RADIO TRANSMITTER AND RADIO RECEIVER

摘要

A radio transmitter and a radio receiver which reduce the number of blind determinations of control signals while maintaining resource utilization efficiency.  A radio transmitter (100) includes a hash value calculating section (131) for calculating a hash value from a bit sequence indicating the device ID of each device or a transmission destination, and arranges a plurality of control channel signals in the order in which the calculated hash value of the each device increases or decreases monotonously in a frequency region which is the mapping resource range of the control channel signals.  A radio receiver (200) acquires the order in which the control channel signals arranged according to the hash value are arranged.  Even when the terminal ID included in the control channel signal decoded first is not the terminal ID of the radio receiver (200), the radio receiver (200) predicts the range in which the control channel signal including the terminal ID of the radio receiver (200) exists in the order by comparing the hash values obtained from both the terminal IDs with each other.