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81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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* libLTE 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 Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser 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 <stdbool.h>
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#include <string.h>
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#include "prb.h"
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#include "lte/common/base.h"
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void prb_cp_ref(cf_t **input, cf_t **output, int offset, int nof_refs,
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int nof_prb, bool advance_output) {
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int i;
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int ref_interval = ((RE_X_RB / nof_refs) - 1);
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memcpy(*output, *input, offset * sizeof(cf_t));
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*input += offset;
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*output += offset;
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for (i = 0; i < nof_refs * nof_prb - 1; i++) {
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if (advance_output) {
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(*output)++;
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} else {
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(*input)++;
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}
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memcpy(*output, *input, ref_interval * sizeof(cf_t));
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*output += ref_interval;
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*input += ref_interval;
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}
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if (ref_interval - offset > 0) {
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if (advance_output) {
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(*output)++;
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} else {
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(*input)++;
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}
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memcpy(*output, *input, (ref_interval - offset) * sizeof(cf_t));
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*output += (ref_interval - offset);
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*input += (ref_interval - offset);
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}
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}
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void prb_cp(cf_t **input, cf_t **output, int nof_prb) {
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memcpy(*output, *input, sizeof(cf_t) * RE_X_RB * nof_prb);
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*input += nof_prb * RE_X_RB;
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*output += nof_prb * RE_X_RB;
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}
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void prb_put_ref_(cf_t **input, cf_t **output, int offset, int nof_refs,
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int nof_prb) {
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prb_cp_ref(input, output, offset, nof_refs, nof_prb, false);
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}
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void prb_get_ref_(cf_t **input, cf_t **output, int offset, int nof_refs,
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int nof_prb) {
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prb_cp_ref(input, output, offset, nof_refs, nof_prb, true);
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}
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