7.1.8 Storing soft channel bits
36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS
For FDD, TDD and FDD-TDD, if the UE is configured with more than one serving cell or if the UE is configured with a SCG, then for each serving cell, for at least transport blocks, upon decoding failure of a code block of a transport block, the UE shall store received soft channel bits corresponding to a range of at least ,…,, where:
,
, 
, , , ,and are defined in Clause 5.1.4.1.2 of [4].
MDL_HARQ is the maximum number of DL HARQ processes.
If the UE is configured with a SCG
– 
is the number of configured serving cells across both MCG and SCG.
else
– is the number of configured serving cells.
is the maximum "Total number of soft channel bits" [12] among all the indicated UE categories [11] of this UE.
In determining k, the UE should give priority to storing soft channel bits corresponding to lower values of k. shall correspond to a received soft channel bit. The range ,…,may include subsets not containing received soft channel bits.
