_tx*sizeof(int32_t *) );
@@ -2330,6 +2329,7 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
inv_H_h_H[ctx*n_tx+rtx] = (int32_t *)malloc16_clear( 12*nb_rb*sizeof(int32_t) );
}
}
//Compute Inversion of the H^*H matrix
/* For 2x2 MIMO matrix, we compute
* |(conj_H_00xH_00+conj_H_10xH_10) (conj_H_00xH_01+conj_H_10xH_11)|
@@ -2406,7 +2406,7 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
nb_rb_0,
+1,
fpshift);//(64*2=2^7)/2^15
print_shorts(" nr_det_2x2 ",(int16_t*)&determ_fin[0]);
print_shorts("nr_det_2x2",(int16_t*)&determ_fin[0]);
}
else if(n_tx==3) {
nr_det_3x3(conjH_H_elements[0][0],//a11
@@ -2422,7 +2422,7 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
nb_rb,
+1,
fpshift);
print_shorts(" nr_det_3x3",(int16_t*)&determ_fin[0]);
print_shorts("nr_det_3x3",(int16_t*)&determ_fin[0]);
}
else if(n_tx==4) {
nr_det_4x4(conjH_H_elements,//
@@ -2430,10 +2430,9 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
nb_rb,
+1,
fpshift);
print_shorts(" nr_det_4x4",(int16_t*)&determ_fin[0]);
print_shorts("nr_det_4x4",(int16_t*)&determ_fin[0]);
}
// multiply Matrix inversion pf H_h_H by the rx signal vector
int32_t outtemp[12*nb_rb] __attribute__((aligned(32)));
int32_t **rxdataF_zforcing;
@@ -2477,7 +2476,7 @@ uint8_t nr_zero_forcing_rx(int **rxdataF_comp,
//Update LLR thresholds with the Matrix determinant
__m128i *dl_ch_mag128_0=NULL,*dl_ch_mag128b_0=NULL,*dl_ch_mag128r_0=NULL,*determ_fin_128;
__m128i mmtmpD2,mmtmpD3;
__m128i QAM_amp128={0},QAM_amp128b={0},QAM_amp128r={0};
__m128i QAM_amp128={0},QAM_amp128b={0},QAM_amp128r={0};
short nr_realpart[8]__attribute__((aligned(16))) = {1,0,1,0,1,0,1,0};
determ_fin_128 = (__m128i *)&determ_fin[0];