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openairinterface5g/openair2/ENB_APP/enb_agent_mac.c
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
/*! \file
* \brief
* \author
* \date 2016
* \version 0.1
*/
#include "enb_agent_mac.h"
#include "enb_agent_common.h"
#include "LAYER2/MAC/extern.h"
#include "LAYER2/RLC/rlc.h"
#include "log.h"
int enb_agent_mac_reply(uint32_t xid, Protocol__ProgranMessage **msg){
void *buffer;
int size;
err_code_t err_code;
// test code
// Create and serialize a stats reply message. This would be done by one of the agents
// Let's assume that we want the power headroom, the pending CEs for UEs 1 & 2 and their
// DL CQI reports as well as the noise and interference for cell 1
report_config_t report_config;
// We set the flags indicating what kind of stats we need for each UE. Both UEs will have
// the same flags in this example
uint32_t ue_flags = 0;
// Set the power headroom flag
ue_flags |= PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PRH;
// Set the pending CEs flag
ue_flags |= PROTOCOL__PRP_UE_STATS_TYPE__PRUST_MAC_CE_BS;
// Set the DL CQI report flag
ue_flags |= PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI;
// We do the same with the Cell flags
uint32_t c_flags = 0;
// Set the noise and interference flag
c_flags |= PROTOCOL__PRP_CELL_STATS_TYPE__PRCST_NOISE_INTERFERENCE;
// We create the appropriate configurations
ue_report_type_t ue_configs[2];
cc_report_type_t cell_configs[1];
// Create the config for UE with RNTI 1
ue_report_type_t ue1_config;
ue1_config.ue_rnti = 1;
ue1_config.ue_report_flags = ue_flags;
// Do the same for UE with RNTI 2
ue_report_type_t ue2_config;
ue2_config.ue_rnti = 2;
ue2_config.ue_report_flags = ue_flags;
// Add them to the UE list
ue_configs[0] = ue1_config;
ue_configs[1] = ue2_config;
// Do the same for cell with id 1
cc_report_type_t c1_config;
c1_config.cc_id = 1;
c1_config.cc_report_flags = c_flags;
// Add them to the cell list
cell_configs[0] = c1_config;
//Create the full report configuration
report_config.nr_ue = 2;
report_config.nr_cc = 1;
report_config.ue_report_type = ue_configs;
report_config.cc_report_type = cell_configs;
if (enb_agent_mac_stats_reply(xid, &report_config, msg) < 0 ){
err_code = PROTOCOL__PROGRAN_ERR__MSG_BUILD;
goto error;
}
return 0;
error :
LOG_E(ENB_APP, "errno %d occured\n", err_code);
return err_code;
}
int enb_agent_mac_stats_reply(uint32_t xid,
const report_config_t *report_config,
Protocol__ProgranMessage **msg) {
Protocol__PrpHeader *header;
int i, j, k;
int cc_id = 0;
int enb_id = 0;
eNB_MAC_INST *eNB = &eNB_mac_inst[enb_id];
UE_list_t *eNB_UE_list= &eNB->UE_list;
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_STATS_REPLY, &header) != 0)
goto error;
Protocol__PrpStatsReply *stats_reply_msg;
stats_reply_msg = malloc(sizeof(Protocol__PrpStatsReply));
if (stats_reply_msg == NULL)
goto error;
protocol__prp_stats_reply__init(stats_reply_msg);
stats_reply_msg->header = header;
stats_reply_msg->n_ue_report = report_config->nr_ue;
stats_reply_msg->n_cell_report = report_config->nr_cc;
Protocol__PrpUeStatsReport **ue_report;
Protocol__PrpCellStatsReport **cell_report;
/* Allocate memory for list of UE reports */
if (report_config->nr_ue > 0) {
ue_report = malloc(sizeof(Protocol__PrpUeStatsReport *) * report_config->nr_ue);
if (ue_report == NULL)
goto error;
for (i = 0; i < report_config->nr_ue; i++) {
ue_report[i] = malloc(sizeof(Protocol__PrpUeStatsReport));
protocol__prp_ue_stats_report__init(ue_report[i]);
ue_report[i]->rnti = report_config->ue_report_type[i].ue_rnti;
ue_report[i]->has_rnti = 1;
ue_report[i]->flags = report_config->ue_report_type[i].ue_report_flags;
