514 lines
21 KiB
C
514 lines
21 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file mac_proto.h
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* \brief MAC functions prototypes for gNB
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* \author Navid Nikaein and Raymond Knopp, WEI-TAI CHEN
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* \date 2010 - 2014, 2018
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* \email navid.nikaein@eurecom.fr, kroempa@gmail.com
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* \version 1.0
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* \company Eurecom, NTUST
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*/
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#ifndef __LAYER2_NR_MAC_PROTO_H__
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#define __LAYER2_NR_MAC_PROTO_H__
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#include "LAYER2/NR_MAC_gNB/nr_mac_gNB.h"
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#include "NR_TAG-Id.h"
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void set_cset_offset(uint16_t);
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void mac_top_init_gNB(ngran_node_t node_type);
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void config_common(int Mod_idP,
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int pdsch_AntennaPorts,
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int pusch_AntennaPorts,
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NR_ServingCellConfigCommon_t *scc);
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int nr_mac_enable_ue_rrc_processing_timer(module_id_t Mod_idP,
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rnti_t rnti,
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NR_SubcarrierSpacing_t subcarrierSpacing,
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uint32_t rrc_reconfiguration_delay);
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int rrc_mac_config_req_gNB(module_id_t Mod_idP,
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rrc_pdsch_AntennaPorts_t pdsch_AntennaPorts,
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int pusch_AntennaPorts,
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int sib1_tda,
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int minRXTXTIMEpdsch,
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NR_ServingCellConfigCommon_t *scc,
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NR_BCCH_BCH_Message_t *mib,
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NR_BCCH_DL_SCH_Message_t *sib1,
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int add_ue,
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uint32_t rnti,
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NR_CellGroupConfig_t *CellGroup);
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void clear_nr_nfapi_information(gNB_MAC_INST * gNB,
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int CC_idP,
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frame_t frameP,
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sub_frame_t subframeP);
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void nr_mac_update_timers(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot);
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void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
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frame_t frame_rxP, sub_frame_t slot_rxP);
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void schedule_nr_bwp_switch(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot);
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/* \brief main DL scheduler function. Calls a preprocessor to decide on
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* resource allocation, then "post-processes" resource allocation (nFAPI
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* messages, statistics, HARQ handling, CEs, ... */
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void nr_schedule_ue_spec(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot);
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uint32_t schedule_control_sib1(module_id_t module_id,
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int CC_id,
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NR_Type0_PDCCH_CSS_config_t *type0_PDCCH_CSS_config,
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int time_domain_allocation,
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NR_pdsch_dmrs_t *dmrs_parms,
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NR_pdsch_tda_info_t *tda_info,
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uint8_t candidate_idx,
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uint16_t num_total_bytes);
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/* \brief default FR1 DL preprocessor init routine, returns preprocessor to call */
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nr_pp_impl_dl nr_init_fr1_dlsch_preprocessor(module_id_t module_id, int CC_id);
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void schedule_nr_sib1(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP);
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void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
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/* \brief main UL scheduler function. Calls a preprocessor to decide on
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* resource allocation, then "post-processes" resource allocation (nFAPI
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* messages, statistics, HARQ handling, ... */
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void nr_schedule_ulsch(module_id_t module_id, frame_t frame, sub_frame_t slot);
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/* \brief default FR1 UL preprocessor init routine, returns preprocessor to call */
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nr_pp_impl_ul nr_init_fr1_ulsch_preprocessor(module_id_t module_id, int CC_id);
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/////// Random Access MAC-PHY interface functions and primitives ///////
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void nr_schedule_RA(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
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/* \brief Function to indicate a received preamble on PRACH. It initiates the RA procedure.
