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/*******************************************************************************
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    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom
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    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
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    OpenAirInterface 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 General Public License for more details.
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    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is
    included in this distribution in the file called "COPYING". If not,
    see <http://www.gnu.org/licenses/>.
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  Contact Information
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  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@eurecom.fr

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  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
/*! \file def.h
* \brief MAC data structures, constant, and function prototype
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* \author Navid Nikaein and Raymond Knopp
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* \date 2011
* \version 0.5
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* \email navid.nikaein@eurecom.fr
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* @ingroup _mac

*/

 
#ifndef __LAYER2_MAC_DEFS_H__
#define __LAYER2_MAC_DEFS_H__



#ifdef USER_MODE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#endif

//#include "COMMON/openair_defs.h"

#include "COMMON/platform_constants.h"
#include "COMMON/mac_rrc_primitives.h"
#include "PHY/defs.h"
#include "RadioResourceConfigCommon.h"
#include "RadioResourceConfigDedicated.h"
#include "MeasGapConfig.h"
#include "TDD-Config.h"
#include "RACH-ConfigCommon.h"
#include "MeasObjectToAddModList.h"
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#include "MobilityControlInfo.h"
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#ifdef Rel10
#include "MBSFN-AreaInfoList-r9.h"
#include "MBSFN-SubframeConfigList.h"
#include "PMCH-InfoList-r9.h"
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#include "SCellToAddMod-r10.h"
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#endif

//#ifdef PHY_EMUL
//#include "SIMULATION/PHY_EMULATION/impl_defs.h"
//#endif

/** @defgroup _mac_impl_ MAC Layer Reference Implementation
 * @ingroup _ref_implementation_
 * @{
 */

#define BCCH_PAYLOAD_SIZE_MAX 128  
#define CCCH_PAYLOAD_SIZE_MAX 128
 
#define SCH_PAYLOAD_SIZE_MAX 4096
/// Logical channel ids from 36-311 (Note BCCH is not specified in 36-311, uses the same as first DRB)
#define BCCH 3  // SI 
#define CCCH 0  // srb0
#define DCCH 1  // srb1
#define DCCH1 2 // srb2

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#define DTCH 3 // LCID
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#define MCCH 4 // MCCH
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#define MTCH 1 // MTCH
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#ifdef Rel10

// Mask for identifying subframe for MBMS 
#define MBSFN_TDD_SF3 0x80// for TDD
#define MBSFN_TDD_SF4 0x40
#define MBSFN_TDD_SF7 0x20
#define MBSFN_TDD_SF8 0x10
#define MBSFN_TDD_SF9 0x08
#define MBSFN_FDD_SF1 0x80// for FDD
#define MBSFN_FDD_SF2 0x40
#define MBSFN_FDD_SF3 0x20
#define MBSFN_FDD_SF6 0x10
#define MBSFN_FDD_SF7 0x08
#define MBSFN_FDD_SF8 0x04

#define MAX_MBSFN_AREA 8
#define MAX_PMCH_perMBSFN 15

#define MCCH_PAYLOAD_SIZE_MAX 128
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//#define MCH_PAYLOAD_SIZE_MAX 16384// this value is using in case mcs and TBS index are high
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#endif

#ifdef USER_MODE
#define printk printf
#endif //USER_MODE

#define MAX_NUM_LCGID 4
#define MAX_NUM_LCID 11
//#define MAX_NUM_RB 8
#define MAX_NUM_CE 5

#define NB_RA_PROC_MAX 4

#define BSR_TABLE_SIZE 64
// The power headroom reporting range is from -23 ...+40 dB and beyond, with step 1
#define PHR_MAPPING_OFFSET 23  // if ( x>= -23 ) val = floor (x + 23) 

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#define N_RBG_MAX 25 // for 20MHz channel BW

#define MIN_CQI_VALUE  0
#define MAX_CQI_VALUE  15

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#define LCGID0 0
#define LCGID1 1
#define LCGID2 2
#define LCGID3 3

#define LCID_EMPTY 0
#define LCID_NOT_EMPTY 1

typedef enum {
  CONNECTION_OK=0,
  CONNECTION_LOST,
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  PHY_RESYNCH,
  PHY_HO_PRACH
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} UE_L2_STATE_t;

typedef struct {
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  uint8_t RAPID:6;
  uint8_t T:1;
  uint8_t E:1;
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} __attribute__((__packed__))RA_HEADER_RAPID;

typedef struct {
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  uint8_t BI:4;
  uint8_t R:2;
  uint8_t T:1;
  uint8_t E:1;
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} __attribute__((__packed__))RA_HEADER_BI;
/*
typedef struct {
  uint64_t padding:16;
  uint64_t t_crnti:16;
  uint64_t hopping_flag:1;
  uint64_t rb_alloc:10;
  uint64_t mcs:4;
  uint64_t TPC:3;
  uint64_t UL_delay:1;
  uint64_t cqi_req:1;
  uint64_t Timing_Advance_Command:11;  // first/2nd octet LSB
  uint64_t R:1;                        // octet MSB
  } __attribute__((__packed__))RAR_PDU;

typedef struct {
  uint64_t padding:16;
  uint64_t R:1;                        // octet MSB
  uint64_t Timing_Advance_Command:11;  // first/2nd octet LSB
  uint64_t cqi_req:1;
  uint64_t UL_delay:1;
  uint64_t TPC:3;
  uint64_t mcs:4;
  uint64_t rb_alloc:10;
  uint64_t hopping_flag:1;
  uint64_t t_crnti:16;
  } __attribute__((__packed__))RAR_PDU;

