Create pf_dl function
This commit is contained in:
ChiehChun
committed by
Robert Schmidt
Robert Schmidt
parent
3b4ec2c82b
commit
68b03e9cb6
@@ -331,6 +331,216 @@ uint8_t getN_PRB_DMRS(NR_BWP_Downlink_t *bwp, int numDmrsCdmGrpsNoData) {
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}
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}
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void pf_dl(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot,
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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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NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info;
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/* Loop UE_info->list to check retransmission */
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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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/* get the PID of a HARQ process awaiting retrnasmission, or -1 otherwise */
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sched_ctrl->dl_harq_pid = sched_ctrl->retrans_dl_harq.head;
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const rnti_t rnti = UE_info->rnti[UE_id];
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/* Calculate Throughput */
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/* retransmission */
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if (sched_ctrl->dl_harq_pid >= 0) {
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/* Find a 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(sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /* dedicated */);
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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(): could not find CCE for UE %d\n", __func__, UE_id);
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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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/* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
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* allocation after CCE alloc fail would be more complex) */
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const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
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if (!alloc) {
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LOG_W(MAC,
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"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
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__func__,
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UE_id,
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rnti,
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frame,
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slot);
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UE_info->num_pdcch_cand[UE_id][cid]--;
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int *cce_list = RC.nrmac[module_id]->cce_list[sched_ctrl->active_bwp->bwp_Id][cid];
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for (int i = 0; i < sched_ctrl->aggregation_level; i++)
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cce_list[sched_ctrl->cce_index + i] = 0;
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return;
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}
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/* Allocate retransmission */
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NR_UE_ret_info_t *retInfo = &sched_ctrl->retInfo[sched_ctrl->dl_harq_pid];
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sched_ctrl->time_domain_allocation = retInfo->time_domain_allocation;
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/* ensure that there is a free place for RB allocation */
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int rbSize = 0;
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
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int rbStart = NRRIV2PRBOFFSET(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
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while (rbSize < retInfo->rbSize) {
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rbStart += rbSize; /* last iteration rbSize was not enough, skip it */
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rbSize = 0;
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while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
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if (rbStart >= bwpSize) {
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LOG_E(MAC,
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"cannot allocate retransmission for UE %d/RNTI %04x: no resources\n",
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UE_id,
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rnti);
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return;
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}
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while (rbStart + rbSize < bwpSize
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&& rballoc_mask[rbStart + rbSize]
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&& rbSize < retInfo->rbSize)
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rbSize++;
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}
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sched_ctrl->rbSize = retInfo->rbSize;
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sched_ctrl->rbStart = rbStart;
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/* MCS etc: just reuse from previous scheduling opportunity */
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sched_ctrl->mcsTableIdx = retInfo->mcsTableIdx;
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sched_ctrl->mcs = retInfo->mcs;
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sched_ctrl->numDmrsCdmGrpsNoData = retInfo->numDmrsCdmGrpsNoData;
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} else {
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/* Check DL buffer */
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/* Calculate coeff */
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/* Create UE_sched list for transmission*/
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}
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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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const uint16_t rnti = UE_info->rnti[UE_id];
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
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int rbStart = NRRIV2PRBOFFSET(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
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/* Loop UE_sched to find max coeff and allocate transmission */
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//while(n_rb_sched > 0 && UE_sched.head >= 0){
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if (sched_ctrl->dl_harq_pid < 0) { // temp
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/* Find max coeff from UE_sched*/
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/* Find a 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(sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /* dedicated */);
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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(): could not find CCE for UE %d\n", __func__, UE_id);
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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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/* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
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* allocation after CCE alloc fail would be more complex) */
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const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
