/* * 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 l2_nr_interface.c * \brief layer 2 interface, used to support different RRC sublayer * \author Raymond Knopp and Navid Nikaein, WEI-TAI CHEN * \date 2010-2014, 2018 * \version 1.0 * \company Eurecom, NTUST * \email: raymond.knopp@eurecom.fr, kroempa@gmail.com */ #include "platform_types.h" #include "nr_rrc_defs.h" #include "common/utils/LOG/log.h" #include "pdcp.h" #include "common/ran_context.h" #include "openair2/LAYER2/MAC/mac_vars.h" #include "intertask_interface.h" #include "NR_MIB.h" #include "NR_BCCH-BCH-Message.h" extern RAN_CONTEXT_t RC; int8_t mac_rrc_nr_data_req(const module_id_t Mod_idP, const int CC_id, const frame_t frameP, const rb_id_t Srb_id, const uint8_t Nb_tb, uint8_t *const buffer_pP ){ asn_enc_rval_t enc_rval; uint8_t Sdu_size = 0; uint8_t sfn_msb = (uint8_t)((frameP>>4)&0x3f); #ifdef DEBUG_RRC LOG_D(RRC,"[eNB %d] mac_rrc_data_req to SRB ID=%ld\n",Mod_idP,Srb_id); #endif gNB_RRC_INST *rrc; rrc_gNB_carrier_data_t *carrier; NR_BCCH_BCH_Message_t *mib; NR_SRB_INFO * srb_info; char payload_size, *payload_pP; rrc = RC.nrrrc[Mod_idP]; carrier = &rrc->carrier; mib = &carrier->mib; srb_info = &carrier->Srb0; /* MIBCH */ if ((Srb_id & RAB_OFFSET) == MIBCH) { /// controlResourceSetZero switch (*carrier->servingcellconfigcommon->ssbSubcarrierSpacing) { case NR_SubcarrierSpacing_kHz15: if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz15) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_1_num_indexes; } else if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz30) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_2_num_indexes; } else { AssertFatal(true,"Invalid subCarrierSpacingCommon\n"); } break; case NR_SubcarrierSpacing_kHz30: if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz15) { // TODO get min_bw 38.101-1 table 5.3.5-1 //if ( (min_bw == 5) || (min_bw == 10) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_3_num_indexes; //} else if (min_bw == 40) { // mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_5_num_indexes; //} } else if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz30) { // TODO get min_bw 38.101-1 table 5.3.5-1 //if ( (min_bw == 5) || (min_bw == 10) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_4_num_indexes; //} else if (min_bw == 40) { // mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_6_num_indexes; //} } else { AssertFatal(true,"Invalid subCarrierSpacingCommon\n"); } break; case NR_SubcarrierSpacing_kHz120: if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz60) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_7_num_indexes; } else if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz120) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_8_num_indexes; } else { AssertFatal(true,"Invalid subCarrierSpacingCommon\n"); } break; case NR_SubcarrierSpacing_kHz240: if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz60) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_9_num_indexes; } else if (mib->message.choice.mib->subCarrierSpacingCommon == NR_SubcarrierSpacing_kHz120) { mib->message.choice.mib->pdcch_ConfigSIB1.controlResourceSetZero = rand() % table_38213_13_10_num_indexes; } else { AssertFatal(true,"Invalid subCarrierSpacingCommon\n"); } break; default: AssertFatal(true,"Invalid ssbSubcarrierSpacing\n"); break; } /// TODO: searchSpaceZero //if(mac->type0_pdcch_ss_mux_pattern == 1 && frequency_range == FR1){ mib->message.choice.mib->pdcch_ConfigSIB1.searchSpaceZero = rand() % table_38213_13_11_num_indexes; /*} if(mac->type0_pdcch_ss_mux_pattern == 1 && frequency_range == FR2){ mib->message.choice.mib->pdcch_ConfigSIB1.searchSpaceZero = rand() % table_38213_13_12_num_indexes; } if(mac->type0_pdcch_ss_mux_pattern == 2) { if((scs_ssb == scs_120kHz) && (scs_pdcch == scs_60kHz)){ mib->message.choice.mib->pdcch_ConfigSIB1.searchSpaceZero = rand() % table_38213_13_13_num_indexes; } else if((scs_ssb == scs_240kHz) && (scs_pdcch == scs_120kHz)){ mib->message.choice.mib->pdcch_ConfigSIB1.searchSpaceZero = rand() % table_38213_13_14_num_indexes; } }*/ //NR_UE_MAC_INST_t *mac = get_mac_inst(Mod_idP); //gNB_mac = RC.nrmac[0]; //mac->type0_pdcch_ss_mux_pattern mib->message.choice.mib->systemFrameNumber.buf[0] = sfn_msb << 2; enc_rval = uper_encode_to_buffer(&asn_DEF_NR_BCCH_BCH_Message, NULL, (void *) mib, carrier->MIB, 24); LOG_D(NR_RRC, "Encoded MIB for frame %d sfn_msb %d (%p), bits %lu\n", frameP, sfn_msb, carrier->MIB, enc_rval.encoded); buffer_pP[0] = carrier->MIB[0]; buffer_pP[1] = carrier->MIB[1]; buffer_pP[2] = carrier->MIB[2]; LOG_D(NR_RRC, "MIB PDU buffer_pP[0]=%x , buffer_pP[1]=%x, buffer_pP[2]=%x\n", buffer_pP[0], buffer_pP[1], buffer_pP[2]); AssertFatal (enc_rval.encoded > 0, "ASN1 message encoding failed (%s, %lu)!\n", enc_rval.failed_type->name, enc_rval.encoded); return (3); } /* TODO BCCH SIB1 SIBs */ /* CCCH */ if( (Srb_id & RAB_OFFSET ) == CCCH) { //struct rrc_eNB_ue_context_s *ue_context_p = rrc_eNB_get_ue_context(RC.rrc[Mod_idP],rnti); //if (ue_context_p == NULL) return(0); //eNB_RRC_UE_t *ue_p = &ue_context_p->ue_context; LOG_D(RRC,"[gNB %d] Frame %d CCCH request (Srb_id %ld)\n", Mod_idP, frameP, Srb_id); // srb_info=&ue_p->Srb0; payload_size = srb_info->Tx_buffer.payload_size; // check if data is there for MAC if (payload_size > 0) { payload_pP = srb_info->Tx_buffer.Payload; LOG_D(RRC,"[gNB %d] CCCH (%p) has %d bytes (dest: %p, src %p)\n", Mod_idP, srb_info, payload_size, buffer_pP, payload_pP); // Fill buffer memcpy((void *)buffer_pP, (void*)payload_pP, payload_size); Sdu_size = payload_size; srb_info->Tx_buffer.payload_size = 0; } return Sdu_size; } return(0); }