公开(公告)号：US20140064399A1

公开(公告)日：2014-03-06

申请号：US14078949

申请日：2013-11-13

申请人： Yair Oren ,  Igor Berlin ,  Ofer Saban ,  Isaac Shapira ,  Rami Reuven

发明人： Yair Oren ,  Igor Berlin ,  Ofer Saban ,  Isaac Shapira ,  Rami Reuven

IPC分类号： H04B7/04

CPC分类号： H04B7/0413 ,  H04B1/40 ,  H04B7/022 ,  H04B7/0602 ,  H04B10/271

摘要： A method and system for supporting M1MO technologies which can require the transport of multiple spatial streams on a traditional Distributed Antenna System (DAS). According to the invention, at one end of the DAS, each spatial stream is shifted in frequency to a pre-assigned band (such as a band at a frequency lower than the native frequency) that does not overlap the band assigned to other spatial streams (or the band of any other services being carried by the DAS). Each of the spatial streams can be combined and transmitted as a combined signal over a common coaxial cable. At the other “end” of the DAS, the different streams are shifted back to their original (overlapping) frequencies but retain their individual “identities” by being radiated through physically separate antenna elements.

摘要翻译： 一种用于支持M1MO技术的方法和系统，其可以要求在传统的分布式天线系统（DAS）上传输多个空间流。 根据本发明，在DAS的一端，每个空间流在频率上移动到不与分配给其他空间流的频带重叠的预分配频带（例如频率低于本机频率的频带） （或由DAS携带的任何其他服务的乐队）。 每个空间流可以组合并通过公共同轴电缆作为组合信号传输。 在DAS的另一个“端”处，不同的流被移回到它们的原始（重叠）频率，但是通过物理上分离的天线元件辐射来保持其各自的“身份”。

公开(公告)号：US08594133B2

公开(公告)日：2013-11-26

申请号：US12739143

申请日：2008-10-22

申请人： Isaac Shapira ,  Ofer Saban ,  Yair Zeev Shapira

发明人： Isaac Shapira ,  Ofer Saban ,  Yair Zeev Shapira

IPC分类号： H04J3/06

CPC分类号： H04L7/0331 ,  H04J1/06 ,  H04L7/0083

摘要： A high frequency signal is down-converted into an intermediate frequency signal, transmitted over a limited bandwidth medium from a master unit to a remote unit and up-converted back into its original high frequency at the remote unit. The up-conversion is aided by reconstruction of a reference signal embedded at the master unit as a carrier for a management signal which is transmitted to the remote unit through the same limited bandwidth medium together with the intermediate frequency signal. The reference signal is reconstructed using a phase locked loop which includes a charge pump and is kept stable during intervals between bits and messages by a charge pump shutter.

摘要翻译： 高频信号被下变频成中频信号，通过有限带宽介质从主单元传输到远程单元，并在远程单元上被上转换回其原始高频。 通过重构嵌入在主单元中的参考信号作为管理信号的载体来辅助上转换，该管理信号通过与中频信号一起通过相同的有限带宽介质发送到远程单元。 使用包括电荷泵的锁相环重建参考信号，并且通过电荷泵快门在位和消息之间的间隔期间保持稳定。

公开(公告)号：US20130295980A1

公开(公告)日：2013-11-07

申请号：US13873927

申请日：2013-04-30

申请人： CORNING MOBILEACCESS LTD.

发明人： Rami Reuven ,  Ofer Saban ,  Isaac Shapira

IPC分类号： H04B17/00

CPC分类号： H04B17/345

摘要： Determining noise levels in frequency band(s) for communications paths in distributed antenna systems. Noise may be induced in communications paths in distributed antenna system as a result of electromagnetic interference from communications media located in close proximity and/or from other electronic devices. Noise induced on communications media may not be evenly distributed across the frequency spectrum, but instead concentrated in certain portions of the frequency spectrum. The frequency band(s) of communication signals distributed in the distributed antenna systems may be adjusted to be provided outside of frequency band(s) having unacceptable noise levels. In this manner, the communications performance (e.g., the signal-to-noise (S/N) ratio) of communications signals communicated in the distributed antenna systems may be improved.

