src/5gnrsch/sch_drx.c

   1
   2 /*******************************************************************************
   3 ################################################################################
   4 #   Copyright (c) [2017-2019] [Radisys]                                        #
   5 #                                                                              #
   6 #   Licensed under the Apache License, Version 2.0 (the "License");            #
   7 #   you may not use this file except in compliance with the License.           #
   8 #   You may obtain a copy of the License at                                    #
   9 #                                                                              #
  10 #       http://www.apache.org/licenses/LICENSE-2.0                             #
  11 #                                                                              #
  12 #   Unless required by applicable law or agreed to in writing, software        #
  13 #   distributed under the License is distributed on an "AS IS" BASIS,          #
  14 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
  15 #   See the License for the specific language governing permissions and        #
  16 #   limitations under the License.                                             #
  17 ################################################################################
  18  *******************************************************************************/
  19 #ifdef NR_DRX
  20 #include "common_def.h"
  21 #include "tfu.h"
  22 #include "lrg.h"
  23 #include "tfu.x"
  24 #include "lrg.x"
  25 #include "du_log.h"
  26 #include "du_app_mac_inf.h"
  27 #include "mac_sch_interface.h"
  28 #include "sch.h"
  29 #include "sch_utils.h"
  30 #include "sch_drx.h"
  31
  32 /**
  33  * @brief intialize the SchDrxHarqCb structre
  34  *
  35  * @details
  36  *
  37  *     Function :schInitDrxHarqCb
  38  *
  39  *     intialize the SchDrxHarqCb structre
  40  *
  41  *  @param[in] SchDrxHarqCb *hqCb
  42  *  @return
  43  *      -# ROK
  44  *      -# RFAILED
  45  **/
  46
  47 void schInitDrxHarqCb(SchDrxHarqCb *hqDrxCb)
  48 {
  49    memset(hqDrxCb, 0, sizeof(SchDrxHarqCb));
  50    hqDrxCb->retxExpDistance  = SCH_DRX_INVALID_DISTANCE;
  51    hqDrxCb->retxStrtIndex    = SCH_DRX_INVALID_INDEX;
  52    hqDrxCb->rttIndex         = SCH_DRX_INVALID_INDEX;
  53    hqDrxCb->retxIndex        = SCH_DRX_INVALID_INDEX;
  54 }
  55
  56 /**
  57  * @brief intialize the SchDrxUeCb structre
  58  *
  59  * @details
  60  *
  61  *     Function : schInitDrxUeCb
  62  *
  63  *     intialize the SchDrxUeCb structre
  64  *
  65  *  @param[in]  SchUeCb *ueCb
  66  *  @return
  67  *      -# ROK
  68  *      -# RFAILED
  69  **/
  70
  71 void schInitDrxUeCb(SchUeCb *ueCb)
  72 {
  73    memset(&ueCb->drxUeCb, 0, sizeof(SchDrxUeCb));
  74    ueCb->drxUeCb.onDurationStartIndex  = SCH_DRX_INVALID_INDEX;
  75    ueCb->drxUeCb.onDurationExpiryIndex = SCH_DRX_INVALID_INDEX;
  76    ueCb->drxUeCb.inActvExpiryIndex     = SCH_DRX_INVALID_INDEX;
  77    ueCb->drxUeCb.shortCycleExpiryIndex = SCH_DRX_INVALID_INDEX;
  78    ueCb->drxUeCb.onDurationStartDistance = SCH_DRX_INVALID_DISTANCE;
  79    ueCb->drxUeCb.onDurationExpiryDistance = SCH_DRX_INVALID_DISTANCE;
  80    ueCb->drxUeCb.inActiveTmrExpiryDistance = SCH_DRX_INVALID_DISTANCE;
  81    ueCb->drxUeCb.drxDlUeActiveStatus = 0;
  82    ueCb->drxUeCb.drxUlUeActiveStatus = 0;
  83 }
  84
  85 /* will uncomment this function in next gerrit */
  86 #if 0
  87 /**
  88  * @brief delete Dl harq drx timers and information
  89  *
  90  * @details
  91  *
  92  *     Function : schDeleteDlHarqDrxTimer
  93  *
  94  *     delete Dl harq drx timers and information
  95  *
  96  *  @param[in] SchCellCb  *cell, SchUeCb *ueCb
  97  *  @return
  98  *      -# ROK
  99  *      -# RFAILED
 100  **/
