公开(公告)号：US08891647B2

公开(公告)日：2014-11-18

申请号：US12915525

申请日：2010-10-29

申请人： Zhengxiang Ma

发明人： Zhengxiang Ma

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/063 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0684

摘要： Systems and methods for user specific antenna down tilt in wireless cellular networks are disclosed. A preferred embodiment method comprises synthesizing a plurality of virtual antennas from a single physical antenna, wherein a total number of virtual antennas is less than a total number of antenna elements in the physical antenna, transmitting pilot signals on the plurality of virtual antennas, receiving, from a user equipment, a pre-coding control indicator based on the transmitted pilot signals, determining a multiple-input multiple output pre-coding vector based on the pre-coding control indicator, and transmitting user data modulated by the pre-coding vector to the user equipment via the plurality of virtual antennas.

摘要翻译： 公开了用于无线蜂窝网络中用户特定天线向下倾斜的系统和方法。 优选实施例的方法包括从单个物理天线合成多个虚拟天线，其中虚拟天线的总数小于物理天线中天线元件的总数，在多个虚拟天线上发送导频信号， 基于所述发送的导频信号的预编码控制指示符，基于所述预编码控制指示符来确定多输入多输出预编码向量，以及将由所述预编码矢量调制的用户数据发送到 经由多个虚拟天线的用户设备。

公开(公告)号：US20110194548A1

公开(公告)日：2011-08-11

申请号：US13089351

申请日：2011-04-19

申请人： Peretz Moshes Feder ,  Jungsang Kim ,  Zhengxiang Ma ,  Anatoli Olkhovets ,  Arnold B. Siegel ,  Theodore Sizer, II ,  Michael George Zierdt

发明人： Peretz Moshes Feder ,  Jungsang Kim ,  Zhengxiang Ma ,  Anatoli Olkhovets ,  Arnold B. Siegel ,  Theodore Sizer, II ,  Michael George Zierdt

IPC分类号： H04W4/00

CPC分类号： H04W4/04 ,  H04W28/06 ,  H04W84/042 ,  H04W88/085

摘要： Cellular signals or other wireless signals/messages are introduced into a building or to an outside location by transmitting packets corresponding to those signals over a data network and low cost cables to designated locations within the data network. Once the designated packets containing the signals reach the destination, they are then broadcast over the air to a terminal capable of receiving the wireless message. In a first embodiment, an in-building gigabit Ethernet network, such as that currently existing presently in many buildings, is used to distribute radio signals indoors. Instead of transmitting the radio signals over the air from a repeater connected to a base station, coded baseband signals generated by the coding processor (e.g., a CDMA Modem Unit) in the base station are packetized and sent over the Ethernet network to radio processing equipment and antennas distributed throughout the building. The radio processing equipment strips the packet headers from the baseband signal packets so those signals can be broadcast via the antennas to one or more mobile terminals.

摘要翻译： 蜂窝信号或其他无线信号/消息通过在数据网络上传送与这些信号相对应的数据包和低成本电缆到数据网络中的指定位置而被引入建筑物或外部位置。 一旦包含信号的指定分组到达目的地，则它们然后通过空中广播到能够接收无线消息的终端。 在第一实施例中，使用诸如目前在许多建筑物中当前存在的建筑物内的千兆以太网网络来在室内分配无线电信号。 代替从连接到基站的中继器通过空中传送无线电信号，由基站中的编码处理器（例如，CDMA调制解调器单元）生成的编码基带信号被分组并通过以太网发送到无线电处理设备 和分布在整个建筑物的天线。 无线电处理设备从基带信号分组剥离分组报头，从而可以经由天线将信号广播到一个或多个移动终端。

公开(公告)号：US20110103504A1

公开(公告)日：2011-05-05

申请号：US12915525

申请日：2010-10-29

申请人： Zhengxiang Ma

发明人： Zhengxiang Ma

IPC分类号： H04B7/02

CPC分类号： H04B7/063 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0684

摘要： Systems and methods for user specific antenna down tilt in wireless cellular networks are disclosed. A preferred embodiment method comprises synthesizing a plurality of virtual antennas from a single physical antenna, wherein a total number of virtual antennas is less than a total number of antenna elements in the physical antenna, transmitting pilot signals on the plurality of virtual antennas, receiving, from a user equipment, a pre-coding control indicator based on the transmitted pilot signals, determining a multiple-input multiple output pre-coding vector based on the pre-coding control indicator, and transmitting user data modulated by the pre-coding vector to the user equipment via the plurality of virtual antennas.

