ULTRASOUND-BASED LOCALIZATION OF CLIENT DEVICES WITH INERTIAL NAVIGATION SUPPLEMENT IN DISTRIBUTED COMMUNICATION SYSTEMS AND RELATED DEVICES AND METHODS
    1.
    发明申请
    ULTRASOUND-BASED LOCALIZATION OF CLIENT DEVICES WITH INERTIAL NAVIGATION SUPPLEMENT IN DISTRIBUTED COMMUNICATION SYSTEMS AND RELATED DEVICES AND METHODS 有权
    在分布式通信系统中具有实时导航补充的客户端设备的基于超声波的本地化及相关设备和方法

    公开(公告)号:US20150268327A1

    公开(公告)日:2015-09-24

    申请号:US14533383

    申请日:2014-11-05

    IPC分类号: G01S5/26 G01S1/76 G01S5/02

    摘要: Spatially located ultrasound beacons are provided in known locations within a distributed communication system. The ultrasound beacons are configured to emit ultrasound pulses that can be received by client devices in ultrasound communication range of the beacons. The client devices are configured to analyze the received ultrasound pulses from the beacons to determine their time-difference of arrival and as a result, their location(s) within the distributed communication system. The client devices comprise inertial navigation systems (INS) that calculate client device location as the client device moves, and when received ultrasound signals are below a predefined threshold.

    摘要翻译: 在分布式通信系统中的已知位置提供空间位置的超声信标。 超声波信号被配置为发射可以在信标的超声波通信范围内由客户端设备接收的超声波脉冲。 客户端设备被配置为分析来自信标的接收到的超声波脉冲以确定其到达时间差,并且因此它们在分布式通信系统内的位置。 客户端设备包括惯性导航系统(INS),其在客户端设备移动时计算客户端设备位置,并且当接收到的超声信号低于预定阈值时。

    Multiple data services over a distributed antenna system
    3.
    发明授权
    Multiple data services over a distributed antenna system 有权
    通过分布式天线系统进行多种数据业务

    公开(公告)号:US09246557B2

    公开(公告)日:2016-01-26

    申请号:US13440173

    申请日:2012-04-05

    IPC分类号: H04M1/00 H04B7/02

    摘要: A system for supporting multiple time division duplexed (TDD) based wireless services or frequency division duplexed (FDD) wireless services on a Distributed Antenna System (DAS). TDD based services use a common clock signal to synchronize the components of the DAS for transmission and reception of TDD signals. The DAS includes a GPS receiver which extracts a timing signal from a GPS signal and distribute the timing signal to 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. The DAS distributes a reference clock signal to the DAS components to maintain zero frequency shift while manipulating with the carrier frequencies of the various wireless services carried by the DAS.

    摘要翻译: 一种用于在分布式天线系统(DAS)上支持基于时分双工(TDD)的无线业务或频分双工(FDD)无线业务的系统。 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。 DAS包括GPS接收机,其从GPS信号中提取定时信号,并将定时信号分配给DAS的组件,以实现用于发送和接收TDD信号的组件的同步。 GPS接收机可以是连接基于TDD的服务与DAS的接口的一部分。 DAS将参考时钟信号分配给DAS组件以保持零频移,同时使用DAS承载的各种无线服务的载波频率进行操作。

    COMMUNICATION SYSTEM USING LOW BANDWIDTH WIRES
    5.
    发明申请
    COMMUNICATION SYSTEM USING LOW BANDWIDTH WIRES 有权
    使用低带宽线的通信系统

    公开(公告)号:US20100309931A1

    公开(公告)日:2010-12-09

    申请号:US12739143

    申请日:2008-10-22

    IPC分类号: H04J1/00

    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。

    MIMO-ADAPTED DISTRIBUTED ANTENNA SYSTEM
    6.
    发明申请
    MIMO-ADAPTED DISTRIBUTED ANTENNA SYSTEM 有权
    MIMO-ADAPTED分布式天线系统

    公开(公告)号:US20090154621A1

    公开(公告)日:2009-06-18

    申请号:US12359321

    申请日:2009-01-25

    IPC分类号: H04B7/10

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

    摘要: Methods and systems for carrying different signals required for MIMO communication using a single coaxial cable between two endpoints of a distributed antenna system (DAS) network. Original MIMO signals having the same frequency are frequency-separated at a first endpoint of the network. The frequency-separated signals are propagated together over the single coaxial cable and then reconstructed to their original frequency at a second endpoint of the network.

    摘要翻译: 在分布式天线系统(DAS)网络的两个端点之间使用单个同轴电缆进行MIMO通信所需的不同信号的方法和系统。 具有相同频率的原始MIMO信号在网络的第一端点处被频率分离。 频率分离的信号通过单个同轴电缆一起传播,然后在网络的第二端点处被重建为其原始频率。

    Distributed Antenna System for MIMO Technologies
    7.
    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”。

    Multi Band Indoor Antenna
    8.
    发明申请
    Multi Band Indoor Antenna 有权
    多频带室内天线

    公开(公告)号:US20070109198A1

    公开(公告)日:2007-05-17

    申请号:US11558913

    申请日:2006-11-12

    IPC分类号: H01Q1/38

    摘要: A wide band indoor antenna includes a low band section with four modified spiral (MSE) elements, a high band section with a bent folded monopole (BFM) radiator mounted on a ground plane and a feeding plate for feeding the low band section and the high band section via a diplexer. The BFM radiator mounted on the ground plane can serve independently as a high frequency monopole antenna

    摘要翻译: 宽带室内天线包括具有四个改进的螺旋(MSE)元件的低频带部分,安装在接地平面上的弯曲折叠单极(BFM)辐射器的高频带部分和用于馈送低频带部分和高频部分的馈送板 带通部分。 安装在地平面上的BFM散热器可独立地作为高频单极天线使用

    Method and system for real time control of an active antenna over a distributed antenna system
    9.
    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。

    Communication system using cables carrying ethernet signals
    10.
    发明授权
    Communication system using cables carrying ethernet signals 有权
    使用承载以太网信号的电缆的通信系统

    公开(公告)号:US08897215B2

    公开(公告)日:2014-11-25

    申请号:US12674680

    申请日:2010-02-07

    IPC分类号: H04W4/00 H04L12/413

    CPC分类号: H04L12/413

    摘要: It is provided a method for transmitting a wireless signal on Ethernet wiring The wireless signal is received in a hub unit for delivery to a remote unit In the hub unit the wireless signal is down converted to a down-converted frequency band for propagation on the Ethernet wiring A reference signal associated with a local oscillator used for the down conversion is embedded on a synchronous Ethernet stream that may include Ethernet data received at hub unit The synchronous Ethernet stream and the down converted wireless signal are submitted through the Ethernet wiring to the remote unit. The synchronous Ethernet stream may include data for management of electronic circuits installed in the remote unit, as well as a synchronization signal used thereof A converted replica of the first signal may be included in digital form in frames of the synchronous Ethernet stream.

    摘要翻译: 提供了一种用于在以太网接线上发送无线信号的方法无线信号被接收在集线器单元中以传送到远程单元在集线器单元中,无线信号被下变频到下变频频带以在以太网上传播 接线与用于下变频的本地振荡器相关联的参考信号嵌入同步以太网流中,该同步以太网流可包括在集线器单元处接收的以太网数据。同步以太网流和下变频无线信号通过以太网接线提交到远程单元 。 同步以太网流可以包括用于管理安装在远程单元中的电子电路的数据,以及使用其的同步信号。第一信号的转换副本可以数字形式包含在同步以太网流的帧中。