公开(公告)号：US09386569B2

公开(公告)日：2016-07-05

申请号：US14464238

申请日：2014-08-20

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Yi Song ,  Neng Wang ,  Chuandong Li

IPC: H04W4/00 ,  H04L12/28 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04W72/0406 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L5/0046 ,  H04L27/0008 ,  H04L27/2614 ,  H04L27/2636

Abstract: In general, according to an embodiment, a wireless transmitter includes a plurality of coding and modulation modules to apply corresponding coding and modulation algorithms to input information blocks. A discrete Fourier transform (DFT) precoder applies DFT processing to outputs of the coding and modulation modules, and an inverse fast Fourier transform (IFFT) module receives a DFT output of the DFT precoder, which is mapped to different subcarriers according to the resource allocation indicated by the base station, and applies IFFT processing to the DFT output. An output processing stage produces output signals based on the output of the IFFT module to transmit wirelessly to a wireless receiver. In a different implementation, the outputs of the coding and modulation modules can be provided to an IFFT module to produce IFFT-processed output information.

Abstract translation: 通常，根据实施例，无线发射机包括多个编码和调制模块，以将相应的编码和调制算法应用于输入信息块。 离散傅立叶变换（DFT）预编码器对编码和调制模块的输出应用DFT处理，并且快速傅里叶逆变换（IFFT）模块接收DFT预编码器的DFT输出，其根据资源分配被映射到不同的子载波 由基站指示，并对DFT输出应用IFFT处理。 输出处理级根据IFFT模块的输出产生无线传输到无线接收器的输出信号。 在不同的实现中，编码和调制模块的输出可以被提供给IFFT模块以产生经IFFT处理的输出信息。

公开(公告)号：US20140355554A1

公开(公告)日：2014-12-04

申请号：US14464238

申请日：2014-08-20

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Yi Song ,  Neng Wang ,  Chuandong Li

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L5/0046 ,  H04L27/0008 ,  H04L27/2614 ,  H04L27/2636

Abstract: In general, according to an embodiment, a wireless transmitter includes a plurality of coding and modulation modules to apply corresponding coding and modulation algorithms to input information blocks. A discrete Fourier transform (DFT) precoder applies DFT processing to outputs of the coding and modulation modules, and an inverse fast Fourier transform (IFFT) module receives a DFT output of the DFT precoder, which is mapped to different subcarriers according to the resource allocation indicated by the base station, and applies IFFT processing to the DFT output. An output processing stage produces output signals based on the output of the IFFT module to transmit wirelessly to a wireless receiver. In a different implementation, the outputs of the coding and modulation modules can be provided to an IFFT module to produce IFFT-processed output information.

Abstract translation: 通常，根据实施例，无线发射机包括多个编码和调制模块，以将相应的编码和调制算法应用于输入信息块。 离散傅立叶变换（DFT）预编码器对编码和调制模块的输出应用DFT处理，并且快速傅里叶逆变换（IFFT）模块接收DFT预编码器的DFT输出，其根据资源分配被映射到不同的子载波 由基站指示，并对DFT输出应用IFFT处理。 输出处理级根据IFFT模块的输出产生无线传输到无线接收器的输出信号。 在不同的实现中，编码和调制模块的输出可以被提供给IFFT模块以产生经IFFT处理的输出信息。