u8 attach_ue0(char *sdu)
{
u8 Size;
u16 Size16;
u8 lcid=0;
UE_rrc_inst[0].Info[0].State = RRC_SI_RECEIVED;
rrc_ue_generate_RRCConnectionRequest(0,131,0);
Size = mac_rrc_data_req(0,
131,
CCCH,1,
&sdu[sizeof(SCH_SUBHEADER_FIXED)],0,
0);
Size16 = (u16)Size;
generate_ulsch_header((u8 *)sdu, // mac header
1, // num sdus
0, // short padding
&Size16, // sdu length
&lcid, // sdu lcid
NULL, // power headroom
NULL, // crnti
NULL, // truncated bsr
NULL, // short bsr
NULL,
0); // post padding
return(Size+sizeof(SCH_SUBHEADER_FIXED));
}
RRC_status_t rrc_rx_tx(uint8_t Mod_id, const frame_t frameP, const eNB_flag_t eNB_flagP,uint8_t index,int CC_id){
uint8_t UE_id;
int32_t current_timestamp_ms, ref_timestamp_ms;
struct timeval ts;
if(eNB_flagP == 0) {
// check timers
if (UE_rrc_inst[Mod_id].Info[index].T300_active == 1) {
if ((UE_rrc_inst[Mod_id].Info[index].T300_cnt % 10) == 0)
LOG_D(RRC,
"[UE %d][RAPROC] Frame %d T300 Count %d ms\n", Mod_id, frameP, UE_rrc_inst[Mod_id].Info[index].T300_cnt);
if (UE_rrc_inst[Mod_id].Info[index].T300_cnt
== T300[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.t300]) {
UE_rrc_inst[Mod_id].Info[index].T300_active = 0;
// ALLOW CCCH to be used
UE_rrc_inst[Mod_id].Srb0[index].Tx_buffer.payload_size = 0;
rrc_ue_generate_RRCConnectionRequest (Mod_id, frameP, index);
return (RRC_ConnSetup_failed);
}
UE_rrc_inst[Mod_id].Info[index].T300_cnt++;
}
if (UE_rrc_inst[Mod_id].sib2[index]) {
if (UE_rrc_inst[Mod_id].Info[index].N310_cnt
== N310[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.n310]) {
UE_rrc_inst[Mod_id].Info[index].T310_active = 1;
}
}
else { // in case we have not received SIB2 yet
if (UE_rrc_inst[Mod_id].Info[index].N310_cnt == 100) {
UE_rrc_inst[Mod_id].Info[index].N310_cnt = 0;
return RRC_PHY_RESYNCH;
}
}
if (UE_rrc_inst[Mod_id].Info[index].T310_active == 1) {
if (UE_rrc_inst[Mod_id].Info[index].N311_cnt
== N311[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.n311]) {
UE_rrc_inst[Mod_id].Info[index].T310_active = 0;
UE_rrc_inst[Mod_id].Info[index].N311_cnt = 0;
}
if ((UE_rrc_inst[Mod_id].Info[index].T310_cnt % 10) == 0)
LOG_D(RRC, "[UE %d] Frame %d T310 Count %d ms\n", Mod_id, frameP, UE_rrc_inst[Mod_id].Info[index].T310_cnt);
if (UE_rrc_inst[Mod_id].Info[index].T310_cnt == T310[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.t310]) {
UE_rrc_inst[Mod_id].Info[index].T310_active = 0;
rrc_t310_expiration (frameP, Mod_id, index);
return (RRC_PHY_RESYNCH);
}
UE_rrc_inst[Mod_id].Info[index].T310_cnt++;
}
if (UE_rrc_inst[Mod_id].Info[index].T304_active==1) {
if ((UE_rrc_inst[Mod_id].Info[index].T304_cnt % 10) == 0)
LOG_D(RRC,"[UE %d][RAPROC] Frame %d T304 Count %d ms\n",Mod_id,frameP,
UE_rrc_inst[Mod_id].Info[index].T304_cnt);
if (UE_rrc_inst[Mod_id].Info[index].T304_cnt == 0) {
UE_rrc_inst[Mod_id].Info[index].T304_active = 0;
UE_rrc_inst[Mod_id].HandoverInfoUe.measFlag = 1;
LOG_E(RRC,"[UE %d] Handover failure..initiating connection re-establishment procedure... \n");
//Implement 36.331, section 5.3.5.6 here
return(RRC_Handover_failed);
}
UE_rrc_inst[Mod_id].Info[index].T304_cnt--;
}
// Layer 3 filtering of RRC measurements
if (UE_rrc_inst[Mod_id].QuantityConfig[0] != NULL) {
ue_meas_filtering(Mod_id,frameP,index);
}
ue_measurement_report_triggering(Mod_id,frameP,index);
if (UE_rrc_inst[Mod_id].Info[0].handoverTarget > 0)
LOG_I(RRC,"[UE %d] Frame %d : RRC handover initiated\n", Mod_id, frameP);
if((UE_rrc_inst[Mod_id].Info[index].State == RRC_HO_EXECUTION) &&
(UE_rrc_inst[Mod_id].HandoverInfoUe.targetCellId != 0xFF)) {
UE_rrc_inst[Mod_id].Info[index].State= RRC_IDLE;
return(RRC_HO_STARTED);
}
}
else { // eNB
check_handovers(Mod_id,frameP);
// counetr, and get the value and aggregate
#ifdef LOCALIZATION
/* for the localization, only primary CC_id might be relevant*/
gettimeofday(&ts, NULL);
current_timestamp_ms = ts.tv_sec * 1000 + ts.tv_usec / 1000;
ref_timestamp_ms = eNB_rrc_inst[Mod_id].reference_timestamp_ms;
for (UE_id=0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
if ((current_timestamp_ms - ref_timestamp_ms > eNB_rrc_inst[Mod_id].aggregation_period_ms) &&
rrc_get_estimated_ue_distance(Mod_id,frameP,UE_id, CC_id,eNB_rrc_inst[Mod_id].loc_type) != -1) {
LOG_D(LOCALIZE, " RRC [UE/id %d -> eNB/id %d] timestamp %d frame %d estimated r = %f\n",
UE_id,
Mod_id,
current_timestamp_ms,
frameP,
rrc_get_estimated_ue_distance(Mod_id,frameP,UE_id, CC_id,eNB_rrc_inst[Mod_id].loc_type));
LOG_D(LOCALIZE, " RRC status %d\n", eNB_rrc_inst[Mod_id].Info.UE[UE_id].Status);
push_front(&eNB_rrc_inst[Mod_id].loc_list,
rrc_get_estimated_ue_distance(Mod_id,frameP,UE_id, CC_id,eNB_rrc_inst[Mod_id].loc_type));
eNB_rrc_inst[Mod_id].reference_timestamp_ms = current_timestamp_ms;
}
}
#endif
}
return (RRC_OK);
}
