Fixes for multiplexing pattern 3 operations in FR2

Francesco Manirequested to merge
issue1048 into develop

The standard (section 13 of 38.213) defines 3 SSB and CORESET 0 multiplexing patterns, which differ based on how the two channels are respectively positioned in time and frequency. For MUX pattern 3, SSB and CORESET 0 are transmitted in the same slot/symbols but on different frequencies. With CORESET 0 being directly above or below in frequency of SSBs, this means it does not start from symbol 0. This configuration is important for more than 8 SSBs (FR2) to accommodate SIB1 in the available DL slots (SIB1 in the same slot as its relative SSB), but it is impractical for anything else. So for any other channel except SSB, it is necessary to use a different common CORESET than CSET0 (namely commonControlResourceSet).

This MR attempts to fix an issue in case the CORSET being smaller than 48 PRBs, triggering 2 symbol CORESET configuration, but the BWP being larger than 48 PRBs so not taking into account the 2 symbol CORESET when configuring other channels, e.g. PDSCH.

Edited by Francesco Mani

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