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Stabilization UE BSR feature

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This commit is contained in:
calvin wang
2016-11-11 18:01:39 +08:00
parent 1568b5a167
commit 09f149d86b
7 changed files with 329 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/LAYER2/MAC/config.c
+31 -3
View File
@@ -69,7 +69,10 @@ void ue_mac_reset(module_id_t module_idP,uint8_t eNB_index)
// cancel all pending SRs
UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR]=0;
UE_mac_inst[module_idP].retxBSRTimer_expires_flag = 0;
// stop ongoing RACH procedure
// discard explicitly signaled ra_PreambleIndex and ra_RACH_MaskIndex, if any
@@ -228,10 +231,34 @@ rrc_mac_config_req(
UE_mac_inst[Mod_idP].scheduling_info.sr_ProhibitTimer = (uint16_t) 0;
}
if (mac_MainConfig->ext2 && mac_MainConfig->ext2->mac_MainConfig_v1020) {
if (mac_MainConfig->ext2->mac_MainConfig_v1020->extendedBSR_Sizes_r10) {
UE_mac_inst[Mod_idP].scheduling_info.extendedBSR_Sizes_r10 = (uint16_t) *mac_MainConfig->ext2->mac_MainConfig_v1020->extendedBSR_Sizes_r10;
} else {
UE_mac_inst[Mod_idP].scheduling_info.extendedBSR_Sizes_r10 = (uint16_t)0;
}
if (mac_MainConfig->ext2->mac_MainConfig_v1020->extendedPHR_r10) {
UE_mac_inst[Mod_idP].scheduling_info.extendedPHR_r10 = (uint16_t) *mac_MainConfig->ext2->mac_MainConfig_v1020->extendedPHR_r10;
} else {
UE_mac_inst[Mod_idP].scheduling_info.extendedPHR_r10 = (uint16_t)0;
}
} else {
UE_mac_inst[Mod_idP].scheduling_info.extendedBSR_Sizes_r10 = (uint16_t)0;
UE_mac_inst[Mod_idP].scheduling_info.extendedPHR_r10 = (uint16_t)0;
}
#endif
UE_mac_inst[Mod_idP].scheduling_info.periodicBSR_SF = get_sf_periodicBSRTimer(UE_mac_inst[Mod_idP].scheduling_info.periodicBSR_Timer);
UE_mac_inst[Mod_idP].scheduling_info.retxBSR_SF = get_sf_retxBSRTimer(UE_mac_inst[Mod_idP].scheduling_info.retxBSR_Timer);
UE_mac_inst[Mod_idP].scheduling_info.periodicBSR_SF = 0xFFFF;
UE_mac_inst[Mod_idP].scheduling_info.retxBSR_SF = 0xFFFF;
UE_mac_inst[Mod_idP].BSR_reporting_active[REGULAR_BSR]=0;
UE_mac_inst[Mod_idP].BSR_reporting_active[PADDING_BSR]=0;
UE_mac_inst[Mod_idP].BSR_reporting_active[PERIODIC_BSR]=0;
UE_mac_inst[Mod_idP].retxBSRTimer_expires_flag = 0;
LOG_D(MAC,"[UE %d]: periodic BSR %d (SF), retx BSR %d (SF)\n",
Mod_idP,
UE_mac_inst[Mod_idP].scheduling_info.periodicBSR_SF,
UE_mac_inst[Mod_idP].scheduling_info.retxBSR_SF);
UE_mac_inst[Mod_idP].scheduling_info.drx_config = mac_MainConfig->drx_Config;
UE_mac_inst[Mod_idP].scheduling_info.phr_config = mac_MainConfig->phr_Config;
@@ -252,6 +279,7 @@ rrc_mac_config_req(
UE_mac_inst[Mod_idP].scheduling_info.periodicPHR_SF = get_sf_perioidicPHR_Timer(UE_mac_inst[Mod_idP].scheduling_info.periodicPHR_Timer);
UE_mac_inst[Mod_idP].scheduling_info.prohibitPHR_SF = get_sf_prohibitPHR_Timer(UE_mac_inst[Mod_idP].scheduling_info.prohibitPHR_Timer);
UE_mac_inst[Mod_idP].scheduling_info.PathlossChange_db = get_db_dl_PathlossChange(UE_mac_inst[Mod_idP].scheduling_info.PathlossChange);
UE_mac_inst[Mod_idP].PHR_reporting_active = 0;
LOG_D(MAC,"[UE %d] config PHR (%d): periodic %d (SF) prohibit %d (SF) pathlosschange %d (db) \n",
Mod_idP,
(mac_MainConfig->phr_Config)?mac_MainConfig->phr_Config->present:-1,
openair2/LAYER2/MAC/defs.h
+24 -3
View File
@@ -336,6 +336,14 @@ typedef struct {
#define SHORT_BSR 29
/*!\brief LCID of long BSR for ULSCH */
#define LONG_BSR 30
/*!\brief first level bsr type for ULSCH: Regular BSR,Padding BSR,Periodic BSR*/
#define BSR_TYPE_FIRST_LEVEL 3
/*!\brief first level bsr type states*/
typedef enum {
REGULAR_BSR =0,
PADDING_BSR,
PERIODIC_BSR
} UE_FIRST_LEVEL_BSR_TYPE;
/*! \brief Downlink SCH PDU Structure */
typedef struct {
@@ -945,8 +953,10 @@ typedef enum {
typedef struct {
/// buffer status for each lcgid
