公开(公告)号：US09042426B1

公开(公告)日：2015-05-26

申请号：US14411110

申请日：2013-06-20

申请人： DENSO CORPORATION

发明人： Munenori Matsumoto ,  Akira Takaoka ,  Toshihiro Wakamatsu

IPC分类号： H04B1/00 ,  H04B1/692 ,  H04W72/04

CPC分类号： H04B1/692 ,  B60R25/20 ,  G01S13/82 ,  H04B1/707 ,  H04B2201/70715 ,  H04W72/0453

摘要： A wireless communication system includes a mobile device carried by a user and an in-vehicle apparatus equipped to a vehicle and communicatively connected with the mobile device. The in-vehicle apparatus includes a transmission unit, a transmission control unit, a reception determination unit, and a position determination unit. The transmission unit transmits low-frequency band request signals generated by spread modulating transmission data with predetermined spreading factors. The transmission control unit controls the transmission unit to generate and transmit first and second request signals having first and second attainable ranges by spread modulation using first and second spreading factors, respectively. The reception determination unit performs reception determination to response signal transmitted from the mobile device in response to the request signal. The position determination unit specifies the first attainable range or the second attainable range as a mobile device position area in response to a reception determination result.

摘要翻译： 无线通信系统包括由用户承载的移动设备和配备到车辆并与移动设备通信地连接的车载设备。 车载装置包括发送单元，发送控制单元，接收确定单元和位置确定单元。 传输单元发送具有预定扩频因子的扩展调制发送数据生成的低频带请求信号。 发送控制单元控制发送单元，分别使用第一和第二扩频因子分别生成并发送具有第一和第二可实现范围的第一和第二请求信号，该扩展调制使用扩展调制。 接收确定单元响应于请求信号，对从移动设备发送的响应信号执行接收确定。 位置确定单元响应于接收确定结果将第一可达到范围或第二可达到的范围指定为移动设备位置区域。

公开(公告)号：US20150146762A1

公开(公告)日：2015-05-28

申请号：US14411110

申请日：2013-06-20

申请人： DENSO CORPORATION

发明人： Munenori Matsumoto ,  Akira Takaoka ,  Toshihiro Wakamatsu

IPC分类号： H04B1/692 ,  H04W72/04

CPC分类号： H04B1/692 ,  B60R25/20 ,  G01S13/82 ,  H04B1/707 ,  H04B2201/70715 ,  H04W72/0453

摘要： A wireless communication system includes a mobile device carried by a user and an in-vehicle apparatus equipped to a vehicle and communicatively connected with the mobile device. The in-vehicle apparatus includes a transmission unit, a transmission control unit, a reception determination unit, and a position determination unit. The transmission unit transmits low-frequency band request signals generated by spread modulating transmission data with predetermined spreading factors. The transmission control unit controls the transmission unit to generate and transmit first and second request signals having first and second attainable ranges by spread modulation using first and second spreading factors, respectively. The reception determination unit performs reception determination to response signal transmitted from the mobile device in response to the request signal. The position determination unit specifies the first attainable range or the second attainable range as a mobile device position area in response to a reception determination result.

摘要翻译： 无线通信系统包括由用户承载的移动设备和配备到车辆并与移动设备通信地连接的车载设备。 车载装置包括发送单元，发送控制单元，接收确定单元和位置确定单元。 传输单元发送具有预定扩频因子的扩展调制发送数据生成的低频带请求信号。 发送控制单元控制发送单元，分别使用第一和第二扩频因子分别生成并发送具有第一和第二可实现范围的第一和第二请求信号，该扩展调制使用扩展调制。 接收确定单元响应于请求信号，对从移动设备发送的响应信号执行接收确定。 位置确定单元响应于接收确定结果将第一可达到范围或第二可达到的范围指定为移动设备位置区域。