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公开(公告)号：US20100054227A1
公开(公告)日：2010-03-04
申请号：US12548899
申请日：2009-08-27
IPC分类号： H04J1/00
CPC分类号： H04W88/085
摘要： The present invention relates to radio frequency (RF) distribution systems for mobile communications. In particular, the present invention relates to a radio frequency network facilitating radio communication where the usual free space propagation of electromagnetic waves is hampered, undesired or impossible, for example in tunnels, mines, and buildings and in large complexes like exhibition grounds, shopping malls, and airports. The radio frequency network (1) comprises a distributed antenna system (2) having radiating elements, a wired distribution system (3) feeding the distributed antenna system (2), at least one antenna amplifier (5) between one end of the wired distribution system (3) and the distributed antenna system (2), at least one line amplifier (4) at the other end of the wired distribution system (3), and automatic self-leveling units included in the antenna and line amplifiers (4, 5).
摘要翻译： 本发明涉及用于移动通信的射频（RF）分配系统。 特别地，本发明涉及促进无线电通信的无线电频率网络，其中电磁波的通常自由空间传播受阻，不期望或不可能，例如在隧道，矿山和建筑物以及大型复合体，如展览场地，商场 和机场。 射频网络（1）包括具有辐射元件的分布式天线系统（2），馈送分布式天线系统（2）的有线分配系统（3），有线分布的一端之间的至少一个天线放大器（5） 系统（3）和分布式天线系统（2），在有线分配系统（3）的另一端的至少一个线路放大器（4）和包括在天线和线路放大器（4）中的自动调平单元， 5）。
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公开(公告)号：US08428033B2
公开(公告)日：2013-04-23
申请号：US12548899
申请日：2009-08-27
IPC分类号： H04W4/00
CPC分类号： H04W88/085
摘要： The present invention relates to radio frequency (RF) distribution systems for mobile communications. In particular, the present invention relates to a radio frequency network facilitating radio communication where the usual free space propagation of electromagnetic waves is hampered, undesired or impossible, for example in tunnels, mines, and buildings and in large complexes like exhibition grounds, shopping malls, and airports. The radio frequency network comprises a distributed antenna system having radiating elements, a wired distribution system feeding the distributed antenna system, at least one antenna amplifier between one end of the wired distribution system and the distributed antenna system, at least one line amplifier at the other end of the wired distribution system, and automatic self-leveling units included in the antenna and line amplifiers.
摘要翻译： 本发明涉及用于移动通信的射频（RF）分配系统。 特别地，本发明涉及促进无线电通信的射频网络，其中电磁波的通常自由空间传播受阻，不期望或不可能，例如在隧道，矿井和建筑物以及大型复合体，如展览场地，商场 和机场。 射频网络包括具有辐射元件的分布式天线系统，馈送分布式天线系统的有线分配系统，有线分配系统的一端与分布式天线系统之间的至少一个天线放大器，另一端的至少一个线路放大器 有线分配系统的末端，以及包括在天线和线路放大器中的自动自平衡单元。
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公开(公告)号：US08032148B2
公开(公告)日：2011-10-04
申请号：US11942442
申请日：2007-11-19
IPC分类号： H04W72/00
CPC分类号： H04W16/06 , H04W28/16 , H04W88/085
摘要： The invention relates to a method for wireless cellular indoor communications, the method comprising at least one base station connected to a cell management unit through a first digital connection interface, the cell management unit connected to at least one RF hub through a second digital connection interface, and the at least one RF hub connected to at least one remote radio head through a third digital connection interface, the at least one remote radio head providing service in a certain cell area inside a confined environment, and the cell management unit comprising means for providing efficient load balancing at and between base stations through adaptive cell reconfiguration; means for mapping carriers, time, frequency or time-frequency allocations to individual radio heads; means for alignment of individual delays accumulated on the digital connections between the cell management unit and each of the radio heads; means for synchronization of the signals between the cell management unit and the individual remote radio heads; and means for failure detection of the individual digital links between the cell management unit and the remote radio heads.
摘要翻译： 本发明涉及一种无线蜂窝室内通信方法，该方法包括通过第一数字连接接口连接到小区管理单元的至少一个基站，小区管理单元通过第二数字连接接口连接至至少一个RF集线器 ，并且所述至少一个RF集线器通过第三数字连接接口连接到至少一个远程无线电头，所述至少一个远程无线电头提供在受限环境内的某个小区区域中的服务，并且所述小区管理单元包括用于 通过自适应单元重新配置在基站之间和之间提供有效的负载平衡; 用于将载波，时间，频率或时频分配映射到各个无线电头的装置; 用于对准在小区管理单元和每个无线电头之间的数字连接上累积的各个延迟的装置; 用于在小区管理单元和各个远程无线电头之间的信号同步的装置; 以及用于单元管理单元和远程无线电头之间的各个数字链路的故障检测的装置。
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公开(公告)号：US20080056725A1
公开(公告)日：2008-03-06
申请号：US11751365
申请日：2007-05-21
IPC分类号： H04B10/12
CPC分类号： H04B10/2575 , H04B10/296
摘要： The invention relates to an optical transmission system comprising transmitter and receiver devices and comprising automatic optical signal level configuration means which provide the same fixed output signal level for a received signal level range, and the system comprising at least one automatic self-level unit in the transmitter device and at least one automatic self-level unit in the receiver device.
摘要翻译： 本发明涉及一种光传输系统，包括发射机和接收机设备，并且包括自动光信号电平配置装置，其为接收信号电平范围提供相同的固定输出信号电平，并且该系统包括至少一个自动自级别单元 发射机设备和接收机设备中的至少一个自动自级别单元。
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公开(公告)号：US07945170B2
公开(公告)日：2011-05-17
申请号：US11751365
申请日：2007-05-21
IPC分类号： H04B10/18
CPC分类号： H04B10/2575 , H04B10/296
摘要： The invention relates to an optical transmission system comprising transmitter and receiver devices and comprising automatic optical signal level configuration means which provide the same fixed output signal level for a received signal level range, and the system comprising at least one automatic self-level unit in the transmitter device and at least one automatic self-level unit in the receiver device.
摘要翻译： 本发明涉及一种光传输系统，包括发射机和接收机设备，并且包括自动光信号电平配置装置，其为接收信号电平范围提供相同的固定输出信号电平，并且该系统包括至少一个自动自级别单元 发射机设备和接收机设备中的至少一个自动自级别单元。
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