NR-NR Dual Connectivity (NR-DC)
NR-DC is the variant when the UE is connected to one gNB that acts as a Master Node and one gNB that acts as a Secondary Node. The Master Node is connected to 5GC while the Secondary Node is connected…
NR-DC is the variant when the UE is connected to one gNB that acts as a Master Node and one gNB that acts as a Secondary Node. The Master Node is connected to 5GC while the Secondary Node is connected…
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…
In 5G New Radio (NR), a “time slot” refers to a discrete unit of time within the radio frame structure used for the transmission and reception of data. Time slots are an essential concept in wireless communication systems, including 5G…
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…
During the NR Registration procedure, UE will include its support for Dual Active Protocol stack (DAPS) Handover in the UE Capability message. If there is no support for DAPS from UE, then the network will not configure DAPS handover for…
IN 5G-NR UE’s operating in RRC_Connected mode can be categorized into two types of mobilities Cell level mobility and Beam Level Mobility which are network controlled procedures. In Release-15 3GPP has introduced the inter-gNB handover procedure which is similar to…
N26 interface is an inter-Core Network interface between the MME and 5GS AMF in order to enable interworking between EPC and the NG core. Inter-RAT Mobility procedures involving mobility between LTE-EPC and 5G-NR-5GS utilize the N26 interface which enables the…