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1. 发明专利

JP2011182390A Antenna array pattern distortion mitigation 审中-公开
标题翻译：天线阵列失真减缓
公开(公告)号：JP2011182390A
公开(公告)日：2011-09-15
申请号：JP2011023973
申请日：2011-02-07
申请人： Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人： FERNANDEZ-CORBATON IVAN , JALALI AHMAD , OZAKI ERNEST T , SIMON HARRIS SMITH , GREGORY SHERMAN A
IPC分类号： H04B7/10 , H04B7/06
CPC分类号： H01Q25/00
摘要： PROBLEM TO BE SOLVED: To provide a way to perform point-to-multipoint transmission using an adaptive or directional antenna while reducing an antenna array pattern distortion.
SOLUTION: Generally, rather than transmitting a same waveform to two or more receivers, an information bearing signal is transformed into different decorrelated waveforms and each decorrelated waveform is transmitted to a different receiver. In one implementation, an information bearing signal is transformed into two decorrelated signals S
1 (t), S
2 (t), such that their cross-correlation or auto-correlation of the information bearing signal, is zero or very small. Such decorrelation may be achieved by sending a first signal to a first receiver 104, while sending a second signal with a radio frequency spectrum that is the spectrally inverted version of the first signal to a second receiver 106. In another implementation, a first signal is transmitted to the first receiver 104, and is also transmitted to the second receiver 106 with a time delay.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用自适应或定向天线执行点对多点传输的方法，同时减少天线阵列模式失真。解决方案：通常，不是向两个或更多个接收器发送相同的波形，而是将信息承载信号转换成不同的去相关波形，并将每个去相关的波形传输到不同的接收机。在一个实现中，信息承载信号被变换成两个去相关信号S SB S（t），S SB SB（t），使得它们的互相关或自相关的信息轴承信号，为零或非常小。这种去相关可以通过向第一接收机104发送第一信号，同时以具有第一信号的频谱反转版本的射频频谱向第二接收机106发送第二信号来实现。在另一实现中，第一信号是发送到第一接收机104，并且也以时间延迟发送到第二接收机106。版权所有（C）2011，JPO＆INPIT

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