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5c23af773abaebf8425b45f745e3c8efd6a6e4a9
openairinterface5g/openair2/LAYER2/MAC/eNB_scheduler.c
T
Bi-Ruei, Chiu 5c23af773a Compare version number using MAKE_VERSION macro to provide better SW configuration: 
1. Previous SW configuration for different RRC version relies on whether macro Rel10,
   Rel14 defined or not by checking #ifdef Rel14 or #if defined(Rel10) || defined(R14).
   Whenever there is a newer RRC version, e.g. Rel15, it will be very a tedious and
   error-prone job to add defined(Rel15) in every place.

2. Some RRC messages are defined in release 13 instead of release 14, NB-IoT
   feature is one of such example. Our code shall reflect this fact instead of using
   an afterward version number in software configuration.

3. Some RRC messages or some fields of certain RRC messages are added in the middle
   a release, e.g. SystemInformationBlockType1_v1310_IEs_t defined in RRC 13.1.0
   and RRC 9.2.0 made some changes to SIB12 and SIB13 so we have sib12_v920 and
   sib13_v920 fields in SIB12 and SIB13's struct.
   We need a finer grain of control when using ASN1 from different RRC version.

4. S1AP also has this problem that it use UPDATE_RELEASE_9 and UPDATE_RELEASE_10 to
   differentiate between various S1AP version.

This commit propose using MAKE_VERSION(x,y,z) to designate the version number and
modify current conditional compilation accordingly.

Note: 2018/04/16, Modified based on Cedric's comment.
2018-04-16 12:32:29 +02:00

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/*
* 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 eNB_scheduler.c
* \brief eNB scheduler top level function operates on per subframe basis
* \author Navid Nikaein and Raymond Knopp
* \date 2010 - 2014
* \email: navid.nikaein@eurecom.fr
* \version 0.5
* @ingroup _mac
*/
#include "assertions.h"
#include "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/extern.h"
#include "LAYER2/MAC/proto.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "RRC/LITE/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
//#include "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"
//Agent-related headers
#include "flexran_agent_extern.h"
#include "flexran_agent_mac.h"
#if defined(ENABLE_ITTI)
#include "intertask_interface.h"
#endif
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
extern RAN_CONTEXT_t RC;
extern int phy_test;
uint16_t pdcch_order_table[6] = { 31, 31, 511, 2047, 2047, 8191 };
void
schedule_SRS(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP)
{
eNB_MAC_INST *eNB = RC.mac[module_idP];
UE_list_t *UE_list = &eNB->UE_list;
nfapi_ul_config_request_body_t *ul_req;
int CC_id, UE_id;
COMMON_channels_t *cc = RC.mac[module_idP]->common_channels;
SoundingRS_UL_ConfigCommon_t *soundingRS_UL_ConfigCommon;
struct SoundingRS_UL_ConfigDedicated *soundingRS_UL_ConfigDedicated;
uint8_t TSFC;
uint16_t deltaTSFC; // bitmap
uint8_t srs_SubframeConfig;
// table for TSFC (Period) and deltaSFC (offset)
const uint16_t deltaTSFCTabType1[15][2] = { {1, 1}, {1, 2}, {2, 2}, {1, 5}, {2, 5}, {4, 5}, {8, 5}, {3, 5}, {12, 5}, {1, 10}, {2, 10}, {4, 10}, {8, 10}, {351, 10}, {383, 10} }; // Table 5.5.3.3-2 3GPP 36.211 FDD
const uint16_t deltaTSFCTabType2[14][2] = { {2, 5}, {6, 5}, {10, 5}, {18, 5}, {14, 5}, {22, 5}, {26, 5}, {30, 5}, {70, 10}, {74, 10}, {194, 10}, {326, 10}, {586, 10}, {210, 10} }; // Table 5.5.3.3-2 3GPP 36.211 TDD
uint16_t srsPeriodicity, srsOffset;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
soundingRS_UL_ConfigCommon = &cc[CC_id].radioResourceConfigCommon->soundingRS_UL_ConfigCommon;
// check if SRS is enabled in this frame/subframe
if (soundingRS_UL_ConfigCommon) {
srs_SubframeConfig = soundingRS_UL_ConfigCommon->choice.setup.srs_SubframeConfig;
if (cc[CC_id].tdd_Config == NULL) { // FDD
deltaTSFC = deltaTSFCTabType1[srs_SubframeConfig][0];
TSFC = deltaTSFCTabType1[srs_SubframeConfig][1];
} else { // TDD
deltaTSFC = deltaTSFCTabType2[srs_SubframeConfig][0];
TSFC = deltaTSFCTabType2[srs_SubframeConfig][1];
}
// Sounding reference signal subframes are the subframes satisfying ns/2 mod TSFC (- deltaTSFC
uint16_t tmp = (subframeP % TSFC);
if ((1 << tmp) & deltaTSFC) {
// This is an SRS subframe, loop over UEs
for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
if (RC.mac[module_idP]->UE_list.active[UE_id] != TRUE)
continue;
ul_req = &RC.mac[module_idP]->UL_req[CC_id].ul_config_request_body;
// drop the allocation if the UE hasn't send RRCConnectionSetupComplete yet
if (mac_eNB_get_rrc_status(module_idP,UE_RNTI(module_idP, UE_id)) < RRC_CONNECTED) continue;
AssertFatal(UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated != NULL,
"physicalConfigDedicated is null for UE %d\n",
UE_id);
if ((soundingRS_UL_ConfigDedicated = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->soundingRS_UL_ConfigDedicated) != NULL) {
if (soundingRS_UL_ConfigDedicated->present == SoundingRS_UL_ConfigDedicated_PR_setup) {
get_srs_pos(&cc[CC_id],
soundingRS_UL_ConfigDedicated->choice.
