Patent ID: 8953544
Filing Date: 2015-02-10
Classification: H04B,H04J,H04L

Abstract:
1. A base station apparatus comprising: a transmitter configured to transmit data to a mobile station apparatus and transmit, to the mobile station apparatus, control information related to the data on a control channel element (CCE); and a receiver configured to receive a reference signal sequence, which is defined by one of plural cyclic shift values, the reference signal sequence being spread with an orthogonal sequence, which is one of plural orthogonal sequences and with which the one of plural cyclic shift values is associated, and transmitted from the mobile station apparatus, wherein the one of plural cyclic shift values and the one of plural orthogonal sequences are determined from an index of a resource associated with a CCE number, and a different cyclic shift value is associated with each of two of the plural orthogonal sequences.