METHOD AND SYSTEM FOR EQUALIZING CABLE LOSSES IN A DISTRIBUTED ANTENNA SYSTEM
    1.
    发明申请
    METHOD AND SYSTEM FOR EQUALIZING CABLE LOSSES IN A DISTRIBUTED ANTENNA SYSTEM 审中-公开
    在分布式天线系统中均衡电缆损耗的方法和系统

    公开(公告)号:WO2008088862A1

    公开(公告)日:2008-07-24

    申请号:PCT/US2008/000663

    申请日:2008-01-18

    Abstract: 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.

    Abstract translation: 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线连接到系统。 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,其将信号分离成连接到与特定频带或范围相关联的天线元件的频带或范围。 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,可以在频率复用器和适当的天线元件之间的连接中插入多频段放大块(MBAB)以放大(或衰减)所需的频带。

    MULTIPLE DATA SERVICES OVER A DISTRIBUTED ANTENNA SYSTEM

    公开(公告)号:WO2009138876A3

    公开(公告)日:2009-11-19

    申请号:PCT/IB2009/005861

    申请日:2009-05-13

    Abstract: A method and system for supporting multiple time division duplexed (TDD) based wireless services or frequency division duplexed (FDD) wireless services on a Distributed Antenna System (DAS) is disclosed. The DAS can include a GPS receiver which can extract a timing signal (such as a 1 pps signal) from a GPS signal and distribute the timing signal to any component of the DAS to enable synchronization of the components for transmitting and receiving TDD signals. The GPS receiver can be part of the interface that connects a TDD based service to the DAS or separate component of the DAS. The DAS can distribute a reference clock signal to all of the components of the DAS in order to maintain zero frequency shift while manipulating with the carrier frequencies of the various wireless services carried by the DAS.

    MULTIPLE DATA SERVICES OVER A DISTRIBUTED ANTENNA SYSTEM
    3.
    发明申请
    MULTIPLE DATA SERVICES OVER A DISTRIBUTED ANTENNA SYSTEM 审中-公开
    分布式天线系统中的多种数据服务

    公开(公告)号:WO2009138876A2

    公开(公告)日:2009-11-19

    申请号:PCT/IB2009005861

    申请日:2009-05-13

    CPC classification number: H04L5/14 H04B7/024 H04W28/0226 H04W88/085

    Abstract: The invention is directed to a method and system for supporting multiple time division duplexed (TDD) based wireless services or frequency division duplexed (FDD) wireless services on a Distributed Antenna System (DAS). A DAS can support a many wireless services, including voice and data services using the same physical equipment. TDD based services use a common clock signal to synchronize the components of the DAS for transmission and reception of TDD signals. In accordance with the invention, the DAS can include a GPS receiver which can extract a timing signal (such as a 1 pps signal) from a GPS signal and distribute the timing signal to any and all components of the DAS to enable synchronization of the components for transmitting and receiving TDD signals. The GPS receiver can be part of the interface that connects a TDD based service to the DAS or separate component of the DAS. In accordance with the invention, the DAS can distribute a reference clock signal to all of the components of the DAS in order to maintain zero frequency shift while manipulating with the carrier frequencies of the various wireless services carried by the DAS. In addition, and in accordance with the invention, two analog architectures for better integration between the services sources (BTS) and the DAS are disclosed.

    Abstract translation: 本发明涉及一种在分布式天线系统(DAS)上支持基于时分双工(TDD)的无线业务或频分双工(FDD)无线业务的方法和系统。 DAS可以支持许多无线服务,包括使用相同物理设备的语音和数据服务。 基于TDD的服务使用公共时钟信号来同步DAS的组件以发送和接收TDD信号。 根据本发明,DAS可以包括GPS接收机,其可以从GPS信号中提取定时信号(例如1pps信号),并且将定时信号分配给DAS的任何和所有组件以实现组件的同步 用于发送和接收TDD信号。 GPS接收机可以是将基于TDD的服务与DAS或DAS的单独组件连接的接口的一部分。 根据本发明,DAS可以将参考时钟信号分配给DAS的所有组件,以便在使用DAS承载的各种无线服务的载波频率的同时维持零频移。 此外,根据本发明,公开了用于在服务源(BTS)和DAS之间更好集成的两个模拟架构。

