proto.h 37.4 KB
Newer Older
1
/*******************************************************************************
2 3
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom
4

5 6 7 8
    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.
9 10


11 12 13 14
    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.
15

16 17 18 19
    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/>.
20 21

  Contact Information
22 23
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
24
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
25

ghaddab's avatar
ghaddab committed
26
  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
27 28

*******************************************************************************/
29
/*! \file LAYER2/MAC/proto.h
30
 * \brief MAC functions prototypes for eNB and UE
31
 * \author Navid Nikaein and Raymond Knopp
32
 * \date 2010 - 2014
33
 * \email navid.nikaein@eurecom.fr
34
 * \version 1.0
35 36 37
 */
#ifndef __LAYER2_MAC_PROTO_H__
#define __LAYER2_MAC_PROTO_H__
38 39 40
/** \addtogroup _mac
 *  @{
 */
41

42 43
/** \fn void add_ue_spec_dci(DCI_PDU *DCI_pdu,void *pdu,rnti_t rnti,unsigned char dci_size_bytes,unsigned char aggregation,unsigned char dci_size_bits,unsigned char dci_fmt,uint8_t ra_flag);
\brief 
44

45
*/
46 47
void add_ue_spec_dci(DCI_PDU *DCI_pdu,void *pdu,rnti_t rnti,unsigned char dci_size_bytes,unsigned char aggregation,unsigned char dci_size_bits,unsigned char dci_fmt,uint8_t ra_flag);

Lionel Gauthier's avatar
Lionel Gauthier committed
48
//LG commented cause compilation error for RT eNB extern inline unsigned int taus(void);
49

50 51
/** \fn void schedule_RA(module_id_t module_idP,frame_t frameP,sub_frame_t subframe,uint8_t Msg3_subframe,unsigned int *nprb,unsigned int *nCCE);
\brief First stage of Random-Access Scheduling. Loops over the RA_templates and checks if RAR, Msg3 or its retransmission are to be scheduled in the subframe.  It returns the total number of PRB used for RA SDUs.  For Msg3 it retrieves the L3msg from RRC and fills the appropriate buffers.  For the others it just computes the number of PRBs. Each DCI uses 3 PRBs (format 1A)
52 53 54 55 56 57 58
for the message.
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
@param nprb Pointer to current PRB count
@param nCCE Pointer to current nCCE count
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
59
void schedule_RA(module_id_t module_idP,frame_t frameP,sub_frame_t subframe,uint8_t Msg3_subframe,unsigned int *nprb,unsigned int *nCCE);
60 61 62 63 64 65 66 67 68

/** \brief First stage of SI Scheduling. Gets a SI SDU from RRC if available and computes the MCS required to transport it as a function of the SDU length.  It assumes a length less than or equal to 64 bytes (MCS 6, 3 PRBs).
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
@param Msg3_subframe Subframe where Msg3 will be transmitted
@param nprb Pointer to current PRB count
@param nCCE Pointer to current nCCE count
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
69
void schedule_SI(module_id_t module_idP,frame_t frameP,unsigned int *nprb,unsigned int *nCCE);
70 71 72 73 74 75

/** \brief MBMS scheduling: Checking the position for MBSFN subframes. Create MSI, transfer MCCH from RRC to MAC, transfer MTCHs from RLC to MAC. Multiplexing MSI,MCCH&MTCHs. Return 1 if there are MBSFN data being allocated, otherwise return 0;
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
*/
76
int schedule_MBMS(module_id_t module_idP,uint8_t CC_id, frame_t frameP, sub_frame_t subframe);
77 78 79 80

/** \brief check the mapping between sf allocation and sync area, Currently only supports 1:1 mapping
@param Mod_id Instance ID of eNB
@param mbsfn_sync_area index of mbsfn sync area
81
@param[out] index of sf pattern
82
*/
83
int8_t get_mbsfn_sf_alloction (module_id_t module_idP, uint8_t CC_id, uint8_t mbsfn_sync_area);
84 85 86 87 88

/** \brief check the mapping between sf allocation and sync area, Currently only supports 1:1 mapping
@param Mod_id Instance ID of eNB
@param mbsfn_sync_area index of mbsfn sync area
@param eNB_index index of eNB
89
@param[out] index of sf pattern
90 91 92 93 94 95 96 97 98 99 100 101
*/
int8_t ue_get_mbsfn_sf_alloction (module_id_t module_idP, uint8_t mbsfn_sync_area, unsigned char eNB_index);

/** \brief top ULSCH Scheduling for TDD (config 1-6).
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
@param sched_subframe Subframe number where PUSCH is transmitted (for DAI lookup)
@param nCCE Pointer to current nCCE count
*/
void schedule_ulsch(module_id_t module_idP,frame_t frameP,unsigned char cooperation_flag,sub_frame_t subframe,unsigned char sched_subframe,unsigned int *nCCE);

102
/** \brief ULSCH Scheduling per RNTI
103 104 105 106 107 108
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
@param sched_subframe Subframe number where PUSCH is transmitted (for DAI lookup)
@param nCCE Pointer to current nCCE count
*/
109 110
void schedule_ulsch_rnti(module_id_t module_idP, unsigned char cooperation_flag, frame_t frameP, sub_frame_t subframe, unsigned char sched_subframe, unsigned int *nCCE, unsigned int *nCCE_available,
                         uint16_t *first_rb);
111

