CN101926107A - 混合无线/有线转发器及使用该转发器的混合光纤无线电通信系统 - Google Patents
混合无线/有线转发器及使用该转发器的混合光纤无线电通信系统 Download PDFInfo
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Abstract
本发明公开了光纤无线电(RoF)混合有线/无线转发器,其配置成在混合前端和一个或多个客户机设备之间提供无线和有线通信。混合转发器包括光电(O/E)和电光(E/O)转换能力并配置成对电“有线”信号和电“无线”信号进行频率复用/解复用。电无线信号经蜂窝覆盖区内的多输入/多输出天线系统无线传给客户机设备。电有线信号经插入转发器上的有线线路光缆端口的有线线路光缆传给客户机设备。混合RoF系统包括能够发送和接收有线和无线光信号的混合前端,及包括光连接到混合前端和至少一混合转发器的光缆。还公开了在客户机设备和转发器之间容易提供有线和无线连通性的下拉式转发器结构。
Description
发明背景
技术领域
本发明总体上涉及无线和有线通信系统,尤其涉及采用有线和/或无线技术的光纤无线电(RoF)通信系统。
背景技术
无线通信快速增长,对高速移动数据通信的需求也日益增加。作为例子,所谓的“无线保真度”或“WiFi”系统和无线局域网(WLAN)均部署在许多不同类型的区域(咖啡店、机场、图书馆等)。无线通信系统与称为“客户机”的无线设备通信,所述客户机必须位于无线范围或“小区覆盖区域”内以与接入点设备通信。
部署无线通信系统的一种方法包括使用“小区”,其是射频(RF)覆盖区域。小区可具有相对大的半径(如1000m)或可具有在从约几米到约20m的范围中的相对小的半径(“微微蜂窝小区”)。由于微微蜂窝小区覆盖小的区域,通常每个微微蜂窝小区只有几个用户(客户机)。当由传统基站产生的较大小区覆盖时,微微蜂窝小区使能在小的区域进行选择性无线覆盖,要不然这些小的区域将具有较差的信号强度。
构成RoF无线微微蜂窝系统的基本组成为前端控制器(“前端”)、一根或多根光缆及一个或多个转发器。光缆一端连接到前端控制器。转发器沿光缆的长度方向光连接到光缆。光缆具有在转发器和前端之间传送RoF光信号的下行链路和上行链路光纤。转发器将RoF光信号转换为电信号,反之亦然,以创建一个或多个相应的小区。转发器包括向相应小区内的客户机设备发送RF自由空间电磁(EM)信号及从其接收该种信号的一个或多个天线。组合多个转发器可创建覆盖称为“蜂窝覆盖区”的区域的小区阵列。密集的微微蜂窝小区阵列形成提供高的每用户数据吞吐量的微微蜂窝覆盖区。
在RoF无线蜂窝和微微蜂窝系统坚固的同时,能够向终端用户提供最新无线和有线服务是合乎需要的,例如,在目前的技术术语中,具有802.11a/b/g/n连同千兆有线线路以太网的无线RoF基础设施及具有IEEE 802.3/u./z的有线基础设施(其中IEEE 802.3为10Mbps,IEEE 802.3u为100Mbps和IEEE 802.3z为1Gbps)。实现此的传统方式是通过两个分开的无线和有线网络基础设施,但这成本高且部署和维护复杂。
需要使无线和有线服务均能提供给终端用户的方法,该方法没有部署两个分开的通信系统那样的复杂性和成本。
发明内容
本发明的一方面是用于将无线和有线信号从混合前端分发到至少一客户机设备的混合转发器。混合转发器包括适于将来自前端单元的无线和有线光信号转换为对应的有线和无线电信号的混合转换器,反之亦然。混合转发器还包括电连接到转换器并适于对有线和无线电信号进行复用和解复用的频率复用器/解复用器(M/D)。天线系统经信号导控元件电连接到频率M/D,信号导控元件配置成使天线系统能发射和接收来自至少一客户机设备的无线信号。有线线路光缆端口如标准以太网端口电连接到频率M/D并适于连接到有线线路光缆(如以太网光缆)以在其与至少一客户机设备之间传送有线电信号。本发明的进一步的实施例包括在其与至少一客户机设备之间传送光信号的有线线路光缆和光缆端口。因此,混合转发器使能在一个或多个客户机设备和混合前端之间既进行有线通信又进行无线通信。在实施例中,一个客户机设备经混合转发器进行无线通信,同时另一客户机设备经该混合转发器进行有线通信。在另一实施例中,同一客户机设备经混合转发器既有线通信又无线通信。
本发明的另一方面是提供自混合前端到至少一客户机设备的有线和无线连通性的方法。该方法包括部署至少一混合转发器,该混合转发器光连接到前端单元并适于将来自混合前端的光有线和无线信号转换为对应的电有线和无线信号。本发明方法还包括,在至少一混合转发器中,将电无线信号导控到多输入/多输出(MIMO)天线系统以与至少一客户机设备无线通信。本发明方法还包括经用于将转发器连接到至少一客户机设备的有线线路光缆将电有线信号导控到有线线路光缆端口及客户机设备。
本发明的另一方面为能够提供到至少一客户机设备的无线和有线连通性的混合RoF通信系统。该系统包括适于基于光缆发送和接收有线和无线光信号的混合前端。至少一混合转发器光连接到光缆并配置成将有线和无线光信号转换为对应的有线和无线电信号,反之亦然。混合转发器配置成经天线系统将无线电信号无线发送到至少一客户机设备及经用于将混合转发器连接到至少一客户机设备的有线线路光缆将有线信号有线发送到至少一客户机设备。在实施例中,本发明系统提供到一客户机设备的有线连接及到另一客户机设备的无线连接,两个客户机设备均位于本发明系统的小区内。
本发明的另外的特征和优点将在下面的详细描述中提出,且本领域技术人员从该描述可明显看出或通过按在此所述的(包括下面的详细描述、权利要求及附图)实施本发明而意识到。
应当理解,前面的概括描述和下面的详细描述均呈现本发明的实施方式,且意于提供用于理解本发明的实质和特征的概览或框架。包括附图以提供对本发明的进一步理解,且其构成本说明书的一部分。附图示出了本发明的多个实施例,连同在此进行的描述一起用于阐释本发明的原理和运行。
因此,为易于说明和图示,多个基本电子电路元件和信号调节部件如偏置T形器、RF滤波器、放大器、功率分配器等均未在图中示出。这些基本电子电路元件及部件应用于本发明的设备和系统对本领域技术人员显而易见。
附图说明
图1为根据本发明的混合RoF无线/有线通信系统(“混合RoF系统”)的一般实施例的示意图,示出了经光缆而光连接到至少一混合转发器的混合前端,及示出了由混合转发器之一形成的小区(微微蜂窝小区)及微微蜂窝小区内的两个客户机设备。
图2为图1的混合RoF系统的混合前端的实施例的详细示意图。
图3和图4与图2一样,分别示出了多个下行链路和上行链路无线和有线信号。
图5为图1的系统的混合转发器的实施例的详细示意图,示出了发送到混合前端及从混合前端接收的多个光和电下行链路无线和有线信号,还示出了提供到客户机设备的有线通信的有线线路光缆。
图6为混合转发器与具有下行链路和上行链路光纤的光缆组合的示意图,其中示出了转发器中的以太网型有线线路光缆端口。
图7为图5的示意图,但示出了多个上行链路光和电无线和有线信号。
图8为本发明的混合RoF系统的转发器端的示意图,示出了两个转发器和三个客户机设备,包括与一个或两个混合转发器无线通信的多输入/多输出(MIMO)客户机设备及与相应混合转发器有线通信的两个其它客户机设备。
图9为MIMO混合转发器的实施例的详细示意图。
图10为本发明的混合RoF系统的转发器端的示意图,其包括图9的MIMO混合转发器,示出了该混合转发器提供与客户机设备之一的MIMO无线通信及与另两个客户机设备的有线通信。
图11为本发明的混合RoF系统的转发器端的示意图,示出了部分上行数据流混合转发器连接到远处的功率/数据扩展器单元的实施例。
图12A为本发明的混合RoF系统的转发器端的示意图,示出了下拉式结构的实施例,其中混合转发器从安装在天花板上方的光缆从天花板下拉到室内。
图12B与图12A类似,示出了一客户机设备通过混合转发器无线通信而另一客户机设备通过混合转发器有线通信的实施例。
图13为与图12类似的示意图,示出了下拉式结构的实施例,其中混合转发器保持在天花板上方,及其中有线线路光缆可插入转发器的有线线路光缆端口及还插入客户机设备以在前端和客户机设备之间建立有线和/或无线通信。
图14A与图13类似,但示出了两个客户机设备,并示出了有线线路光缆直接连接到转发器而不是连接到混合转发器中的有线线路光缆端口的实施例。
图14B与图14A类似,示出了第一有线线路光缆将转发器连接到壁装插口及第二有线线路光缆将客户机设备连接到壁装插口的实施例。
图15为混合转发器和有线线路光缆的特写图,示出了有线线路光缆在放大器/滤波器电子单元(“A/F电子电路”)直接连接到转发器。
具体实施方式
下面详细提及本发明目前优选的实施方式,其例子在附图中图示。只要可能,相同或类似附图标记在所有附图中均用于指相同或相似部分。
本发明致力于既提供无线又提供有线网络连通性的混合无线/有线RoF通信系统(在下文中称为“混合RoF系统”)。该系统设计成提供具有MIMO能力的无线连接如IEEE 802.11n,连同提供高数据速率有线连接如有线线路以太网或有线线路光缆。本发明的混合RoF系统的例子用多模光纤将无线和有线网络基础设施结合为单一混合RoF系统(如网络),多模光纤传送IEEE802.11a/b/g/n、超宽带(UWB)信号和基带千兆有线线路以太网信号(如IEEE802.3z@1Gbps)。
在下面的描述中,“无线”信号与提供无线通信相关联,及“有线”信号与提供基带有线通信相关联。“无线”和“有线”信号均可以是电或光信号,同时无线信号可另外为通常与“无线”(即非有线)通信相关联的类型的自由空间电磁信号。
同样,在下面的描述中,首字母缩写词LAN代表“局域网”,及首字母缩写词WLAN代表“无线局域网”。
通用基于光纤的无线系统
图1为根据本发明的混合RoF系统10的通用实施例的示意图。混合RoF系统10包括混合前端20、配置成处理无线和有线信号的至少一混合转发器单元(“转发器”)30、及将混合前端光连接到至少一混合转发器的光缆36。混合前端20经通信链路21连接到外部源22,如光通信网络或其它网络体系结构主干网、因特网等。
如图1中的特写图所示,在实施例中,光缆36包括一根或多根光纤,及在特定实施例中包括下行链路光纤36D和上行链路光纤36U。在实施例中,本发明采用多模光纤用于下行链路和上行链路光纤36D和36U。在更具体的实施例中,OM350μm多模光纤用于下行链路和上行链路光纤36D和36U。在另一实施例中,下行链路光纤36D和/或上行链路光纤36U可包括一根或多根单独光纤。在图1中,作为例子及为了易于图示,下行链路和上行链路光纤36D和36U被示为单独光纤。
在实施例中,36D和/或36U中的光纤之一用于无线信号,而36D和/或36U中的另一光纤用于有线信号。同样,在另一实施例中,光纤之一用于一种类型的信号,而另一光纤传送两种信号类型。为了图示和易于描述,假定36D中的下行链路光纤将下行链路光无线和有线信号从混合前端20传到混合转发器30,而36U中的上行链路光纤将上行链路光无线和有线信号从混合转发器传到混合前端。
混合RoF系统10在每一混合转发器30处形成实质上以对应的混合转发器为中心的小区40。在实施例中,小区40可相当大(如1000m半径)或可以是从跨约1m到跨约20m范围的微微蜂窝小区。与至少一混合转发器相关联的一个或多个小区40形成蜂窝覆盖区44。在下面的其余描述中,为了说明,小区40假定为“微微蜂窝小区”,及覆盖区44假定为“微微蜂窝覆盖区”。
混合转发器30还适于经有线线路光缆50如以太网基于导线的线缆或光缆提供有线通信。混合前端20适于执行或促进多种RoF应用中的任一应用,例如射频识别(RFID)、无线局域网(WLAN)通信(以太网信号)和/或移动电话服务。
继续参考图1,在微微蜂窝小区40内示出了两个客户机设备45(45A和45B),作为例子示为计算机的形式。客户机设备45A的实施例包括适于接收和/或发送自由空间电磁信号的两个天线46A和46B(如多天线无线卡),而客户机设备45B经有线线路光缆50有线连接到转发器。因此,客户机设备45A适合经混合转发器30与混合前端20进行多输入/多输出(MIMO)通信。
在实施例中,混合RoF系统10还包括产生电功率信号71的电源70。在实施例中,电源70位于前端单元20处并经电功率线72电连接到前端单元20,及向其中的功耗元件供电。在实施例中,电功率线74通过混合前端20延伸到至少一混合转发器30,不仅对混合前端中的功耗元件供电,而且对至少一混合转发器中的功耗元件如O/E和E/O转换器供电,如下所述。在实施例中,电功率线74包括两根导线74A和74B,其传送单一电压并电连接到转发器30处的DC功率转换器180(DC功率转换器180在下面结合图5详细描述)。
在实施例中,电源70提供在一个或多个混合转发器本地并经电功率线72而不是经光缆36向一个或多个本地混合转发器直接提供电功率。在实施例中,电功率线74(或其支路)包括在有线线路光缆50中,从而使混合RoF系统10能经混合转发器30实现以太网供电。
在实施例中,混合RoF系统10采用已知的远程通信波长,如850nm、1300nm或1550nm。在另一实施例中,混合RoF系统10采用其它不太常用但适当的波长如980nm。
混合前端
图2为图1的混合前端20的实施例的详细示意图。混合前端20包括具有第一和第二输入/输出(I/O)侧102和104的交换机100。I/O侧102在I/O端口103连接到通信链路21。在实施例中,通信链路21为或包括高速(如10Gbps)以太网链路。I/O侧104包括多个I/O端口106。在实施例中,I/O端口106为较低速度的端口(如10个1Gbps端口以处理来自通信链路21承载的不同导线的10Gbps以太网信号)。为说明目的,示出了两个I/O端口106A和106B。
I/O端口106A电连接到无线信号转换器120,而I/O端口106B电连接到有线信号转换器130。在实施例中,无线信号转换器120包括放大器/滤波器电子电路单元(“A/F电子电路”)122,其对无线信号进行放大和滤波,如下所述。混合前端单元20还包括频率复用器/解复用器(M/D)138,在实施例中其包括合频器140和分频器150。频率M/D138电连接到A/F电子电路122和转换器130。
混合前端20还包括电连接到频率M/D138的合频器140的电光(E/O)转换器160。E/O转换器160适于从合频器140接收电信号并将其转换为相应的光信号,如下详细所述。在实施例中,E/O转换器160包括适于对RoF应用传送足够的动态范围的激光器,及可选地包括电连接到激光器的激光器驱动器/放大器(未示出)。用于E/O转换器160的适当激光器的例子包括激光二极管、分布式反馈(DFB)激光器、Fabry-Perot(FP)激光器、及垂直腔面发射激光器(VCSEL),如指定用于10Gbps数据传输的850nm商用VCSEL。E/O转换器160光连接到光缆36及其中包含的下行链路光纤36D。
混合前端20还包括电连接到频率M/D138的分频器150、光缆36及其中包含的上行链路光纤36U的光电(O/E)转换器162。O/E转换器162适于接收光信号并将其转换为相应的电信号。在实施例中,O/E转换器162为或包括光检测器或电连接到线性放大器的光检测器。E/O转换器160和O/E转换器162构成转换器对单元(“转换器单元”)166,其将电信号转换为光信号,反之亦然。
现在参考图3,在混合前端20的运行实施例中,通信链路21携载包括下行链路和上行链路数字信号SD21和SU21的信号S21。例如,下行链路数字信号SD21源自外部源22。数字信号S21可包括多种不同的信号类型,如数据、话音、视频等。某些类型的这些信号,如高带宽视频信号,具有相对高的数据速率,因而最好经有线连接传给终端用户。另一方面,这些信号中的某些信号具有相对低的数据速率,如低带宽话音信号,因而可经无线信号传给终端用户。
下行链路信号SD21进入混合前端20并遭遇交换机100。交换机100适于将最适合无线传输的某些信号SD21导控到无线信号转换器120及将适合有线传输的其它信号SD21导控到有线信号转换器130。无线信号转换器120接收导向其的信号SD21并将它们转换为下行链路“无线信号”S1D。具体地,无线信号转换器120将信号SD21相位调制和/或振幅调制到RF载波信号如2.4GHz或5GHz RF载波信号上,从而导致下行链路无线信号S1D。无线信号转换器120还使用A/F电子电路122对无线信号S1D进行放大和滤波。在实施例中,无线信号转换器120配置成适应无线通信的传输协议(如以太网无线协议802.3到无线LAN协议802.11)。
其间,有线信号转换器130接收导向其的信号SD21并处理(如滤波)这些信号以使它们相容于基于混合系统的传输。例如,下行链路信号SD21为双绞线传送的以太网数据信号,有线信号转换器130协调信号SD21以使它们与对应的单端信号版本兼容,同时拒绝任何可能存在的以太网供电DC信号。这导致下行链路有线信号S2D。
通常,无线信号S1D具有比有线信号S2D高的频率,使得这两个信号类型可进行频率复用和解复用。因此,无线信号S1D和有线信号S2D传到频率M/D138及其中的合频器140,其将不同频率的信号S1D和S2D组合(复用)到连接到转换器对单元166中的E/O转换器160的公共电线。之后,E/O转换器160将下行链路电无线信号S1D转换为对应的光信号S1D’及将下行链路电有线信号S2D转换为对应的光信号S2D’。在实施例中,E/O转换器160配置成将无线和有线光信号调制到单一光载体上。无线和有线光信号S1D’和S2D’由下行链路光纤36D携载并传到混合转发器30。
现在参考图4,混合前端20还从转发器30接收上行链路光无线信号S1U’和上行链路光有线信号S2U’,如下所述。这些信号自混合转发器30在上行链路光纤36U上传送并由转换器单元166中的O/E转换器162接收,其将这些信号转换为对应的上行链路电无线和有线信号S1U和S2U。频率M/D138中的分频器150分拆(即解复用)这些信号以沿两个不同的电通路而行,其中无线信号S1U传到无线信号转换器120,而有线信号S2U传到有线信号转换器130。之后,无线信号转换器120对其接收的无线信号S1U起作用并从RF载波提取信号SU21。同样,有线信号转换器130处理其接收的有线信号S2U以形成信号SU21。例如,有线信号S2U由有线信号转换器130转换为双绞线接收以太网数据信号。
之后,来自转换器120和130的信号SU21传给交换机100,其将这些信号引导到通信链路21上。在实施例中,不是所有信号SU21均传给通信链路21。例如,中继器蜂窝信号不需要经过交换机100,而是传到分开的处理单元(未示出)。
混合转发器
图5为根据本发明的混合转发器30的实施例的示意图。图6为混合转发器30与光缆36组合的示意图。
本发明的混合转发器30不同于与无线通信系统相关联的典型接入点设备,因为转发器的优选实施例仅有几个信号调节元件及对所传送/接收的有线和无线信号没有数字信息处理能力。这使混合转发器30非常简洁且实质上免维护。此外,混合转发器30的优选实施例耗用非常小的功率、对信号透明、及不需要本地电源。混合转发器30还配置成提供到特定混合转发器的微微蜂窝小区40内或该微微蜂窝小区外面的客户机设备45的有线连接。
混合转发器30包括转换器单元166,其中O/E转换器162光连接到下行链路光纤36D,而E/O转换器160光连接到上行链路光纤36U。O/E转换器162电连接到频率M/D138及具体连接到其中的分频器150。E/O转换器160也电连接到频率M/D138及具体连接到其中的合频器140。分频器150和合频器140均电连接到A/F电子电路122。频率M/D138的分频器150还电连接到三端口信号导控元件200的端口P1,三端口信号导控元件200具有另外的端口P2和P3。在实施例中,信号导控元件200为循环器。
天线系统210电连接到信号导控元件200的输入/输出端口P2,而频率M/D138的合频器140电连接到输出端口P3。在实施例中,天线系统210包括一个或多个贴片天线,如2006年8月16日申请的、已转让给本申请的申请人的美国专利申请11/504,999中所公开的天线。同样,在实施例中,天线系统210针对与微微蜂窝小区40内(或者更具体地,由一个或多个转发器形成的微微蜂窝小区覆盖区44内)的一个或多个客户机设备MIMO通信进行配置。天线系统210在下面详细描述。
A/F电子电路122电连接到有线线路光缆端口220,在实施例中,其为或包括以太网光缆端口。光缆端口220适于接收有线线路光缆50的光缆连接器230,如以太网光缆连接器(插头)和以太网光缆,其通向有线客户机45(见图1)。在实施例中,光缆端口220为千兆以太网有线线路端口,及有线线路光缆50为以太网光缆。在实施例中,电功率线74可在光缆端口220处接近,及有线线路光缆50包括一段电功率线74以在有线线路光缆端口处经转发器30实现以太网供电。
