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rrc,feature: Use t301 to set time that the enb waits for the UE RRCConnectionSetupComplete or ReestablishmentComplete

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master
Francisco 3 years ago committed by Francisco Paisana
parent 0349949cce
commit 3f75538660
2 changed files with 29 additions and 15 deletions
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1
srsenb/hdr/stack/rrc/rrc_ue.h
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@ -28,6 +28,7 @@ public:
enum activity_timeout_type_t {
MSG3_RX_TIMEOUT = 0, ///< Msg3 has its own timeout to quickly remove fake UEs from random PRACHs
UE_INACTIVITY_TIMEOUT, ///< UE inactivity timeout (usually bigger than reestablishment timeout)
MSG5_RX_TIMEOUT, ///< UE timeout for receiving RRCConnectionSetupComplete / RRCReestablishmentComplete
nulltype
};

43
srsenb/src/stack/rrc/rrc_ue.cc
Unescape Escape View File

@ -43,7 +43,12 @@ rrc::ue::ue(rrc* outer_rrc, uint16_t rnti_, const sched_interface::ue_cfg_t& sch
mac_ctrl(rnti, ue_cell_list, bearer_list, parent->cfg, parent->mac, *parent->cell_common_list, sched_ue_cfg)
{}
rrc::ue::~ue() {}
rrc::ue::~ue()
{
if (old_reest_rnti != SRSRAN_INVALID_RNTI and parent->users.count(old_reest_rnti) > 0) {
parent->rem_user(old_reest_rnti);
}
}
int rrc::ue::init()
{
@ -194,19 +199,23 @@ void rrc::ue::activity_timer_expired(const activity_timeout_type_t type)
parent->logger.info("Activity timer for rnti=0x%x expired after %d ms", rnti, activity_timer.time_elapsed());
if (parent->s1ap->user_exists(rnti)) {
if (type == UE_INACTIVITY_TIMEOUT) {
parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::user_inactivity);
con_release_result = procedure_result_code::activity_timeout;
} else if (type == MSG3_RX_TIMEOUT) {
// MSG3 timeout, no need to notify S1AP, just remove UE
parent->rem_user_thread(rnti);
con_release_result = procedure_result_code::msg3_timeout;
} else {
// Unhandled activity timeout, just remove UE and log an error
parent->rem_user_thread(rnti);
con_release_result = procedure_result_code::activity_timeout;
parent->logger.error(
"Unhandled reason for activity timer expiration. rnti=0x%x, cause %d", rnti, static_cast<unsigned>(type));
switch (type) {
case UE_INACTIVITY_TIMEOUT:
parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::user_inactivity);
con_release_result = procedure_result_code::activity_timeout;
break;
case MSG3_RX_TIMEOUT:
case MSG5_RX_TIMEOUT:
// MSG3 timeout, no need to notify S1AP, just remove UE
parent->rem_user_thread(rnti);
con_release_result = procedure_result_code::msg3_timeout;
break;
default:
// Unhandled activity timeout, just remove UE and log an error
parent->rem_user_thread(rnti);
con_release_result = procedure_result_code::activity_timeout;
parent->logger.error(
"Unhandled reason for activity timer expiration. rnti=0x%x, cause %d", rnti, static_cast<unsigned>(type));
}
} else {
parent->rem_user_thread(rnti);
@ -256,6 +265,9 @@ void rrc::ue::set_activity_timeout(activity_timeout_type_t type)
case UE_INACTIVITY_TIMEOUT:
deadline_ms = parent->cfg.inactivity_timeout_ms;
break;
case MSG5_RX_TIMEOUT:
deadline_ms = get_ue_cc_cfg(UE_PCELL_CC_IDX)->sib2.ue_timers_and_consts.t301.to_number();
break;
default:
parent->logger.error("Unknown timeout type %d", type);
}
@ -617,7 +629,7 @@ void rrc::ue::handle_rrc_con_reest_req(rrc_conn_reest_request_s* msg)
old_reest_rnti = old_rnti;
state = RRC_STATE_WAIT_FOR_CON_REEST_COMPLETE;
set_activity_timeout(UE_INACTIVITY_TIMEOUT);
set_activity_timeout(MSG5_RX_TIMEOUT);
}
void rrc::ue::send_connection_reest(uint8_t ncc)
@ -700,6 +712,7 @@ void rrc::ue::handle_rrc_con_reest_complete(rrc_conn_reest_complete_s* msg, srsr
// remove old RNTI
parent->rem_user(old_reest_rnti);
old_reest_rnti = SRSRAN_INVALID_RNTI;
state = RRC_STATE_REESTABLISHMENT_COMPLETE;

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