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公开(公告)号：JP2011182390A
公开(公告)日：2011-09-15
申请号：JP2011023973
申请日：2011-02-07
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： FERNANDEZ-CORBATON IVAN , JALALI AHMAD , OZAKI ERNEST T , SIMON HARRIS SMITH , GREGORY SHERMAN A
CPC classification number: H01Q25/00
Abstract: 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&INPITAbstract translation: 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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公开(公告)号：AT344552T
公开(公告)日：2006-11-15
申请号：AT99937159
申请日：1999-06-14
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , GREGORY SHERMAN A
Abstract: A system and method for narrowing the range of frequency uncertainty of a Doppler shifted pilot signal in a satellite or other communications system with relative signal source and receiver motion. The satellite communications system includes a user terminal (for example, a mobile wireless telephone), a gateway (terrestrial base station), and at least one satellite with unknown position and unknown relative velocity. The method includes the steps of shifting the pilot signal over a plurality of frequency hypotheses, coherently accumulating samples of the pilot signal over a plurality of chips, measuring the energy of the accumulated pilot signal samples, accumulating the energy measurements over a plurality of chips to produce an energy accumulation value, and determining which of the plurality of frequency hypotheses results in the highest energy accumulation value.
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3.发明专利
公开(公告)号：AU760427B2
公开(公告)日：2003-05-15
申请号：AU5204399
申请日：1999-06-14
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , GREGORY SHERMAN A
Abstract: A system and method for narrowing the range of frequency uncertainty of a Doppler shifted pilot signal in a satellite or other communications system with relative signal source and receiver motion. The satellite communications system includes a user terminal (for example, a mobile wireless telephone), a gateway (terrestrial base station), and at least one satellite with unknown position and unknown relative velocity. The method includes the steps of shifting the pilot signal over a plurality of frequency hypotheses, coherently accumulating samples of the pilot signal over a plurality of chips, measuring the energy of the accumulated pilot signal samples, accumulating the energy measurements over a plurality of chips to produce an energy accumulation value, and determining which of the plurality of frequency hypotheses results in the highest energy accumulation value.
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4.发明专利
公开(公告)号：CA2335136A1
公开(公告)日：1999-12-23
申请号：CA2335136
申请日：1999-06-14
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , GREGORY SHERMAN A , BUTLER BRIAN K , AGRAWAL AVNEESH
Abstract: A system and method for narrowing the range of frequency uncertainty of a Doppler shifted pilot signal in a satellite or other communications system (100) with relative signal source and receiver motion. The satellite communications system (100) includes a user terminal (124, 126) (for example , a mobile wireless telephone), a gateway (120, 122, 112) (terrestrial base station), and at least one satellite (116, 118) with unknown position and unknown relative velocity. The method includes the steps of shifting the pil ot signal over a plurality of frequency hypotheses (309), coherently accumulati ng samples of the pilot signal over a plurality of chips (315), measuring the energy of the accumulated pilot signal samples (318), accumulating the energ y measurements over a plurality of chips to produce an energy accumulation val ue (321), and determining which of the plurality of frequency hypotheses result s in the highest energy accumulation value (324).
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Patent Agency Ranking5.发明专利
公开(公告)号：HK1038840A1
公开(公告)日：2002-03-28
申请号：HK02100008
申请日：2002-01-02
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , GREGORY SHERMAN A , BUTLER BRIAN K , AGRAWAL AVNEESH
Abstract: A system and method for narrowing the range of frequency uncertainty of a Doppler shifted pilot signal in a satellite or other communications system with relative signal source and receiver motion. The satellite communications system includes a user terminal (for example, a mobile wireless telephone), a gateway (terrestrial base station), and at least one satellite with unknown position and unknown relative velocity. The method includes the steps of shifting the pilot signal over a plurality of frequency hypotheses, coherently accumulating samples of the pilot signal over a plurality of chips, measuring the energy of the accumulated pilot signal samples, accumulating the energy measurements over a plurality of chips to produce an energy accumulation value, and determining which of the plurality of frequency hypotheses results in the highest energy accumulation value.
