Method for transmitting a signal via a power line network, transmitter, receiver, power line communication modem and power line communication system
    11.
    发明授权
    Method for transmitting a signal via a power line network, transmitter, receiver, power line communication modem and power line communication system 有权
    通过电力线网络,发射机,接收机,电力线通信调制解调器和电力线通信系统发送信号的方法

    公开(公告)号:US08160162B2

    公开(公告)日:2012-04-17

    申请号:US12595265

    申请日:2008-07-28

    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。

    FRAME AND SIGNALLING PATTERN STRUCTURE FOR MULTI-CARRIER SYSTEMS
    12.
    发明申请
    FRAME AND SIGNALLING PATTERN STRUCTURE FOR MULTI-CARRIER SYSTEMS 有权
    多载波系统的帧和信号模式结构

    公开(公告)号:US20100041433A1

    公开(公告)日:2010-02-18

    申请号:US12499456

    申请日:2009-07-08

    CPC classification number: H04H20/72 H04J11/00

    Abstract: The present invention relates to a transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least two signaling patterns adjacent to each other in the frequency direction and at least one data pattern, said transmitting apparatus comprising frame forming means (59) adapted to arrange signaling data and pilot signals in each of said at least two signaling patterns in a frame, each signaling pattern having the same length, and to arrange data on frequency carriers of said at least one data pattern in a frame, transforming means (60) adapted to transform said signaling patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal. The present invention further relates to a corresponding transmitting method, a frame pattern for a multi carrier system and a receiving apparatus and method as well as a transmitting and receiving system and method.

    Abstract translation: 本发明涉及一种用于在多载波系统中基于帧结构发送信号的发送设备(54),每个帧包括在频率方向上彼此相邻的至少两个信令模式和至少一个数据模式, 所述发送设备包括帧形成装置(59),其适于在帧中的每个所述至少两个信令模式中布置信令数据和导频信号,每个信令模式具有相同的长度,并且将所述至少的频率载波上的数据排列 帧中的一个数据模式,适于将所述信令模式和所述数据模式从频域变换到时域的变换装置(60),以便产生时域传输信号;以及发送装置(61),适于发送所述 时域传输信号。 本发明还涉及相应的发送方法,用于多载波系统的帧模式以及接收装置和方法以及发送和接收系统和方法。

    OPTIMUM BER ADJUSTMENT FOR ADAPTIVE MULTI-CARRIER MODULATION
    13.
    发明申请
    OPTIMUM BER ADJUSTMENT FOR ADAPTIVE MULTI-CARRIER MODULATION 有权
    用于自适应多载波调制的最佳BER调整

    公开(公告)号:US20090161780A1

    公开(公告)日:2009-06-25

    申请号:US12272291

    申请日:2008-11-17

    CPC classification number: H04L27/0008 H04L1/0003 H04L5/0044 H04L5/006

    Abstract: The present invention relates to the fields of adaptive multi-carrier data transmission schemes. The present invention especially relates to a method of adapting transmission parameters of a group of subcarriers, a software program product and a communication device. The method of adapting transmission parameters of a group of subcarriers comprises steps of: determining a channel quality value for each subcarrier; establishing an order of assignment groups, each assignment group comprising one or more subcarriers, based on the channel quality values; assigning, in the order of the assignment groups, a transmission parameter to every assignment group, whereby assigning a transmission parameter to an assignment group comprises assigning the transmission parameter to all subcarriers of the assignment group; and calculating a link performance value based on previously assigned one or more transmission parameters; whereby the step of assigning a transmission parameter to every assignment group is based on the calculated link performance value.

    Abstract translation: 本发明涉及自适应多载波数据传输方案的领域。 本发明特别涉及一种适应一组子载波的传输参数,软件程序产品和通信设备的方法。 适应一组子载波的传输参数的方法包括以下步骤:确定每个子载波的信道质量值; 基于信道质量值,建立分配组的顺序,每个分配组包括一个或多个子载波; 按照所述分配组的顺序,将传输参数分配给每个分配组,由此将传输参数分配给分配组包括:将所述传输参数分配给所述分配组的所有子载波; 以及基于先前分配的一个或多个传输参数来计算链路性能值; 由此向每个分配组分配传输参数的步骤基于所计算的链路性能值。

