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Commit 0bb24834 authored by Eric's avatar Eric Committed by Nick Ho
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Add DCI data structure and NB_eNB_shcedule_RA

parent 3cde6ecb
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openair1/PHY/LTE_TRANSPORT/dci_nb_iot.h 0 → 100644
View file @ 0bb24834
/*
* 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 1.0 (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 PHY/LTE_TRANSPORT/dci.h
* \brief typedefs for LTE DCI structures from 36-212, V8.6 2009-03. Limited to 5 MHz formats for the moment.Current LTE compliance V8.6 2009-03.
* \author R. Knopp
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr
* \note
* \warning
*/
#ifndef USER_MODE
#include "PHY/types.h"
#else
#include <stdint.h>
#endif
/// DCI Format Type 0 (180 kHz, 23 bits)
typedef struct DCIFormatN0{
/// type = 0 => DCI Format N0, type = 1 => DCI Format N1, 1 bits
uint8_t type;
/// Subcarrier indication, 6 bits
uint8_t scind;
/// Resourse Assignment (RU Assignment), 3 bits
uint8_t ResAssign;
/// Modulation and Coding Scheme, 4 bits
uint8_t mcs;
/// New Data Indicator, 1 bits
uint8_t ndi;
/// Scheduling Delay, 2 bits
uint8_t Scheddly;
/// Repetition Number, 3 bits
uint8_t RepNum;
/// Redundancy version for HARQ (only use 0 and 2), 1 bits
uint8_t rv;
/// DCI subframe repetition Number, 2 bits
uint8_t DCIRep;
};
typedef struct DCIFormatN0 DCIFormatN0_t;
#define sizeof_DDCIFormatN0_t 23
/// DCI Format Type N1 for User data
struct DCIFormatN1{
/// type = 0 => DCI Format N0, type = 1 => DCI Format N1,1bits
uint8_t type;
//NPDCCH order indicator (set to 0), 1 bits
uint8_t orderIndicator;
// Scheduling Delay,3 bits
uint8_t Scheddly;
// Resourse Assignment (RU Assignment),3 bits
uint8_t ResAssign;
// Modulation and Coding Scheme,4 bits
uint8_t mcs;
// Repetition Number,4 bits
uint8_t RepNum;
// New Data Indicator,1 bits
uint8_t ndi;
// HARQ-ACK resource,4 bits
uint8_t HARQackRes;
// DCI subframe repetition Number,2 bits
uint8_t DCIRep;
};
typedef struct DCIFormatN1 DCIFormatN1_t;
#define sizeof_DCIFormatN1_t 23
/// DCI Format Type N1 for initial RA
struct DCIFormatN1_RA{
/// type = 0 => DCI Format N0, type = 1 => DCI Format N1, 1 bits
uint8_t type;
//NPDCCH order indicator (set to 0),1 bits
uint8_t orderIndicator;
// Start number of NPRACH repetiiton, 2 bits
uint8_t Scheddly;
// Subcarrier indication of NPRACH, 6 bits
uint8_t scind;
// All the remainging bits, 13 bits
uint8_t remaingingBits;
};
typedef struct DCIFormatN1_RA DCIFormatN1_RA_t;
#define sizeof_DCIFormatN1_RA_t 23
/// DCI Format Type N1 for RAR
struct DCIFormatN1_RAR{
/// type = 0 => DCI Format N0, type = 1 => DCI Format N1, 1 bits
uint8_t type;
//NPDCCH order indicator (set to 0),1 bits
uint8_t orderIndicator;
// Scheduling Delay, 3 bits
uint8_t Scheddly;
// Resourse Assignment (RU Assignment), 3 bits
uint8_t ResAssign;
// Modulation and Coding Scheme, 4 bits
uint8_t mcs;
// Repetition Number, 4 bits
uint8_t RepNum;
// Reserved 5 bits
uint8_t Reserved;
// DCI subframe repetition Number, 2 bits