 101  void schDeleteDlHarqDrxTimer(SchCellCb  *cell, SchDlHqEnt *dlHqEnt)
 102  {
 103     uint8_t idx, numHqPrcs;
 104     uint16_t tmrIdx = 0;
 105     SchDlHqProcCb *procs;
 106     CmLList  *node = NULLP;
 107
 108     numHqPrcs = dlHqEnt->numHqPrcs;
 109     for(idx =0; idx<numHqPrcs; idx++)
 110     {
 111        procs = &dlHqEnt->procs[idx];
 112        tmrIdx = procs->dlDrxHarqCb.retxStrtIndex;
 113        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].dlRetransTmrStartList, node);
 114        if(node)
 115        {
 116           cmLListDelFrm(&cell->drxCb[tmrIdx].dlRetransTmrStartList, node);
 117           SCH_FREE(node, sizeof(CmLList));
 118        }
 119
 120        tmrIdx = procs->dlDrxHarqCb.rttIndex;
 121        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].dlHarqRttExpiryList, node);
 122        if(node)
 123        {
 124           cmLListDelFrm(&cell->drxCb[tmrIdx].dlHarqRttExpiryList, node);
 125           SCH_FREE(node, sizeof(CmLList));
 126        }
 127
 128        tmrIdx = procs->dlDrxHarqCb.retxIndex;
 129        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].dlRetransExpiryList, node);
 130        if(node)
 131        {
 132           cmLListDelFrm(&cell->drxCb[tmrIdx].dlRetransExpiryList, node);
 133           SCH_FREE(node, sizeof(CmLList));
 134        }
 135        schInitDrxHarqCb(&procs->dlDrxHarqCb);
 136     }
 137  }
 138
 139 /**
 140  * @brief delete UL harq drx timers and information
 141  *
 142  * @details
 143  *
 144  *     Function : schDeleteUlHarqDrxTimer
 145  *
 146  *     delete Ul harq drx timers and information
 147  *
 148  *  @param[in] SchCellCb  *cell, SchUeCb *ueCb
 149  *  @return
 150  *      -# ROK
 151  *      -# RFAILED
 152  **/
 153  void schDeleteUlHarqDrxTimer(SchCellCb  *cell, SchUlHqEnt *ulHqEnt)
 154  {
 155     uint8_t idx, numHqPrcs;
 156     uint16_t tmrIdx = 0;
 157     CmLList  *node = NULLP;
 158     SchUlHqProcCb *procs;
 159
 160     numHqPrcs = ulHqEnt->numHqPrcs;
 161     for(idx =0; idx<numHqPrcs; idx++)
 162     {
 163        procs = &ulHqEnt->procs[idx];
 164        tmrIdx = procs->ulDrxHarqCb.retxStrtIndex;
 165        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].ulRetransTmrStartList, node);
 166        if(node)
 167        {
 168           cmLListDelFrm(&cell->drxCb[tmrIdx].ulRetransTmrStartList, node);
 169           SCH_FREE(node, sizeof(CmLList));
 170        }
 171
 172        tmrIdx = procs->ulDrxHarqCb.rttIndex;
 173        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].ulHarqRttExpiryList, node);
 174        if(node)
 175        {
 176           cmLListDelFrm(&cell->drxCb[tmrIdx].ulHarqRttExpiryList, node);
 177           SCH_FREE(node, sizeof(CmLList));
 178        }
 179
 180        tmrIdx = procs->ulDrxHarqCb.retxIndex;
 181        CM_LLIST_FIRST_NODE(&cell->drxCb[tmrIdx].ulRetransExpiryList, node);
 182        if(node)
 183        {
 184           cmLListDelFrm(&cell->drxCb[tmrIdx].ulRetransExpiryList, node);
 185           SCH_FREE(node, sizeof(CmLList));
 186        }
 187        schInitDrxHarqCb(&procs->ulDrxHarqCb);
 188     }
 189  }
 190 #endif
 191
 192 /**
 193  * @brief delete UE drx timers and information
 194  *
 195  * @details
 196  *
 197  *     Function : schDeleteUeDrxInfo
 198  *
 199  *     delete UE drx timers and information
 200  *
 201  *  @param[in] SchCellCb  *cell, SchUeCb *ueCb
 202  *  @return  void
 203  *
 204  **/
 205
 206 void schDeleteUeDrxInfo(SchCellCb  *cell, SchUeCb *ueCb)
 207 {
 208    SchDrxUeCb *drxUeCb;
 209
 210    if(ueCb->ueDrxInfoPres == true)
 211    {
 212       drxUeCb = &ueCb->drxUeCb;
 213
 214       /* delete on duration start timer from ueCb */
 215       if(drxUeCb->onDurationStartIndex != SCH_DRX_INVALID_INDEX)
 216       {
 217          cmLListDelFrm(&cell->drxCb[drxUeCb->onDurationStartIndex].onDurationStartList, drxUeCb->onDurationStartNodeInfo);