摘要翻译： 公开了用于无线蜂窝网络中用户特定天线向下倾斜的系统和方法。 优选实施例的方法包括从单个物理天线合成多个虚拟天线，其中虚拟天线的总数小于物理天线中天线元件的总数，在多个虚拟天线上发送导频信号， 基于所述发送的导频信号的预编码控制指示符，基于所述预编码控制指示符来确定多输入多输出预编码向量，以及将由所述预编码矢量调制的用户数据发送到 经由多个虚拟天线的用户设备。

公开(公告)号：US07680075B2

公开(公告)日：2010-03-16

申请号：US11435664

申请日：2006-05-17

申请人： Zhengxiang Ma ,  Paul Anthony Polakos

发明人： Zhengxiang Ma ,  Paul Anthony Polakos

IPC分类号： H04W4/00

CPC分类号： H04W48/08 ,  H04B1/7083 ,  H04B2201/70702 ,  H04J13/0029 ,  H04W48/16

摘要： The identification of wireless communication base stations in a region of high base station density is effected using a specific identification signal pattern transmitted by the base stations. In particular, each base station transmits a signal having a pattern with at least two time phase shifts relative to at least one time benchmark. The combination of these phase shifts allows identification of the transmitting base station. Since a plurality of phase shifts leads to a concomitantly larger number of phase shift combinations, the capacity to identify base stations is enlarged.

摘要翻译： 使用由基站发送的特定识别信号模式来实现高基站密度区域中的无线通信基站的识别。 具体地，每个基站相对于至少一个时间基准来发送具有至少两个时间相移的模式的信号。 这些相移的组合允许识别发射基站。 由于多个相移导致相对较大数量的相移组合，所以识别基站的容量被扩大。

公开(公告)号：US20070268853A1

公开(公告)日：2007-11-22

申请号：US11435664

申请日：2006-05-17

申请人： Zhengxiang Ma ,  Paul Anthony Polakos

发明人： Zhengxiang Ma ,  Paul Anthony Polakos

IPC分类号： H04Q7/00

CPC分类号： H04W48/08 ,  H04B1/7083 ,  H04B2201/70702 ,  H04J13/0029 ,  H04W48/16

摘要： The identification of wireless communication base stations in a region of high base station density is effected using a specific identification signal pattern transmitted by the base stations. In particular, each base station transmits a signal having a pattern with at least two time phase shifts relative to at least one time benchmark. The combination of these phase shifts allows identification of the transmitting base station. Since a plurality of phase shifts leads to a concomitantly larger number of phase shift combinations, the capacity to identify base stations is enlarged.

摘要翻译： 使用由基站发送的特定识别信号模式来实现高基站密度区域中的无线通信基站的识别。 具体地，每个基站相对于至少一个时间基准来发送具有至少两个时间相移的模式的信号。 这些相移的组合允许识别发射基站。 由于多个相移导致相对较大数量的相移组合，所以识别基站的容量被扩大。

公开(公告)号：US06654427B1

公开(公告)日：2003-11-25

申请号：US09363329

申请日：1999-07-28

申请人： Zhengxiang Ma ,  Paul Anthony Polakos

发明人： Zhengxiang Ma ,  Paul Anthony Polakos

IPC分类号： H04L2503

CPC分类号： H03F1/3241 ,  H03F2201/3236 ,  H04B1/0475

摘要： A signal notching system reduces signal peaks by notching the peak of a signal above a threshold to produce a notched signal. The notched signal is then filtered to produce a resulting signal with a reduced peak amplitude. For example, in an implementation where the signal is represented by signal samples, the peak notching system first locates a peak sample that is beyond a threshold, such as a sample representing a positive peak sample of a peak above the threshold. Once a peak sample is located, the peak notching system adjusts the peak sample by an amount which is a function of the amount that the peak sample is beyond the threshold, effectively creating a notched signal with a one sample notch at the peak. The peak notching system filters the notched signal to fill in the notch to produce a signal with a reduced peak.

