/* * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The OpenAirInterface Software Alliance licenses this file to You under * the OAI Public License, Version 1.1 (the "License"); you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * * http://www.openairinterface.org/?page_id=698 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------------------- * For more information about the OpenAirInterface (OAI) Software Alliance: * contact@openairinterface.org */ /* \file nr_mac.h * \brief common MAC data structures, constant, and function prototype * \author R. Knopp, K.H. HSU, G. Casati * \date 2019 * \version 0.1 * \company Eurecom / NTUST / Fraunhofer IIS * \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr, guido.casati@iis.fraunhofer.de * \note * \warning */ #ifndef __LAYER2_NR_MAC_H__ #define __LAYER2_NR_MAC_H__ #include <stdio.h> #include <stdlib.h> #include <string.h> #define NR_BCCH_DL_SCH 3 // SI #define NR_BCCH_BCH 5 // MIB #define CCCH_PAYLOAD_SIZE_MAX 128 #define RAR_PAYLOAD_SIZE_MAX 128 // For both DL/UL-SCH // Except: // - UL/DL-SCH: fixed-size MAC CE(known by LCID) // - UL/DL-SCH: padding // - UL-SCH: MSG3 48-bits // |0|1|2|3|4|5|6|7| bit-wise // |R|F| LCID | // | L | // |0|1|2|3|4|5|6|7| bit-wise // |R|F| LCID | // | L | // | L | // For both DL/UL-SCH // For: // - UL/DL-SCH: fixed-size MAC CE(known by LCID) // - UL/DL-SCH: padding, for single/multiple 1-oct padding CE(s) // - UL-SCH: MSG3 48-bits // |0|1|2|3|4|5|6|7| bit-wise // |R|R| LCID | // LCID: The Logical Channel ID field identifies the logical channel instance of the corresponding MAC SDU or the type of the corresponding MAC CE or padding as described in Tables 6.2.1-1 and 6.2.1-2 for the DL-SCH and UL-SCH respectively. There is one LCID field per MAC subheader. The LCID field size is 6 bits; // L: The Length field indicates the length of the corresponding MAC SDU or variable-sized MAC CE in bytes. There is one L field per MAC subheader except for subheaders corresponding to fixed-sized MAC CEs and padding. The size of the L field is indicated by the F field; // F: lenght of L is 0:8 or 1:16 bits wide // R: Reserved bit, set to zero. typedef struct { uint8_t LCID: 6; // octet 1 [5:0] uint8_t F: 1; // octet 1 [6] uint8_t R: 1; // octet 1 [7] uint8_t L: 8; // octet 2 [7:0] } __attribute__ ((__packed__)) NR_MAC_SUBHEADER_SHORT; typedef struct { uint8_t LCID: 6; // octet 1 [5:0] uint8_t F: 1; // octet 1 [6] uint8_t R: 1; // octet 1 [7] uint8_t L1: 8; // octet 2 [7:0] uint8_t L2: 8; // octet 3 [7:0] } __attribute__ ((__packed__)) NR_MAC_SUBHEADER_LONG; typedef struct { uint8_t LCID: 6; // octet 1 [5:0] uint8_t R: 2; // octet 1 [7:6] } __attribute__ ((__packed__)) NR_MAC_SUBHEADER_FIXED; // BSR MAC CEs // TS 38.321 ch. 6.1.3.1 // Short BSR for a specific logical channel group ID typedef struct { uint8_t Buffer_size: 5; // octet 1 LSB uint8_t LcgID: 3; // octet 1 MSB } __attribute__ ((__packed__)) NR_BSR_SHORT; typedef NR_BSR_SHORT NR_BSR_SHORT_TRUNCATED; // Long BSR for all logical channel group ID typedef struct { uint8_t Buffer_size7: 8; uint8_t Buffer_size6: 8; uint8_t Buffer_size5: 8; uint8_t Buffer_size4: 8; uint8_t Buffer_size3: 8; uint8_t Buffer_size2: 8; uint8_t Buffer_size1: 8; uint8_t Buffer_size0: 8; uint8_t LcgID0: 1; uint8_t LcgID1: 1; uint8_t LcgID2: 1; uint8_t LcgID3: 1; uint8_t LcgID4: 1; uint8_t LcgID5: 1; uint8_t LcgID6: 1; uint8_t LcgID7: 1; } __attribute__ ((__packed__)) NR_BSR_LONG; typedef NR_BSR_LONG NR_BSR_LONG_TRUNCATED; // 38.321 ch. 6.1.3.4 typedef struct { uint8_t TA_COMMAND: 