5G Cell Search and System Acquisition Procedure
When a UE is switched on how does it knows to which cell it should camp on ? This is done by cell search and system acquisition procedure.…
Slot Based Scheduling, Mini Slot Scheduling and Cyclic Prefix
Slot based scheduling: In LTE if a sub frame is configured for DL or UL then all the symbols will be for DL or UL. But in 5G NR, the symbols…
5G NR Coreset and search space set
PDCCH is a downlink control channel. It carries control information DCI of PUSCH and PDSCH. In LTE PDCCH occupies the entire bandwidth in…
5G NR Coreset
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 Channels
5G NR Downlink Channels 5G NR Uplink Channels There are 3 different types of channels: 1. Logical Channels > Logical Channels are between…
5G NR DCI formats Introduction
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 and Resource Block
5G Resource Grid: A 5G Resource Grid is defined by one subframe (1ms) in time domain and full carrier bandwidth in frequency domain. Example:…
5G NR Numerology and Sub Carrier Spacing (SCS)
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…
5G NR Air Interface Introduction
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…
5G NR MAC Control Elements
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…