摘要翻译： 信号切口系统通过在高于阈值的情况下切断信号的峰值来减小信号峰值，以产生陷波信号。 然后对切口信号进​​行滤波以产生具有减小的峰值幅度的结果信号。 例如，在信号由信号样本表示的实施例中，峰值切口系统首先定位超过阈值的峰值样本，例如表示高于阈值的峰值的正峰值样本的样本。 一旦找到峰值样本，峰值切口系统将峰值采样值调整为峰值采样超过阈值的量的函数，有效地创建峰值处的一个采样缺口的缺口信号。 峰值切口系统对陷波信号进行滤波以填充陷波，产生峰值降低的信号。

公开(公告)号：US06356168B1

公开(公告)日：2002-03-12

申请号：US09666192

申请日：2000-09-21

申请人： Ron Barnett ,  Zhengxiang Ma ,  Louis Thomas Manzione ,  Richard F. Schwartz ,  Hui Wu

发明人： Ron Barnett ,  Zhengxiang Ma ,  Louis Thomas Manzione ,  Richard F. Schwartz ,  Hui Wu

IPC分类号： H01P1203

CPC分类号： H01P1/20381 ,  H01P11/007

摘要： A high-frequency, e.g., microwave, filter (100, 300, 400) is made, e.g., stamped or etched, from a single sheet (110, 310, 410) of electrically conductive material, e.g., a metal plate or a printed circuit board. The sheet defines a frame (112, 312, 412-413), one or more resonant filter elements (114, 311-315, 411-415) inside of the frame, one or more supports (116, 316-317, 416) connecting each resonant filter element to the frame, and a flange (118, 318, 418) on one of the resonant filter elements. The flange serves as an electrical contact to the filter; another flange (317, 417) on another element, or the frame itself, serves as a second contact. An electrically conductive housing (104, 304, 404) encapsulates both faces of the sheet.

摘要翻译： 高频例如微波滤波器（100,300,400）由诸如金属板或印刷的单个片材（110,310,410）制成例如冲压或蚀刻 电路板。 片材限定框架（112,312,412-413），框架内部的一个或多个谐振滤波器元件（114,31-315,411-415），一个或多个支撑件（116,316-317,416） 将每个谐振滤波器元件连接到所述框架，以及在所述谐振滤波器元件之一上的凸缘（118,318,418）。 凸缘用作与过滤器的电接触; 另一元件上的另一凸缘（317,417）或框架本身用作第二触点。 导电壳体（104,304,404）封装片材的两个面。

公开(公告)号：US6114758A

公开(公告)日：2000-09-05

申请号：US138102

申请日：1998-08-21

申请人： Alfredo Carlos Anderson ,  Zhengxiang Ma ,  Paul Anthony Polakos ,  Hui Wu

发明人： Alfredo Carlos Anderson ,  Zhengxiang Ma ,  Paul Anthony Polakos ,  Hui Wu

IPC分类号： H01P1/203 ,  H01L23/02 ,  H01L23/10 ,  H01L23/52

CPC分类号： H01P1/203

摘要： The disclosed superconducting multipole RF filter comprises a multiplicity of coupled circular disk resonators designed for operation in the TM 010 mode. The disk resonators are arranged in a co-axial stack, with a circular metal spacer sandwiched between any two neighboring disk resonators. Each metal spacer has a central through-aperture, with a conductive member disposed in the through-aperture and electrically connecting the two neighboring disk resonators that are sandwiching a given metal spacer. A disk resonator comprises two circular members, each circular member comprising a circular dielectric substrate, exemplarily a LaAlO.sub.3 wafer. Superconducting layers (typically YBCO) are disposed on each major surface of the substrate. The two members are joined together such that conductive layers (typically gold) electrically connect the two outside superconducting layers. The disclosed RF filter has good power handling capability, is compact, has good heat removal and relatively simple tuning. It can, for instance, be advantageously used as transmit filter in base stations of a wireless communication system.

