公开(公告)号：US20100046684A1

公开(公告)日：2010-02-25

申请号：US12230080

申请日：2008-08-22

申请人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard G. T. Kramer ,  Carl J. Nuzman ,  Philip A. Whiting

发明人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard G. T. Kramer ,  Carl J. Nuzman ,  Philip A. Whiting

IPC分类号： H04L7/00

CPC分类号： H04L23/02 ,  H04B3/487 ,  H04B2201/70701

摘要： The present invention relates to a communication system and method for transmitting sync flags and pilot symbols during sync symbol periods. Example embodiments provide a method for sharing sync symbols to communicate flag sequences and pilot sequences during a sequence of sync symbol periods. The method includes modulating the pilot sequence by multiplying a pilot code by each value of the pilot sequence, and modulating the flag sequence by multiplying a flag code by each value of the flag sequence. The pilot and flag codes are mutually orthogonal to each other and each includes at least two non-zero values. The method further includes generating a resulting sync symbol sequence based on the modulated pilot sequence and modulated flag sequence, and sending the resulting sync symbol sequence during the sync symbol period.

摘要翻译： 本发明涉及用于在同步符号周期期间发送同步标志和导频符号的通信系统和方法。 示例性实施例提供了一种在同步符号周期的序列期间共享同步符号以传送标志序列和导频序列的方法。 该方法包括通过将导频码乘以导频序列的每个值来调制导频序列，并通过将标志码乘以标志序列的每个值来调制标志序列。 导频和标志码彼此相互正交，并且每个包括至少两个非零值。 该方法还包括基于调制的导频序列和调制的标记序列产生所得到的同步符号序列，以及在同步符号周期期间发送所得到的同步符号序列。

公开(公告)号：US08089880B2

公开(公告)日：2012-01-03

申请号：US11222476

申请日：2005-09-08

申请人： Gerhard G. T. Kramer

发明人： Gerhard G. T. Kramer

IPC分类号： H04L1/00

CPC分类号： H04B7/15542 ,  H04L45/00 ,  H04W40/10

摘要： A network relay, a transmitter and methods of operating a network relay and transmitter. In one embodiment, the method of operating the network relay includes: (1) at a relay, receiving one or more symbols transmitted by a source in each of a first sequence of fundamental intervals, (2) from the relay, transmitting data extracted from the received ones of the symbols to a destination in each of a second sequence of fundamental intervals, the fundamental intervals of the first and second sequences interleaving to make a continuous period of time and (3) for each particular one of the fundamental intervals, selecting between performing the receiving and performing the transmitting based on one or more of the symbols received in an associated recent one of the fundamental intervals.

摘要翻译： 网络中继器，发射机和操作网络中继器和发射机的方法。 在一个实施例中，操作网络中继的方法包括：（1）在中继站处，接收由源在第一基本序列序列中的每一个中发送的一个或多个符号，（2）从中继发送从 在第二基本区间序列中的每一个中将接收到的符号传送到目的地，第一和第二序列的基本间隔交织以使连续的时间段和（3）对于每个特定的一个基本间隔，选择 在基于相关联的最近一个基本间隔中接收的一个或多个符号来执行接收和执行发送之间。

公开(公告)号：US08630383B2

公开(公告)日：2014-01-14

申请号：US12230080

申请日：2008-08-22

申请人： Adriaan J. de Lind van Wijngaarden ,  Gerhard G. T. Kramer ,  Carl J. Nuzman ,  Philip A. Whiting

发明人： Adriaan J. de Lind van Wijngaarden ,  Gerhard G. T. Kramer ,  Carl J. Nuzman ,  Philip A. Whiting

IPC分类号： H04L7/06

CPC分类号： H04L23/02 ,  H04B3/487 ,  H04B2201/70701

摘要： The present invention relates to a communication system and method for transmitting sync flags and pilot symbols during sync symbol periods. Example embodiments provide a method for sharing sync symbols to communicate flag sequences and pilot sequences during a sequence of sync symbol periods. The method includes modulating the pilot sequence by multiplying a pilot code by each value of the pilot sequence, and modulating the flag sequence by multiplying a flag code by each value of the flag sequence. The pilot and flag codes are mutually orthogonal to each other and each includes at least two non-zero values. The method further includes generating a resulting sync symbol sequence based on the modulated pilot sequence and modulated flag sequence, and sending the resulting sync symbol sequence during the sync symbol period.

摘要翻译： 本发明涉及用于在同步符号周期期间发送同步标志和导频符号的通信系统和方法。 示例性实施例提供了一种在同步符号周期的序列期间共享同步符号以传送标志序列和导频序列的方法。 该方法包括通过将导频码乘以导频序列的每个值来调制导频序列，并通过将标志码乘以标志序列的每个值来调制标志序列。 导频和标志码彼此相互正交，并且每个包括至少两个非零值。 该方法还包括基于调制的导频序列和调制的标记序列产生所得到的同步符号序列，以及在同步符号周期期间发送所得到的同步符号序列。

公开(公告)号：US08018868B2

公开(公告)日：2011-09-13

申请号：US12457412

申请日：2009-06-10

申请人： Carl J. Nuzman ,  Adriaan J. de Lind van Wijngaarden ,  Philip A. Whiting ,  Jochen J. M. Maes ,  Gerhard G. T. Kramer ,  Hungkei Chow ,  Alexei E. Ashikhmin

发明人： Carl J. Nuzman ,  Adriaan J. de Lind van Wijngaarden ,  Philip A. Whiting ,  Jochen J. M. Maes ,  Gerhard G. T. Kramer ,  Hungkei Chow ,  Alexei E. Ashikhmin

IPC分类号： H04L12/26

CPC分类号： H04L27/261 ,  H04B3/32 ,  H04B3/487 ,  H04L1/20 ,  H04L25/0206

摘要： The present invention relates to a crosstalk estimation device for estimating crosstalk between communication lines in a precoding group. The crosstalk estimation device comprises transmission means for transmitting a pilot sequence and reception means for receiving error feedback on one or more communication lines in the precoding group. The crosstalk estimation device further comprises crosstalk estimation means for combining the pilot sequence with the error feedback in order to obtain a crosstalk estimation between the communication lines. The device further comprises selection means for selecting a subset of one or more communication lines from the precoding group. The transmission means are adapted to transmit the pilot sequence only on the subset.

摘要翻译： 串扰估计装置技术领域本发明涉及一种用于估计预编码组中的通信线路之间的串扰的串扰估计装置。 串扰估计装置包括用于发送导频序列的发送装置和用于在预编码组中的一个或多个通信线路上接收错误反馈的接收装置。 串扰估计装置还包括用于将导频序列与错误反馈组合的串扰估计装置，以便获得通信线路之间的串扰估计。 该设备还包括用于从预编码组中选择一条或多条通信线路的子集的选择装置。 发送装置适于仅在子集上发送导频序列。