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@param module_idP Instance ID of gNB
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@param preamble_index index of the received RA request
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@param slotP Slot number on which to act
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@param timing_offset Offset in samples of the received PRACH w.r.t. eNB timing. This is used to
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@param rnti RA rnti corresponding to this PRACH preamble
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@param rach_resource type (0=non BL/CE,1 CE level 0,2 CE level 1, 3 CE level 2,4 CE level 3)
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*/
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void nr_initiate_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP,
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uint16_t preamble_index, uint8_t freq_index, uint8_t symbol, int16_t timing_offset);
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void nr_clear_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP, NR_RA_t *ra);
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int nr_allocate_CCEs(int module_idP, int CC_idP, frame_t frameP, sub_frame_t slotP, int test_only);
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void nr_get_Msg3alloc(module_id_t module_id,
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int CC_id,
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NR_ServingCellConfigCommon_t *scc,
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sub_frame_t current_subframe,
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frame_t current_frame,
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NR_RA_t *ra,
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int16_t *tdd_beam_association);
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void nr_generate_Msg3_retransmission(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP, NR_RA_t *ra);
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/* \brief Function in gNB to fill RAR pdu when requested by PHY.
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@param ra Instance of RA resources of gNB
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@param dlsch_buffer Pointer to RAR input buffer
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@param N_RB_UL Number of UL resource blocks
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*/
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void nr_fill_rar(uint8_t Mod_idP,
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NR_RA_t * ra,
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uint8_t * dlsch_buffer,
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nfapi_nr_pusch_pdu_t *pusch_pdu);
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void fill_msg3_pusch_pdu(nfapi_nr_pusch_pdu_t *pusch_pdu,
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NR_ServingCellConfigCommon_t *scc,
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int round,
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int startSymbolAndLength,
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rnti_t rnti, int scs,
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int bwp_size, int bwp_start,
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int mappingtype, int fh,
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int msg3_first_rb, int msg3_nb_rb);
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void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
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uint16_t nr_mac_compute_RIV(uint16_t N_RB_DL, uint16_t RBstart, uint16_t Lcrbs);
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/////// Phy test scheduler ///////
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/* \brief preprocessor for phytest: schedules UE_id 0 with fixed MCS on all
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* freq resources */
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void nr_preprocessor_phytest(module_id_t module_id,
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frame_t frame,
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sub_frame_t slot);
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/* \brief UL preprocessor for phytest: schedules UE_id 0 with fixed MCS on a
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* fixed set of resources */
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bool nr_ul_preprocessor_phytest(module_id_t module_id, frame_t frame, sub_frame_t slot);
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void nr_schedule_css_dlsch_phytest(module_id_t module_idP,
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frame_t frameP,
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sub_frame_t subframeP);
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void handle_nr_uci_pucch_0_1(module_id_t mod_id,
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frame_t frame,
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sub_frame_t slot,
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const nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_01);
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void handle_nr_uci_pucch_2_3_4(module_id_t mod_id,
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frame_t frame,
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sub_frame_t slot,
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const nfapi_nr_uci_pucch_pdu_format_2_3_4_t *uci_234);
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void config_uldci(const NR_SIB1_t *sib1,
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const NR_ServingCellConfigCommon_t *scc,
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const nfapi_nr_pusch_pdu_t *pusch_pdu,
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dci_pdu_rel15_t *dci_pdu_rel15,
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int time_domain_assignment,
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uint8_t tpc,
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NR_UE_UL_BWP_t *ul_bwp);
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void nr_schedule_pucch(gNB_MAC_INST *nrmac,
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frame_t frameP,
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sub_frame_t slotP);
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void nr_schedule_srs(int module_id, frame_t frame);
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void nr_csirs_scheduling(int Mod_idP,
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frame_t frame,
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sub_frame_t slot,
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int n_slots_frame);
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void nr_csi_meas_reporting(int Mod_idP,