摘要翻译： 确定分布式天线系统中通信路径的频带噪声水平。 在分布式天线系统的通信路径中，由于位于紧邻的通信介质和/或来自其它电子设备的电磁干扰，可能会引起噪声。 在通信媒体上引起的噪声可能不会在频谱上均匀分布，而是集中在频谱的某些部分。 分布在分布式天线系统中的通信信号的频带可以被调整为提供在具有不可接受的噪声电平的频带之外。 以这种方式，可以提高在分布式天线系统中通信的通信信号的通信性能（例如，信噪比（S / N）比））。

公开(公告)号：US08325693B2

公开(公告)日：2012-12-04

申请号：US12944964

申请日：2010-11-12

申请人： Ami Hazani ,  Shlomo Butbul ,  Yehuda Binder

发明人： Ami Hazani ,  Shlomo Butbul ,  Yehuda Binder

IPC分类号： H04W4/00 ,  H04L12/28 ,  H04J3/16 ,  H04B1/38

CPC分类号： H04L5/14 ,  H04L5/06 ,  H04L27/2601

摘要： A device, network and method wherein a standard wireless modem is coupled to wiring for carrying a wireless baseband signal that may be OFDM based, and may be directly generated by the wireless IF modem, or extracted from the modem RF signal. The wiring may be a building utility wiring, such as telephone, AC power or CATV wiring. The baseband signal is carried simultaneously with the utility service signal over the utility wiring using Frequency Division Multiplexing. The device may be enclosed with a data unit, a standalone dedicated enclosure, within an outlet or as a plug-in outlet adapter. Data units may couple the device by a wiring port such as standard data connector, or via wireless connection. The device may be locally powered or via a power signal carried over the wiring. This abstract is not intended to limit or construe the scope of the claims.

公开(公告)号：US08121646B2

公开(公告)日：2012-02-21

申请号：US12016459

申请日：2008-01-18

申请人： Yair Oren ,  Igor Berlin ,  Ofer Saban

发明人： Yair Oren ,  Igor Berlin ,  Ofer Saban

IPC分类号： H04M1/00

CPC分类号： H04B1/0064 ,  H04B7/06 ,  H04B7/08 ,  H04B17/12 ,  H04B17/21 ,  H04W88/085

摘要： The invention is directed to a method and system for equalizing the signal losses over cable runs in a Distributed Antenna System (DAS). In a DAS, two or more antennae are connected to the system by cable runs that can vary widely in length. As a result, the signal loss over a given cable run can also vary widely which can impact the design and deployment of the DAS and reduce antenna spacing. In addition, for a broadband DAS that supports many frequency bands or ranges using a common antenna unit, the signal losses vary with respect to frequency further making it difficult to equalize the cable losses. According to one embodiment of the invention, the method and system provide for measuring and adjusting the signal losses of each cable run to be a predefined value. According to another embodiment of the invention, the DAS can include a hybrid passive-active antenna unit which includes a frequency multiplexer that separates the signal into frequency bands or ranges that are connected to an antenna element associated with a particular frequency band or range. Where a single frequency band needs to be amplified (or attenuated), a single band amplification block (SBAB) can be inserted in the connection between the frequency multiplexer and the antenna element to amplify (or attenuate) the desired frequency band. Where more than one frequency band need to be amplified (or attenuated), a multiband amplification block (MBAB) can be inserted in the connection between the frequency multiplexer and the appropriate antenna element to amplify (or attenuate) the desired frequency bands.

摘要翻译： 本发明涉及一种用于均衡分布式天线系统（DAS）中的电缆运行的信号损耗的方法和系统。 在DAS中，两个或更多个天线通过长度可能变化很大的电缆连接到系统。 因此，给定电缆运行时的信号损耗也可能变化很大，这可能会影响DAS的设计和部署，并减少天线间距。 此外，对于支持使用公共天线单元的许多频带或范围的宽带DAS，信号损耗相对于频率而变化，进一步使得难以平衡电缆损耗。 根据本发明的一个实施例，该方法和系统提供了将每个电缆运行的信号损耗测量和调整为预定值。 根据本发明的另一实施例，DAS可以包括混合无源 - 有源天线单元，其包括频率复用器，其将信号分离成与特定频带或范围相关联的天线元件连接的频带或范围。 在单个频带需要被放大（或衰减）的情况下，可以在频率复用器和天线元件之间的连接中插入单频带放大块（SBAB）以放大（或衰减）期望的频带。 在需要放大（或衰减）多于一个频带的情况下，可以在频率多路复用器和适当的天线元件之间的连接中插入多频带放大块（MBAB）以放大（或衰减）期望的频带。

公开(公告)号：US20150109044A1

公开(公告)日：2015-04-23

申请号：US14061037

申请日：2013-10-23

申请人： Corning MobileAccess Ltd.