#define sizeof_RAR_PDU 6
*/

typedef struct {
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  uint8_t LCID:5;  // octet 1 LSB
  uint8_t E:1;
  uint8_t R:2;     // octet 1 MSB
  uint8_t L:7;     // octet 2 LSB
  uint8_t F:1;     // octet 2 MSB
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} __attribute__((__packed__))SCH_SUBHEADER_SHORT;

typedef struct {
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  uint8_t LCID:5;   // octet 1 LSB
  uint8_t E:1;
  uint8_t R:2;      // octet 1 MSB
  uint8_t L_MSB:7;
  uint8_t F:1;      // octet 2 MSB
  uint8_t L_LSB:8;
  uint8_t padding;
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} __attribute__((__packed__))SCH_SUBHEADER_LONG;
 
typedef struct {
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  uint8_t LCID:5;
  uint8_t E:1;
  uint8_t R:2;
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} __attribute__((__packed__))SCH_SUBHEADER_FIXED;

typedef struct {
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  uint8_t Buffer_size:6;  // octet 1 LSB
  uint8_t LCGID:2;        // octet 1 MSB
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} __attribute__((__packed__))BSR_SHORT;

typedef BSR_SHORT BSR_TRUNCATED;

typedef struct {
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  uint32_t Buffer_size3:6;
  uint32_t Buffer_size2:6;
  uint32_t Buffer_size1:6;
  uint32_t Buffer_size0:6;
  uint32_t padding:8;
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} __attribute__((__packed__))BSR_LONG;

#define BSR_LONG_SIZE  (sizeof(BSR_LONG))

typedef struct {
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  uint8_t TA:6;
  uint8_t R:2;
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} __attribute__((__packed__))TIMING_ADVANCE_CMD;

typedef struct {
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  uint8_t PH:6;
  uint8_t R:2;
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} __attribute__((__packed__))POWER_HEADROOM_CMD;

typedef struct {
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  uint8_t Num_ue_spec_dci ;
  uint8_t Num_common_dci  ;
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  unsigned int nCCE;
  DCI_ALLOC_t dci_alloc[NUM_DCI_MAX] ;
} DCI_PDU;

typedef struct {
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  uint8_t payload[CCCH_PAYLOAD_SIZE_MAX] ;/*!< \brief CCCH payload */
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} __attribute__((__packed__))CCCH_PDU;

typedef struct {
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  uint8_t payload[BCCH_PAYLOAD_SIZE_MAX] ;/*!< \brief CCCH payload */
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} __attribute__((__packed__))BCCH_PDU;

#ifdef Rel10
typedef struct {
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  uint8_t payload[MCCH_PAYLOAD_SIZE_MAX] ;/*!< \brief MCCH payload */
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} __attribute__((__packed__))MCCH_PDU;
#endif

typedef struct{
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  uint8_t stop_sf_MSB:3; // octet 1 LSB
  uint8_t lcid:5;        // octet 2 MSB
  uint8_t stop_sf_LSB:8;
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} __attribute__((__packed__))MSI_ELEMENT;

// DLSCH LCHAN IDs
#define CCCH_LCHANID 0
#define UE_CONT_RES 28
#define TIMING_ADV_CMD 29
#define DRX_CMD 30
#define SHORT_PADDING 31

#ifdef Rel10
// MCH LCHAN IDs (table6.2.1-4 TS36.321)
#define MCCH_LCHANID 0
#define MCH_SCHDL_INFO 30

#endif

// ULSCH LCHAN IDs
#define EXTENDED_POWER_HEADROOM 25
#define POWER_HEADROOM 26
#define CRNTI 27
#define TRUNCATED_BSR 28
#define SHORT_BSR 29
#define LONG_BSR 30

/*! \brief Downlink SCH PDU Structure
 */
typedef struct {
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  int8_t payload[8][SCH_PAYLOAD_SIZE_MAX];
  uint16_t Pdu_size[8];
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} __attribute__ ((__packed__)) DLSCH_PDU;

/*! \brief MCH PDU Structure
 */
typedef struct {
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  int8_t payload[SCH_PAYLOAD_SIZE_MAX];
  uint16_t Pdu_size;
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  uint8_t mcs;
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  uint8_t sync_area;
  uint8_t msi_active;
  uint8_t mcch_active;
  uint8_t mtch_active;  
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} __attribute__ ((__packed__)) MCH_PDU;