在实施例中,前述DC功率转换器180电连接到转换器单元166并将电功率线71的电压或电平改变为转发器30中的功耗部件所需要的功率水平。在实施例中,DC功率转换器180为DC/DC功率转换器或AC/DC功率转换器,取决于电功率线74携载的功率信号71的类型。在实施例中,电功率线74包括标准电功率传送电导线,如标准远程通信和其它应用中使用的18-26AWG(美国导线规范)。
再次参考图1,在另一实施例中,电功率线72(虚线)从本地电源70通到混合转发器30(如通过一段光通信链路36或直接通到混合转发器),而不是从或通过前端20经光缆36,如电功率线74。在另一实施例中,电功率线72或74包括两根以上导线并携载多个电压。
混合转发器操作
混合转发器30配置成提供到至少一客户机设备45的无线和有线连接。因此,参考图5,在混合转发器30的操作中,下行链路光无线和有线信号S1D’和S2D’在下行链路光纤36D上从前端单元20传到混合转发器的转换器单元166中的O/E转换器162。O/E转换器162将光信号S1D’和S2D’转换回其电副本S1D和S2D。电信号S1D和S2D传给频率M/D138及其中的分频器150,其解复用这些信号,无线信号S1D发送给信号导控元件200,有线信号S2D发送给A/F电子电路122然后发送给有线线路光缆端口220。
信号导控元件200将信号S1D导向天线系统210,使其传送对应的下行链路自由空间电磁无线信号S1D”。由于客户机设备45A在微微蜂窝小区40内,信号S1D”由客户机设备天线46A或46B(假定天线46A)接收,这些天线可以是无线卡的一部分或移动电话天线。天线46A将电磁信号S1D”转换为其在客户机设备中的对应电信号S1D(其中未示出信号S1D)。之后,客户机设备45A处理电信号S1D,如将信号信息保存在存储器中、将信息显示为电子邮件或文本消息等。其间,有线信号S2D在有线线路光缆50上传给客户机设备45B(见图1)并在其中进行处理。
现在参考图7,在实施例中,客户机设备45A(图1)产生上行链路电无线信号S1U(未在客户机设备中示出),其由天线46A转换为对应的自由空间电磁信号S1U”。由于客户机设备45A位于微微蜂窝小区40内,电磁信号S1U”由转发器天线系统210导控,其将该信号转换回电信号S1U。其间,客户机设备45B经有线线路光缆50将有线上行链路信号S2U传给混合转发器30。
之后,信号S1U由信号导控元件200导控离开端口P3而传到频率M/D138及其中的合频器140。其间,信号S2U由A/F电子电路122放大和滤波并提供给频率M/D138及其中的合频器140。合频器140组合(复用)信号S1U和S2U并将它们提供给E/O转换器160。E/O转换器160将这些电信号转换为对应的光信号S1U’和S2U’。之后,这些光信号在上行链路光纤36U上传给混合前端单元20,在那里它们以上面描述的方式进行接收和处理。
MIMO操作
在优选实施例中,混合RoF系统10配置成支持MIMO操作。图8为混合RoF系统10的转发器端的示意图,示出了该系统的实施例,其中客户机设备45A包括两个天线46A和46B。该配置使能与客户机45A进行2x2MIMO无线通信同时还以下行链路和上行链路电有线信号S2D和S2U提供与客户机45B和45C的有线通信。
混合RoF系统10可设定为多种不同的MIMO配置之一,如1x2、2x1、2x3、3x2、3x3、3x4、4x3、4x4等,取决于具体的天线系统210的配置和特定客户机设备上可用的天线数量。具有多个天线和MIMO能力的客户机设备的实施例为具有多天线MIMO无线卡的膝上型电脑。
总的来说,在MIMO应用中,下行链路电无线信号S1D和对应的上行链路信号S1U为比特流的形式。对于MIMO应用,每一转发器天线系统和每一客户机天线系统用作发送和接收比特流段的发送和接收天线。作为备选,可以有单独的天线用于发送和接收。对于上行链路MIMO通信,每一转发器天线系统210接收由每一发射器天线46A和46B发送的整个上行链路电磁自由空间无线信号S1U”(即比特流段)的不同部分,使得在每一接收器天线处接收混在一起的比特流。同样,对于下行链路MIMO通信,每一天线46A和46B接收传送自每一发射器天线系统210的对应下行链路信号S1D”(即比特流段)的不同部分。因此,混合前端站20将下行链路信号S1D同时提供给不同的混合转发器30,尽管下行链路信号比特流根据MIMO信号处理在混合转发器之间分割。同样,客户机设备将上行链路信号比特流同时传送给不同的天线系统210,尽管上行链路信号比特流根据MIMO信号处理在客户机设备天线之间分割。
在实施例中,混合前端20适于执行电下行链路和上行链路信号比特流的MIMO信号处理,其通过执行将给定下行链路比特流信号适当分为用于每一转发器天线系统210的分开的下行链路比特流信号以获得MIMO增益的数学算法进行。同样,混合前端20适于适当地重新组合由每一天线系统210接收的混在一起的上行链路信号比特流。客户机设备45A还优选具有MIMO信号处理能力使得其可使用MIMO技术与天线系统210通信。
适合在本发明中使用的MIMO信号处理方法的例子例如在Arogyaswami等所写的、题为“An overview of MIMO communications a key to gigabitwireless”的文章中讨论,该文章刊登在2004年二月出版的Proceedings of theIEEE的第2期第92卷上,其通过引用组合于此。在实施例中,无线信号转换器120包括适于执行前述MIMO信号处理的MIMO芯片124。适合在前端单元20中使用以提供MIMO能力的MIMO芯片的例子为802.11n兼容的MIMO芯片,如可从加利福尼亚州Irvine的Broadcom,Inc.通过零件号BCM2055获得。
通过使用MIMO通信方法,从两个或两个以上转发器天线系统210发送独立的下行链路和上行链路信号(比特流),这导致高达N倍的比特率的提高,其中N为所使用的转发器天线系统210的数量及所使用的客户机天线45的数量中较小的那一个。MIMO方法使采用单一天线的转发器的微微蜂窝无线系统能满足未来无线通信标准如IEEE无线通信标准(IEEE 802.11n)所预期的较高数据传输率要求。
图9为根据本发明的混合转发器30的实施例的示意图,其配置成提供2xNMIMO能力。转发器30包括两个天线系统210。图10为图9的混合转发器30用于执行与客户机设备45A MIMO无线通信及与相邻的客户机设备45B和45C有线通信时的示意图。MIMO无线通信包括下行链路自由空间电磁信号S1D”及其对应的上行链路自由空间电磁信号S1U”。这些信号以上面描述的方式进行处理。
在图10中,在实施例中,光缆36包括两组下行链路和上行链路光纤36D和36U以处理两个不同的无线信号(如具有不同频率的无线信号)。在备选实施例中,图9的混合转发器30和混合前端20(图3)配置成将不同频率的下行链路和上行链路无线信号频率复用到相同下行链路和上行链路光纤上。
数据和功率范围扩展
混合RoF系统10的例子通过使能连接到加电的壁装插座并对下一段传统“微微蜂窝小区”光缆将有线信号转换为无线信号而扩展传统蜂窝(如微微蜂窝)网络的最大功率和数据范围。图11为RoF网络系统10的转发器端的示意图,其中电功率在本地提供而不是经光缆36包含的电功率线74完全来自前端20(图1),及其中有线信号(如以太网有线线路信号)转换为混合前端20的无线信号上行数据流。
图11的混合RoF系统10的实施例包括功率/数据扩展器单元260,该单元包括经(多导线)本地电功率线72携载的电功率信号提供电功率的电源70。本地电功率线72将电功率携载到上部缆跨302上的混合转发器30,其最远离混合前端20,而更靠近混合前端20的下部缆跨301上的混合转发器由链路36包含的功率线路74供电。在功率扩展的实施例中,电源70经电线310和插头312由电插座308供电。
在数据扩展的实施例中,功率/数据扩展器单元260包括有线到无线转换器单元(如WLAN路由器)322,适于将下部缆跨301上携载的下行链路有线信号S2D(如以太网编码的有线线路信号)转换为上部缆跨302中的多个下行链路无线信号S1D。同样,功率/数据扩展器单元260适于将上部缆跨302上携载的上行链路无线信号S1U转换为上行链路有线信号S2U,该上行链路有线信号经下部缆跨301传回到混合前端20。
下拉式结构
本发明的混合RoF系统10的优点在于其可以与安装无线微微蜂窝系统一样的方式进行安装,转发器在房间角落处吊在桌面高度下面以易于接近有线线路以太网连接。在这样的办公室环境中,用户在办公室的任何地方均具有宽带无线连通性,及具有有线“无忧”快速有线线路以太网连通性,所有这些连通性均来自单一混合转发器。
图12A为混合RoF系统10的转发器端的示意图,其中混合转发器30经光缆36从天花板402上方下拉到房间(如办公室、图书馆空间等)400内。客户机设备45示为位于房间400中的桌子406上。该下拉式结构使能与客户机设备45无线通信及经有线线路光缆50方便地有线通信。为了图示目的,图12A中所示的MIMO天线系统210包括贴片天线。图12A的下拉式结构使系统用户能容易地将有线线路光缆50插入客户机设备45内及插入转发器30的端口220内以获得有线连接。
图12B与图12A类似,其中一客户机设备45通过混合转发器30无线通信,而另一客户机设备45经有线线路光缆50通过混合转发器有线通信。
图13为与图12类似的示意图,其中混合转发器30保持在天花板402上方,及有线线路光缆50插入有线线路光缆端口220。有线线路光缆50下拉穿过天花板402(例如穿过其中形成的孔410)使得其可插入客户机设备45。只要可接近转发器,或者如果有线线路光缆50插入混合转发器并从天花板下拉使得用户不需要必须将有线线路光缆50插入混合转发器,该结构隐藏了转发器30且方便。
图14A为与图13类似的示意图,但未提供有线线路光缆端口220。而是,有线线路光缆50直接连接到混合转发器30,如在放大器/滤波器单元122处,如图15中所示的混合转发器的局部特写图所示。图14A还示出了一客户机设备45通过混合转发器30无线通信而另一客户机设备45通过混合转发器有线通信的实施例。
图14B为与图14A类似的示意图,其中第一有线线路光缆50将转发器30连接到墙壁403中的壁装插座420,及第二有线线路光缆50将客户机设备45之一连接到该壁装插座。在实施例中,壁装插座420包括两个或两个以上插座(如RJ型插座)422使得多个客户机设备可有线连接到转发器30。
优点
混合转发器30和包括至少一混合转发器的混合RoF系统10相较单独提供无线和有线连通性的转发器和RoF天线系统具有多个优点。例如,混合RoF系统10不需要分开的有线和无线网络基础设施,而是在单一集成体系结构中提供无线和有线连通性。此外,任何新网络部署可使用一个光缆网络进行。此外,本发明系统的混合性质相对于具有分开的有线和无线基础设施部署具有更低的安装成本。同样,本发明的混合RoF系统有助于逐个用户地从有线迁移到无线连接,而不必覆盖新的成缆。
混合RoF系统10还提供改善的连接可靠性,其通过在所希望位置提供的保证有线线路连接实现。混合RoF系统10还通过使用另外的有线线路数据扩展传统蜂窝网络的最大数据范围,前述另外的有线线路数据对下一段传统RoF光缆转换为无线数据。混合RoF系统10还通过下拉式有线线路以太网光缆的本地供电而扩展传统蜂窝网络的最大功率范围。
随着技术进步,本发明的有线和无线特征可容易地升级。例如,MIMO能力可按需更新,如使用小区结合从1x2MIMO升级到2x3MIMO或4x6MIMO等,如2006年2月17日申请的美国专利申请11/357,640中描述的,该申请通过引用组合于此。
混合RoF系统10还相对容易部署到现有建筑基础设施中。例如,当光缆部署在天花板顶上而不是部署在建筑墙壁内时,本发明系统可以同样的方式进行部署。
很显然,在不背离本发明精神和范围的情况下,本领域技术人员可对本发明进行多种修改和变化。因此,如果对本发明的修改和变化在所附权利要求及其等效方案的范围内,则本发明覆盖这些修改和变化。
Claims (20)
1.用于将无线和有线信号从混合前端分发到至少一客户机设备的混合转发器,包括:
适于将来自前端单元的无线和有线光信号转换为有线和无线电信号的混合转换器,反之亦然;
电连接到所述转换器并适于对有线和无线电信号进行复用和解复用的频率复用器/解复用器;
经信号导控元件电连接到频率复用器/解复用器的天线系统,信号导控元件配置成使天线系统能发射和接收来自至少一客户机设备的无线信号;及
有线线路光缆端口,电连接到频率复用器/解复用器并适于连接到有线线路光缆以在其与至少一客户机设备之间传送信号。
2.根据权利要求1的混合转发器,还包括布置在有线线路光缆端口和频率复用器/解复用器之间的放大器/滤波器电子电路单元。
3.根据权利要求1-2任一所述的混合转发器,其中所述转发器包括连接到有线线路光缆端口的有线线路光缆。
4.根据权利要求1-3任一所述的混合转发器,其中天线系统适于使用多输入/多输出通信与至少一客户机设备通信。
5.根据权利要求1-4任一所述的混合转发器,其中天线系统包括至少一贴片天线。
6.混合RoF通信系统,包括:
至少一根据权利要求1-5任一所述的混合转发器;
光连接到至少一混合转发器并适于传送无线和有线光信号的光缆。
7.根据权利要求6的混合RoF通信系统,其中所述光缆包括下行链路和上行链路光纤。
8.根据权利要求6-7任一所述的混合RoF通信系统,还包括光连接到所述光缆的混合前端。
9.根据权利要求6-8任一所述的混合RoF通信系统,其中天线系统适于使用多输入/多输出通信与至少一客户机设备通信。
10.根据权利要求6-9任一所述的混合RoF通信系统,其中至少一客户机设备之一经连接到有线线路光缆端口的以太网光缆有线连接到至少一混合转发器。
11.根据权利要求6-10任一所述的混合RoF通信系统,其中至少一客户机设备位于具有天花板的房间中,及其中至少一混合转发器部署在天花板下方或天花板上方。
12.根据权利要求6-11任一所述的混合RoF通信系统,其中所述光缆包括适于将电功率从前端单元传送到至少一混合转发器的电功率线。
13.根据权利要求12的混合RoF通信系统,还包括功率/数据扩展器单元,该扩展器单元连接到光缆并适于向至少一混合转发器中的一个或多个转发器提供电功率及将下行数据流光有线信号转换为上行数据流光无线信号。
14.提供自混合前端到至少一客户机设备的有线和无线连通性的方法,包括:
部署至少一混合转发器,该混合转发器光连接到前端单元并适于将来自混合前端的光有线和无线信号转换为电有线和无线信号;及
在至少一混合转发器中,
(i)将电无线信号导控到多输入/多输出天线系统以与至少一客户机设备无线通信;及
(ii)经用于将转发器连接到至少一客户机设备的有线线路光缆将电有线信号导控到有线线路光缆端口及客户机设备。
15.根据权利要求14的方法,其中有线信号包括千兆以太网信号。
16.根据权利要求14或15的方法,包括在单一光载体上发送来自混合前端的有线和无线光信号。
17.能够提供到至少一客户机设备的无线和有线连通性的混合RoF通信系统,包括:
适于基于光缆发送和接收有线和无线光信号的混合前端;
至少一混合转发器,该转发器光连接到光缆并配置成将有线和无线光信号转换为对应的有线和无线电信号,反之亦然,混合转发器还配置成经天线系统将无线电信号无线发送到至少一客户机设备及经用于将混合转发器连接到至少一客户机设备的有线线路光缆将有线信号有线发送到至少一客户机设备。
18.根据权利要求17的系统,其中所述天线系统和至少一客户机设备配置成在至少一混合转发器形成的微微蜂窝小区覆盖区内进行多输入/多输出通信。
19.根据权利要求17或18的系统,其中所述光缆包括:
下行链路光纤,用于将下行链路有线和无线光信号从混合前端传送到至少一混合转发器;及
上行链路光纤,用于将上行链路有线和无线光信号从至少一混合转发器传送到混合前端。
20.根据权利要求17-19任一所述的系统,其中所述光缆包括将电功率从电源传到至少一混合转发器中的一个或多个转发器的电功率线,其中所述电源经前端站电连接到电功率线或直接连接到光纤通信链路。
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104467970A (zh) * | 2014-11-28 | 2015-03-25 | 北京邮电大学 | 信号混合传输的转换装置和方法 |
CN106792763A (zh) * | 2017-02-15 | 2017-05-31 | 辽宁大唐国际新能源有限公司 | 一种实现风力发电机组无线信号全覆盖的通信系统 |
CN107925841A (zh) * | 2015-07-29 | 2018-04-17 | 奈达科技瑞典有限公司 | 定位网络中适于实现语音通信的系统、方法、装置和节点 |
CN108352858A (zh) * | 2015-11-10 | 2018-07-31 | 三菱电机株式会社 | 信息通信装置、信息通信系统以及信息通信方法 |
CN108847722A (zh) * | 2018-06-27 | 2018-11-20 | 广东工业大学 | 一种多天线能量传输设备、方法和装置 |
CN110168832A (zh) * | 2016-12-21 | 2019-08-23 | Abb瑞士股份有限公司 | 用于功率电子元件与控制组件之间的通信的通信网络 |
Families Citing this family (72)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8396368B2 (en) * | 2009-12-09 | 2013-03-12 | Andrew Llc | Distributed antenna system for MIMO signals |
IT1403065B1 (it) | 2010-12-01 | 2013-10-04 | Andrew Wireless Systems Gmbh | Distributed antenna system for mimo signals. |
US20100054746A1 (en) | 2007-07-24 | 2010-03-04 | Eric Raymond Logan | Multi-port accumulator for radio-over-fiber (RoF) wireless picocellular systems |
US8175459B2 (en) * | 2007-10-12 | 2012-05-08 | Corning Cable Systems Llc | Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same |
US8260144B2 (en) | 2008-03-12 | 2012-09-04 | Hypres Inc. | Digital radio frequency tranceiver system and method |
CN101741660A (zh) * | 2008-11-20 | 2010-06-16 | 深圳富泰宏精密工业有限公司 | 电器连接装置 |
JP2012517190A (ja) | 2009-02-03 | 2012-07-26 | コーニング ケーブル システムズ リミテッド ライアビリティ カンパニー | 光ファイバベースの分散型アンテナシステム、構成要素、及びそのモニタリング及び構成のための関連の方法 |
US9673904B2 (en) | 2009-02-03 | 2017-06-06 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
EP3399672B1 (en) | 2009-03-05 | 2022-07-27 | CommScope Technologies LLC | Methods, systems and devices for integrating wireless technology into a fiber optic network |
US8346091B2 (en) * | 2009-04-29 | 2013-01-01 | Andrew Llc | Distributed antenna system for wireless network systems |
