Section: 5.4A.5 Mapping to physical resources
Content: The block of complex-valued symbols shall be multiplied with the amplitude scaling factor in order to conform to the transmit power specified in Clause 5.1.2.1 of TS 36.213[ Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures ]  [4], and mapped in sequence starting with to resource elements. SPUCCH uses one or more resource block in the frequency domain and is mapped to either a slot or a subslot in the time domain. Within the physical resource block(s) used for transmission, the mapping of to resource elements on antenna port and not used for transmission of reference signals shall be in increasing order of first , then . The starting symbol for each subslot number is provided by Table 5.4A.4.5-1 for subslot-SPUCCH. For slot-SPUCCH the starting symbol is for the slot the SPUCCH is transmitted in. Table 5.4A.5-1: Starting symbol for subslot-SPUCCH mapping The relation between the index and the antenna port number is given by Table 5.2.1-1. The physical resource blocks () within which the transmission of SPUCCH is carried out in slot depends on the SPUCCH format and whether frequency hopping is enabled or not. In case of slot-SPUCCH format 1, 1a, 1b and frequency hopping disabled, the PRB used is determined as described in clause 5.4.3 for PUCCH format 1, 1a, 1b. In case of slot-SPUCCH format 3, the PRB used is given by For the other SPUCCH formats, it is determined by Table 5.4A.5-2, Table 5.4A.5-3 and Table 5.4A.5-4. Table 5.4A.5-2: for slot-SPUCCH format 1, 1a, 1b with frequency hopping enabled Table 5.4A.5-3: for slot-SPUCCH format 4 Table 5.4A.5-4: for subslot-SPUCCH format 1, 1a, 1b, 4 The variable depends on the SPUCCH format as defined in Table 5.4A.5-5. Table 5.4A.5-5: for SPUCCH In case of subslot-SPUCCH, there is a configuration restriction that each SPUCCH resource in the resource set, of up to four resources, , shall map to the same pair of PRBs () This restriction applies separately to each of n1SubslotSPUCCH-AN-List and sr-SubslotSPUCCH-Resource in TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [9]. In case of simultaneous transmission of sounding reference signal and SPUCCH when there is one serving cell configured, the shortened SPUCCH format shall be used where the last SC-FDMA symbol in the second slot of a subframe shall be left empty.