uint8_t BSR[MAX_NUM_LCGID]; // should be more for mesh topology
/// keep the number of bytes in rlc buffer for each lcid
/// keep the number of bytes in rlc buffer for each lcgid
uint16_t BSR_bytes[MAX_NUM_LCGID];
/// after multiplexing buffer remain for each lcid
uint16_t LCID_buffer_remain[MAX_NUM_LCID];
/// buffer status for each lcid
uint8_t LCID_status[MAX_NUM_LCID];
/// SR pending as defined in 36.321
@@ -958,11 +968,11 @@ typedef struct {
/// retxBSR-Timer, default value is sf2560
uint16_t retxBSR_Timer;
/// retxBSR_SF, number of subframe before triggering a regular BSR
int16_t retxBSR_SF;
int16_t retxBSR_SF; // if value equal oxFFFF means counters are NOT active
/// periodicBSR-Timer, default to infinity
uint16_t periodicBSR_Timer;
/// periodicBSR_SF, number of subframe before triggering a periodic BSR
int16_t periodicBSR_SF;
int16_t periodicBSR_SF; // if value equal oxFFFF means counters are NOT active
/// default value is 0: not configured
uint16_t sr_ProhibitTimer;
/// sr ProhibitTime running
@@ -987,6 +997,12 @@ typedef struct {
int16_t prohibitPHR_SF;
///DL Pathloss Change in db
uint16_t PathlossChange_db;
/// default value is false
uint16_t extendedBSR_Sizes_r10;
/// default value is false
uint16_t extendedPHR_r10;
//Bj bucket usage per lcid
int16_t Bj[MAX_NUM_LCID];
// Bucket size per lcid
@@ -1074,6 +1090,11 @@ typedef struct {
uint8_t PHR_reporting_active;
/// power backoff due to power management (as allowed by P-MPRc) for this cell
uint8_t power_backoff_db[NUMBER_OF_eNB_MAX];
/// BSR report falg management
uint8_t BSR_reporting_active[BSR_TYPE_FIRST_LEVEL];
/// retxBSR-Timer expires flag
uint8_t retxBSRTimer_expires_flag;
/// MBSFN_Subframe Configuration
struct MBSFN_SubframeConfig *mbsfn_SubframeConfig[8]; // FIXME replace 8 by MAX_MBSFN_AREA?
/// number of subframe allocation pattern available for MBSFN sync area
openair2/LAYER2/MAC/extern.h
+2
View File
@@ -46,6 +46,8 @@
extern const uint32_t BSR_TABLE[BSR_TABLE_SIZE];
//extern uint32_t EBSR_Level[63];
extern const uint32_t Extended_BSR_TABLE[BSR_TABLE_SIZE];
//extern uint32_t Extended_BSR_TABLE[63]; ----currently not used
extern UE_MAC_INST *UE_mac_inst;
extern eNB_MAC_INST *eNB_mac_inst;
openair2/LAYER2/MAC/proto.h
+2 -2
View File
@@ -545,13 +545,13 @@ int cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8
*/
int get_bsr_lcgid (module_id_t module_idP);
/*! \fn uint8_t get_bsr_len (module_id_t module_idP,uint16_t bufflen);
/*! \fn int get_bsr_type (module_id_t module_idP,uint16_t bufflen);
\brief determine whether the bsr is short or long assuming that the MAC pdu is built
\param[in] Mod_id instance of the UE
\param[in] bufflen size of phy transport block
\param[out] bsr_len size of bsr control element
*/
uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen);
int get_bsr_type (module_id_t module_idP, uint8_t eNB_index,frame_t frameP,uint16_t buflen);
/*! \fn BSR_SHORT * get_bsr_short(module_id_t module_idP, uint8_t bsr_len)
\brief get short bsr level
openair2/LAYER2/MAC/ra_procedures.c
+1 -1
View File
@@ -391,7 +391,7 @@ PRACH_RESOURCES_t *ue_get_rach(module_id_t module_idP,int CC_id,frame_t frameP,
1); //post_padding
return(&UE_mac_inst[module_idP].RA_prach_resources);
} else if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DCCH] > 0) {
} else if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[UE_mac_inst[module_idP].scheduling_info.LCGID[DCCH]] > 0) {
// This is for triggering a transmission on DCCH using PRACH (during handover, or sending SR for example)
dcch_header_len = 2 + 2; /// SHORT Subheader + C-RNTI control element
rlc_status = mac_rlc_status_ind(module_idP,UE_mac_inst[module_idP].crnti, eNB_indexP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
