What is T301 timer?
The T301 is a supervision timer for the RRCConnectionReestablishment procedure. If T311 expires before the UE finds a suitable cell, or the T301 expires before the RRCConnectionReestablishment, the UE goes to RRC_IDLE. If success is achieved in the Reestablishment procedure, UE happily goes back to RRC_CONNECTED.
What is LTE t300?
>>Starts at the RRC connection REQ transmit. >>Stops at the Receipt of RRC connection setup or reject message OR at the cell reselection time OR upon abortion of connection establishment by Higher layers (L2/L3).
What is T304 timer in LTE?
T304. Reception of RRCConnectionReconfiguration message including the MobilityControl Info or reception of MobilityFromEUTRACommand message including CellChangeOrder. Criterion for successful completion of handover to EUTRA or cell change order is met (the criterion is specified in the target RAT in case of inter-RAT)
What is N310 in LTE?
When the UE detects a few consecutive “out-of-sync” indications, known as N310, it initiates a network-configured RLF timer T310. By default, the number of N310, 200 ms interval, out-of-sync pulses is 1.
What is T300 in 5g?
The Timer T300 starts at the transmission of RRC Connection Request. It stops at receptionof RRC Connection Setup or RRC Connection Reject message, cell selection.
What is inactivity timer in LTE?
Inactivity Timer This RBS level parameter influences the amount of time a UE spends in idle mode and hence whether the idle mode or connected mode mobility configuration is dominant.
What is LTE RLF?
“RLF report” is used in LTE systems allowing UE to report information to the network about a connection failure event, radio link failure (RLF) or handover failure (HOF). The information includes available geographical location information and available mobility measurement results.
What is T312 timer?
The timer T312 starts upon triggering a measurement report for measurement identity for which T312 has been configured while T310 timer is running. • It stops upon receiving N311 consecutive in-sync indications from lower layers. • upon triggering the handover procedure.
What is SIB2 LTE?
SystemInformationBlockType2 (SIB2) contains radio resource configuration information that is common for all UEs. It contains access barring information, radio resource configuration of common and shared channels, timers and constants which are used by UEs, uplink power control information etc.
What is RRC connection reestablishment?
The purpose of RRC CONNECTION RE-ESTABLISHMENT procedure is to re-establish the RRC connection, which involves the resumption of SRB1 operation and the re-activation of security (without changing algorithms). The UE shall only initiate this procedure when AS security has been activated.
What is RRC inactive state?
Overview of RRC Inactive state: In 5G, they have introduced new RRC Stats called “RRC Inactive” to minimize latency as well as to reduce signalling load. Transitions from RRC Inactive to Connected is very quick as UE Context is stored at gNB and UE.
What is an inactivity timer?
The inactivity timer functionality closes user sessions that have been idle for a specified period of time. This feature is enabled by default and the time-out value is 30 minutes. System administrators can configure required settings and start or stop the inactivity timer.