US20100296423A1 (en) * | 2009-05-19 | 2010-11-25 | Greenlane Investments Llc | Multi-Medium Signal Transmission System and Method |
EP2253980A1 (en) * | 2009-05-23 | 2010-11-24 | CCS Technology Inc. | Radio-over-fiber optical fiber cable system and cable of the same |
EP2253981B1 (en) | 2009-05-23 | 2011-11-30 | CCS Technology Inc. | Connector housing of a radio-over-fiber optical fiber cable system |
EP2343777B1 (en) | 2009-05-26 | 2015-10-07 | Huawei Technologies Co., Ltd. | Antenna device |
US9590733B2 (en) * | 2009-07-24 | 2017-03-07 | Corning Optical Communications LLC | Location tracking using fiber optic array cables and related systems and methods |
CN102045125B (zh) * | 2009-10-26 | 2013-12-04 | 华为技术有限公司 | 一种光分路器、光分路器端口识别方法及装置 |
DE102009052936B8 (de) * | 2009-11-12 | 2012-05-10 | Andrew Wireless Systems Gmbh | Master-Einheit, Remote-Einheit sowie Multiband-Übertragungssystem |
US8280259B2 (en) | 2009-11-13 | 2012-10-02 | Corning Cable Systems Llc | Radio-over-fiber (RoF) system for protocol-independent wired and/or wireless communication |
IT1398025B1 (it) | 2010-02-12 | 2013-02-07 | Andrew Llc | Distributed antenna system for mimo communications. |
US8428081B2 (en) * | 2010-04-06 | 2013-04-23 | Broadcom Corporation | Method and system for connector and/or cable with configurable antenna for ethernet and wireless applications |
JP5373690B2 (ja) * | 2010-04-16 | 2013-12-18 | パナソニック株式会社 | 通信システム、メインユニット、無線アクセスユニット及び通信方法 |
US9525488B2 (en) | 2010-05-02 | 2016-12-20 | Corning Optical Communications LLC | Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods |
CN203340086U (zh) * | 2010-05-02 | 2013-12-11 | 康宁光缆系统有限责任公司 | 用于基于光纤的分布式通信系统的分配单元 |
US20110268446A1 (en) | 2010-05-02 | 2011-11-03 | Cune William P | Providing digital data services in optical fiber-based distributed radio frequency (rf) communications systems, and related components and methods |
CN203251299U (zh) * | 2010-06-04 | 2013-10-23 | Ccs技术股份有限公司 | 基于光纤的分布式通信系统 |
US8961035B2 (en) | 2010-08-02 | 2015-02-24 | Adc Telecommunications, Inc. | Architecture for a fiber optic network |
US8570914B2 (en) | 2010-08-09 | 2013-10-29 | Corning Cable Systems Llc | Apparatuses, systems, and methods for determining location of a mobile device(s) in a distributed antenna system(s) |
EP2606707A1 (en) | 2010-08-16 | 2013-06-26 | Corning Cable Systems LLC | Remote antenna clusters and related systems, components, and methods supporting digital data signal propagation between remote antenna units |
KR102163548B1 (ko) | 2010-10-01 | 2020-10-12 | 콤스코프 테크놀로지스, 엘엘씨 | 엠아이엠오 신호들을 위한 분산 안테나 시스템 |
US9252874B2 (en) | 2010-10-13 | 2016-02-02 | Ccs Technology, Inc | Power management for remote antenna units in distributed antenna systems |
CN102457384A (zh) * | 2010-10-28 | 2012-05-16 | 鸿富锦精密工业(深圳)有限公司 | 电源装置 |
US9894537B2 (en) | 2010-11-30 | 2018-02-13 | Corning Incorporated | Autonomous proximity-based standby mode switching remote antenna unit |
US8982726B2 (en) * | 2011-01-17 | 2015-03-17 | Shahram Davari | Network device |
WO2012115843A1 (en) | 2011-02-21 | 2012-08-30 | Corning Cable Systems Llc | Providing digital data services as electrical signals and radio-frequency (rf) communications over optical fiber in distributed communications systems, and related components and methods |
EP2702710A4 (en) | 2011-04-29 | 2014-10-29 | Corning Cable Sys Llc | DETERMINING THE TRANSMISSION DELAY OF COMMUNICATIONS IN DISTRIBUTED ANTENNA SYSTEMS AND CORRESPONDING COMPONENTS, SYSTEMS AND METHODS |
CN103609146B (zh) | 2011-04-29 | 2017-05-31 | 康宁光缆系统有限责任公司 | 用于增加分布式天线系统中的射频(rf)功率的系统、方法和装置 |
EP2710691B1 (en) | 2011-05-17 | 2016-02-24 | 3M Innovative Properties Company | Remote socket apparatus |
JP6072011B2 (ja) | 2011-05-17 | 2017-02-01 | スリーエム イノベイティブ プロパティズ カンパニー | 統合型建物内ネットワーク |
KR20130004964A (ko) * | 2011-07-05 | 2013-01-15 | 주식회사 엘지유플러스 | 무선 인터넷용 듀얼 와이파이 장치 및 그 장치를 이용한 무선 인터넷 시스템 |
US20130014985A1 (en) * | 2011-07-12 | 2013-01-17 | Ferrara Vincent M | Ceiling Deployable Electric and Data Ports Module |
US20130170840A1 (en) * | 2011-07-28 | 2013-07-04 | Samsung Electro-Mechanics Company, Ltd. | Hybrid Multi-Band Communication System |
KR101208851B1 (ko) * | 2011-11-03 | 2012-12-05 | 이엠씨테크(주) | 무선 인터넷용 와이파이 장치 및 그 장치를 이용한 무선 인터넷 시스템 |
US10110307B2 (en) | 2012-03-02 | 2018-10-23 | Corning Optical Communications LLC | Optical network units (ONUs) for high bandwidth connectivity, and related components and methods |
EP2839593A1 (en) | 2012-04-20 | 2015-02-25 | Tyco Electronics Raychem BVBA | Wireless drop in a fiber-to-the-home network |
WO2013162988A1 (en) * | 2012-04-25 | 2013-10-31 | Corning Cable Systems Llc | Distributed antenna system architectures |
CN104350684B (zh) * | 2012-05-30 | 2016-06-08 | 日本电气株式会社 | 光/无线通信装置、光/无线通信方法和光/无线通信系统 |
WO2014008084A1 (en) * | 2012-07-02 | 2014-01-09 | Corning Cable Systems Llc | Cable for radio frequency communication |
US9455784B2 (en) | 2012-10-31 | 2016-09-27 | Corning Optical Communications Wireless Ltd | Deployable wireless infrastructures and methods of deploying wireless infrastructures |
CA3123048A1 (en) * | 2013-02-16 | 2014-08-21 | Cable Television Laboratories, Inc. | Multiple-input multiple-output (mimo) communication system |
US9557505B2 (en) * | 2013-03-18 | 2017-01-31 | Commscope Technologies Llc | Power and optical fiber interface |
US9414135B2 (en) * | 2013-12-24 | 2016-08-09 | Nec Corporation | Flexible-client, flexible-line interface transponder |
WO2016022187A2 (en) * | 2014-05-12 | 2016-02-11 | Chirp Microsystems | Time of flight range finding with an adaptive transmit pulse and adaptive receiver processing |
US10659163B2 (en) | 2014-09-25 | 2020-05-19 | Corning Optical Communications LLC | Supporting analog remote antenna units (RAUs) in digital distributed antenna systems (DASs) using analog RAU digital adaptors |
WO2016071902A1 (en) | 2014-11-03 | 2016-05-12 | Corning Optical Communications Wireless Ltd. | Multi-band monopole planar antennas configured to facilitate improved radio frequency (rf) isolation in multiple-input multiple-output (mimo) antenna arrangement |
CN105656524B (zh) * | 2014-11-12 | 2018-08-28 | 江苏中兴微通信息科技有限公司 | 多频多模超高速mimo无线通信方法及装置 |
CN105656525B (zh) * | 2014-11-12 | 2018-08-28 | 江苏中兴微通信息科技有限公司 | 一种多频多模超高速mimo无线通信方法及装置 |
WO2016075696A1 (en) | 2014-11-13 | 2016-05-19 | Corning Optical Communications Wireless Ltd. | Analog distributed antenna systems (dass) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (rf) communications signals |
WO2016098111A1 (en) | 2014-12-18 | 2016-06-23 | Corning Optical Communications Wireless Ltd. | Digital- analog interface modules (da!ms) for flexibly.distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (dass) |
EP3235336A1 (en) | 2014-12-18 | 2017-10-25 | Corning Optical Communications Wireless Ltd. | Digital interface modules (dims) for flexibly distributing digital and/or analog communications signals in wide-area analog distributed antenna systems (dass) |
US9787400B2 (en) * | 2015-04-08 | 2017-10-10 | Corning Optical Communications LLC | Fiber-wireless system and methods for simplified and flexible FTTX deployment and installation |
US9681313B2 (en) | 2015-04-15 | 2017-06-13 | Corning Optical Communications Wireless Ltd | Optimizing remote antenna unit performance using an alternative data channel |
US9948349B2 (en) | 2015-07-17 | 2018-04-17 | Corning Optical Communications Wireless Ltd | IOT automation and data collection system |
US9826479B2 (en) | 2015-10-13 | 2017-11-21 | Aerohive Networks, Inc. | Hybrid low power network device |
CA3015253A1 (en) | 2016-01-18 | 2017-07-27 | Viavi Solutions Inc. | Method and apparatus for the detection of distortion or corruption of cellular communication signals |
US10341023B2 (en) * | 2016-10-19 | 2019-07-02 | Centurylink Intellectual Property Llc | Terminal enclosure wireless base station |
US10735838B2 (en) | 2016-11-14 | 2020-08-04 | Corning Optical Communications LLC | Transparent wireless bridges for optical fiber-wireless networks and related methods and systems |
WO2018091449A1 (en) * | 2016-11-15 | 2018-05-24 | CommScope Connectivity Belgium BVBA | Optical and power network for modular equipment |
US10545219B2 (en) | 2016-11-23 | 2020-01-28 | Chirp Microsystems | Three dimensional object-localization and tracking using ultrasonic pulses |
US10250658B2 (en) | 2017-03-17 | 2019-04-02 | The Directv Group, Inc. | Hybrid media stream delivery using multiple network connections |
US10805817B2 (en) * | 2017-11-22 | 2020-10-13 | Comcast Cable Communications, Llc | Near-field communication over service networks |
WO2020101870A1 (en) * | 2018-11-15 | 2020-05-22 | Corning Optical Communications LLC | Hybrid fiber/coaxial taps, and related methods and networks |
CN114124224A (zh) | 2020-08-26 | 2022-03-01 | 合圣科技股份有限公司 | 无线射频转换系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1518247A (zh) * | 2003-01-27 | 2004-08-04 | 冲电气工业株式会社 | 中继通信系统 |
