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1. 发明申请

WO2009156510A3 OWN TRANSMITTER INTERFERENCE TOLERANT TRANSCEIVER AND RECEIVING METHODS 审中-公开
标题翻译： OWN发射机干扰容限收发器和接收方法
公开(公告)号：WO2009156510A3
公开(公告)日：2010-04-15
申请号：PCT/EP2009058054
申请日：2009-06-26
申请人： ERICSSON TELEFON AB L M , WILKINSON DENT PAUL , MATTISSON SVEN
发明人： WILKINSON DENT PAUL , MATTISSON SVEN
IPC分类号： H04B1/52 , H04B1/10
CPC分类号： H04B1/525 , H04B1/109
摘要： Circuits and methods are disclosed for reducing interference from transmitter leakage in a radio transceiver. An exemplary method for reducing interference from transmitter leakage in a radio transceiver comprises downconverting, filtering, and sampling a radio frequency signal comprising a desired signal and a transmitter leakage signal to obtain a sampled signal of interest. The method further comprises generating a sampled distortion signal estimate that estimates one or more distortion products of the transmitter leakage signal, such as a squared amplitude obtained from a square-law device (206) or corresponding digital function (406). Further, the method comprises dividing the sampled distortion signal estimate and the sampled signal of interest into a plurality of frequency channels. Finally, for a selected number of frequency channels, the method comprises combining the sampled distortion signal estimate for a frequency channel with the corresponding sampled signal of interest for the same frequency channel to obtain interference-reduced signal samples for the frequency channel.
摘要翻译：公开了用于减少无线电收发器中发射机泄漏的干扰的电路和方法。用于减少无线电收发机中的发射机泄漏的干扰的示例性方法包括对包括期望信号和发射机泄漏信号的射频信号进行下变频，滤波和采样，以获得感兴趣的采样信号。该方法还包括产生估计发射机泄漏信号的一个或多个失真产物的采样失真信号估计，例如从平方律装置（206）获得的平方振幅或相应的数字功能（406）。此外，该方法包括将采样的失真信号估计和所获取的采样信号分成多个频率信道。最后，对于选定数量的频道，该方法包括将用于频率信道的采样失真信号估计与相同频率信道的对应采样信号组合，以获得用于频率信道的干扰减小信号样本。

2. 发明申请

WO2008077820A1 DIGITALLY CONTROLLED ANALOG FREQUENCY SYNTHESIZER 审中-公开
标题翻译：数字控制模拟频率合成器
公开(公告)号：WO2008077820A1
公开(公告)日：2008-07-03
申请号：PCT/EP2007/063961
申请日：2007-12-14
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , WILKINSON DENT, Paul , KLEMMER, Nikolaus
发明人： WILKINSON DENT, Paul , KLEMMER, Nikolaus
IPC分类号： H03L7/085 , H03L7/18
CPC分类号： H03L7/091 , H03L7/087 , H03L7/093
摘要： A frequency synthesizer according to the present invention digitally controls an analog oscillator to generate an analog output signal at a desired frequency. A digitizing circuit converts a feedback signal derived from the oscillator output signal to a digitized multi-phase feedback signal. A comparator compares the digitized multi-phase feedback signal to a reference signal generated by the reference signal generator to generate an error signal indicative of the phase error in the output signal. A control circuit generates a control signal based on the error signal to control the frequency of the oscillator output signal.
摘要翻译：根据本发明的频率合成器数字地控制模拟振荡器以期望的频率产生模拟输出信号。数字化电路将从振荡器输出信号导出的反馈信号转换为数字化的多相反馈信号。比较器将数字化的多相反馈信号与由参考信号发生器产生的参考信号进行比较，以产生指示输出信号中的相位误差的误差信号。控制电路根据误差信号产生控制信号，以控制振荡器输出信号的频率。

3. 发明申请

WO2009156510A2 OWN TRANSMITTER INTERFERENCE TOLERANT TRANSCEIVER AND RECEIVING METHODS 审中-公开
标题翻译： OWN发射机干扰容限收发器和接收方法
公开(公告)号：WO2009156510A2
公开(公告)日：2009-12-30
申请号：PCT/EP2009/058054
申请日：2009-06-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WILKINSON DENT, Paul , MATTISSON, Sven
发明人： WILKINSON DENT, Paul , MATTISSON, Sven
IPC分类号： H04B1/52 , H04B1/10
CPC分类号： H04B1/525 , H04B1/109
摘要： Circuits and methods are disclosed for reducing interference from transmitter leakage in a radio transceiver. An exemplary method for reducing interference from transmitter leakage in a radio transceiver comprises downconverting, filtering, and sampling a radio frequency signal comprising a desired signal and a transmitter leakage signal to obtain a sampled signal of interest. The method further comprises generating a sampled distortion signal estimate that estimates one or more distortion products of the transmitter leakage signal, such as a squared amplitude obtained from a square-law device (206) or corresponding digital function (406). Further, the method comprises dividing the sampled distortion signal estimate and the sampled signal of interest into a plurality of frequency channels. Finally, for a selected number of frequency channels, the method comprises combining the sampled distortion signal estimate for a frequency channel with the corresponding sampled signal of interest for the same frequency channel to obtain interference-reduced signal samples for the frequency channel.
摘要翻译：公开了用于减少无线电收发器中发射机泄漏的干扰的电路和方法。用于减少无线电收发机中的发射机泄漏的干扰的示例性方法包括对包括期望信号和发射机泄漏信号的射频信号进行下变频，滤波和采样，以获得感兴趣的采样信号。该方法还包括产生估计发射机泄漏信号的一个或多个失真产物的采样失真信号估计，例如从平方律装置（206）获得的平方振幅或相应的数字功能（406）。此外，该方法包括将采样的失真信号估计和所获取的采样信号分成多个频率信道。最后，对于选定数量的频道，该方法包括将用于频率信道的采样失真信号估计与相同频率信道的对应采样信号组合，以获得用于频率信道的干扰减小信号样本。

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