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modify BSR code according comments

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This commit is contained in:
calvin wang
2016-10-21 18:26:50 +08:00
parent 8ce73e5a7e
commit 948f2df9f1
5 changed files with 90 additions and 126 deletions
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openair2/LAYER2/MAC/config.c
+1 -1
View File
@@ -233,7 +233,7 @@ rrc_mac_config_req(
if (mac_MainConfig->ext1 && mac_MainConfig->ext1->sr_ProhibitTimer_r9) {
UE_mac_inst[Mod_idP].scheduling_info.sr_ProhibitTimer = (uint16_t) *mac_MainConfig->ext1->sr_ProhibitTimer_r9;
} else {
UE_mac_inst[Mod_idP].scheduling_info.sr_ProhibitTimer = (uint16_t) 0;
UE_mac_inst[Mod_idP].scheduling_info.sr_ProhibitTimer = 0;
}
if (mac_MainConfig->ext2 && mac_MainConfig->ext2->mac_MainConfig_v1020) {
openair2/LAYER2/MAC/defs.h
+1 -1
View File
@@ -941,7 +941,7 @@ 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];
/// buffer status for each lcid
uint8_t LCID_status[MAX_NUM_LCID];
openair2/LAYER2/MAC/proto.h
+2 -2
View File
@@ -548,7 +548,7 @@ int cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8
\param[in] Mod_id instance of the UE
\param[out] lcgid
*/
int get_bsr_lcgid (module_id_t module_idP, int *num_lcgid);
int get_bsr_lcgid (module_id_t module_idP);
/*! \fn uint8_t get_bsr_len (module_id_t module_idP,uint16_t bufflen);
\brief determine whether the bsr is short or long assuming that the MAC pdu is built
@@ -556,7 +556,7 @@ int get_bsr_lcgid (module_id_t module_idP, int *num_lcgid);
\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);
uint8_t get_bsr_len (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
@@ -399,7 +399,7 @@ 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
+85 -121
View File
@@ -133,7 +133,7 @@ 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
@@ -1202,10 +1202,9 @@ 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_truncated;
BSR_SHORT bsr_short;
BSR_LONG bsr_long;
BSR_SHORT *bsr_s=&bsr_short;
BSR_SHORT *bsr_t=&bsr_truncated;
BSR_LONG *bsr_l=&bsr_long;
POWER_HEADROOM_CMD phr;
POWER_HEADROOM_CMD *phr_p=&phr;
@@ -1214,7 +1213,6 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
int j; // used for padding
// Compute header length
int all_pdu_len;
int num_lcgid=0;
if (CC_id>0) {
LOG_E(MAC,"Transmission on secondary CCs is not supported yet\n");
@@ -1249,18 +1247,9 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
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;
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",
module_idP, phr_len, phr_ce_len, phr_header_len, buflen);
} else {
phr_len=0;
}
bsr_ce_len = get_bsr_len (module_idP, buflen-phr_len);
// retxBSR-Timer expires or periodicBSR-Timer expires and UE has data available for transmission
bsr_ce_len = get_bsr_len (module_idP, eNB_index, frameP, buflen);
// retxBSR-Timer expires or periodicBSR-Timer expires and Regular BSR trigger
if ((bsr_ce_len > 0 ) && (UE_mac_inst[module_idP].BSR_reporting_active > 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",
@@ -1272,6 +1261,15 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
//bsr_len = bsr_ce_len + bsr_header_len;
}
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",
module_idP, phr_len, phr_ce_len, phr_header_len, buflen);
} else {
phr_len=0;
}
// check for UL bandwidth requests and add SR control element
// check for UL bandwidth requests and add SR control element
@@ -1305,8 +1303,9 @@ 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;
} else {
dcch_header_len=0;
num_sdus = 0;
@@ -1345,6 +1344,7 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
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;
} else {
dcch1_header_len =0;
}
@@ -1379,7 +1379,7 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
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,
@@ -1400,62 +1400,54 @@ void ue_get_sdu(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_t subf
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]);
//UE_mac_inst[module_idP].ul_active = update_bsr(module_idP, frameP, eNB_index,lcid, UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]);
} else {
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, &num_lcgid);
lcgid= get_bsr_lcgid(module_idP);
if (num_lcgid == 0 ) {
if (lcgid < 0 ) {
bsr_s = NULL;
bsr_t = NULL;
bsr_l = NULL ;
} else if ((lcgid ==MAX_NUM_LCGID) && (bsr_ce_len == sizeof(BSR_LONG))) {
bsr_s = 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];
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;
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)) {
bsr_l = NULL;
} else if (num_lcgid == 1){
if (bsr_ce_len == sizeof(BSR_SHORT)){
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);
} else {
bsr_s = NULL;
bsr_t = NULL;
bsr_l = NULL;
}
} else if (num_lcgid > 1) {
if (bsr_ce_len == sizeof(BSR_LONG)){
bsr_t = NULL;
bsr_s = 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)){
bsr_l = NULL;
bsr_s = NULL;
bsr_t->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",
bsr_s->LCGID = lcgid;
bsr_s->Buffer_size = UE_mac_inst[module_idP].scheduling_info.BSR[lcgid];