setup.srs_ConfigIndex,
&srsPeriodicity, &srsOffset);
if (((10 * frameP + subframeP) % srsPeriodicity) == srsOffset) {
// Program SRS
ul_req->srs_present = 1;
nfapi_ul_config_request_pdu_t * ul_config_pdu = &ul_req->ul_config_pdu_list[ul_req->number_of_pdus];
memset((void *) ul_config_pdu, 0, sizeof(nfapi_ul_config_request_pdu_t));
ul_config_pdu->pdu_type = NFAPI_UL_CONFIG_SRS_PDU_TYPE;
ul_config_pdu->pdu_size = 2 + (uint8_t) (2 + sizeof(nfapi_ul_config_srs_pdu));
ul_config_pdu->srs_pdu.srs_pdu_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_SRS_PDU_REL8_TAG;
ul_config_pdu->srs_pdu.srs_pdu_rel8.size = (uint8_t)sizeof(nfapi_ul_config_srs_pdu);
ul_config_pdu->srs_pdu.srs_pdu_rel8.rnti = UE_list->UE_template[CC_id][UE_id].rnti;
ul_config_pdu->srs_pdu.srs_pdu_rel8.srs_bandwidth = soundingRS_UL_ConfigDedicated->choice.setup.srs_Bandwidth;
ul_config_pdu->srs_pdu.srs_pdu_rel8.frequency_domain_position = soundingRS_UL_ConfigDedicated->choice.setup.freqDomainPosition;
ul_config_pdu->srs_pdu.srs_pdu_rel8.srs_hopping_bandwidth = soundingRS_UL_ConfigDedicated->choice.setup.srs_HoppingBandwidth;;
ul_config_pdu->srs_pdu.srs_pdu_rel8.transmission_comb = soundingRS_UL_ConfigDedicated->choice.setup.transmissionComb;
ul_config_pdu->srs_pdu.srs_pdu_rel8.i_srs = soundingRS_UL_ConfigDedicated->choice.setup.srs_ConfigIndex;
ul_config_pdu->srs_pdu.srs_pdu_rel8.sounding_reference_cyclic_shift = soundingRS_UL_ConfigDedicated->choice.setup.cyclicShift; // ul_config_pdu->srs_pdu.srs_pdu_rel10.antenna_port = ;//
// ul_config_pdu->srs_pdu.srs_pdu_rel13.number_of_combs = ;//
RC.mac[module_idP]->UL_req[CC_id].sfn_sf = (frameP << 4) + subframeP;
RC.mac[module_idP]->UL_req[CC_id].header.message_id = NFAPI_UL_CONFIG_REQUEST;
ul_req->number_of_pdus++;
} // if (((10*frameP+subframeP) % srsPeriodicity) == srsOffset)
} // if (soundingRS_UL_ConfigDedicated->present == SoundingRS_UL_ConfigDedicated_PR_setup)
} // if ((soundingRS_UL_ConfigDedicated = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->soundingRS_UL_ConfigDedicated)!=NULL)
} // for (UE_id ...