112
/** \brief ULSCH Scheduling for CBA  RNTI
113 114 115 116 117 118
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe number on which to act
@param sched_subframe Subframe number where PUSCH is transmitted (for DAI lookup)
@param nCCE Pointer to current nCCE count
*/
119 120
void schedule_ulsch_cba_rnti(module_id_t module_idP, unsigned char cooperation_flag, frame_t frameP, sub_frame_t subframe, unsigned char sched_subframe, unsigned int *nCCE,
                             unsigned int *nCCE_available, uint16_t *first_rb);
121

122
/** \brief Second stage of DLSCH scheduling, after schedule_SI, schedule_RA and schedule_dlsch have been called.  This routine first allocates random frequency assignments for SI and RA SDUs using distributed VRB allocations and adds the corresponding DCI SDU to the DCI buffer for PHY.  It then loops over the UE specific DCIs previously allocated and fills in the remaining DCI fields related to frequency allocation.  It assumes localized allocation of type 0 (DCI.rah=0).  The allocation is done for tranmission modes 1,2,4.
123 124 125 126 127 128 129
@param Mod_id Instance of eNB
@param frame Frame index
@param subframe Index of subframe
@param rballoc Bitmask for allowable subband allocations
@param RA_scheduled RA was scheduled in this subframe
@param mbsfn_flag Indicates that this subframe is for MCH/MCCH
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
130
void fill_DLSCH_dci(module_id_t module_idP,frame_t frameP,sub_frame_t subframe,uint32_t *rballoc,uint8_t RA_scheduled,int *mbsfn_flag);
131

132
/** \brief UE specific DLSCH scheduling. Retrieves next ue to be schduled from round-robin scheduler and gets the appropriate harq_pid for the subframe from PHY. If the process is active and requires a retransmission, it schedules the retransmission with the same PRB count and MCS as the first transmission. Otherwise it consults RLC for DCCH/DTCH SDUs (status with maximum number of available PRBS), builds the MAC header (timing advance sent by default) and copies
133 134 135 136 137 138 139
@param Mod_id Instance ID of eNB
@param frame Frame index
@param subframe Subframe on which to act
@param nb_rb_used0 Number of PRB used by SI/RA
@param nCCE_used Number of CCE used by SI/RA
@param mbsfn_flag  Indicates that MCH/MCCH is in this subframe
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
140
void schedule_ue_spec(module_id_t module_idP,frame_t frameP,sub_frame_t subframe,unsigned int *nb_rb_used0,unsigned int *nCCE_used,int *mbsfn_flag);
141 142 143 144 145

/** \brief Function for UE/PHY to compute PUSCH transmit power in power-control procedure.
    @param Mod_id Module id of UE
    @returns Po_NOMINAL_PUSCH (PREAMBLE_RECEIVED_TARGET_POWER+DELTA_PREAMBLE
*/
146
int8_t get_Po_NOMINAL_PUSCH(module_id_t module_idP,uint8_t CC_id);
147

148
/** \brief Function to compute DELTA_PREAMBLE from 36.321 (for RA power ramping procedure and Msg3 PUSCH power control policy)
149 150 151
    @param Mod_id Module id of UE
    @returns DELTA_PREAMBLE
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
152
int8_t get_DELTA_PREAMBLE(module_id_t module_idP,int CC_id);
153

154
/** \brief Function for compute deltaP_rampup from 36.321 (for RA power ramping procedure and Msg3 PUSCH power control policy)
155
    @param Mod_id Module id of UE
156
    @param CC_id carrier component id of UE
157 158
    @returns deltaP_rampup
*/
159
int8_t get_deltaP_rampup(module_id_t module_idP,uint8_t CC_id);
160 161 162 163 164 165 166

//main.c

void chbch_phy_sync_success(module_id_t module_idP,frame_t frameP,uint8_t eNB_index);

void mrbch_phy_sync_failure(module_id_t module_idP, frame_t frameP,uint8_t free_eNB_index);

Raymond Knopp's avatar
 
Raymond Knopp committed
167
int mac_top_init(int eMBMS_active, char *uecap_xer,uint8_t cba_group_active, uint8_t HO_active);
168 169 170 171 172 173 174 175 176 177 178 179 180

char layer2_init_UE(module_id_t module_idP);

char layer2_init_eNB(module_id_t module_idP, uint8_t Free_ch_index);

void mac_switch_node_function(module_id_t module_idP);

int mac_init_global_param(void);

void mac_top_cleanup(void);

void mac_UE_out_of_sync_ind(module_id_t module_idP,frame_t frameP, uint16_t eNB_index);

181
void dlsch_scheduler_pre_processor_reset (int module_idP,int UE_id,
182
    uint8_t  CC_id,
183 184
    int frameP,
    int subframeP,
185 186 187 188 189
    int N_RBG,
    uint16_t nb_rbs_required[MAX_NUM_CCs][NUMBER_OF_UE_MAX],
    uint16_t  nb_rbs_required_remaining[MAX_NUM_CCs][NUMBER_OF_UE_MAX],
    unsigned char rballoc_sub[MAX_NUM_CCs][N_RBG_MAX],
    unsigned char MIMO_mode_indicator[MAX_NUM_CCs][N_RBG_MAX]);
190 191 192 193 194 195 196 197 198 199 200 201 202

