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1. 发明授权

US08031787B2 Channel estimation for OFDM systems 失效
标题翻译： OFDM系统的信道估计
公开(公告)号：US08031787B2
公开(公告)日：2011-10-04
申请号：US11946214
申请日：2007-11-28
申请人： Stefan Fechtel , Christian Rom , Benny Vejlgaard
发明人： Stefan Fechtel , Christian Rom , Benny Vejlgaard
IPC分类号： H04K1/00
CPC分类号： H04L25/022 , H04L25/0212 , H04L25/0232
摘要： In a method for channel estimation of an OFDM signal transmitted via a channel, an initial channel transfer function is calculated by channel estimation. A channel impulse response is calculated on the basis of the initial channel transfer function. Values of the channel impulse response or of a filtered channel impulse response are classified as noise or as a signal as a function of the level of the values of the channel impulse or of the level of the values of the filtered channel impulse response. A noise-reduced channel impulse response is calculated on the basis of the channel impulse response using the classification, and a noise-reduced channel transfer function is calculated on the basis of this noise-reduced channel impulse response.
摘要翻译：在通过信道发送的OFDM信号的信道估计方法中，通过信道估计来计算初始信道传递函数。基于初始信道传递函数计算信道脉冲响应。信道脉冲响应或经滤波的信道脉冲响应的值被分类为噪声或作为信道脉冲的值的水平或滤波的信道脉冲响应的值的电平的函数的信号。基于使用分类的信道脉冲响应来计算噪声降低的信道脉冲响应，并且基于该降噪信道脉冲响应来计算噪声降低的信道传递函数。

2. 发明授权

US09042468B2 Channel estimation technique 有权
标题翻译：信道估计技术
公开(公告)号：US09042468B2
公开(公告)日：2015-05-26
申请号：US13929355
申请日：2013-06-27
申请人： Oana-Elena Barbu , Guillaume Damien Andre Monghal , Christian Rom , Bernhard H. Fleury , Niels Lovmand Pedersen , Carles Navarro Manchon
发明人： Oana-Elena Barbu , Guillaume Damien Andre Monghal , Christian Rom , Bernhard H. Fleury , Niels Lovmand Pedersen , Carles Navarro Manchon
IPC分类号： H04K1/10 , H04L25/02 , H04L5/00
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048 , H04L25/0212 , H04L25/0218 , H04L25/022 , H04L25/0224 , H04L25/024
摘要： A method includes determining a sequence of first coefficient estimates of a communication channel based on a sequence of pilots arranged according to a known pilot pattern and based on a receive signal, wherein the receive signal is based on the sequence of pilots transmitted over the communication channel. The method further includes determining a sequence of second coefficient estimates of the communication channel based on a decomposition of the first coefficient estimates in a dictionary matrix and a sparse vector of the second coefficient estimates, the dictionary matrix including filter characteristics of at least one known transceiver filter arranged in the communication channel.
摘要翻译：一种方法包括：基于根据已知导频模式布置并基于接收信号的导频序列来确定通信信道的第一系数估计序列，其中接收信号基于通过通信信道发送的导频序列。该方法还包括基于字典矩阵中的第一系数估计和第二系数估计的稀疏向量的分解来确定通信信道的第二系数估计序列，字典矩阵包括至少一个已知收发器的滤波特性滤波器布置在通信信道中。

3. 发明授权

US09008581B2 Radio devices and methods for controlling radio devices 有权
标题翻译：用于控制无线电设备的无线电设备和方法
公开(公告)号：US09008581B2
公开(公告)日：2015-04-14
申请号：US12614440
申请日：2009-11-08
申请人： Markus Mueck , Christian Drewes , Christian Rom , Wen Xu
发明人： Markus Mueck , Christian Drewes , Christian Rom , Wen Xu
IPC分类号： H04B1/00 , H04W72/00 , H04W24/00 , H04W72/08 , H04M1/725 , H04W8/00 , H04W28/18
CPC分类号： H04W72/085 , H04M1/725 , H04M2250/02 , H04M2250/06 , H04W8/005 , H04W28/18
摘要： In an embodiment, a radio device is provided. The radio device may include a signal transmitter configured to transmit a plurality of signals, the signals being transmitted with different intensities; a response receiver configured to receive a response message to one of the transmitted signals from a radio communication device having received the respective transmitted signal of the plurality of transmitted signals, the response message identifying the received message; and a assessment circuit configured to assess the reachability of the radio communication device from the radio device based on the intensity of the signal to which the radio communication device has responded.
摘要翻译：在一个实施例中，提供无线电设备。无线电设备可以包括被配置为发送多个信号的信号发射机，所述信号以不同的强度发送; 响应接收器，其被配置为从已经接收到所述多个发送信号的相应发送信号的无线电通信设备向所发送的信号之一接收响应消息，所述响应消息标识所接收的消息; 以及评估电路，被配置为基于无线电通信设备已经响应的信号的强度来评估无线电设备从无线电设备的可达性。

