mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/**
|
|
* Copyright 2013-2023 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsRAN.
|
|
*
|
|
* srsRAN is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsRAN is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSRAN_SCHED_NR_SIGNALLING_H
|
|
#define SRSRAN_SCHED_NR_SIGNALLING_H
|
|
|
|
#include "harq_softbuffer.h"
|
|
#include "sched_nr_cfg.h"
|
|
#include "sched_nr_interface.h"
|
|
#include "srsenb/hdr/stack/mac/sched_common.h"
|
|
|
|
namespace srsenb {
|
|
namespace sched_nr_impl {
|
|
|
|
class bwp_slot_allocator;
|
|
|
|
/// Schedule NZP-CSI-RS resources for given slot
|
|
void sched_nzp_csi_rs(srsran::const_span<srsran_csi_rs_nzp_set_t> nzp_csi_rs_sets,
|
|
const srsran_slot_cfg_t& slot_cfg,
|
|
nzp_csi_rs_list& csi_rs_list);
|
|
|
|
/**
|
|
* @brief Schedule grant for SSB.
|
|
*
|
|
* The functions schedules the SSB according to a given periodicity. This function is a simplified version of an
|
|
* SSB scheduler and has several hard-coded parameters.
|
|
*
|
|
* @param[in] sl_point Slot point carrying information about current slot.
|
|
* @param[in] ssb_periodicity Periodicity of SSB in ms.
|
|
* @param[in] mib MIB message content
|
|
* @param[out] ssb_list List of SSB messages to be sent to PHY.
|
|
*
|
|
* @remark This function a is basic scheduling function that uses the following simplified assumption:
|
|
* 1) Subcarrier spacing: 15kHz
|
|
* 2) Frequency below 3GHz
|
|
* 3) Position in Burst is 1000, i.e., Only the first SSB of the 4 opportunities gets scheduled
|
|
*/
|
|
void sched_ssb_basic(const slot_point& sl_point,
|
|
uint32_t ssb_periodicity,
|
|
const srsran_mib_nr_t& mib,
|
|
ssb_list& ssb_list);
|
|
|
|
/// Fill DCI fields with SIB info
|
|
bool fill_dci_sib(prb_interval interv, uint32_t sib_idx, const bwp_params_t& bwp_cfg, srsran_dci_dl_nr_t& dci);
|
|
|
|
/// For a given BWP and slot, schedule SSB, NZP CSI RS and SIBs
|
|
void sched_dl_signalling(bwp_slot_allocator& bwp_alloc);
|
|
|
|
/// scheduler for SIBs
|
|
class si_sched
|
|
{
|
|
public:
|
|
explicit si_sched(const bwp_params_t& bwp_cfg_);
|
|
|
|
void run_slot(bwp_slot_allocator& slot_alloc);
|
|
|
|
private:
|
|
const bwp_params_t* bwp_cfg = nullptr;
|
|
srslog::basic_logger& logger;
|
|
|
|
struct si_msg_ctxt_t {
|
|
// args
|
|
uint32_t n = 0; /// 0 for SIB1, n/index in schedulingInfoList in si-SchedulingInfo in SIB1
|
|
uint32_t len_bytes = 0; /// length in bytes of SIB1 / SI message
|
|
uint32_t win_len_slots = 0; /// window length in slots
|
|
uint32_t period_frames = 0; /// periodicity of SIB1/SI window in frames
|
|
|
|
// state
|
|
uint32_t n_tx = 0; /// nof transmissions of the same SIB1 / SI message
|
|
alloc_result result = alloc_result::invalid_coderate; /// last attempt to schedule SI
|
|
slot_point win_start; /// start of SI window, invalid if outside
|
|
srsran::unique_pool_ptr<tx_harq_softbuffer> si_softbuffer;
|
|
};
|
|
srsran::bounded_vector<si_msg_ctxt_t, 10> pending_sis; /// configured SIB1 and SI messages
|
|
};
|
|
|
|
} // namespace sched_nr_impl
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSRAN_SCHED_NR_SIGNALLING_H
|