// eNB functions
/* \brief This function assigns pre-available RBS to each UE in specified sub-bands before scheduling is done
@param Mod_id Instance ID of eNB
@param frame Index of frame
@param subframe Index of current subframe
@param N_RBS Number of resource block groups
 */


void dlsch_scheduler_pre_processor (module_id_t module_idP,
                                    frame_t frameP,
                                    sub_frame_t subframe,
203
                                    int N_RBG[MAX_NUM_CCs],
204
                                    int *mbsfn_flag);
205

206 207

void dlsch_scheduler_pre_processor_allocate (module_id_t   Mod_id,
208 209 210 211 212 213 214 215 216 217 218 219
    int           UE_id,
    uint8_t       CC_id,
    int           N_RBG,
    int           transmission_mode,
    int           min_rb_unit,
    uint8_t       N_RB_DL,
    uint16_t      nb_rbs_required[MAX_NUM_CCs][NUMBER_OF_UE_MAX],
    uint16_t      nb_rbs_required_remaining[MAX_NUM_CCs][NUMBER_OF_UE_MAX],
    unsigned char rballoc_sub[MAX_NUM_CCs][N_RBG_MAX],
    unsigned char MIMO_mode_indicator[MAX_NUM_CCs][N_RBG_MAX]);

/* \brief Function to trigger the eNB scheduling procedure.  It is called by PHY at the beginning of each subframe, \f$n$\f
220 221 222 223 224 225 226 227 228 229 230 231 232
   and generates all DLSCH allocations for subframe \f$n\f$ and ULSCH allocations for subframe \f$n+k$\f. The resultant DCI_PDU is
   ready after returning from this call.
@param Mod_id Instance ID of eNB
@param cooperation_flag Flag to indicated that this cell has cooperating nodes (i.e. that there are collaborative transport channels that
can be scheduled.
@param subframe Index of current subframe
@param calibration_flag Flag to indicate that eNB scheduler should schedule TDD auto-calibration PUSCH.
*/
void eNB_dlsch_ulsch_scheduler(module_id_t module_idP, uint8_t cooperation_flag, frame_t frameP, sub_frame_t subframeP);//, int calibration_flag);

/* \brief Function to retrieve result of scheduling (DCI) in current subframe.  Can be called an arbitrary numeber of times after eNB_dlsch_ulsch_scheduler
in a given subframe.
@param Mod_id Instance ID of eNB
Raymond Knopp's avatar
 
Raymond Knopp committed
233
@param CC_id Component Carrier Index
234 235 236
@param subframe Index of current subframe
@returns Pointer to generated DCI for subframe
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
237
DCI_PDU *get_dci_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subframe);
238 239 240 241

/* \brief Function to indicate a received preamble on PRACH.  It initiates the RA procedure.
@param Mod_id Instance ID of eNB
@param preamble_index index of the received RA request
242
@param timing_offset Offset in samples of the received PRACH w.r.t. eNB timing. This is used to
243
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
244
void initiate_ra_proc(module_id_t module_idP,int CC_id,frame_t frameP, uint16_t preamble_index,int16_t timing_offset,uint8_t sect_id,sub_frame_t subframe,uint8_t f_id);
245 246 247 248 249 250 251

/* \brief Function in eNB to fill RAR pdu when requested by PHY.  This provides a single RAR SDU for the moment and returns the t-CRNTI.
@param Mod_id Instance ID of eNB
@param dlsch_buffer Pointer to DLSCH input buffer
@param N_RB_UL Number of UL resource blocks
@returns t_CRNTI
*/
252 253 254 255 256 257 258 259
unsigned short fill_rar(
  const module_id_t module_idP,
  const int         CC_id,
  const frame_t     frameP,
  uint8_t   * const dlsch_buffer,
  const uint16_t    N_RB_UL,
  const uint8_t input_buffer_length
);
260 261 262 263 264

/* \brief Function to indicate a failed RA response.  It removes all temporary variables related to the initial connection of a UE
@param Mod_id Instance ID of eNB
@param preamble_index index of the received RA request.
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
265
void cancel_ra_proc(module_id_t module_idP,int CC_id,frame_t frameP, uint16_t preamble_index);
266 267 268 269 270

/* \brief Function to indicate a received SDU on ULSCH.
@param Mod_id Instance ID of eNB
@param rnti RNTI of UE transmitting the SR
@param sdu Pointer to received SDU
Raymond Knopp's avatar
 
Raymond Knopp committed
271
@param harq_pid Index of harq process corresponding to this sdu
272
@param msg3_flag flag indicating that this sdu is msg3
273
*/
274
void rx_sdu(const module_id_t module_idP, const int CC_id,const frame_t frameP, const sub_frame_t subframeP, const rnti_t rnti, uint8_t *sdu, const uint16_t sdu_len, const int harq_pid,uint8_t *msg3_flag);
275 276 277 278 279 280

