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1. 发明授权

US07751307B2 Communication apparatus and a method of transmitting data therefor 有权
标题翻译：通信装置及其发送数据的方法
公开(公告)号：US07751307B2
公开(公告)日：2010-07-06
申请号：US11721574
申请日：2005-11-18
申请人： Makus Muck , Marc Bernard De Courville , Stephanie Rouquette-Leveil
发明人： Makus Muck , Marc Bernard De Courville , Stephanie Rouquette-Leveil
IPC分类号： H04J11/00 , G01R31/08 , H04J1/00 , H04J3/16 , H04B7/02
CPC分类号： H04L27/261 , H04L27/262
摘要： An Orthogonal Frequency Division Multiplex (OFDM) transmitter (100) comprises a symbol generator (103) for generating a first OFDM symbol comprising user data and pilot data where the pilot data comprises a set of predetermined non-orthogonal pilot symbols. A weight generator (109) uses an amplitude estimator (107) for selecting a set of weights for the pilot data of the first OFDM symbol in response to a time domain amplitude variation characteristic of the first OFDM symbol. In particular, the peak to average power ratio may be determined. The set of weights are selected from a discrete alphabet of weights. A weight processor (113) determines a second OFDM symbol by weighting the pilot symbols by the set of weights. The second OFDM symbol is transmitted to a receiver without transmitting identification of the selected set of weights. The receiver may perform a blind detection of the applied weights and may compensate the received pilot symbols for the estimated weight.
摘要翻译：正交频分复用（OFDM）发射机（100）包括用于生成包括用户数据和导频数据的第一OFDM符号的符号发生器（103）。导频数据包括一组预定的非正交导频符号。权重发生器（109）使用振幅估计器（107）来响应于第一OFDM符号的时域振幅变化特性来选择导频数据的一组加权。可以确定峰均功率比。权重集是从离散的权重字母表中选出的。权重处理器（113）通过对所述导频符号加权所述权重集来确定第二OFDM符号。第二OFDM符号被发送到接收机，而不发送所选择的一组权重的标识。接收机可以执行所施加的权重的盲检测，并且可以对所估计权重的接收到的导频符号进行补偿。

2. 发明申请

US20080101487A1 Communication Apparatus and a Method of Transmitting Data Therefor 有权
标题翻译：通信设备及其数据传输方法
公开(公告)号：US20080101487A1
公开(公告)日：2008-05-01
申请号：US11721574
申请日：2005-11-18
申请人： Makus Muck , Marc Bernard De Courville , Stephanie Rouquette-Leveil
发明人： Makus Muck , Marc Bernard De Courville , Stephanie Rouquette-Leveil
IPC分类号： H04L27/28
CPC分类号： H04L27/261 , H04L27/262
摘要： An Orthogonal Frequency Division Multiplex (OFDM) transmitter (100) comprises a symbol generator (103) for generating a first OFDM symbol comprising user data and pilot data where the pilot data comprises a set of predetermined non-orthogonal pilot symbols. A weight generator (109) uses an amplitude estimator (107) for selecting a set of weights for the pilot data of the first OFDM symbol in response to a time domain amplitude variation characteristic of the first OFDM symbol. In particular, the peak to average power ratio may be determined. The set of weights are selected from a discrete alphabet of weights. A weight processor (113) determines a second OFDM symbol by weighting the pilot symbols by the set of weights. The second OFDM symbol is transmitted to a receiver without transmitting identification of the selected set of weights. The receiver may perform a blind detection of the applied weights and may compensate the received pilot symbols for the estimated weight.
摘要翻译：正交频分复用（OFDM）发射机（100）包括用于产生包括用户数据和导频数据的第一OFDM符号的符号发生器（103），其中导频数据包括一组预定的非正交导频符号。权重发生器（109）使用振幅估计器（107）来响应于第一OFDM符号的时域振幅变化特性来选择第一OFDM符号的导频数据的一组加权。特别地，峰值与平均功率比可以被确定。权重集是从离散的权重字母表中选出的。权重处理器（113）通过对所述导频符号加权所述权重集来确定第二OFDM符号。第二OFDM符号被发送到接收机，而不发送所选择的一组权重的标识。接收机可以执行所施加的权重的盲检测，并且可以对所估计权重的接收到的导频符号进行补偿。

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