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1. 发明申请

WO2007072348A3 A METHOD FOR SIGNAL RECEPTION IN A OFDM SYSTEM 审中-公开
标题翻译： OFDM系统中信号接收的方法
公开(公告)号：WO2007072348A3
公开(公告)日：2007-10-18
申请号：PCT/IB2006054842
申请日：2006-12-14
申请人： KONINKL PHILIPS ELECTRONICS NV , SIGNALION GMBH , PHILIPS INTELLECTUAL PROPERTY , BAGGEN CONSTANT P M J , FILIPPI ALESSIO , HUSEN SRI A , STASSEN MAURICE L A , AUE VOLKER , BURY ANDREAS , FLIESS THOMAS , CASAMAJOU YANN , PIROT FREDERIC
发明人： BAGGEN CONSTANT P M J , FILIPPI ALESSIO , HUSEN SRI A , STASSEN MAURICE L A , AUE VOLKER , BURY ANDREAS , FLIESS THOMAS , CASAMAJOU YANN , PIROT FREDERIC
IPC分类号： H04L25/02
CPC分类号： H04L27/261
摘要： In an OFDM mobile communications system, an algorithm for forming a preliminary estimate of the channel on pilot subcarriers is carried out. Based on this preliminary estimate, a channel property is estimated. This channel property is then used to decide whether to enter a mobile receiver mode or a stationary receiver mode. For example, in the mobile mode channel estimation is performed using only pilot symbols from the current symbol period, while in the static mode channel estimation is performed using pilot symbols from the current symbol period and pilot symbols from other symbol periods.
摘要翻译：在OFDM移动通信系统中，执行用于形成导频子载波上的信道的初步估计的算法。根据这个初步估计，估计一个频道属性。然后，该频道属性用于决定是否进入移动接收机模式或静态接收机模式。例如，在移动模式中，仅使用来自当前符号周期的导频符号进行信道估计，而在静态模式中，使用来自当前符号周期的导频符号和来自其他符号周期的导频符号来执行信道估计。

2. 发明申请

WO2008146242A3 FREQUENCY DOMAIN INTERPOLATION BASED RECEIVER FOR MULTICARRIER SIGNALS 审中-公开
标题翻译：基于频域插值的接收器用于多媒体信号
公开(公告)号：WO2008146242A3
公开(公告)日：2009-05-28
申请号：PCT/IB2008052075
申请日：2008-05-27
申请人： NXP BV , CASAMAJOU YANN
发明人： CASAMAJOU YANN
IPC分类号： H04L27/26 , H04L25/02
CPC分类号： H04L25/0232 , H04L5/0007 , H04L5/0051 , H04L25/0216 , H04L25/022 , H04L25/03159 , H04L27/2647 , H04L2025/03414 , H04L2025/03522 , H04L2025/03585 , H04L2025/03796
摘要： A receiver apparatus (1) for receiving a signal over a fading channel comprises a frequency domain interpolation unit (16) with a filter unit (10), a power comparison unit (20), and a processing unit (21). The filter unit (10) comprises a first filter element (11), which is a reference filter, and a second filter element (12). The first filter element (11) is arranged as large-band filter. The power comparison unit (20) compares the power of the signal filtered with said second filter element (12) with the power of the signal filtered with said first filter element (11). The processing unit (21) determines an appropriate filter length for a third filter element (13) of the filter unit (10) on the basis of this comparison. Thereby, a trade-off is made between an additional power received due to a long echo and an additional Gaussian noise power. The signal filtered with the third filter element (13) is sent to a signal processing unit (22) for further signal processing and then output at said output (4) of the receiver apparatus (1).
摘要翻译：一种用于通过衰落信道接收信号的接收机装置（1）包括具有滤波器单元（10）的频域插值单元（16），功率比较单元（20）和处理单元（21）。过滤器单元（10）包括作为参考过滤器的第一过滤元件（11）和第二过滤元件（12）。第一滤波器元件（11）被布置为大带滤波器。功率比较单元（20）将滤波的信号的功率与所述第二滤波器元件（12）的功率与由所述第一滤波器元件（11）滤波的信号的功率进行比较。处理单元（21）基于该比较确定过滤器单元（10）的第三过滤元件（13）的适当的过滤器长度。因此，在由于长回波而接收到的附加功率和附加的高斯噪声功率之间进行权衡。用第三滤波器元件（13）滤波的信号被发送到信号处理单元（22）用于进一步的信号处理，然后在接收机装置（1）的所述输出端（4）输出。

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