/* \brief Function to indicate a scheduled schduling request (SR) was received by eNB.
@param Mod_id Instance ID of eNB
@param rnti RNTI of UE transmitting the SR
@param subframe Index of subframe where SR was received
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
281
void SR_indication(module_id_t module_idP,int CC_id,frame_t frameP,rnti_t rnti, sub_frame_t subframe);
282

Raymond Knopp's avatar
 
Raymond Knopp committed
283
uint8_t *get_dlsch_sdu(module_id_t module_idP,int CC_id,frame_t frameP,rnti_t rnti,uint8_t TBindex);
284 285 286 287 288

/* \brief Function to retrieve MCH transport block and MCS used for MCH in this MBSFN subframe.  Returns null if no MCH is to be transmitted
@param Mod_id Instance ID of eNB
@param frame Index of frame
@param subframe Index of current subframe
289
@param mcs Pointer to mcs used by PHY (to be filled by MAC)
290 291
@returns Pointer to MCH transport block and mcs for subframe
*/
292
MCH_PDU *get_mch_sdu( module_id_t Mod_id, int CC_id, frame_t frame, sub_frame_t subframe);
293 294 295 296 297 298 299 300 301 302 303


//added for ALU icic purpose
uint32_t  Get_Cell_SBMap(module_id_t module_idP);
void UpdateSBnumber(module_id_t module_idP);
//end ALU's algo


void        ue_mac_reset      (module_id_t module_idP,uint8_t eNB_index);
void        ue_init_mac       (module_id_t module_idP);
void        init_ue_sched_info(void);
Raymond Knopp's avatar
 
Raymond Knopp committed
304 305 306 307 308 309 310 311
void        add_ue_ulsch_info (module_id_t module_idP, int CC_id, int UE_id, sub_frame_t subframe,UE_ULSCH_STATUS status);
void        add_ue_dlsch_info (module_id_t module_idP, int CC_id,int UE_id, sub_frame_t subframe,UE_DLSCH_STATUS status);
int         find_UE_id        (module_id_t module_idP, rnti_t rnti) ;
rnti_t      UE_RNTI           (module_id_t module_idP, int UE_id);
int         UE_PCCID          (module_id_t module_idP, int UE_id);
uint8_t     find_active_UEs   (module_id_t module_idP);
boolean_t   is_UE_active      (module_id_t module_idP, int UE_id);
uint8_t     process_ue_cqi    (module_id_t module_idP, int UE_id);
312 313 314

int8_t find_active_UEs_with_traffic(module_id_t module_idP);

315
void set_ue_dai(sub_frame_t   subframeP,
316 317 318 319
                uint8_t       tdd_config,
                int           UE_id,
                uint8_t       CC_id,
                UE_list_t     *UE_list);
320

321
uint8_t find_num_active_UEs_in_cbagroup(module_id_t module_idP, unsigned char group_id);
Raymond Knopp's avatar
 
Raymond Knopp committed
322
uint8_t UE_is_to_be_scheduled(module_id_t module_idP,int CC_id,uint8_t UE_id);
323 324 325 326 327
/** \brief Round-robin scheduler for ULSCH traffic.
@param Mod_id Instance ID for eNB
@param subframe Subframe number on which to act
@returns UE index that is to be scheduled if needed/room
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
328
module_id_t schedule_next_ulue(module_id_t module_idP, int UE_id,sub_frame_t subframe);
329 330 331 332 333 334

/** \brief Round-robin scheduler for DLSCH traffic.
@param Mod_id Instance ID for eNB
@param subframe Subframe number on which to act
@returns UE index that is to be scheduled if needed/room
*/
335
int schedule_next_dlue(module_id_t module_idP, int CC_id, sub_frame_t subframe);
336 337 338 339 340 341 342

/* \brief Allocates a set of PRBS for a particular UE.  This is a simple function for the moment, later it should process frequency-domain CQI information and/or PMI information.  Currently it just returns the first PRBS that are available in the subframe based on the number requested.
@param UE_id Index of UE on which to act
@param nb_rb Number of PRBs allocated to UE by scheduler
@param rballoc Pointer to bit-map of current PRB allocation given to previous users/control channels.  This is updated for subsequent calls to the routine.
@returns an rballoc bitmap for resource type 0 allocation (DCI).
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
343
uint32_t allocate_prbs(int UE_id,uint8_t nb_rb, uint32_t *rballoc);
344 345

/* \fn uint32_t req_new_ulsch(module_id_t module_idP)
346
\brief check for a new transmission in any drb
347 348 349 350 351 352 353
@param Mod_id Instance id of UE in machine
@returns 1 for new transmission, 0 for none
*/
uint32_t req_new_ulsch(module_id_t module_idP);

/* \brief Get SR payload (0,1) from UE MAC
@param Mod_id Instance id of UE in machine
Raymond Knopp's avatar
 
Raymond Knopp committed
354
@param CC_id Component Carrier index
355 356 357 358 359
@param eNB_id Index of eNB that UE is attached to
@param rnti C_RNTI of UE
@param subframe subframe number
@returns 0 for no SR, 1 for SR
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
360
uint32_t ue_get_SR(module_id_t module_idP, int CC_id,frame_t frameP, uint8_t eNB_id,rnti_t rnti,sub_frame_t subframe);
361