 218          SCH_FREE(drxUeCb->onDurationStartNodeInfo, sizeof(CmLList));
 219       }
 220
 221       /* delete on duration expiry timer from ueCb */
 222       if(drxUeCb->onDurationExpiryIndex != SCH_DRX_INVALID_INDEX)
 223       {
 224          cmLListDelFrm(&cell->drxCb[drxUeCb->onDurationExpiryIndex].onDurationExpiryList, drxUeCb->onDurationExpiryNodeInfo);
 225          SCH_FREE(drxUeCb->onDurationExpiryNodeInfo, sizeof(CmLList));
 226       }
 227
 228       /* delete inActv Expiry Index timer from ueCb */
 229       if(drxUeCb->inActvExpiryIndex != SCH_DRX_INVALID_INDEX)
 230       {
 231          cmLListDelFrm(&cell->drxCb[drxUeCb->inActvExpiryIndex].inActvTmrExpiryList, drxUeCb->inActvTimerExpiryNodeInfo);
 232          SCH_FREE(drxUeCb->inActvTimerExpiryNodeInfo, sizeof(CmLList));
 233       }
 234
 235       /* delete short cycle expiry timer from ueCb */
 236       if(drxUeCb->shortCycleExpiryIndex != SCH_DRX_INVALID_INDEX)
 237       {
 238          cmLListDelFrm(&cell->drxCb[drxUeCb->shortCycleExpiryIndex].shortCycleExpiryList, drxUeCb->shortCycleTmrExpiryNodeInfo);
 239          SCH_FREE(drxUeCb->shortCycleTmrExpiryNodeInfo, sizeof(CmLList));
 240       }
 241       /* TODO - will uncomment this function in next gerrit */
 242       //schDeleteDlHarqDrxTimer(cell, &ueCb->dlHqEnt);
 243       //schDeleteUlHarqDrxTimer(cell, &ueCb->ulHqEnt);
 244       schInitDrxUeCb(ueCb);
 245    }
 246 }
 247
 248 /**
 249  * @brief fill drxUeCb structure with the help of ue cfg/recfg information
 250  *
 251  * @details
 252  *
 253  *     Function : schFillDrxUeCb
 254  *
 255  *      fill drxUeCb structure with the help of ue cfg/recfg information
 256  *
 257  *  @param[in] SchDrxCfg drxCfg ->configuration received from ue cfg/recfg api
 258  *             SchDrxUeCb *drxUeCb -> structure that need to be fill
 259  *  @return
 260  *      -# ROK
 261  *      -# RFAILED
 262  **/
 263
 264 void schFillDrxUeCb(uint8_t numerology, SchDrxCfg drxCfg, SchDrxUeCb *drxUeCb)
 265 {
 266    if(drxCfg.drxOnDurationTimer.onDurationTimerValInMs)
 267    {
 268       SCH_CNVRT_MS_TO_SLOT(drxUeCb->onDurationLen, drxCfg.drxOnDurationTimer.onDurationtimerValue.milliSeconds, numerology);
 269    }
 270    else
 271    {
 272       SCH_CNVRT_MS_TO_SLOT(drxUeCb->onDurationLen, drxCfg.drxOnDurationTimer.onDurationtimerValue.subMilliSeconds, numerology);
 273       drxUeCb->onDurationLen = drxUeCb->onDurationLen >> 5;
 274    }
 275    SCH_CNVRT_MS_TO_SLOT(drxUeCb->inActvTimerLen, drxCfg.drxInactivityTimer, numerology);
 276    SCH_CNVRT_SYMBL_TO_SLOT(drxUeCb->harqRttDlTimerLen, drxCfg.drxHarqRttTimerDl);
 277    SCH_CNVRT_SYMBL_TO_SLOT(drxUeCb->harqRttUlTimerLen, drxCfg.drxHarqRttTimerUl);
 278    drxUeCb->retransDlTimerLen = drxCfg.drxRetransmissionTimerDl;
 279    drxUeCb->retransUlTimerLen = drxCfg.drxRetransmissionTimerUl;
 280    SCH_CNVRT_MS_TO_SLOT(drxUeCb->longCycleLen, drxCfg.drxLongCycleStartOffset.drxLongCycleStartOffsetChoice, numerology);
 281    SCH_CNVRT_MS_TO_SLOT(drxUeCb->drxStartOffset, drxCfg.drxLongCycleStartOffset.drxLongCycleStartOffsetVal, numerology);
 282    if(drxCfg.shortDrxPres)
 283    {
 284       drxUeCb->shortCyclePresent = true;
 285       SCH_CNVRT_MS_TO_SLOT(drxUeCb->shortCycleLen, drxCfg.shortDrx.drxShortCycle, numerology);
 286       drxUeCb->shortCycleTmrLen = drxUeCb->shortCycleLen*drxCfg.shortDrx.drxShortCycleTimer;
 287    }
 288    drxUeCb->longCycleToBeUsed = true;
 289    SCH_CNVRT_MS_TO_SLOT(drxUeCb->drxSlotOffset, drxCfg.drxSlotOffset, numerology);
 290    drxUeCb->drxSlotOffset = drxUeCb->drxSlotOffset>>5;
 291 }
 292
 293 /**
 294  * @brief Add new entry into the drx timer list
 295  *
 296  * @details
 297  *
 298  *     Function : schAddDrxTimerIntoList
 299  *
 300  *      Add new entry into the drx timer list
