PBCH Payload                        bits    MSB
            ├─BCCH-BCH-Message                  0       
            │ └─message                         1       0
            │   ├─mib                           0
            │   │ ├─systemFrameNumber           6       1,2,3,4,5,6
            │   │ ├─subCarrierSpacingCommon     1       7
            │   │ ├─ssb-SubcarrierOffset        4       8,9,10,11
            │   │ ├─dmrs-TypeA-Position         1       12
            │   │ ├─pdcch-ConfigSIB1            0
            │   │ │ ├─controlResourceSetZero    4       13,14,15,16
            │   │ │ └─searchSpaceZero           4       17,18,19,20
            │   │ ├─cellBarred                  1       21
            │   │ ├─intraFreqReselection        1       22
            │   │ └─spare                       1       23
            │   └─messageClassExtension         0
            │
            ├─A     4th LSB of SFN                      24
            ├─A+1   3rd LSB of SFN                      25
            ├─A+2   2nd LSB of SFN                      26
            ├─A+3   1st LSB of SFN                      27
            ├─A+4   half frame bit                      28
            ├─A+5   FR1: MSB of kSSB,                   29
            │       FR2: 6th bit of candidate SSB index
            ├─A+6   FR1: reserved,                      30
            │       FR2: 5th bit of candidate SSB index
            └─A+7   FR1: reserved,                      31
                    FR2: 4th bit of candidate SSB index