公开(公告)号：US09531511B2

公开(公告)日：2016-12-27

申请号：US14875279

申请日：2015-10-05

Applicant: SONY CORPORATION

Inventor： Andreas Schwager ,  Weiyun Lu ,  Lothar Stadelmeier

IPC: H04B1/00 ,  H04L5/00 ,  H04L27/26 ,  H04B3/54 ,  H04L25/02

CPC classification number: H04L5/0023 ,  H04B3/542 ,  H04L5/0044 ,  H04L25/0272 ,  H04L25/0292 ,  H04L27/2626 ,  H04L27/2647

Abstract: A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable.

公开(公告)号：US09525442B2

公开(公告)日：2016-12-20

申请号：US14766586

申请日：2014-02-11

Applicant: SONY CORPORATION

Inventor： Lothar Stadelmeier ,  Jan Zoellner ,  Joerg Robert ,  Philipp Hasse

IPC: H04B1/04 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04B1/0475 ,  H04L25/03828 ,  H04L27/2626

Abstract: An OFDM encoding apparatus for encoding OFDM symbols into an OFDM signal includes: a pre-distortion unit that pre-distorts OFDM symbols into pre-distorted OFDM symbols, the OFDM symbols including payload data and each being carried on multiple OFDM subcarriers; an OFDM generator that generates an OFDM signal from the pre-distorted OFDM symbols by OFDM modulating the pre-distorted OFDM symbols; and a filter that filters the OFDM signal to obtain a filtered OFDM signal, the filter being configured to attenuate the spectrum of the OFDM signal in frequency bands outside the signal bandwidth of the OFDM signal by applying a filter transfer function to the OFDM signal. The pre-distortion unit is configured to apply a pre-distortion transfer function equal to the inverse of the filter transfer function to the OFDM symbols.

Abstract translation: 用于将OFDM符号编码为OFDM信号的OFDM编码装置包括：预失真单元，其将OFDM符号预失真为预失真的OFDM符号，所述OFDM符号包括有效载荷数据，并且每个OFDM符号在多个OFDM子载波上承载; OFDM发生器，其通过对所述预失真的OFDM符号进行OFDM调制从所述预失真的OFDM符号生成OFDM信号; 以及滤波器，对所述OFDM信号进行滤波以获得经滤波的OFDM信号，所述滤波器被配置为通过对所述OFDM信号应用滤波器传递函数来衰减所述OFDM信号的信号带宽外的频带中的OFDM信号的频谱。 预失真单元被配置为将等于滤波器传递函数的逆的预失真传递函数应用于OFDM符号。

公开(公告)号：US09300499B2

公开(公告)日：2016-03-29

申请号：US14711050

申请日：2015-05-13

Applicant: SONY CORPORATION

Inventor： Nabil Sven Loghin ,  Jan Zoellner ,  Joerg Robert ,  Lothar Stadelmeier

IPC: H04B7/02 ,  H04L1/02 ,  H04L25/03 ,  H04L27/26 ,  H04B1/04

CPC classification number: H04L25/03006 ,  H04B1/0475 ,  H04L25/03343 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/265 ,  H04L2025/03414

Abstract: The present invention relates to a transmission apparatus and a corresponding transmission method for transmitting data within a multi-carrier transmission system comprising two or more transmission apparatuses that are configured to transmit the same data. To avoid destructive interferences a transmission apparatus (10) is proposed comprising a signal input (30) configured to receive multi-carrier signals (S(k)) carrying data to be transmitted, a distortion unit (32) configured to distort said multi-carrier signals (S(k)) by use of a distortion function (P(k)) including a phase parameter for differently modulating the phase of said multi-carrier signals (S(k)), wherein said distortion function (P(k)) is different from distortion functions used by other transmission apparatuses, whose coverage areas overlap with the coverage area of the present transmission apparatus, by using a phase parameter that is different from the phase parameter used by said other transmission apparatuses, and a transmission unit (34) configured to transmit said distorted multi-carrier signals as transmission signal (Tx(k)).

Abstract translation: 本发明涉及一种在多载波传输系统内发送数据的发送装置和相应的发送方法，该多载波传输系统包括被配置为发送相同数据的两个或多个发送装置。 为了避免破坏性干扰，提出了一种发送装置（10），其包括被配置为接收承载要发送的数据的多载波信号（S（k））的信号输入（30），失真单元（32） 使用包括用于不同地调制所述多载波信号（S（k））的相位的相位参数的失真函数（P（k））的载波信号（S（k）），其中所述失真函数 ））不同于其覆盖区域与本发送装置的覆盖区域重叠的其他发送装置使用的失真函数，通过使用与所述其他发送装置使用的相位参数不同的相位参数，以及发送单元 （34），被配置为发送所述失真的多载波信号作为发送信号（Tx（k））。

公开(公告)号：US09191068B2

公开(公告)日：2015-11-17

申请号：US14292023

申请日：2014-05-30

Applicant: SONY CORPORATION

Inventor： Lothar Stadelmeier ,  Andreas Schwager ,  Daniel Schneider

IPC: H04B3/00 ,  H04L25/00 ,  H04B3/54 ,  H04B3/32 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00

CPC classification number: H04B3/54 ,  H04B3/32 ,  H04B3/46 ,  H04B2203/5425 ,  H04B2203/5466 ,  H04L1/0009 ,  H04L1/0618 ,  H04L5/0044

Abstract: A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method.

