From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis
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Simulation: Exploring LTE physical layer behavior
From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis
Simulation: Exploring LTE physical layer behavior
Now, let's simulate the same example using a 1.4 MHz bandwidth. On the right side, you can see we are considering FKD duplex mode, and here frequency is on the Y-axis, time is on the X-axis. Earlier, we understood how the synchronization signals and the broadcast channels are positioned. Now, let's take a closer look at other signals and channels, and how they're allocated within time and frequency grid. In the previous slide, we learned that there are different signals and channels, each serving a specific function, and that resources must be appropriately allocated to them. So let's now consider a test model, a model used by 3GPP for base station conformance testing. And this model helps define how many resources needs to be allocated for various signals and channels. also check if any boosting of the reference signals is being used. So in this case we are using a model 1.1 and we'll observe how the resources are distributed within this particular setup. Here we can see the PCFI CH…
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Contents
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LTE protocol stack: High-level overview2m 53s
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LTE resource grid: Time-frequency mapping1m 18s
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LTE frame structure: How radio resources are arranged6m 19s
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Cyclic prefix in LTE: Normal vs. extended2m 47s
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LTE physical layer (Layer 1) overview4m 32s
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Simulation: Exploring LTE physical layer behavior3m
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LTE Layer 1: Signals vs. channels49s
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PDCCH in LTE: DCI format overview1m 43s
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Call flow: Understanding DCI formats and UE identifiers2m 54s
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Simulation: Decoding and configuring PDCCH2m 30s
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PDSCH in LTE: Primary downlink data channel2m 46s
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Simulation: Evaluating PDSCH performance2m 40s
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PDSCH resource allocation computation2m 49s
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Computing throughput and data rates for PDSCH2m 45s
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Uplink control in LTE: PUCCH operations2m 37s
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