Patent ID: 9185713
Filing Date: 2015-11-10
Classification: H04J,H04L,H04W

Abstract:
1. An apparatus for transmitting a random access channel (RACH) signal including at least one preamble to a base station in a single carrier-frequency division multiple access (SC-FDMA) system, comprising: a preamble generator to provide a preamble of the RACH signal; a preamble transmit-parameter setter to receive the preamble from the preamble generator and to set a transmit-parameter of the preamble based on information related to a size of a cell covered by the base station, wherein the set transmit-parameter of the preamble includes at least one of a repetition number of the preamble, a position and duration of the guard time, wherein the preamble transmit-parameter setter increases the repetition number of the preamble or the duration of the guard time when the size of the cell is greater than a predetermined size and the preamble transmit-parameter decreases the repetition number of the preamble or the duration of the guard time when the size of the cell is less than a predetermined size; and a transmitter to transmit the preamble according to the set transmit-parameter of the preamble.