Abstract translation: 一种用于通过电力线网络传输信号的方法，其中在所述电力线网内至少一个发射机和至少一个接收机经由至少两个信道进行通信，每个信道包括至少一个发射机的相应馈送端口和相应的接收端口 所述至少一个发射器和发射器包括至少两个馈送端口。 该方法：确定每个信道的信道特性; 基于信道特性应用馈送端口选择标准; 并且基于所述馈送端口选择标准，选择所述至少两个馈送端口中的排除馈送端口，其中在进一步通信期间不使用所述排除馈送端口。 相应的电力线通信调制解调器可以实现该方法。

公开(公告)号：US08982985B2

公开(公告)日：2015-03-17

申请号：US13676952

申请日：2012-11-14

Applicant: Sony Corporation

Inventor： Lothar Stadelmeier ,  Andreas Schwager

IPC: H04L27/28 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0058

Abstract: A transmitting apparatus is provided for transmitting signals in a multi carrier system, in which pilot signals and data mapped on frequency carriers are transmitted in a transmission bandwidth, wherein a part of the transmission bandwidth is not used to transmit signals. The apparatus includes a pilot signal mapper for mapping pilot signals onto selected frequency carriers according to a pilot pattern that is adapted for a channel estimation in a corresponding receiving apparatus, the pilot pattern enabling a channel estimation for frequency carriers next to the part of the transmission bandwidth that is not used to transmit signals.

Abstract translation: 提供一种用于在多载波系统中发送信号的发送装置，其中在传输带宽中发送导频信号和映射在频率载波上的数据，其中传输带宽的一部分不用于发送信号。 该装置包括导频信号映射器，用于根据导频模式将导频信号映射到所选择的频率载波上，所述导频模式适用于对应的接收装置中的信道估计，所述导频模式能够对传输部分之后的频率载波进行信道估计 不用于传输信号的带宽。

公开(公告)号：US20140369432A1

公开(公告)日：2014-12-18

申请号：US14476386

申请日：2014-09-03

Applicant: SONY CORPORATION

Inventor： Andreas SCHWAGER ,  Weiyun Lu ,  Lothar Stadelmeier

IPC: H04L5/00 ,  H04B3/54

CPC classification number: H04L5/0023 ,  H04B3/542 ,  H04L5/0044 ,  H04L25/0272 ,  H04L25/0292 ,  H04L27/2626 ,  H04L27/2647

Abstract: A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable.

Abstract translation: 一种用于多载波MIMO通信系统（例如，使用自适应OFDM的预编码空间复用MIMO通信系统）中的位解复用装置，包括多载波MIMO发射机和多载波MIMO接收机。 多载波MIMO发射机包括解复用器和符号映射器单元，其接收输入比特流并生成多个符号流，每个符号流与不同的传输信道相关联并且包括多个数据符号，每个数据符号归因于不同的 载体 基于符号流生成至少两个多载波调制信号的一个或多个多载波调制器; 以及分别发射所述至少两个多载波调制信号的至少两个发射端口，其中每个传输信道的数据吞吐速率是单独变化的。

公开(公告)号：US20140139747A1

公开(公告)日：2014-05-22

申请号：US14166348

申请日：2014-01-28

Applicant: Sony Corporation

Inventor： Arthur Simon Waller ,  Lothar Stadelmeier ,  Dietmar Schill ,  Antonio Alarcon Gonzalez

IPC: H04L27/26 ,  H04N21/4385

CPC classification number: H04L27/2626 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0092 ,  H04L25/0226 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2666 ,  H04N5/4401 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4383 ,  H04N21/4385

Abstract: A digital signal transmitter in which multiple data streams are each transmitted by modulation of a respective frequency band within one of a group of frequency channels, the frequency bands each occupying no more than a predetermined maximum bandwidth less than or equal to the channel width; comprises means for transmitting at respective frequency positions within each frequency channel, one or more instances of band information defining the frequency bands corresponding to all of the data streams carried within that frequency channel, the one or more instances being arranged so that any portion of the frequency channel equal in extent to the predetermined maximum bandwidth includes at least one instance of the band information.

Abstract translation: 一种数字信号发送器，其中通过调制一组频道中的一个频带内的各频带来发送多个数据流，每个频带占用不超过预定最大带宽小于或等于信道宽度; 包括用于在每个频率信道内的各个频率位置发送频带信息的一个或多个实例，所述频带信息定义与所述频率信道内携带的所有数据流相对应的频带，所述一个或多个实例被布置为使得 频率信道在预定的最大带宽范围内等于包括频带信息的至少一个实例。