/*! \brief Uplink SCH PDU Structure
 */
typedef struct {
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  int8_t payload[SCH_PAYLOAD_SIZE_MAX];         /*!< \brief SACH payload */
  uint16_t Pdu_size;
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} __attribute__ ((__packed__)) ULSCH_PDU;

#include "PHY/impl_defs_top.h"

typedef enum {
  S_UL_NONE =0,
  S_UL_WAITING,
  S_UL_SCHEDULED, 
  S_UL_BUFFERED,  
  S_UL_NUM_STATUS
} UE_ULSCH_STATUS;

typedef enum {
  S_DL_NONE =0,
  S_DL_WAITING,
  S_DL_SCHEDULED, 
  S_DL_BUFFERED,  
  S_DL_NUM_STATUS
} UE_DLSCH_STATUS;

// temp struct for sched
typedef struct {
  
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  rnti_t rnti;
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  uint16_t subframe;
  uint16_t serving_num;
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  UE_ULSCH_STATUS status;
} eNB_ULSCH_INFO;
// temp struct for sched
typedef struct {
  
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  rnti_t rnti;
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  uint16_t weight;
  uint16_t subframe;
  uint16_t serving_num;
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  UE_DLSCH_STATUS status;
} eNB_DLSCH_INFO;
typedef struct{
  /// BW
  uint16_t num_dlactive_UEs;
  ///  available number of PRBs for a give SF
  uint16_t available_prbs;
  /// total number of PRB available for the user plane
  uint32_t total_available_prbs;
  /// aggregation 
  /// total avilable nccc : num control channel element 
  uint16_t available_ncces;
  // only for a new transmission, should be extended for retransmission  
  // current dlsch  bit rate for all transport channels 
  uint32_t dlsch_bitrate;
  //
  uint32_t dlsch_bytes_tx;
  //
  uint32_t dlsch_pdus_tx;
 //
  uint32_t total_dlsch_bitrate;
  //
  uint32_t total_dlsch_bytes_tx;
  //
  uint32_t total_dlsch_pdus_tx;

  //
  uint32_t ulsch_bitrate;
  //
  uint32_t ulsch_bytes_rx;
  //
  uint64_t ulsch_pdus_rx;
  // here for RX
}eNB_STATS;

typedef struct{

  /// CRNTI of UE
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  rnti_t crnti; ///user id (rnti) of connected UEs
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  // rrc status 
  uint8_t rrc_status;
  /// harq pid
  uint8_t harq_pid;
  /// harq rounf 
  uint8_t harq_round;
  /// DL Wideband CQI index (2 TBs) 
  uint8_t dl_cqi;
  /// total available number of PRBs for a new transmission
  uint16_t rbs_used;
  /// total available number of PRBs for a retransmission
  uint16_t rbs_used_retx;
  /// total nccc used for a new transmission: num control channel element 
  uint16_t ncce_used;
  /// total avilable nccc for a retransmission: num control channel element 
  uint16_t ncce_used_retx;
 
  // mcs1 before the rate adaptaion 
  uint8_t dlsch_mcs1;
  /// Target mcs2 after rate-adaptation 
  uint8_t dlsch_mcs2;
  //  current TBS with mcs2 
  uint32_t TBS;
  //  total TBS with mcs2 
  //  uint32_t total_TBS;
 //  total rb used for a new transmission 
  uint32_t total_rbs_used;
 //  total rb used for retransmission 
  uint32_t total_rbs_used_retx;
 

  /// TX 
  /// Num pkt
  uint32_t num_pdu_tx[NB_RB_MAX];
  /// num bytes
  uint32_t num_bytes_tx[NB_RB_MAX];
  /// num retransmission / harq
  uint32_t num_retransmission;
  /// instantaneous tx throughput for each TTI
  //  uint32_t tti_throughput[NB_RB_MAX];
 
  /// overall 
  //
  uint32_t  dlsch_bitrate; 
  //total 
  uint32_t  total_dlsch_bitrate; 
  /// headers+ CE +  padding bytes for a MAC PDU 
  uint64_t overhead_bytes;
 /// headers+ CE +  padding bytes for a MAC PDU 
  uint64_t total_overhead_bytes;
 /// headers+ CE +  padding bytes for a MAC PDU 
  uint64_t avg_overhead_bytes;
  // MAC multiplexed payload 
  uint64_t total_sdu_bytes;
  // total MAC pdu bytes
  uint64_t total_pdu_bytes;
  
  // total num pdu
  uint32_t total_num_pdus;
  //
  //  uint32_t avg_pdu_size;
 
  /// RX 
  /// num rx pdu 
  uint32_t num_pdu_rx[NB_RB_MAX];
  /// num bytes rx 
  uint32_t num_bytes_rx[NB_RB_MAX];
 /// instantaneous rx throughput for each TTI
  //  uint32_t tti_goodput[NB_RB_MAX];
  /// errors 
  uint32_t num_errors_rx; 
  /// overall 

