1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
/*
* 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 openair2/NR_PHY_INTERFACE/NR_IF_Module.c
* \brief data structures for PHY/MAC interface modules
* \author EURECOM/NTUST
* \date 2018
* \version 0.1
* \company Eurecom, NTUST
* \email: raymond.knopp@eurecom.fr, kroempa@gmail.com
* \note
* \warning
*/
#include "openair1/PHY/defs_eNB.h"
#include "openair1/PHY/phy_extern.h"
#include "openair1/SCHED_NR/fapi_nr_l1.h"
#include "openair2/NR_PHY_INTERFACE/NR_IF_Module.h"
#include "LAYER2/NR_MAC_COMMON/nr_mac_extern.h"
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/NR_MAC_gNB/mac_proto.h"
#include "common/ran_context.h"
#define MAX_IF_MODULES 100
NR_IF_Module_t *if_inst[MAX_IF_MODULES];
NR_Sched_Rsp_t Sched_INFO[MAX_IF_MODULES][MAX_NUM_CCs];
extern int oai_nfapi_harq_indication(nfapi_harq_indication_t *harq_ind);
extern int oai_nfapi_crc_indication(nfapi_crc_indication_t *crc_ind);
extern int oai_nfapi_cqi_indication(nfapi_cqi_indication_t *cqi_ind);
extern int oai_nfapi_sr_indication(nfapi_sr_indication_t *ind);
extern int oai_nfapi_rx_ind(nfapi_rx_indication_t *ind);
extern uint8_t nfapi_mode;
extern uint16_t sf_ahead;
void handle_nr_rach(NR_UL_IND_t *UL_info) {
if (UL_info->rach_ind.rach_indication_body.number_of_preambles>0) {
AssertFatal(UL_info->rach_ind.rach_indication_body.number_of_preambles==1,"More than 1 preamble not supported\n");
UL_info->rach_ind.rach_indication_body.number_of_preambles=0;
LOG_D(MAC,"UL_info[Frame %d, Slot %d] Calling initiate_ra_proc RACH:SFN/SF:%d\n",UL_info->frame,UL_info->slot, NFAPI_SFNSF2DEC(UL_info->rach_ind.sfn_sf));
initiate_ra_proc(UL_info->module_id,
UL_info->CC_id,
NFAPI_SFNSF2SFN(UL_info->rach_ind.sfn_sf),
NFAPI_SFNSF2SF(UL_info->rach_ind.sfn_sf),
UL_info->rach_ind.rach_indication_body.preamble_list[0].preamble_rel8.preamble,
UL_info->rach_ind.rach_indication_body.preamble_list[0].preamble_rel8.timing_advance,
UL_info->rach_ind.rach_indication_body.preamble_list[0].preamble_rel8.rnti,0
);
}
if (UL_info->rach_ind_br.rach_indication_body.number_of_preambles>0) {
AssertFatal(UL_info->rach_ind_br.rach_indication_body.number_of_preambles<5,"More than 4 preambles not supported\n");
for (int i=0; i<UL_info->rach_ind_br.rach_indication_body.number_of_preambles; i++) {
AssertFatal(UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel13.rach_resource_type>0,
"Got regular PRACH preamble, not BL/CE\n");
LOG_D(MAC,"Frame %d, Slot %d Calling initiate_ra_proc (CE_level %d)\n",UL_info->frame,UL_info->slot,
UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel13.rach_resource_type-1);
initiate_ra_proc(UL_info->module_id,
UL_info->CC_id,
UL_info->frame,
UL_info->slot,
UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel8.preamble,
UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel8.timing_advance,
UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel8.rnti,
UL_info->rach_ind_br.rach_indication_body.preamble_list[i].preamble_rel13.rach_resource_type);
}
UL_info->rach_ind_br.rach_indication_body.number_of_preambles=0;
}
}
void handle_nr_sr(NR_UL_IND_t *UL_info) {
if (nfapi_mode == 1) { // PNF
if (UL_info->sr_ind.sr_indication_body.number_of_srs>0) {
oai_nfapi_sr_indication(&UL_info->sr_ind);
}
} else {