ue_report[i]->has_flags = 1;
/* Check the types of reports that need to be constructed based on flag values */
/* Check flag for creation of buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_BSR) {
//TODO: Create a report for each LCG (4 elements). See prp_ue_stats_report of
// progRAN specifications for more details
ue_report[i]->n_bsr = 4;
uint32_t *elem;
elem = (uint32_t *) malloc(sizeof(uint32_t)*ue_report[i]->n_bsr);
if (elem == NULL)
goto error;
for (j = 0; j++; j < ue_report[i]->n_bsr) {
// Set the actual BSR for LCG j of the current UE
// NN: we need to know the cc_id here, consider the first one
elem[j] = eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].bsr_info[j];
}
ue_report[i]->bsr = elem;
}
/* Check flag for creation of PRH report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PRH) {
// TODO: Fill in the actual power headroom value for the RNTI
ue_report[i]->phr = eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].phr_info;
ue_report[i]->has_phr = 1;
}
/* Check flag for creation of RLC buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_RLC_BS) {
// TODO: Fill in the actual RLC buffer status reports
ue_report[i]->n_rlc_report = 1; // Set this to the number of LCs for this UE
Protocol__PrpRlcBsr ** rlc_reports;
rlc_reports = malloc(sizeof(Protocol__PrpRlcBsr) * ue_report[i]->n_rlc_report);
if (rlc_reports == NULL)
goto error;
// Fill the buffer status report for each logical channel of the UE
// NN: see LAYER2/openair2_proc.c for rlc status
for (j = 0; j < ue_report[i]->n_rlc_report; j++) {
rlc_reports[j] = malloc(sizeof(Protocol__PrpRlcBsr));
if (rlc_reports[j] == NULL)
goto error;
protocol__prp_rlc_bsr__init(rlc_reports[j]);
//TODO:Set logical channel id
rlc_reports[j]->lc_id = 1;
rlc_reports[j]->has_lc_id = 1;
//TODO:Set tx queue size in bytes
rlc_reports[j]->tx_queue_size = 10;
rlc_reports[j]->has_tx_queue_size = 1;
//TODO:Set tx queue head of line delay in ms
rlc_reports[j]->tx_queue_hol_delay = 100;
rlc_reports[j]->has_tx_queue_hol_delay = 1;
//TODO:Set retransmission queue size in bytes
rlc_reports[j]->retransmission_queue_size = 10;
rlc_reports[j]->has_retransmission_queue_size = 1;
//TODO:Set retransmission queue head of line delay in ms
rlc_reports[j]->retransmission_queue_hol_delay = 100;
rlc_reports[j]->has_retransmission_queue_hol_delay = 1;
//TODO:Set current size of the pending message in bytes
rlc_reports[j]->status_pdu_size = 100;
rlc_reports[j]->has_status_pdu_size = 1;
}
// Add RLC buffer status reports to the full report
if (ue_report[i]->n_rlc_report > 0)
ue_report[i]->rlc_report = rlc_reports;
}
/* Check flag for creation of MAC CE buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_MAC_CE_BS) {
// TODO: Fill in the actual MAC CE buffer status report
ue_report[i]->pending_mac_ces = -1; /* Use as bitmap. Set one or more of the
PROTOCOL__PRP_CE_TYPE__PRPCET_ values
found in stats_common.pb-c.h. See
prp_ce_type in progRAN specification */
ue_report[i]->has_pending_mac_ces = 1;
}
/* Check flag for creation of DL CQI report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
// TODO: Fill in the actual DL CQI report for the UE based on its configuration
Protocol__PrpDlCqiReport * dl_report;
dl_report = malloc(sizeof(Protocol__PrpDlCqiReport));
if (dl_report == NULL)
goto error;
protocol__prp_dl_cqi_report__init(dl_report);
//TODO:Set the SFN and SF of the last report held in the agent.
dl_report->sfn_sn = eNB->frame*10 + eNB->subframe;
dl_report->has_sfn_sn = 1;
//TODO:Set the number of DL CQI reports for this UE. One for each CC
dl_report->n_csi_report = 1;
//TODO:Create the actual CSI reports.
