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…
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…
Can the Same 5G Cell be used for NSA and SA ? The Short answer is Yes. The network can configure the same cell as an NSA and SA cell. Initially, the operator might deploy the cell as an NSA…
The Physical layer specifications of 5G-NR are spread across six Specification documents and one general description document; The relation between Multiple PHY Layer specifications is illustrated below. TS 38.201: 5G NR Physical layer; General description The scope of the document…
5G NR UE Timers and Constants Below is the list of all the UE Timers and Constants in the 5G NR. All descriptions have been copied from the spec and have not been modified to keep the original information handy…
A UE when it is connected to the network, it needs to continuously monitor the Radio link for reliable communication. The UE monitor’s the downlink link quality based on the reference signal in order to detect the downlink radio link…
MIB is mandatory system information that is broadcasted by the gNB at a set periodicity. During the initial cell selection procedure, UE assumes that the SSB is broadcasted every 20ms by the gNB. UE gets MIB by decoding the PBCH…
Reading specs from 3GPP can be sometimes very difficult as there are so many specs and navigating through each of them can be a daunting task and there is no definitive and clear guide on how to use the specs…
In Release-16, 3GPP Introduced a new Handover procedure that allows UE to decide to perform handover when certain conditions are met, In the Legacy handover procedure network was in charge of making the decision whether the handover should be performed…
In 2-Step RACH the msg2 i.e msgB Consists of a Random Access response and Contention resolution identity. It is a combination of msg2+msg4 from a 4-step RACH perspective. The details of msgA transmission and msgB reception are discussed in another…