openair2/LAYER2/MAC/ue_procedures.c
+260 -81
View File
@@ -102,13 +102,22 @@ void ue_init_mac(module_id_t module_idP)
UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running=0;
UE_mac_inst[module_idP].scheduling_info.maxHARQ_Tx=MAC_MainConfig__ul_SCH_Config__maxHARQ_Tx_n5;
UE_mac_inst[module_idP].scheduling_info.ttiBundling=0;
UE_mac_inst[module_idP].scheduling_info.extendedBSR_Sizes_r10=0;
UE_mac_inst[module_idP].scheduling_info.extendedPHR_r10=0;
UE_mac_inst[module_idP].scheduling_info.drx_config=NULL;
UE_mac_inst[module_idP].scheduling_info.phr_config=NULL;
UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF = get_sf_periodicBSRTimer(UE_mac_inst[module_idP].scheduling_info.periodicBSR_Timer);
UE_mac_inst[module_idP].scheduling_info.retxBSR_SF = get_sf_retxBSRTimer(UE_mac_inst[module_idP].scheduling_info.retxBSR_Timer);
// set init value 0xFFFF, make sure periodic timer and retx time counters are NOT active, after bsr transmission set the value configured by the NW.
UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF = 0xFFFF;
UE_mac_inst[module_idP].scheduling_info.retxBSR_SF = 0xFFFF;
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR]=0;
UE_mac_inst[module_idP].retxBSRTimer_expires_flag = 0;
UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF = get_sf_perioidicPHR_Timer(UE_mac_inst[module_idP].scheduling_info.periodicPHR_Timer);
UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF = get_sf_prohibitPHR_Timer(UE_mac_inst[module_idP].scheduling_info.prohibitPHR_Timer);
UE_mac_inst[module_idP].scheduling_info.PathlossChange_db = get_db_dl_PathlossChange(UE_mac_inst[module_idP].scheduling_info.PathlossChange);
UE_mac_inst[module_idP].PHR_reporting_active = 0;
for (i=0; i < MAX_NUM_LCID; i++) {
LOG_D(MAC,"[UE%d] Applying default logical channel config for LCGID %d\n",module_idP,i);
@@ -121,7 +130,7 @@ void ue_init_mac(module_id_t module_idP)
UE_mac_inst[module_idP].scheduling_info.LCGID[i]=1;
}
UE_mac_inst[module_idP].scheduling_info.LCID_status[i]=0;
UE_mac_inst[module_idP].scheduling_info.LCID_status[i]=LCID_EMPTY;
}
#ifdef CBA
@@ -306,6 +315,14 @@ uint32_t ue_get_SR(module_id_t module_idP,int CC_id,frame_t frameP,uint8_t eNB_i
// initiate RA
UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
// release all pucch resource
UE_mac_inst[module_idP].physicalConfigDedicated = NULL;
UE_mac_inst[module_idP].ul_active=0;
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR]=0;
UE_mac_inst[module_idP].retxBSRTimer_expires_flag = 0;
LOG_T(MAC,"[UE %d] Release all SRs \n", module_idP);
return(0);
}
}
@@ -1230,7 +1247,7 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
mac_rlc_status_resp_t rlc_status;
uint8_t dcch_header_len=0,dcch1_header_len=0,dtch_header_len=0,dtch_header_len_last=0;
uint8_t dcch_header_len_tmp=0, dtch_header_len_tmp=0;
uint8_t bsr_header_len=0, bsr_ce_len=0, bsr_len=0;
uint8_t bsr_len=0;
uint8_t phr_header_len=0, phr_ce_len=0,phr_len=0;
uint8_t lcid=0;
uint16_t sdu_lengths[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
@@ -1238,17 +1255,20 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
uint8_t payload_offset=0,num_sdus=0;
uint8_t ulsch_buff[MAX_ULSCH_PAYLOAD_BYTES];
uint16_t sdu_length_total=0;
BSR_SHORT bsr_short;
BSR_SHORT bsr_short,bsr_truncated;
BSR_LONG bsr_long;
BSR_SHORT *bsr_s=&bsr_short;
BSR_LONG *bsr_l=&bsr_long;
BSR_SHORT *bsr_t=&bsr_truncated;
POWER_HEADROOM_CMD phr;
POWER_HEADROOM_CMD *phr_p=&phr;
unsigned short short_padding=0, post_padding=0;
unsigned short short_padding=0, post_padding=0, padding_len=0;
int lcgid;
int j; // used for padding
// Compute header length
int all_pdu_len;
int bsr_type=0;
if (CC_id>0) {
LOG_E(MAC,"Transmission on secondary CCs is not supported yet\n");
mac_xface->macphy_exit("MAC FATAL CC_id>0");
