Patent ID: 7583586
Filing Date: 2009-09-01
Classification: H04B,H04J,H04L

Abstract:
1. A method for transmitting a reference signal for identification of each cell in a communication system including a plurality of cells each of which is identified by a cell identifier, the method comprising the steps of: in response to input of the cell identifier, generating, by a block code encoder, a block code corresponding to the cell identifier using a predetermined block code generator matrix; generating a first part sequence by interleaving, by an interleaver, the block code according to at least one interleaving scheme and performing, by an adder, an exclusive OR operation on the interleaved block code; selecting a second part sequence corresponding to the cell identifier and from among predetermined sequences considering Peak-to-Average Power Ratio (PAPR) reduction; generating, by a combiner, a reference signal of a frequency domain by using the first part sequence and the second part sequence; converting, by a transmitter, the reference signal of the frequency domain to a reference signal of a time domain through an Inverse Fast Fourier Transform (IFFT) operation; and transmitting, by the transmitter, the reference signal of the time domain in a over a reference signal transmission interval, wherein the reference signal of the frequency domain is defined by: where P