Section: 10.2.4.4 Mapping to resource elements
Content: The block of complex-valued symbols for each antenna port is transmitted in subframe 0 for frame structure type 1 or subframe 9 for frame structure type 2 during 64 consecutive radio frames starting in each radio frame fulfilling . The quantity for normal cyclic prefix. Define as the block of complex-valued symbols to be transmitted in subframe 0 for frame structure type 1 or subframe 9 for frame structure type 2 of radio frame , as , with for normal cyclic prefix, and where the scrambling sequence , is given by clause 7.2, and shall be initialized at the start of each radio frame with . The block of complex-valued symbols shall be mapped in sequence starting with to resource elements . The mapping to resource elements not reserved for transmission of reference signals shall be in increasing order of first the index, then the index . The first three OFDM symbols in a subframe shall not be used in the mapping process. For the purpose of the mapping, the UE shall assume cell-specific reference signals for antenna ports 0-3 and narrowband reference signals for antenna ports 2000 and 2001 being present irrespective of the actual configuration. The frequency shift of the cell-specific reference signals shall be calculated by replacing with in the calculation of in clause 6.10.1.2.