TERMINAL APPARATUS AND CONTROL CHANNEL DECODING METHOD

摘要

A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part allocates allocation information allocated to a PDCCH received from modulation parts to a particular one of a plurality of search spaces that is corresponding to a CCE aggregation size of the PDCCH. A placement part then places the allocation information in one of downstream line resources, reserved for the PDCCH, that is corresponding to the CCE of the particular search space to which the allocation information has been allocated. A radio transmission part then transmits an OFDM symbol, in which the allocation information has been placed, to the mobile station from an antenna.

主权项

1. A terminal apparatus comprising:
a receiver, which, in operation, receives a control information that is transmitted on one or more consecutive control channel elements (CCEs) from a base station apparatus; and circuitry, which, in operation, decodes the received control information in a search space, the search space being comprised of a plurality of CCEs that includes the one or more consecutive CCEs, the plurality of CCEs starting on a CCE that is determined from both a number of the one or more consecutive CCEs, and a total number of CCEs configured in a subframe and a CCE index of a first CCE of the one or more consecutive CCEs being associated with an uplink resource.