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…
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…
What is Contention Resolution in 5G NR RACH? The Contention Resolution Identity (MSG4) is a crucial part of the Random Access procedure in 5G NR. Contention resolution in 5G occurs when multiple UEs attempt to access the network simultaneously, causing…
In 5G NR (New Radio), the Random Access (RA) procedure is essential for connecting User Equipment (UE) to the network. It facilitates tasks such as initial network access, mobility, and handover. This process involves the exchange of various control messages…
Introducing a comprehensive poster detailing the 5G NR Cell Scan Procedure and RACH Procedure. This visual guide offers a step-by-step overview of how UE initiate’s the cell scan procedure upon powering on, delving into the intricacies of 5G cell scanning.…
Beam Failure detection and recovery is a very important procedure in 5G NR. I will try to explain the details in this post with as many details as possible. I will start with giving an overall idea in simple terms…
Discontinuous Reception (DRX) is a power-saving feature designed to extend the battery life of mobile devices. It achieves this by allowing the device to switch off its radio receiver when not expecting network communication, thus reducing power consumption significantly. DRX…
The concept of Scheduling request is same for LTE and 5G NR. Scheduling request is way for UE to tell the network that it has some data in its MAC buffer and it needs PHY resources in Uplink to send…
PDCCH order is one of the reasons for RACH trigger in both LTE and 5G-NR. If the network detects that there is DL Data to be sent to UE in its MAC Buffer and there is a UL synchronization issue…
3GPP Defines Beam correspondence as to the ability of the UE to select a suitable beam for UL transmission based on DL measurements with or without relying on UL beam sweeping. The beam correspondence requirement is satisfied assuming the presence…