发明人： Pavel Rozenbaum

IPC分类号： H03K5/003

CPC分类号： H03K5/003

摘要： Embodiments disclosed include variable amplitude signal generators for generating a sinusoidal signal having limited direct current (DC) offset variation and related devices and methods. Instead of employing a single pulse width modulation (PWM) signal to generate a sinusoidal signal, in one embodiment, a circuit is provided that generates two PWM signals. The first PWM signal is a high-to-low PWM signal, where the active state is a lower signal level. The second PWM signal is a low-to-high PWM signal where active state is a higher signal level. The first and second PWM signals are combined to provide a summed signal, which is filtered to generate a sinusoidal signal. The DC offset of the first PWM signal varies inversely to the DC offset of the second PWM signal. In this manner, distortions caused by variations in the DC offset present in the generated sinusoidal signal are limited (i.e., reduced or eliminated).

摘要翻译： 所公开的实施例包括可变幅度信号发生器，用于产生具有有限的直流（DC）偏移变化的正弦信号和相关的装置和方法。 代替使用单个脉宽调制（PWM）信号来产生正弦信号，在一个实施例中，提供产生两个PWM信号的电路。 第一个PWM信号是一个高到低的PWM信号，其中有效状态是较低的信号电平。 第二个PWM信号是低至高的PWM信号，其中有效状态是较高的信号电平。 第一和第二PWM信号被组合以提供相加的信号，其被滤波以产生正弦信号。 第一PWM信号的DC偏移与第二PWM信号的DC偏移成反比变化。 以这种方式，由产生的正弦信号中存在的DC偏移的变化引起的失真被限制（即减少或消除）。

公开(公告)号：US20140119735A1

公开(公告)日：2014-05-01

申请号：US14063630

申请日：2013-10-25

申请人： Corning MobileAccess Ltd.

发明人： William Patrick Cune ,  Jason Elliott Greene ,  Mohamed Lamin Toure'

IPC分类号： H04W16/26

CPC分类号： H04B10/25754 ,  H04W16/26 ,  H04W88/085

摘要： Wireless infrastructures have hardware and cable components capable of mobile, rapid deployment and recovery. The wireless infrastructures can be transported to a deployment site and remote units deployed to individual coverage areas. A communications path is established between head end equipment and the remote units to provide wireless communications to the coverage areas. When the deployment has ended, the infrastructure can be recovered and transported from the deployment site for use at another deployment.

摘要翻译： 无线基础设施具有能够移动，快速部署和恢复的硬件和电缆组件。 无线基础设施可以传输到部署站点，部署到各个覆盖区域的远程单元。 在头端设备和远程单元之间建立通信路径，以向覆盖区域提供无线通信。 部署结束后，可以从部署站点恢复和运输基础设施，以便在另一部署中使用。

公开(公告)号：US08325759B2

公开(公告)日：2012-12-04

申请号：US12129278

申请日：2008-05-29

申请人： Ami Hazani ,  Shlomo Butbul ,  Yehuda Binder

发明人： Ami Hazani ,  Shlomo Butbul ,  Yehuda Binder

IPC分类号： H04J3/16 ,  H04L12/28 ,  H04B1/38 ,  H03D7/16 ,  G05B11/01 ,  H01R29/00 ,  H01R9/05

CPC分类号： H04L5/14 ,  H04L5/06 ,  H04L27/2601

摘要： A device, network and method wherein a standard wireless modem is coupled to wiring for carrying a wireless baseband signal that may be OFDM based, and may be directly generated by the wireless IF modem, or extracted from the modem RF signal. The wiring may be a building utility wiring, such as telephone, AC power or CATV wiring. The baseband signal is carried simultaneously with the utility service signal over the utility wiring using Frequency Division Multiplexing. The device may be enclosed with a data unit, a standalone dedicated enclosure, within an outlet or as a plug-in outlet adapter. Data units may couple the device by a wiring port such as standard data connector, or via wireless connection. The device may be locally powered or via a power signal carried over the wiring. This abstract is not intended to limit or construe the scope of the claims.

