Cooperative Spatiotemporal Block Coding System Using Orthogonal Code and Its Method

摘要

PURPOSE: A cooperative space time block coding transmission system with an orthogonal code, and a method thereof are provided to improve the performance of an entire wireless communication system by separating a desirable signal from an interference signal in a mobile station. CONSTITUTION: A base station transmits to an MS(Mobile Station) the information on an orthogonal code for the application to a transmission target signal(302). The base station encodes an orthogonally encoded signal(304a), and transmits the signal to an RS(Relay Station)(304b). Each relay station restores a signal based on channel information(305), and the base station divides the signal by predetermined bit unit. Each base station decodes an original signal by multiplying the stored signal with the orthogonal code(307), and a first base station removes an interference signal(308).