eNB_scheduler_RA.c 20.1 KB
Newer Older
Raymond Knopp's avatar
 
Raymond Knopp committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
/*******************************************************************************
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom

    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.


    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.

    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/>.

  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
24
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
Raymond Knopp's avatar
 
Raymond Knopp committed
25 26 27

  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.

Lionel Gauthier's avatar
 
Lionel Gauthier committed
28
 *******************************************************************************/
Raymond Knopp's avatar
 
Raymond Knopp committed
29

30
/*! \file eNB_scheduler_RA.c
31
 * \brief primitives used for random access
Raymond Knopp's avatar
 
Raymond Knopp committed
32 33 34 35 36 37 38 39 40
 * \author  Navid Nikaein and Raymond Knopp
 * \date 2010 - 2014
 * \email: navid.nikaein@eurecom.fr
 * \version 1.0
 * @ingroup _mac

 */

#include "assertions.h"
41
#include "platform_types.h"
Raymond Knopp's avatar
 
Raymond Knopp committed
42 43
#include "PHY/defs.h"
#include "PHY/extern.h"
Lionel Gauthier's avatar
Lionel Gauthier committed
44
#include "msc.h"
Raymond Knopp's avatar
 
Raymond Knopp committed
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

#include "SCHED/defs.h"
#include "SCHED/extern.h"

#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/extern.h"

#include "LAYER2/MAC/proto.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"

#include "RRC/LITE/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"

//#include "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"

#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif

69
#include "SIMULATION/TOOLS/defs.h" // for taus
Raymond Knopp's avatar
 
Raymond Knopp committed
70

71 72
void schedule_RA(module_id_t module_idP,frame_t frameP, sub_frame_t subframeP,unsigned char Msg3_subframe,unsigned int *nprb,unsigned int *nCCE)
{
Raymond Knopp's avatar
 
Raymond Knopp committed
73

74 75
  int CC_id;
  eNB_MAC_INST *eNB = &eNB_mac_inst[module_idP];
Lionel Gauthier's avatar
 
Lionel Gauthier committed
76 77


78 79 80 81 82 83 84
  RA_TEMPLATE *RA_template;
  unsigned char i;//,harq_pid,round;
  int16_t rrc_sdu_length;
  unsigned char lcid,offset;
  module_id_t UE_id= UE_INDEX_INVALID;
  unsigned short TBsize = -1;
  unsigned short msg4_padding,msg4_post_padding,msg4_header;
Lionel Gauthier's avatar
 
Lionel Gauthier committed
85

86
  start_meas(&eNB->schedule_ra);
Lionel Gauthier's avatar
 
Lionel Gauthier committed
87

88
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
Lionel Gauthier's avatar
 
Lionel Gauthier committed
89

90
    RA_template = (RA_TEMPLATE *)&eNB->common_channels[CC_id].RA_template[0];
Lionel Gauthier's avatar
 
Lionel Gauthier committed
91

92
    for (i=0; i<NB_RA_PROC_MAX; i++) {
Lionel Gauthier's avatar
 
Lionel Gauthier committed
93

94
      if (RA_template[i].RA_active == TRUE) {
Lionel Gauthier's avatar
 
Lionel Gauthier committed
95

96 97
        LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d RA %d is active (generate RAR %d, generate_Msg4 %d, wait_ack_Msg4 %d, rnti %x)\n",
              module_idP,CC_id,i,RA_template[i].generate_rar,RA_template[i].generate_Msg4,RA_template[i].wait_ack_Msg4, RA_template[i].rnti);
98 99 100 101 102 103 104 105 106 107 108 109 110 111

        if (RA_template[i].generate_rar == 1) {
          nprb[CC_id]= nprb[CC_id] + 3;
          nCCE[CC_id] = nCCE[CC_id] + 4;
          RA_template[i].Msg3_subframe=Msg3_subframe;
        } else if (RA_template[i].generate_Msg4 == 1) {

          // check for Msg4 Message
          UE_id = find_UE_id(module_idP,RA_template[i].rnti);

          if (Is_rrc_registered == 1) {

            // Get RRCConnectionSetup for Piggyback
            rrc_sdu_length = mac_rrc_data_req(module_idP,
112
                                              CC_id,
113
                                              frameP,
114 115
                                              CCCH,
                                              1, // 1 transport block
116
                                              &eNB->common_channels[CC_id].CCCH_pdu.payload[0],
117
                                              ENB_FLAG_YES,
118 119 120 121 122 123 124 125 126 127 128
                                              module_idP,
                                              0); // not used in this case

            if (rrc_sdu_length == -1) {
              mac_xface->macphy_exit("[MAC][eNB Scheduler] CCCH not allocated\n");
              return; // not reached
            } else {
              //msg("[MAC][eNB %d] Frame %d, subframeP %d: got %d bytes from RRC\n",module_idP,frameP, subframeP,rrc_sdu_length);
            }
          }

