Space division duplex communication device and method

The present application discloses an apparatus and a space division duplex communication method. Wherein the communication device comprises at least a first passage, a second passage, and at least the first and second channels respectively independent at least two antennas, the method comprising the steps of: obtaining a communication device and a channel state information between the terminal ; connecting a first antenna and a first passage, a second passage and connects the second antenna; channel state information to select a first antenna and a second antenna and a second channel corresponding to the first path from the corresponding antenna according to; at the same time and frequency resources, using a first transmit antenna a first channel and a second channel signal and the second antenna wire is connected and a reception signal is connected, or is connected with a first passage and a first antenna reception signals and the second channel and the second antenna connected to the transmitted signal.