Patent ID: 9319078
Filing Date: 2016-04-19
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A wireless communication device, comprising: a sensing antenna for sensing communication by a primary user; a first transmission antenna; a second transmission antenna; a first transmitting unit that generates a transmission signal to be transmitted from the first transmission antenna; a second transmitting unit that generates a transmission signal to be transmitted from the second transmission antenna and that cancels, in the sensing antenna, a transmission signal from the first transmission antenna; a digital signal processing unit that suppresses the transmission signal from the first transmission antenna, from a received signal of the sensing antenna; and a sensing unit that detects communication by the primary user on the basis of the received signal of the sensing antenna that has been processed by the digital signal processing unit, wherein the digital signal processing unit supresses the transmission signal from the first transmission antenna by minimum mean square error estimation in which a recursive least squares algorithm is used.