1 /*******************************************************************************
2 ################################################################################
3 # Copyright (c) [2017-2019] [Radisys] #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
6 # you may not use this file except in compliance with the License. #
7 # You may obtain a copy of the License at #
9 # http://www.apache.org/licenses/LICENSE-2.0 #
11 # Unless required by applicable law or agreed to in writing, software #
12 # distributed under the License is distributed on an "AS IS" BASIS, #
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
14 # See the License for the specific language governing permissions and #
15 # limitations under the License. #
16 ################################################################################
17 *******************************************************************************/
20 #define SCH_INST_START 1
21 #define SCH_MAX_INST 1
22 #define SCH_MU0_NUM_SLOTS 10
23 #define SCH_MU1_NUM_SLOTS 20
24 #define SCH_MU2_NUM_SLOTS 30
25 #define SCH_MU3_NUM_SLOTS 40
26 #define SCH_MU4_NUM_SLOTS 50
27 #define SCH_MAX_SFN 1024
28 #define MAX_NUM_RB 106 /* value for numerology 0 15Khz */
29 #define SCH_MIB_TRANS 80
30 #define SCH_NUM_SC_PRB 12 /* number of SCs in a PRB */
31 #define SCH_MAX_SSB_BEAM 4 /* since we are supporting only SCS=15KHz */
32 #define SCH_SCS_15KHZ 0 /* numerology 0 and 15Khz */
33 #define SCH_SYMBOL_PER_SLOT 14
34 #define SCH_SSB_NUM_SYMB 4
35 #define SCH_SSB_NUM_PRB 20
40 #define PUSCH_START_RB 15
41 #define PUCCH_NUM_PRB_FORMAT_0 1 /* number of PRBs in freq domain, spec 38.213 - 9.2.1 */
42 #define SI_RNTI 0xFFFF
44 #define DMRS_MAP_TYPE_A 1
45 #define NUM_DMRS_SYMBOLS 12
46 #define DMRS_ADDITIONAL_POS 2
51 #define RLC_HDR_SIZE 3 /* 3 bytes of RLC Header size */
52 #define MAC_HDR_SIZE 3 /* 3 bytes of MAC Header */
53 #define UL_GRANT_SIZE 224
55 typedef struct schCellCb SchCellCb;
56 typedef struct schUeCb SchUeCb;
69 SCH_UE_STATE_INACTIVE,
75 SCH_LC_STATE_INACTIVE,
81 * Structure holding LTE MAC's General Configuration information.
83 typedef struct schGenCb
85 uint8_t tmrRes; /*!< Timer resolution */
86 uint8_t startCellId; /*!< Starting Cell Id */
88 bool forceCntrlSrbBoOnPCel; /*!< value 1 means force scheduling
89 of RLC control BO and SRB BO on
90 PCell. val 0 means don't force*/
91 bool isSCellActDeactAlgoEnable; /*!< TRUE will enable activation/deactivation algo at Schd */
97 * scheduler allocationsfor DL per cell.
99 typedef struct schDlSlotInfo
101 uint16_t totalPrb; /*!< Number of RBs in the cell */
102 uint16_t assignedPrb[SCH_SYMBOL_PER_SLOT]; /*!< Num RBs and corresponding symbols allocated */
103 bool ssbPres; /*!< Flag to determine if SSB is present in this slot */
104 uint8_t ssbIdxSupported; /*!< Max SSB index */
105 SsbInfo ssbInfo[MAX_SSB_IDX]; /*!< SSB info */
106 bool sib1Pres; /*!< Flag to determine if SIB1 is present in this slot */
107 RarInfo *rarInfo; /*!< RAR info */
108 DlMsgInfo *dlMsgInfo; /*!< DL dedicated Msg info */
111 typedef struct schRaCb
118 * scheduler allocationsfor UL per cell.
120 typedef struct schUlSlotInfo
122 uint16_t totalPrb; /*!< Number of RBs in the cell */
123 uint16_t assignedPrb[SCH_SYMBOL_PER_SLOT]; /*!< Num RBs and corresponding symbols allocated */
124 uint8_t puschCurrentPrb; /* Current PRB for PUSCH allocation */
125 bool puschPres; /*!< PUSCH presence field */
126 SchPuschInfo *schPuschInfo; /*!< PUSCH info */
127 bool pucchPres; /*!< PUCCH presence field */
128 SchPucchInfo schPucchInfo; /*!< PUCCH info */
133 * BSR info per slot per UE.