} // if((1<<tmp) & deltaTSFC)
} // SRS config
}
}
void
schedule_CSI(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP)
{
eNB_MAC_INST *eNB = RC.mac[module_idP];
UE_list_t *UE_list = &eNB->UE_list;
COMMON_channels_t *cc;
nfapi_ul_config_request_body_t *ul_req;
int CC_id, UE_id;
struct CQI_ReportPeriodic *cqi_ReportPeriodic;
uint16_t Npd, N_OFFSET_CQI;
int H;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
if (UE_list->active[UE_id] != TRUE)
continue;
ul_req = &RC.mac[module_idP]->UL_req[CC_id].ul_config_request_body;
// drop the allocation if the UE hasn't send RRCConnectionSetupComplete yet
if (mac_eNB_get_rrc_status(module_idP, UE_RNTI(module_idP, UE_id)) < RRC_CONNECTED) continue;
AssertFatal(UE_list->
UE_template[CC_id][UE_id].physicalConfigDedicated
!= NULL,
"physicalConfigDedicated is null for UE %d\n",
UE_id);
if (UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->cqi_ReportConfig) {
if ((cqi_ReportPeriodic = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->cqi_ReportConfig->cqi_ReportPeriodic) != NULL
&& (cqi_ReportPeriodic->present != CQI_ReportPeriodic_PR_release)) {
//Rel8 Periodic CQI/PMI/RI reporting
get_csi_params(cc, cqi_ReportPeriodic, &Npd,
&N_OFFSET_CQI, &H);
if ((((frameP * 10) + subframeP) % Npd) == N_OFFSET_CQI) { // CQI opportunity
UE_list->UE_sched_ctrl[UE_id].feedback_cnt[CC_id] = (((frameP * 10) + subframeP) / Npd) % H;
// Program CQI
nfapi_ul_config_request_pdu_t *ul_config_pdu = &ul_req->ul_config_pdu_list[ul_req->number_of_pdus];
memset((void *) ul_config_pdu, 0,
sizeof(nfapi_ul_config_request_pdu_t));
ul_config_pdu->pdu_type = NFAPI_UL_CONFIG_UCI_CQI_PDU_TYPE;
ul_config_pdu->pdu_size = 2 + (uint8_t) (2 + sizeof(nfapi_ul_config_uci_cqi_pdu));
ul_config_pdu->uci_cqi_pdu.ue_information.ue_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_UE_INFORMATION_REL8_TAG;
ul_config_pdu->uci_cqi_pdu.ue_information.ue_information_rel8.rnti = UE_list->UE_template[CC_id][UE_id].rnti;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_CQI_INFORMATION_REL8_TAG;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.pucch_index = cqi_ReportPeriodic->choice.setup.cqi_PUCCH_ResourceIndex;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.dl_cqi_pmi_size = get_rel8_dl_cqi_pmi_size(&UE_list->UE_sched_ctrl[UE_id], CC_id, cc,
get_tmode(module_idP, CC_id, UE_id),
cqi_ReportPeriodic);
ul_req->number_of_pdus++;
ul_req->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
// PUT rel10-13 UCI options here
#endif
} else
if ((cqi_ReportPeriodic->choice.setup.ri_ConfigIndex)
&& ((((frameP * 10) + subframeP) % ((H * Npd) << (*cqi_ReportPeriodic->choice.setup.ri_ConfigIndex / 161))) == N_OFFSET_CQI + (*cqi_ReportPeriodic->choice.setup.ri_ConfigIndex % 161))) { // RI opportunity
// Program RI
nfapi_ul_config_request_pdu_t *ul_config_pdu = &ul_req->ul_config_pdu_list[ul_req->number_of_pdus];
memset((void *) ul_config_pdu, 0,
sizeof(nfapi_ul_config_request_pdu_t));
ul_config_pdu->pdu_type = NFAPI_UL_CONFIG_UCI_CQI_PDU_TYPE;
ul_config_pdu->pdu_size = 2 + (uint8_t) (2 + sizeof(nfapi_ul_config_uci_cqi_pdu));
ul_config_pdu->uci_cqi_pdu.ue_information.ue_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_UE_INFORMATION_REL8_TAG;
ul_config_pdu->uci_cqi_pdu.ue_information.ue_information_rel8.rnti = UE_list->UE_template[CC_id][UE_id].rnti;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_CQI_INFORMATION_REL8_TAG;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.pucch_index = cqi_ReportPeriodic->choice.setup.cqi_PUCCH_ResourceIndex;
ul_config_pdu->uci_cqi_pdu.cqi_information.cqi_information_rel8.dl_cqi_pmi_size = (cc->p_eNB == 2) ? 1 : 2;
RC.mac[module_idP]->UL_req[CC_id].sfn_sf = (frameP << 4) + subframeP;
ul_req->number_of_pdus++;
ul_req->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
