Patent ID: 9392470
Filing Date: 2016-07-12
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. An integrated circuit comprising: a spreading control that controls spreading of an acknowledgement or non-acknowledgement (ACK/NACK) signal with an orthogonal sequence, which is selected from a plurality of orthogonal sequences, the plurality of orthogonal sequences including more orthogonal sequences that render two values respectively corresponding to Nth symbol and Mth symbol of an ACK/NACK signal transmission slot in phase, than orthogonal sequence(s) that render said two values in opposite phases from each other; a transmission control that controls transmission of the spread ACK/NACK signal in the ACK/NACK signal transmission slot; and an arrangement control that controls arrangement of two reference signals (RS), which are produced by multiplying two reference signal sequences with values having opposite phases from each other, in the Nth symbol and the Mth symbol of a CQI signals transmission slot, and that controls arrangement of channel quality indicator (CQI) signals in symbols of the CQI signals transmission slot other than the Nth symbol and the Mth symbol, wherein the transmission control further controls transmission of the reference signals (RS) and the CQI signals arranged in the CQI signals transmission slot.