Category: Cellular Communication
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Your phone needs to check CSI-RS signal regularly to keep track of the channel conditions. Just like a train schedule tells you exactly when your train arrives, a smart timing offset tells your phone when to check the CSI-RS signal. Let us explore that concept a bit.
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Your phone locates PDCCH in the vast ocean of Time and Frequency using Search Space and CORESET. Welcome to the world of treasure hunt.
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Uplink Power Control adjusts your phone’s transmit power so that the base station receives signals at just the right strength. Think of it like adjusting your voice in a conversation—if you’re close, you speak softly; if you’re far away or in a noisy room, you speak louder. Let’s try to understand this concept in a…
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Link adaptation is network adjusting data rates to your phone based on your data requirements and channel conditions. Let’s talk about that.
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RACH procedure is like a polite way for your phone to get the 5G tower’s attention and request to start communicating. RACH procedure is the very first handshake between your phone and the cell tower before the real communication begins. Let’s break down this connection process in a fun way using analogies!
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In this post I will explain the major physical entities in cellular communication, in an easy to understand way. Understanding it helps you appreciate how these systems work together to keep you connected.