}
} // if ((cqi_ReportPeriodic = cqi_ReportConfig->cqi_ReportPeriodic)!=NULL) {
} // if (UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->cqi_ReportConfig)
} // for (UE_id=UE_list->head; UE_id>=0; UE_id=UE_list->next[UE_id]) {
} // for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
}
void
schedule_SR(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP)
{
eNB_MAC_INST *eNB = RC.mac[module_idP];
UE_list_t *UE_list = &eNB->UE_list;
nfapi_ul_config_request_t *ul_req;
nfapi_ul_config_request_body_t *ul_req_body;
int CC_id;
int UE_id;
SchedulingRequestConfig_t *SRconfig;
int skip_ue;
int is_harq;
nfapi_ul_config_sr_information sr;
int i;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
RC.mac[module_idP]->UL_req[CC_id].sfn_sf = (frameP << 4) + subframeP;
for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
if (RC.mac[module_idP]->UE_list.active[UE_id] != TRUE) continue;
ul_req = &RC.mac[module_idP]->UL_req[CC_id];
ul_req_body = &ul_req->ul_config_request_body;
// drop the allocation if the UE hasn't send RRCConnectionSetupComplete yet
if (mac_eNB_get_rrc_status(module_idP, UE_RNTI(module_idP, UE_id)) < RRC_CONNECTED) continue;
AssertFatal(UE_list->
UE_template[CC_id][UE_id].physicalConfigDedicated!= NULL,
"physicalConfigDedicated is null for UE %d\n",
UE_id);
if ((SRconfig = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->schedulingRequestConfig) != NULL) {
if (SRconfig->present == SchedulingRequestConfig_PR_setup) {
if (SRconfig->choice.setup.sr_ConfigIndex <= 4) { // 5 ms SR period
if ((subframeP % 5) != SRconfig->choice.setup.sr_ConfigIndex) continue;
} else if (SRconfig->choice.setup.sr_ConfigIndex <= 14) { // 10 ms SR period
if (subframeP != (SRconfig->choice.setup.sr_ConfigIndex - 5)) continue;
} else if (SRconfig->choice.setup.sr_ConfigIndex <= 34) { // 20 ms SR period
if ((10 * (frameP & 1) + subframeP) != (SRconfig->choice.setup.sr_ConfigIndex - 15)) continue;
} else if (SRconfig->choice.setup.sr_ConfigIndex <= 74) { // 40 ms SR period
if ((10 * (frameP & 3) + subframeP) != (SRconfig->choice.setup.sr_ConfigIndex - 35)) continue;
} else if (SRconfig->choice.setup.sr_ConfigIndex <= 154) { // 80 ms SR period
if ((10 * (frameP & 7) + subframeP) != (SRconfig->choice.setup.sr_ConfigIndex - 75)) continue;
}
} // SRconfig->present == SchedulingRequestConfig_PR_setup)
} // SRconfig = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->schedulingRequestConfig)!=NULL)
// if we get here there is some PUCCH1 reception to schedule for SR
skip_ue = 0;
is_harq = 0;
// check that there is no existing UL grant for ULSCH which overrides the SR
for (i = 0; i < ul_req_body->number_of_pdus; i++) {
if (((ul_req_body->ul_config_pdu_list[i].pdu_type == NFAPI_UL_CONFIG_ULSCH_PDU_TYPE) ||
(ul_req_body->ul_config_pdu_list[i].pdu_type == NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE) ||
(ul_req_body->ul_config_pdu_list[i].pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_RI_PDU_TYPE) ||
(ul_req_body->ul_config_pdu_list[i].pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE)) &&
(ul_req_body->ul_config_pdu_list[i].ulsch_pdu.ulsch_pdu_rel8.rnti == UE_list->UE_template[CC_id][UE_id].rnti)) {
skip_ue = 1;
break;
}
/* if there is already an HARQ pdu, convert to SR_HARQ */
else if ((ul_req_body->ul_config_pdu_list[i].pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE) &&
(ul_req_body->ul_config_pdu_list[i].uci_harq_pdu.ue_information.ue_information_rel8.rnti == UE_list->UE_template[CC_id][UE_id].rnti)) {
is_harq = 1;
break;
}
}
// drop the allocation because ULSCH with handle it with BSR
if (skip_ue == 1) continue;
LOG_D(MAC,"Frame %d, Subframe %d : Scheduling SR for UE %d/%x is_harq:%d\n",frameP,subframeP,UE_id,UE_list->UE_template[CC_id][UE_id].rnti, is_harq);
