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Browser-based, spec-referenced simulations for LTE/NR RAN engineering — live parameters, no MATLAB or cloud lab required.
Pick a topic to launch its live simulation.
Move the CU/DU split from RRC down to RF and see fronthaul bandwidth and latency trade off.
Tune μ from 0–4 and watch subcarrier spacing, symbol timing and the 10 ms radio frame recompute live.
Set DL/UL slots and the special-slot symbol split and see the TDD pattern and guard period recompute.
Pick a channel bandwidth and SCS and see how many Resource Blocks NR actually transmits on.
Sweep candidate SSB beams inside a half-frame and see the burst set repeat on its periodicity timer.
Set antenna ports and density and see the RE overhead and mapping pattern change.
Set type, mapping and additional positions and watch DMRS symbol overhead move.
A real Monte-Carlo simulation in your browser: modulate, add noise, demodulate, count errors, trace the BER curve.
See the constellation, Gray-coded bit mapping, and required SNR for each modulation order.
Walk a transport block through CRC attach, base-graph selection, code-block segmentation and lifting size.
Compute real Bhattacharyya bit-channel reliabilities and see which positions carry information vs frozen bits.
Turn an MCS index and PRB allocation into an exact Transport Block Size, step by step.
Move the SINR and watch the scheduler pick a matching CQI, modulation and code rate.
Set raw powers and see RSRP, RSRQ and an estimated SINR combine into a quality band.
Set the round-trip time and process count and see whether HARQ keeps the transmission pipe full.
Click through RRC_IDLE, RRC_INACTIVE and RRC_CONNECTED to see triggers, cost and typical timers.
Compare 4-step vs. 2-step RACH message flow and watch preamble power ramp on repeated attempts.
Move the UE between two cells and see exactly where the A3 measurement report fires and where the handover executes.
Generate a random multipath channel, estimate it from sparse pilots, and compare ZF vs. MMSE equalizer noise enhancement.
Steer a uniform linear array and watch beamwidth narrow, gain rise, and grating lobes appear.
Combine layers, modulation, numerology and overhead into the theoretical peak data rate ceiling.
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