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if (!alloc) {
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LOG_W(MAC,
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"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
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__func__,
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UE_id,
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rnti,
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frame,
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slot);
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UE_info->num_pdcch_cand[UE_id][cid]--;
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int *cce_list = RC.nrmac[module_id]->cce_list[sched_ctrl->active_bwp->bwp_Id][cid];
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for (int i = 0; i < sched_ctrl->aggregation_level; i++)
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cce_list[sched_ctrl->cce_index + i] = 0;
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return;
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}
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/* Allocate transmission */
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// Time-domain allocation
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sched_ctrl->time_domain_allocation = 2;
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// modulation scheme
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sched_ctrl->mcsTableIdx = 0;
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sched_ctrl->mcs = 9;
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sched_ctrl->numDmrsCdmGrpsNoData = 1;
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// Freq-demain allocation
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while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
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const uint8_t N_PRB_DMRS =
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getN_PRB_DMRS(sched_ctrl->active_bwp, sched_ctrl->numDmrsCdmGrpsNoData);
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const int nrOfSymbols = getNrOfSymbols(sched_ctrl->active_bwp,
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sched_ctrl->time_domain_allocation);
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const NR_ServingCellConfigCommon_t *scc = RC.nrmac[module_id]->common_channels->ServingCellConfigCommon;
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const uint8_t N_DMRS_SLOT = get_num_dmrs_symbols(
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sched_ctrl->active_bwp->bwp_Dedicated->pdsch_Config->choice.setup,
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scc->dmrs_TypeA_Position,
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nrOfSymbols);
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int rbSize = 0;
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uint32_t TBS = 0;
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const int oh = 2 + (sched_ctrl->num_total_bytes >= 256)
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+ 2 * (frame == (sched_ctrl->ta_frame + 10) % 1024);
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do {
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rbSize++;
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TBS = nr_compute_tbs(nr_get_Qm_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
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nr_get_code_rate_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
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rbSize,
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nrOfSymbols,
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N_PRB_DMRS * N_DMRS_SLOT,
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0 /* N_PRB_oh, 0 for initialBWP */,
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0 /* tb_scaling */,
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1 /* nrOfLayers */)
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>> 3;
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} while (rbStart + rbSize < bwpSize && rballoc_mask[rbStart + rbSize] && TBS < sched_ctrl->num_total_bytes + oh);
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sched_ctrl->rbSize = rbSize;
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sched_ctrl->rbStart = rbStart;
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n_rb_sched -= sched_ctrl->rbSize;
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/* mark the corresponding RBs as used */
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for (int rb = 0; rb < sched_ctrl->rbSize; rb++) {
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//vrb_map[rb + sched_ctrl->rbStart] = 1;
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rballoc_mask[rb + sched_ctrl->rbStart] = 0;
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}
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}
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}
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void nr_simple_dlsch_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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@@ -350,7 +560,6 @@ void nr_simple_dlsch_preprocessor(module_id_t module_id,
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/* Calculate num of RBG and RBG size from UE_id=0 */
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const uint16_t bwpSize = NRRIV2BW(sched_ctrl->active_bwp->bwp_Common->genericParameters.locationAndBandwidth, 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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uint16_t *vrb_map = RC.nrmac[module_id]->common_channels[CC_id].vrb_map;
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uint8_t rballoc_mask[bwpSize];
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@@ -389,135 +598,14 @@ void nr_simple_dlsch_preprocessor(module_id_t module_id,
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sched_ctrl->rlc_status[lcid].bytes_in_buffer,
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sched_ctrl->ta_apply);
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/* Find a 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(sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /*dedicated*/);
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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(): could not find CCE for UE %d\n", __func__, UE_id);
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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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/* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
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* allocation after CCE alloc fail would be more complex) */
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const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
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if (!alloc) {
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LOG_D(MAC,
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"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
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__func__,
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UE_id,
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rnti,
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frame,
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slot);
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UE_info->num_pdcch_cand[UE_id][cid]--;
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int *cce_list = RC.nrmac[module_id]->cce_list[sched_ctrl->active_bwp->bwp_Id][cid];
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for (int i = 0; i < sched_ctrl->aggregation_level; i++)
