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 = false;
  82    ueCb->drxUeCb.drxUlUeActiveStatus = false;
  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    findNextOndurationOccurance(cell,  &ueCb->drxUeCb, &onDurationOccurance, 0);
 455    onDurTime = onDurationOccurance.sfn*cell->numSlots+onDurationOccurance.slot;
 456
 457    /* If Onduration timer of old configuration is already running then next onduration
 458     * starts once it expires*/
 459    if((ueCb->drxUeCb.onDurationExpiryDistance != SCH_DRX_INVALID_DISTANCE) && (ueCb->drxUeCb.onDurationExpiryIndex != SCH_DRX_INVALID_INDEX))
 460    {
 461        currentSlotTime = cell->slotInfo.sfn * cell->numSlots + cell->slotInfo.slot;
 462        currentSlotIndx = (currentSlotTime + PHY_DELTA_DL + SCHED_DELTA)%MAX_DRX_SIZE;
 463        if(currentSlotIndx >= ueCb->drxUeCb.onDurationExpiryIndex )
 464        {
 465          onDurExpSlotTime = currentSlotTime + ((ueCb->drxUeCb.onDurationExpiryDistance +1) * MAX_DRX_SIZE) +\
 466          (ueCb->drxUeCb.onDurationExpiryIndex - currentSlotIndx + PHY_DELTA_DL + SCHED_DELTA);
 467        }
 468        else
 469        {
 470
 471          onDurExpSlotTime = currentSlotTime + ((ueCb->drxUeCb.onDurationExpiryDistance) * MAX_DRX_SIZE) +\
 472          (ueCb->drxUeCb.onDurationExpiryIndex - currentSlotIndx + PHY_DELTA_DL + SCHED_DELTA);
 473        }
 474        if(onDurTime <= onDurExpSlotTime)
 475        {
 476           if(ueCb->drxUeCb.longCycleToBeUsed == true)
 477              cycleLen = ueCb->drxUeCb.longCycleLen;
 478           else
 479              cycleLen = ueCb->drxUeCb.shortCycleLen;
 480
 481           onDurTime = onDurTime + ((onDurExpSlotTime - onDurTime)/cycleLen + 1) * cycleLen;
 482        }
 483    }
 484    SCH_CALCULATE_TIMER_INDEX(onDurTime, ueCb->drxUeCb.onDurationStartIndex);
 485    ueCb->drxUeCb.onDurationStartDistance = SCH_CALC_SLOT_DIFF(onDurationOccurance, cell->slotInfo, cell->numSlots)/MAX_DRX_SIZE;
 486    schAddDrxTimerIntoList(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb, ueCb->drxUeCb.onDurationStartNodeInfo);
 487 }
 488
 489 /**
 490  * @brief Add entry into  the on duration list
 491  *
 492  * @details
 493  *
 494  *     Function : schAddUeInOndurationList
 495  *
 496  *      This function is used to Add entry into  the on duration list
 497  *
 498  *  @param[in] SchCellCb *cell, SchDrxUeCb *ueDrxCb, SlotTimingInfo  *nxtOnDur,
 499  *  uint8_t delta
 500  *
 501  *  @return
 502  *      -# void
 503  **/
 504
 505 void schAddUeInOndurationList(SchCellCb *cell, SchUeCb *ueCb, uint8_t delta)
 506 {
 507    uint32_t onDurTime;
 508    SlotTimingInfo onDurationOccurance;
 509
 510    if(ueCb->ueDrxInfoPres)
 511    {
 512       findNextOndurationOccurance(cell,  &ueCb->drxUeCb, &onDurationOccurance, delta);
 513       onDurTime = onDurationOccurance.sfn*cell->numSlots+onDurationOccurance.slot;
 514       SCH_CALCULATE_TIMER_INDEX(onDurTime, ueCb->drxUeCb.onDurationStartIndex);
 515       ueCb->drxUeCb.onDurationStartDistance = SCH_CALC_SLOT_DIFF(onDurationOccurance, cell->slotInfo, cell->numSlots)/MAX_DRX_SIZE;
 516       schAddDrxTimerIntoList(&cell->drxCb[ueCb->drxUeCb.onDurationStartIndex].onDurationStartList, ueCb, ueCb->drxUeCb.onDurationStartNodeInfo);
 517
 518    }
 519 }
 520
 521 #endif
 522 /**********************************************************************
 523   End of file
 524  **********************************************************************/