// check Rel10 or Rel8 SR
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
if ((UE_list-> UE_template[CC_id][UE_id].physicalConfigDedicated->ext2)
&& (UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->ext2->schedulingRequestConfig_v1020)
&& (UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->ext2->schedulingRequestConfig_v1020)) {
sr.sr_information_rel10.tl.tag = NFAPI_UL_CONFIG_REQUEST_SR_INFORMATION_REL10_TAG;
sr.sr_information_rel10.number_of_pucch_resources = 1;
sr.sr_information_rel10.pucch_index_p1 = *UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->ext2->schedulingRequestConfig_v1020->sr_PUCCH_ResourceIndexP1_r10;
LOG_D(MAC,"REL10 PUCCH INDEX P1:%d\n", sr.sr_information_rel10.pucch_index_p1);
} else
#endif
{
sr.sr_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_SR_INFORMATION_REL8_TAG;
sr.sr_information_rel8.pucch_index = UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->schedulingRequestConfig->choice.setup.sr_PUCCH_ResourceIndex;
LOG_D(MAC,"REL8 PUCCH INDEX:%d\n", sr.sr_information_rel8.pucch_index);
}
/* if there is already an HARQ pdu, convert to SR_HARQ */
if (is_harq) {
nfapi_ul_config_harq_information h = ul_req_body->ul_config_pdu_list[i].uci_harq_pdu.harq_information;
ul_req_body->ul_config_pdu_list[i].pdu_type = NFAPI_UL_CONFIG_UCI_SR_HARQ_PDU_TYPE;
ul_req_body->ul_config_pdu_list[i].uci_sr_harq_pdu.sr_information = sr;
ul_req_body->ul_config_pdu_list[i].uci_sr_harq_pdu.harq_information = h;
} else {
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].pdu_type = NFAPI_UL_CONFIG_UCI_SR_PDU_TYPE;
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].uci_sr_pdu.ue_information.ue_information_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_UE_INFORMATION_REL8_TAG;
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].uci_sr_pdu.ue_information.ue_information_rel8.rnti = UE_list->UE_template[CC_id][UE_id].rnti;
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].uci_sr_pdu.ue_information.ue_information_rel11.tl.tag = 0;
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].uci_sr_pdu.ue_information.ue_information_rel13.tl.tag = 0;
ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus].uci_sr_pdu.sr_information = sr;
ul_req_body->number_of_pdus++;
} /* if (is_harq) */
ul_req_body->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
} // for (UE_id=UE_list->head; UE_id>=0; UE_id=UE_list->next[UE_id])
} // for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++)
}
extern uint8_t nfapi_mode;
void
check_ul_failure(module_id_t module_idP, int CC_id, int UE_id,
frame_t frameP, sub_frame_t subframeP)
{
UE_list_t *UE_list = &RC.mac[module_idP]->UE_list;
nfapi_dl_config_request_t *DL_req = &RC.mac[module_idP]->DL_req[0];
uint16_t rnti = UE_RNTI(module_idP, UE_id);
COMMON_channels_t *cc = RC.mac[module_idP]->common_channels;
// check uplink failure
if ((UE_list->UE_sched_ctrl[UE_id].ul_failure_timer > 0) &&
(UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync == 0)) {
LOG_I(MAC, "UE %d rnti %x: UL Failure timer %d \n", UE_id, rnti,
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer);
if (UE_list->UE_sched_ctrl[UE_id].ra_pdcch_order_sent == 0) {
UE_list->UE_sched_ctrl[UE_id].ra_pdcch_order_sent = 1;
// add a format 1A dci for this UE to request an RA procedure (only one UE per subframe)
nfapi_dl_config_request_pdu_t *dl_config_pdu = &DL_req[CC_id].dl_config_request_body.dl_config_pdu_list[DL_req[CC_id].dl_config_request_body.number_pdu];
memset((void *) dl_config_pdu, 0,sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dci_dl_pdu));
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format = NFAPI_DL_DCI_FORMAT_1A;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = get_aggregation(get_bw_index(module_idP, CC_id),
UE_list->UE_sched_ctrl[UE_id].