    INDOOR LOCATION DETERMINATION
    4.
    发明申请

    公开(公告)号:WO2008099390A3

    公开(公告)日:2008-08-21

    申请号:PCT/IL2008/000183

    申请日:2008-02-12

    Abstract: A tentative location of a transmitter in an indoor environment is determined by triangulation, using at least two direction finders. The tentative location is made more accurate by performing at least one added action selected from the following: checking the likelihood that the tentative location is an accurate location by comparing measured transmitter signal strengths with calculated signal strengths, using a known indoor environment structure, using a record of the transmitter movement through the indoor environment for determining whether the transmitter is located in an obscured area of the indoor environment or performing an alignment procedure on the antennas to improve the triangulation.

    METHOD AND SYSTEM FOR INTEGRATING AN RF MODULE INTO A DIGITAL NETWORK ACCESS POINT
    6.
    发明申请
    METHOD AND SYSTEM FOR INTEGRATING AN RF MODULE INTO A DIGITAL NETWORK ACCESS POINT 审中-公开
    将RF模块集成到数字网络接入点的方法和系统

    公开(公告)号:WO2011066426A1

    公开(公告)日:2011-06-03

    申请号:PCT/US2010/058055

    申请日:2010-11-24

    CPC classification number: H04W88/085

    Abstract: The invention is directed to a method and system for supporting wireless RF services over a wired digital data network infrastructure. The system includes a control unit that can be connected to a base station supporting wireless RF services. The control unit converts the wireless RF signals to an intermediate frequency (IF) that does not interfere with the data network signals and combines the IF signals onto the cable run to a remote network device. The remote network device includes a multiplexer or a low pass filter and a high pass filter that separates the IF signals from the digital data signals on the downlink and combines the IF signals with digital data signals. The IF signals can be input to an RF module connected to the remote network device converting the IF signals back to the original RF signals for transmission by a transceiver to wireless devices.

    Abstract translation: 本发明涉及一种用于通过有线数字数据网络基础设施来支持无线RF服务的方法和系统。 该系统包括可连接到支持无线RF服务的基站的控制单元。 控制单元将无线RF信号转换成不干扰数据网络信号的中频(IF),并将IF信号组合到到远程网络设备的电缆上。 远程网络设备包括多路复用器或低通滤波器和高通滤波器,其将IF信号与下行链路上的数字数据信号分离,并将IF信号与数字数据信号组合。 IF信号可以输入到连接到远程网络设备的RF模块,将IF信号转换回原始的RF信号,以便通过收发信机发送到无线设备。

    METHOD AND SYSTEM FOR IMPROVING UPLINK PERFORMANCE
    7.
    发明申请
    METHOD AND SYSTEM FOR IMPROVING UPLINK PERFORMANCE 审中-公开
    改善上网性能的方法和系统

    公开(公告)号:WO2008103375A3

    公开(公告)日:2008-10-09

    申请号:PCT/US2008002226

    申请日:2008-02-19

    Abstract: The present invention is directed to distributed antenna systems and more particularly to methods and systems for uplink communications. In one embodiment, Aggregation Point Noise Blocking provides for blocking or filtering the noise contributed by one or more of the branches coupled to an. aggregation point that are not.carrying the signal from a particular terminal. Signal activity from a given terminal on a particular branch can be identified and that information can be used to selectively block or filter the signal noise contributed by the other branches to. an aggregation point. The selective blocking or filtering can also include an attenuation function to attenuate the signal and provide dynamic range smoothing. In another embodiment the signal can be regenerated to produce a signal that has a restored or very high SNR. An uplink regeneration block can be provided which demodulates the uplink signal to recover the transmitted information and then re-modulates the.transmitted information to regenerate a signal at a restored or very high SNR.

