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1. 发明授权

US08406325B2 Methods and receivers of carrier frequency offset detection 有权
标题翻译：载波频偏检测的方法和接收机
公开(公告)号：US08406325B2
公开(公告)日：2013-03-26
申请号：US12713156
申请日：2010-02-25
申请人： Hen-Wai Tsao , Yang-Han Lee , Yu-Lin Shiao , Jing-Shown Wu
发明人： Hen-Wai Tsao , Yang-Han Lee , Yu-Lin Shiao , Jing-Shown Wu
IPC分类号： H04K1/10
CPC分类号： H04L27/3488 , H04L27/2604 , H04L27/2613 , H04L27/2657 , H04L27/2672 , H04L27/2675
摘要： A receiver used for an orthogonal frequency-division multiplexing (OFDM) system is provided. A signal processing device receives an OFDM symbol and processes the OFDM symbol according to the OFDM symbol and a carrier frequency offset compensation coefficient to generate a processed signal. The OFDM symbol includes pilots which have been hierarchically modulated and the processed signal includes the processed pilots. A signal analysis device collects the processed pilots of the processed signal and detects carrier frequency offset to generate the carrier frequency offset compensation coefficient to the signal processing device according to the processed pilots and a plurality of target decision bit error rates. A channel detection module detects a channel response of the processed signal according to the processed pilots and compensates the processed signal to generate an output data.
摘要翻译：提供了一种用于正交频分复用（OFDM）系统的接收机。信号处理装置接收OFDM符号并根据OFDM符号处理OFDM符号和载波频率偏移补偿系数以产生处理信号。 OFDM符号包括已经被分层调制的导频，并且处理的信号包括处理的导频。信号分析装置收集经处理的信号的处理后的导频，并根据处理的导频和多个目标判定比特错误率检测载波频率偏移量，以向信号处理装置产生载频偏移补偿系数。信道检测模块根据处理的导频检测经处理的信号的信道响应，并补偿经处理的信号以产生输出数据。

2. 发明授权

US08503574B2 Methods for carrier frequency offset detection and compensation and transmitters and receivers utilizing the same 有权
标题翻译：用于载波频偏检测和补偿的方法以及利用其的发射机和接收机
公开(公告)号：US08503574B2
公开(公告)日：2013-08-06
申请号：US12785740
申请日：2010-05-24
申请人： Jing-Shown Wu , Hen-Wai Tsao , Yang-Han Lee , Yu-Lin Shiao
发明人： Jing-Shown Wu , Hen-Wai Tsao , Yang-Han Lee , Yu-Lin Shiao
IPC分类号： H04L27/00
CPC分类号： H04L27/2604 , H04L27/2659 , H04L27/3488
摘要： A transmitter includes an encoding module, an adaptive hierarchical signal mapping module and a transceiver module. The encoding module receives an input signal and encodes the input signal. The input signal includes data to be transmitted. The adaptive hierarchical signal mapping module modulates the encoded signal according to one or more hierarchical level distance ratios to obtain modulated symbols. The hierarchical level distance ratio defines distances between the modulated symbols. The transceiver module generates a radio frequency signal according to the modulated symbols and transmits the radio frequency signal to an air interface.
摘要翻译：发射机包括编码模块，自适应分层信号映射模块和收发模块。编码模块接收输入信号并对输入信号进行编码。输入信号包括要发送的数据。自适应分层信号映射模块根据一个或多个层级距离比调制编码信号以获得调制符号。层级距离比定义调制符号之间的距离。收发器模块根据调制符号生成射频信号，并将射频信号发送到空中接口。

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