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PCFICH Verilog coding
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PCFICH always in the frame of the first OFDM symbol. Its exact location depends on system identification and community physical PCI bandwidth. LTE PCFICH size is 2bit, which is hosted by CFI (Control Format Indicatior), used to indicate the PDCCH occupied by the number of symbols in the subframe. For larger bandwidth system, PDCCH for 1 to 3 the number of symbols, for low bandwidth system, PDCCH is 2 to 4 the number of symbols, this is because each symbol on the relatively small number of subcarriers, so you need more symbols to carry control information in the PDCCH. Hosted by CFI information is very important, in fact, divided each child frame control signaling in the border area and the data area. An OFDM symbol, or as PDCCH, or as a data channel, LTE OFDM symbol does not support a mixed in. PCFICH (32,2) blocks of encoded information bits, using QPSK modulation, modulation is 16 symbols that is mapped to the 4
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