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88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <strings.h>
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#include "srslte/common/phy_common.h"
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#include "srslte/common/sequence.h"
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/**
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* 36.211 6.6.1
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*/
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int srslte_sequence_pbch(srslte_sequence_t *seq, srslte_cp_t cp, uint32_t cell_id) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, SRSLTE_CP_ISNORM(cp)?1920:1728, cell_id);
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}
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/**
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* 36.211 6.7.1
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*/
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int srslte_sequence_pcfich(srslte_sequence_t *seq, uint32_t nslot, uint32_t cell_id) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, 32, (nslot/2+1) * (2*cell_id + 1) * 512 + cell_id);
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}
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/**
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* 36.211 6.9.1
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*/
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int srslte_sequence_phich(srslte_sequence_t *seq, uint32_t nslot, uint32_t cell_id) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, 12, (nslot/2+1) * (2*cell_id + 1) * 512 + cell_id);
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}
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/**
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* 36.211 6.8.2
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*/
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int srslte_sequence_pdcch(srslte_sequence_t *seq, uint32_t nslot, uint32_t cell_id, uint32_t len) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, len, (nslot/2) * 512 + cell_id);
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}
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/**
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* 36.211 6.3.1
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*/
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int srslte_sequence_pdsch(srslte_sequence_t *seq, uint16_t rnti, int q, uint32_t nslot, uint32_t cell_id, uint32_t len) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, len, (rnti<<14) + (q<<13) + ((nslot/2)<<9) + cell_id);
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}
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/**
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* 36.211 5.3.1
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*/
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int srslte_sequence_pusch(srslte_sequence_t *seq, uint16_t rnti, uint32_t nslot, uint32_t cell_id, uint32_t len) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, len, (rnti<<14) + ((nslot/2)<<9) + cell_id);
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}
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/**
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* 36.211 5.4.2
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*/
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int srslte_sequence_pucch(srslte_sequence_t *seq, uint16_t rnti, uint32_t nslot, uint32_t cell_id) {
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bzero(seq, sizeof(srslte_sequence_t));
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return srslte_sequence_LTE_pr(seq, 20, ((((nslot/2)+1)*(2*cell_id+1))<<16)+rnti);
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}
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