6; // octet 1 [5:0] uint8_t TAGID: 2; // octet 1 [7:6] } __attribute__ ((__packed__)) NR_MAC_CE_TA; // single Entry PHR MAC CE // TS 38.321 ch. 6.1.3.8 typedef struct { uint8_t PH: 6; uint8_t R1: 2; uint8_t PCMAX: 6; uint8_t R2: 6; } __attribute__ ((__packed__)) NR_SINGLE_ENTRY_PHR_MAC_CE; // SP ZP CSI-RS Resource Set Activation/Deactivation MAC CE // 38.321 ch. 6.1.3.19 typedef struct { uint8_t BWPID: 2; // octet 1 [1:0] uint8_t CELLID: 5; // octet 1 [6:2] uint8_t A_D: 1; // octet 1 [7] uint8_t CSIRS_RSC_ID: 4; // octet 2 [3:0] uint8_t R: 4; // octet 2 [7:4] } __attribute__ ((__packed__)) NR_MAC_CE_SP_ZP_CSI_RS_RES_SET; //TS 38.321 Sec 6.1.3.15, TCI State indicaton for UE-Specific PDCCH MAC CE typedef struct { uint8_t CoresetId1: 3; //Octect 1 [2:0] uint8_t ServingCellId: 5; //Octect 1 [7:3] uint8_t TciStateId: 7; //Octect 2 [6:0] uint8_t CoresetId2: 1; //Octect 2 [7] } __attribute__ ((__packed__)) NR_TCI_PDCCH; //TS 38.321 Sec 6.1.3.14, TCI State activation/deactivation for UE Specific PDSCH MAC CE typedef struct { uint8_t BWP_Id: 2; //Octect 1 [1:0] uint8_t ServingCellId: 5; //Octect 1 [6:2] uint8_t R: 1; //Octect 1 [7] uint8_t T[]; //Octects 2 to MAX TCI States/8 } __attribute__ ((__packed__)) NR_TCI_PDSCH_APERIODIC_CSI; //TS 6.1.3.16, SP CSI reporting on PUCCH Activation/Deactivation MAC CE typedef struct { uint8_t BWP_Id: 2; //Octect 1 [1:0] uint8_t ServingCellId: 5; //Octect 1 [6:2] uint8_t R1: 1; //Octect 1 [7] uint8_t S0: 1; //Octect 2 [0] uint8_t S1: 1; //Octect 2 [1] uint8_t S2: 1; //Octect 2 [2] uint8_t S3: 1; //Octect 2 [3] uint8_t R2: 4; //Octect 2 [7:4] } __attribute__ ((__packed__)) NR_PUCCH_CSI_REPORTING; //TS 38.321 sec 6.1.3.12 //SP CSI-RS / CSI-IM Resource Set Activation/Deactivation MAC CE typedef struct { uint8_t BWP_ID: 2; uint8_t SCID: 5; uint8_t A_D: 1; uint8_t SP_CSI_RSID: 6; uint8_t IM: 1; uint8_t R1: 1; uint8_t SP_CSI_IMID: 6; uint8_t R2: 2; struct TCI_S { uint8_t TCI_STATE_ID: 6; uint8_t R: 2; } __attribute__ ((__packed__)) TCI_STATE; } __attribute__ ((__packed__)) CSI_RS_CSI_IM_ACT_DEACT_MAC_CE; //* RAR MAC subheader // TS 38.321 ch. 6.1.5, 6.2.2 *// // - E: The Extension field is a flag indicating if the MAC subPDU including this MAC subheader is the last MAC subPDU or not in the MAC PDU // - T: The Type field is a flag indicating whether the MAC subheader contains a Random Access Preamble ID or a Backoff Indicator (0, BI) (1, RAPID) // - R: Reserved bit, set to "0" // - BI: The Backoff Indicator field identifies the overload condition in the cell. // - RAPID: The Random Access Preamble IDentifier field identifies the transmitted Random Access Preamble /*!\brief RAR MAC subheader with RAPID */ typedef struct { uint8_t RAPID: 6; uint8_t T: 1; uint8_t E: 1; } __attribute__ ((__packed__)) NR_RA_HEADER_RAPID; /*!\brief RAR MAC subheader with Backoff Indicator */ typedef struct { uint8_t BI: 4; uint8_t R: 2; uint8_t T: 1; uint8_t E: 1; } __attribute__ ((__packed__)) NR_RA_HEADER_BI; // TS 38.321 ch. 6.2.3 typedef struct { uint8_t TA1: 7; // octet 1 [6:0] uint8_t R: 1; // octet 1 [7] uint8_t UL_GRANT_1: 3; // octet 2 [2:0] uint8_t TA2: 5; // octet 2 [7:3] uint8_t UL_GRANT_2: 8; // octet 3 [7:0] uint8_t UL_GRANT_3: 8; // octet 4 [7:0] uint8_t UL_GRANT_4: 8; // octet 5 [7:0] uint8_t TCRNTI_1: 8; // octet 6 [7:0] uint8_t TCRNTI_2: 8; // octet 7 [7:0] } __attribute__ ((__packed__)) NR_MAC_RAR; // DCI pdu structures. Used by both gNB and UE. typedef struct { uint16_t val; uint8_t nbits; } dci_field_t; typedef struct { uint8_t format_indicator; //1 bit