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frame_t frameP,
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sub_frame_t slotP);
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int nr_acknack_scheduling(int Mod_idP,
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NR_UE_info_t *UE,
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frame_t frameP,
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sub_frame_t slotP,
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int r_pucch,
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int do_common);
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void get_pdsch_to_harq_feedback(NR_PUCCH_Config_t *pucch_Config,
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nr_dci_format_t dci_format,
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int *max_fb_time,
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uint8_t *pdsch_to_harq_feedback);
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void nr_configure_css_dci_initial(nfapi_nr_dl_tti_pdcch_pdu_rel15_t* pdcch_pdu,
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nr_scs_e scs_common,
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nr_scs_e pdcch_scs,
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frequency_range_t freq_range,
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uint8_t rmsi_pdcch_config,
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uint8_t ssb_idx,
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uint8_t k_ssb,
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uint16_t sfn_ssb,
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uint8_t n_ssb,
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uint16_t nb_slots_per_frame,
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uint16_t N_RB);
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/*
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int nr_is_dci_opportunity(nfapi_nr_search_space_t search_space,
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nfapi_nr_coreset_t coreset,
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uint16_t frame,
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uint16_t slot,
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nfapi_nr_config_request_scf_t cfg);
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*/
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int nr_get_pucch_resource(NR_ControlResourceSet_t *coreset,
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NR_PUCCH_Config_t *pucch_Config,
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int CCEIndex);
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void nr_configure_pucch(nfapi_nr_pucch_pdu_t* pucch_pdu,
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NR_ServingCellConfigCommon_t *scc,
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NR_UE_info_t* UE,
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uint8_t pucch_resource,
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uint16_t O_csi,
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uint16_t O_ack,
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uint8_t O_sr,
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int r_pucch);
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void find_search_space(int ss_type,
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NR_BWP_Downlink_t *bwp,
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NR_SearchSpace_t *ss);
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void nr_configure_pdcch(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu,
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NR_ControlResourceSet_t *coreset,
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bool is_sib1,
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NR_sched_pdcch_t *pdcch);
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NR_sched_pdcch_t set_pdcch_structure(gNB_MAC_INST *gNB_mac,
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NR_SearchSpace_t *ss,
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NR_ControlResourceSet_t *coreset,
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NR_ServingCellConfigCommon_t *scc,
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NR_BWP_t *bwp,
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NR_Type0_PDCCH_CSS_config_t *type0_PDCCH_CSS_config);
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int find_pdcch_candidate(gNB_MAC_INST *mac,
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int cc_id,
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int aggregation,
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int nr_of_candidates,
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NR_sched_pdcch_t *pdcch,
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NR_ControlResourceSet_t *coreset,
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uint32_t Y);
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void fill_pdcch_vrb_map(gNB_MAC_INST *mac,
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int CC_id,
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NR_sched_pdcch_t *pdcch,
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int first_cce,
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int aggregation);
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void fill_dci_pdu_rel15(const NR_ServingCellConfigCommon_t *scc,
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const NR_CellGroupConfig_t *CellGroup,
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const NR_UE_DL_BWP_t *dl_bwp,
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nfapi_nr_dl_dci_pdu_t *pdcch_dci_pdu,
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dci_pdu_rel15_t *dci_pdu_rel15,
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int dci_formats,
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int rnti_types,
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int N_RB,
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int bwp_id,
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NR_ControlResourceSet_t *coreset,
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uint16_t cset0_bwp_size);
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void prepare_dci(const NR_CellGroupConfig_t *CellGroup,
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const NR_UE_DL_BWP_t *dl_bwp,
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const NR_ControlResourceSet_t *coreset,
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dci_pdu_rel15_t *dci_pdu_rel15,
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nr_dci_format_t format);
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void set_r_pucch_parms(int rsetindex,
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int r_pucch,
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int bwp_size,