362
uint8_t get_ue_weight(module_id_t module_idP, int CC_id, int UE_id);
363 364 365 366

// UE functions
void mac_out_of_sync_ind(module_id_t module_idP, frame_t frameP, uint16_t CH_index);

Raymond Knopp's avatar
 
Raymond Knopp committed
367
void ue_decode_si(module_id_t module_idP, int CC_id,frame_t frame, uint8_t CH_index, void *pdu, uint16_t len);
368 369


370
void ue_send_sdu(module_id_t module_idP, uint8_t CC_id,frame_t frame, uint8_t *sdu,uint16_t sdu_len,uint8_t CH_index);
371 372 373 374 375 376 377 378 379 380 381


#ifdef Rel10
/* \brief Called by PHY to transfer MCH transport block to ue MAC.
@param Mod_id Index of module instance
@param frame Frame index
@param sdu Pointer to transport block
@param sdu_len Length of transport block
@param eNB_index Index of attached eNB
@param sync_area the index of MBSFN sync area
*/
382
void ue_send_mch_sdu(module_id_t module_idP,uint8_t CC_id, frame_t frameP,uint8_t *sdu,uint16_t sdu_len,uint8_t eNB_index,uint8_t sync_area) ;
383 384 385 386 387 388 389 390 391

/*\brief Function to check if UE PHY needs to decode MCH for MAC.
@param Mod_id Index of protocol instance
@param frame Index of frame
@param subframe Index of subframe
@param eNB_index index of eNB for this MCH
@param[out] sync_area return the sync area
@param[out] mcch_active flag indicating whether this MCCH is active in this SF
*/
392
int ue_query_mch(uint8_t Mod_id,uint8_t CC_id, uint32_t frame,sub_frame_t subframe, uint8_t eNB_index, uint8_t *sync_area, uint8_t *mcch_active);
393 394 395

#endif

396
/* \brief Called by PHY to get sdu for PUSCH transmission.  It performs the following operations: Checks BSR for DCCH, DCCH1 and DTCH corresponding to previous values computed either in SR or BSR procedures.  It gets rlc status indications on DCCH,DCCH1 and DTCH and forms BSR elements and PHR in MAC header.  CRNTI element is not supported yet.  It computes transport block for up to 3 SDUs and generates header and forms the complete MAC SDU.
397 398 399 400 401 402
@param Mod_id Instance id of UE in machine
@param eNB_id Index of eNB that UE is attached to
@param rnti C_RNTI of UE
@param subframe subframe number
@returns 0 for no SR, 1 for SR
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
403
void ue_get_sdu(module_id_t module_idP, int CC_id,frame_t frameP, sub_frame_t subframe, uint8_t eNB_index,uint8_t *ulsch_buffer,uint16_t buflen,uint8_t *access_mode);
404 405 406

/* \brief Function called by PHY to retrieve information to be transmitted using the RA procedure.  If the UE is not in PUSCH mode for a particular eNB index, this is assumed to be an Msg3 and MAC attempts to retrieves the CCCH message from RRC. If the UE is in PUSCH mode for a particular eNB index and PUCCH format 0 (Scheduling Request) is not activated, the MAC may use this resource for random-access to transmit a BSR along with the C-RNTI control element (see 5.1.4 from 36.321)
@param Mod_id Index of UE instance
Raymond Knopp's avatar
 
Raymond Knopp committed
407
@param Mod_id Component Carrier Index
408 409 410
@param New_Msg3 Flag to indicate this call is for a new Msg3
@param subframe Index of subframe for PRACH transmission (0 ... 9)
@returns A pointer to a PRACH_RESOURCES_t */
Raymond Knopp's avatar
 
Raymond Knopp committed
411
PRACH_RESOURCES_t *ue_get_rach(module_id_t module_idP,int CC_id,frame_t frameP,uint8_t new_Msg3,sub_frame_t subframe);
412 413 414 415 416

/* \brief Function called by PHY to process the received RAR.  It checks that the preamble matches what was sent by the eNB and provides the timing advance and t-CRNTI.
@param Mod_id Index of UE instance
@param dlsch_buffer  Pointer to dlsch_buffer containing RAR PDU
@param t_crnti Pointer to PHY variable containing the T_CRNTI
417
@param preamble_index Preamble Index used by PHY to transmit the PRACH.  This should match the received RAR to trigger the rest of
418 419 420
random-access procedure
@returns timing advance or 0xffff if preamble doesn't match
*/
421 422 423 424 425 426 427 428 429
uint16_t
ue_process_rar(
  const module_id_t module_idP,
  const int CC_id,
  const frame_t frameP,
  uint8_t * const dlsch_buffer,
  rnti_t * const t_crnti,
  const uint8_t preamble_index
);
430 431 432


