Distributed Antenna System for MIMO Technologies
    2.
    发明申请
    Distributed Antenna System for MIMO Technologies 有权
    MIMO技术的分布式天线系统

    公开(公告)号:US20080232305A1

    公开(公告)日:2008-09-25

    申请号:US11958062

    申请日:2007-12-17

    IPC分类号: H04Q7/00

    摘要: The invention is directed to a method and system for supporting MIMO 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: 本发明涉及用于支持MIMO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”。

    DISTRIBUTED ANTENNA SYSTEM FOR MIMO TECHNOLOGIES
    3.
    发明申请
    DISTRIBUTED ANTENNA SYSTEM FOR MIMO TECHNOLOGIES 有权
    MIMO技术的分布式天线系统

    公开(公告)号:US20140064399A1

    公开(公告)日:2014-03-06

    申请号:US14078949

    申请日:2013-11-13

    IPC分类号: H04B7/04

    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”。

    DISTRIBUTED ANTENNA SYSTEM FOR MIMO TECHNOLOGIES
    4.
    发明申请
    DISTRIBUTED ANTENNA SYSTEM FOR MIMO TECHNOLOGIES 有权
    MIMO技术的分布式天线系统

    公开(公告)号:US20120321314A1

    公开(公告)日:2012-12-20

    申请号:US13598078

    申请日:2012-08-29

    IPC分类号: H04W72/04 H04B7/216 H04J14/00

    摘要: The invention is directed to a method and system for supporting MIMO 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: 本发明涉及用于支持MIMO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的另一端,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。

    Distributed antenna system for MIMO technologies
    5.
    发明授权
    Distributed antenna system for MIMO technologies 有权
    MIMO技术的分布式天线系统

    公开(公告)号:US08873585B2

    公开(公告)日:2014-10-28

    申请号:US11958062

    申请日:2007-12-17

    摘要: The invention is directed to a method and system for supporting MIMO 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: 本发明涉及用于支持MIMO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”。

    INDOOR LOCATION DETERMINATION
    6.
    发明申请
    INDOOR LOCATION DETERMINATION 审中-公开
    室内位置确定

    公开(公告)号:US20080191941A1

    公开(公告)日:2008-08-14

    申请号:US12028842

    申请日:2008-02-11

    IPC分类号: G01S3/00

    CPC分类号: G01S5/04 G01S3/023 G01S5/0252

    摘要: 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.

    摘要翻译: 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。

    Method and system for equalizing cable losses in a distributed antenna system
    7.
    发明授权
    Method and system for equalizing cable losses in a distributed antenna system 有权
    用于均衡分布式天线系统中电缆损耗的方法和系统

    公开(公告)号:US08121646B2

    公开(公告)日:2012-02-21

    申请号:US12016459

    申请日:2008-01-18

    IPC分类号: H04M1/00

    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。

    Method and system for real time control of an active antenna over a distributed antenna system
    8.
    发明授权
    Method and system for real time control of an active antenna over a distributed antenna system 有权
    通过分布式天线系统实时控制有源天线的方法和系统

    公开(公告)号:US09549301B2

    公开(公告)日:2017-01-17

    申请号:US13664038

    申请日:2012-10-30

    摘要: A method and system suitable for supporting various wireless services on a Distributed Antenna System (DAS). The DAS can provide wireless services including voice and data services using the same equipment. The DAS can include one or more active antenna units controlled by an access point, and includes control channels for transferring control and status information between the access point and the antenna. The control channels can be transferred over a separate cable, or transferred using one or more intermediate frequency signals transferred over existing cables. The control channels can be used to configure and control and receive status from the managed components of the DAS including active antennas, control the amplifiers used to process TDD signals, and control the switching of diversity antenna systems.

    摘要翻译: 一种适用于支持分布式天线系统(DAS)上的各种无线业务的方法和系统。 DAS可以使用相同的设备提供无线服务,包括语音和数据服务。 DAS可以包括由接入点控制的一个或多个有源天线单元,并且包括用于在接入点和天线之间传送控制和状态信息的控制信道。 控制通道可以通过单独的电缆传输,或使用通过现有电缆传输的一个或多个中频信号传输。 控制通道可用于配置和控制DAS管理组件的状态,包括有源天线,控制用于处理TDD信号的放大器,以及控制分集天线系统的切换。

    METHOD AND SYSTEM FOR REAL TIME CONTROL OF AN ACTIVE ANTENNA OVER A DISTRIBUTED ANTENNA SYSTEM
    9.
    发明申请
    METHOD AND SYSTEM FOR REAL TIME CONTROL OF AN ACTIVE ANTENNA OVER A DISTRIBUTED ANTENNA SYSTEM 有权
    用于实时控制分布式天线系统中的活动天线的方法和系统

    公开(公告)号:US20120236790A1

    公开(公告)日:2012-09-20

    申请号:US13439946

    申请日:2012-04-05

    IPC分类号: H04W88/08

    摘要: A method and system suitable for supporting wireless medical telemetry services (WMTS) on a Distributed Antenna System (DAS). A DAS can provide wireless services including voice and data services using the same equipment. WMTS systems can include one or more active antenna units controlled by the MTS access point. The DAS includes control channels for transferring the MTS control and status information between the MTS access point and the antenna. The control channels can be transferred over a separate cable, or transferred using one or more intermediate frequency signals transferred over existing cables DAS between the MTS access point and the antenna. The control channels can be used to configure and control and receive status from the managed components of the DAS including active antennas, control the amplifiers used to process TDD signals, and control the switching of the diversity antenna systems.

    摘要翻译: 适用于分布式天线系统(DAS)上支持无线医疗遥测业务(WMTS)的方法和系统。 DAS可以使用相同的设备提供无线服务,包括语音和数据服务。 WMTS系统可以包括由MTS接入点控制的一个或多个有源天线单元。 DAS包括用于在MTS接入点和天线之间传送MTS控制和状态信息的控制信道。 控制通道可以通过单独的电缆传输,或者使用通过现有电缆DAS在MTS接入点和天线之间传输的一个或多个中频信号进行传输。 控制通道可用于配置和控制和接收来自包括有源天线在内的DAS的管理组件的状态,控制用于处理TDD信号的放大器以及控制分集天线系统的切换。

    Method and System for Equalizing Cable Losses in a Distributed Antenna System
    10.
    发明申请
    Method and System for Equalizing Cable Losses in a Distributed Antenna System 有权
    分布式天线系统中电缆损耗均衡的方法与系统

    公开(公告)号:US20080174502A1

    公开(公告)日:2008-07-24

    申请号:US12016459

    申请日:2008-01-18

    IPC分类号: H01Q21/00 G01R29/08

    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。