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] = 0;
UE_mac_inst[module_idP].scheduling_info.BSR[lcgid] = 0;
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);
} else {
bsr_s = NULL;
bsr_t = NULL;
bsr_l = NULL;
}
} else {
bsr_s = NULL;
bsr_t = NULL;
bsr_l = NULL;
}
@@ -1517,7 +1509,7 @@ 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
bsr_t, // truncated bsr
NULL, // truncated bsr
bsr_s, // short bsr
bsr_l,
post_padding); // long_bsr
@@ -1719,7 +1711,7 @@ ue_scheduler(
}
// 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)) {
@@ -1740,6 +1732,8 @@ ue_scheduler(
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;
// Regular BSR trigger
UE_mac_inst[module_idP].BSR_reporting_active = 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",
module_idP, frameP,subframeP,UE_mac_inst[module_idP].scheduling_info.LCGID[lcid],
UE_mac_inst[module_idP].scheduling_info.BSR[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]],
@@ -1960,75 +1954,49 @@ int cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8
}
#endif
int get_bsr_lcgid (module_id_t module_idP, int *num_lcgid)
int get_bsr_lcgid (module_id_t module_idP)
{
int lcgid, lcgid_tmp=-1;
int num_active_lcgid = 0;
for (lcgid = 0 ; lcgid < MAX_NUM_LCGID; lcgid++) {
if (UE_mac_inst[module_idP].scheduling_info.BSR[lcgid] > 0 ) {
if (lcgid_tmp == -1){
// first priority lcgid
lcgid_tmp = lcgid;
}
lcgid_tmp = lcgid;
num_active_lcgid+=1;
}
}
*num_lcgid = num_active_lcgid;
if (num_active_lcgid == 0) {
return -1; // no data
return -1;
} else if (num_active_lcgid == 1) {
return lcgid_tmp;
} else {
return lcgid_tmp;//only one lcgid, report short bsr
return MAX_NUM_LCGID;
}
}
uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen)
uint8_t get_bsr_len (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 lcid;
uint8_t bsr_len=0, num_lcid=0;
int pdu = 0;
int long_bsr_plus_subheader_length = sizeof(BSR_LONG)+sizeof(SCH_SUBHEADER_FIXED);
int short_bsr_plus_subheader_length = sizeof(BSR_SHORT)+sizeof(SCH_SUBHEADER_FIXED);
mac_rlc_status_resp_t rlc_status;
// check how many lcg have data to report
for (lcgid=0; lcgid < MAX_NUM_LCGID; lcgid++ ) {
if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 0 ) {
num_lcgid ++;
pdu += (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] + sizeof(SCH_SUBHEADER_SHORT));
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 ) {
pdu += rlc_status.bytes_in_buffer + sizeof(SCH_SUBHEADER_SHORT) + bsr_len;
if (rlc_status.bytes_in_buffer > 128 ) {
pdu += 1; //sizeof(SCH_SUBHEADER_LONG)
}
}
if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 128 ) { // long header size: adjust the header size
pdu += 1;
}
LOG_D(MAC,"BSR Bytes %d for lcgid %d num lcgid %d\n", UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid], lcgid, num_lcgid);
}
// current phy buff can not transport all sdu for this lcgid -> transmit a bsr for this lcgid
if (buflen < pdu) {
if (num_lcgid > 0) {
bsr_len = sizeof(BSR_SHORT);
} else {
bsr_len = 0;
}
}
// padding larger then long bsr
if (buflen > (pdu + long_bsr_plus_subheader_length)) {
if (num_lcgid > 1) {
bsr_len = sizeof(BSR_LONG);
} else if (num_lcgid > 0) {
bsr_len = sizeof(BSR_SHORT);
} else {
bsr_len = 0;
}
}
// padding larger then short bsr and shorter then long bsr
if ((buflen < (pdu + long_bsr_plus_subheader_length)) &&
(buflen > (pdu + short_bsr_plus_subheader_length))) {
if (num_lcgid > 0) {
bsr_len = sizeof(BSR_SHORT);
} else {
bsr_len = 0;
if ( (pdu > buflen) && (rlc_status.bytes_in_buffer > 0 ) ) {
num_lcid +=1;
bsr_len = (num_lcid >= 2 ) ? sizeof(BSR_LONG) : sizeof(BSR_SHORT) ;
}
LOG_D(MAC,"LC buffer Bytes %d for lcid %d bsr len %d num lcid %d\n", rlc_status.bytes_in_buffer, lcid, bsr_len, num_lcid);
}
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);
@@ -2036,16 +2004,15 @@ uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen)
return bsr_len;
}
boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_index, uint8_t lcid, uint8_t lcg_id)
{
mac_rlc_status_resp_t rlc_status;
boolean_t Bsr_pending = FALSE;
boolean_t sr_pending = FALSE;
if ((lcg_id < 0) || (lcg_id >= MAX_NUM_LCGID) ) {
return Bsr_pending;
return sr_pending;
}
// fixme: need a better way to reset
@@ -2062,14 +2029,11 @@ boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_in
if (rlc_status.bytes_in_buffer > 0 ) {
//BSR trigger SR
Bsr_pending = TRUE;
sr_pending = TRUE;
UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid] = LCID_NOT_EMPTY;
UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id] = rlc_status.bytes_in_buffer;
if (UE_mac_inst[module_idP].scheduling_info.extendedBSR_Sizes_r10 == TRUE){
UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id] = locate_BsrIndexByBufferSize(Extended_BSR_TABLE, BSR_TABLE_SIZE, UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id]);
} else {
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]);
}
// 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]);
@@ -2079,7 +2043,7 @@ boolean_t update_bsr(module_id_t module_idP, frame_t frameP, eNB_index_t eNB_in
}
//}
return Bsr_pending;
return sr_pending;
}
uint8_t locate_BsrIndexByBufferSize (const uint32_t *table, int size, int value)