uint8_t DCIRep;
};
typedef struct DCIFormatN1_RAR DCIFormatN1_RAR_t;
#define sizeof_DCIFormatN1_RAR_t 23
// DCI Format Type N2 for direct indication, 15 bits
struct DCIFormat2_Ind{
//Flag for paging(1)/direct indication(0), set to 0,1 bits
uint8_t type;
//Direct indication information, 8 bits
uint8_t directIndInf;
// Reserved information bits, 6 bits
uint8_t resInfoBits;
};
typedef struct DCIFormat2_Ind DCIFormat2_Ind_t;
#define sizeof_DCIFormat2_Ind_t 15
// DCI Format Type N2 for Paging, 15 bits
struct DCIFormat2_Pag{
//Flag for paging(1)/direct indication(0), set to 1,1 bits
uint8_t type;
// Resourse Assignment (RU Assignment), 3 bits
uint8_t ResAssign;
// Modulation and Coding Scheme, 4 bits
uint8_t mcs;
// Repetition Number, 4 bits
uint8_t RepNum;
// Reserved 3 bits
uint8_t DCIRep;
};
typedef struct DCIFormat2_Pag DCIFormat2_Pagt;
#define sizeof_DCIFormat2_Pag_t 15
// struct DCI0_5MHz_TDD0 {
// /// type = 0 => DCI Format 0, type = 1 => DCI Format 1A
// uint32_t type:1;
// /// Hopping flag
// uint32_t hopping:1;
// /// RB Assignment (ceil(log2(N_RB_UL*(N_RB_UL+1)/2)) bits)
// uint32_t rballoc:9;
// /// Modulation and Coding Scheme and Redundancy Version
// uint32_t mcs:5;
// /// New Data Indicator
// uint32_t ndi:1;
// /// Power Control
// uint32_t TPC:2;
// /// Cyclic shift
// uint32_t cshift:3;
// /// DAI (TDD)
// uint32_t ulindex:2;
// /// CQI Request
// uint32_t cqi_req:1;
// /// Padding to get to size of DCI1A
// uint32_t padding:2;
// } __attribute__ ((__packed__));
// typedef struct DCI0_5MHz_TDD0 DCI0_5MHz_TDD0_t;
// #define sizeof_DCI0_5MHz_TDD_0_t 27
//Not sure if needed in NB-IoT
// struct DCI_INFO_EXTRACTED {
// /// type = 0 => DCI Format 0, type = 1 => DCI Format 1A
// uint8_t type;
// /// Resource Allocation Header
// uint8_t rah;
// /// HARQ Process
// uint8_t harq_pid;
// /// CQI Request
// uint8_t cqi_req;
// /// SRS Request
// uint8_t srs_req;
// /// Power Control
// uint8_t TPC;
// /// Localized/Distributed VRB
// uint8_t vrb_type;
// /// RB Assignment (ceil(log2(N_RB_DL/P)) bits)
// uint32_t rballoc;
// // Applicable only when vrb_type = 1
// uint8_t Ngap;
// /// Cyclic shift
// uint8_t cshift;
// /// Hopping flag
// uint8_t hopping;
// /// Downlink Assignment Index
// uint8_t dai;
// /// DAI (TDD)
// uint8_t ulindex;
// /// TB swap
// uint8_t tb_swap;
// /// TPMI information for precoding
// uint8_t tpmi;
// /// Redundancy version 2
// uint8_t rv2;
// /// New Data Indicator 2
// uint8_t ndi2;
// /// Modulation and Coding Scheme and Redundancy Version 2
// uint8_t mcs2;
// /// Redundancy version 1
// uint8_t rv1;
// /// New Data Indicator 1
// uint8_t ndi1;
// /// Modulation and Coding Scheme and Redundancy Version 1
// uint8_t mcs1;
// /// Scrambling ID
// uint64_t ap_si_nl_id:3;
// };
// typedef struct DCI_INFO_EXTRACTED DCI_INFO_EXTRACTED_t;
openair1/PHY/LTE_TRANSPORT/defs.h
View file @ 0bb24834
......@@ -33,6 +33,7 @@
#define __LTE_TRANSPORT_DEFS__H__
#include "PHY/defs.h"
#include "dci.h"
#include "dci_nb_iot.h"
#include "uci.h"
#ifndef STANDALONE_COMPILE
#include "UTIL/LISTS/list.h"
......
