Transmitter apparatus, receiver apparatus, transmission method, and reception method

摘要

In a terminal (200), a transmission control unit (206) identifies candidate resources on the basis of setting information and determines, on the basis of a trigger signal, a mapping resource, in which a second type of reference signal is mapped, in candidate frequency unit groups constituting the candidate resources. Each of the candidate resources is constituted by a plurality of fundamental subframe groups that are arranged at first intervals. N constituent subframes constituting each of the fundamental subframe groups are arranged at second intervals narrower than the first intervals. Each of the candidate frequency units of each candidate frequency unit group is a frequency unit specified by a predetermined frequency hopping pattern in M frequency units in each constituent subframe.

主权项

1. A transmitter apparatus of a reference signal, comprising:
a reception section that receives setting information regarding a candidate resource to which a reference signal is mapped, in a physical layer; a specifying section that specifies the candidate resource on the basis of the setting information; a determination section that determines a mapping resource to which a reference signal is mapped on the basis of a trigger signal in a candidate frequency unit group forming the candidate resource; and a transmission section that maps a reference signal to the determined mapping resource and transmits the mapped reference signal, wherein the candidate resource includes a plurality of basic subframe groups disposed at a first interval, and N (where N is a natural number which is equal to or more than 2) constituent subframes forming each basic subframe group are disposed at a second interval shorter than the first interval, and each candidate frequency unit of the candidate frequency unit group is a frequency unit which is regulated by a predetermined frequency hopping pattern among M (where M is a natural number which is equal to or more than 2) frequency units of each constituent subframe.