CN1720679A (zh) * | 2002-09-10 | 2006-01-11 | 哈里公司 | 提供混合式光学/无线通信的通信系统及相关方法 |
CN101005321A (zh) * | 2006-01-18 | 2007-07-25 | 华为技术有限公司 | 基站和有线网络互连的方法和系统 |
Family Cites Families (679)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449246A (en) | 1980-05-02 | 1984-05-15 | Harris Corporation | Orderwire communication system |
US4365865A (en) | 1981-01-30 | 1982-12-28 | Sea-Log Corporation | Hybrid cable construction |
US4665560A (en) | 1985-05-20 | 1987-05-12 | Texas Instruments Incorporated | Wide band automatic gain control with limiting amplifiers |
DE3700044A1 (de) | 1987-01-02 | 1988-07-21 | Brenner Edeltraud | Elastische fussunterlage zum einlegen in schuhe |
NO175510C (no) | 1987-03-24 | 1994-10-19 | Mitsubishi Electric Corp | Signalnivåforsterker for höyfrekvenssignaler |
IT1202720B (it) | 1987-03-31 | 1989-02-09 | Pirelli Cavi Spa | Cavo per il trasporto di energia elettrica e la trasmissione di seganli ottici |
US4896939A (en) | 1987-10-30 | 1990-01-30 | D. G. O'brien, Inc. | Hybrid fiber optic/electrical cable and connector |
US4889977A (en) | 1987-12-21 | 1989-12-26 | Southwestern Bell Telephone Company | Method of identifying the disposition of plug-in units at a warehouse |
GB2214755B (en) | 1988-01-29 | 1992-06-24 | Walmore Electronics Limited | Distributed antenna system |
US5682256A (en) | 1988-11-11 | 1997-10-28 | British Telecommunications Public Limited Company | Communications system |
US5042086A (en) | 1988-11-16 | 1991-08-20 | Dylor Corporation | Method and means for transmitting large dynamic analog signals in optical fiber systems |
NZ232223A (en) | 1989-01-27 | 1993-03-26 | British Telecomm | Alternate burst communication for cordless phones re-established after channel failure |
US5726984A (en) | 1989-01-31 | 1998-03-10 | Norand Corporation | Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
US5790536A (en) | 1989-01-31 | 1998-08-04 | Norand Corporation | Hierarchical communication system providing intelligent data, program and processing migration |
US5001303A (en) | 1989-05-26 | 1991-03-19 | Coleman Cable Systems, Inc. | Metallic sheath electrical cable |
US5056109A (en) | 1989-11-07 | 1991-10-08 | Qualcomm, Inc. | Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system |
AU632891B2 (en) | 1990-01-18 | 1993-01-14 | Andrew Corporation | Distributed amplifier network management system |
US5187803A (en) | 1990-01-18 | 1993-02-16 | Andrew Corporation | Regenerative rf bi-directional amplifier system |
US6389010B1 (en) | 1995-10-05 | 2002-05-14 | Intermec Ip Corp. | Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
FR2659501B1 (fr) | 1990-03-09 | 1992-07-31 | Alcatel Espace | Systeme d'antenne imprimee active a haut rendement pour radar spatial agile. |
US5039195A (en) | 1990-05-29 | 1991-08-13 | At&T Bell Laboratories | Composite cable including portions having controlled flexural rigidities |
FI86016C (fi) | 1990-06-12 | 1992-06-25 | Nokia Oy Ab | Optiskt oeverfoeringssystem och -foerfarande. |
EP0476569B1 (en) | 1990-09-17 | 1996-12-18 | Nec Corporation | Mobile communication system |
CA2049680A1 (en) | 1990-09-28 | 1992-03-29 | Irwin L. Newberg | Reconfigurable rf matching circuit |
IL100213A (en) | 1990-12-07 | 1995-03-30 | Qualcomm Inc | Mikrata Kedma phone system and its antenna distribution system |
US5802173A (en) | 1991-01-15 | 1998-09-01 | Rogers Cable Systems Limited | Radiotelephony system |
US5809395A (en) | 1991-01-15 | 1998-09-15 | Rogers Cable Systems Limited | Remote antenna driver for a radio telephony system |
US5574815A (en) | 1991-01-28 | 1996-11-12 | Kneeland; Foster C. | Combination cable capable of simultaneous transmission of electrical signals in the radio and microwave frequency range and optical communication signals |
CA2054591C (en) | 1991-02-28 | 1996-09-03 | Giovanni Vannucci | Wireless telecommunication systems |
EP0501314B1 (en) | 1991-02-28 | 1998-05-20 | Hewlett-Packard Company | Modular distributed antenna system |
DK52091D0 (da) | 1991-03-22 | 1991-03-22 | Esel Krabbe Systems As | Informationssystem |
US5189718A (en) | 1991-04-02 | 1993-02-23 | Siecor Corporation | Composite cable containing light waveguides and electrical conductors |
US5125060A (en) | 1991-04-05 | 1992-06-23 | Alcatel Na Cable Systems, Inc. | Fiber optic cable having spliceless fiber branch and method of making |
US5210812A (en) | 1991-04-05 | 1993-05-11 | Alcatel Na Cable Systems, Inc. | Optical fiber cable having spliced fiber branch and method of making the same |
CA2067637C (en) | 1991-07-29 | 1997-11-18 | John Lappington | System for distributing radio telephone signals over a cable television network |
JP2897492B2 (ja) | 1991-10-24 | 1999-05-31 | 日本電気株式会社 | 移動通信装置 |
US5268971A (en) | 1991-11-07 | 1993-12-07 | Alcatel Na Cable Systems, Inc. | Optical fiber/metallic conductor composite cable |
US5396224A (en) | 1991-11-22 | 1995-03-07 | Hewlett-Packard Company | Telemetered patient location system and method |
GB2268653B (en) | 1991-12-16 | 1995-08-30 | Motorola Inc | Optical distribution system |
US5339184A (en) | 1992-06-15 | 1994-08-16 | Gte Laboratories Incorporated | Fiber optic antenna remoting for multi-sector cell sites |
EP0578260B1 (en) | 1992-07-09 | 1999-10-20 | Nec Corporation | TDMA cellular mobile communciation system |
US5627879A (en) | 1992-09-17 | 1997-05-06 | Adc Telecommunications, Inc. | Cellular communications system with centralized base stations and distributed antenna units |
US5339058A (en) | 1992-10-22 | 1994-08-16 | Trilogy Communications, Inc. | Radiating coaxial cable |
US5546443A (en) | 1992-10-26 | 1996-08-13 | Ericsson Ge Mobile Communications, Inc. | Communication management technique for a radiotelephone system including microcells |
US5260957A (en) | 1992-10-29 | 1993-11-09 | The Charles Stark Draper Laboratory, Inc. | Quantum dot Laser |
JP2777861B2 (ja) | 1992-12-10 | 1998-07-23 | 国際電信電話株式会社 | 移動通信方式 |
US5949564A (en) | 1993-03-01 | 1999-09-07 | British Telecommunications Public Limited Company | Transducer |
US6970434B1 (en) | 1995-06-07 | 2005-11-29 | Broadcom Corporation | Hierarchical communication system providing intelligent data, program and processing migration |
US7924783B1 (en) | 1994-05-06 | 2011-04-12 | Broadcom Corporation | Hierarchical communications system |
US5519830A (en) | 1993-06-10 | 1996-05-21 | Adc Telecommunications, Inc. | Point-to-multipoint performance monitoring and failure isolation system |
US5377035A (en) | 1993-09-28 | 1994-12-27 | Hughes Aircraft Company | Wavelength division multiplexed fiber optic link for RF polarization diversity receiver |
US6088590A (en) | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
CA2118355C (en) | 1993-11-30 | 2002-12-10 | Michael James Gans | Orthogonal polarization and time varying offsetting of signals for digital data transmission or reception |
US5960344A (en) | 1993-12-20 | 1999-09-28 | Norand Corporation | Local area network having multiple channel wireless access |
US5790606A (en) | 1994-01-11 | 1998-08-04 | Ericsson Inc. | Joint demodulation using spatial maximum likelihood |
US5457557A (en) | 1994-01-21 | 1995-10-10 | Ortel Corporation | Low cost optical fiber RF signal distribution system |
US5444564A (en) | 1994-02-09 | 1995-08-22 | Hughes Aircraft Company | Optoelectronic controlled RF matching circuit |
KR100322813B1 (ko) | 1994-03-30 | 2002-06-26 | 내쉬 로저 윌리엄 | 무선주파수피변조광학방사원및이를포함하는파이버를통한무선통신시스템 |
GB2290195B (en) | 1994-06-10 | 1998-08-05 | Northern Telecom Ltd | Automatic determination and tuning of pico-cell topology for low-power wireless systems |
US5469523A (en) | 1994-06-10 | 1995-11-21 | Commscope, Inc. | Composite fiber optic and electrical cable and associated fabrication method |
US5557698A (en) | 1994-08-19 | 1996-09-17 | Belden Wire & Cable Company | Coaxial fiber optical cable |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
US5602903A (en) | 1994-09-28 | 1997-02-11 | Us West Technologies, Inc. | Positioning system and method |
DE69519384T2 (de) | 1994-09-29 | 2001-05-23 | British Telecomm | Optische Faser mit Quantenpunkten |
US5910776A (en) | 1994-10-24 | 1999-06-08 | Id Technologies, Inc. | Method and apparatus for identifying locating or monitoring equipment or other objects |
JP3290831B2 (ja) | 1994-11-21 | 2002-06-10 | 明星電気株式会社 | アンテナ装置及び基地局 |
JP2616468B2 (ja) | 1994-11-25 | 1997-06-04 | 日本電気株式会社 | 光マイクロセル伝送方式 |
US6006069A (en) | 1994-11-28 | 1999-12-21 | Bosch Telecom Gmbh | Point-to-multipoint communications system |
US5606725A (en) | 1994-11-29 | 1997-02-25 | Xel Communications, Inc. | Broadband network having an upstream power transmission level that is dynamically adjusted as a function of the bit error rate |
CA2162515C (en) | 1994-12-22 | 2000-03-21 | Leonard George Cohen | Jumper tracing system |