dl_cqi[CC_id], format1A);
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI : see Table 4-10 from SCF082 - nFAPI specifications
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000; // equal to RS power
AssertFatal((cc[CC_id].mib->message.dl_Bandwidth >= 0) && (cc[CC_id].mib->message.dl_Bandwidth < 6),
"illegal dl_Bandwidth %d\n",
(int) cc[CC_id].mib->message.dl_Bandwidth);
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding = pdcch_order_table[cc[CC_id].mib->message.dl_Bandwidth];
DL_req[CC_id].dl_config_request_body.number_dci++;
DL_req[CC_id].dl_config_request_body.number_pdu++;
DL_req[CC_id].dl_config_request_body.tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
LOG_I(MAC,
"UE %d rnti %x: sending PDCCH order for RAPROC (failure timer %d), resource_block_coding %d \n",
UE_id, rnti,
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer,
dl_config_pdu->dci_dl_pdu.
dci_dl_pdu_rel8.resource_block_coding);
} else { // ra_pdcch_sent==1
LOG_I(MAC,
"UE %d rnti %x: sent PDCCH order for RAPROC waiting (failure timer %d) \n",
UE_id, rnti,
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer);
if ((UE_list->UE_sched_ctrl[UE_id].ul_failure_timer % 40) == 0) UE_list->UE_sched_ctrl[UE_id].ra_pdcch_order_sent = 0; // resend every 4 frames
}
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer++;
// check threshold
if (UE_list->UE_sched_ctrl[UE_id].ul_failure_timer > 20000) {
// inform RRC of failure and clear timer
LOG_I(MAC,
"UE %d rnti %x: UL Failure after repeated PDCCH orders: Triggering RRC \n",
UE_id, rnti);
mac_eNB_rrc_ul_failure(module_idP, CC_id, frameP, subframeP,rnti);
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer = 0;
UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync = 1;
//Inform the controller about the UE deactivation. Should be moved to RRC agent in the future
if (rrc_agent_registered[module_idP]) {
LOG_W(MAC, "notify flexran Agent of UE state change\n");
agent_rrc_xface[module_idP]->flexran_agent_notify_ue_state_change(module_idP,
rnti, PROTOCOL__FLEX_UE_STATE_CHANGE_TYPE__FLUESC_DEACTIVATED);
}
}
} // ul_failure_timer>0
#if 0
/* U-plane inactivity timer is disabled. Uncomment to re-enable. */
UE_list->UE_sched_ctrl[UE_id].uplane_inactivity_timer++;
if(UE_list->UE_sched_ctrl[UE_id].uplane_inactivity_timer > (U_PLANE_INACTIVITY_VALUE*subframe_num(&RC.eNB[module_idP][CC_id]->frame_parms))){
LOG_D(MAC,"UE %d rnti %x: U-Plane Failure after repeated PDCCH orders: Triggering RRC \n",UE_id,rnti);
mac_eNB_rrc_uplane_failure(module_idP,CC_id,frameP,subframeP,rnti);
UE_list->UE_sched_ctrl[UE_id].uplane_inactivity_timer = 0;
}// time > 60s
#endif
}
void
clear_nfapi_information(eNB_MAC_INST * eNB, int CC_idP,
frame_t frameP, sub_frame_t subframeP)
{
nfapi_dl_config_request_t *DL_req = &eNB->DL_req[0];
nfapi_ul_config_request_t *UL_req = &eNB->UL_req[0];
nfapi_hi_dci0_request_t *HI_DCI0_req = &eNB->HI_DCI0_req[0];
nfapi_tx_request_t *TX_req = &eNB->TX_req[0];
eNB->pdu_index[CC_idP] = 0;
if (nfapi_mode==0 || nfapi_mode == 1) { // monolithic or PNF
DL_req[CC_idP].dl_config_request_body.number_pdcch_ofdm_symbols = 1;
DL_req[CC_idP].dl_config_request_body.number_dci = 0;
DL_req[CC_idP].dl_config_request_body.number_pdu = 0;
DL_req[CC_idP].dl_config_request_body.number_pdsch_rnti = 0;
DL_req[CC_idP].dl_config_request_body.transmission_power_pcfich = 6000;
HI_DCI0_req[CC_idP].hi_dci0_request_body.sfnsf = subframeP + (frameP<<4);
HI_DCI0_req[CC_idP].hi_dci0_request_body.number_of_dci = 0;
