| 摘要 |
PROBLEM TO BE SOLVED: To allow a user apparatus to execute interference rejection combining in a non-orthogonal multiaccess and suitably process a radio signal including a plurality of non-orthogonal signals.SOLUTION: The user apparatus receives a radio signal in which a plurality of non-orthogonal signals are mixed from a base station. The user apparatus recognizes a parameter related to a position of the user apparatus on the basis of information transmitted from the base station. When the user apparatus is located in a cell area end of the base station, a demodulation part in the user apparatus demodulates the radio signal in which an interference signal component is suppressed by an interference rejection combining processing part as a signal to the user apparatus and a non-orthogonal cancel part in the user apparatus does not operate. When the user apparatus exists in the cell area but is not located in the cell area end, the interference rejection combining processing part suppresses the interference signal component in the non-orthogonal signal outputted from a non-orthogonal signal cancel part until the demodulation part demodulates the signal to the user apparatus, and the demodulation part demodulates the non-orthogonal signal in which the interference signal component is suppressed. |
