METHOD AND SYSTEM FOR TRANSMITTING DATA IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SYSTEM

摘要

A method and system for transmitting data in a Multiple Input Multiple Output (MIMO) system are disclosed by the present invention. The method includes that: each base station obtains the information of an interfering resource user according to interactive user scheduling information, and obtains interfering information through measuring the channel information of an interfered user, and transmits it to the base station which the interfering resource user belongs to; the base station which the interfering resource user belongs to generates equivalent interfering information according to the received interfering information, and obtains the information about precoding on a time-frequency resource block using equivalent interfering information and the channel information from serviced users to the base station which the interfering resource user belongs to, and transmits it to the interfered user; the interfered user receives the information about precoding, obtains optimal precoding information, and regulates the transmitted signal using the optimal precoding information. By means of the information interactive mechanisms and data precoding mechanisms in the present invention, only the simple information interaction is needed between the base stations, so that most of the interference can be suppressed, and thereby transmission quality of uplink data can be improved.