/* \brief Generate header for UL-SCH.  This function parses the desired control elements and sdus and generates the header as described
433
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
434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460
in the ULSCH buffer.
@param mac_header Pointer to the first byte of the MAC header (UL-SCH buffer)
@param num_sdus Number of SDUs in the payload
@param short_padding Number of bytes for short padding (0,1,2)
@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 power_headroom Pointer to power headroom command (NULL means not present in payload)
@param crnti Pointer to CRNTI command (NULL means not present in payload)
@param truncated_bsr Pointer to Truncated BSR command (NULL means not present in payload)
@param short_bsr Pointer to Short BSR command (NULL means not present in payload)
@param long_bsr Pointer to Long BSR command (NULL means not present in payload)
@param post_padding Number of bytes for padding at the end of MAC PDU
@returns Number of bytes used for header
*/
unsigned char generate_ulsch_header(uint8_t *mac_header,
                                    uint8_t num_sdus,
                                    uint8_t short_padding,
                                    uint16_t *sdu_lengths,
                                    uint8_t *sdu_lcids,
                                    POWER_HEADROOM_CMD *power_headroom,
                                    uint16_t *crnti,
                                    BSR_SHORT *truncated_bsr,
                                    BSR_SHORT *short_bsr,
                                    BSR_LONG *long_bsr,
                                    unsigned short post_padding);

/* \brief Parse header for UL-SCH.  This function parses the received UL-SCH header as described
461
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
462 463 464 465 466 467 468 469 470 471
in the ULSCH buffer.
@param mac_header Pointer to the first byte of the MAC header (UL-SCH buffer)
@param num_ces Number of SDUs in the payload
@param num_sdu Number of SDUs in the payload
@param rx_ces Pointer to received CEs in the header
@param rx_lcids Pointer to array of LCIDs (the order must be the same as the SDU length array)
@param rx_lengths Pointer to array of SDU lengths
@returns Pointer to payload following header
*/
uint8_t *parse_ulsch_header(uint8_t *mac_header,
472 473 474 475 476 477
                            uint8_t *num_ce,
                            uint8_t *num_sdu,
                            uint8_t *rx_ces,
                            uint8_t *rx_lcids,
                            uint16_t *rx_lengths,
                            uint16_t tx_lenght);
478 479


Raymond Knopp's avatar
 
Raymond Knopp committed
480
int l2_init(LTE_DL_FRAME_PARMS *frame_parms,int eMBMS_active, char *uecap_xer, uint8_t cba_group_active, uint8_t HO_active);
481
int mac_init(void);
Raymond Knopp's avatar
 
Raymond Knopp committed
482
int add_new_ue(module_id_t Mod_id, int CC_id, rnti_t rnti,int harq_pid);
483
int mac_remove_ue(module_id_t Mod_id, int UE_id,int frameP, sub_frame_t subframeP);
484

485 486 487 488 489

int maxround(module_id_t Mod_id,uint16_t rnti,int frame,sub_frame_t subframe,uint8_t ul_flag);
void swap_UEs(UE_list_t *listP,int nodeiP, int nodejP, int ul_flag);
int prev(UE_list_t *listP, int nodeP, int ul_flag);
void dump_ue_list(UE_list_t *listP, int ul_flag);
490 491 492 493
int UE_num_active_CC(UE_list_t *listP,int ue_idP);
int UE_PCCID(module_id_t mod_idP,int ue_idP);
rnti_t UE_RNTI(module_id_t mod_idP, int ue_idP);

494 495 496 497 498 499 500

void ulsch_scheduler_pre_processor(module_id_t module_idP, int frameP, sub_frame_t subframeP, uint16_t *first_rb, uint8_t  aggregattion, uint32_t *nCCE);
void store_ulsch_buffer(module_id_t module_idP, int frameP, sub_frame_t subframeP);
void sort_ue_ul (module_id_t module_idP,int frameP, sub_frame_t subframeP);
void assign_max_mcs_min_rb(module_id_t module_idP,int frameP, sub_frame_t subframeP,uint16_t *first_rb);
void adjust_bsr_info(int buffer_occupancy, uint16_t TBS, UE_TEMPLATE *UE_template);

501
/*! \fn  UE_L2_state_t ue_scheduler(const module_id_t module_idP,const frame_t frameP, const sub_frame_t subframe, const lte_subframe_t direction,const uint8_t eNB_index)
502
   \brief UE scheduler where all the ue background tasks are done.  This function performs the following:  1) Trigger PDCP every 5ms 2) Call RRC for link status return to PHY3) Perform SR/BSR procedures for scheduling feedback 4) Perform PHR procedures.
503 504 505 506 507 508
\param[in] module_idP instance of the UE
\param[in] subframe t the subframe number
\param[in] direction  subframe direction
\param[in] eNB_index  instance of eNB
@returns L2 state (CONNETION_OK or CONNECTION_LOST or PHY_RESYNCH)
*/
509 510 511 512 513 514 515
UE_L2_STATE_t ue_scheduler(
  const module_id_t module_idP,
  const frame_t frameP,
  const sub_frame_t subframe,
  const lte_subframe_t direction,
  const uint8_t eNB_index,
  const int CC_id);
516

517
/*! \fn  int cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8_t eNB_index,uint16_t buflen);
518 519 520 521 522
\brief determine whether to use cba resource to transmit or not
\param[in] Mod_id instance of the UE
\param[in] frame the frame number
\param[in] subframe the subframe number
\param[in] eNB_index instance of eNB
523
\param[out] access(1) or postpone (0)
524
*/
525
int cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8_t eNB_index,uint16_t buflen);
526 527 528 529 530 531 532 533