US5579341A (en) | 1994-12-29 | 1996-11-26 | Motorola, Inc. | Multi-channel digital transceiver and method |
GB9508901D0 (en) | 1995-05-02 | 1995-06-21 | Northern Telecom Ltd | Communications system |
US5854986A (en) | 1995-05-19 | 1998-12-29 | Northern Telecom Limited | Cellular communication system having device coupling distribution of antennas to plurality of transceivers |
IL114176A (en) | 1995-06-15 | 2000-02-29 | Jolt Ltd | Wireless communication system |
US5598288A (en) | 1995-07-31 | 1997-01-28 | Northrop Grumman Corporation | RF fiber optic transmission utilizing dither |
EP0805569B1 (en) | 1995-08-23 | 2004-04-21 | Ntt Mobile Communications Network Inc. | Optical fiber transmission system |
US6665308B1 (en) | 1995-08-25 | 2003-12-16 | Terayon Communication Systems, Inc. | Apparatus and method for equalization in distributed digital data transmission systems |
US5677974A (en) | 1995-08-28 | 1997-10-14 | Southern New England Telephone Company | Hybrid communications and power cable and distribution method and network using the same |
EP0762674A3 (de) | 1995-09-08 | 2001-03-21 | Siemens Aktiengesellschaft | Verfahren und Schaltungsanordnung zum Übertragen von Empfangssignalen von einer Antenne zu einer Basisstation eines Funksystems |
JP2900853B2 (ja) * | 1995-09-14 | 1999-06-02 | 日本電気株式会社 | 無線基地局および無線ローカルエリアネットワークおよび光ファイバ給電線装置 |
US5903834A (en) | 1995-10-06 | 1999-05-11 | Telefonaktiebolaget L/M Ericsson | Distributed indoor digital multiple-access cellular telephone system |
US6005884A (en) | 1995-11-06 | 1999-12-21 | Ems Technologies, Inc. | Distributed architecture for a wireless data communications system |
US5694232A (en) | 1995-12-06 | 1997-12-02 | Ericsson Raynet | Full duplex optical modem for broadband access network |
US5809431A (en) | 1995-12-06 | 1998-09-15 | Stanford Telecommunications, Inc. | Local multipoint distribution system |
US5839052A (en) | 1996-02-08 | 1998-11-17 | Qualcom Incorporated | Method and apparatus for integration of a wireless communication system with a cable television system |
US5867763A (en) * | 1996-02-08 | 1999-02-02 | Qualcomm Incorporated | Method and apparatus for integration of a wireless communication system with a cable T.V. system |
US6177911B1 (en) | 1996-02-20 | 2001-01-23 | Matsushita Electric Industrial Co., Ltd. | Mobile radio antenna |
US6931183B2 (en) | 1996-03-29 | 2005-08-16 | Dominion Lasercom, Inc. | Hybrid electro-optic cable for free space laser antennas |
US6348986B1 (en) | 1996-03-29 | 2002-02-19 | Dominion Lasercom. Inc. | Wireless fiber-coupled telecommunication systems based on atmospheric transmission of laser signals |
US5880867A (en) | 1996-03-29 | 1999-03-09 | Intermec Ip Corp. | Infrared backbone communication network having a radio frequency backup channel |
CA2251959C (en) | 1996-04-19 | 2001-12-25 | Lgc Wireless, Inc. | Distribution of radio-frequency signals through low bandwidth infrastructures |
US5983070A (en) | 1996-04-19 | 1999-11-09 | Lgc Wireless, Inc. | Method and system providing increased antenna functionality in a RF distribution system |
US5668562A (en) | 1996-04-19 | 1997-09-16 | Lgc Wireless, Inc. | Measurement-based method of optimizing the placement of antennas in a RF distribution system |
US6157810A (en) | 1996-04-19 | 2000-12-05 | Lgc Wireless, Inc | Distribution of radio-frequency signals through low bandwidth infrastructures |
US5930682A (en) | 1996-04-19 | 1999-07-27 | Lgc Wireless, Inc. | Centralized channel selection in a distributed RF antenna system |
US6014546A (en) | 1996-04-19 | 2000-01-11 | Lgc Wireless, Inc. | Method and system providing RF distribution for fixed wireless local loop service |
US5708681A (en) | 1996-04-23 | 1998-01-13 | Bell Communications Research, Inc. | Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver |
US5987303A (en) | 1996-05-29 | 1999-11-16 | At&T Corp. | Wireless transmission using fiber link |
US5867485A (en) | 1996-06-14 | 1999-02-02 | Bellsouth Corporation | Low power microcellular wireless drop interactive network |
US5703602A (en) | 1996-06-14 | 1997-12-30 | Metricom, Inc. | Portable RF antenna |
US6580905B1 (en) | 1996-07-02 | 2003-06-17 | Ericsson Inc. | System and method for controlling the level of signals output to transmission media in a distributed antenna network |
US5805983A (en) | 1996-07-18 | 1998-09-08 | Ericsson Inc. | System and method for equalizing the delay time for transmission paths in a distributed antenna network |
US6128470A (en) | 1996-07-18 | 2000-10-03 | Ericsson Inc. | System and method for reducing cumulative noise in a distributed antenna network |
WO1998004057A1 (en) | 1996-07-19 | 1998-01-29 | British Telecommunications Public Limited Company | Telecommunications system simultaneously receiving and modulating an optical signal |
US6480702B1 (en) | 1996-08-01 | 2002-11-12 | Transcept, Inc. | Apparatus and method for distributing wireless communications signals to remote cellular antennas |
US6006105A (en) | 1996-08-02 | 1999-12-21 | Lsi Logic Corporation | Multi-frequency multi-protocol wireless communication device |
US5873040A (en) | 1996-08-13 | 1999-02-16 | International Business Machines Corporation | Wireless 911 emergency location |
JPH1065568A (ja) | 1996-08-21 | 1998-03-06 | Oki Electric Ind Co Ltd | 無線装置 |
US6362737B1 (en) | 1998-06-02 | 2002-03-26 | Rf Code, Inc. | Object Identification system with adaptive transceivers and methods of operation |
US6223201B1 (en) | 1996-08-27 | 2001-04-24 | International Business Machines Corporation | Data processing system and method of task management within a self-managing application |
US5825651A (en) | 1996-09-03 | 1998-10-20 | Trilogy Development Group, Inc. | Method and apparatus for maintaining and configuring systems |
US6330244B1 (en) | 1996-09-05 | 2001-12-11 | Jerome Swartz | System for digital radio communication between a wireless lan and a PBX |
US5896568A (en) | 1996-09-06 | 1999-04-20 | Northern Telecom Limited | Wireless architecture having redistributed access functions |
US6249252B1 (en) | 1996-09-09 | 2001-06-19 | Tracbeam Llc | Wireless location using multiple location estimators |
US7903029B2 (en) | 1996-09-09 | 2011-03-08 | Tracbeam Llc | Wireless location routing applications and architecture therefor |
US6236365B1 (en) | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
US7714778B2 (en) | 1997-08-20 | 2010-05-11 | Tracbeam Llc | Wireless location gateway and applications therefor |
US7764231B1 (en) | 1996-09-09 | 2010-07-27 | Tracbeam Llc | Wireless location using multiple mobile station location techniques |
US5862460A (en) | 1996-09-13 | 1999-01-19 | Motorola, Inc. | Power control circuit for a radio frequency transmitter |
US6016426A (en) | 1996-10-10 | 2000-01-18 | Mvs, Incorporated | Method and system for cellular communication with centralized control and signal processing |
US6353406B1 (en) | 1996-10-17 | 2002-03-05 | R.F. Technologies, Inc. | Dual mode tracking system |
AU5426298A (en) | 1996-10-17 | 1998-05-11 | Pinpoint Corporation | Article tracking system |
US6812824B1 (en) | 1996-10-17 | 2004-11-02 | Rf Technologies, Inc. | Method and apparatus combining a tracking system and a wireless communication system |
US5946622A (en) | 1996-11-19 | 1999-08-31 | Ericsson Inc. | Method and apparatus for providing cellular telephone service to a macro-cell and pico-cell within a building using shared equipment |
KR100221287B1 (ko) | 1996-11-21 | 1999-09-15 | 서평원 | 시디엠에이 방식 이동통신 기지국 시스템의 음영 지역용 분산식 송수신 안테나 장치 |
US5936754A (en) | 1996-12-02 | 1999-08-10 | At&T Corp. | Transmission of CDMA signals over an analog optical link |
IL119832A (en) | 1996-12-15 | 2001-01-11 | Foxcom Wireless Ltd | Wireless communications systems employing optical fibers |
US6212397B1 (en) | 1996-12-23 | 2001-04-03 | Texas Instruments Incorporated | Method and system for controlling remote multipoint stations |
IL119972A (en) | 1997-01-07 | 2001-01-28 | Foxcom Ltd | Satellite distributed television |
US5913003A (en) | 1997-01-10 | 1999-06-15 | Lucent Technologies Inc. | Composite fiber optic distribution cable |
US6222503B1 (en) | 1997-01-10 | 2001-04-24 | William Gietema | System and method of integrating and concealing antennas, antenna subsystems and communications subsystems |
US6049593A (en) | 1997-01-17 | 2000-04-11 | Acampora; Anthony | Hybrid universal broadband telecommunications using small radio cells interconnected by free-space optical links |
US5883882A (en) | 1997-01-30 | 1999-03-16 | Lgc Wireless | Fault detection in a frequency duplexed system |
US6023625A (en) | 1997-02-18 | 2000-02-08 | Ericsson Inc. | System and method for reducing multicast interference in a distributed antenna network |
US6112086A (en) | 1997-02-25 | 2000-08-29 | Adc Telecommunications, Inc. | Scanning RSSI receiver system using inverse fast fourier transforms for a cellular communications system with centralized base stations and distributed antenna units |
