METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING RANDOM ACCESS DATA AT ORTHOGONAL MULTIPLE ACCESS SYSTEM

摘要

A method and an apparatus for transceiving random access data in an orthogonal multiple access system are provided to stabilize an uplink transmission scheme by a channel state of a mobile terminal by supporting two sorts of carrier assignment schemes of a distributed subcarrier assignment scheme and a localized subcarrier assignment scheme. A method for transceiving random access data in an orthogonal multiple access system includes the steps of: randomly selecting a CAZAC(Constant Amplitude Zero Auto-Correlation) code to form the random access data(S610); selecting a carrier assignment scheme for mapping the CAZAC code(S620); mapping the CAZAC code into a subcarrier according to the selected subcarrier assignment scheme(S630); and fourier-transforming the subcarrier into which the CAZAC code is mapped, and transmitting the transformed subcarrier to a base station(S650). A localized subcarrier assignment scheme and a distributed subcarrier assignment scheme are selected for mapping the CAZAC code.