  // total MAC pdu bytes
  uint64_t total_pdu_bytes_rx;
  // total num pdu
  uint32_t total_num_pdus_rx;
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  // num of error pdus 
  uint32_t total_num_errors_rx;
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}eNB_UE_STATS;
 
typedef struct{
  /// C-RNTI of UE
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  rnti_t rnti;
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  /// NDI from last scheduling
  uint8_t oldNDI[8];
  /// NDI from last UL scheduling
  uint8_t oldNDI_UL[8];
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  /// Flag to indicate UL has been scheduled at least once
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  boolean_t ul_active;
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  /// Flag to indicate UE has been configured (ACK from RRCConnectionSetup received)
  boolean_t configured;
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  // PHY interface info

  /// DCI format for DLSCH
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  uint16_t DLSCH_dci_fmt;
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  /// Current Aggregation Level for DCI
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  uint8_t DCI_aggregation_min;
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  /// 
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  uint8_t DLSCH_dci_size_bits;
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  /// DCI buffer for DLSCH
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  uint8_t DLSCH_DCI[8][(MAX_DCI_SIZE_BITS>>3)+1];
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  /// Number of Allocated RBs for DL after scheduling (prior to frequency allocation)
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  uint16_t nb_rb[8]; // num_max_harq
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  /// Number of Allocated RBs for UL after scheduling (prior to frequency allocation)
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  uint16_t nb_rb_ul[8]; // num_max_harq
  
  /// Number of Allocated RBs by the ulsch preprocessor
  uint8_t pre_allocated_nb_rb_ul;
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  /// index of Allocated RBs by the ulsch preprocessor
  int8_t pre_allocated_rb_table_index_ul;
  
  /// total allocated RBs
  int8_t total_allocated_rbs;
  
  /// assigned MCS by the ulsch preprocessor
  uint8_t pre_assigned_mcs_ul;
  
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  /// DCI buffer for ULSCH
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  uint8_t ULSCH_DCI[8][(MAX_DCI_SIZE_BITS>>3)+1];
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  /// DL DAI
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  uint8_t DAI;
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  /// UL DAI
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  uint8_t DAI_ul[10];
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  /// UL Scheduling Request Received
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  uint8_t ul_SR;
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  //Resource Block indication for each sub-band in MU-MIMO 
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  uint8_t rballoc_subband[8][50];
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  // Logical channel info for link with RLC

  /// UE BSR info for each logical channel group id
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  uint8_t bsr_info[MAX_NUM_LCGID];
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  /// phr information
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  int8_t phr_info;
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  /// phr information
  int8_t phr_info_configured;

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  //dl buffer info
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  uint32_t dl_buffer_info[MAX_NUM_LCID];
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  uint32_t dl_buffer_total;
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  uint32_t dl_pdus_total;
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  uint32_t dl_pdus_in_buffer[MAX_NUM_LCID];
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  uint32_t dl_buffer_head_sdu_creation_time[MAX_NUM_LCID];
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  uint32_t  dl_buffer_head_sdu_creation_time_max;
  
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  uint8_t    dl_buffer_head_sdu_is_segmented[MAX_NUM_LCID];
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  uint32_t dl_buffer_head_sdu_remaining_size_to_send[MAX_NUM_LCID];
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  // uplink info
  uint32_t ul_total_buffer;
  
  uint32_t ul_buffer_creation_time[MAX_NUM_LCGID];
  
  uint32_t ul_buffer_creation_time_max;

  uint32_t ul_buffer_info[MAX_NUM_LCGID];

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} UE_TEMPLATE;

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typedef struct{
		//UL transmission bandwidth in RBs
		uint8_t ul_bandwidth[MAX_NUM_LCID];
		//DL transmission bandwidth in RBs
		uint8_t dl_bandwidth[MAX_NUM_LCID];

		//To do GBR bearer
		uint8_t min_ul_bandwidth[MAX_NUM_LCID];
		
		uint8_t min_dl_bandwidth[MAX_NUM_LCID];

		//aggregated bit rate of non-gbr bearer per UE
		uint64_t	ue_AggregatedMaximumBitrateDL;
		//aggregated bit rate of non-gbr bearer per UE
		uint64_t	ue_AggregatedMaximumBitrateUL;
		//CQI scheduling interval in subframes.
		uint16_t cqiSchedInterval;
		//Contention resolution timer used during random access
		uint8_t mac_ContentionResolutionTimer;
		
		uint16_t max_allowed_rbs[MAX_NUM_LCID];

		uint8_t max_mcs[MAX_NUM_LCID];

		uint16_t priority[MAX_NUM_LCID];
	
} UE_sched_ctrl;