@@ -1280,10 +1300,9 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
dcch1_header_len=2;//sizeof(SCH_SUBHEADER_SHORT);
// hypo length,in case of long header skip the padding byte
dtch_header_len=(buflen > 128 ) ? 3 : 2 ; //sizeof(SCH_SUBHEADER_LONG)-1 : sizeof(SCH_SUBHEADER_SHORT);
bsr_header_len = 1;//sizeof(SCH_SUBHEADER_FIXED);
phr_header_len = 1;//sizeof(SCH_SUBHEADER_FIXED);
phr_ce_len = (UE_mac_inst[module_idP].PHR_reporting_active == 1) ? 1 /* sizeof(POWER_HEADROOM_CMD)*/: 0;
phr_ce_len = (UE_mac_inst[module_idP].PHR_reporting_active == 1) ? 1 /* sizeof(POWER_HEADROOM_CMD)*/: 0;
if (phr_ce_len > 0) {
phr_len = phr_ce_len + phr_header_len;
LOG_D(MAC,"[UE %d] header size info: PHR len %d (ce%d,hdr%d) buff_len %d\n",
@@ -1292,19 +1311,21 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
phr_len=0;
}
bsr_ce_len = get_bsr_len (module_idP, buflen-phr_len);
if (bsr_ce_len > 0 ) {
bsr_len = bsr_ce_len + bsr_header_len;
LOG_D(MAC,"[UE %d] header size info: dcch %d, dcch1 %d, dtch %d, bsr (ce%d,hdr%d) buff_len %d\n",
module_idP, dcch_header_len,dcch1_header_len,dtch_header_len, bsr_ce_len, bsr_header_len, buflen);
bsr_type = get_bsr_type(module_idP, eNB_index, frameP, buflen-phr_len);
if (bsr_type == LONG_BSR) {
bsr_len = sizeof(SCH_SUBHEADER_FIXED)+sizeof(BSR_LONG);;
LOG_D(MAC,"[UE %d] header size info: dcch %d, dcch1 %d, dtch %d, bsr (bsr_type%d) buff_len %d\n",
module_idP, dcch_header_len,dcch1_header_len,dtch_header_len, bsr_type, buflen);
} else if ((bsr_type == SHORT_BSR) || (bsr_type == TRUNCATED_BSR)) {
bsr_len = sizeof(SCH_SUBHEADER_FIXED)+sizeof(BSR_SHORT);;
LOG_D(MAC,"[UE %d] header size info: dcch %d, dcch1 %d, dtch %d, bsr (bsr_type%d) buff_len %d\n",
module_idP, dcch_header_len,dcch1_header_len,dtch_header_len, bsr_type, buflen);
} else {
bsr_len=0;
//LOG_D(MAC,"[UE %d] Empty buffers, send a long BSR to reset the bsr at eNB \n ",Mod_id);
// bsr_ce_len = sizeof(BSR_LONG);
//bsr_len = bsr_ce_len + bsr_header_len;
}
// check for UL bandwidth requests and add SR control element
// check for UL bandwidth requests and add SR control element
@@ -1338,8 +1359,14 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
sdu_lcids[0] = DCCH;
LOG_D(MAC,"[UE %d] TX Got %d bytes for DCCH\n",module_idP,sdu_lengths[0]);
num_sdus = 1;
update_bsr(module_idP, frameP, eNB_index, DCCH, UE_mac_inst[module_idP].scheduling_info.LCGID[DCCH]);
//update_bsr(module_idP, frameP, eNB_index, DCCH, UE_mac_inst[module_idP].scheduling_info.LCGID[DCCH]);
//header_len +=2;
UE_mac_inst[module_idP].scheduling_info.LCID_status[DCCH] = LCID_EMPTY;
if (rlc_status.bytes_in_buffer > sdu_lengths[0]) {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[DCCH] = rlc_status.bytes_in_buffer-sdu_lengths[0];
} else {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[DCCH] = 0;
}
} else {
dcch_header_len=0;
num_sdus = 0;
@@ -1375,9 +1402,16 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
sdu_length_total += sdu_lengths[num_sdus];
sdu_lcids[num_sdus] = DCCH1;
LOG_D(MAC,"[UE %d] TX Got %d bytes for DCCH1\n",module_idP,sdu_lengths[num_sdus]);
num_sdus++;
//update_bsr(module_idP, frameP, DCCH1);
//dcch_header_len +=2; // include dcch1
UE_mac_inst[module_idP].scheduling_info.LCID_status[DCCH1] = LCID_EMPTY;
if (rlc_status.bytes_in_buffer > sdu_lengths[num_sdus]) {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[DCCH1] = rlc_status.bytes_in_buffer-sdu_lengths[num_sdus];
} else {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[DCCH1] = 0;
}
num_sdus++;
} else {
dcch1_header_len =0;
}
@@ -1388,8 +1422,9 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
dtch_header_len+=3;
dtch_header_len_last=3;
all_pdu_len = bsr_len+phr_len+dcch_header_len+dcch1_header_len+dtch_header_len+sdu_length_total;