 301  *
 302  *  @param[in] CmLListCp *drxTimerList -> List in which new entery have to add
 303  *             void * ueInfo -> ue information which is need to the added into list
 304  *  @return
 305  *      -# ROK
 306  *      -# RFAILED
 307  **/
 308
 309 uint8_t schAddDrxTimerIntoList(CmLListCp *drxTimerList,void * nodeInfo, CmLList *drxNodeInfo)
 310 {
 311    CmLList  *currentNodeInfo = NULLP;
 312
 313    SCH_ALLOC(currentNodeInfo, sizeof(CmLList));
 314    if(!currentNodeInfo)
 315    {
 316       DU_LOG("\nERROR  --> SCH : schAddDrxTimerIntoList() : Memory allocation failed");
 317       return RFAILED;
 318    }
 319
 320    currentNodeInfo->node = (PTR)nodeInfo;
 321
 322    cmLListAdd2Tail(drxTimerList, currentNodeInfo);
 323    drxNodeInfo = currentNodeInfo;
 324    DU_LOG("\nINFO --> SCH : Drx node added into the list");
 325    return ROK;
 326 }
 327
 328 /**
 329  * @brief This function is used to find the next onduration start timing
 330  *
 331  * @details
 332  *
 333  *     Function : findNextOndurationOccurance
 334  *
 335  *      This function is used to find the next onduration start timing
 336  *
 337  *  @param[in] SchCellCb *cell, SchDrxUeCb *ueDrxCb, SlotTimingInfo  *nxtOnDur,
 338  *  uint8_t delta
 339  *
 340  *  @return
 341  *      -# void
 342  **/
 343
 344 void findNextOndurationOccurance(SchCellCb *cell, SchDrxUeCb *ueDrxCb, SlotTimingInfo  *nxtOnDur, uint8_t delta)
 345 {
 346    uint16_t   tmpDistance, numOfCycles;
 347    uint32_t   curTime, cycleLen, nxtDist;
 348    SlotTimingInfo  tmpTime;
 349
 350    if (ueDrxCb->longCycleToBeUsed == true)
 351    {
 352       cycleLen = ueDrxCb->longCycleLen;
 353    }
 354    else
 355    {
 356       cycleLen = ueDrxCb->shortCycleLen;
 357    }
 358
 359    /* Add delta to current time */
 360    ADD_DELTA_TO_TIME(cell->slotInfo, tmpTime, delta, cell->numSlots);
 361
 362    /* Convert tmpTime to number of slots */
 363    curTime = ((tmpTime.sfn * cell->numSlots) + tmpTime.slot);
 364
 365    /* as per 38.321,  if the criterion below is satisfied, then that sfn and
 366     * slot are the correct ones for the on-duration timer.
 367     * if the Short DRX Cycle is used, and [(SFN × 10) + subframe number] modulo
 368     * (drx-ShortCycle) = (drxStartOffset) modulo (drx-ShortCycle); or
 369     * if the Long DRX Cycle is used, and [(SFN × 10) + subframe number] modulo
 370     * (drx-LongCycle) = drxStartOffset  */
 371    if ( curTime <= ueDrxCb->drxStartOffset)
 372    {
 373       /* offset is the nextOnDur */
 374       nxtDist = ((((ueDrxCb->drxStartOffset / cell->numSlots)) & (MAX_SFN - 1)) * cell->numSlots) + (ueDrxCb->drxStartOffset % cell->numSlots);
 375    }
 376    else
 377    {
 378       tmpDistance = curTime - ueDrxCb->drxStartOffset;
 379       numOfCycles = tmpDistance / cycleLen;
 380
 381       if (0 == (tmpDistance % cycleLen))
 382       {
 383          /* Perfect match pick up the current time */
 384          nxtDist = ((((curTime / cell->numSlots)) & (MAX_SFN - 1)) * cell->numSlots) + (curTime % cell->numSlots);
 385       }
 386       else
 387       {
 388          nxtDist  = ueDrxCb->drxStartOffset + (numOfCycles + 1) * cycleLen;
 389       }
 390    }
 391
 392    /* If slot offset is non-zero then Add slot offset to the calculated onDur
 393     * distance */
 394    if(ueDrxCb->drxSlotOffset)
 395    {
 396       nxtDist = nxtDist + ueDrxCb->drxSlotOffset;
 397    }
 398    /*If next On Duration is less than DL DELTA ahead, we will miss it and
 399     * hence need to move to the On-Duration after that.*/
 400    if((nxtDist - (curTime - delta)) <= SCH_DRX_MAX_DELTA)
 401    {
 402       nxtDist = nxtDist + cycleLen;
 403    }
 404
 405    nxtOnDur->sfn = ((nxtDist / cell->numSlots) & (MAX_SFN - 1));
 406    nxtOnDur->slot = (nxtDist % cell->numSlots);