uint8_t ra_preamble_index; //6 bits uint8_t ss_pbch_index; //6 bits uint8_t prach_mask_index; //4 bits uint8_t mcs; //5 bits uint8_t ndi; //1 bit uint8_t rv; //2 bits uint8_t harq_pid; //4 bits uint8_t tpc; //2 bits uint8_t short_messages_indicator; //2 bits uint8_t short_messages; //8 bits uint8_t tb_scaling; //2 bits uint8_t pucch_resource_indicator; //3 bits uint8_t system_info_indicator; //1 bit uint8_t ulsch_indicator; uint8_t slot_format_indicator_count; uint8_t *slot_format_indicators; uint8_t pre_emption_indication_count; uint16_t *pre_emption_indications; //14 bit each uint8_t block_number_count; uint8_t *block_numbers; uint8_t padding; dci_field_t mcs2; //variable dci_field_t ndi2; //variable dci_field_t rv2; //variable dci_field_t frequency_domain_assignment; //variable dci_field_t time_domain_assignment; //variable dci_field_t frequency_hopping_flag; //variable dci_field_t vrb_to_prb_mapping; //variable dci_field_t dai[2]; //variable dci_field_t pdsch_to_harq_feedback_timing_indicator; //variable dci_field_t carrier_indicator; //variable dci_field_t bwp_indicator; //variable dci_field_t prb_bundling_size_indicator; //variable dci_field_t rate_matching_indicator; //variable dci_field_t zp_csi_rs_trigger; //variable dci_field_t transmission_configuration_indication; //variable dci_field_t srs_request; //variable dci_field_t cbgti; //variable dci_field_t cbgfi; //variable dci_field_t srs_resource_indicator; //variable dci_field_t precoding_information; //variable dci_field_t csi_request; //variable dci_field_t ptrs_dmrs_association; //variable dci_field_t beta_offset_indicator; //variable dci_field_t cloded_loop_indicator; //variable dci_field_t ul_sul_indicator; //variable dci_field_t antenna_ports; //variable dci_field_t dmrs_sequence_initialization; dci_field_t reserved; //1_0/C-RNTI:10 bits, 1_0/P-RNTI: 6 bits, 1_0/SI-&RA-RNTI: 16 bits } dci_pdu_rel15_t; // 38.321 ch6.2.1, 38.331 #define DL_SCH_LCID_CCCH 0x00 #define DL_SCH_LCID_DCCH 0x01 #define DL_SCH_LCID_DCCH1 0x02 #define DL_SCH_LCID_DTCH 0x04 #define DL_SCH_LCID_RECOMMENDED_BITRATE 0x2F #define DL_SCH_LCID_SP_ZP_CSI_RS_RES_SET_ACT 0x30 #define DL_SCH_LCID_PUCCH_SPATIAL_RELATION_ACT 0x31 #define DL_SCH_LCID_SP_SRS_ACTIVATION 0x32 #define DL_SCH_LCID_SP_CSI_REP_PUCCH_ACT 0x33 #define DL_SCH_LCID_TCI_STATE_IND_UE_SPEC_PDCCH 0x34 #define DL_SCH_LCID_TCI_STATE_ACT_UE_SPEC_PDSCH 0x35 #define DL_SCH_LCID_APERIODIC_CSI_TRI_STATE_SUBSEL 0x36 #define DL_SCH_LCID_SP_CSI_RS_CSI_IM_RES_SET_ACT 0X37 #define DL_SCH_LCID_DUPLICATION_ACT 0X38 #define DL_SCH_LCID_SCell_ACT_4_OCT 0X39 #define DL_SCH_LCID_SCell_ACT_1_OCT 0X3A #define DL_SCH_LCID_L_DRX 0x3B #define DL_SCH_LCID_DRX 0x3C #define DL_SCH_LCID_TA_COMMAND 0x3D #define DL_SCH_LCID_CON_RES_ID 0x3E #define DL_SCH_LCID_PADDING 0x3F #define UL_SCH_LCID_CCCH 0x00 #define UL_SCH_LCID_SRB1 0x01 #define UL_SCH_LCID_SRB2 0x02 #define UL_SCH_LCID_SRB3 0x03 #define UL_SCH_LCID_DTCH 0x04 #define UL_SCH_LCID_CCCH_MSG3 0x21 #define UL_SCH_LCID_RECOMMENDED_BITRATE_QUERY 0x35 #define UL_SCH_LCID_MULTI_ENTRY_PHR_4_OCT 0x36 #define UL_SCH_LCID_CONFIGURED_GRANT_CONFIRMATION 0x37 #define UL_SCH_LCID_MULTI_ENTRY_PHR_1_OCT 0x38 #define UL_SCH_LCID_SINGLE_ENTRY_PHR 0x39 #define UL_SCH_LCID_C_RNTI 0x3A #define UL_SCH_LCID_S_TRUNCATED_BSR 0x3B #define UL_SCH_LCID_L_TRUNCATED_BSR 0x3C #define UL_SCH_LCID_S_BSR 0x3D #define UL_SCH_LCID_L_BSR 0x3E #define UL_SCH_LCID_PADDING 0x3F #define NR_MAX_NUM_LCID 32 #define NR_MAX_NUM_LCGID 8 #define MAX_RLC_SDU_SUBHEADER_SIZE 3 #endif /*__LAYER2_MAC_H__ */