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int *prb_start,
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int *second_hop_prb,
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int *nr_of_symbols,
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int *start_symbol_index);
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/* find coreset within the search space */
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NR_ControlResourceSet_t *get_coreset(gNB_MAC_INST *nrmac,
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NR_ServingCellConfigCommon_t *scc,
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void *bwp,
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NR_SearchSpace_t *ss,
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NR_SearchSpace__searchSpaceType_PR ss_type);
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/* find a search space within a BWP */
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NR_SearchSpace_t *get_searchspace(NR_ServingCellConfigCommon_t *scc,
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NR_BWP_DownlinkDedicated_t *bwp_Dedicated,
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NR_SearchSpace__searchSpaceType_PR target_ss);
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long get_K2(NR_PUSCH_TimeDomainResourceAllocationList_t *tdaList,
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int time_domain_assignment,
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int mu);
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void nr_get_pdsch_tda_info(const NR_UE_DL_BWP_t *dl_bwp,
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int tda,
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NR_pdsch_tda_info_t *tda_info);
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void nr_set_pusch_semi_static(const NR_UE_UL_BWP_t *ul_bwp,
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const NR_ServingCellConfigCommon_t *scc,
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int tda,
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uint8_t nrOfLayers,
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NR_pusch_semi_static_t *ps);
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uint8_t nr_get_tpc(int target, uint8_t cqi, int incr);
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int get_spf(nfapi_nr_config_request_scf_t *cfg);
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int to_absslot(nfapi_nr_config_request_scf_t *cfg,int frame,int slot);
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int get_nrofHARQ_ProcessesForPDSCH(e_NR_PDSCH_ServingCellConfig__nrofHARQ_ProcessesForPDSCH n);
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void nr_get_tbs_dl(nfapi_nr_dl_tti_pdsch_pdu *pdsch_pdu,
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int x_overhead,
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uint8_t numdmrscdmgroupnodata,
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uint8_t tb_scaling);
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int NRRIV2BW(int locationAndBandwidth,int N_RB);
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int NRRIV2PRBOFFSET(int locationAndBandwidth,int N_RB);
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/* Functions to manage an NR_list_t */
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void create_nr_list(NR_list_t *listP, int len);
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void resize_nr_list(NR_list_t *list, int new_len);
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void destroy_nr_list(NR_list_t *list);
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void add_nr_list(NR_list_t *listP, int id);
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void remove_nr_list(NR_list_t *listP, int id);
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void add_tail_nr_list(NR_list_t *listP, int id);
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void add_front_nr_list(NR_list_t *listP, int id);
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void remove_front_nr_list(NR_list_t *listP);
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NR_UE_info_t * find_nr_UE(NR_UEs_t* UEs, rnti_t rntiP);
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int find_nr_RA_id(module_id_t mod_idP, int CC_idP, rnti_t rntiP);
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void configure_UE_BWP(gNB_MAC_INST *nr_mac,
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NR_ServingCellConfigCommon_t *scc,
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NR_UE_sched_ctrl_t *sched_ctrl,
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NR_RA_t *ra,
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NR_UE_info_t *UE);
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NR_UE_info_t* add_new_nr_ue(gNB_MAC_INST *nr_mac, rnti_t rntiP, NR_CellGroupConfig_t *CellGroup);
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void mac_remove_nr_ue(gNB_MAC_INST *nr_mac, rnti_t rnti);
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void nr_mac_remove_ra_rnti(module_id_t mod_id, rnti_t rnti);
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int nr_get_default_pucch_res(int pucch_ResourceCommon);
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int get_dlscs(nfapi_nr_config_request_t *cfg);
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int get_ulscs(nfapi_nr_config_request_t *cfg);
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int get_symbolsperslot(nfapi_nr_config_request_t *cfg);
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int nr_write_ce_dlsch_pdu(module_id_t module_idP,
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const NR_UE_sched_ctrl_t *ue_sched_ctl,
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unsigned char *mac_pdu,
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unsigned char drx_cmd,
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unsigned char *ue_cont_res_id);
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void nr_generate_Msg2(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP, NR_RA_t *ra);
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void nr_generate_Msg4(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP, NR_RA_t *ra);
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void nr_check_Msg4_Ack(module_id_t module_id, int CC_id, frame_t frame, sub_frame_t slot, NR_RA_t *ra);
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int binomial(int n, int k);
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bool is_xlsch_in_slot(uint64_t bitmap, sub_frame_t slot);
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void fill_ssb_vrb_map (NR_COMMON_channels_t *cc, int rbStart, int ssb_subcarrier_offset, uint16_t symStart, int CC_id);
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/* \brief Function to indicate a received SDU on ULSCH.