if ((UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid] == LCID_NOT_EMPTY) &&
((bsr_len+phr_len+dcch_header_len+dcch1_header_len+dtch_header_len+sdu_length_total) <= buflen)) {
(all_pdu_len <= buflen)) {
// optimize the dtch header lenght
//if ((UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DTCH] > 128) &&
@@ -1407,65 +1442,99 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
ENB_FLAG_NO,
MBMS_FLAG_NO, // eNB_index
lcid,
buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total);
buflen-all_pdu_len);
LOG_D(MAC,"[UE %d] Frame %d : UL-DTCH -> ULSCH%d, %d bytes to send (Transport Block size %d, mac header len %d, BSR byte[%d] %d)\n",
module_idP,frameP, lcid, rlc_status.bytes_in_buffer,buflen,dtch_header_len,
lcid, UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcid]);
lcid, UE_mac_inst[module_idP].scheduling_info.BSR_bytes[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]]);
if (rlc_status.bytes_in_buffer > 0) {
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
UE_mac_inst[module_idP].crnti,
eNB_index,
frameP,
ENB_FLAG_NO,
MBMS_FLAG_NO, // eNB_index
lcid,
(char *)&ulsch_buff[sdu_length_total]);
//adjust dtch header
LOG_D(MAC,"[UE %d] TX Got %d bytes for DTCH\n",module_idP,sdu_lengths[num_sdus]);
sdu_lcids[num_sdus] = lcid;
sdu_length_total += sdu_lengths[num_sdus];
if (sdu_lengths[num_sdus] < 128) {
dtch_header_len --;
dtch_header_len_last --;
}
num_sdus++;
UE_mac_inst[module_idP].ul_active = update_bsr(module_idP, frameP, eNB_index,lcid, UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]);
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
UE_mac_inst[module_idP].crnti,
eNB_index,
frameP,
ENB_FLAG_NO,
MBMS_FLAG_NO, // eNB_index
lcid,
(char *)&ulsch_buff[sdu_length_total]);
//adjust dtch header
LOG_D(MAC,"[UE %d] TX Got %d bytes for DTCH\n",module_idP,sdu_lengths[num_sdus]);
sdu_lcids[num_sdus] = lcid;
sdu_length_total += sdu_lengths[num_sdus];
if (sdu_lengths[num_sdus] < 128) {
dtch_header_len --;
dtch_header_len_last --;
}
if (rlc_status.bytes_in_buffer > sdu_lengths[num_sdus]) {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[lcid] = rlc_status.bytes_in_buffer-sdu_lengths[num_sdus];
} else {
UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[lcid] = 0;
}
//UE_mac_inst[module_idP].ul_active = update_bsr(module_idP, frameP, eNB_index,lcid, UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]);
num_sdus++;
} else {
dtch_header_len -= 3;
dtch_header_len -= 3;
}
UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid] = LCID_EMPTY;
} else { // no rlc pdu : generate the dummy header
dtch_header_len -= 3;
}
}
lcgid= get_bsr_lcgid(module_idP);
if (lcgid < 0 ) {
bsr_s = NULL;
bsr_l = NULL ;
} else if ((lcgid ==MAX_NUM_LCGID) && (bsr_ce_len == sizeof(BSR_LONG))) {
bsr_l = NULL;
bsr_t = NULL;
} else if ((lcgid ==MAX_NUM_LCGID) && (bsr_type == LONG_BSR)) {
bsr_s = NULL;
bsr_t = NULL;
bsr_l->Buffer_size0 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID0];
bsr_l->Buffer_size1 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1];
bsr_l->Buffer_size2 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2];
bsr_l->Buffer_size3 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3];
LOG_D(MAC, "[UE %d] Frame %d report long BSR (level LCGID0 %d,level LCGID1 %d,level LCGID2 %d,level LCGID3 %d)\n", module_idP,frameP,
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID0],
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1],
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2],
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3]);
} else if (bsr_ce_len == sizeof(BSR_SHORT)) {
