Patent ID: 9743410
Date: 2017-08-22
CPC Classifications: H04L,H04W,H05K

Claim:
1. A base station comprising: a downlink control signal generating section configured to generate a first downlink control information based on (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and a second downlink control information based on (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, wherein the second frequency block and the third frequency block are separated in frequency; a transmitter configured to transmit the first downlink control information and the second downlink control information to a user equipment; and a receiver configured to receive (1) a first reference signal comprising a first reference signal sequence having a first sequence length corresponding to a first bandwidth of the first frequency block, in a case in which the first downlink control information is generated based on the first uplink allocation information, and (2) a second reference signal comprising a second reference signal sequence having a second sequence length corresponding to a second bandwidth, which is a summation of a third bandwidth of the second frequency block and a fourth bandwidth of the third frequency block, in a case in which the second downlink control information is generated based on the second uplink allocation information.