METHOD FOR COOPERATIVE AUTOMATIC REPEAT REQUEST USING ESTIMATED PHASE INFORMATION IN WIRELESS COMMUNICATION SYSTEM

摘要

The method for cooperative automatic repeat request using estimated phase information in wireless communication system is provided to solve the noncoherent (non-coherent) combination of signal by estimating the channel phase between the base station and the terminal. The relay terminal receives data broadcasted from the transmission terminal(401). By using the cyclic redundancy check information included in the received data, the relay terminal confirms the error of corresponding data(402). When error was generated from data, the relay terminal performs the process of receiving next data from the transmission terminal. When error was not generated in data, the relay terminal is converted to the co-operating the relay terminal(403). The relay terminal stores data without error(404). The co-operating the relay terminal receives the response message broadcasted by the base station(405). The co-operating relay terminal confirms the received response message.