/*! \fn  int get_bsr_lcgid (module_id_t module_idP);
\brief determine the lcgid for the bsr
\param[in] Mod_id instance of the UE
\param[out] lcgid
*/
int get_bsr_lcgid (module_id_t module_idP);

Raymond Knopp's avatar
 
Raymond Knopp committed
534
/*! \fn  uint8_t get_bsr_len (module_id_t module_idP,uint16_t bufflen);
535
\brief determine whether the bsr is short or long assuming that the MAC pdu is built
536 537
\param[in] Mod_id instance of the UE
\param[in] bufflen size of phy transport block
538
\param[out] bsr_len size of bsr control element
539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558
*/
uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen);

/*! \fn  BSR_SHORT *  get_bsr_short(module_id_t module_idP, uint8_t bsr_len)
\brief get short bsr level
\param[in] Mod_id instance of the UE
\param[in] bsr_len indicator for no, short, or long bsr
\param[out] bsr_s pointer to short bsr
*/
BSR_SHORT *get_bsr_short(module_id_t module_idP, uint8_t bsr_len);

/*! \fn  BSR_LONG * get_bsr_long(module_id_t module_idP, uint8_t bsr_len)
\brief get long bsr level
\param[in] Mod_id instance of the UE
\param[in] bsr_len indicator for no, short, or long bsr
\param[out] bsr_l pointer to long bsr
*/
BSR_LONG * get_bsr_long(module_id_t module_idP, uint8_t bsr_len);

/*! \fn  boolean_t update_bsr(module_id_t module_idP, frame_t frameP, uint8_t lcid)
559
   \brief get the rlc stats and update the bsr level for each lcid
560 561 562 563
\param[in] Mod_id instance of the UE
\param[in] frame Frame index
\param[in] lcid logical channel identifier
*/
564
boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_index, uint8_t lcid, uint8_t lcgid);
565 566

/*! \fn  locate (int *table, int size, int value)
567
   \brief locate the BSR level in the table as defined in 36.321. This function requires that he values in table to be monotonic, either increasing or decreasing. The returned value is not less than 0, nor greater than n-1, where n is the size of table.
568 569
\param[in] *table Pointer to BSR table
\param[in] size Size of the table
570
\param[in] value Value of the buffer
571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617
\return the index in the BSR_LEVEL table
*/
uint8_t locate (const uint32_t *table, int size, int value);


/*! \fn  int get_sf_periodicBSRTimer(uint8_t periodicBSR_Timer)
   \brief get the number of subframe from the periodic BSR timer configured by the higher layers
\param[in] periodicBSR_Timer timer for periodic BSR
\return the number of subframe
*/
int get_sf_periodicBSRTimer(uint8_t bucketSize);

/*! \fn  int get_ms_bucketsizeduration(uint8_t bucketSize)
   \brief get the time in ms form the bucket size duration configured by the higher layer
\param[in]  bucketSize the bucket size duration
\return the time in ms
*/
int get_ms_bucketsizeduration(uint8_t bucketsizeduration);

/*! \fn  int get_sf_retxBSRTimer(uint8_t retxBSR_Timer)
   \brief get the number of subframe form the bucket size duration configured by the higher layer
\param[in]  retxBSR_Timer timer for regular BSR
\return the time in sf
*/
int get_sf_retxBSRTimer(uint8_t retxBSR_Timer);

/*! \fn  int get_sf_perioidicPHR_Timer(uint8_t perioidicPHR_Timer){
   \brief get the number of subframe form the periodic PHR timer configured by the higher layer
\param[in]  perioidicPHR_Timer timer for reguluar PHR
\return the time in sf
*/
int get_sf_perioidicPHR_Timer(uint8_t perioidicPHR_Timer);

/*! \fn  int get_sf_prohibitPHR_Timer(uint8_t prohibitPHR_Timer)
   \brief get the number of subframe form the prohibit PHR duration configured by the higher layer
\param[in]  prohibitPHR_Timer timer for  PHR
\return the time in sf
*/
int get_sf_prohibitPHR_Timer(uint8_t prohibitPHR_Timer);

/*! \fn  int get_db_dl_PathlossChange(uint8_t dl_PathlossChange)
   \brief get the db form the path loss change configured by the higher layer
\param[in]  dl_PathlossChange path loss for PHR
\return the pathloss in db
*/
int get_db_dl_PathlossChange(uint8_t dl_PathlossChange);

Raymond Knopp's avatar
 
Raymond Knopp committed
618
/*! \fn  uint8_t get_phr_mapping (module_id_t module_idP, int CC_id,uint8_t eNB_index)
619 620
   \brief get phr mapping as described in 36.313
\param[in]  Mod_id index of eNB
Raymond Knopp's avatar
 
Raymond Knopp committed
621
\param[in] CC_id Component Carrier Index
622 623
\return phr mapping
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
624
uint8_t get_phr_mapping (module_id_t module_idP, int CC_id, uint8_t eNB_index);
625 626 627 628

/*! \fn  void update_phr (module_id_t module_idP)
   \brief update/reset the phr timers
\param[in]  Mod_id index of eNB
Raymond Knopp's avatar
 
Raymond Knopp committed
629
\param[in] CC_id Component carrier index
630 631
\return void
*/
Raymond Knopp's avatar
 