135 typedef struct bsrInfo
137 uint8_t priority; /* CG priority */
138 uint32_t dataVol; /* Data volume requested in bytes */
141 typedef struct schLcCtxt
143 uint8_t lcId; // logical Channel ID
144 uint8_t lcp; // logical Channel Prioritization
149 typedef struct schDlCb
152 SchDlLcCtxt dlLcCtxt[MAX_NUM_LC];
155 typedef struct schUlLcCtxt
162 uint8_t pbr; // prioritisedBitRate
163 uint8_t bsd; // bucketSizeDuration
166 typedef struct schUlCb
169 SchUlLcCtxt ulLcCtxt[MAX_NUM_LC];
176 typedef struct schUeCb
184 BsrInfo bsrInfo[MAX_NUM_LOGICAL_CHANNEL_GROUPS];
191 * Cell Control block per cell.
193 typedef struct schCellCb
195 uint16_t cellId; /*!< Cell ID */
196 Inst instIdx; /*!< Index of the scheduler instance */
197 Inst macInst; /*!< Index of the MAC instance */
198 uint8_t numSlots; /*!< Number of slots in current frame */
199 SlotIndInfo slotInfo; /*!< SFN, Slot info being processed*/
200 SchDlSlotInfo **schDlSlotInfo; /*!< SCH resource allocations in DL */
201 SchUlSlotInfo **schUlSlotInfo; /*!< SCH resource allocations in UL */
202 SchCellCfg cellCfg; /*!< Cell ocnfiguration */
203 uint8_t ssbStartSymbArr[SCH_MAX_SSB_BEAM]; /*!<start symbol per SSB beam */
204 SchRaCb raCb[MAX_NUM_UE]; /*!< Rach Cb */
205 uint16_t numActvUe; /*!<Number of active UEs */
206 uint32_t actvUeBitMap; /*!<Bit map to find active UEs */
207 uint32_t boIndBitMap; /*!<Bit map to indicate UEs that have recevied BO */
208 SchUeCb ueCb[MAX_NUM_UE]; /*!<Pointer to UE contexts of this cell */
213 * Control block for sch
217 TskInit schInit; /*!< Task Init info */
218 SchGenCb genCfg; /*!< General Config info */
219 SchCellCb *cells[MAX_NUM_CELL]; /* Array to store cellCb ptr */
222 /* Declaration for scheduler control blocks */
223 SchCb schCb[SCH_MAX_INST];
225 /* function declarations */
226 uint8_t schBroadcastAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc,uint16_t slot);
227 uint8_t schProcessSlotInd(SlotIndInfo *slotInd, Inst inst);
228 uint8_t schUlResAlloc(SchCellCb *cell, Inst schInst);
229 uint8_t schDlRsrcAllocMsg4(DlMsgAlloc *msg4Alloc, SchCellCb *cell, uint16_t slot);
230 uint16_t schCalcTbSize(uint16_t payLoadSize);
231 uint16_t schCalcNumPrb(uint16_t tbSize, uint16_t mcs, uint8_t numSymbols);
232 uint16_t schAllocPucchResource(SchCellCb *cell, uint16_t crnti, uint16_t slot);
233 uint8_t schProcessRachInd(RachIndInfo *rachInd, Inst schInst);
234 uint8_t schFillUlDci(SchUeCb *ueCb, SchPuschInfo puschInfo, DciInfo *dciInfo);
235 uint8_t schFillPuschAlloc(SchUeCb *ueCb, uint16_t pdcchSlot, uint32_t dataVol, SchPuschInfo *puschInfo);
236 uint8_t schDlRsrcAllocDlMsg(DlMsgAlloc *dlMsgAlloc, SchCellCb *cell, uint16_t crnti,
237 uint16_t accumalatedSize, uint16_t slot);
238 uint16_t schAccumalateLcBoSize(SchCellCb *cell, uint16_t ueIdx);
240 /**********************************************************************
242 **********************************************************************/