 407 }
 408
 409 /**
 410  * @brief Add entry into  the on duration list and short cycle list
 411  *
 412  * @details
 413  *
 414  *     Function : schDrxUeReCfgTimer
 415  *
 416  *      This function is used to Add entry into  the on duration list and short
 417  *      cycle list
 418  *
 419  *  @param[in] SchCellCb *cell,   SchUeCb *ueCb
 420  *  uint8_t delta
 421  *
 422  *  @return void
 423  **/
 424
 425 void schDrxUeReCfgTimer(SchCellCb *cell, SchUeCb *ueCb)
 426 {
 427    uint8_t  currentSlotIndx;
 428    uint32_t onDurTime, onDurExpSlotTime, currentSlotTime;
 429    uint32_t cycleLen;
 430    SlotTimingInfo onDurationOccurance;
 431
 432    if(ueCb->drxUeCb.shortCyclePresent == false)
 433    {
 434       /* if short cycle configuration are not recived as a part of UE Recfg then if there is any entry present in short cycle timer list
 435        * remove the entry from the list */
 436       if(ueCb->drxUeCb.shortCycleExpiryIndex != SCH_DRX_INVALID_INDEX)
 437       {
 438          cmLListDelFrm(&cell->drxCb[ueCb->drxUeCb.shortCycleExpiryIndex ].shortCycleExpiryList, ueCb->drxUeCb.shortCycleTmrExpiryNodeInfo);
 439          SCH_FREE(ueCb->drxUeCb.shortCycleTmrExpiryNodeInfo, sizeof(CmLList));
 440          ueCb->drxUeCb.shortCycleExpiryIndex = SCH_DRX_INVALID_INDEX;
 441          ueCb->drxUeCb.shortCycleDistance = SCH_DRX_INVALID_DISTANCE;
 442       }
 443    }
 444    /* If there is any entry present in on duration start list then remove the
 445     * entry from the list and recaluate the nect onduration cucurance */
 446    if(ueCb->drxUeCb.onDurationStartIndex != SCH_DRX_INVALID_INDEX)
 447    {
 448       cmLListDelFrm(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb->drxUeCb.onDurationStartNodeInfo);
 449       SCH_FREE(ueCb->drxUeCb.onDurationStartNodeInfo, sizeof(CmLList));
 450       ueCb->drxUeCb.onDurationStartIndex= SCH_DRX_INVALID_INDEX;
 451       ueCb->drxUeCb.onDurationStartDistance= SCH_DRX_INVALID_DISTANCE;
 452
 453    }
 454
 455    findNextOndurationOccurance(cell,  &ueCb->drxUeCb, &onDurationOccurance, 0);
 456    onDurTime = onDurationOccurance.sfn*cell->numSlots+onDurationOccurance.slot;
 457
 458    /* If Onduration timer of old configuration is already running then next onduration
 459     * starts once it expires*/
 460    if((ueCb->drxUeCb.onDurationExpiryDistance != SCH_DRX_INVALID_DISTANCE) && (ueCb->drxUeCb.onDurationExpiryIndex != SCH_DRX_INVALID_INDEX))
 461    {
 462        currentSlotTime = cell->slotInfo.sfn * cell->numSlots + cell->slotInfo.slot;
 463        currentSlotIndx = (currentSlotTime + PHY_DELTA_DL + SCHED_DELTA)%MAX_DRX_SIZE;
 464        if(currentSlotIndx >= ueCb->drxUeCb.onDurationExpiryIndex )
 465        {
 466          onDurExpSlotTime = currentSlotTime + ((ueCb->drxUeCb.onDurationExpiryDistance +1) * MAX_DRX_SIZE) +\
 467          (ueCb->drxUeCb.onDurationExpiryIndex - currentSlotIndx + PHY_DELTA_DL + SCHED_DELTA);
 468        }
 469        else
 470        {
 471
 472          onDurExpSlotTime = currentSlotTime + ((ueCb->drxUeCb.onDurationExpiryDistance) * MAX_DRX_SIZE) +\
 473          (ueCb->drxUeCb.onDurationExpiryIndex - currentSlotIndx + PHY_DELTA_DL + SCHED_DELTA);
 474        }
 475        if(onDurTime <= onDurExpSlotTime)
 476        {
 477           if(ueCb->drxUeCb.longCycleToBeUsed == true)
 478              cycleLen = ueCb->drxUeCb.longCycleLen;
 479           else
 480              cycleLen = ueCb->drxUeCb.shortCycleLen;
 481
 482           onDurTime = onDurTime + ((onDurExpSlotTime - onDurTime)/cycleLen + 1) * cycleLen;
 483        }
 484    }
 485    SCH_CALCULATE_TIMER_INDEX(onDurTime, ueCb->drxUeCb.onDurationStartIndex);
 486    ueCb->drxUeCb.onDurationStartDistance = SCH_CALC_SLOT_DIFF(onDurationOccurance, cell->slotInfo, cell->numSlots)/MAX_DRX_SIZE;