for (int i=0; i<UL_info->sr_ind.sr_indication_body.number_of_srs; i++)
SR_indication(UL_info->module_id,
UL_info->CC_id,
UL_info->frame,
UL_info->slot,
UL_info->sr_ind.sr_indication_body.sr_pdu_list[i].rx_ue_information.rnti,
UL_info->sr_ind.sr_indication_body.sr_pdu_list[i].ul_cqi_information.ul_cqi);
}
UL_info->sr_ind.sr_indication_body.number_of_srs=0;
}
void handle_nr_cqi(NR_UL_IND_t *UL_info) {
if (nfapi_mode == 1) {
if (UL_info->cqi_ind.number_of_cqis>0) {
LOG_D(PHY,"UL_info->cqi_ind.number_of_cqis:%d\n", UL_info->cqi_ind.number_of_cqis);
nfapi_cqi_indication_t ind;
ind.header.message_id = NFAPI_RX_CQI_INDICATION;
ind.sfn_sf = UL_info->frame<<4 | UL_info->slot;
ind.cqi_indication_body = UL_info->cqi_ind;
oai_nfapi_cqi_indication(&ind);
UL_info->cqi_ind.number_of_cqis=0;
}
} else {
for (int i=0; i<UL_info->cqi_ind.number_of_cqis; i++)
cqi_indication(UL_info->module_id,
UL_info->CC_id,
UL_info->frame,
UL_info->slot,
UL_info->cqi_ind.cqi_pdu_list[i].rx_ue_information.rnti,
&UL_info->cqi_ind.cqi_pdu_list[i].cqi_indication_rel9,
UL_info->cqi_ind.cqi_raw_pdu_list[i].pdu,
&UL_info->cqi_ind.cqi_pdu_list[i].ul_cqi_information);
UL_info->cqi_ind.number_of_cqis=0;
}
}
void handle_nr_harq(NR_UL_IND_t *UL_info) {
if (nfapi_mode == 1 && UL_info->harq_ind.harq_indication_body.number_of_harqs>0) { // PNF
//LOG_D(PHY, "UL_info->harq_ind.harq_indication_body.number_of_harqs:%d Send to VNF\n", UL_info->harq_ind.harq_indication_body.number_of_harqs);
int retval = oai_nfapi_harq_indication(&UL_info->harq_ind);
if (retval!=0) {
LOG_E(PHY, "Failed to encode NFAPI HARQ_IND retval:%d\n", retval);
}
UL_info->harq_ind.harq_indication_body.number_of_harqs = 0;
} else {
for (int i=0; i<UL_info->harq_ind.harq_indication_body.number_of_harqs; i++)
harq_indication(UL_info->module_id,
UL_info->CC_id,
NFAPI_SFNSF2SFN(UL_info->harq_ind.sfn_sf),
NFAPI_SFNSF2SF(UL_info->harq_ind.sfn_sf),
&UL_info->harq_ind.harq_indication_body.harq_pdu_list[i]);
UL_info->harq_ind.harq_indication_body.number_of_harqs=0;
}
}
void handle_nr_ulsch(NR_UL_IND_t *UL_info) {
if(nfapi_mode == 1) {
if (UL_info->crc_ind.crc_indication_body.number_of_crcs>0) {
//LOG_D(PHY,"UL_info->crc_ind.crc_indication_body.number_of_crcs:%d CRC_IND:SFN/SF:%d\n", UL_info->crc_ind.crc_indication_body.number_of_crcs, NFAPI_SFNSF2DEC(UL_info->crc_ind.sfn_sf));
oai_nfapi_crc_indication(&UL_info->crc_ind);
UL_info->crc_ind.crc_indication_body.number_of_crcs = 0;
}
if (UL_info->rx_ind.rx_indication_body.number_of_pdus>0) {
//LOG_D(PHY,"UL_info->rx_ind.number_of_pdus:%d RX_IND:SFN/SF:%d\n", UL_info->rx_ind.rx_indication_body.number_of_pdus, NFAPI_SFNSF2DEC(UL_info->rx_ind.sfn_sf));
oai_nfapi_rx_ind(&UL_info->rx_ind);
UL_info->rx_ind.rx_indication_body.number_of_pdus = 0;
}
} else {
// printf("UL_info->rx_ind.rx_indication_body.number_of_pdus %d UL_info->crc_ind.crc_indication_body.number_of_crcs %d\n", UL_info->rx_ind.rx_indication_body.number_of_pdus, UL_info->crc_ind.crc_indication_body.number_of_crcs);
if (UL_info->rx_ind.rx_indication_body.number_of_pdus>0 && UL_info->crc_ind.crc_indication_body.number_of_crcs>0) {
for (int i=0; i<UL_info->rx_ind.rx_indication_body.number_of_pdus; i++) {
for (int j=0; j<UL_info->crc_ind.crc_indication_body.number_of_crcs; j++) {
// find crc_indication j corresponding rx_indication i
