Add pf_ul & pseudo code
This commit is contained in:
ChiehChun
committed by
Robert Schmidt
Robert Schmidt
parent
5573b8e18c
commit
8f988e384d
@@ -504,6 +504,143 @@ long get_K2(NR_BWP_Uplink_t *ubwp, int time_domain_assignment, int mu) {
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return 3;
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}
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void pf_ul(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot,
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int num_slots_per_tdd,
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NR_list_t *UE_list,
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int n_rb_sched,
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uint8_t *rballoc_mask,
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int max_num_ue) {
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const int UE_id = 0;
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const int CC_id = 0;
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const int tda = 1;
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NR_ServingCellConfigCommon_t *scc = RC.nrmac[module_id]->common_channels[CC_id].ServingCellConfigCommon;
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NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info;
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const int min_rb = 5;
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/* Loop UE_list to calculate throughput and coeff */
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for (int UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
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NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
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int rbStart = NRRIV2PRBOFFSET(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_ubwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
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/* Calculate throughput */
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/* RETRANSMISSION: Check retransmission */
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/* RETRANSMISSION: Find free CCE */
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/* RETRANSMISSION: Allocate retransmission*/
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/* Check BSR */
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/* Calculate coefficient*/
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}
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NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
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int rbStart = NRRIV2PRBOFFSET(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_ubwp->bwp_Common->genericParameters.locationAndBandwidth,275);
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/* Loop UE_sched to find max coeff and allocate transmission */
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//while (UE_sched.head > 0 && max_num_ue> 0 && n_rb_sched > 0)
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if (n_rb_sched > 0){ //temp
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/* Find max coeff */
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/* Find free CCE */
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const int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
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sched_ctrl->search_space = get_searchspace(sched_ctrl->active_bwp, target_ss);
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uint8_t nr_of_candidates;
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find_aggregation_candidates(&sched_ctrl->aggregation_level,
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&nr_of_candidates,
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sched_ctrl->search_space);
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sched_ctrl->coreset = get_coreset(
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sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /* dedicated */);
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const int cid = sched_ctrl->coreset->controlResourceSetId;
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const uint16_t Y = UE_info->Y[UE_id][cid][slot];
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const int m = UE_info->num_pdcch_cand[UE_id][cid];
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sched_ctrl->cce_index = allocate_nr_CCEs(RC.nrmac[module_id],
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sched_ctrl->active_bwp,
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sched_ctrl->coreset,
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sched_ctrl->aggregation_level,
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Y,
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m,
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nr_of_candidates);
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if (sched_ctrl->cce_index < 0) {
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LOG_E(MAC, "%s(): CCE list not empty, couldn't schedule PUSCH\n", __func__);
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return;
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}
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UE_info->num_pdcch_cand[UE_id][cid]++;
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/* Save PUSCH field */
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sched_ctrl->sched_pusch.time_domain_allocation = tda;
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const long f = sched_ctrl->search_space->searchSpaceType->choice.ue_Specific->dci_Formats;
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const int dci_format = f ? NR_UL_DCI_FORMAT_0_1 : NR_UL_DCI_FORMAT_0_0;
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const uint8_t num_dmrs_cdm_grps_no_data = 1;
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/* we want to avoid a lengthy deduction of DMRS and other parameters in
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* every TTI if we can save it, so check whether dci_format, TDA, or
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* num_dmrs_cdm_grps_no_data has changed and only then recompute */
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NR_sched_pusch_save_t *ps = &sched_ctrl->pusch_save;
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if (ps->time_domain_allocation != tda
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|| ps->dci_format != dci_format
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|| ps->num_dmrs_cdm_grps_no_data != num_dmrs_cdm_grps_no_data)
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nr_save_pusch_fields(scc,
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sched_ctrl->active_ubwp,