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[LCGID0] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[LCGID1] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[LCGID2] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[LCGID3] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID0] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3] = 0;
} else if (bsr_type == SHORT_BSR) {
bsr_l = NULL;
bsr_t = NULL;
bsr_s->LCGID = lcgid;
bsr_s->Buffer_size = UE_mac_inst[module_idP].scheduling_info.BSR[lcgid];
LOG_D(MAC,"[UE %d] Frame %d report SHORT BSR with level %d for LCGID %d\n",
module_idP, frameP, UE_mac_inst[module_idP].scheduling_info.BSR[lcgid],lcgid);
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[lcgid] = 0;
} else if (bsr_type == TRUNCATED_BSR) {
bsr_l = NULL;
bsr_s = NULL;
bsr_t->LCGID = lcgid;
bsr_t->Buffer_size = UE_mac_inst[module_idP].scheduling_info.BSR[lcgid];
LOG_D(MAC,"[UE %d] Frame %d report SHORT BSR with level %d for LCGID %d\n",
module_idP, frameP, UE_mac_inst[module_idP].scheduling_info.BSR[lcgid],lcgid);
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[lcgid] = 0;
} else {
bsr_s = NULL;
bsr_l = NULL;
bsr_t = NULL;
}
// build PHR and update the timers
@@ -1494,12 +1563,14 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
dtch_header_len_last-=1;
dtch_header_len= (dtch_header_len >0)? dtch_header_len - dtch_header_len_last : dtch_header_len;
}
if ((buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total) <= 2) {
short_padding = buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total;
// 1-bit padding or 2-bit padding special padding subheader
padding_len = buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total;
if (padding_len <= 2) {
short_padding = padding_len;
// only add padding header
post_padding = 0;
} else {
if ((buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total) == buflen) {
if (padding_len == buflen) {// nona mac pdu
*access_mode=CANCELED_ACCESS;
}
@@ -1524,7 +1595,7 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
sdu_lcids, // sdu lcid
phr_p, // power headroom
NULL, // crnti
NULL, // truncated bsr
bsr_t, // truncated bsr
bsr_s, // short bsr
bsr_l,
post_padding); // long_bsr
@@ -1544,6 +1615,14 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
module_idP,payload_offset, sdu_length_total);
UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR]=0;
UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR]=0;
if (bsr_type > 0) { //if bsr trigger, reset two timer
UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF = get_sf_periodicBSRTimer(UE_mac_inst[module_idP].scheduling_info.periodicBSR_Timer);
UE_mac_inst[module_idP].scheduling_info.retxBSR_SF = get_sf_retxBSRTimer(UE_mac_inst[module_idP].scheduling_info.retxBSR_Timer);
UE_mac_inst[module_idP].retxBSRTimer_expires_flag = 0;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GET_SDU, VCD_FUNCTION_OUT);
stop_meas(&UE_mac_inst[module_idP].tx_ulsch_sdu);
@@ -1572,7 +1651,7 @@ ue_scheduler(
const int CC_id)
//------------------------------------------------------------------------------
{
int periodicBSR_Timer_infinity_value;
int lcid; // lcid index
int TTI= 1;
int bucketsizeduration = -1;
@@ -1705,10 +1784,35 @@ ue_scheduler(
// call SR procedure to generate pending SR and BSR for next PUCCH/PUSCH TxOp. This should implement the procedures
// outlined in Sections 5.4.4 an 5.4.5 of 36.321
// Put this in another function
// Call BSR procedure as described in Section 5.4.5 in 36.321
periodicBSR_Timer_infinity_value = get_sf_periodicBSRTimer(MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_infinity);
if (UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF != (int16_t)periodicBSR_Timer_infinity_value) {
if (UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF <= 0 ) {
/*
periodicBSR-Timer expires, in which case the BSR is referred below to as "Periodic BSR".
