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openairinterface5g/openair1/PHY/LTE_TRANSPORT/pmch_common.c
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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
*/
#include "PHY/defs_eNB.h"
#include "PHY/phy_extern.h"
/*! \file PHY/LTE_TRANSPORT/pmch_common.c
* \brief This includes routines for decoding the UE FeMBMS/PMCH physical/multicast/transport channel 3GPP TS 36.211 version 14.2.0 Release 14 Sections 6.5/6.10.2
* \author J. Morgade
* \date 2019
* \version 0.1
* \company Vicomtech
* \email: javier.morgade@ieee.org
* \note
* \warning
*/
int is_fembms_cas_subframe(uint32_t frame, int subframe, LTE_DL_FRAME_PARMS *frame_parms) {
//uint32_t period;
//if(frame_parms->NonMBSFN_config_flag ) {
// period = 4<<frame_parms->NonMBSFN_config.radioframeAllocationPeriod;
// if ((frame % period) == frame_parms->NonMBSFN_config.radioframeAllocationOffset) {
// switch (subframe) {
// case 0:
// return(1); //This should be CAS
// break;
// }
// }
//}
if(frame_parms->NonMBSFN_config_flag || frame_parms->FeMBMS_active){
if ((frame&3)==0) {
switch (subframe) {
case 0:
return(1); //This should be CAS
break;
}
}
}
return (0);
}
int is_fembms_nonMBSFN_subframe(uint32_t frame, int subframe, LTE_DL_FRAME_PARMS *frame_parms){
uint32_t period;
if(frame_parms->NonMBSFN_config_flag ) {
period = 4<<frame_parms->NonMBSFN_config.radioframeAllocationPeriod;
if ((frame % period) == frame_parms->NonMBSFN_config.radioframeAllocationOffset) {
switch (subframe) {
case 0:
return(1); //This should be CAS
break;
case 1:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x100) > 0)
return(1);
break;
case 2:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x80) > 0)
return(1);
break;
case 3:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x40) > 0)
return(1);
break;
case 4:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x20) > 0)
return(1);
break;
case 5:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x10) > 0)
return(1);
break;
case 6:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x8) > 0)
return(1);
break;
case 7:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x4) > 0)
return(1);
break;
case 8:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x2) > 0)
return(1);
break;
case 9:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x1) > 0)
return(1);
break;
}
}
}
return (0);
}
int is_fembms_pmch_subframe(uint32_t frame, int subframe, LTE_DL_FRAME_PARMS *frame_parms) {
uint32_t period;
if(frame_parms->NonMBSFN_config_flag ) {
period = 4<<frame_parms->NonMBSFN_config.radioframeAllocationPeriod;
if ((frame % period) == frame_parms->NonMBSFN_config.radioframeAllocationOffset) {
switch (subframe) {
case 0:
return(0);
break;
case 1:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x100) > 0)
return(0);
break;
case 2:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x80) > 0)
return(0);
break;
case 3:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x40) > 0)
return(0);
break;
case 4:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x20) > 0)
return(0);
break;
case 5:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x10) > 0)
return(0);
break;
case 6:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x8) > 0)
return(0);
break;
case 7:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x4) > 0)
return(0);
break;
case 8:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x2) > 0)
return(0);
break;
case 9:
if ((frame_parms->NonMBSFN_config.non_mbsfn_SubframeConfig & 0x1) > 0)
return(0);
break;
}
} else if((frame_parms->FeMBMS_active == 1 || frame_parms->NonMBSFN_config_flag == 1 ) && !is_fembms_cas_subframe(frame,subframe,frame_parms) ) { //Then regular MBSFN FeMBMS subframe
return(1);
}
return(1);
}
return(0);
}
int is_pmch_subframe(uint32_t frame, int subframe, LTE_DL_FRAME_PARMS *frame_parms) {
uint32_t period;
uint8_t i;
uint8_t j;
// LOG_D(PHY,"is_pmch_subframe: frame %d, subframe %d, num_MBSFN_config %d\n",
// frame,subframe,frame_parms->num_MBSFN_config);
for (i=0; i<frame_parms->num_MBSFN_config; i++) { // we have at least one MBSFN configuration
period = 1<<frame_parms->MBSFN_config[i].radioframeAllocationPeriod;
if (frame_parms->MBSFN_config[i].fourFrames_flag == 0) {
if ((frame % period) == frame_parms->MBSFN_config[i].radioframeAllocationOffset) {
if (frame_parms->frame_type == FDD) {
switch (subframe) {
case 1:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF1) > 0)
return(1);
break;
case 2:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF2) > 0)
return(1);
break;
case 3:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF3) > 0)
return(1);
break;
case 6:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF6) > 0)
return(1);
break;
case 7:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF7) > 0)
return(1);
break;
case 8:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_FDD_SF8) > 0)
return(1);
break;
}
} else {
switch (subframe) {
case 3:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_TDD_SF3) > 0)
return(1);
break;
case 4:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_TDD_SF4) > 0)
return(1);
break;
case 7:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_TDD_SF7) > 0)
return(1);
break;
case 8:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_TDD_SF8) > 0)
return(1);
break;
case 9:
if ((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig & MBSFN_TDD_SF9) > 0)
return(1);
break;
}
}
}
} else { // handle 4 frames case
for(j=0; j<4; j++) {
if ((frame % period) == (frame_parms->MBSFN_config[i].radioframeAllocationOffset + j)) {
if (frame_parms->frame_type == FDD) {
switch (subframe) {
case 1:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x800000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x800000>>(j*6));
return(1);
}
break;
case 2:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x400000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x400000>>(j*6));
return(1);
}
break;
case 3:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x200000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x200000>>(j*6));
return(1);
}
break;
case 6:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x100000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x100000>>(j*6));
return(1);
}
break;
case 7:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x80000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x80000>>(j*6));
return(1);
}
break;
case 8:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig) & (0x40000>>(j*6))) > 0) {
//LOG_E(PHY,"SubframeConfig<<6(%x),MBSFN_FDD_SF1(%x)\n",frame_parms->MBSFN_config[i].mbsfn_SubframeConfig,0x40000>>(j*6));
return(1);
}
break;
}
} else {
switch (subframe) {
case 3:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig>>j*6) & MBSFN_TDD_SF3) > 0)
return(1);
break;
case 4:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig>>j*6) & MBSFN_TDD_SF4) > 0)
return(1);
break;
case 7:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig>>j*6) & MBSFN_TDD_SF7) > 0)
return(1);
break;
case 8:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig>>j*6) & MBSFN_TDD_SF8) > 0)
return(1);
break;
case 9:
if (((frame_parms->MBSFN_config[i].mbsfn_SubframeConfig>>j*6) & MBSFN_TDD_SF9) > 0)
return(1);
break;
}
}
}
}
}
}
return(0);
}
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