Section: 5.5.2.1.2 Mapping to physical resources
Content: For each antenna port used for transmission of the PUSCH, the sequence shall be multiplied with the amplitude scaling factor and mapped in sequence starting with to the resource blocks. - when either - the higher-layer parameter ul-DMRS-IFDMA is set and the most recent uplink-related DCI contains the Cyclic Shift Field mapping table for DMRS bit field which is set to 1 to indicate the use of Table 5.5.2.1.1-3, or - the Cyclic Shift Field mapping table for DMRS bit field is set to 1 in the most recent uplink-related DCI format 7 which indicates the use of Table 5.5.2.1.1-4, and - otherwise. If higher-layer parameter ul-DMRS-IFDMA is set and the most recent uplink-related DCI contains the Cyclic Shift Field mapping table for DMRS bit field which is set to 1 to indicate the use of Table 5.5.2.1.1-3, the mapping to resource elements , with for normal cyclic prefix and for extended cyclic prefix, in the subframe shall be in increasing order of first for all values of satisfying , then the slot number. The quantity is given by Table 5.5.2.1.1-3 using the cyclic shift field in the most recent uplink-related DCI. In case of slot-PUSCH, the mapping to resource elements , with for normal cyclic prefix, in the slot of the subframe where slot-PUSCH is transmitted shall be in increasing order of first for all values of , except if the Cyclic Shift Field mapping table for DMRS bit field is set to 1 in the most recent uplink-related DCI format 7, which indicates the use of Table 5.5.2.1.1-4. In this case the mapping to resource element shall be in increasing order of first only for values of satisfying . In case of subslot-PUSCH, the mapping to resource elements , in the subframe shall be in increasing order of first for all values of , except if the Cyclic Shift Field mapping table for DMRS bit field is set to 1 in the most recent uplink-related DCI format 7, which indicates the use of Table 5.5.2.1.1-4. In this case the mapping to resource element shall be in increasing order of first only for values of satisfying . The value of depends on the uplink subslot number and the DMRS-pattern field in the most recent uplink-related DCI, according to Table 5.5.2.1.2-1, or according to Table 5.5.2.1.2-2 in case of semi-persistent scheduling of subslot-PUSCH (i.e. higher layer patameter sps-ConfigUL-sTTI-r15 is configured, se TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [9]) and with a configured periodicity of 1 subslot (i.e. semiPersistSchedIntervalUL-STTI-r15 set to sTTI1). In case of subslot-PUSCH and semi-persistent scheduling with a configured periodicity longer than 1 subslot, the mapping shall start at symbol according to the first row of Table 5.5.2.1.2-2 (i.e. equivalent to a signalling of DMRS-pattern field set to '00'). In case no value of is defined for the uplink subslot number, and in case no valid starting symbol index (see table 5.3.4-1), no reference signal is transmitted associated with the uplink-related DCI format. Table 5.5.2.1.2-1: The quantity for subslot-PUSCH Table 5.5.2.1.2-2: The quantity for subslot-PUSCH for semi-persistent scheduling For all other cases, the set of physical resource blocks used in the mapping process and the relation between the index and the antenna port number shall be identical to the corresponding PUSCH transmission as defined in clause 5.3.4. The mapping to resource elements , with , or with according to Table 5.5.2.1.2-1 for subslot-PUSCH, for normal cyclic prefix and for extended cyclic prefix, in the subframe shall be in increasing order of first, then the slot number, except for slot-PUSCH and subslot-PUSCH where the reference signal is only mapped to the slot where the slot-PUSCH/subslot-PUSCH is transmitted). No DM-RS shall be transmitted in UpPTS if dmrsLess-UpPts is set to true. For BL/CE UEs, if uplink resource reservation is enabled for the UE as specified in [9], and the Resource reservation field in the DCI is set to 1, then in case of PUSCH transmission with associated with C-RNTI or SPS C-RNTI using UE-specific MPDCCH search space including PUSCH transmission without a corresponding MPDCCH, - In a subframe that is fully reserved as defined in clause 8.0 in [4], the demodulation reference signal transmission is postponed until the next BL/CE uplink subframe that is not fully reserved. - In a subframe that is partially reserved, the demodulation reference signal transmission in a SC-FDMA symbol that is reserved is dropped.