4. 发明申请

US20080130771A1 CHANNEL ESTIMATION FOR OFDM SYSTEMS 失效
标题翻译： OFDM系统的信道估计
公开(公告)号：US20080130771A1
公开(公告)日：2008-06-05
申请号：US11946214
申请日：2007-11-28
申请人： Stefan Fechtel , Christian Rom , Benny Vejlgaard
发明人： Stefan Fechtel , Christian Rom , Benny Vejlgaard
IPC分类号： H04K1/10
CPC分类号： H04L25/022 , H04L25/0212 , H04L25/0232
摘要： In a method for channel estimation of an OFDM signal transmitted via a channel, an initial channel transfer function is calculated by channel estimation. A channel impulse response is calculated on the basis of the initial channel transfer function. Values of the channel impulse response or of a filtered channel impulse response are classified as noise or as a signal as a function of the level of the values of the channel impulse or of the level of the values of the filtered channel impulse response. A noise-reduced channel impulse response is calculated on the basis of the channel impulse response using the classification, and a noise-reduced channel transfer function is calculated on the basis of this noise-reduced channel impulse response.
摘要翻译：在通过信道发送的OFDM信号的信道估计方法中，通过信道估计来计算初始信道传递函数。基于初始信道传递函数计算信道脉冲响应。信道脉冲响应或经滤波的信道脉冲响应的值被分类为噪声或作为信道脉冲的值的水平或滤波的信道脉冲响应的值的电平的函数的信号。基于使用分类的信道脉冲响应来计算噪声降低的信道脉冲响应，并且基于该降噪信道脉冲响应来计算噪声降低的信道传递函数。

5. 发明申请

US20150003542A1 CHANNEL ESTIMATION TECHNIQUE 有权
标题翻译：频道估算技术
公开(公告)号：US20150003542A1
公开(公告)日：2015-01-01
申请号：US13929355
申请日：2013-06-27
申请人： Oana-Elena BARBU , Guillaume Damien Andre MONGHAL , Christian ROM , Bernhard H. FLEURY , Niels Lovmand PEDERSEN , Carles NAVARRO MANCHON
发明人： Oana-Elena BARBU , Guillaume Damien Andre MONGHAL , Christian ROM , Bernhard H. FLEURY , Niels Lovmand PEDERSEN , Carles NAVARRO MANCHON
IPC分类号： H04L25/02
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048 , H04L25/0212 , H04L25/0218 , H04L25/022 , H04L25/0224 , H04L25/024
摘要： A method includes determining a sequence of first coefficient estimates of a communication channel based on a sequence of pilots arranged according to a known pilot pattern and based on a receive signal, wherein the receive signal is based on the sequence of pilots transmitted over the communication channel. The method further includes determining a sequence of second coefficient estimates of the communication channel based on a decomposition of the first coefficient estimates in a dictionary matrix and a sparse vector of the second coefficient estimates, the dictionary matrix including filter characteristics of at least one known transceiver filter arranged in the communication channel.
摘要翻译：一种方法包括：基于根据已知导频模式布置并基于接收信号的导频序列来确定通信信道的第一系数估计序列，其中接收信号基于通过通信信道发送的导频序列。该方法还包括基于字典矩阵中的第一系数估计和第二系数估计的稀疏向量的分解来确定通信信道的第二系数估计序列，字典矩阵包括至少一个已知收发器的滤波特性滤波器布置在通信信道中。

6. 发明申请

US20110111764A1 RADIO DEVICES AND METHODS FOR CONTROLLING RADIO DEVICES 有权
标题翻译：用于控制无线电设备的无线电设备和方法
公开(公告)号：US20110111764A1
公开(公告)日：2011-05-12
申请号：US12614440
申请日：2009-11-08
申请人： Markus Mueck , Christian Drewes , Christian Rom , Wen Xu
发明人： Markus Mueck , Christian Drewes , Christian Rom , Wen Xu
IPC分类号： H04W72/00 , H04B17/00 , H04W72/08 , H04B15/00
CPC分类号： H04W72/085 , H04M1/725 , H04M2250/02 , H04M2250/06 , H04W8/005 , H04W28/18
摘要： In an embodiment, a radio device is provided. The radio device may include a signal transmitter configured to transmit a plurality of signals, the signals being transmitted with different intensities; a response receiver configured to receive a response message to one of the transmitted signals from a radio communication device having received the respective transmitted signal of the plurality of transmitted signals, the response message identifying the received message; and a assessment circuit configured to assess the reachability of the radio communication device from the radio device based on the intensity of the signal to which the radio communication device has responded.
摘要翻译：在一个实施例中，提供无线电设备。无线电设备可以包括被配置为发送多个信号的信号发射机，所述信号以不同的强度发送; 响应接收器，其被配置为从已经接收到所述多个发送信号的相应发送信号的无线电通信设备向所发送的信号之一接收响应消息，所述响应消息标识所接收的消息; 以及评估电路，被配置为基于无线电通信设备已经响应的信号的强度来评估无线电设备从无线电设备的可达性。

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