    Bandwidth oriented reconfiguration of wireless ad hoc networks

    公开(公告)号:US20060105711A1

    公开(公告)日:2006-05-18

    申请号:US10524447

    申请日:2003-08-14

    CPC classification number: H04W28/08 H04W40/248 H04W84/20

    Abstract: A first wireless ad hoc network with a certain available amount of bandwidth comprises a plurality of wireless terminals communicating via wireless connections with each other. Each wireless connection requires a certain amount of the available amount of bandwidth. A problem occurs, if a wireless terminal wants to set up a new wireless connection requiring bandwidth or requires more bandwidth for an existing wireless connection and the required amount of bandwidth exceeds the left amount of the available amount of bandwidth of the first wireless ad hoc network. In a state of the art wireless ad hoc network the requested bandwidth cannot be provided and a user application may not be possible. According to the invention, however, the required amount of bandwidth can be provided by splitting the first wireless ad hoc network such that a second wireless ad hoc network is spawned which operates in a different communication channel and thus provides additional bandwidth. The second wireless ad hoc network comprises wireless terminals of the first wireless ad hoc network and/or new wireless terminals.

    Alamouti encoding and decoding
    16.
    发明授权
    Alamouti encoding and decoding 有权
    Alamouti编码和解码

    公开(公告)号:US09048911B2

    公开(公告)日:2015-06-02

    申请号:US12742456

    申请日:2008-11-06

    Abstract: The present invention relates to a refinement of the Alamouti encoding scheme. The Alamouti scheme provides transmitting in a first period, the symbols S1 and S2 and in the next period the symbols—S2* and S1*, wherein S1* is the complex conjugate of S1. The symbols carrying the same information are transmitted on different paths to a receiver. If a disturbance occurs during the first period, the receiver may recover the symbol from symbol S1* in the second time period and vice versa. If no disturbance occurs, the receiver may use both symbols to further improve the transmission quality. An interleaver is provided to increase the transmission distance between redundant symbols, thereby causing the spread delay to be set to a value larger than the maximum length of typical channel disturbance in the communication channel.

    Abstract translation: 本发明涉及Alamouti编码方案的改进。 Alamouti方案在第一周期中提供符号S1和S2以及下一周期中的符号-S2 *和S1 *的发送,其中S1 *是S1的复共轭。 携带相同信息的符号以不同的路径发送到接收机。 如果在第一周期期间发生干扰,则接收机可以在第二时间段内从符号S1 *恢复符号,反之亦然。 如果没有发生干扰,接收机可以使用两个符号来进一步提高传输质​​量。 提供交织器以增加冗余符号之间的传输距离,从而使得扩展延迟被设置为大于通信信道中的典型信道干扰的最大长度的值。

    Frame and data pattern structure for multi-carrier systems
    17.
    发明授权
    Frame and data pattern structure for multi-carrier systems 有权
    多载波系统的帧和数据模式结构

    公开(公告)号:US08665691B2

    公开(公告)日:2014-03-04

    申请号:US12689401

    申请日:2010-01-19

    Abstract: The present invention relates to a transmitting apparatus for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, said transmitting apparatus comprising frame forming means adapted to arrange first signalling data in said at least one signalling pattern in a frame, and adapted to arrange data in said one or more data patterns in a frame, whereby the data of said one or more data patterns comprise content data and sorting information enabling a sorting of the content data in the correct temporal order, transforming means adapted to transform said at least one signalling pattern and said one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means adapted to transmit said time domain transmission signal.The invention further relates to a corresponding transmitting method and frame structure, as well as a corresponding receiving apparatus and method, and corresponding transmitting and receiving apparatus and method.

    Abstract translation: 本发明涉及一种用于在多载波系统中基于帧结构发送信号的发送装置,每个帧包括至少一个信令模式和一个或多个数据模式,所述发送装置包括帧形成装置, 在帧中的所述至少一个信令模式中的信令数据,并且适于在一帧中的所述一个或多个数据模式中排列数据,由此所述一个或多个数据模式的数据包括内容数据和排序信息, 正确的时间顺序的内容数据,适于将所述至少一个信令模式和所述一个或多个数据模式从频域变换到时域的变换装置,以便产生时域传输信号,以及发送装置, 表示时域传输信号。 本发明还涉及相应的发送方法和帧结构,以及相应的接收装置和方法以及相应的发送和接收装置和方法。

    DIVISION OF BIT STREAMS TO PRODUCE SPATIAL PATHS FOR MULTICARRIER TRANSMISSION
    20.
    发明申请
    DIVISION OF BIT STREAMS TO PRODUCE SPATIAL PATHS FOR MULTICARRIER TRANSMISSION 有权
    位流分区生产多媒体传输空间波段

    公开(公告)号:US20130003760A1

    公开(公告)日:2013-01-03

    申请号:US13601049

    申请日:2012-08-31

    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。

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