公开(公告)号：EP1845677A2

公开(公告)日：2007-10-17

申请号：EP06253471.4

申请日：2006-06-30

申请人： Fujitsu Ltd.

发明人： Honda, Atsushi, c/o Fujitsu Limited ,  Nakaya, Yuuta, c/o Fujitsu Limited ,  Nakamura, Michiharu, c/o Fujitsu Limited

IPC分类号： H04L27/26

CPC分类号： H04L27/265 ,  H04L27/2633

摘要： The present invention provides a wireless terminal apparatus (10), including a reception unit (11, 12) for receiving a multi-carrier signal generated by applying an N-point (where N is a natural number) inverse fast Fourier transform (IFFT) to a plurality of sub-carriers to which transmission information for a plurality of wireless terminal apparatuses is allocated; a fast Fourier transform unit (15) for extracting a plurality of the sub-carriers from the multi-carrier signal; a thin-out unit (14), being placed at the front stage of the fast Fourier transform unit, capable of changing, from the N points, a sampling number of the multi-carrier signals which are digitalized; and a judgment unit (17) for discerning, based on sub-carrier allocation information accompanying the multi-carrier signal, whether or not the sub-carrier of another wireless terminal apparatus overlaps with that of the wireless terminal apparatus itself in the case of changing the sampling number from the N points, and determining a sampling number for the thin-out unit.

公开(公告)号：EP1845677A3

公开(公告)日：2012-10-17

申请号：EP06253471.4

申请日：2006-06-30

申请人： Fujitsu Ltd.

发明人： Honda, Atsushi, c/o Fujitsu Limited ,  Nakaya, Yuuta, c/o Fujitsu Limited ,  Nakamura, Michiharu, c/o Fujitsu Limited

IPC分类号： H04L27/26 ,  H04B1/00

CPC分类号： H04L27/265 ,  H04L27/2633

摘要： The present invention provides a wireless terminal apparatus (10), including a reception unit (11, 12) for receiving a multi-carrier signal generated by applying an N-point (where N is a natural number) inverse fast Fourier transform (IFFT) to a plurality of sub-carriers to which transmission information for a plurality of wireless terminal apparatuses is allocated; a fast Fourier transform unit (15) for extracting a plurality of the sub-carriers from the multi-carrier signal; a thin-out unit (14), being placed at the front stage of the fast Fourier transform unit, capable of changing, from the N points, a sampling number of the multi-carrier signals which are digitalized; and a judgment unit (17) for discerning, based on sub-carrier allocation information accompanying the multi-carrier signal, whether or not the sub-carrier of another wireless terminal apparatus overlaps with that of the wireless terminal apparatus itself in the case of changing the sampling number from the N points, and determining a sampling number for the thin-out unit.

摘要翻译： 本发明提供一种无线终端装置（10），包括：接收单元（11,12），用于接收通过应用N点（其中N是自然数）的快速傅立叶反变换（IFFT）产生的多载波信号， 分配给多个无线终端装置的发送信息的多个子载波; 用于从所述多载波信号中提取多个子载波的快速傅里叶变换单元（15）; 位于快速傅立叶变换单元的前级的薄型单元（14）能够从N点改变数字化的多载波信号的采样数; 以及判断单元（17），用于基于与所述多载波信号相关的副载波分配信息来辨别另一无线终端设备的子载波与所述无线终端设备本身的子载波是否与所述无线终端设备本身的子载波相互重叠 来自N个点的采样数，以及确定稀疏单元的采样数。