US5914671A (en) | 1997-02-27 | 1999-06-22 | Micron Communications, Inc. | System and method for locating individuals and equipment, airline reservation system, communication system |
GB2323252A (en) | 1997-03-11 | 1998-09-16 | Nicholas John Nelson | Radio frequency tagging of stock items |
US6885846B1 (en) | 1997-03-31 | 2005-04-26 | Texas Instruments Incorporated | Low power wireless network |
US6236863B1 (en) | 1997-03-31 | 2001-05-22 | Oki Telecom, Inc. | Comprehensive transmitter power control system for radio telephones |
CA2242707C (en) | 1997-07-21 | 2002-09-10 | Pirelli Cable Corporation | Combination optical fiber cable |
DE19733857C1 (de) | 1997-08-05 | 1999-02-18 | Nokia Mobile Phones Ltd | Zellulares Telekommunikationssystem |
KR100244979B1 (ko) | 1997-08-14 | 2000-02-15 | 서정욱 | 부호분할다중접속 방식의 개인휴대통신용 마이크로셀룰라 이동통신 시스템 |
US6037898A (en) | 1997-10-10 | 2000-03-14 | Arraycomm, Inc. | Method and apparatus for calibrating radio frequency base stations using antenna arrays |
US20020051434A1 (en) | 1997-10-23 | 2002-05-02 | Ozluturk Fatih M. | Method for using rapid acquisition spreading codes for spread-spectrum communications |
US6118767A (en) | 1997-11-19 | 2000-09-12 | Metawave Communications Corporation | Interference control for CDMA networks using a plurality of narrow antenna beams and an estimation of the number of users/remote signals present |
JP3812787B2 (ja) | 1997-11-20 | 2006-08-23 | 株式会社日立国際電気 | 光変換中継増幅システム |
JPH11155165A (ja) | 1997-11-21 | 1999-06-08 | Toshiba Corp | 移動通信システム、基地局装置および制御局装置 |
JP3737896B2 (ja) | 1997-11-28 | 2006-01-25 | 株式会社日立国際電気 | 中継システム |
JP2005073284A (ja) * | 1997-11-28 | 2005-03-17 | Hitachi Kokusai Electric Inc | 中継システム |
US6088381A (en) | 1997-12-23 | 2000-07-11 | Ericsson Inc. | System for transporting frequency hopping signals |
US6374124B1 (en) | 1997-12-24 | 2002-04-16 | Transcept, Inc. | Dynamic reallocation of transceivers used to interconnect wireless telephones to a broadband network |
US6192216B1 (en) | 1997-12-24 | 2001-02-20 | Transcept, Inc. | Remotely controlled gain control of transceiver used to inter-connect wireless telephones to a broadband network |
KR100257184B1 (ko) | 1998-01-31 | 2000-05-15 | 정장호 | 서비스범위 확장을 위한 광중계 시스템 |
US6049312A (en) | 1998-02-11 | 2000-04-11 | Space Systems/Loral, Inc. | Antenna system with plural reflectors |
US6323980B1 (en) | 1998-03-05 | 2001-11-27 | Air Fiber, Inc. | Hybrid picocell communication system |
JP3348196B2 (ja) | 1998-03-06 | 2002-11-20 | 独立行政法人通信総合研究所 | 無線伝送システム |
US6122529A (en) | 1998-03-17 | 2000-09-19 | Transcept, Inc. | Simulcast with hierarchical cell structure overlay |
US6374078B1 (en) | 1998-04-17 | 2002-04-16 | Direct Wireless Corporation | Wireless communication system with multiple external communication links |
US6176837B1 (en) | 1998-04-17 | 2001-01-23 | Massachusetts Institute Of Technology | Motion tracking system |
JP2981880B2 (ja) | 1998-04-23 | 1999-11-22 | 郵政省通信総合研究所長 | マルチモードサービス無線通信システム |
JP2000022582A (ja) * | 1998-04-28 | 2000-01-21 | Rcs:Kk | 分散アンテナ装置 |
FR2779022B1 (fr) | 1998-05-20 | 2000-07-28 | Nortel Matra Cellular | Station de base de radiocommunication |
US6336042B1 (en) | 1998-06-05 | 2002-01-01 | Transcept, Inc. | Reverse link antenna diversity in a wireless telephony system |
US6504636B1 (en) | 1998-06-11 | 2003-01-07 | Kabushiki Kaisha Toshiba | Optical communication system |
US6268946B1 (en) | 1998-07-01 | 2001-07-31 | Radio Frequency Systems, Inc. | Apparatus for communicating diversity signals over a transmission medium |
US6307869B1 (en) | 1998-07-07 | 2001-10-23 | Lucent Technologies Inc. | System and method for phase recovery in a synchronous communication system |
US6452915B1 (en) | 1998-07-10 | 2002-09-17 | Malibu Networks, Inc. | IP-flow classification in a wireless point to multi-point (PTMP) transmission system |
JP3180769B2 (ja) | 1998-07-17 | 2001-06-25 | 日本電気株式会社 | 受信電力算出方法及び移動局 |
US5959531A (en) | 1998-07-24 | 1999-09-28 | Checkpoint Systems, Inc. | Optical interface between receiver and tag response signal analyzer in RFID system for detecting low power resonant tags |
US6128477A (en) | 1998-08-07 | 2000-10-03 | Ericsson Inc. | System for improving the dynamic range of transmitter power measurement in a cellular telephone |
SG106669A1 (en) | 1998-08-14 | 2004-10-29 | 3M Innovative Properties Co | Applications for radio frequency identification systems |
US6657535B1 (en) | 1998-08-31 | 2003-12-02 | Hawkeye Global, Inc. | System for signaling a device at a remote location |
JP2000151489A (ja) | 1998-09-11 | 2000-05-30 | Kokusai Electric Co Ltd | 中継増幅装置 |
JP3801790B2 (ja) | 1998-09-28 | 2006-07-26 | Necディスプレイソリューションズ株式会社 | 画像表示装置 |
JP4063419B2 (ja) | 1998-10-06 | 2008-03-19 | 松下電器産業株式会社 | 光伝送システム |
US6370203B1 (en) | 1998-11-04 | 2002-04-09 | Ericsson Inc. | Power control for wireless communications system |
JP4095185B2 (ja) | 1998-11-06 | 2008-06-04 | 株式会社東芝 | 無線通信基地局装置 |
KR100319298B1 (ko) | 1998-11-23 | 2002-04-22 | 윤종용 | Adss케이블및그제작방법 |
US8135413B2 (en) | 1998-11-24 | 2012-03-13 | Tracbeam Llc | Platform and applications for wireless location and other complex services |
US20040198386A1 (en) | 2002-01-16 | 2004-10-07 | Dupray Dennis J. | Applications for a wireless location gateway |
US20030146871A1 (en) | 1998-11-24 | 2003-08-07 | Tracbeam Llc | Wireless location using signal direction and time difference of arrival |
US6615074B2 (en) | 1998-12-22 | 2003-09-02 | University Of Pittsburgh Of The Commonwealth System Of Higher Education | Apparatus for energizing a remote station and related method |
BR9916512A (pt) | 1998-12-24 | 2001-09-04 | Ericsson Telefon Ab L M | Aparelho em um receptor em um sistema de comunicação, processo de processamento de sinais recebidos na estação base em um sistema de rádio, telefone celular, e, sistema de comunicação |
US6405018B1 (en) | 1999-01-11 | 2002-06-11 | Metawave Communications Corporation | Indoor distributed microcell |
US20010036199A1 (en) | 2000-03-30 | 2001-11-01 | Terry John B. | Architecture and method for automatic distributed gain control for modem communications over passive multipoint networks |
GB2345811B (en) | 1999-01-16 | 2001-04-04 | Marconi Caswell Ltd | Radio frequency receiver circuit |
US6336021B1 (en) | 1999-03-26 | 2002-01-01 | Kabushiki Kaisha Toshiba | Electrophotographic apparatus including a plurality of developing agent image forming units and a method of forming an electrophotographic image |
GB2348572A (en) | 1999-03-31 | 2000-10-04 | Adaptive Broadband Ltd | Controlling transmit power of nodes |
US6240274B1 (en) | 1999-04-21 | 2001-05-29 | Hrl Laboratories, Llc | High-speed broadband wireless communication system architecture |
US6415132B1 (en) | 1999-04-21 | 2002-07-02 | Transcept, Inc. | Blossom/wilt for dynamic reallocation in a distributed fiber system |
US6812905B2 (en) | 1999-04-26 | 2004-11-02 | Andrew Corporation | Integrated active antenna for multi-carrier applications |
US6583763B2 (en) | 1999-04-26 | 2003-06-24 | Andrew Corporation | Antenna structure and installation |
US6400318B1 (en) | 1999-04-30 | 2002-06-04 | Kabushiki Kaisha Toshiba | Adaptive array antenna |
US6194968B1 (en) | 1999-05-10 | 2001-02-27 | Tyco Electronics Logistics Ag | Temperature and process compensating circuit and controller for an RF power amplifier |
KR100441147B1 (ko) | 1999-05-14 | 2004-07-19 | 가부시키가이샤 히다치 고쿠사이 덴키 | 이동체 통신 시스템 |
GB9911698D0 (en) | 1999-05-20 | 1999-07-21 | Univ Southampton | Developing holey fibers for evanescent field devices |
KR20010113973A (ko) | 1999-05-20 | 2001-12-28 | 추후제출 | 향상된 역경로 자동 이득 제어 |
US6317599B1 (en) | 1999-05-26 | 2001-11-13 | Wireless Valley Communications, Inc. | Method and system for automated optimization of antenna positioning in 3-D |
ATE428231T1 (de) | 1999-05-26 | 2009-04-15 | Telefonica Sa | Modul zum ubertragen von funkdaten uber optische faser |
JP3734982B2 (ja) | 1999-05-27 | 2006-01-11 | 株式会社エヌ・ティ・ティ・ドコモ | 無線装置 |
US6556551B1 (en) | 1999-05-27 | 2003-04-29 | Lgc Wireless, Inc. | Multi-frequency pilot beacon for CDMA systems |
US6421327B1 (en) | 1999-06-28 | 2002-07-16 | Qualcomm Incorporated | Method and apparatus for controlling transmission energy in a communication system employing orthogonal transmit diversity |
JP4172120B2 (ja) | 1999-06-29 | 2008-10-29 | ソニー株式会社 | 通信装置及び通信方法、通信端末装置 |
US6438301B1 (en) | 1999-07-07 | 2002-08-20 | Trw Inc. | Low-torque electro-optical laminated cable and cablewrap |
US6587514B1 (en) | 1999-07-13 | 2003-07-01 | Pmc-Sierra, Inc. | Digital predistortion methods for wideband amplifiers |
US6934511B1 (en) | 1999-07-20 | 2005-08-23 | Andrew Corporation | Integrated repeater |
US7005985B1 (en) | 1999-07-20 | 2006-02-28 | Axcess, Inc. | Radio frequency identification system and method |
