Measurement Event B1 is triggered when the quality of an inter-RAT neighbor becomes better than a predefined threshold. Event B1 event is primarily used for mobility between 5G NR and other RATs like LTE. Trigger Condition: Event B1 occurs when…
When a UE is connected to the network, ensuring seamless connectivity between UE and the network is vital for a reliable cellular communication service. One critical procedure of it is handling of radio link failure and when UE gNB is…
In the 5G-NR RRC Reestablishment procedure is a way for UE to inform the network that it needs to reestablish the connection with the network due to any error of failure on the UE. UE can further inform the network…
LCID values for DL-SCH LCID Values Table Index LCID Values 0 SCCH carrying PC5-S messages that are not protected 1 SCCH carrying PC5-S messages “Direct Security Mode Command” and “Direct Security Mode Complete”, “ProSe direct link security mode command” and…
The concept of a PDU Session in 5G can be compared to the “EPS Bearer” in LTE. It is a critical component that provides end-to-end user plane connectivity between the User Equipment (UE) and the Data Network Name (DNN). A PDU Session in 5G is…
MSG2 RACH Failure Common Causes in 5G NR: The Random Access Channel (RACH) procedure in 5G NR is a critical part of establishing a communication link between the (UE) and the gNB. MSG2, which is the Random Access Response sent…
Event A5 (SpCell becomes worse than threshold1 and neighbour becomes better than threshold2) Measurement Event A5 is a critical event in 5G NR, used by UE to ensure optimal handovers between cells. Measurement Event A5 is triggered when: This dual…
RNTI Values In 5G NR, RNTI (Radio Network Temporary Identifier) values are super important for figuring out different types of communication in the network. They help us tell apart control and data transmissions, so we can manage resources efficiently. Each…