System Level (SYS)
This package provides differentiable system-level simulation functionalities for multi-cell networks.
It is based on aphysical layer abstraction thatcomputes the block error rate (BLER) from thePostEqualizationSINR. It further includes Layer-2functionalities, such aslink adaption (LA) for adaptive modulation and coding scheme(MCS) selection, downlink and uplinkpower control,anduser scheduling.Base stations can be placed on aspiral hexagonal grid,where wraparound is used for pathloss computation.

A good starting point for Sionna SYS is the availabletutorials page.