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dci_format,
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tda,
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num_dmrs_cdm_grps_no_data,
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ps);
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const int mcs = 9;
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NR_sched_pusch_t *sched_pusch = &sched_ctrl->sched_pusch;
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sched_pusch->mcs = mcs;
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/* Calculate TBS from MCS */
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sched_pusch->R = nr_get_code_rate_ul(mcs, ps->mcs_table);
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sched_pusch->Qm = nr_get_Qm_ul(mcs, ps->mcs_table);
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if (ps->pusch_Config->tp_pi2BPSK
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&& ((ps->mcs_table == 3 && mcs < 2) || (ps->mcs_table == 4 && mcs < 6))) {
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sched_pusch->R >>= 1;
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sched_pusch->Qm <<= 1;
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}
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while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
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sched_pusch->rbStart = rbStart;
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if (rbStart + min_rb >= bwpSize) {
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LOG_W(MAC, "cannot allocate UL data for UE %d/RNTI %04x: no resources\n",
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UE_id, UE_info->rnti[UE_id]);
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return;
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}
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/* Calculate the current scheduling bytes */
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const int B = cmax(sched_ctrl->estimated_ul_buffer - sched_ctrl->sched_ul_bytes, 0);
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uint16_t rbSize = min_rb - 1;
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do {
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rbSize++;
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sched_pusch->rbSize = rbSize;
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sched_pusch->tb_size = nr_compute_tbs(sched_pusch->Qm,
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sched_pusch->R,
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sched_pusch->rbSize,
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ps->nrOfSymbols,
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ps->N_PRB_DMRS * ps->num_dmrs_symb,
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0, // nb_rb_oh
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0,
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1 /* NrOfLayers */)
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>> 3;
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} while (rbStart + rbSize < bwpSize && rballoc_mask[rbStart+rbSize] &&
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sched_pusch->tb_size < B);
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LOG_D(MAC,"rbSize %d, TBS %d, est buf %d, sched_ul %d, B %d\n",
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rbSize, sched_pusch->tb_size, sched_ctrl->estimated_ul_buffer, sched_ctrl->sched_ul_bytes, B);
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/* Mark the corresponding RBs as used */
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for (int rb = 0; rb < sched_ctrl->sched_pusch.rbSize; rb++)
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rballoc_mask[rb + sched_ctrl->sched_pusch.rbStart] = 0;
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}
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}
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bool nr_simple_ulsch_preprocessor(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot,
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@@ -533,6 +670,7 @@ bool nr_simple_ulsch_preprocessor(module_id_t module_id,
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"time domain assignment %d >= %d\n",
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tda,
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tdaList->list.count);
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int K2 = get_K2(sched_ctrl->active_ubwp, tda, mu);
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const int sched_frame = frame + (slot + K2 >= num_slots_per_tdd);
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const int sched_slot = (slot + K2) % num_slots_per_tdd;
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@@ -553,65 +691,9 @@ bool nr_simple_ulsch_preprocessor(module_id_t module_id,
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sched_ctrl->sched_pusch.frame = sched_frame;
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}
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const int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
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sched_ctrl->search_space = get_searchspace(sched_ctrl->active_bwp, target_ss);
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uint8_t nr_of_candidates;
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find_aggregation_candidates(&sched_ctrl->aggregation_level,
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&nr_of_candidates,
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sched_ctrl->search_space);
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sched_ctrl->coreset = get_coreset(
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sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /* dedicated */);
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const int cid = sched_ctrl->coreset->controlResourceSetId;
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const uint16_t Y = UE_info->Y[UE_id][cid][slot];
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const int m = UE_info->num_pdcch_cand[UE_id][cid];
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sched_ctrl->cce_index = allocate_nr_CCEs(RC.nrmac[module_id],
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sched_ctrl->active_bwp,
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sched_ctrl->coreset,
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sched_ctrl->aggregation_level,
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Y,
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m,
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nr_of_candidates);
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if (sched_ctrl->cce_index < 0) {