摘要翻译： 一种设备，网络和方法，其中标准无线调制解调器耦合到用于承载可以是基于OFDM的无线基带信号的布线，并且可以由无线IF调制解调器直接生成或从调制解调器RF信号提取。 接线可能是建筑物公用事业接线，如电话，交流电源或有线电视线。 基带信号通过使用频分复用的公用设施线路与公用设施信号同时传送。 该设备可以用数据单元，独立的专用外壳，插座或插入式插座适配器封闭。 数据单元可以通过诸如标准数据连接器的接线端口或通过无线连接来耦合设备。 该设备可以是局部供电的，或者可以通过布线承载的功率信号。 本摘要并不旨在限制或解释权利要求的范围。

公开(公告)号：US08111959B2

公开(公告)日：2012-02-07

申请号：US12511199

申请日：2009-07-29

申请人： Carmi Shapiro

发明人： Carmi Shapiro

IPC分类号： G02B6/42 ,  H05K13/00

CPC分类号： G02B6/4225 ,  G02B6/4227 ,  Y10T29/49002

摘要： A method for making a multimode fiber optic subassembly includes alignment of an optical detector with a fiber termination of an optical fiber. The output of the optical detector (e.g. photocurrent) can be measured from light being transmitted through the optical fiber and detected by the optical detector. The end of the optical fiber and/or the optical detector can be positioned and angularly oriented in order to obtain relative maximum or peak output of the optical detector for a given position and orientation. The output of the optical detector can be monitored while mechanically manipulating, e.g. bending, flexing, shaking and/or twisting, the optical fiber, in order to verify that the positional relationship between the end of the optical fiber and the optical detector corresponds to a position and/or orientation that provides stable output from the optical detector. If the optical detector output is not stable, the end of the multimode optical fiber and the optical detector can be moved, changing the position and/or the orientation of one or both, until the output of the optical detector is stable during manipulation. If the optical detector output is stable, the end of the multimode optical fiber is fixed to the optical detector. The resulting subassembly, a fiber optic pigtail, can be made by cutting the optical fiber a short distance from the optical detector.

摘要翻译： 一种用于制造多模光纤子组件的方法，包括光学检测器与光纤的光纤终端的对准。 光检测器的输出（例如光电流）可以通过光纤传输并由光学检测器进行检测。 可以将光纤和/或光学检测器的端部定位和成角度地定向，以便为给定的位置和取向获得光学检测器的相对最大或峰值输出。 光学检测器的输出可以在机械操纵的情况下进行监测。 弯曲，弯曲，振动和/或扭转光纤，以便验证光纤端部和光学检测器之间的位置关系对应于提供来自光学检测器的稳定输出的位置和/或取向。 如果光学检测器输出不稳定，则可以移动多模光纤和光学检测器的端部，改变一个或两个的位置和/或取向，直到光学检测器的输出在操作期间稳定。 如果光检测器输出稳定，则多模光纤的端部固定在光检测器上。 所得的子组件，光纤引线可以通过将光纤与光学检测器相距短的距离切割而制成。

公开(公告)号：US20150031316A1

公开(公告)日：2015-01-29

申请号：US13948536

申请日：2013-07-23

申请人： Corning MobileAccess Ltd

发明人： Igor Berlin ,  Liav Moshe Daniel ,  Yoni Henia ,  Rami Reuven ,  Motti Yakobi

IPC分类号： H04W72/04

CPC分类号： H04W16/26 ,  H04B10/25753 ,  H04W24/02 ,  H04W24/08 ,  H04W72/0453 ,  H04W84/12 ,  H04W88/085

摘要： Monitoring non-supported wireless spectrum within a coverage area of a distributed antenna system (DAS) in which a listening module connected to a remote unit of the DAS monitors non-supported wireless frequencies (i.e., frequencies that are outside the frequency ranges supported by the downlink and uplink signals of the DAS), via one or more antennas. The listening module also transmits the wireless frequencies to a monitoring module connected to head end equipment (HEE) of the DAS. In that manner, a monitoring module can use an existing DAS infrastructure to monitor non-supported portions of the wireless spectrum at remote locations. In addition to avoiding the need to run a parallel DAS infrastructure, the disclosed arrangements are also useful in shared spectrum environments and other environments where efficient spectrum utilization is desired.

摘要翻译： 在分布式天线系统（DAS）的覆盖范围内监视不支持的无线频谱，其中连接到DAS的远程单元的监听模块监视不受支持的无线频率（即，频率范围在 DAS的下行链路和上行链路信号）经由一个或多个天线。 监听模块还将无线频率发送到连接到DAS的头端设备（HEE）的监控模块。 以这种方式，监控模块可以使用现有的DAS基础设施来监视远程位置的无线频谱的不支持部分。 除了避免需要运行并行DAS基础设施之外，所公开的布置在共享频谱环境和其他需要有效频谱利用的环境中也是有用的。