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typedef struct {
  /// Flag to indicate this process is active
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  boolean_t RA_active;
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  /// Size of DCI for RA-Response (bytes)
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  uint8_t RA_dci_size_bytes1;
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  /// Size of DCI for RA-Response (bits)
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  uint8_t RA_dci_size_bits1;
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  /// Actual DCI to transmit for RA-Response
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  uint8_t RA_alloc_pdu1[(MAX_DCI_SIZE_BITS>>3)+1];
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  /// DCI format for RA-Response (should be 1A)
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  uint8_t RA_dci_fmt1;
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  /// Size of DCI for Msg4/ContRes (bytes)  
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  uint8_t RA_dci_size_bytes2;
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  /// Size of DCI for Msg4/ContRes (bits)  
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  uint8_t RA_dci_size_bits2;
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  /// Actual DCI to transmit for Msg4/ContRes
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  uint8_t RA_alloc_pdu2[(MAX_DCI_SIZE_BITS>>3)+1];
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  /// DCI format for Msg4/ContRes (should be 1A)
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  uint8_t RA_dci_fmt2;
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  /// Flag to indicate the eNB should generate RAR.  This is triggered by detection of PRACH
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  uint8_t generate_rar;
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  /// Subframe where preamble was received
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  uint8_t preamble_subframe;
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  /// Subframe where Msg3 is to be sent
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  uint8_t Msg3_subframe;
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  /// Flag to indicate the eNB should generate Msg4 upon reception of SDU from RRC.  This is triggered by first ULSCH reception at eNB for new user.
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    uint8_t generate_Msg4;
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  /// Flag to indicate the eNB should generate the DCI for Msg4, after getting the SDU from RRC.
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  uint8_t generate_Msg4_dci;
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  /// Flag to indicate that eNB is waiting for ACK that UE has received Msg3.
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  uint8_t wait_ack_Msg4;
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  /// UE RNTI allocated during RAR
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  rnti_t rnti;
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  /// RA RNTI allocated from received PRACH
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  uint16_t RA_rnti;
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  /// Received preamble_index
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  uint8_t preamble_index;
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  /// Received UE Contention Resolution Identifier 
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  uint8_t cont_res_id[6];
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  /// Timing offset indicated by PHY
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  int16_t timing_offset;
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  /// Timeout for RRC connection 
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  int16_t RRC_timer;
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} RA_TEMPLATE;


///subband bitmap coniguration (for ALU icic algo purpose), in test phase

typedef struct{
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	uint8_t sbmap[NUMBER_OF_SUBBANDS]; //13 = number of SB MAX for 100 PRB
	uint8_t periodicity;
	uint8_t first_subframe;
	uint8_t sb_size;
	uint8_t nb_active_sb;
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}SBMAP_CONF;

//end ALU's algo
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typedef struct{
  DLSCH_PDU DLSCH_pdu[MAX_NUM_CCs][2][NUMBER_OF_UE_MAX];
  /// DCI template and MAC connection parameters for UEs
  UE_TEMPLATE UE_template[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  /// DCI template and MAC connection for RA processes
  int pCC_id[NUMBER_OF_UE_MAX];
  int ordered_CCids[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  int numactiveCCs[NUMBER_OF_UE_MAX];
  int ordered_ULCCids[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  int numactiveULCCs[NUMBER_OF_UE_MAX];
  /// eNB to UE statistics 
  eNB_UE_STATS eNB_UE_stats[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  UE_sched_ctrl UE_sched_ctrl[NUMBER_OF_UE_MAX];

  int next[NUMBER_OF_UE_MAX];
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  int head; 
  int next_ul[NUMBER_OF_UE_MAX];
  int head_ul;
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  int avail;
  int num_UEs;
  boolean_t active[NUMBER_OF_UE_MAX];
} UE_list_t;
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typedef struct{
  /// Outgoing DCI for PHY generated by eNB scheduler
  DCI_PDU DCI_pdu;
  /// Outgoing BCCH pdu for PHY
  BCCH_PDU BCCH_pdu;
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  /// Outgoing BCCH DCI allocation
  uint32_t BCCH_alloc_pdu;
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  /// Outgoing CCCH pdu for PHY
  CCCH_PDU CCCH_pdu;
  RA_TEMPLATE RA_template[NB_RA_PROC_MAX];
  /// BCCH active flag
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  uint8_t bcch_active;
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  /// MBSFN SubframeConfig
  struct MBSFN_SubframeConfig *mbsfn_SubframeConfig[8];
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  /// number of subframe allocation pattern available for MBSFN sync area 
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  uint8_t num_sf_allocation_pattern;
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#ifdef Rel10 
  /// MBMS Flag
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  uint8_t MBMS_flag;
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  /// Outgoing MCCH pdu for PHY
  MCCH_PDU MCCH_pdu;
  /// MCCH active flag
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  uint8_t msi_active;
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  /// MCCH active flag
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  uint8_t mcch_active;
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  /// MTCH active flag
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  uint8_t mtch_active;
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  /// number of active MBSFN area 
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  uint8_t num_active_mbsfn_area;
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  /// MBSFN Area Info
  struct  MBSFN_AreaInfo_r9 *mbsfn_AreaInfo[MAX_MBSFN_AREA];
  /// PMCH Config
  struct PMCH_Config_r9 *pmch_Config[MAX_PMCH_perMBSFN];
  /// MBMS session info list
  struct MBMS_SessionInfoList_r9 *mbms_SessionList[MAX_PMCH_perMBSFN];
  /// Outgoing MCH pdu for PHY
  MCH_PDU MCH_pdu;
#endif
#ifdef CBA
  uint8_t num_active_cba_groups; 
  uint16_t cba_rnti[NUM_MAX_CBA_GROUP];
#endif 
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}COMMON_channels_t;