摘要翻译： 所公开的超导多极RF滤波器包括设计用于在TM 010模式下操作的多个耦合的圆盘谐振器。 磁盘谐振器被布置在同轴的堆叠中，其中圆形金属间隔件夹在任何两个相邻的磁盘谐振器之间。 每个金属间隔物具有中心通孔，导电构件设置在通孔中并电连接夹着给定金属间隔物的两个相邻盘谐振器。 盘式谐振器包括两个圆形构件，每个圆形构件包括圆形电介质衬底，例如LaAlO 3晶片。 超导层（通常为YBCO）设置在基板的每个主表面上。 两个构件连接在一起，使得导电层（通常为金）电连接两个外部超导层。 所公开的RF滤波器具有良好的功率处理能力，紧凑，具有良好的散热和相对简单的调谐。 例如，它可以有利地用作无线通信系统的基站中的发射滤波器。

公开(公告)号：US09002291B2

公开(公告)日：2015-04-07

申请号：US13572595

申请日：2012-08-10

申请人： Shaofeng Xu ,  Zhengxiang Ma ,  Siqing Ye ,  Wei Wang ,  Pengfei Luo

发明人： Shaofeng Xu ,  Zhengxiang Ma ,  Siqing Ye ,  Wei Wang ,  Pengfei Luo

IPC分类号： H04B17/00 ,  H04B1/04

CPC分类号： H04B1/0466 ,  H04B17/103

摘要： A standing wave detection method, a standing wave detection apparatus, and a base station are disclosed. The method includes collecting, a feedback signal from a feedback path of a base station which uses a baseband multi-tone signal as a transmission signal; performing calibration on the feedback signal by using stored calibration data to obtain a reflected signal in the feedback signal; and obtaining a standing wave detection value according to the transmission signal and the reflected signal that is in the feedback signal.

摘要翻译： 公开了驻波检测方法，驻波检测装置和基站。 该方法包括从使用基带多音调信号的基站的反馈路径收集反馈信号作为发送信号; 通过使用存储的校准数据对反馈信号执行校准以获得反馈信号中的反射信号; 并根据发送信号和反馈信号中的反射信号获得驻波检测值。

公开(公告)号：US08666428B2

公开(公告)日：2014-03-04

申请号：US12010668

申请日：2008-01-29

申请人： Zhengxiang Ma ,  Theodore Sizer, II

发明人： Zhengxiang Ma ,  Theodore Sizer, II

IPC分类号： H04W24/00

CPC分类号： G01S1/68 ,  G01S13/878

摘要： In an example embodiment of the present invention, the method includes creating a plurality of data packets. Each data packet in the plurality of data packets includes a plurality of coded cellular signals. The plurality of data packets are sent over a data network associated with at least one sector served by a plurality of transceivers, and at least one of the plurality of transceivers broadcasts the data packets. A location of a mobile station is determined based on received multi-paths associated with response from the mobile station to broadcast of at least one of the plurality of data packets.

摘要翻译： 在本发明的示例性实施例中，该方法包括创建多个数据分组。 多个数据分组中的每个数据分组包括多个编码的蜂窝信号。 多个数据分组通过与由多个收发器服务的至少一个扇区相关联的数据网络发送，并且多个收发机中的至少一个收发器广播数据分组。 基于与来自移动台的响应相关联的接收的多路径来确定移动站的位置以广播多个数据分组中的至少一个。