Beam Correspondence

Beam Correspondence in 5G-NR

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…

5G-NR Physical Layer SpecficationsOverview

5G-NR Physical Layer Specifications overview

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&Constants-2

5G NR Timers and Constants

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…

Radio Link Monitoring in 5G-NR

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…


5G-NR Master Information Block (MIB)

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…

Guide to reading 3GPP Specifications

Guide to reading 3GPP Specifications

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…

Conditional Handover (CHO)

Conditional Handover (CHO) in 5G NR Release16

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…

2-Step RACH_msgB-Contents

2-Step RACH: msgB Contents information

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…

2-Step RACH_msgB-Reception

2-Step RACH : MsgB Reception-Part2

msgB is a combination of Msg2 and Msg4. In response to a transmission of a PRACH and a PUSCH i.e msgA transmission, UE expects a Response from gNB containing MsgB information. The details related to msgB reception are discussed in this article.