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1.发明授权公开(公告)号：US09154280B2
公开(公告)日：2015-10-06
申请号：US13582234
申请日：2011-03-07
CPC分类号： H04L5/0046 , H03M13/2742 , H03M13/2789 , H04L1/0071 , H04L5/0007 , H04L27/2634
摘要： In a communications device a grouping unit uses channel state information when mapping data bits to a plurality of different constellation groups. Each constellation group is assigned to another modulation scheme. A plurality of sub-carriers is assigned to none or one of the constellation groups and each modulation uses another one of the constellation groups. The communications device includes at least one scalable interleaver unit, wherein each interleaver unit is assigned to one of the constellation groups and interleaves the assignment of data bits mapped to each constellation group and the sub-carriers that carry a symbol information derived from the data bits. As an example, the interleaver unit performs frequency interleaving by interleaving, at constellation level, the sub-carriers that carry the symbol information.
摘要翻译： 在通信设备中，当将数据位映射到多个不同的星座组时，分组单元使用信道状态信息。 每个星座组被分配给另一个调制方案。 多个子载波被分配给星座组中的一个或一个，并且每个调制使用另一个星座组。 通信设备包括至少一个可伸缩交织器单元，其中每个交织器单元被分配给一个星座组，并对映射到每个星座组的数据比特的分配和携带从数据比特得到的符号信息的子载波进行交织 。 作为示例，交织器单元通过在星座级别交织携带符号信息的子载波来执行频率交织。
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2.发明授权Transmit power allocation for adaptive multi-carrier multiplexing MIMO systems 有权用于自适应多载波复用MIMO系统的发射功率分配公开(公告)号：US09042310B2
公开(公告)日：2015-05-26
申请号：US12275728
申请日：2008-11-21
IPC分类号： H04W4/00 , H04L12/28 , H04J3/00 , H04B7/04 , H04W76/00 , H04W88/08 , H04W72/04 , H04W52/24 , H04W52/34
CPC分类号： H04B7/043 , H04B7/0426 , H04L27/2601 , H04W52/241 , H04W52/346 , H04W72/04 , H04W76/00 , H04W88/08
摘要： The present invention relates to transmit power allocation in multi-carrier, multiplexing MIMO communication systems. The present invention especially relates to a MIMO communication device, a method of assigning transmit power to two or more communication channels and a software program product. A multiple-input-multiple-output, MIMO, communication device according to the present invention comprisesa link controller adapted to assign transmit power to two or more transmission channels, each of said transmission channels having preassigned a portion of transmit power for each of a group of subcarriers, said link controller being further adapted to assign, for each subcarrier of said group of subcarriers, at least part of the preassigned transmit power portion of a transmission channel that is not used for transmitting information at the subcarrier, to one or more transmission channels that are used for transmitting information at the subcarrier.
摘要翻译： 本发明涉及多载波复用MIMO通信系统中的发射功率分配。 本发明特别涉及MIMO通信设备，向两个或更多个通信信道分配发射功率的方法和软件程序产品。 根据本发明的多输入多输出MIMO通信设备包括链路控制器，其适于将发射功率分配给两个或更多个传输信道，每个所述传输信道具有预先分配发射功率的一部分 所述链路控制器还适于为所述子载波组的每个子载波分配未被用于在子载波处发送信息的传输信道的预先分配的发射功率部分的至少一部分分配给一个或多个 用于在子载波处发送信息的传输信道。
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3.发明申请COMMUNICATIONS SYSTEM USING ADAPTIVE ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING 有权使用自适应正交频分多路复用的通信系统公开(公告)号：US20130039397A1
公开(公告)日：2013-02-14
申请号：US13582234
申请日：2011-03-07
CPC分类号： H04L5/0046 , H03M13/2742 , H03M13/2789 , H04L1/0071 , H04L5/0007 , H04L27/2634
摘要： In a communications device a grouping unit uses channel state information when mapping data bits to a plurality of different constellation groups. Each constellation group is assigned to another modulation scheme. A plurality of sub-carriers is assigned to none or one of the constellation groups and each modulation uses another one of the constellation groups. The communications device includes at least one scalable interleaver unit, wherein each interleaver unit is assigned to one of the constellation groups and interleaves the assignment of data bits mapped to each constellation group and the sub-carriers that carry a symbol information derived from the data bits. As an example, the interleaver unit performs frequency interleaving by interleaving, at constellation level, the sub-carriers that carry the symbol information.