    Abstract translation: 本发明涉及分布式天线系统,更具体地涉及用于上行链路通信的方法和系统。 在一个实施例中,聚合点噪声阻塞提供阻塞或过滤由耦合到一个或多个分支的一个或多个分支贡献的噪声。 来自特定终端的信号的汇总点。 可以识别来自特定分支上的给定终端的信号活动,并且该信息可以用于选择性地阻挡或滤除由其他分支贡献的信号噪声。 一个聚合点。 选择性阻塞或滤波还可以包括衰减功能以衰减信号并提供动态范围平滑。 在另一个实施例中,信号可被再生以产生具有恢复或非常高SNR的信号。 可以提供上行链路再生块,其解调上行链路信号以恢复发送的信息,然后重新调制发送的信息,以恢复或非常高的SNR的信号。

    HYBRID PASSIVE ACTIVE BROADBAND ANTENNA FOR A DISTRIBUTED ANTENNA SYSTEM
    8.
    发明申请
    HYBRID PASSIVE ACTIVE BROADBAND ANTENNA FOR A DISTRIBUTED ANTENNA SYSTEM 审中-公开
    用于分布式天线系统的混合被动活跃宽带天线

    公开(公告)号:WO2008088859A3

    公开(公告)日:2008-09-04

    申请号:PCT/US2008000659

    申请日:2008-01-18

    Abstract: 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 for use in a DAS 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.

    Abstract translation: 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线连接到系统。 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可以包括在DAS中使用的混合无源 - 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率相关联的天线元件连接的频带或范围 乐队或范围。 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。

    INDOOR LOCATION DETERMINATION
    9.
    发明申请
    INDOOR LOCATION DETERMINATION 审中-公开
    室内位置确定

    公开(公告)号:WO2008099390A2

    公开(公告)日:2008-08-21

    申请号:PCT/IL2008000183

    申请日:2008-02-12

    CPC classification number: G01S5/04 G01S3/023 G01S5/0252

    Abstract: A tentative location of a transmitter in an indoor environment is determined by triangulation, using at least two direction finders. The tentative location is made more accurate by performing at least one added action selected from the following: checking the likelihood that the tentative location is an accurate location by comparing measured transmitter signal strengths with calculated signal strengths, using a known indoor environment structure, using a record of the transmitter movement through the indoor environment for determining whether the transmitter is located in an obscured area of the indoor environment or performing an alignment procedure on the antennas to improve the triangulation.

    Abstract translation: 发射机在室内环境中的暂时位置由三角测量决定,使用至少两个测向仪。 通过执行从以下选择的至少一个附加动作,使临时位置更准确:通过使用已知的室内环境结构,使用已知的室内环境结构将测量的发射机信号强度与计算出的信号强度进行比较来检查临时位置是准确位置的可能性 通过室内环境的发射机移动的记录,用于确定发射机是否位于室内环境的遮蔽区域中,或者对天线执行对准过程以改善三角测量。

    HYBRID PASSIVE ACTIVE BROADBAND ANTENNA FOR A DISTRIBUTED ANTENNA SYSTEM
    10.
    发明申请
    HYBRID PASSIVE ACTIVE BROADBAND ANTENNA FOR A DISTRIBUTED ANTENNA SYSTEM 审中-公开
    分布式天线系统的混合被动主动宽带天线

    公开(公告)号:WO2008088859A2

    公开(公告)日:2008-07-24

    申请号:PCT/US2008/000659

    申请日:2008-01-18

    Abstract: 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 for use in a DAS 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.

    Abstract translation: 本发明涉及一种用于均衡分布式天线系统(DAS)中的电缆运行中的信号损耗的方法和系统。 在DAS中,两根或更多天线通过长度可变的电缆连接到系统。 因此,给定电缆线路上的信号损耗也会变化很大,这会影响DAS的设计和部署,并减少天线间距。 另外,对于使用公共天线单元支持许多频带或范围的宽带DAS,信号损耗随频率而变化,进一步使得难以平衡电缆损耗。 根据本发明的一个实施例,该方法和系统提供测量和调整每个电缆线路的信号损失为预定值。 根据本发明的另一个实施例,DAS可以包括在DAS中使用的混合无源 - 有源天线单元,其包括频率复用器,该频率复用器将信号分离成频带或范围,该频带或范围连接到与特定频率相关联的天线元件 乐队或范围。 在需要放大(或衰减)单个频带的情况下,可以在频率复用器与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)所需频带。 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)所需的频带。 p>

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