When the supported standard is 5G NR the status data interface is 40 bits with the fields shown in the following table for LDPC encode.
Field | Bits | Range | Description |
---|---|---|---|
39:38 | - | Reserved | |
mb | 37:32 | 4 to 46 | Number of parity bits as a multiple of Z (Z*mb), thereby controlling code rate |
id | 31:24 | 0 to 255 | External block identifier supplied through input |
23:15 | - | Reserved | |
hard_op | 14 | 1 | Hard output (fixed value) |
op | 13 | 1 | Encode operation (fixed value) |
12:9 | - | Reserved | |
bg | 8:6 | 0 to 4 | Base graph |
z_set | 5:3 | 0 to 7 | Base graph cyclic shift set |
z_j | 2:0 | 0 to 7 | Lifting factor (Z) j component 1 |
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