Section: 5.10.1 Downlink
Content: After a Semi-Persistent downlink assignment is configured, the MAC entity shall consider sequentially that the Nth assignment occurs in the TTI for which: - subframe SPS is used: - (10 * SFN + subframe) = [(10 * SFNstart time + subframestart time) + N * semiPersistSchedIntervalDL] modulo 10240. - slot or subslot SPS is used: - (10 * SFN * sTTI_Number_Per_Subframe + subframe * sTTI_Number_Per_Subframe + sTTI_number) = [(10 * SFNstart time * sTTI_Number_Per_Subframe + subframestart time * sTTI_Number_Per_Subframe + sTTIStartTimeDl) + N * semiPersistSchedIntervalDL-sTTI] modulo (10240 * sTTI_Number_Per_Subframe). Where SFNstart time, subframestart time and sTTIStartTimeDl are the SFN, subframe and sTTI_number, respectively, at the time the configured downlink assignment were (re-)initialised. The sTTI_Number_Per_Subframe is 6 when subslot TTI is configued and 2 when slot TTI is configured for short TTI operation. sTTI_number refers to the index of the short TTI, i.e., index of subslot or slot within the subframe. For BL UEs or UEs in enhanced coverage SFNstart time and subframestart time refer to SFN and subframe of the first transmission of PDSCH where configured downlink assignment was (re-)initialized.