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OpenXG-RAN
Commit 9686d42f authored by Matthieu Kanj's avatar Matthieu Kanj
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function update

parent 5ffb2386
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Showing with 7 additions and 5 deletions
openair1/PHY/LTE_ESTIMATION/lte_ul_channel_estimation_NB_IoT.c
View file @ 9686d42f
......@@ -100,6 +100,7 @@ void rotate_channel_sc_tmp_NB_IoT(int16_t *estimated_channel,
uint8_t l,
uint8_t Qm,
uint8_t counter_msg3,
uint16_t N_SF_per_word,
uint8_t flag)
{
int16_t e_phi_re[120] = {32767, 24811, 4807, -17531, -31357, -29956, -14010, 0, 21402, 32412, 27683, 9511, -13279, -29622, -32767, -24812, -4808, 17530, 31356, 29955, 14009, 0, -21403, -32413, -27684, -9512, 13278, 29621, 32767, 24811, 4807, -17531, -31357, -29956, -14010, 0, 21402, 32412, 27683, 9511, -13279, -29622, -32767, -24812, -4808, 17530, 31356, 29955, 14009, -1, -21403, -32413, -27684, -9512, 13278, 29621, 32767, 24811, 4807, -17531, -31357, -29956, -14010, 0, 21402, 32412, 27683, 9511, -13279, -29622, -32767, -24812, -4808, 17530, 31356, 29955, 14009, 0, -21403, -32413, -27684, -9512, 13278, 29621, 32767, 24811, 4807, -17531, -31357, -29956, -14010, -1, 21402, 32412, 27683, 9511, -13279, -29622, -32767, -24812, -4808, 17530, 31356, 29955, 14009, 0, -21403, -32413, -27684, -9512, 13278, 29621};
......@@ -138,10 +139,10 @@ void rotate_channel_sc_tmp_NB_IoT(int16_t *estimated_channel,
if(flag==0) // rotation of msg3
{
estimated_channel[k<<1] = (int16_t)(((int32_t)e_phi_re[14*(8-counter_msg3) + l] * (int32_t)est_channel_re2 +
(int32_t)e_phi_im[14*(8-counter_msg3) + l] * (int32_t)est_channel_im2)>>15);
estimated_channel[(k<<1)+1] = (int16_t)(((int32_t)e_phi_re[14*(8-counter_msg3) + l] * (int32_t)est_channel_im2 -
(int32_t)e_phi_im[14*(8-counter_msg3) + l] * (int32_t)est_channel_re2)>>15);
estimated_channel[k<<1] = (int16_t)(((int32_t)e_phi_re[14*(N_SF_per_word-counter_msg3) + l] * (int32_t)est_channel_re2 +
(int32_t)e_phi_im[14*(N_SF_per_word-counter_msg3) + l] * (int32_t)est_channel_im2)>>15);
estimated_channel[(k<<1)+1] = (int16_t)(((int32_t)e_phi_re[14*(N_SF_per_word-counter_msg3) + l] * (int32_t)est_channel_im2 -
(int32_t)e_phi_im[14*(N_SF_per_word-counter_msg3) + l] * (int32_t)est_channel_re2)>>15);
}
if(flag==1) // rotation of msg5
{
......@@ -324,7 +325,7 @@ int ul_chest_tmp_NB_IoT(int32_t **rxdataF_ext,
(int32_t)received_data[k<<1]*(int32_t)pilot_sig[(k<<1)+1])>>15); //imaginary part of estimated channel
}
rotate_channel_sc_tmp_NB_IoT(estimated_channel,symbol,Qm,counter_msg3,0); // 0 is used to indicate msg3
rotate_channel_sc_tmp_NB_IoT(estimated_channel,symbol,Qm,counter_msg3,N_SF_per_word,0); // 0 is used to indicate msg3
//printf("\n");
/*for (k=11;k<12;k++)
{
......
openair1/PHY/LTE_TRANSPORT/proto_NB_IoT.h
View file @ 9686d42f
......@@ -559,6 +559,7 @@ void rotate_channel_sc_tmp_NB_IoT(int16_t *estimated_channel,
uint8_t l,
uint8_t Qm,
uint8_t counter_msg3,
uint16_t N_SF_per_word,
uint8_t flag);
int ul_chequal_tmp_NB_IoT(int32_t **rxdataF_ext,
......
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