LOG_D(PHY,"UL_info->crc_ind.crc_indication_body.crc_pdu_list[%d].rx_ue_information.rnti:%04x UL_info->rx_ind.rx_indication_body.rx_pdu_list[%d].rx_ue_information.rnti:%04x\n", j,
UL_info->crc_ind.crc_indication_body.crc_pdu_list[j].rx_ue_information.rnti, i, UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_ue_information.rnti);
if (UL_info->crc_ind.crc_indication_body.crc_pdu_list[j].rx_ue_information.rnti ==
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_ue_information.rnti) {
LOG_D(PHY, "UL_info->crc_ind.crc_indication_body.crc_pdu_list[%d].crc_indication_rel8.crc_flag:%d\n", j, UL_info->crc_ind.crc_indication_body.crc_pdu_list[j].crc_indication_rel8.crc_flag);
if (UL_info->crc_ind.crc_indication_body.crc_pdu_list[j].crc_indication_rel8.crc_flag == 1) { // CRC error indication
LOG_D(MAC,"Frame %d, Slot %d Calling rx_sdu (CRC error) \n",UL_info->frame,UL_info->slot);
nr_rx_sdu(UL_info->module_id,
UL_info->CC_id,
NFAPI_SFNSF2SFN(UL_info->rx_ind.sfn_sf), //UL_info->frame,
NFAPI_SFNSF2SF(UL_info->rx_ind.sfn_sf), //UL_info->slot,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_ue_information.rnti,
(uint8_t *)NULL,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.length,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.timing_advance,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.ul_cqi);
}
else {
LOG_D(MAC,"Frame %d, Slot %d Calling rx_sdu (CRC ok) \n",UL_info->frame,UL_info->slot);
nr_rx_sdu(UL_info->module_id,
UL_info->CC_id,
NFAPI_SFNSF2SFN(UL_info->rx_ind.sfn_sf), //UL_info->frame,
NFAPI_SFNSF2SF(UL_info->rx_ind.sfn_sf), //UL_info->slot,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_ue_information.rnti,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].data,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.length,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.timing_advance,
UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.ul_cqi);
}
//printf("rx_indication_rel8.timing_advance %d\n", UL_info->rx_ind.rx_indication_body.rx_pdu_list[i].rx_indication_rel8.timing_advance);
break;
} //if (UL_info->crc_ind.crc_pdu_list[j].rx_ue_information.rnti ==
// UL_info->rx_ind.rx_pdu_list[i].rx_ue_information.rnti)
} // for (j=0;j<UL_info->crc_ind.crc_indication_body.number_of_crcs;j++)
} // for (i=0;i<UL_info->rx_ind.number_of_pdus;i++)
UL_info->crc_ind.crc_indication_body.number_of_crcs=0;
UL_info->rx_ind.rx_indication_body.number_of_pdus = 0;
} // UL_info->rx_ind.rx_indication_body.number_of_pdus>0 && UL_info->slot && UL_info->crc_ind.crc_indication_body.number_of_crcs>0
else if (UL_info->rx_ind.rx_indication_body.number_of_pdus!=0 || UL_info->crc_ind.crc_indication_body.number_of_crcs!=0) {
LOG_E(PHY,"hoping not to have mis-match between CRC ind and RX ind - hopefully the missing message is coming shortly rx_ind:%d(SFN/SF:%05d) crc_ind:%d(SFN/SF:%05d) UL_info(SFN/SF):%04d%d\n",
UL_info->rx_ind.rx_indication_body.number_of_pdus, NFAPI_SFNSF2DEC(UL_info->rx_ind.sfn_sf),
UL_info->crc_ind.crc_indication_body.number_of_crcs, NFAPI_SFNSF2DEC(UL_info->crc_ind.sfn_sf),
UL_info->frame, UL_info->slot);
}
}
}
void NR_UL_indication(NR_UL_IND_t *UL_info) {
AssertFatal(UL_info!=NULL,"UL_INFO is null\n");
#ifdef DUMP_FAPI
dump_ul(UL_info);
#endif
module_id_t module_id = UL_info->module_id;
int CC_id = UL_info->CC_id;