摘要翻译： 在通信设备中，当将数据位映射到多个不同的星座组时，分组单元使用信道状态信息。 每个星座组被分配给另一个调制方案。 多个子载波被分配给星座组中的一个或一个，并且每个调制使用另一个星座组。 通信设备包括至少一个可伸缩交织器单元，其中每个交织器单元被分配给星座组中的一个，并交织映射到每个星座组的数据比特的分配以及携带从数据比特得到的符号信息的子载波 。 作为示例，交织器单元通过在星座级别交织携带符号信息的子载波来执行频率交织。
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4.发明授权Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system 有权用于在电力线通信网络，发射机，接收机，电力线通信调制解调器和电力线通信系统中从发射机向接收机发送信号的方法公开(公告)号：US08270505B2
公开(公告)日：2012-09-18
申请号：US12145992
申请日：2008-06-25
IPC分类号： H04K1/10
CPC分类号： H04L27/2601 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5425 , H04L1/0693 , H04L5/0025 , H04L5/0058 , H04L5/0092 , H04L25/0248 , H04L27/2646 , H04L27/2647
摘要： A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well.
摘要翻译： 一种用于通过信道将信号从发射机发送到电力线网络上的接收机的方法，其中所述信号在一组子载波上进行OFDM调制，其中确定OFDM子映射和本征波束形成编码矩阵 基于每个子载波的信道估计，生成分别描述所述OFDM tonemap和所述本征波束形成编码矩阵并且发送到发射机的tonemap反馈信号和本征波束形成反馈信号。 还描述了相应的接收机，发射机，电力线通信和电力线通信系统。
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5.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
CPC分类号： H04B3/54 , H04B3/32 , H04B3/46 , H04B2203/5425 , H04B2203/5466 , H04L1/0009 , H04L1/0618 , H04L5/0044
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20090161780A1
公开(公告)日：2009-06-25
申请号：US12272291
申请日：2008-11-17
IPC分类号： H04L27/28
CPC分类号： H04L27/0008 , H04L1/0003 , H04L5/0044 , H04L5/006
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US09276649B2
公开(公告)日：2016-03-01
申请号：US13601513
申请日：2012-08-31
CPC分类号： H04B7/043 , H04B7/0426 , H04L27/2601 , H04W52/241 , H04W52/346 , H04W72/04 , H04W76/00 , H04W88/08
摘要： The present invention relates to transmit power allocation in multi-carrier, multiplexing MIMO communication systems. The present invention especially relates to a MIMO communication device, a method of assigning transmit power to two or more communication channels and a software program product. A multiple-input-multiple-output, MIMO, communication device according to the present invention comprises a link controller adapted to assign transmit power to two or more transmission channels, each of said transmission channels having preassigned a portion of transmit power for each of a group of subcarriers, said link controller being further adapted to assign, for each subcarrier of said group of subcarriers, at least part of the preassigned transmit power portion of a transmission channel that is not used for transmitting information at the subcarrier, to one or more transmission channels that are used for transmitting information at the subcarrier.
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公开(公告)号：US09048911B2
公开(公告)日：2015-06-02
申请号：US12742456
申请日：2008-11-06
CPC分类号： H04B7/0669 , H04B7/0671 , H04B7/068 , H04B7/0871 , H04B7/0885 , H04B7/0888 , H04B7/0894 , H04L1/0606 , H04L1/0643 , H04L1/0668
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08509333B2
公开(公告)日：2013-08-13
申请号：US13601561
申请日：2012-08-31
IPC分类号： H04K1/10
CPC分类号： H04L27/2601 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5425 , H04L1/0693 , H04L5/0025 , H04L5/0058 , H04L5/0092 , H04L25/0248 , H04L27/2646 , H04L27/2647
摘要： A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well.
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公开(公告)号：US08406329B2
公开(公告)日：2013-03-26
申请号：US13556572
申请日：2012-07-24
IPC分类号： H04L5/12
CPC分类号： H04L27/2601 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5425 , H04L1/0693 , H04L5/0025 , H04L5/0058 , H04L5/0092 , H04L25/0248 , H04L27/2646 , H04L27/2647
摘要： A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well.
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