US7577398B2 (en) | 2000-01-14 | 2009-08-18 | Andrew Llc | Repeaters for wireless communication systems |
JP3392077B2 (ja) | 1999-08-05 | 2003-03-31 | シャープ株式会社 | 無線通信機能付きケーブルモデム |
US6714121B1 (en) | 1999-08-09 | 2004-03-30 | Micron Technology, Inc. | RFID material tracking method and apparatus |
KR100376298B1 (ko) | 1999-09-13 | 2003-03-17 | 가부시끼가이샤 도시바 | 무선통신시스템 |
US6577794B1 (en) | 1999-09-27 | 2003-06-10 | Robert M. Currie | Compound optical and electrical conductors, and connectors therefor |
US6654616B1 (en) | 1999-09-27 | 2003-11-25 | Verizon Laboratories Inc. | Wireless area network having flexible backhauls for creating backhaul network |
US6658269B1 (en) | 1999-10-01 | 2003-12-02 | Raytheon Company | Wireless communications system |
US6823174B1 (en) | 1999-10-11 | 2004-11-23 | Ditrans Ip, Inc. | Digital modular adaptive antenna and method |
US6519449B1 (en) | 1999-10-29 | 2003-02-11 | Nortel Networks Limited | Method and apparatus for a signal power control in a wireless communication system |
US6784802B1 (en) | 1999-11-04 | 2004-08-31 | Nordx/Cdt, Inc. | Real time monitoring of cable patch panel |
US7042420B2 (en) | 1999-11-18 | 2006-05-09 | Automotive Systems Laboratory, Inc. | Multi-beam antenna |
US6640103B1 (en) | 1999-11-23 | 2003-10-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for cellular system border analysis |
US6634811B1 (en) | 1999-11-30 | 2003-10-21 | Jds Corporation | High performance optical link |
JP2001177864A (ja) | 1999-12-15 | 2001-06-29 | Toshiba Corp | 無線通信システム、無線通信方法、および無線制御局 |
US6512478B1 (en) | 1999-12-22 | 2003-01-28 | Rockwell Technologies, Llc | Location position system for relay assisted tracking |
US6236789B1 (en) | 1999-12-22 | 2001-05-22 | Pirelli Cables And Systems Llc | Composite cable for access networks |
JP3594862B2 (ja) | 1999-12-28 | 2004-12-02 | 株式会社エヌ・ティ・ティ・ドコモ | 無線基地局システム、統括局及び該統括局における信号処理方法 |
US6466718B1 (en) | 1999-12-29 | 2002-10-15 | Emc Corporation | Method and apparatus for transmitting fiber-channel and non-fiber channel signals through common cable |
US7142503B1 (en) | 2000-02-11 | 2006-11-28 | Nortel Networks Limited | Communication system architecture and operating methodology providing a virtual neighborhood network |
CN1107358C (zh) | 2000-02-24 | 2003-04-30 | 信息产业部电信科学技术研究院 | 分布式智能天线系统 |
DE60139116D1 (de) | 2000-03-27 | 2009-08-13 | Opencell Corp | System zum Verteilen von Multiprotokoll-RF-Signalen |
GB2361385A (en) | 2000-04-12 | 2001-10-17 | Queen Mary & Westfield College | Intelligent control of radio resorces in a wireless network |
US7142619B2 (en) | 2000-04-26 | 2006-11-28 | Symmetricom, Inc. | Long subscriber loops using automatic gain control mid-span extender unit |
WO2001084865A1 (en) | 2000-04-27 | 2001-11-08 | Lgc Wireless, Inc. | Adaptive capacity management in a centralized basestation architecture |
WO2001084760A1 (en) | 2000-04-28 | 2001-11-08 | Lgc Wireless, Inc. | A cellular communications system with centralized capacity resources using dwdm fiber optic backbone |
US6353600B1 (en) | 2000-04-29 | 2002-03-05 | Lgc Wireless, Inc. | Dynamic sectorization in a CDMA cellular system employing centralized base-station architecture |
US6519395B1 (en) | 2000-05-04 | 2003-02-11 | Northrop Grumman Corporation | Fiber optic array harness |
WO2001086982A1 (fr) | 2000-05-10 | 2001-11-15 | Ntt Docomo, Inc. | Systeme de reseau de stations de base radio, station de controle, procede de commutation de station de base, procede de traitement de signal et procede de commande de transfert |
US6405058B2 (en) | 2000-05-16 | 2002-06-11 | Idigi Labs, Llc | Wireless high-speed internet access system allowing multiple radio base stations in close confinement |
US10641861B2 (en) | 2000-06-02 | 2020-05-05 | Dennis J. Dupray | Services and applications for a communications network |
US6687437B1 (en) | 2000-06-05 | 2004-02-03 | Essex Group, Inc. | Hybrid data communications cable |
US6788666B1 (en) | 2000-06-13 | 2004-09-07 | Sprint Communications Company, L.P. | Hybrid fiber wireless communication system |
US7248841B2 (en) | 2000-06-13 | 2007-07-24 | Agee Brian G | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks |
US6535720B1 (en) | 2000-06-28 | 2003-03-18 | Trw Inc. | Digital power control system for a multi-carrier transmitter |
KR100338623B1 (ko) | 2000-07-10 | 2002-05-30 | 윤종용 | 디지털 광 링크를 이용한 이동통신망 시스템 |
JP2002033629A (ja) | 2000-07-14 | 2002-01-31 | Nec Corp | 利得可変増幅回路、およびそれを備えた端末装置 |
US7020488B1 (en) | 2000-07-19 | 2006-03-28 | Embedded Systems Products Inc. | Communications unit, system and methods for providing multiple access to a wireless transceiver |
US6704545B1 (en) | 2000-07-19 | 2004-03-09 | Adc Telecommunications, Inc. | Point-to-multipoint digital radio frequency transport |
US6724308B2 (en) | 2000-08-11 | 2004-04-20 | Escort Memory Systems | RFID tracking method and system |
US6968107B2 (en) | 2000-08-18 | 2005-11-22 | University Of Southampton | Holey optical fibres |
US6895185B1 (en) * | 2000-08-24 | 2005-05-17 | Korea Advanced Institute Of Science And Technology | Multi-purpose optical fiber access network |
US6606430B2 (en) | 2000-09-05 | 2003-08-12 | Optical Zonu Corporation | Passive optical network with analog distribution |
US6652158B2 (en) | 2000-09-05 | 2003-11-25 | Optical Zonu Corporation | Optical networking unit employing optimized optical packaging |
US6924997B2 (en) | 2000-09-25 | 2005-08-02 | Symetrix Corporation | Ferroelectric memory and method of operating same |
SE0003610L (sv) | 2000-10-06 | 2002-04-07 | Telia Ab | Anordning i mobilt telesystem |
US6883710B2 (en) | 2000-10-11 | 2005-04-26 | Amerasia International Technology, Inc. | Article tracking system and method |
US6758913B1 (en) | 2000-10-12 | 2004-07-06 | General Electric Company | Method of cleaning pressurized containers containing anhydrous ammonia |
DE60127791T2 (de) | 2000-10-25 | 2007-12-27 | Ntt Docomo Inc. | Übertragungssystem mit an optischen Fasern gekoppelten Funkeinheiten |
US20020114038A1 (en) | 2000-11-09 | 2002-08-22 | Shlomi Arnon | Optical communication system |
GB2370170B (en) | 2000-12-15 | 2003-01-29 | Ntl Group Ltd | Signal transmission systems |
JP3576099B2 (ja) | 2000-12-22 | 2004-10-13 | 株式会社東芝 | スマートアンテナを用いた受信装置、スマートアンテナを用いた受信方法及びビーム形成回路 |
KR100352852B1 (ko) | 2000-12-22 | 2002-09-16 | 엘지전자 주식회사 | 광기지국용 수신신호 전송장치 |
US6836673B1 (en) | 2000-12-22 | 2004-12-28 | Arraycomm, Inc. | Mitigating ghost signal interference in adaptive array systems |
US6879290B1 (en) | 2000-12-26 | 2005-04-12 | France Telecom | Compact printed “patch” antenna |
US20020123365A1 (en) | 2000-12-31 | 2002-09-05 | Thorson Walter R. | Scalable base station architecture |
US20020092347A1 (en) | 2001-01-17 | 2002-07-18 | Niekerk Jan Van | Radio frequency identification tag tire inflation pressure monitoring and location determining method and apparatus |
US6801767B1 (en) | 2001-01-26 | 2004-10-05 | Lgc Wireless, Inc. | Method and system for distributing multiband wireless communications signals |
US6448558B1 (en) | 2001-01-31 | 2002-09-10 | The United States Of America As Represented By The Secretary Of The Navy | Active infrared signature detection device |
US6598009B2 (en) | 2001-02-01 | 2003-07-22 | Chun Yang | Method and device for obtaining attitude under interference by a GSP receiver equipped with an array antenna |
WO2002063861A1 (en) | 2001-02-06 | 2002-08-15 | 2Wire, Inc. | Loop extender with communications, control, and diagnostics |
DE20102892U1 (de) | 2001-02-17 | 2001-05-03 | Fischer Wolfgang | Telefonhalterung für ein Handy in einem Fahrzeug |
JP2002261668A (ja) | 2001-03-01 | 2002-09-13 | Hitachi Kokusai Electric Inc | 通信機 |
JP2002264617A (ja) | 2001-03-07 | 2002-09-18 | Hanex Co Ltd | タイヤへのrfidタグの設置構造 |
NL1017619C2 (nl) | 2001-03-16 | 2002-10-07 | Koninkl Kpn Nv | Methode voor het in een gebouw aanbrengen van een breedband infrastructuur door middel van optische vezels. |
US6771933B1 (en) | 2001-03-26 | 2004-08-03 | Lgc Wireless, Inc. | Wireless deployment of bluetooth access points using a distributed antenna architecture |
US6535330B1 (en) | 2001-03-31 | 2003-03-18 | Corning Incorporated | Dynamic controller for a multi-channel optical amplifier |
DE60126348T2 (de) | 2001-04-06 | 2007-11-08 | Nokia Corp. | Positionsbestimmungsverfahren und -system |
US6882311B2 (en) | 2001-04-12 | 2005-04-19 | Malibu Research Associates | Digital beamforming radar system |
EP1251577B1 (en) | 2001-04-19 | 2007-04-25 | Interuniversitair Microelektronica Centrum Vzw | Fabrication of integrated tunable/switchable passive microwave and millimeter wave modules |
US6842433B2 (en) | 2001-04-24 | 2005-01-11 | Wideray Corporation | System and method for communicating information from a computerized distributor to portable computing devices |
US8090379B2 (en) | 2001-05-02 | 2012-01-03 | Trex Enterprises Corp | Cellular systems with distributed antennas |
