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OpenXG-RAN
Commit 632bcce8 authored by zhenghuangkun's avatar zhenghuangkun
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Fix: rfsim abnormal CCCH reception.

parent d2c7a889
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Showing with 7 additions and 10 deletions
openair1/PHY/LTE_TRANSPORT/ulsch_demodulation.c
View file @ 632bcce8
...@@ -45,6 +45,7 @@ ...@@ -45,6 +45,7 @@
//extern int **ulchmag_eren; //extern int **ulchmag_eren;
//eren //eren
static short jitter[8] __attribute__ ((aligned(16))) = {1,0,0,1,0,1,1,0};
static short jitterc[8] __attribute__ ((aligned(16))) = {0,1,1,0,1,0,0,1}; static short jitterc[8] __attribute__ ((aligned(16))) = {0,1,1,0,1,0,0,1};
void lte_idft(LTE_DL_FRAME_PARMS *frame_parms,uint32_t *z, uint16_t Msc_PUSCH) { void lte_idft(LTE_DL_FRAME_PARMS *frame_parms,uint32_t *z, uint16_t Msc_PUSCH) {
...@@ -758,8 +759,6 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext, ...@@ -758,8 +759,6 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext,
uint8_t aarx;//,symbol_mod; uint8_t aarx;//,symbol_mod;
__m128i mmtmpU0,mmtmpU1,mmtmpU2,mmtmpU3; __m128i mmtmpU0,mmtmpU1,mmtmpU2,mmtmpU3;
static short ref_min[8] __attribute__ ((aligned(16))) = {SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN };
#elif defined(__arm__) #elif defined(__arm__)
int16x4_t *ul_ch128,*rxdataF128; int16x4_t *ul_ch128,*rxdataF128;
int16x8_t *ul_ch_mag128,*ul_ch_mag128b,*rxdataF_comp128; int16x8_t *ul_ch_mag128,*ul_ch_mag128b,*rxdataF_comp128;
...@@ -768,8 +767,6 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext, ...@@ -768,8 +767,6 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext,
int16_t conj[4]__attribute__((aligned(16))) = {1,-1,1,-1}; int16_t conj[4]__attribute__((aligned(16))) = {1,-1,1,-1};
int32x4_t output_shift128 = vmovq_n_s32(-(int32_t)output_shift); int32x4_t output_shift128 = vmovq_n_s32(-(int32_t)output_shift);
static short ref_min[8] __attribute__ ((aligned(16))) = {SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN ,SHRT_MIN };
#endif #endif
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) { for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
...@@ -877,9 +874,9 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext, ...@@ -877,9 +874,9 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext,
// print_shorts("ch:",ul_ch128[2]); // print_shorts("ch:",ul_ch128[2]);
// print_shorts("pack:",rxdataF_comp128[2]); // print_shorts("pack:",rxdataF_comp128[2]);
// Add a jitter to compensate for the saturation in "packs" resulting in a bias on the DC after IDFT // Add a jitter to compensate for the saturation in "packs" resulting in a bias on the DC after IDFT
rxdataF_comp128[0] = _mm_subs_epi16(rxdataF_comp128[0], _mm_cmpeq_epi16(rxdataF_comp128[0],(*(__m128i*)&ref_min[0]))); rxdataF_comp128[0] = _mm_add_epi16(rxdataF_comp128[0],(*(__m128i*)&jitter[0]));
rxdataF_comp128[1] = _mm_subs_epi16(rxdataF_comp128[1], _mm_cmpeq_epi16(rxdataF_comp128[1],(*(__m128i*)&ref_min[0]))); rxdataF_comp128[1] = _mm_add_epi16(rxdataF_comp128[1],(*(__m128i*)&jitter[0]));
rxdataF_comp128[2] = _mm_subs_epi16(rxdataF_comp128[2], _mm_cmpeq_epi16(rxdataF_comp128[2],(*(__m128i*)&ref_min[0]))); rxdataF_comp128[2] = _mm_add_epi16(rxdataF_comp128[2],(*(__m128i*)&jitter[0]));
ul_ch128+=3; ul_ch128+=3;
ul_ch_mag128+=3; ul_ch_mag128+=3;
...@@ -927,9 +924,9 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext, ...@@ -927,9 +924,9 @@ void ulsch_channel_compensation(int32_t **rxdataF_ext,
mmtmpU1 = vqshlq_s32(mmtmpU1,-output_shift128); mmtmpU1 = vqshlq_s32(mmtmpU1,-output_shift128);
rxdataF_comp128[2] = vcombine_s16(vmovn_s32(mmtmpU0),vmovn_s32(mmtmpU1)); rxdataF_comp128[2] = vcombine_s16(vmovn_s32(mmtmpU0),vmovn_s32(mmtmpU1));
// Add a jitter to compensate for the saturation in "packs" resulting in a bias on the DC after IDFT // Add a jitter to compensate for the saturation in "packs" resulting in a bias on the DC after IDFT
rxdataF_comp128[0] = vqsubq_s16(rxdataF_comp128[0], vceqq_s16(rxdataF_comp128[0],(*(int16x8_t*)&ref_min[0]))); rxdataF_comp128[0] = vqaddq_s16(rxdataF_comp128[0],(*(int16x8_t*)&jitter[0]));
rxdataF_comp128[1] = vqsubq_s16(rxdataF_comp128[1], vceqq_s16(rxdataF_comp128[1],(*(int16x8_t*)&ref_min[0]))); rxdataF_comp128[1] = vqaddq_s16(rxdataF_comp128[1],(*(int16x8_t*)&jitter[0]));
rxdataF_comp128[2] = vqsubq_s16(rxdataF_comp128[2], vceqq_s16(rxdataF_comp128[1],(*(int16x8_t*)&ref_min[0]))); rxdataF_comp128[2] = vqaddq_s16(rxdataF_comp128[2],(*(int16x8_t*)&jitter[0]));
ul_ch128+=6; ul_ch128+=6;
ul_ch_mag128+=3; ul_ch_mag128+=3;
......
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