typedef struct{
  /// 
  uint16_t Node_id;
  /// frame counter
  frame_t frame;
  /// subframe counter
  sub_frame_t subframe;
  /// Common cell resources
  COMMON_channels_t common_channels[MAX_NUM_CCs];
  UE_list_t UE_list;
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  ///subband bitmap configuration
  SBMAP_CONF sbmap_conf;
  
  ///  active flag for Other lcid 
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  //  uint8_t lcid_active[NB_RB_MAX];
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  // eNB stats 
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  eNB_STATS eNB_stats[MAX_NUM_CCs];
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  // MAC function execution peformance profiler
  time_stats_t eNB_scheduler;
  time_stats_t schedule_si;
  time_stats_t schedule_ra;
  time_stats_t schedule_ulsch;
  time_stats_t fill_DLSCH_dci;
  time_stats_t schedule_dlsch_preprocessor; 
  time_stats_t schedule_dlsch; // include rlc_data_req + MAC header + preprocessor
  time_stats_t schedule_mch;
  time_stats_t rx_ulsch_sdu; // include rlc_data_ind
  
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}eNB_MAC_INST;

typedef struct {
  /// buffer status for each lcgid
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  uint8_t  BSR[MAX_NUM_LCGID]; // should be more for mesh topology
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  /// keep the number of bytes in rlc buffer for each lcid
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  uint16_t  BSR_bytes[MAX_NUM_LCGID];
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  /// buffer status for each lcid
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  uint8_t  LCID_status[MAX_NUM_LCID];
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  /// SR pending as defined in 36.321
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  uint8_t  SR_pending;
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  /// SR_COUNTER as defined in 36.321
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  uint16_t SR_COUNTER;
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  /// logical channel group ide for each LCID
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  uint8_t  LCGID[MAX_NUM_LCID];
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  /// retxBSR-Timer, default value is sf2560
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  uint16_t retxBSR_Timer;
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  /// retxBSR_SF, number of subframe before triggering a regular BSR 
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  int16_t retxBSR_SF;
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  /// periodicBSR-Timer, default to infinity
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  uint16_t periodicBSR_Timer;
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  /// periodicBSR_SF, number of subframe before triggering a periodic BSR 
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  int16_t periodicBSR_SF;
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  /// default value is 0: not configured
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  uint16_t sr_ProhibitTimer;
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  /// sr ProhibitTime running
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  uint8_t sr_ProhibitTimer_Running;
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  ///  default value to n5
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  uint16_t maxHARQ_Tx;
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  /// default value is false
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  uint16_t ttiBundling;
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  /// default value is release 
  struct DRX_Config *drx_config;
  /// default value is release
  struct MAC_MainConfig__phr_Config *phr_config;
  ///timer before triggering a periodic PHR
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  uint16_t periodicPHR_Timer;
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  ///timer before triggering a prohibit PHR
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  uint16_t prohibitPHR_Timer;
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  ///DL Pathloss change value 
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  uint16_t PathlossChange;
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  ///number of subframe before triggering a periodic PHR
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  int16_t periodicPHR_SF;
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  ///number of subframe before triggering a prohibit PHR
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  int16_t prohibitPHR_SF;
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  ///DL Pathloss Change in db 
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  uint16_t PathlossChange_db;
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  //Bj bucket usage per  lcid
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  int16_t Bj[MAX_NUM_LCID];
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  // Bucket size per lcid
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  int16_t bucket_size[MAX_NUM_LCID];
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} UE_SCHEDULING_INFO;

