According to the present invention, a wireless backhaul forming system comprises a first wireless signal processing device which generates a training signal including a plurality of beam forming signals and transmits radially, the generated training signal through a first multi-antenna; and a second wireless signal processing device which receives the training signal through a second multi-antenna, generates an index value of the strongest beam forming signal among the received beam forming signals, and performs feedback of the generated index value with the first multi-antenna, wherein the first wireless signal processing device forms a wireless backhaul link with more than one second wireless signal processing device.;COPYRIGHT KIPO 2014
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