Protocol__PrpDlCsi **csi_reports;
csi_reports = malloc(sizeof(Protocol__PrpDlCsi *));
if (csi_reports == NULL)
goto error;
for (j = 0; j < dl_report->n_csi_report; j++) {
csi_reports[j] = malloc(sizeof(Protocol__PrpDlCsi));
if (csi_reports[j] == NULL)
goto error;
protocol__prp_dl_csi__init(csi_reports[j]);
//TODO: the servCellIndex for this report
csi_reports[j]->serv_cell_index = 0;
csi_reports[j]->has_serv_cell_index = 1;
//TODO: the rank indicator value for this cc
csi_reports[j]->ri = 1;
csi_reports[j]->has_ri = 1;
//TODO: the type of CSI report based on the configuration of the UE
//For this example we use type P10, which only needs a wideband value
//The full set of types can be found in stats_common.pb-c.h and
//in the progRAN specifications
csi_reports[j]->type = PROTOCOL__PRP_CSI_TYPE__PRCSIT_P10;
csi_reports[j]->has_type = 1;
csi_reports[j]->report_case = PROTOCOL__PRP_DL_CSI__REPORT_P10CSI;
Protocol__PrpCsiP10 *csi10;
csi10 = malloc(sizeof(Protocol__PrpCsiP10));
if (csi10 == NULL)
goto error;
protocol__prp_csi_p10__init(csi10);
//TODO: set the wideband value
// NN: this is also depends on cc_id
csi10->wb_cqi = eNB_UE_list->eNB_UE_stats[UE_PCCID(enb_id,i)][i].dl_cqi;
csi10->has_wb_cqi = 1;
//Add the type of measurements to the csi report in the proper union type
csi_reports[j]->p10csi = csi10;
}
//Add the csi reports to the full DL CQI report
dl_report->csi_report = csi_reports;
//Add the DL CQI report to the stats report
ue_report[i]->dl_cqi_report = dl_report;
}
/* Check flag for creation of paging buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
//TODO: Fill in the actual paging buffer status report. For this field to be valid, the RNTI
//set in the report must be a P-RNTI
Protocol__PrpPagingBufferReport *paging_report;
paging_report = malloc(sizeof(Protocol__PrpPagingBufferReport));
if (paging_report == NULL)
goto error;
protocol__prp_paging_buffer_report__init(paging_report);
//Set the number of pending paging messages
paging_report->n_paging_info = 1;
//Provide a report for each pending paging message
Protocol__PrpPagingInfo **p_info;
p_info = malloc(sizeof(Protocol__PrpPagingInfo *));
if (p_info == NULL)
goto error;
for (j = 0; j < paging_report->n_paging_info; j++) {
p_info[j] = malloc(sizeof(Protocol__PrpPagingInfo));
if(p_info[j] == NULL)
goto error;
protocol__prp_paging_info__init(p_info[j]);
//TODO: Set paging index. This index is the same that will be used for the scheduling of the
//paging message by the controller
p_info[j]->paging_index = 10;
p_info[j]->has_paging_index = 1;
//TODO:Set the paging message size
p_info[j]->paging_message_size = 100;
p_info[j]->has_paging_message_size = 1;
//TODO: Set the paging subframe
p_info[j]->paging_subframe = 10;
p_info[j]->has_paging_subframe = 1;
//TODO: Set the carrier index for the pending paging message
p_info[j]->carrier_index = 0;
p_info[j]->has_carrier_index = 1;
}
//Add all paging info to the paging buffer rerport
paging_report->paging_info = p_info;
//Add the paging report to the UE report
ue_report[i]->pbr = paging_report;
}
/* Check flag for creation of UL CQI report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
//Fill in the full UL CQI report of the UE
Protocol__PrpUlCqiReport *full_ul_report;
full_ul_report = malloc(sizeof(Protocol__PrpUlCqiReport));
if(full_ul_report == NULL)
goto error;
protocol__prp_ul_cqi_report__init(full_ul_report);
//TODO:Set the SFN and SF of the generated report
full_ul_report->sfn_sn = 100;
full_ul_report->has_sfn_sn = 1;
