LTE Resource Grid and Throughput Calculator | LTE PRB, RE, PDCCH, PDSCH Visualizer
TechLTEWorld LTE Tool
LTE Resource Grid & Throughput Calculator
Visualize LTE PRB and Resource Element mapping like a real LTE frame grid, including PDCCH, PDSCH, PBCH, PSS, SSS, CRS, PCFICH and PHICH. Also estimate practical LTE downlink throughput from bandwidth, CFI, modulation and MIMO settings.
PRBBandwidth-based resource blocks
RESubcarrier × OFDM symbol
GridSubframe/slot/symbol visualizer
MbpsThroughput estimation
LTE Configuration Panel
Select LTE parameters and generate PRB, RE, control overhead and estimated PDSCH throughput.
For 50/75/100 PRB, use First/Center/Last 6 PRBs for fast browser rendering. Select “All PRBs” only when you really want the full tall grid.
Analysis Output
PRBs
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Subcarriers
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Symbols/Subframe
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Total RE/Subframe
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PDSCH RE/Subframe
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Estimated DL
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Change parameters to update analysis and grid.
LTE Radio Frame Resource Grid Visualizer
This is now a detailed Resource Element view. Rows represent subcarriers grouped by PRB. Columns represent OFDM symbols across 10 LTE subframes. Click any colored RE to understand the channel/signal.
PDCCHPDSCHCRSPBCHPSSSSSPCFICHPHICHTDD ULGuard
LTE Resource Grid
Click on the gridSelect any colored Resource Element to see what it represents.
LTE Learning Notes
PRBOne LTE PRB has 12 subcarriers in frequency and one slot in time. Normal CP has 7 OFDM symbols per slot.
REOne Resource Element is one subcarrier during one OFDM symbol. It is the smallest LTE physical-layer mapping unit.
PDCCHPDCCH carries DCI and occupies the first CFI symbols of a downlink subframe.
PDSCHPDSCH carries downlink user data and system information after control and reference-signal overhead.
PBCHPBCH carries MIB and is located around the center 6 PRBs in subframe 0.
PSS / SSSSynchronization signals help the UE identify cell timing and physical cell ID group.
Interview Questions from Selected LTE Configuration
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