which the demodulation data is to be written to the location number calculated by the deinterleaver unit application_number US 201113995812 A description a preferred embodiment of the present invention is explained below with reference to the accompanied drawings fig1 is a block diagram showing a configuration example of a receiver according to an embodiment of the present invention being used in a mobile phone for example this receiver includes a pcfich demap unit 11 a phich demap unit 12 a pdcch demap unit 13 and a pdcch cyclic deshift and deinterleave unit 14 the pcfich demap unit 11 outputs an reg number of an reg where pcfich is mapped the phich demap unit 12 outputs an reg number of an reg where phich symbol quadruplet is mapped the pdcch demap unit 13 outputs an reg number of an reg where pdcch is mapped the pdcch cyclic deshift and deinterleave unit 14 carries out a cyclic deshift and deinterleaving for a demodulation datum reg number to be obtained by the pdcch demap unit 13 the pcfich demap unit 11 and the phich demap unit 12 output a parameter for demapping pdcch to the pdcch demap unit 13 a memory unit 21 an internal parameter storing unit 22 an reg counter 23 a comparator 24 a counter 25 an reg pair unit 26 and a control unit 27 are provided in the pdcch demap unit 13 the pdcch demap unit 13 is invoked each.