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1. 发明授权

US08010099B2 Methods of reconfiguring sector coverage in in-building communications system 有权
标题翻译：重新配置楼宇内通信系统部门覆盖的方法
公开(公告)号：US08010099B2
公开(公告)日：2011-08-30
申请号：US11896558
申请日：2007-09-04
申请人： Zhengxiang Ma , Alistair Urie
发明人： Zhengxiang Ma , Alistair Urie
IPC分类号： H04W4/00
CPC分类号： H04B7/2606
摘要： In an in-building wireless communications network, a weighted sum of a downlink signal from two relevant base station interfaces (BSIs) is transmitted by a radio transceiver transitioning between two sectors. During a transition period, the weight of the combined downlink signal is adjusted gradually to simulate a smooth shift in the coverage of the sectors and transition the radio transceiver from a first sector to a second sector. This allows a base station to hand over users from a first sector to a second sector while suppressing any disruption in service.
摘要翻译：在室内无线通信网络中，来自两个相关基站接口（BSI）的下行链路信号的加权和由两个扇区之间的无线电收发器转发。在过渡期间，逐渐调整组合下行链路信号的权重，以模拟扇区覆盖范围内的平滑移位，并将无线电收发信机从第一扇区转移到第二扇区。这允许基站将用户从第一扇区切换到第二扇区，同时抑制任何服务中断。

2. 发明申请

US20090061771A1 Methods of reconfiguring sector coverage in in-building communications system 有权
标题翻译：重新配置楼宇内通信系统部门覆盖的方法
公开(公告)号：US20090061771A1
公开(公告)日：2009-03-05
申请号：US11896558
申请日：2007-09-04
申请人： Zhengxiang Ma , Alistair Urie
发明人： Zhengxiang Ma , Alistair Urie
IPC分类号： H04Q7/36 , H04B7/26
CPC分类号： H04B7/2606
摘要： In an in-building wireless communications network, a weighted sum of a downlink signal from two relevant base station interfaces (BSIs) is transmitted by a radio transceiver transitioning between two sectors. During a transition period, the weight of the combined downlink signal is adjusted gradually to simulate a smooth shift in the coverage of the sectors and transition the radio transceiver from a first sector to a second sector. This allows a base station to hand over users from a first sector to a second sector while suppressing any disruption in service.
摘要翻译：在室内无线通信网络中，来自两个相关基站接口（BSI）的下行链路信号的加权和由两个扇区之间的无线电收发器转发。在过渡期间，逐渐调整组合下行链路信号的权重，以模拟扇区覆盖范围内的平滑移位，并将无线电收发信机从第一扇区转移到第二扇区。这允许基站将用户从第一扇区切换到第二扇区，同时抑制任何服务中断。

3. 发明授权

US09002291B2 Standing wave detection method, standing wave detection apparatus and base station 有权
标题翻译：驻波检测方法，驻波检测装置和基站
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。

4. 发明授权

US08666428B2 Method to support user location in in-structure coverage systems 有权
标题翻译：在结构覆盖系统中支持用户位置的方法
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。

