Tag: 5G Physical Layer
5G NR Interview Questions for Layer 1
5G Interview Q&A This blog post is for 5G NR interview questions and answers. These 5G interview questions are useful for 5G technical round to get 5G engineer position in […]
Radio Link Monitoring in 5G – RLM
Introduction When a UE is connected to the network, it requires to continuously monitor the Radio link for reliable communication, the process is know as Radio Link Monitoring (RLM). The […]
5G NR Downlink HARQ Codebook
In 5G NR, 3GPP specification has defined HARQ Codebook to provide the feedback to base station for Downlink data transmission i.e., PDSCH Data. UE Sends the ACK/NACK for corresponding PDSCH […]
5G NR Quasi-Colocation Concept, Types and Application
Two signals transmitted from same antenna port shall experience the same radio channel, where as transmitting it from two different antenna ports shall experience different radio conditions. But there can […]
5G NR Antenna Ports – Logical and Physical Antenna Ports
In 5G NR or 4G LTE, Multiple Input-Multiple Output (MIMO) transmission is a key technology specifically in downlink. Signals transmitted from gNB/eNB via different antennas or signals subjected to different […]
5G NR- Physical Layer Timing Unit
In 5G, New Radio the basic time unit is represented by Tc and as per 3GPP TS38.211 can be expression by following equation: Where is subcarrier spacing and is FFT […]