 487    schAddDrxTimerIntoList(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb, ueCb->drxUeCb.onDurationStartNodeInfo);
 488 }
 489
 490 /**
 491  * @brief Add entry into  the on duration list
 492  *
 493  * @details
 494  *
 495  *     Function : schAddUeInOndurationList
 496  *
 497  *      This function is used to Add entry into  the on duration list
 498  *
 499  *  @param[in] SchCellCb *cell, SchDrxUeCb *ueDrxCb, SlotTimingInfo  *nxtOnDur,
 500  *  uint8_t delta
 501  *
 502  *  @return
 503  *      -# void
 504  **/
 505
 506 void schAddUeInOndurationList(SchCellCb *cell, SchUeCb *ueCb, uint8_t delta)
 507 {
 508    uint32_t onDurTime;
 509    SlotTimingInfo onDurationOccurance;
 510
 511    if(ueCb->ueDrxInfoPres)
 512    {
 513       findNextOndurationOccurance(cell,  &ueCb->drxUeCb, &onDurationOccurance, delta);
 514       onDurTime = onDurationOccurance.sfn*cell->numSlots+onDurationOccurance.slot;
 515       SCH_CALCULATE_TIMER_INDEX(onDurTime, ueCb->drxUeCb.onDurationStartIndex);
 516       ueCb->drxUeCb.onDurationStartDistance = SCH_CALC_SLOT_DIFF(onDurationOccurance, cell->slotInfo, cell->numSlots)/MAX_DRX_SIZE;
 517       schAddDrxTimerIntoList(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb, ueCb->drxUeCb.onDurationStartNodeInfo);
 518
 519    }
 520 }
 521
 522 /**
 523  * @brief Handling of On duration drx start timer
 524  *
 525  * @details
 526  *
 527  *     Function : schHdlDrxOnDurStrtTimerForDlDirection
 528  *
 529  *      Handling of On duration drx start timer
 530  *
 531  *  @param[in] SchCellCb  *cell
 532  *  @return
 533  *      -# ROK
 534  *      -# RFAILED
 535  **/
 536
 537 void schHdlDrxOnDurStrtTimerForDlDirection(SchCellCb  *cell, uint16_t currListIndx)
 538 {
 539    uint16_t onDurationExpiry=0;
 540    CmLList  *drxCurrNode = NULLP;
 541    SchUeCb *ueCb = NULLP;
 542
 543    drxCurrNode = cell->drxCb[currListIndx].onDurationStartList.first;
 544    if(drxCurrNode)
 545    {
 546       /* Handling of dl On duration drx start list */
 547       while(drxCurrNode)
 548       {
 549          ueCb = (SchUeCb*)drxCurrNode->node;
 550          drxCurrNode = drxCurrNode->next;
 551
 552          ueCb->drxUeCb.onDurationStartDistance--;
 553
 554          if(ueCb->drxUeCb.onDurationStartDistance != SCH_DRX_INVALID_DISTANCE)
 555          {
 556             continue;
 557          }
 558          else
 559          {
 560             ueCb->drxUeCb.drxDlUeActiveStatus |= UE_ACTIVE_FOR_ONDURATION;
 561
 562             /* If there is any entery present in onDurationExpiry list remove
 563              * the entery from the list and recalculate the
 564              * onDurationExpiry time and add it to list */
 565             if(ueCb->drxUeCb.onDurationExpiryIndex != SCH_DRX_INVALID_INDEX)
 566             {
 567                cmLListDelFrm(&cell->drxCb[ueCb->drxUeCb.onDurationExpiryIndex].onDurationExpiryList, ueCb->drxUeCb.onDurationExpiryNodeInfo);
 568                SCH_FREE(ueCb->drxUeCb.onDurationExpiryNodeInfo, sizeof(CmLList));
 569                ueCb->drxUeCb.onDurationExpiryIndex = SCH_DRX_INVALID_INDEX;
 570                ueCb->drxUeCb.onDurationExpiryDistance = SCH_DRX_INVALID_DISTANCE;
 571             }
 572
 573             /* onDurationExpiry  = (current slot + onduration length) % MAX_DRX_SIZE*/
 574             onDurationExpiry = (currListIndx + ueCb->drxUeCb.onDurationLen)%MAX_DRX_SIZE;
 575             ueCb->drxUeCb.onDurationExpiryDistance =  (ueCb->drxUeCb.onDurationLen)/MAX_DRX_SIZE;
 576             schAddDrxTimerIntoList(&cell->drxCb[onDurationExpiry].onDurationExpiryList, ueCb, ueCb->drxUeCb.onDurationExpiryNodeInfo);
 577             ueCb->drxUeCb.onDurationExpiryIndex = onDurationExpiry;
 578
 579          }
 580       }
 581    }
 582 }
 583
 584 /**
 585  * @brief Handling of On duration drx start timer
 586  *
 587  * @details
 588  *
