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1. 发明申请

US20100272169A1 COMPENSATING CARRIER FREQUENCY OFFSETS IN OFDM SYSTEMS 审中-公开
标题翻译：在OFDM系统中补偿载波频偏
公开(公告)号：US20100272169A1
公开(公告)日：2010-10-28
申请号：US12429668
申请日：2009-04-24
申请人： Joerg Holfeld , Eckhard Ohlmer , Rene Habendorf
发明人： Joerg Holfeld , Eckhard Ohlmer , Rene Habendorf
IPC分类号： H04L27/01 , H04B1/10
CPC分类号： H04B1/123 , H04L25/03821 , H04L27/2657 , H04L27/2691
摘要： In an OFDM system a plurality of subcarriers interferes with a considered subcarrier in case of carrier frequency offsets. A method and a corresponding receiver topology are disclosed for reducing the interference caused by frequency offsets of the subcarriers, wherein in a decision feedback equalizer the resources for computing the interference of subcarriers are adaptively allocated, such that only the most interfering subcarriers are considered when subtracting the interfering symbols from considered subcarrier symbols.
摘要翻译：在OFDM系统中，在载波频率偏移的情况下，多个子载波干扰考虑的子载波。公开了一种用于减少由子载波的频率偏移引起的干扰的方法和对应的接收器拓扑，其中在判决反馈均衡器中，自适应地分配用于计算子载波干扰的资源，使得当减去最多干扰子载波时，所考虑的子载波符号的干扰符号。

2. 发明授权

US08787493B2 Precoding technique 有权
标题翻译：预编码技术
公开(公告)号：US08787493B2
公开(公告)日：2014-07-22
申请号：US13817604
申请日：2011-08-12
申请人： Eckhard Ohlmer , Udo Wachsmann
发明人： Eckhard Ohlmer , Udo Wachsmann
IPC分类号： H04L25/49
CPC分类号： H04L1/0042 , H04B7/0417 , H04B7/0465 , H04B7/063 , H04B7/0634
摘要： A technique for precoding a signal to be transmitted over a physical channel from a sender to a receiver is provided. A method includes receiving precoding information and applying precoding matrix at the sender based on the precoding information. The precoding information is received via a feedback mechanism from the receiver. The application of the precoding matrix results in a precoded signal for transmission over the physical channel. The precoding matrix enhances mutual information at the receiver.
摘要翻译：提供了一种用于对通过物理信道从发送方发送到接收方的信号进行预编码的技术。一种方法包括基于预编码信息接收预编码信息并在发送方应用预编码矩阵。经由来自接收机的反馈机制接收预编码信息。预编码矩阵的应用导致用于在物理信道上传输的预编码信号。预编码矩阵增强了接收机的互信息。

3. 发明申请

US20130188751A1 Precoding Technique 有权
标题翻译：预编码技术
公开(公告)号：US20130188751A1
公开(公告)日：2013-07-25
申请号：US13817604
申请日：2011-08-12
申请人： Eckhard Ohlmer , Udo Wachsmann
发明人： Eckhard Ohlmer , Udo Wachsmann
IPC分类号： H04L1/00
CPC分类号： H04L1/0042 , H04B7/0417 , H04B7/0465 , H04B7/063 , H04B7/0634
摘要： A technique for precoding a signal to be transmitted over a physical channel (102; 206) from a sender to a receiver is provided. As to a method aspect, a method (100) comprises the steps of receiving (104) precoding information and applying (108) a precoding matrix (W) at the sender based on the precoding information. The precoding information is received via a feedback mechanism from the receiver. The application results in a precoded signal (216, 218) for transmission over the physical channel (102; 206). The precoding matrix (W) enhances mutual information (I) at the receiver.
摘要翻译：提供了一种用于对通过物理信道（102; 206）从发送方发送到接收方的信号进行预编码的技术。对于方法方面，方法（100）包括以下步骤：基于预编码信息接收（104）预编码信息并在发送器处应用（108）预编码矩阵（W）。经由来自接收机的反馈机制接收预编码信息。应用程序产生用于通过物理信道（102; 206）传输的预编码信号（216,218）。预编码矩阵（W）增强了接收机处的互信息（I）。

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