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LOG_D(MAC, "%s(): CCE list not empty, couldn't schedule PUSCH\n", __func__);
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return false;
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}
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UE_info->num_pdcch_cand[UE_id][cid]++;
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sched_ctrl->sched_pusch.time_domain_allocation = tda;
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const long f = sched_ctrl->search_space->searchSpaceType->choice.ue_Specific->dci_Formats;
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const int dci_format = f ? NR_UL_DCI_FORMAT_0_1 : NR_UL_DCI_FORMAT_0_0;
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const uint8_t num_dmrs_cdm_grps_no_data = 1;
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/* we want to avoid a lengthy deduction of DMRS and other parameters in
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* every TTI if we can save it, so check whether dci_format, TDA, or
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* num_dmrs_cdm_grps_no_data has changed and only then recompute */
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NR_sched_pusch_save_t *ps = &sched_ctrl->pusch_save;
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if (ps->time_domain_allocation != tda
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|| ps->dci_format != dci_format
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|| ps->num_dmrs_cdm_grps_no_data != num_dmrs_cdm_grps_no_data)
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nr_save_pusch_fields(scc,
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sched_ctrl->active_ubwp,
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dci_format,
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tda,
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num_dmrs_cdm_grps_no_data,
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ps);
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const int mcs = 9;
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NR_sched_pusch_t *sched_pusch = &sched_ctrl->sched_pusch;
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sched_pusch->mcs = mcs;
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/* Calculate TBS from MCS */
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sched_pusch->R = nr_get_code_rate_ul(mcs, ps->mcs_table);
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sched_pusch->Qm = nr_get_Qm_ul(mcs, ps->mcs_table);
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if (ps->pusch_Config->tp_pi2BPSK
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&& ((ps->mcs_table == 3 && mcs < 2) || (ps->mcs_table == 4 && mcs < 6))) {
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sched_pusch->R >>= 1;
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sched_pusch->Qm <<= 1;
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}
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/* Change vrb_map_UL to rballoc_mask */
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uint16_t *vrb_map_UL =
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&RC.nrmac[module_id]->common_channels[CC_id].vrb_map_UL[sched_slot * MAX_BWP_SIZE];
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int rbStart = NRRIV2PRBOFFSET(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_ubwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
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uint8_t rballoc_mask[bwpSize];
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int n_rb_sched = 0;
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@@ -622,32 +704,15 @@ bool nr_simple_ulsch_preprocessor(module_id_t module_id,
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n_rb_sched += rballoc_mask[i];
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}
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while (rbStart < bwpSize && vrb_map_UL[rbStart]) rbStart++;
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uint16_t rbSize = 4;
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sched_pusch->rbStart = rbStart;
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const int B = cmax(sched_ctrl->estimated_ul_buffer - sched_ctrl->sched_ul_bytes, 0);
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do {
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rbSize++;
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sched_pusch->rbSize = rbSize;
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sched_pusch->tb_size = nr_compute_tbs(sched_pusch->Qm,
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sched_pusch->R,
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sched_pusch->rbSize,
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ps->nrOfSymbols,
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ps->N_PRB_DMRS * ps->num_dmrs_symb,
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0, // nb_rb_oh
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0,
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1 /* NrOfLayers */)
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>> 3;
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} while (rbStart + rbSize < bwpSize && rballoc_mask[rbStart+rbSize] &&
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sched_pusch->tb_size < B);
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LOG_D(MAC,"rbSize %d, TBS %d, est buf %d, sched_ul %d, B %d\n",
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rbSize, sched_pusch->tb_size, sched_ctrl->estimated_ul_buffer, sched_ctrl->sched_ul_bytes, B);
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/* mark the corresponding RBs as used */
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for (int rb = 0; rb < sched_ctrl->sched_pusch.rbSize; rb++)
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rballoc_mask[rb + sched_ctrl->sched_pusch.rbStart] = 0;
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/* proportional fair scheduling algorithm */
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pf_ul(module_id,
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frame,
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slot,
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num_slots_per_tdd,
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&UE_info->list,
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n_rb_sched,
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rballoc_mask,
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2);
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return true;
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}
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