5G NR

In this chapter we shall learn about 5G NR CORESET. CORESET stands for Control Resource Set. It is used to decode PDCCH. WKT UE needs to…

5G NR Downlink Channels 5G NR Uplink Channels There are 3 different types of channels: 1. Logical Channels > Logical Channels are between…

DCI stands for Downlink Control Information. It is used to carry downlink control information for one or more cells with one RNTI. It also…

5G Resource Grid: A 5G Resource Grid is defined by one subframe (1ms) in time domain and full carrier bandwidth in frequency domain. Example:…

Before we understand 5G frame structure, let us look at the below diagram: From the above image we can see that, each frame will have number…

In this chapter we shall have a look at the important concepts that are required to understand 5G air interface. 5G will operate on 2…

In this chapter we shall look at the MAC CE (MAC Control Elements). In following chapters we shall discuss in-detail of some of the CEs. MAC…

In this chapter we shall learn, in how many ways a UE can request uplink grant to gNB. UE can request uplink grant in 3 different ways: 1.…

In this chapter we shall see in detail of 5G NR MAC PDU for RACH. After sending Msg1, UE will monitor PDCCH window and then PDCCH will…

Difference between 5G NR MAC PDU and LTE MAC PDU: From the above image we can infer below points: 1. A MAC PDU in LTE has a single header that…