133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file PHY/NR_TRANSPORT/nr_dci.c
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* \brief Implements DCI encoding/decoding (38.212/38.213/38.214). Current NR compliance V15.1 2018-06.
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* \author Guy De Souza
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* \date 2018
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* \version 0.1
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* \company Eurecom
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* \email: desouza@eurecom.fr
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* \note
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* \warning
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*/
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#include "nr_dci.h"
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uint8_t nr_get_dci_size(nr_dci_format_e format,
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nr_rnti_type_e rnti,
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NR_BWP_PARMS* bwp,
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nfapi_nr_config_request_t* config)
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{
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uint8_t size = 0;
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uint16_t N_RB = bwp->N_RB;
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switch(format) {
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case nr_dci_format_0_0:
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/// fixed: Format identifier 1, Hop flag 1, MCS 5, NDI 1, RV 2, HARQ PID 4, PUSCH TPC 2 --16
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size += 16;
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size += ceil( log2( (N_RB*(N_RB+1))>>2 ) ); // Freq domain assignment -- hopping scenario to be updated
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// Time domain assignment
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// UL/SUL indicator
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break;
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case nr_dci_format_0_1:
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/// fixed: Format identifier 1, MCS 5, NDI 1, RV 2, HARQ PID 4, PUSCH TPC 2, SRS request 2 --17
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size += 17;
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// Carrier indicator
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// UL/SUL indicator
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// BWP Indicator
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// Freq domain assignment
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// Time domain assignment
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// VRB to PRB mapping
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// Frequency Hopping flag
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// 1st DAI
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// 2nd DAI
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// SRS resource indicator
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// Precoding info and number of layers
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// Antenna ports
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// CSI request
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// CBGTI
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// PTRS - DMRS association
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// beta offset indicator
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// DMRS sequence init
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break;
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case nr_dci_format_1_0:
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/// fixed: Format identifier 1, VRB2PRB 1, MCS 5, NDI 1, RV 2, HARQ PID 4, DAI 2, PUCCH TPC 2, PUCCH RInd 3, PDSCH to HARQ TInd 3 --24
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size += 24;
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size += ceil( log2( (N_RB*(N_RB+1))>>2 ) ); // Freq domain assignment
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// Time domain assignment
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break;
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case nr_dci_format_1_1:
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// Carrier indicator
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size += 1; // Format identifier
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// BWP Indicator
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// Freq domain assignment
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// Time domain assignment
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// VRB to PRB mapping
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// PRB bundling size indicator
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// Rate matching indicator
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// ZP CSI-RS trigger
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/// TB1- MCS 5, NDI 1, RV 2
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size += 8;
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// TB2
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size += 4 ; // HARQ PID
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// DAI
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size += 2; // TPC PUCCH
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size += 3; // PUCCH resource indicator
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size += 3; // PDSCH to HARQ timing indicator
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// Antenna ports
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// Tx Config Indication
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size += 2; // SRS request
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// CBGTI
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// CBGFI
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size += 1; // DMRS sequence init
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break;
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case nr_dci_format_2_0:
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break;
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case nr_dci_format_2_1:
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break;
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case nr_dci_format_2_2:
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break;
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case nr_dci_format_2_3:
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break;
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default:
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AssertFatal(1==0, "Invalid NR DCI format %d\n", format);
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}
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return size;
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}
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uint8_t nr_generate_dci_top()
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{
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return 0;
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}
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