UL_req[CC_idP].ul_config_request_body.number_of_pdus = 0;
UL_req[CC_idP].ul_config_request_body.rach_prach_frequency_resources = 0; // ignored, handled by PHY for now
UL_req[CC_idP].ul_config_request_body.srs_present = 0; // ignored, handled by PHY for now
TX_req[CC_idP].tx_request_body.number_of_pdus = 0;
}
}
void
copy_ulreq(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP)
{
int CC_id;
eNB_MAC_INST *mac = RC.mac[module_idP];
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
nfapi_ul_config_request_t *ul_req_tmp = &mac->UL_req_tmp[CC_id][subframeP];
nfapi_ul_config_request_t *ul_req = &mac->UL_req[CC_id];
nfapi_ul_config_request_pdu_t *ul_req_pdu = ul_req->ul_config_request_body.ul_config_pdu_list;
*ul_req = *ul_req_tmp;
// Restore the pointer
ul_req->ul_config_request_body.ul_config_pdu_list = ul_req_pdu;
ul_req->sfn_sf = (frameP<<4) + subframeP;
ul_req_tmp->ul_config_request_body.number_of_pdus = 0;
if (ul_req->ul_config_request_body.number_of_pdus>0)
{
LOG_D(PHY, "%s() active NOW (frameP:%d subframeP:%d) pdus:%d\n", __FUNCTION__, frameP, subframeP, ul_req->ul_config_request_body.number_of_pdus);
}
memcpy((void*)ul_req->ul_config_request_body.ul_config_pdu_list,
(void*)ul_req_tmp->ul_config_request_body.ul_config_pdu_list,
ul_req->ul_config_request_body.number_of_pdus*sizeof(nfapi_ul_config_request_pdu_t));
}
}
void
eNB_dlsch_ulsch_scheduler(module_id_t module_idP, frame_t frameP,
sub_frame_t subframeP)
{
int mbsfn_status[MAX_NUM_CCs];
protocol_ctxt_t ctxt;
int CC_id, i = -1;
UE_list_t *UE_list = &RC.mac[module_idP]->UE_list;
rnti_t rnti;
COMMON_channels_t *cc = RC.mac[module_idP]->common_channels;
start_meas(&RC.mac[module_idP]->eNB_scheduler);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER,
VCD_FUNCTION_IN);
RC.mac[module_idP]->frame = frameP;
RC.mac[module_idP]->subframe = subframeP;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
mbsfn_status[CC_id] = 0;
// clear vrb_maps
memset(cc[CC_id].vrb_map, 0, 100);
memset(cc[CC_id].vrb_map_UL, 0, 100);
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
cc[CC_id].mcch_active = 0;
#endif
clear_nfapi_information(RC.mac[module_idP], CC_id, frameP, subframeP);
}
// refresh UE list based on UEs dropped by PHY in previous subframe
for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
if (UE_list->active[i] != TRUE)
continue;
rnti = UE_RNTI(module_idP, i);
CC_id = UE_PCCID(module_idP, i);
if (((frameP&127) == 0) && (subframeP == 0)) {
LOG_I(MAC,
"UE rnti %x : %s, PHR %d dB DL CQI %d PUSCH SNR %d PUCCH SNR %d\n",
rnti,
UE_list->UE_sched_ctrl[i].ul_out_of_sync ==
0 ? "in synch" : "out of sync",
UE_list->UE_template[CC_id][i].phr_info,
UE_list->UE_sched_ctrl[i].dl_cqi[CC_id],
(UE_list->UE_sched_ctrl[i].pusch_snr[CC_id] - 128) / 2,
(UE_list->UE_sched_ctrl[i].pucch1_snr[CC_id] - 128) / 2);
}
RC.eNB[module_idP][CC_id]->pusch_stats_bsr[i][(frameP * 10) +
subframeP] = -63;
if (i == UE_list->head)
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME
(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BSR,
RC.eNB[module_idP][CC_id]->
pusch_stats_bsr[i][(frameP * 10) + subframeP]);
// increment this, it is cleared when we receive an sdu
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ul_inactivity_timer++;
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].cqi_req_timer++;
LOG_D(MAC, "UE %d/%x : ul_inactivity %d, cqi_req %d\n", i, rnti,
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].