typedef struct{
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  uint16_t Node_id;
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  /// frame counter
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  frame_t     frame;
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  /// subframe counter
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  sub_frame_t subframe;
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  /// C-RNTI of UE
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  uint16_t crnti;
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  /// C-RNTI of UE before HO
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  rnti_t crnti_before_ho; ///user id (rnti) of connected UEs
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  /// uplink active flag
  uint8_t ul_active;
  /// pointer to RRC PHY configuration 
  RadioResourceConfigCommonSIB_t *radioResourceConfigCommon;
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  /// pointer to RACH_ConfigDedicated (NULL when not active, i.e. upon HO completion or T304 expiry)
  struct RACH_ConfigDedicated	*rach_ConfigDedicated;
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  /// pointer to RRC PHY configuration 
  struct PhysicalConfigDedicated *physicalConfigDedicated;
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#ifdef Rel10 
 /// pointer to RRC PHY configuration SCEll
  struct PhysicalConfigDedicatedSCell_r10	*physicalConfigDedicatedSCell_r10;
#endif 
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  /// pointer to TDD Configuration (NULL for FDD)
  TDD_Config_t *tdd_Config;
  /// Number of adjacent cells to measure
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  uint8_t  n_adj_cells;
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  /// Array of adjacent physical cell ids
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  uint32_t adj_cell_id[6];
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  /// Pointer to RRC MAC configuration
  MAC_MainConfig_t *macConfig;
  /// Pointer to RRC Measurement gap configuration
  MeasGapConfig_t  *measGapConfig;
  /// Pointers to LogicalChannelConfig indexed by LogicalChannelIdentity. Note NULL means LCHAN is inactive.
  LogicalChannelConfig_t *logicalChannelConfig[MAX_NUM_LCID];
  /// Scheduling Information 
  UE_SCHEDULING_INFO scheduling_info;
  /// Outgoing CCCH pdu for PHY
  CCCH_PDU CCCH_pdu;
  /// Incoming DLSCH pdu for PHY
  //DLSCH_PDU DLSCH_pdu[NUMBER_OF_UE_MAX][2];
  /// number of attempt for rach
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  uint8_t RA_attempt_number;
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  /// Random-access procedure flag
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  uint8_t RA_active;
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  /// Random-access window counter
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  int8_t RA_window_cnt;
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  /// Random-access Msg3 size in bytes
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  uint8_t RA_Msg3_size;
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  /// Random-access prachMaskIndex
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  uint8_t RA_prachMaskIndex;
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  /// Flag indicating Preamble set (A,B) used for first Msg3 transmission
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  uint8_t RA_usedGroupA;
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  /// Random-access Resources
  PRACH_RESOURCES_t RA_prach_resources;
  /// Random-access PREAMBLE_TRANSMISSION_COUNTER
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  uint8_t RA_PREAMBLE_TRANSMISSION_COUNTER;
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  /// Random-access backoff counter
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  int16_t RA_backoff_cnt;
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  /// Random-access variable for window calculation (frame of last change in window counter)
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  uint32_t RA_tx_frame;
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  /// Random-access variable for window calculation (subframe of last change in window counter)
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  uint8_t RA_tx_subframe;
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  /// Random-access Group B maximum path-loss
  /// Random-access variable for backoff (frame of last change in backoff counter)
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  uint32_t RA_backoff_frame;
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  /// Random-access variable for backoff (subframe of last change in backoff counter)
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  uint8_t RA_backoff_subframe;
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  /// Random-access Group B maximum path-loss
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  uint16_t RA_maxPL;
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  /// Random-access Contention Resolution Timer active flag
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  uint8_t RA_contention_resolution_timer_active;
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  /// Random-access Contention Resolution Timer count value
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  uint8_t RA_contention_resolution_cnt;
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  /// power headroom reporitng reconfigured 
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  uint8_t PHR_reconfigured;
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  /// power headroom state as configured by the higher layers
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  uint8_t PHR_state;
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  /// power backoff due to power management (as allowed by P-MPRc) for this cell
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  uint8_t PHR_reporting_active;
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  /// power backoff due to power management (as allowed by P-MPRc) for this cell
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  uint8_t power_backoff_db[NUMBER_OF_eNB_MAX];
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  /// MBSFN_Subframe Configuration
  struct MBSFN_SubframeConfig *mbsfn_SubframeConfig[8];
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  /// number of subframe allocation pattern available for MBSFN sync area 
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  uint8_t num_sf_allocation_pattern;
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#ifdef Rel10
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 /// number of active MBSFN area 
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  uint8_t num_active_mbsfn_area;
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  /// MBSFN Area Info
  struct  MBSFN_AreaInfo_r9 *mbsfn_AreaInfo[MAX_MBSFN_AREA];
  /// PMCH Config
  struct PMCH_Config_r9 *pmch_Config[MAX_PMCH_perMBSFN];
  /// MCCH status
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  uint8_t mcch_status;
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  /// MSI status
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  uint8_t msi_status;// could be an array if there are >1 MCH in one MBSFN area
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#endif
//#ifdef CBA
  uint16_t cba_rnti[NUM_MAX_CBA_GROUP];
  uint8_t cba_last_access[NUM_MAX_CBA_GROUP];
//#endif
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  time_stats_t ue_scheduler; // total 
  time_stats_t tx_ulsch_sdu;  // inlcude rlc_data_req + mac header gen
  time_stats_t rx_dlsch_sdu ; // include mac_rrc_data_ind or mac_rlc_status_ind+mac_rlc_data_ind and  mac header parser
  time_stats_t ue_query_mch; 
  time_stats_t rx_mch_sdu; 
  time_stats_t rx_si; // include mac_rrc_data_ind
    
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}UE_MAC_INST;

typedef struct {
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  uint16_t cell_ids[6];
  uint8_t n_adj_cells;
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} neigh_cell_id_t;