5. 发明申请

US20070161347A1 Enabling a digital wireless service for a mobile station across two different wireless communications environments 审中-公开
标题翻译：为跨越两个不同无线通信环境的移动台启用数字无线服务
公开(公告)号：US20070161347A1
公开(公告)日：2007-07-12
申请号：US11329370
申请日：2006-01-10
申请人： Zhengxiang Ma , Arnold Siegel , Theodore Sizer , Stephen Wilkus
发明人： Zhengxiang Ma , Arnold Siegel , Theodore Sizer , Stephen Wilkus
IPC分类号： H04B7/15
CPC分类号： H04B7/18506
摘要： A method and an apparatus for enabling a digital wireless service across a first and a second wireless communications environment is provided. The method comprises translating a receive signal carried on a forward link and having a first carrier frequency in the first wireless communications environment from a first frequency band to a second frequency band different from the first frequency band. The method further comprises translating a transmit signal carried on a reverse link and having a second carrier frequency in the first wireless communications environment from the second frequency band to the first frequency band. In this way, a digital wireless service may be provided between a mobile station and at least one base station on the ground across two different wireless communications environments. The method further comprises compensating Doppler shift separately for individual beams directed at a plurality of terrestrial base stations. The method further comprises injecting an additional path delay to insure that the terrestrial base stations receive reverse link signals at substantially similar round trip time offsets and to reduce search windows for the terrestrial base stations. In this way, a wireless communication system may enable in-flight use of a mobile station to communicate with one or more base stations on the ground.
摘要翻译：提供了一种用于在第一和第二无线通信环境中实现数字无线服务的方法和装置。该方法包括将在前向链路上承载的接收信号转换为第一无线通信环境中的第一载波频率从第一频带转换到与第一频带不同的第二频带。该方法还包括将在反向链路上承载的发送信号转换为第一无线通信环境中的从第二频带到第一频带的第二载波频率。以这种方式，可以在两个不同的无线通信环境之间的移动台和地面上的至少一个基站之间提供数字无线服务。该方法还包括分别针对指向多个地面基站的各个波束补偿多普勒频移。该方法还包括注入额外的路径延迟以确保地面基站以基本相似的往返时间偏移接收反向链路信号，并减少地面基站的搜索窗口。以这种方式，无线通信系统可以使移动台的飞行中使用能够与地面上的一个或多个基站进行通信。

6. 发明授权

US07194043B2 System and method for predistorting a signal to reduce out-of-band error 有权
标题翻译：用于预失真信号以减少带外误差的系统和方法
公开(公告)号：US07194043B2
公开(公告)日：2007-03-20
申请号：US10159657
申请日：2002-05-31
申请人： Zhengxiang Ma
发明人： Zhengxiang Ma
IPC分类号： H04L25/03 , H03F1/26
CPC分类号： H03F1/3247
摘要： A predistortion system uses spectral regrowth filtering in a feedback path thereof to reduce out-of-band error. An illustrative embodiment of the system includes a predistortion circuit which generates a predistorted signal, one or more signal processing elements configured to process the predistorted signal, and a feedback processing circuit coupled between an output of the one or more signal processing elements and a control input of the predistortion circuit. Associated with the feedback processing circuit is at least one spectral regrowth filter. The spectral regrowth filter is configured to pass an out-of-band portion of a feedback signal while attenuating an in-band portion of the feedback signal, and operates in conjunction with the feedback processing circuit to control one or more characteristics of the predistortion circuit.
摘要翻译：预失真系统在其反馈路径中使用频谱再生长滤波来减少带外误差。系统的说明性实施例包括产生预失真信号的预失真电路，被配置为处理预失真信号的一个或多个信号处理元件，以及耦合在一个或多个信号处理元件的输出和控制输入之间的反馈处理电路的预失真电路。与反馈处理电路相关联的是至少一个光谱再生长滤波器。频谱再生长滤波器被配置为在反馈信号的带内部分衰减期间传递反馈信号的带外部分，并且与反馈处理电路一起操作以控制预失真电路的一个或多个特性。

7. 发明授权

US08891647B2 System and method for user specific antenna down tilt in wireless cellular networks 有权
标题翻译：无线蜂窝网络中用户特定天线向下倾斜的系统和方法
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。

8. 发明申请

US20110194548A1 Method And Apparatus For Cellular Communication Over Data Networks 有权
标题翻译：数据网络蜂窝通信的方法与装置
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。

9. 发明申请

US20110103504A1 System and Method for User Specific Antenna Down Tilt in Wireless Cellular Networks 有权
标题翻译：无线蜂窝网络中用户特定天线向下倾斜的系统和方法
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。

10. 发明授权

US07680075B2 Identification of base stations 有权
标题翻译：识别基站
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。

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