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NR UE Symbol based PDCCH processing

Open Sakthivel Velumani requested to merge NR_UE_pdcch_symbol_based_proc into develop
4 unresolved threads

Part of !2196 (closed)

  1. Refactor PDCCH PHY functions to take rxdataF of one OFDM symbol and produce LLR for each search space. The modified functions take rxdataF in a different format than that produced by nr_slot_fep(). So for now a memcpy is used to change the array structure. Once nr_slot_fep() is modified, this memcpy will no longer be needed and will be removed.
  2. Modify DCI functions to decode DCI in the last PDCCH symbol and inidcate to MAC once.
  3. Fix PDCCH monitoring for start symbol > 0.
  4. Fix multiple PDCCH monitoring within slot.

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  • The source branch is 2291 commits behind the target branch.
  • 2 commits and 1 merge commit will be added to develop.
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170 171
172 const int data_sc = 9; // 9 sub-carriers with data per PRB
171 173 int rb_count = 0;
172 int data_sc = 9; // 9 sub-carriers with data per PRB
173 for (int c_id = 0; c_id < number_of_candidates; c_id++) {
174 for (int symbol_idx = start_symbol; symbol_idx < start_symbol + coreset_time_dur; symbol_idx++) {
175 for (int cce_count = 0; cce_count < L[c_id]; cce_count++) {
174 for (int c_id = 0; c_id < number_of_candidates; c_id++ ) {
175 for (int symbol_idx = start_symbol; symbol_idx < start_symbol+coreset_time_dur; symbol_idx++) {
176 for (int cce_count = 0; cce_count < L[c_id]; cce_count ++) {
176 177 for (int k = 0; k < NR_NB_REG_PER_CCE / reg_bundle_size_L; k++) { // loop over REG bundles
177 178 int f = f_bundle_j_list_ord[c_id][k + NR_NB_REG_PER_CCE * cce_count / reg_bundle_size_L];
178 179 for (int rb = 0; rb < B_rb; rb++) { // loop over the RBs of the bundle
179 180 c16_t *out = e_rx + data_sc * rb_count;
180 c16_t *in = llr + (uint16_t)(f * B_rb + rb + symbol_idx * coreset_nbr_rb) * data_sc;
181 const c16_t *in = llr + (uint16_t)(f * B_rb + rb + symbol_idx * coreset_nbr_rb) * data_sc;
  • 299 304 #define NBR_RE_PER_RB_WITH_DMRS 12
    300 305 // after removing the 3 DMRS RE, the RB contains 9 RE with PDCCH
    301 306 #define NBR_RE_PER_RB_WITHOUT_DMRS 9
    307 // uint8_t rb_count_bit;
    308
    302 309 for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
    303 const c16_t *dl_ch0 = dl_ch_estimates[aarx] + frame_parms->ofdm_symbol_size * symbol;
    304 c16_t *rxFbase = rxdataF[aarx] + frame_parms->ofdm_symbol_size * symbol;
    310 const c16_t *dl_ch0 = &dl_ch_estimates[aarx][0];
  • 425 static void nr_pdcch_channel_compensation(const int32_t rx_size,
    426 const c16_t rxdataF_ext[][rx_size],
    427 const c16_t dl_ch_estimates_ext[][rx_size],
    428 c16_t rxdataF_comp[][rx_size],
    429 const NR_DL_FRAME_PARMS *frame_parms,
    430 const uint8_t output_shift,
    431 const uint32_t coreset_nbr_rb)
    430 432 {
    431 433 for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
    432 simde__m128i *dl_ch128 = (simde__m128i *)&dl_ch_estimates_ext[aarx][symbol * coreset_nbr_rb * 12];
    433 simde__m128i *rxdataF128 = (simde__m128i *)&rxdataF_ext[aarx][symbol * coreset_nbr_rb * 12];
    434 simde__m128i *rxdataF_comp128 = (simde__m128i *)&rxdataF_comp[aarx][symbol * coreset_nbr_rb * 12];
    435 //printf("ch compensation dl_ch ext addr %p \n", &dl_ch_estimates_ext[(aatx<<1)+aarx][symbol*20*12]);
    436 //printf("rxdataf ext addr %p symbol %d\n", &rxdataF_ext[aarx][symbol*20*12], symbol);
    437 //printf("rxdataf_comp addr %p\n",&rxdataF_comp[(aatx<<1)+aarx][symbol*20*12]);
    434 const simde__m128i *dl_ch128 = (simde__m128i *)&dl_ch_estimates_ext[aarx][0];
  • Sakthivel Velumani added 384 commits

    added 384 commits

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  • requested review from @lthomas

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