openair2/LAYER2/MAC/eNB_scheduler_RA_nb_iot.c
View file @ 0bb24834
......@@ -66,6 +66,172 @@
#include "T.h"
void NB_schedule_RA(module_id_t module_idP,frame_t frameP, sub_frame_t subframeP)
{
int CC_id;
eNB_MAC_INST_NB *eNB = &eNB_mac_inst_NB[module_idP];
RA_TEMPLATE_NB *RA_template;
unsigned char i,harq_pid,round;
int16_t rrc_sdu_length;
unsigned char lcid,offset;
int UE_id = -1;
unsigned short TBsize = -1;
unsigned short msg4_padding,msg4_post_padding,msg4_header;
DCI_PDU_NB *DCI_pdu;
// start_meas(&eNB->schedule_ra);
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
DCI_pdu = &eNB->common_channels[CC_id].DCI_pdu;
for (i=0; i<NB_RA_PROC_MAX; i++) {
RA_template = (RA_TEMPLATE_NB *)&eNB->common_channels[CC_id].RA_template[i];
if (RA_template->RA_active == TRUE) {
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d RA %d is active (generate RAR %d, generate_Msg4 %d, wait_ack_Msg4 %d, rnti %x)\n",
module_idP,CC_id,i,RA_template->generate_rar,RA_template->generate_Msg4,RA_template->wait_ack_Msg4, RA_template->rnti);
if (RA_template->generate_rar == 1) {
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d, subframeP %d: Generating RAR DCI (proc %d), RA_active %d format 1A (%d,%d))\n",
module_idP, CC_id, frameP, subframeP,i,
RA_template->RA_active,
RA_template->RA_dci_fmt1,
RA_template->RA_dci_size_bits1);
//directly fill DCI Filed base on DCI Nq for RAR
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->type=1;
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->orderIndicator=0;
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->Scheddly=1;//fixed delay approach?
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->ResAssign=0;
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->mcs=0;//fixes?//fixes? base on CE levels?
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->RepNum=0;//fixes? base on CE levels?
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->Reserved=0;
((DCIFormatN1_RAR_t*)&RA_template->RA_alloc_pdu1[0])->DCIRep=0;//fixes?
}
//New appoach for CCE allocaton, delete !CCE_allocation_infeasible..
else if (RA_template->generate_Msg4 == 1) {
// check for Msg4 Message
UE_id = find_UE_id(module_idP,RA_template->rnti);
if (UE_id == -1) { printf("%s:%d:%s: FATAL ERROR\n", __FILE__, __LINE__, __FUNCTION__); abort(); }
if (Is_rrc_registered == 1) {//Fixed mac_rrc_data_req
// Get RRCConnectionSetup for Piggyback
rrc_sdu_length = mac_rrc_data_req(module_idP,
CC_id,
frameP,
CCCH,
1, // 1 transport block
&eNB->common_channels[CC_id].CCCH_pdu.payload[0],
ENB_FLAG_YES,
module_idP,
0); // not used in this case
if (rrc_sdu_length == -1) {
mac_xface->macphy_exit("[MAC][eNB Scheduler] CCCH not allocated\n");
return; // not reached
} else {
//msg("[MAC][eNB %d] Frame %d, subframeP %d: got %d bytes from RRC\n",module_idP,frameP, subframeP,rrc_sdu_length);
}
}
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: UE_id %d, Is_rrc_registered %d, rrc_sdu_length %d\n",
module_idP, CC_id, frameP, subframeP,UE_id, Is_rrc_registered,rrc_sdu_length);
if (rrc_sdu_length>0) {
LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: Generating Msg4 with RRC Piggyback (RA proc %d, RNTI %x)\n",
module_idP, CC_id, frameP, subframeP,i,RA_template->rnti);
// Compute MCS for 3 PRB
msg4_header = 1+6+1; // CR header, CR CE, SDU header
//need to fixed ndi & msc base on NB-IoT DCI for Msg4
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->ndi=1;
if ((rrc_sdu_length+msg4_header) <= 22) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=4;
TBsize = 22;
} else if ((rrc_sdu_length+msg4_header) <= 28) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=5;
TBsize = 28;
} else if ((rrc_sdu_length+msg4_header) <= 32) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=6;
TBsize = 32;
} else if ((rrc_sdu_length+msg4_header) <= 41) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=7;
TBsize = 41;
} else if ((rrc_sdu_length+msg4_header) <= 49) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=8;
TBsize = 49;
} else if ((rrc_sdu_length+msg4_header) <= 57) {
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->mcs=9;
TBsize = 57;
}
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->type=1;
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->orderIndicator=0;
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->Scheddly=1;//fixed delay approach?
