Patent ID: 8937915
Filing Date: 2015-01-20
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A base station apparatus comprising: a transmitter configured to transmit, to a mobile station, control information related to a sequence in one of multiple groups, into which sequences for each of multiple sequence lengths having at least two different lengths are divided; and a receiver configured to receive a reference signal, which is generated using the sequence in one of the multiple groups based on the control information and which is transmitted from the mobile station, wherein each of the multiple groups contains a respective predefined number of sequence(s), and each respective predefined number depends on one of the sequence lengths, and wherein a first respective predefined number of sequence(s) contained in a first group of the multiple groups into which sequences having a first sequence length are divided is less than a second respective predefined number of sequences contained in a second group of the multiple groups into which sequences having a second sequence length are divided where the first sequence length is less than a threshold value and the second sequence length is greater than or equal to the threshold value.