*/
UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR] = 1;
UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF = periodicBSR_Timer_infinity_value;
} else {
UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF--;
}
}
if (UE_mac_inst[module_idP].scheduling_info.retxBSR_SF != (int16_t)0xFFFF) {
if (UE_mac_inst[module_idP].scheduling_info.retxBSR_SF <= 0){
/* retxBSR-Timer expires and the UE has data available for transmission for any of the logical channels which belong
to a LCG, in which case the BSR is referred below to as "Regular BSR"
*/
UE_mac_inst[module_idP].retxBSRTimer_expires_flag = 1;
UE_mac_inst[module_idP].scheduling_info.retxBSR_SF = (int16_t)0xFFFF;
} else {
UE_mac_inst[module_idP].scheduling_info.retxBSR_SF--;
}
}
// Get RLC status info and update Bj for all lcids that are active
for (lcid=DCCH; lcid <= DTCH; lcid++ ) {
for (lcid=DCCH; lcid < MAX_NUM_LCID; lcid++ ) {
if ((lcid == 0) ||(UE_mac_inst[module_idP].logicalChannelConfig[lcid])) {
// meausre the Bj
if ((directionP == SF_UL)&& (UE_mac_inst[module_idP].scheduling_info.Bj[lcid] >= 0)) {
@@ -1727,6 +1831,12 @@ ue_scheduler(
}
}
if (lcid == DCCH) {
LOG_D(MAC,"[UE %d][SR] Frame %d subframe %d Pending data for SRB1=%d for LCGID %d \n",
module_idP, frameP,subframeP,UE_mac_inst[module_idP].scheduling_info.BSR[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]],
UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]);
}
if (update_bsr(module_idP,frameP, eNB_indexP, lcid, UE_mac_inst[module_idP].scheduling_info.LCGID[lcid])) {
UE_mac_inst[module_idP].scheduling_info.SR_pending= 1;
LOG_D(MAC,"[UE %d][SR] Frame %d subframe %d SR for PUSCH is pending for LCGID %d with BSR level %d (%d bytes in RLC)\n",
@@ -1970,41 +2080,108 @@ int get_bsr_lcgid (module_id_t module_idP)
}
}
uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen)
int get_bsr_type (module_id_t module_idP, uint8_t eNB_index,frame_t frameP,uint16_t buflen)
{
int lcgid=0;
uint8_t bsr_len=0, num_lcgid=0;
int bsr_type=0;
int lcid,lcgid;
int pdu = 0;
mac_rlc_status_resp_t rlc_status;
int long_bsr_size=sizeof(SCH_SUBHEADER_FIXED)+sizeof(BSR_LONG);
int short_bsr_size=sizeof(SCH_SUBHEADER_FIXED)+sizeof(BSR_SHORT);
int bsr_group_id[MAX_NUM_LCGID];
int lcg_report_num=0;
for (lcgid=0; lcgid < MAX_NUM_LCGID; lcgid++ ) {
if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 0 ) {
pdu += (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] + bsr_len + 2); //2 = sizeof(SCH_SUBHEADER_SHORT)
bsr_group_id[lcgid] = 0;
}
for (lcid=DCCH; lcid<NB_RB_MAX ; lcid++) {
rlc_status = mac_rlc_status_ind(module_idP, UE_mac_inst[module_idP].crnti,eNB_index,frameP,ENB_FLAG_NO,MBMS_FLAG_NO, lcid, 0);
if (rlc_status.bytes_in_buffer > 0 ) {
/* retxBSR-Timer expires and the UE has data available for transmission for any of the logical channels which belong
to a LCG, in which case the BSR is referred below to as "Regular BSR"
*/
if (UE_mac_inst[module_idP].retxBSRTimer_expires_flag == 1) {
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR] = 1;
}
pdu += rlc_status.bytes_in_buffer + sizeof(SCH_SUBHEADER_SHORT);
if (rlc_status.bytes_in_buffer > 128 ) {
pdu += 1; //sizeof(SCH_SUBHEADER_LONG)
}
/* UL data, for a logical channel which belongs to a LCG, becomes available for transmission in the RLC entity
either the data belongs to a logical channel with higher priority than the priorities of the logical channels
which belong to any LCG and for which data is already available for transmission
*/
if (rlc_status.bytes_in_buffer > UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[lcid]) {
bsr_group_id[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]] ++;
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR] = 1;
}
}
if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 128 ) { // long header size: adjust the header size
pdu += 1;
}
/* or there is no data available for transmission for any of the logical channels which belong to a LCG,
in which case the BSR is referred below to as "Regular BSR"
if (pdu == 0) {
UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR] = 1;
}
*/
// computed how many LCG has data available for transmission
for (lcgid=0; lcgid < MAX_NUM_LCGID; lcgid++ ) {
if (bsr_group_id[lcgid] > 0) {
lcg_report_num ++;
}
// current phy buff can not transport all sdu for this lcgid -> transmit a bsr for this lcgid
if ( (pdu > buflen) && (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 0 ) ) {
num_lcgid +=1;
bsr_len = (num_lcgid >= 2 ) ? sizeof(BSR_LONG) : sizeof(BSR_SHORT) ;
}
LOG_D(MAC,"BSR Bytes %d for lcgid %d bsr len %d num lcgid %d\n", UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid], lcgid, bsr_len, num_lcgid);
}
/*
UL resources are allocated and number of padding bits is equal to or larger than the size of the Buffer Status
Report MAC control element plus its subheader, in which case the BSR is referred below to as "Padding BSR"
*/
if ((pdu > 0) && ((pdu+long_bsr_size) <= buflen)) {
UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR] = 1;
}
if ( bsr_len > 0 )
LOG_D(MAC,"[UE %d] Prepare a %s (Transport Block Size %d, MAC pdu Size %d) \n",
module_idP, map_int_to_str(BSR_names, bsr_len), buflen, pdu);
/* For Regular and Periodic BSR
- if more than one LCG has data available for transmission in the TTI where the BSR is transmitted: report Long BSR;
- else report Short BSR.