129 130
          LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: UE_id %d, Is_rrc_registered %d, rrc_sdu_length %d\n",
                module_idP, CC_id, frameP, subframeP,UE_id, Is_rrc_registered,rrc_sdu_length);
131 132

          if (rrc_sdu_length>0) {
133 134
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: Generating Msg4 with RRC Piggyback (RA proc %d, RNTI %x)\n",
                  module_idP, CC_id, frameP, subframeP,i,RA_template[i].rnti);
135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171

            //msg("[MAC][eNB %d][RAPROC] Frame %d, subframeP %d: Received %d bytes for Msg4: \n",module_idP,frameP,subframeP,rrc_sdu_length);
            //    for (j=0;j<rrc_sdu_length;j++)
            //      msg("%x ",(unsigned char)eNB_mac_inst[module_idP][CC_id].CCCH_pdu.payload[j]);
            //    msg("\n");
            //    msg("[MAC][eNB] Frame %d, subframeP %d: Generated DLSCH (Msg4) DCI, format 1A, for UE %d\n",frameP, subframeP,UE_id);
            // Schedule Reflection of Connection request



            // Compute MCS for 3 PRB
            msg4_header = 1+6+1;  // CR header, CR CE, SDU header

            if (mac_xface->lte_frame_parms->frame_type == TDD) {

              switch (mac_xface->lte_frame_parms->N_RB_DL) {
              case 6:
                ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_1_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
Lionel Gauthier's avatar
 
Lionel Gauthier committed
172
                }
173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301

                break;

              case 25:

                ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_5MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }

                break;

              case 50:

                ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_10MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }

                break;

              case 100:

                ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_20MHz_TDD_1_6_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }

                break;
              }
            } else { // FDD DCI
              switch (mac_xface->lte_frame_parms->N_RB_DL) {
              case 6:
                ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_1_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }

                break;

              case 25:
                ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_5MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
Lionel Gauthier's avatar
 
Lionel Gauthier committed
302
                }
Raymond Knopp's avatar
 
Raymond Knopp committed
303

304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327
                break;

              case 50:
                ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_10MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }
Raymond Knopp's avatar
 
Raymond Knopp committed
328

329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352
                break;

              case 100:
                ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->ndi=1;

                if ((rrc_sdu_length+msg4_header) <= 22) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=4;
                  TBsize = 22;
                } else if ((rrc_sdu_length+msg4_header) <= 28) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=5;
                  TBsize = 28;
                } else if ((rrc_sdu_length+msg4_header) <= 32) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=6;
                  TBsize = 32;
                } else if ((rrc_sdu_length+msg4_header) <= 41) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=7;
                  TBsize = 41;
                } else if ((rrc_sdu_length+msg4_header) <= 49) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=8;
                  TBsize = 49;
                } else if ((rrc_sdu_length+msg4_header) <= 57) {
                  ((DCI1A_20MHz_FDD_t*)&RA_template[i].RA_alloc_pdu2[0])->mcs=9;
                  TBsize = 57;
                }
353

354 355 356
                break;
              }
            }
Lionel Gauthier's avatar
 
Lionel Gauthier committed
357 358

            RA_template[i].generate_Msg4=0;
359 360 361 362 363 364 365 366 367 368 369 370 371
            RA_template[i].generate_Msg4_dci=1;
            RA_template[i].wait_ack_Msg4=1;
            RA_template[i].RA_active = FALSE;
            lcid=0;

            if ((TBsize - rrc_sdu_length - msg4_header) <= 2) {
              msg4_padding = TBsize - rrc_sdu_length - msg4_header;
              msg4_post_padding = 0;
            } else {
              msg4_padding = 0;
              msg4_post_padding = TBsize - rrc_sdu_length - msg4_header -1;
            }

372 373
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d subframeP %d Msg4 : TBS %d, sdu_len %d, msg4_header %d, msg4_padding %d, msg4_post_padding %d\n",
                  module_idP,CC_id,frameP,subframeP,TBsize,rrc_sdu_length,msg4_header,msg4_padding,msg4_post_padding);
374 375 376 377 378 379 380 381 382 383 384 385 386 387 388
            DevAssert( UE_id != UE_INDEX_INVALID ); // FIXME not sure how to gracefully return
            offset = generate_dlsch_header((unsigned char*)eNB->UE_list.DLSCH_pdu[CC_id][0][(unsigned char)UE_id].payload[0],
                                           1,                           //num_sdus
                                           (unsigned short*)&rrc_sdu_length,             //
                                           &lcid,                       // sdu_lcid
                                           255,                         // no drx
                                           0,                           // no timing advance
                                           RA_template[i].cont_res_id,  // contention res id
                                           msg4_padding,                // no padding
                                           msg4_post_padding);

            memcpy((void*)&eNB->UE_list.DLSCH_pdu[CC_id][0][(unsigned char)UE_id].payload[0][(unsigned char)offset],
                   &eNB->common_channels[CC_id].CCCH_pdu.payload[0],
                   rrc_sdu_length);