/* \brief Generate header for DL-SCH.  This function parses the desired control elements and sdus and generates the header as described
in 36-321 MAC layer specifications.  It returns the number of bytes used for the header to be used as an offset for the payload 
in the DLSCH buffer.
@param mac_header Pointer to the first byte of the MAC header (DL-SCH buffer)
@param num_sdus Number of SDUs in the payload
@param sdu_lengths Pointer to array of SDU lengths
@param sdu_lcids Pointer to array of LCIDs (the order must be the same as the SDU length array)
@param drx_cmd dicontinous reception command 
@param timing_advancd_cmd timing advanced command
@param ue_cont_res_id Pointer to contention resolution identifier (NULL means not present in payload)
@param short_padding Number of bytes for short padding (0,1,2)
@param post_padding number of bytes for padding at the end of MAC PDU 
@returns Number of bytes used for header
*/
unsigned char generate_dlsch_header(unsigned char *mac_header,
				    unsigned char num_sdus,
				    unsigned short *sdu_lengths,
				    unsigned char *sdu_lcids,
				    unsigned char drx_cmd,
				    short timing_advance_cmd,
				    unsigned char *ue_cont_res_id,
				    unsigned char short_padding,
				    unsigned short post_padding);

/** \brief RRC Configuration primitive for PHY/MAC.  Allows configuration of PHY/MAC resources based on System Information (SI), RRCConnectionSetup and RRCConnectionReconfiguration messages.
@param Mod_id Instance ID of eNB
@param eNB_flag Indicates if this is a eNB or UE configuration
@param UE_id Index of UE if this is an eNB configuration
@param eNB_id Index of eNB if this is a UE configuration
@param radioResourceConfigCommon Structure from SIB2 for common radio parameters (if NULL keep existing configuration)
@param physcialConfigDedicated Structure from RRCConnectionSetup or RRCConnectionReconfiguration for dedicated PHY parameters (if NULL keep existing configuration)
@param measObj Structure from RRCConnectionReconfiguration for UE measurement procedures
@param mac_MainConfig Structure from RRCConnectionSetup or RRCConnectionReconfiguration for dedicated MAC parameters (if NULL keep existing configuration)
@param logicalChannelIdentity Logical channel identity index of corresponding logical channel config 
@param logicalChannelConfig Pointer to logical channel configuration
@param measGapConfig Measurement Gap configuration for MAC (if NULL keep existing configuration)
@param tdd_Config TDD Configuration from SIB1 (if NULL keep existing configuration)
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@param mobilityControlInfo mobility control info received for Handover
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@param SIwindowsize SI Windowsize from SIB1 (if NULL keep existing configuration)
@param SIperiod SI Period from SIB1 (if NULL keep existing configuration)
@param MBMS_Flag indicates MBMS transmission
@param mbsfn_SubframeConfigList pointer to mbsfn subframe configuration list from SIB2
@param mbsfn_AreaInfoList pointer to MBSFN Area Info list from SIB13
@param pmch_InfoList pointer to PMCH_InfoList from MBSFNAreaConfiguration Message (MCCH Message)
*/
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int rrc_mac_config_req(module_id_t     module_idP,
                       eNB_flag_t eNB_flag,
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                       uint8_t         UE_id,
                       uint8_t         eNB_index,
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                       RadioResourceConfigCommonSIB_t *radioResourceConfigCommon,
                       struct PhysicalConfigDedicated *physicalConfigDedicated,
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#ifdef Rel10
		       SCellToAddMod_r10_t *sCellToAddMod_r10,
		       //struct PhysicalConfigDedicatedSCell_r10 *physicalConfigDedicatedSCell_r10,
#endif
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                       MeasObjectToAddMod_t **measObj,
                       MAC_MainConfig_t *mac_MainConfig,
                       long logicalChannelIdentity,
                       LogicalChannelConfig_t *logicalChannelConfig,
                       MeasGapConfig_t *measGapConfig,
                       TDD_Config_t *tdd_Config,
                       MobilityControlInfo_t *mobilityControlInfo,
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                       uint8_t *SIwindowsize,
                       uint16_t *SIperiod,
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                       ARFCN_ValueEUTRA_t *ul_CarrierFreq,
                       long *ul_Bandwidth,
                       AdditionalSpectrumEmission_t *additionalSpectrumEmission,
                       struct MBSFN_SubframeConfigList *mbsfn_SubframeConfigList
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#ifdef Rel10
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                       ,
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                       uint8_t MBMS_Flag,
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                       MBSFN_AreaInfoList_r9_t *mbsfn_AreaInfoList,
                       PMCH_InfoList_r9_t *pmch_InfoList
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#endif
#ifdef CBA
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                       ,
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                       uint8_t num_active_cba_groups,
                       uint16_t cba_rnti
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#endif
		       );



/*@}*/
#endif /*__LAYER2_MAC_DEFS_H__ */