NR_Sched_Rsp_t *sched_info = &Sched_INFO[module_id][CC_id];
NR_IF_Module_t *ifi = if_inst[module_id];
gNB_MAC_INST *mac = RC.nrmac[module_id];
LOG_D(PHY,"SFN/SF:%d%d module_id:%d CC_id:%d UL_info[rx_ind:%d harqs:%d crcs:%d cqis:%d preambles:%d sr_ind:%d]\n",
UL_info->frame,UL_info->slot,
module_id,CC_id,
UL_info->rx_ind.rx_indication_body.number_of_pdus, UL_info->harq_ind.harq_indication_body.number_of_harqs, UL_info->crc_ind.crc_indication_body.number_of_crcs, UL_info->cqi_ind.number_of_cqis,
UL_info->rach_ind.rach_indication_body.number_of_preambles, UL_info->sr_ind.sr_indication_body.number_of_srs);
if (nfapi_mode != 1) {
if (ifi->CC_mask==0) {
ifi->current_frame = UL_info->frame;
ifi->current_slot = UL_info->slot;
} else {
AssertFatal(UL_info->frame != ifi->current_frame,"CC_mask %x is not full and frame has changed\n",ifi->CC_mask);
AssertFatal(UL_info->slot != ifi->current_slot,"CC_mask %x is not full and slot has changed\n",ifi->CC_mask);
}
ifi->CC_mask |= (1<<CC_id);
}
// clear DL/UL info for new scheduling round
clear_nr_nfapi_information(mac,CC_id,UL_info->frame,UL_info->slot);
handle_nr_rach(UL_info);
handle_nr_sr(UL_info);
handle_nr_cqi(UL_info);
handle_nr_harq(UL_info);
// clear HI prior to handling ULSCH
mac->HI_DCI0_req[CC_id].hi_dci0_request_body.number_of_hi = 0;
handle_nr_ulsch(UL_info);
if (nfapi_mode != 1) {
if (ifi->CC_mask == ((1<<MAX_NUM_CCs)-1)) {
/*
eNB_dlsch_ulsch_scheduler(module_id,
(UL_info->frame+((UL_info->slot>(9-sf_ahead))?1:0)) % 1024,
(UL_info->slot+sf_ahead)%10);
*/
nfapi_nr_config_request_t *cfg = &mac->config[CC_id];
int spf = get_spf(cfg);
gNB_dlsch_ulsch_scheduler(module_id,
UL_info->frame,
UL_info->slot,
(UL_info->frame+((UL_info->slot>(spf-1-sf_ahead))?1:0)) % 1024,
(UL_info->slot+sf_ahead)%spf);
ifi->CC_mask = 0;
sched_info->module_id = module_id;
sched_info->CC_id = CC_id;
sched_info->frame = (UL_info->frame + ((UL_info->slot>(spf-1-sf_ahead)) ? 1 : 0)) % 1024;
sched_info->slot = (UL_info->slot+sf_ahead)%spf;
sched_info->DL_req = &mac->DL_req[CC_id];
sched_info->HI_DCI0_req = &mac->HI_DCI0_req[CC_id];
if ((mac->common_channels[CC_id].tdd_Config==NULL) ||
(is_nr_UL_slot(&mac->common_channels[CC_id],(sched_info->slot+sf_ahead)%spf)>0))
sched_info->UL_tti_req = &mac->UL_tti_req[CC_id];
else
sched_info->UL_tti_req = NULL;
sched_info->TX_req = &mac->TX_req[CC_id];
#ifdef DUMP_FAPI
dump_dl(sched_info);
#endif
if (ifi->NR_Schedule_response) {
AssertFatal(ifi->NR_Schedule_response!=NULL,
"nr_schedule_response is null (mod %d, cc %d)\n",
module_id,
CC_id);
ifi->NR_Schedule_response(sched_info);
}
LOG_D(PHY,"NR_Schedule_response: SFN_SF:%d%d dl_pdus:%d\n",sched_info->frame,sched_info->slot,sched_info->DL_req->dl_config_request_body.number_pdu);
}
}
}
NR_IF_Module_t *NR_IF_Module_init(int Mod_id) {
AssertFatal(Mod_id<MAX_MODULES,"Asking for Module %d > %d\n",Mod_id,MAX_IF_MODULES);
LOG_D(PHY,"Installing callbacks for IF_Module - UL_indication\n");
if (if_inst[Mod_id]==NULL) {
if_inst[Mod_id] = (NR_IF_Module_t *)malloc(sizeof(NR_IF_Module_t));
memset((void *)if_inst[Mod_id],0,sizeof(NR_IF_Module_t));
if_inst[Mod_id]->CC_mask=0;
if_inst[Mod_id]->NR_UL_indication = NR_UL_indication;
AssertFatal(pthread_mutex_init(&if_inst[Mod_id]->if_mutex,NULL)==0,
"allocation of if_inst[%d]->if_mutex fails\n",Mod_id);
}
return if_inst[Mod_id];
}