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公开(公告)号：IN2988CHN2014A
公开(公告)日：2015-07-03
申请号：IN2988CHN2014
申请日：2014-04-21
Applicant: QUALCOMM INC
Inventor： SOLIMAN SAMIR SALIB , GREGORY SHERMAN A
Abstract: Methods systems and devices are described for providing flexible bandwidth waveforms and channels for wireless communication. Embodiments may utilize portions of spectrum that may not be large enough to fit a standard or normal waveform. Chip rates may be adapted dynamically to generate and/or to receive flexible bandwidth waveforms to fit these portions of spectrum. Scaling factors and/or center frequencies may also be utilized to generate flexible waveforms. A mobile device may receive adjustment information from a base station so that the mobile device may dynamically adjust its chip rate to utilize a flexible bandwidth channel. A base station may simultaneously transmit on a normal bandwidth channel and a flexible bandwidth channel in some cases. Some flexible bandwidth waveforms may be utilized that are larger or take more bandwidth than a normal waveform. Flexible bandwidth may also be utilized to split and/or combine frequency channels.
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7.发明专利
公开(公告)号：AU5204399A
公开(公告)日：2000-01-05
申请号：AU5204399
申请日：1999-06-14
Applicant: QUALCOMM INC
Inventor： HARMS BRIAN , GREGORY SHERMAN A
Abstract: A system and method for narrowing the range of frequency uncertainty of a Doppler shifted pilot signal in a satellite or other communications system with relative signal source and receiver motion. The satellite communications system includes a user terminal (for example, a mobile wireless telephone), a gateway (terrestrial base station), and at least one satellite with unknown position and unknown relative velocity. The method includes the steps of shifting the pilot signal over a plurality of frequency hypotheses, coherently accumulating samples of the pilot signal over a plurality of chips, measuring the energy of the accumulated pilot signal samples, accumulating the energy measurements over a plurality of chips to produce an energy accumulation value, and determining which of the plurality of frequency hypotheses results in the highest energy accumulation value.
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公开(公告)号：WO2013070710A3
公开(公告)日：2013-08-15
申请号：PCT/US2012063880
申请日：2012-11-07
Applicant: QUALCOMM INC
Inventor： SOLIMAN SAMIR SALIB , GREGORY SHERMAN A
CPC classification number: H04W16/02 , H04W16/14 , H04W28/16 , H04W28/18 , H04W72/00 , H04W72/04 , H04W76/022
Abstract: Methods, systems, and devices are described for providing flexible bandwidth waveforms and channels for wireless communication. Embodiments may utilize portions of spectrum that may not be large enough to fit a standard or normal waveform. Chip rates may be adapted dynamically to generate and/or to receive flexible bandwidth waveforms to fit these portions of spectrum. Scaling factors and/or center frequencies may also be utilized to generate flexible waveforms. A mobile device may receive adjustment information from a base station so that the mobile device may dynamically adjust its chip rate to utilize a flexible bandwidth channel. A base station may simultaneously transmit on a normal bandwidth channel and a flexible bandwidth channel in some cases. Some flexible bandwidth waveforms may be utilized that are larger, or take more bandwidth, than a normal waveform. Flexible bandwidth may also be utilized to split and/or combine frequency channels.
Abstract translation: 描述了用于为无线通信提供灵活的带宽波形和信道的方法，系统和设备。 实施例可以利用可能不够大以适应标准或正常波形的频谱部分。 芯片速率可以动态调整以产生和/或接收灵活的带宽波形以适应这些频谱部分。 缩放因子和/或中心频率也可用于生成灵活的波形。 移动设备可以从基站接收调整信息，使得移动设备可以动态调整其码片速率以利用灵活的带宽信道。 在一些情况下，基站可以在正常带宽信道和灵活带宽信道上同时发送。 一些灵活的带宽波形可能比正常波形更大，或占用更多带宽。 灵活的带宽也可以用来分割和/或组合频道。
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9.发明申请WIRELESS COMMUNICATIONS SYSTEM USING SPATIALLY DISTRIBUTED SECTORS IN CONFINED ENVIRONMENTS 审中-公开使用空间分布区域在有形环境中的无线通信系统
公开(公告)号：WO2008005917A3
公开(公告)日：2008-02-21
申请号：PCT/US2007072636
申请日：2007-07-02
Applicant: QUALCOMM INC , GREGORY SHERMAN A , SMEE JOHN
Inventor： GREGORY SHERMAN A , SMEE JOHN
CPC classification number: H04B7/0613 , H04B7/0491 , H04B7/0837 , H04W16/24 , H04W84/005 , Y02D70/00 , Y02D70/444
Abstract: A base station for establishing a picocell is configured so as to provide multiple sectors, with spatial diversity between sectors. The combination of the multiple sectors and the spatial diversity reduces signal power requirements in the air interface within a confined space and provides improvements in quality of service.
Abstract translation: 用于建立微微小区的基站被配置为提供多个扇区，在扇区之间具有空间分集。 多个扇区和空间分集的组合降低了在限制空间内的空中接口中的信号功率需求，并提供了服务质量的改进。
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