//TODO:Set the number of UL measurement reports based on the types of measurements
//configured for this UE and on the servCellIndex
full_ul_report->n_cqi_meas = 1;
Protocol__PrpUlCqi **ul_report;
ul_report = malloc(sizeof(Protocol__PrpUlCqi *) * full_ul_report->n_cqi_meas);
if(ul_report == NULL)
goto error;
//Fill each UL report of the UE for each of the configured report types
for(j = 0; j++; j < full_ul_report->n_cqi_meas) {
ul_report[j] = malloc(sizeof(Protocol__PrpUlCqi));
if(ul_report[j] == NULL)
goto error;
protocol__prp_ul_cqi__init(ul_report[j]);
//TODO: Set the type of the UL report. As an example set it to SRS UL report
// See enum prp_ul_cqi_type in progRAN specification for more details
ul_report[j]->type = PROTOCOL__PRP_UL_CQI_TYPE__PRUCT_SRS;
ul_report[j]->has_type = 1;
//TODO:Set the number of SINR measurements based on the report type
//See struct prp_ul_cqi in progRAN specification for more details
ul_report[j]->n_sinr = 100;
uint32_t *sinr_meas;
sinr_meas = (uint32_t *) malloc(sizeof(uint32_t) * ul_report[j]->n_sinr);
if (sinr_meas == NULL)
goto error;
//TODO:Set the SINR measurements for the specified type
for (k = 0; k < ul_report[j]->n_sinr; k++) {
sinr_meas[k] = 10;
}
ul_report[j]->sinr = sinr_meas;
//TODO: Set the servCellIndex for this report
ul_report[j]->serv_cell_index = 0;
ul_report[j]->has_serv_cell_index = 1;
//Set the list of UL reports of this UE to the full UL report
full_ul_report->cqi_meas = ul_report;
//Add full UL CQI report to the UE report
ue_report[i]->ul_cqi_report = full_ul_report;
}
}
}
/* Add list of all UE reports to the message */
stats_reply_msg->ue_report = ue_report;
}
/* Allocate memory for list of cell reports */
if (report_config->nr_cc > 0) {
cell_report = malloc(sizeof(Protocol__PrpCellStatsReport *) * report_config->nr_cc);
if (cell_report == NULL)
goto error;
// Fill in the Cell reports
for (i = 0; i < report_config->nr_cc; i++) {
cell_report[i] = malloc(sizeof(Protocol__PrpCellStatsReport));
if(ue_report[i] == NULL)
goto error;
protocol__prp_cell_stats_report__init(cell_report[i]);
cell_report[i]->carrier_index = report_config->cc_report_type[i].cc_id;
cell_report[i]->has_carrier_index = 1;
cell_report[i]->flags = report_config->cc_report_type[i].cc_report_flags;
cell_report[i]->has_flags = 1;
/* Check flag for creation of noise and interference report */
if(report_config->cc_report_type[i].cc_report_flags & PROTOCOL__PRP_CELL_STATS_TYPE__PRCST_NOISE_INTERFERENCE) {
// TODO: Fill in the actual noise and interference report for this cell
Protocol__PrpNoiseInterferenceReport *ni_report;
ni_report = malloc(sizeof(Protocol__PrpNoiseInterferenceReport));
if(ni_report == NULL)
goto error;
protocol__prp_noise_interference_report__init(ni_report);
// Current frame and subframe number
ni_report->sfn_sf = 0;
ni_report->has_sfn_sf = 1;
// Received interference power in dbm
ni_report->rip = 0;
ni_report->has_rip = 1;
// Thermal noise power in dbm
ni_report->tnp = 0;
ni_report->has_tnp = 1;
cell_report[i]->noise_inter_report = ni_report;
}
}
/* Add list of all cell reports to the message */
stats_reply_msg->cell_report = cell_report;
}
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__SUCCESSFUL_OUTCOME;
(*msg)->stats_reply_msg = stats_reply_msg;
return 0;
error:
// TODO: Need to make proper error handling
if (header != NULL)
free(header);
if (stats_reply_msg != NULL)
free(stats_reply_msg);
if(*msg != NULL)
free(*msg);