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cce_list[sched_ctrl->cce_index + i] = 0;
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return;
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}
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/* get the PID of a HARQ process awaiting retransmission, or -1 otherwise */
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sched_ctrl->dl_harq_pid = sched_ctrl->retrans_dl_harq.head;
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if (sched_ctrl->dl_harq_pid >= 0) { /* retransmission */
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NR_UE_ret_info_t *retInfo = &sched_ctrl->retInfo[sched_ctrl->dl_harq_pid];
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/* ensure that there is a free place for RB allocation */
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int rbSize = 0;
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while (rbSize < retInfo->rbSize) {
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rbStart += rbSize; /* last iteration rbSize was not enough, skip it */
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rbSize = 0;
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while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
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if (rbStart >= bwpSize) {
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LOG_D(MAC,
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"%4d.%2d cannot allocate retransmission for UE %d/RNTI %04x: no resources\n",
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frame,
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slot,
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UE_id,
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rnti);
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/* not enough resources: drop retransmission attempt and make a new
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* transmission instead */
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sched_ctrl->dl_harq_pid = -1;
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break;
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}
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while (rbStart + rbSize < bwpSize
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&& rballoc_mask[rbStart + rbSize]
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&& rbSize < retInfo->rbSize)
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rbSize++;
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}
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}
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if (sched_ctrl->dl_harq_pid >= 0) {
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/* this retransmission can be allocated (i.e., enough resources) */
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NR_UE_ret_info_t *retInfo = &sched_ctrl->retInfo[sched_ctrl->dl_harq_pid];
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sched_ctrl->time_domain_allocation = retInfo->time_domain_allocation;
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sched_ctrl->rbSize = retInfo->rbSize;
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sched_ctrl->rbStart = rbStart;
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/* MCS etc: just reuse from previous scheduling opportunity */
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sched_ctrl->mcsTableIdx = retInfo->mcsTableIdx;
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sched_ctrl->mcs = retInfo->mcs;
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sched_ctrl->numDmrsCdmGrpsNoData = retInfo->numDmrsCdmGrpsNoData;
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} else {
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// Time-domain allocation
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sched_ctrl->time_domain_allocation = 2;
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// modulation scheme
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sched_ctrl->mcsTableIdx = 0;
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sched_ctrl->mcs = 9;
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sched_ctrl->numDmrsCdmGrpsNoData = 1;
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// Freq-demain allocation
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while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
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uint8_t N_PRB_DMRS =
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getN_PRB_DMRS(sched_ctrl->active_bwp, sched_ctrl->numDmrsCdmGrpsNoData);
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int nrOfSymbols = getNrOfSymbols(sched_ctrl->active_bwp,
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sched_ctrl->time_domain_allocation);
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uint8_t N_DMRS_SLOT = get_num_dmrs_symbols(sched_ctrl->active_bwp->bwp_Dedicated->pdsch_Config->choice.setup,
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RC.nrmac[module_id]->common_channels->ServingCellConfigCommon->dmrs_TypeA_Position ,
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nrOfSymbols);
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int rbSize = 0;
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const int oh = 2 + (sched_ctrl->num_total_bytes >= 256)
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+ 2 * (frame == (sched_ctrl->ta_frame + 10) % 1024);
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uint32_t TBS = 0;
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do {
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rbSize++;
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TBS = nr_compute_tbs(nr_get_Qm_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
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nr_get_code_rate_dl(sched_ctrl->mcs, sched_ctrl->mcsTableIdx),
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rbSize,
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nrOfSymbols,
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N_PRB_DMRS * N_DMRS_SLOT,
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0 /* N_PRB_oh, 0 for initialBWP */,
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0 /* tb_scaling */,
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1 /* nrOfLayers */)
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>> 3;
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} while (rbStart + rbSize < bwpSize && rballoc_mask[rbStart + rbSize] && TBS < sched_ctrl->num_total_bytes + oh);
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sched_ctrl->rbSize = rbSize;
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sched_ctrl->rbStart = rbStart;
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}
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/* mark the corresponding RBs as used */
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for (int rb = 0; rb < sched_ctrl->rbSize; rb++) {
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vrb_map[rb + sched_ctrl->rbStart] = 1;
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rballoc_mask[rb + sched_ctrl->rbStart] = 0;
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}
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/* proportional fair scheduling algorithm */
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pf_dl(module_id,
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frame,
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slot,
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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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}
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void nr_schedule_ue_spec(module_id_t module_id,
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