 589  *     Function : schHdlDrxOnDurStrtTimerForUlDirection
 590  *
 591  *      Handling of On duration drx start timer
 592  *
 593  *  @param[in] SchCellCb  *cell
 594  *  @return
 595  *      -# ROK
 596  *      -# RFAILED
 597  **/
 598
 599 void schHdlDrxOnDurStrtTimerForUlDirection(SchCellCb  *cell, uint16_t currListIndx)
 600 {
 601    uint16_t onDurTime=0;
 602    CmLList  *drxCurrNode = NULLP;
 603    SchUeCb *ueCb = NULLP;
 604
 605    drxCurrNode = cell->drxCb[currListIndx].onDurationStartList.first;
 606    if(drxCurrNode)
 607    {
 608       /* Handling of dl On duration drx start list */
 609       while(drxCurrNode)
 610       {
 611          ueCb = (SchUeCb*)drxCurrNode->node;
 612          drxCurrNode = drxCurrNode->next;
 613
 614          if(ueCb->drxUeCb.onDurationStartDistance != SCH_DRX_INVALID_DISTANCE)
 615          {
 616             continue;
 617          }
 618          ueCb->drxUeCb.drxUlUeActiveStatus |= UE_ACTIVE_FOR_ONDURATION;
 619
 620
 621          /* if there short cycle length is used as the cycle length for onduration calculation then based on the short cycle else long cycle is used for calculating next onduration */
 622          cmLListDelFrm(&cell->drxCb[currListIndx].onDurationStartList, ueCb->drxUeCb.onDurationStartNodeInfo);
 623          SCH_FREE(ueCb->drxUeCb.onDurationStartNodeInfo, sizeof(CmLList));
 624          ueCb->drxUeCb.onDurationStartIndex= SCH_DRX_INVALID_INDEX;
 625
 626          if(ueCb->drxUeCb.longCycleToBeUsed)
 627          {
 628             onDurTime = currListIndx +  ueCb->drxUeCb.longCycleLen;
 629          }
 630          else
 631          {
 632             onDurTime = currListIndx +  ueCb->drxUeCb.shortCycleLen;
 633          }
 634          SCH_CALCULATE_TIMER_INDEX(onDurTime, ueCb->drxUeCb.onDurationStartIndex);
 635          ueCb->drxUeCb.onDurationStartDistance = ueCb->drxUeCb.longCycleLen/MAX_DRX_SIZE;
 636          schAddDrxTimerIntoList(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb, ueCb->drxUeCb.onDurationStartNodeInfo);
 637       }
 638    }
 639 }
 640
 641 /**
 642  * @brief Handling of On duration drx start timer
 643  *
 644  * @details
 645  *
 646  *     Function : schHdlDrxOnDurStrtTimer
 647  *
 648  *      Handling of On duration drx start timer
 649  *
 650  *  @param[in] SchCellCb  *cell
 651  *  @return
 652  *      -# ROK
 653  *      -# RFAILED
 654  **/
 655 void schHdlDrxOnDurStrtTimer(SchCellCb  *cell)
 656 {
 657    uint16_t dlIndx = 0, ulIndx=0;
 658    SlotTimingInfo dlSlotInfo, ulSlotInfo;
 659
 660    ADD_DELTA_TO_TIME(cell->slotInfo, dlSlotInfo,  PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
 661    ADD_DELTA_TO_TIME(cell->slotInfo, ulSlotInfo,  PHY_DELTA_UL + SCHED_DELTA, cell->numSlots);
 662
 663    dlIndx = (dlSlotInfo.sfn*MAX_SLOTS+dlSlotInfo.slot)%MAX_DRX_SIZE;
 664    ulIndx = (ulSlotInfo.sfn*MAX_SLOTS+ulSlotInfo.slot)%MAX_DRX_SIZE;
 665    schHdlDrxOnDurStrtTimerForDlDirection(cell, dlIndx);
 666    schHdlDrxOnDurStrtTimerForUlDirection(cell, ulIndx);
 667 }
 668
 669 /**
 670  * @brief Handling of the  DRX timers start
 671  *
 672  * @details
 673  *
 674  *     Function : schHandleStartDrxTimer
 675  *
 676  *      Handling of DRX timers start
 677  *
 678  *  @param[in] SchCellCb  *cell
 679  *  @return
 680  *      -# ROK
 681  *      -# RFAILED
 682  **/
 683 void schHandleStartDrxTimer(SchCellCb  *cell)
 684 {
 685    /* Handling the onduration start timer */
 686    schHdlDrxOnDurStrtTimer(cell);
 687 }
 688
 689 /**
 690  * @brief Handling of the expiry onduration timer in dl direction
 691  *
 692  * @details
 693  *
 694  *     Function : schHdlDrxOnDurExpiryTimerForDlDirection
 695  *
 696  *      Handling of expiry onduration DRX timers in dl direction
 697  *
 698  *  @param[in] SchCellCb  *cell
 699  *  @return
 700  *      -# ROK
 701  *      -# RFAILED