*/
if ((UE_mac_inst[module_idP].BSR_reporting_active[REGULAR_BSR] == 1)
|| (UE_mac_inst[module_idP].BSR_reporting_active[PERIODIC_BSR] == 1)) {
if (lcg_report_num > 1) {
bsr_type = LONG_BSR;
} else {
bsr_type = SHORT_BSR;
}
}
/* For Padding BSR:
- if the number of padding bits is equal to or larger than the size of the Short BSR plus its subheader but smaller than the size of the Long BSR plus its subheader:
- if more than one LCG has data available for transmission in the TTI where the BSR is transmitted: report Truncated BSR of the LCG with the highest priority logical channel with data available for transmission;
- else report Short BSR.
- else if the number of padding bits is equal to or larger than the size of the Long BSR plus its subheader, report Long BSR.
*/
if (UE_mac_inst[module_idP].BSR_reporting_active[PADDING_BSR] == 1) {
if (((pdu + short_bsr_size) <= buflen)&&(buflen<(pdu + long_bsr_size))) {
if (lcg_report_num > 1) {
bsr_type = TRUNCATED_BSR;
} else {
bsr_type = SHORT_BSR;
}
} else if ((pdu + long_bsr_size) <= buflen) {
if (lcg_report_num > 1) {
bsr_type = LONG_BSR;
} else {
bsr_type = SHORT_BSR;
}
}
}
return bsr_len;
if ( bsr_type > 0 ) {
LOG_D(MAC, "[UE %d] bsr_type %d (Transport Block Size %d, MAC pdu len %d) lcg_report_num %d\n",
module_idP, bsr_type, buflen, pdu, lcg_report_num);
}
return bsr_type;
}
boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_index, uint8_t lcid, uint8_t lcg_id)
{
@@ -2029,10 +2206,12 @@ boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_in
0);
if (rlc_status.bytes_in_buffer > 0 ) {
//BSR trigger SR
sr_pending = TRUE;
UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid] = LCID_NOT_EMPTY;
UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id] += locate (BSR_TABLE,BSR_TABLE_SIZE, rlc_status.bytes_in_buffer);
// sum lcid buffer which has same lcgid
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id] += rlc_status.bytes_in_buffer;
UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id] = locate_BsrIndexByBufferSize(BSR_TABLE, BSR_TABLE_SIZE, UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id]);
// UE_mac_inst[module_idP].scheduling_info.BSR_short_lcid = lcid; // only applicable to short bsr
LOG_D(MAC,"[UE %d] BSR level %d (LCGID %d, rlc buffer %d byte)\n",
module_idP, UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id],lcg_id, UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id]);
@@ -2045,7 +2224,7 @@ boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_in
return sr_pending;
}
uint8_t locate (const uint32_t *table, int size, int value)
uint8_t locate_BsrIndexByBufferSize (const uint32_t *table, int size, int value)
{
uint8_t ju, jm, jl;
@@ -2144,7 +2323,7 @@ int get_sf_periodicBSRTimer(uint8_t sf_offset)
case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_infinity:
default:
return -1;
return 0xFFFF;
break;
}
}
openair2/LAYER2/MAC/vars.h
+9
View File
@@ -45,6 +45,15 @@ const uint32_t BSR_TABLE[BSR_TABLE_SIZE]= {0,10,12,14,17,19,22,26,31,36,42,49,57
1326,1552,1817,2127,2490,2915,3413,3995,4677,5467,6411,7505,8787,10287,12043,14099,
16507,19325,22624,26487,31009,36304,42502,49759,58255,68201,79846,93479,109439, 128125,150000, 300000
};
// extended bsr table--currently not used
const uint32_t Extended_BSR_TABLE[BSR_TABLE_SIZE] = {0,10,13,16,19,23,29,35,43,53,65,80,98,120,147,
181,223,274,337,414,509,625,769,945,1162,1429,
1757,2161,2657,3267,4017,4940,6074,7469,9185,
11294,13888,17077,20999,25822,31752,39045,48012,
59039,72598,89272,109774,134986,165989,204111,
250990,308634,379519,466683,573866,705666,867737,
1067031,1312097,1613447,1984009,2439678,3000000,
6000000};
//uint32_t EBSR_Level[63]={0,10,13,16,19,23,29,35,43,53,65,80,98,120,147,181};