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_destroy_stats_reply(Protocol__ProgranMessage *msg) {
//TODO: Need to deallocate memory for the stats reply message
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG)
goto error;
free(msg->stats_reply_msg->header);
int i, j, k;
Protocol__PrpStatsReply *reply = msg->stats_reply_msg;
Protocol__PrpDlCqiReport *dl_report;
Protocol__PrpUlCqiReport *ul_report;
Protocol__PrpPagingBufferReport *paging_report;
// Free the memory for the UE reports
for (i = 0; i < reply->n_ue_report; i++) {
free(reply->ue_report[i]->bsr);
for (j = 0; j < reply->ue_report[i]->n_rlc_report; j++) {
free(reply->ue_report[i]->rlc_report[j]);
}
free(reply->ue_report[i]->rlc_report);
// If DL CQI report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
dl_report = reply->ue_report[i]->dl_cqi_report;
// Delete all CSI reports
for (j = 0; j < dl_report->n_csi_report; j++) {
//Must free memory based on the type of report
switch(dl_report->csi_report[j]->report_case) {
case PROTOCOL__PRP_DL_CSI__REPORT_P10CSI:
free(dl_report->csi_report[j]->p10csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P11CSI:
free(dl_report->csi_report[j]->p11csi->wb_cqi);
free(dl_report->csi_report[j]->p11csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P20CSI:
free(dl_report->csi_report[j]->p20csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P21CSI:
free(dl_report->csi_report[j]->p21csi->wb_cqi);
free(dl_report->csi_report[j]->p21csi->sb_cqi);
free(dl_report->csi_report[j]->p21csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A12CSI:
free(dl_report->csi_report[j]->a12csi->wb_cqi);
free(dl_report->csi_report[j]->a12csi->sb_pmi);
free(dl_report->csi_report[j]->a12csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A22CSI:
free(dl_report->csi_report[j]->a22csi->wb_cqi);
free(dl_report->csi_report[j]->a22csi->sb_cqi);
free(dl_report->csi_report[j]->a22csi->sb_list);
free(dl_report->csi_report[j]->a22csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A20CSI:
free(dl_report->csi_report[j]->a20csi->sb_list);
free(dl_report->csi_report[j]->a20csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A30CSI:
free(dl_report->csi_report[j]->a30csi->sb_cqi);
free(dl_report->csi_report[j]->a30csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A31CSI:
free(dl_report->csi_report[j]->a31csi->wb_cqi);
for (k = 0; k < dl_report->csi_report[j]->a31csi->n_sb_cqi; k++) {
free(dl_report->csi_report[j]->a31csi->sb_cqi[k]);
}
free(dl_report->csi_report[j]->a31csi->sb_cqi);
break;
}
free(dl_report->csi_report[j]);
}
free(dl_report->csi_report);
free(dl_report);
}
// If Paging buffer report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
paging_report = reply->ue_report[i]->pbr;
// Delete all paging buffer reports
for (j = 0; j < paging_report->n_paging_info; j++) {
free(paging_report->paging_info[j]);
}
free(paging_report->paging_info);
free(paging_report);
}
// If UL CQI report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
ul_report = reply->ue_report[i]->ul_cqi_report;
for (j = 0; j < ul_report->n_cqi_meas; j++) {
free(ul_report->cqi_meas[j]->sinr);
free(ul_report->cqi_meas[j]);
}
free(ul_report->cqi_meas);
}
free(reply->ue_report[i]);
}
free(reply->ue_report);
// Free memory for all Cell reports
for (i = 0; i < reply->n_cell_report; i++) {
free(reply->cell_report[i]->noise_inter_report);
free(reply->cell_report[i]);
}
free(reply->cell_report);
free(reply);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
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