| 发明名称 | Wireless communication device and sensing method | ||
| 摘要 | A wireless communication device which includes: a sensing antenna for sensing communication by a primary user; a first transmission antenna; a second transmission antenna; first transmitting unit that generates a transmission signal to be transmitted from the first transmission antenna; 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; digital signal processing unit that suppresses the transmission signal from the first transmission antenna, from a received signal of the sensing antenna; and sensing unit that detects communication by a primary user on the basis of the received signal of the sensing antenna that has been processed by the digital signal processing unit. While performing communication as a secondary user, the device detects communication by a primary user. Hence, constant sensing is enabled in a cognitive radio communication device. | ||
| 申请公布号 | US9319078(B2) | 申请公布日期 | 2016.04.19 |
| 申请号 | US201314650654 | 申请日期 | 2013.12.09 |
| 申请人 | TOYOTA INFOTECHNOLOGY CENTER CO., LTD. | 发明人 | Ihara Yutaka;Altintas Onur;Kremo Haris;Tanaka Hideaki |
| 分类号 | H04B15/02;H04B1/04;H04B1/10;H04B1/54;H04W16/14;H04W88/02;H04L1/00;H04L27/00 | 主分类号 | H04B15/02 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 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. | ||
| 地址 | Tokyo JP | ||