ul_inactivity_timer,
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].cqi_req_timer);
check_ul_failure(module_idP, CC_id, i, frameP, subframeP);
if (RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ue_reestablishment_reject_timer > 0) {
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ue_reestablishment_reject_timer++;
if(RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ue_reestablishment_reject_timer >=
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ue_reestablishment_reject_timer_thres) {
RC.mac[module_idP]->UE_list.UE_sched_ctrl[i].ue_reestablishment_reject_timer = 0;
for (int ue_id_l = 0; ue_id_l < NUMBER_OF_UE_MAX; ue_id_l++) {
if (reestablish_rnti_map[ue_id_l][0] == rnti) {
// clear currentC-RNTI from map
reestablish_rnti_map[ue_id_l][0] = 0;
reestablish_rnti_map[ue_id_l][1] = 0;
break;
}
}
for (int ii=0; ii<NUMBER_OF_UE_MAX; ii++) {
LTE_eNB_ULSCH_t *ulsch = RC.eNB[module_idP][CC_id]->ulsch[ii];
if((ulsch != NULL) && (ulsch->rnti == rnti)){
LOG_I(MAC, "clean_eNb_ulsch UE %x \n", rnti);
clean_eNb_ulsch(ulsch);
}
}
for (int ii=0; ii<NUMBER_OF_UE_MAX; ii++) {
LTE_eNB_DLSCH_t *dlsch = RC.eNB[module_idP][CC_id]->dlsch[ii][0];
if((dlsch != NULL) && (dlsch->rnti == rnti)){
LOG_I(MAC, "clean_eNb_dlsch UE %x \n", rnti);
clean_eNb_dlsch(dlsch);
}
}
for(int j = 0; j < 10; j++){
nfapi_ul_config_request_body_t *ul_req_tmp = NULL;
ul_req_tmp = &RC.mac[module_idP]->UL_req_tmp[CC_id][j].ul_config_request_body;
if(ul_req_tmp){
int pdu_number = ul_req_tmp->number_of_pdus;
for(int pdu_index = pdu_number-1; pdu_index >= 0; pdu_index--){
if(ul_req_tmp->ul_config_pdu_list[pdu_index].ulsch_pdu.ulsch_pdu_rel8.rnti == rnti){
LOG_I(MAC, "remove UE %x from ul_config_pdu_list %d/%d\n", rnti, pdu_index, pdu_number);
if(pdu_index < pdu_number -1){
memcpy(&ul_req_tmp->ul_config_pdu_list[pdu_index], &ul_req_tmp->ul_config_pdu_list[pdu_index+1], (pdu_number-1-pdu_index) * sizeof(nfapi_ul_config_request_pdu_t));
}
ul_req_tmp->number_of_pdus--;
}
}
}
}
rrc_mac_remove_ue(module_idP,rnti);
}
}
}
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, ENB_FLAG_YES,
NOT_A_RNTI, frameP, subframeP,
module_idP);
pdcp_run(&ctxt);
rrc_rx_tx(&ctxt, CC_id);
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
if (cc[CC_id].MBMS_flag > 0) {
start_meas(&RC.mac[module_idP]->schedule_mch);
mbsfn_status[CC_id] = schedule_MBMS(module_idP, CC_id, frameP, subframeP);
stop_meas(&RC.mac[module_idP]->schedule_mch);
}
}
#endif
// This schedules MIB
if ((subframeP == 0) && (frameP & 3) == 0)
schedule_mib(module_idP, frameP, subframeP);
if (phy_test == 0){
// This schedules SI for legacy LTE and eMTC starting in subframeP
schedule_SI(module_idP, frameP, subframeP);
// This schedules Paging in subframeP
schedule_PCH(module_idP,frameP,subframeP);
// This schedules Random-Access for legacy LTE and eMTC starting in subframeP
schedule_RA(module_idP, frameP, subframeP);
// copy previously scheduled UL resources (ULSCH + HARQ)
copy_ulreq(module_idP, frameP, subframeP);
// This schedules SRS in subframeP
schedule_SRS(module_idP, frameP, subframeP);
// This schedules ULSCH in subframeP (dci0)
schedule_ulsch(module_idP, frameP, subframeP);
// This schedules UCI_SR in subframeP
schedule_SR(module_idP, frameP, subframeP);
// This schedules UCI_CSI in subframeP
schedule_CSI(module_idP, frameP, subframeP);
// This schedules DLSCH in subframeP
schedule_dlsch(module_idP, frameP, subframeP, mbsfn_status);
}
else{
schedule_ulsch_phy_test(module_idP,frameP,subframeP);
schedule_ue_spec_phy_test(module_idP,frameP,subframeP,mbsfn_status);
}
if (RC.flexran[module_idP]->enabled)
flexran_agent_send_update_stats(module_idP);
// Allocate CCEs for good after scheduling is done
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++)
allocate_CCEs(module_idP, CC_id, subframeP, 0);
stop_meas(&RC.mac[module_idP]->eNB_scheduler);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER,
VCD_FUNCTION_OUT);
}
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