Configure the radio stack

Set carriers, channel behavior, topology, traffic, and slice constraints. Export a schema-v1 Python config and a local run script for the Sionna 2.2.0 twin.

Sionna 2.2.0 target

The simulation runs on your machine, not in this browser.

Download the v4 code zip and unpack it.
Install its Python requirements as described in the README.
Download radio_config.py and run.sh here into the code folder.
Run bash run.sh. The script sets RADIO_CONFIG=./radio_config.py before starting the twin.

Carriers

One Sionna TR 38.901 model is created per carrier.

Propagation & transmit power

Scenario model and per-tier downlink power.

Propagation scenario

TX power dBm

Macro Pico Femto

Channel behavior

Runtime flags consumed by the twin channel module.

BLER target

Scenario & network

Schema identity and reference geometry for the twin topology layer.

Scenario name Seed Macro sites Sectors / site

Site spacing m ISD Small cells Small-cell placement Wraparound

Traffic & UE characteristics

Sionna assumes nothing about UEs—it provides PHY/channel only. All of these are twin-side inputs.

Number of UEs Trace CSV path optional

Mobility classes shares must total 100%

Class Share % Speed m/s

Handover

Hysteresis dB Time-to-trigger ms

Per-slice arrivals

eMBB inter-arrival slots eMBB packet bits URLLC inter-arrival slots URLLC packet bits

URLLC demand controls

Demand scale URTWIN_URLLC_SCALE Size override bits · URTWIN_URLLC_SIZE

mIoT: demand enters through the PRACH model, not direct packet arrivals.

Service slices

Latency, reliability, and minimum scheduler share for each service.

eMBB

Latency ms Reliability Minimum share %

URLLC

Latency ms Reliability Minimum share %

mIoT

Latency ms Reliability Minimum share %

Control loop

Decision timing and forecast reach consumed by the twin controller.

Budget decision ms Forecast horizon

Generated module

Preview updates as you edit.

Inspect radio_config.py