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@param Mod_id Instance ID of gNB
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@param CC_id Component carrier index
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@param rnti RNTI of UE transmitting the SDU
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@param sdu Pointer to received SDU
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@param sdu_len Length of SDU
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@param timing_advance timing advance adjustment after this pdu
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@param ul_cqi Uplink CQI estimate after this pdu (SNR quantized to 8 bits, -64 ... 63.5 dB in .5dB steps)
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*/
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void nr_rx_sdu(const module_id_t gnb_mod_idP,
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const int CC_idP,
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const frame_t frameP,
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const sub_frame_t subframeP,
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const rnti_t rntiP,
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uint8_t * sduP,
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const uint16_t sdu_lenP,
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const uint16_t timing_advance,
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const uint8_t ul_cqi,
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const uint16_t rssi);
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void create_dl_harq_list(NR_UE_sched_ctrl_t *sched_ctrl,
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const NR_PDSCH_ServingCellConfig_t *pdsch);
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void reset_dl_harq_list(NR_UE_sched_ctrl_t *sched_ctrl);
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void reset_ul_harq_list(NR_UE_sched_ctrl_t *sched_ctrl);
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void handle_nr_ul_harq(const int CC_idP,
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module_id_t mod_id,
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frame_t frame,
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sub_frame_t slot,
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const nfapi_nr_crc_t *crc_pdu);
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void handle_nr_srs_measurements(const module_id_t module_id,
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const frame_t frame,
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const sub_frame_t slot,
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const rnti_t rnti,
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const uint16_t timing_advance,
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const uint8_t num_symbols,
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const uint8_t wide_band_snr,
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const uint8_t num_reported_symbols,
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nfapi_nr_srs_indication_reported_symbol_t* reported_symbol_list);
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int16_t ssb_index_from_prach(module_id_t module_idP,
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frame_t frameP,
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sub_frame_t slotP,
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uint16_t preamble_index,
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uint8_t freq_index,
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uint8_t symbol);
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void find_SSB_and_RO_available(module_id_t module_idP);
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void set_dl_dmrs_params(NR_pdsch_dmrs_t *dmrs,
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const NR_ServingCellConfigCommon_t *scc,
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NR_UE_DL_BWP_t *BWP,
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NR_pdsch_tda_info_t *tda_info,
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int Layers);
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uint16_t set_pm_index(NR_UE_info_t *UE,
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NR_UE_sched_ctrl_t *sched_ctrl,
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int layers,
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int xp_pdsch_antenna_ports);
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uint8_t get_mcs_from_cqi(int mcs_table, int cqi_table, int cqi_idx);
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uint8_t get_dl_nrOfLayers(NR_UE_sched_ctrl_t *sched_ctrl, nr_dci_format_t dci_format);
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const int get_dl_tda(const gNB_MAC_INST *nrmac, const NR_ServingCellConfigCommon_t *scc, int slot);
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const int get_ul_tda(const gNB_MAC_INST *nrmac, const NR_ServingCellConfigCommon_t *scc, int slot);
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bool find_free_CCE(sub_frame_t slot, NR_UE_info_t *UE);
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bool nr_find_nb_rb(uint16_t Qm,
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uint16_t R,
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uint8_t nrOfLayers,
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uint16_t nb_symb_sch,
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uint16_t nb_dmrs_prb,
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uint32_t bytes,
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uint16_t nb_rb_min,
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uint16_t nb_rb_max,
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uint32_t *tbs,
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uint16_t *nb_rb);
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int get_mcs_from_bler(const NR_bler_options_t *bler_options,
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const NR_mac_dir_stats_t *stats,
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NR_bler_stats_t *bler_stats,
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int max_mcs,
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frame_t frame);
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void UL_tti_req_ahead_initialization(gNB_MAC_INST * gNB, NR_ServingCellConfigCommon_t *scc, int n, int CCid);
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void nr_sr_reporting(gNB_MAC_INST *nrmac, frame_t frameP, sub_frame_t slotP);
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size_t dump_mac_stats(gNB_MAC_INST *gNB, char *output, size_t strlen, bool reset_rsrp);
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void process_CellGroup(NR_CellGroupConfig_t *CellGroup, NR_UE_sched_ctrl_t *sched_ctrl);
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void send_initial_ul_rrc_message(module_id_t module_id,
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int CC_id,
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const NR_UE_info_t *UE,
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rb_id_t srb_id,
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const uint8_t *sdu,
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sdu_size_t sdu_len);
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void abort_nr_dl_harq(NR_UE_info_t* UE, int8_t harq_pid);
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#endif /*__LAYER2_NR_MAC_PROTO_H__*/
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