Raymond Knopp committed
632
void update_phr (module_id_t module_idP,int CC_id);
633 634 635 636 637

/*! \brief Function to indicate Msg3 transmission/retransmission which initiates/reset Contention Resolution Timer
\param[in] Mod_id Instance index of UE
\param[in] eNB_id Index of eNB
*/
638
void Msg3_tx(module_id_t module_idP,uint8_t CC_id,frame_t frameP,uint8_t eNB_id);
639 640 641 642 643 644 645


/*! \brief Function to indicate the transmission of msg1/rach
\param[in] Mod_id Instance index of UE
\param[in] eNB_id Index of eNB
*/

646
void Msg1_tx(module_id_t module_idP,uint8_t CC_id,frame_t frameP, uint8_t eNB_id);
647 648 649 650 651 652 653 654 655 656 657 658

void dl_phy_sync_success(module_id_t   module_idP,
                         frame_t       frameP,
                         unsigned char eNB_index,
                         uint8_t first_sync);

int dump_eNB_l2_stats(char *buffer, int length);

double uniform_rngen(int min, int max);


void add_common_dci(DCI_PDU *DCI_pdu,
659 660 661 662 663 664 665
                    void *pdu,
                    rnti_t rnti,
                    unsigned char dci_size_bytes,
                    unsigned char aggregation,
                    unsigned char dci_size_bits,
                    unsigned char dci_fmt,
                    uint8_t ra_flag);
666 667 668

uint32_t allocate_prbs_sub(int nb_rb, uint8_t *rballoc);

669 670 671 672
void update_ul_dci(module_id_t module_idP,uint8_t CC_id,rnti_t rnti,uint8_t dai);

int get_min_rb_unit(module_id_t module_idP, uint8_t CC_id);

673
/* \brief Generate header for DL-SCH.  This function parses the desired control elements and sdus and generates the header as described
674
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
675 676 677 678 679
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)
680
@param drx_cmd dicontinous reception command
681 682 683
@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)
684
@param post_padding number of bytes for padding at the end of MAC PDU
685 686 687
@returns Number of bytes used for header
*/
unsigned char generate_dlsch_header(unsigned char *mac_header,
688 689 690 691 692 693 694 695
                                    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);
696 697 698

/** \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
699
@param CC_id Component Carrier of the eNB
700
@param eNB_flag Indicates if this is a eNB or UE configuration
701
@param rntiP id of UE if this is an eNB configuration
702 703 704 705 706
@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)
707
@param logicalChannelIdentity Logical channel identity index of corresponding logical channel config
708 709 710 711 712 713 714 715 716 717 718 719
@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)
@param mobilityControlInfo mobility control info received for Handover
@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)
*/
int rrc_mac_config_req(module_id_t     module_idP,
720
                       int             CC_id,
721
                       eNB_flag_t eNB_flag,
722
                       rnti_t          rntiP,
723 724 725 726
                       uint8_t         eNB_index,
                       RadioResourceConfigCommonSIB_t *radioResourceConfigCommon,
                       struct PhysicalConfigDedicated *physicalConfigDedicated,
#ifdef Rel10
727 728
                       SCellToAddMod_r10_t *sCellToAddMod_r10,
                       //struct PhysicalConfigDedicatedSCell_r10 *physicalConfigDedicatedSCell_r10,
729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
#endif
                       MeasObjectToAddMod_t **measObj,
                       MAC_MainConfig_t *mac_MainConfig,
                       long logicalChannelIdentity,
                       LogicalChannelConfig_t *logicalChannelConfig,
                       MeasGapConfig_t *measGapConfig,
                       TDD_Config_t *tdd_Config,
                       MobilityControlInfo_t *mobilityControlInfo,
                       uint8_t *SIwindowsize,
                       uint16_t *SIperiod,
                       ARFCN_ValueEUTRA_t *ul_CarrierFreq,
                       long *ul_Bandwidth,
                       AdditionalSpectrumEmission_t *additionalSpectrumEmission,
                       struct MBSFN_SubframeConfigList *mbsfn_SubframeConfigList
#ifdef Rel10
                       ,
                       uint8_t MBMS_Flag,
                       MBSFN_AreaInfoList_r9_t *mbsfn_AreaInfoList,
                       PMCH_InfoList_r9_t *pmch_InfoList

#endif
#ifdef CBA
                       ,
                       uint8_t num_active_cba_groups,
                       uint16_t cba_rnti
#endif
755
                      );
756

757 758 759
// Assign the new c-rnti in the UE context (during HO)
void rrc_mac_get_new_crnti(protocol_ctxt_t* ctxt_pP,uint8_t eNB_index);

760 761 762 763 764 765 766
/** \brief get the estimated UE distance from the PHY->MAC layer.
@param Mod_id Instance ID of eNB
@param UE_id Index of UE if this is an eNB configuration
@param CC_id Component Carrier Index
@param loc_type localization type: time-based or power-based
@return the estimated distance in meters
 */
767
double
768 769 770 771
rrc_get_estimated_ue_distance(
  const protocol_ctxt_t * const ctxt_pP,
  const int         CC_idP,
  const uint8_t     loc_typeP);
772

773

774
#endif
775
/** @}*/