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->ResAssign=5;//fixed depend on mcs/tbs to Nsf
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->RepNum=1;//fixed base on CE levels
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->HARQackRes=0;//Avoid confict multiple Msg ACk
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->DCIRep=0;//fixed base on CE levels
}
}else if (RA_template->wait_ack_Msg4==1) {
// check HARQ status and retransmit if necessary
LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: Checking if Msg4 was acknowledged: \n",
module_idP,CC_id,frameP,subframeP);
// Get candidate harq_pid from PHY
mac_xface->get_ue_active_harq_pid(module_idP,CC_id,RA_template->rnti,frameP,subframeP,&harq_pid,&round,openair_harq_RA);
if (round>0) {
//RA_template->wait_ack_Msg4++;
// we have to schedule a retransmission
((DCIFormatN1_t*)&RA_template->RA_alloc_pdu2[0])->ndi=1;
// if (!CCE_allocation_infeasible(module_idP,CC_id,0,subframeP,2,RA_template->rnti)) {
// add_ue_spec_dci(DCI_pdu,
// (void*)&RA_template->RA_alloc_pdu2[0],
// RA_template->rnti,
// RA_template->RA_dci_size_bytes2,
// 2,
// RA_template->RA_dci_size_bits2,
// RA_template->RA_dci_fmt2,
// 0);
// printf("MAC: msg4 retransmission for rnti %x (round %d) fsf %d/%d\n", RA_template->rnti, round, frameP, subframeP);
// }
}else
printf("MAC: msg4 retransmission for rnti %x (round %d) fsf %d/%d CCE allocation failed!\n", RA_template->rnti, round, frameP, subframeP);
LOG_W(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d: Msg4 not acknowledged, adding ue specific dci (rnti %x) for RA (Msg4 Retransmission)\n",
module_idP,CC_id,frameP,subframeP,RA_template->rnti);
} else {
/* msg4 not received
if ((round == 0) && (RA_template->wait_ack_Msg4>1){
remove UE instance across all the layers: mac_xface->cancel_RA();
}
*/
printf("MAC: msg4 acknowledged for rnti %x fsf %d/%d, let's configure it\n", RA_template->rnti, frameP, subframeP);
LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, subframeP %d : Msg4 acknowledged\n",module_idP,CC_id,frameP,subframeP);
RA_template->wait_ack_Msg4=0;
RA_template->RA_active=FALSE;
UE_id = find_UE_id(module_idP,RA_template->rnti);
DevAssert( UE_id != -1 );
eNB_mac_inst_NB[module_idP].UE_list.UE_template[UE_PCCID(module_idP,UE_id)][UE_id].configured=TRUE;
}
}// RA_active
} // for i=0 .. N_RA_PROC-1
} // CC_id
// stop_meas(&eNB->schedule_ra);
}
/*This function should loop all over the preamble index*/
void NB_initiate_ra_proc(module_id_t module_idP, int CC_id,frame_t frameP, uint16_t preamble_index,int16_t timing_offset,sub_frame_t subframeP)
{
......
openair2/LAYER2/MAC/proto_nb_iot.h
View file @ 0bb24834
......@@ -825,6 +825,8 @@ void NB_eNB_dlsch_ulsch_scheduler(module_id_t module_idP, uint8_t cooperation_fl
/* \brief Function to indicate a received preamble on PRACH. It initiates the RA procedure.
In NB-IoT, it indicate preamble using the frequency to indicate the preamble.
*/
void NB_schedule_RA(module_id_t module_idP,frame_t frameP, sub_frame_t subframeP)
void NB_initiate_ra_proc(module_id_t module_idP,int CC_id,frame_t frameP, uint16_t preamble_index,int16_t timing_offset,uint8_t sect_id,sub_frame_t subframe,uint8_t f_id);
uint8_t *NB_get_dlsch_sdu(module_id_t module_idP,int CC_id,frame_t frameP,rnti_t rnti,uint8_t TBindex);
......
record.txt
View file @ 0bb24834
......@@ -28,3 +28,14 @@ openair2/Layer2/MAC/eNB_scheduler_RA_nb_iot.c
comment:
Functions: NB_initiate_ra_proc()
5/15
modified: openair1/PHY/INIT/defs.h
modified: openair1/PHY/LTE_TRANSPORT/defs.h
modified: openair2/LAYER2/MAC/eNB_scheduler_RA_nb_iot.c
modified: openair2/LAYER2/MAC/proto_nb_iot.h
comment:
Functions: Add NB_schedule_RA()
Data Structure: Add DCI Upacked format in openair1/PHY/LTE_TRANSPORT/defs.h
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