 702  **/
 703 void schHdlDrxOnDurExpiryTimerForDlDirection(SchCellCb  *cell, uint16_t currListIndx)
 704 {
 705    CmLList  *drxCurrNode;
 706    SchUeCb *ueCb = NULLP;
 707
 708    drxCurrNode = cell->drxCb[currListIndx].onDurationExpiryList.first;
 709    if(drxCurrNode)
 710    {
 711       /* Handling of dl On duration drx start list */
 712       while(drxCurrNode)
 713       {
 714          ueCb = (SchUeCb*)drxCurrNode->node;
 715          drxCurrNode = drxCurrNode->next;
 716
 717          ueCb->drxUeCb.onDurationExpiryDistance--;
 718
 719          if(ueCb->drxUeCb.onDurationExpiryDistance != SCH_DRX_INVALID_DISTANCE)
 720          {
 721             continue;
 722          }
 723          ueCb->drxUeCb.drxDlUeActiveStatus &= ~UE_ACTIVE_FOR_ONDURATION;
 724       }
 725    }
 726 }
 727
 728 /**
 729  * @brief Handling of the expiry onduration DRX timers for Ul direction
 730  *
 731  * @details
 732  *
 733  *     Function  schHdlDrxOnDurExpiryTimerForUlDirection:
 734  *
 735  *      Handling of expiry onduration DRX timers in Ul direction
 736  *
 737  *  @param[in] SchCellCb  *cell
 738  *  @return
 739  *      -# ROK
 740  *      -# RFAILED
 741  **/
 742 void schHdlDrxOnDurExpiryTimerForUlDirection(SchCellCb  *cell, uint16_t currListIndx)
 743 {
 744    CmLList  *drxCurrNode;
 745    SchUeCb *ueCb = NULLP;
 746
 747    drxCurrNode = cell->drxCb[currListIndx].onDurationExpiryList.first;
 748    if(drxCurrNode)
 749    {
 750       /* Handling of dl On duration drx start list */
 751       while(drxCurrNode)
 752       {
 753          ueCb = (SchUeCb*)drxCurrNode->node;
 754          drxCurrNode = drxCurrNode->next;
 755
 756          if(ueCb->drxUeCb.onDurationExpiryDistance != SCH_DRX_INVALID_DISTANCE)
 757          {
 758             continue;
 759          }
 760
 761          ueCb->drxUeCb.drxUlUeActiveStatus &= ~UE_ACTIVE_FOR_ONDURATION;
 762          cmLListDelFrm(&cell->drxCb[ueCb->drxUeCb.onDurationExpiryIndex].onDurationExpiryList, ueCb->drxUeCb.onDurationExpiryNodeInfo);
 763          SCH_FREE(ueCb->drxUeCb.onDurationExpiryNodeInfo, sizeof(CmLList));
 764          ueCb->drxUeCb.onDurationExpiryIndex = SCH_DRX_INVALID_INDEX;
 765       }
 766    }
 767 }
 768 /**
 769  * @brief Handling of the expiry onduration DRX timers
 770  *
 771  * @details
 772  *
 773  *     Function : schHdlDrxOnDurExpiryTimer
 774  *
 775  *      Handling of expiry onduration DRX timers
 776  *
 777  *  @param[in] SchCellCb  *cell
 778  *  @return
 779  *      -# ROK
 780  *      -# RFAILED
 781  **/
 782 void schHdlDrxOnDurExpiryTimer(SchCellCb  *cell)
 783 {
 784    uint16_t dlIndx = 0, ulIndx = 0;
 785    SlotTimingInfo dlSlotInfo, ulSlotInfo;
 786
 787    ADD_DELTA_TO_TIME(cell->slotInfo, dlSlotInfo, PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
 788    ADD_DELTA_TO_TIME(cell->slotInfo, ulSlotInfo, PHY_DELTA_UL + SCHED_DELTA, cell->numSlots);
 789    dlIndx = (dlSlotInfo.sfn*MAX_SLOTS+dlSlotInfo.slot)%MAX_DRX_SIZE;
 790    ulIndx = (ulSlotInfo.sfn*MAX_SLOTS+ulSlotInfo.slot)%MAX_DRX_SIZE;
 791
 792    schHdlDrxOnDurExpiryTimerForDlDirection(cell, dlIndx);
 793    schHdlDrxOnDurExpiryTimerForUlDirection(cell, ulIndx);
 794 }
 795
 796 /**
 797  * @brief Handling of the expiry  DRX timers
 798  *
 799  * @details
 800  *
 801  *     Function : schHandleExpiryDrxTimer
 802  *
 803  *      Handling of expiry  DRX timers
 804  *
 805  *  @param[in] SchCellCb  *cell
 806  *  @return
 807  *      -# ROK
 808  *      -# RFAILED
 809  **/
 810 void schHandleExpiryDrxTimer(SchCellCb  *cell)
 811 {
 812    /* Handling the onduration start timer */
 813    schHdlDrxOnDurExpiryTimer(cell);
 814 }
 815
 816 #endif
 817 /**********************************************************************
 818   End of file
 819  **********************************************************************/