389 390 391 392
            if (opt_enabled==1) {
              trace_pdu(1, (uint8_t *)eNB->UE_list.DLSCH_pdu[CC_id][0][(unsigned char)UE_id].payload[0],
                        rrc_sdu_length, UE_id, 3, UE_RNTI(module_idP, UE_id),
                        eNB->subframe,0,0);
393 394
              LOG_D(OPT,"[eNB %d][DLSCH] CC_id %d Frame %d trace pdu for rnti %x with size %d\n",
                    module_idP, CC_id, frameP, UE_RNTI(module_idP,UE_id), rrc_sdu_length);
395
            }
396

397 398 399 400 401
            nprb[CC_id]= nprb[CC_id] + 3;
            nCCE[CC_id] = nCCE[CC_id] + 4;
          }

          //try here
Lionel Gauthier's avatar
 
Lionel Gauthier committed
402
        }
403 404 405 406 407 408 409 410 411 412 413 414 415 416

        /*
        else if (eNB_mac_inst[module_idP][CC_id].RA_template[i].wait_ack_Msg4==1) {
        // check HARQ status and retransmit if necessary
        LOG_I(MAC,"[eNB %d][RAPROC] Frame %d, subframeP %d: Checking if Msg4 was acknowledged :\n",module_idP,frameP,subframeP);
        // Get candidate harq_pid from PHY
        mac_xface->get_ue_active_harq_pid(module_idP,eNB_mac_inst[module_idP][CC_id].RA_template[i].rnti,subframeP,&harq_pid,&round,0);
        if (round>0) {
         *nprb= (*nprb) + 3;
         *nCCE = (*nCCE) + 4;
        }
        }
         */
      }
Raymond Knopp's avatar
 
Raymond Knopp committed
417
    }
418
  }
Raymond Knopp's avatar
 
Raymond Knopp committed
419

420 421
  stop_meas(&eNB->schedule_ra);
}
Lionel Gauthier's avatar
 
Lionel Gauthier committed
422

423 424
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 subframeP,
                      uint8_t f_id)
425 426 427 428 429
{

  uint8_t i;
  RA_TEMPLATE *RA_template = (RA_TEMPLATE *)&eNB_mac_inst[module_idP].common_channels[CC_id].RA_template[0];

430
  LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d Initiating RA procedure for preamble index %d\n",module_idP,CC_id,frameP,preamble_index);
431 432 433 434 435 436 437 438 439 440 441 442

  for (i=0; i<NB_RA_PROC_MAX; i++) {
    if (RA_template[i].RA_active==FALSE) {
      RA_template[i].RA_active=TRUE;
      RA_template[i].generate_rar=1;
      RA_template[i].generate_Msg4=0;
      RA_template[i].wait_ack_Msg4=0;
      RA_template[i].timing_offset=timing_offset;
      // Put in random rnti (to be replaced with proper procedure!!)
      RA_template[i].rnti = taus();
      RA_template[i].RA_rnti = 1+subframeP+(10*f_id);
      RA_template[i].preamble_index = preamble_index;
443 444
      LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d Activating RAR generation for process %d, rnti %x, RA_active %d\n",
            module_idP,CC_id,frameP,i,RA_template[i].rnti,
445 446 447 448 449 450
            RA_template[i].RA_active);

      return;
    }
  }
}
Lionel Gauthier's avatar
 
Lionel Gauthier committed
451

452 453 454 455 456
void cancel_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP, rnti_t rnti)
{
  unsigned char i;
  RA_TEMPLATE *RA_template = (RA_TEMPLATE *)&eNB_mac_inst[module_idP].common_channels[CC_id].RA_template[0];

Lionel Gauthier's avatar
Lionel Gauthier committed
457
  MSC_LOG_EVENT(MSC_PHY_ENB, "RA Cancelling procedure ue %"PRIx16" ", rnti);
458
  LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d Cancelling RA procedure for UE rnti %x\n",module_idP,CC_id,frameP,rnti);
459 460 461 462 463 464 465 466 467 468

  for (i=0; i<NB_RA_PROC_MAX; i++) {
    if (rnti == RA_template[i].rnti) {
      RA_template[i].RA_active=FALSE;
      RA_template[i].generate_rar=0;
      RA_template[i].generate_Msg4=0;
      RA_template[i].wait_ack_Msg4=0;
      RA_template[i].timing_offset=0;
      RA_template[i].RRC_timer=20;
      RA_template[i].rnti = 0;
Raymond Knopp's avatar
 
Raymond Knopp committed
469
    }
470
  }
Raymond Knopp's avatar
 
Raymond Knopp committed
471 472
}