método, sistema, estação base e dispositivo de terminal móvel para comunicação colaborativa

摘要

A method, a system, a Base Station (BS) and a mobile terminal device for collaborative communication are disclosed, so as to multiplex open-loop and closed-loop users and improve a utilization rate of system frequency spectrum. The method includes: receiving Channel State Information (CSI) sent by a user, in which the CSI is CSI of a Line of Sight (LOS) signal of the user obtained by eliminating CSI of a multi-path signal (11); obtaining CSI of a closed-loop user having a channel that is orthogonal to a channel of the user (12); performing pre-coding calculation by using the CSI of the LOS signal of the user and the CSI of the closed-loop user (13); and sending communication data to the user by using a result of the pre-coding calculation (14).