PCFICH (LTE-Advanced)
is the Physical Control Format Indicator Channel and specifies how many OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS. symbols at the beginning of a subframe contain PDCCH Physical Downlink Control Channel. PCFICH Physical Control Format Indicator Channel is transmitted on the first OFDM symbol of a subframe and is transmitted only in subframes that contain symbols allocated to PDCCH.
The modulation type is QPSK Quadrature phase shift keying.
See Section 6.7 of 3GPP TS Technical Specification 36.211 for more information about PCFICH.
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