US6662024B2 (en) | 2001-05-16 | 2003-12-09 | Qualcomm Incorporated | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system |
US8082096B2 (en) | 2001-05-22 | 2011-12-20 | Tracbeam Llc | Wireless location routing applications and architecture therefor |
JP2002353813A (ja) | 2001-05-23 | 2002-12-06 | Mitsubishi Electric Corp | ディジタル通信装置及びこれを用いた配電線搬送用の通信装置 |
KR100402409B1 (ko) | 2001-05-26 | 2003-10-30 | (주)오피트정보통신 | 원거리 전송이 가능한 디지털 비디오 신호 인터페이스 모듈 |
US20020181668A1 (en) | 2001-06-01 | 2002-12-05 | Lee Masoian | Method and system for radio frequency/fiber optic antenna interface |
EP1400141B1 (en) | 2001-06-08 | 2010-03-10 | Nextg Networks | Network and method for connecting antennas to base stations in a wireless communication network using space diversity |
US6826163B2 (en) | 2001-06-08 | 2004-11-30 | Nextg Networks | Method and apparatus for multiplexing in a wireless communication infrastructure |
US6865390B2 (en) | 2001-06-25 | 2005-03-08 | Lucent Technologies Inc. | Cellular communications system featuring a central radio pool/traffic router |
CA2383717A1 (en) | 2001-06-28 | 2002-12-28 | Telecommunications Research Laboratories | An optical fiber based on wireless scheme for wideband multimedia access |
US7409159B2 (en) | 2001-06-29 | 2008-08-05 | Hrl Laboratories, Llc | Wireless wavelength division multiplexed system |
US6580402B2 (en) | 2001-07-26 | 2003-06-17 | The Boeing Company | Antenna integrated ceramic chip carrier for a phased array antenna |
US6710366B1 (en) | 2001-08-02 | 2004-03-23 | Ultradots, Inc. | Nanocomposite materials with engineered properties |
US7190748B2 (en) | 2001-08-17 | 2007-03-13 | Dsp Group Inc. | Digital front-end for wireless communication system |
JP2003078462A (ja) | 2001-08-31 | 2003-03-14 | Sanyo Electric Co Ltd | 無線装置、その信号受信方法、そのフィルタ係数測定方法、およびそのフィルタ係数測定プログラム |
US7082320B2 (en) | 2001-09-04 | 2006-07-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Integration of wireless LAN and cellular distributed antenna |
US20030045284A1 (en) | 2001-09-05 | 2003-03-06 | Copley Richard T. | Wireless communication system, apparatus and method for providing communication service using an additional frequency band through an in-building communication infrastructure |
SE523065C2 (sv) | 2001-09-07 | 2004-03-23 | Telia Ab | Ett gränssnitt och system för att hantera digitala och analogaradiofrekvenssignaler i ett lokalt nätverk |
GB0122163D0 (en) | 2001-09-13 | 2001-10-31 | Tagtec Ltd | Wireless communication system |
JP3797182B2 (ja) * | 2001-10-03 | 2006-07-12 | 日本電信電話株式会社 | 有線無線統合型終端装置及び有線無線統合型ネットワーク |
US7228072B2 (en) | 2001-10-16 | 2007-06-05 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for integrating a fiber optic fixed access network and a fiber optic radio access network |
JP4043761B2 (ja) | 2001-11-08 | 2008-02-06 | 古河電気工業株式会社 | 標識用長尺体及び管路情報の検知方法 |
ES2401082T3 (es) | 2001-11-19 | 2013-04-16 | Prysmian Cables & Systems Limited | Cables de derivación de fibra óptica |
CA2467783A1 (en) | 2001-11-20 | 2003-05-30 | Nicholas D. Hutchins | Facilities management system |
US6771862B2 (en) | 2001-11-27 | 2004-08-03 | Intel Corporation | Signaling medium and apparatus |
US6986021B2 (en) | 2001-11-30 | 2006-01-10 | Quick Silver Technology, Inc. | Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements |
SE523400C2 (sv) | 2001-11-30 | 2004-04-13 | Ericsson Telefon Ab L M | Cellulärt radiokommunikationssystem som utnyttjar trådlösa optiska länkar samt förfarande för drift av systemet |
US6670930B2 (en) | 2001-12-05 | 2003-12-30 | The Boeing Company | Antenna-integrated printed wiring board assembly for a phased array antenna system |
JP3857580B2 (ja) | 2001-12-06 | 2006-12-13 | 株式会社ジャパンリーコム | 光ケーブル接続切換用クロージャ |
US6970652B2 (en) | 2001-12-07 | 2005-11-29 | Oplink Communications, Inc. | Auto-setting and optimization of EAM with optical line systems |
SE0104417D0 (sv) | 2001-12-21 | 2001-12-21 | Ericsson Telefon Ab L M | Improvements in, or relating to, mobile localization in GSM networks |
JP2003198464A (ja) | 2001-12-28 | 2003-07-11 | Mitsubishi Electric Corp | 光送受信器 |
JP2005519491A (ja) | 2002-01-09 | 2005-06-30 | ミードウエストベココーポレーション | 複数のrfアンテナを使用するインテリジェントステーションならびにこれを組み込んだ在庫制御システムおよび在庫制御方法 |
US20030141962A1 (en) | 2002-01-25 | 2003-07-31 | Bernard Barink | RFID systems - antenna system and software method to spatially locate transponders |
US20030157943A1 (en) | 2002-01-29 | 2003-08-21 | John Sabat | Method and apparatus for auxiliary pilot signal for mobile phone location |
DE10204317A1 (de) | 2002-02-01 | 2003-08-14 | Atmel Germany Gmbh | Verfahren zur Übertragung von Daten |
EP1488474A1 (en) | 2002-02-22 | 2004-12-22 | Arizona Board of Regents | Integration of filters using on-chip transformers for rf and wireless applications |
US7184728B2 (en) | 2002-02-25 | 2007-02-27 | Adc Telecommunications, Inc. | Distributed automatic gain control system |
JP2003324393A (ja) | 2002-02-26 | 2003-11-14 | Matsushita Electric Ind Co Ltd | 双方向光伝送システム並びにそれに用いられる親局及び子局 |
US20030165287A1 (en) | 2002-02-27 | 2003-09-04 | Krill Jerry A. | System and method for distribution of information using wideband wireless networks |
US7039399B2 (en) | 2002-03-11 | 2006-05-02 | Adc Telecommunications, Inc. | Distribution of wireless telephony and data signals in a substantially closed environment |
GB2386757A (en) | 2002-03-16 | 2003-09-24 | Qinetiq Ltd | Signal processing |
US7084768B2 (en) | 2002-03-21 | 2006-08-01 | Rf Saw Components, Inc. | Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof |
US6876945B2 (en) | 2002-03-25 | 2005-04-05 | Nicholas Jon Emord | Seamless sensory system |
US6920330B2 (en) | 2002-03-26 | 2005-07-19 | Sun Microsystems, Inc. | Apparatus and method for the use of position information in wireless applications |
US7015826B1 (en) | 2002-04-02 | 2006-03-21 | Digital Angel Corporation | Method and apparatus for sensing and transmitting a body characteristic of a host |
US7035671B2 (en) | 2002-04-08 | 2006-04-25 | Adc Telecommunications, Inc. | Method and apparatus for intelligent noise reduction in a distributed communication system |
ES2198206B2 (es) | 2002-04-12 | 2004-09-16 | Telefonica, S.A. | Sistema de conexion mediante fibra optica utilizando tecnicas hibridas dwdm/scm entre estaciones base y antenas remotas en un sistema de radiocomunicaciones, asi como metodo de acceso. |
TWI259011B (en) | 2002-04-12 | 2006-07-21 | Interdigital Tech Corp | Access burst detector correlator pool |
US7020396B2 (en) * | 2002-04-24 | 2006-03-28 | Hrl Laboratories, Llc | Opto-electronic ultra-wideband signal waveform generator and radiator |
KR100745749B1 (ko) | 2002-04-25 | 2007-08-02 | 삼성전자주식회사 | 광섬유-라디오 혼합 양방향 통신 장치 및 방법 |
US6847912B2 (en) | 2002-05-07 | 2005-01-25 | Marconi Intellectual Property (Us) Inc. | RFID temperature device and method |
US7069483B2 (en) | 2002-05-13 | 2006-06-27 | Kiyon, Inc. | System and method for identifying nodes in a wireless mesh network |
JP2003332817A (ja) | 2002-05-14 | 2003-11-21 | Alps Electric Co Ltd | アンテナシステム |
CA2387106A1 (en) | 2002-05-21 | 2003-11-21 | Information Mediary Corporation | Method for measuring temperature using a remote, passive, calibrated rf/rfid tag including a method for calibration |
US7263293B2 (en) | 2002-06-10 | 2007-08-28 | Andrew Corporation | Indoor wireless voice and data distribution system |
US6873823B2 (en) | 2002-06-20 | 2005-03-29 | Dekolink Wireless Ltd. | Repeater with digital channelizer |
US7460831B2 (en) | 2002-06-20 | 2008-12-02 | Dekolink Wireless Ltd. | System and method for excluding narrow band noise from a communication channel |
JP2004032412A (ja) | 2002-06-26 | 2004-01-29 | Oki Electric Ind Co Ltd | 光伝送システム |
US6933849B2 (en) | 2002-07-09 | 2005-08-23 | Fred Sawyer | Method and apparatus for tracking objects and people |
US20040017785A1 (en) | 2002-07-16 | 2004-01-29 | Zelst Allert Van | System for transporting multiple radio frequency signals of a multiple input, multiple output wireless communication system to/from a central processing base station |
US6763226B1 (en) | 2002-07-31 | 2004-07-13 | Computer Science Central, Inc. | Multifunctional world wide walkie talkie, a tri-frequency cellular-satellite wireless instant messenger computer and network for establishing global wireless volp quality of service (qos) communications, unified messaging, and video conferencing via the internet |
US7020446B2 (en) | 2002-07-31 | 2006-03-28 | Mitsubishi Electric Research Laboratories, Inc. | Multiple antennas at transmitters and receivers to achieving higher diversity and data rates in MIMO systems |
US6931813B2 (en) | 2002-08-02 | 2005-08-23 | Anthony D. Collie | Tornado and hurricane roof tie |
US7050017B2 (en) | 2002-08-14 | 2006-05-23 | King Patrick F | RFID tire belt antenna system and method |
EP1391897A1 (en) | 2002-08-21 | 2004-02-25 | Lucent Technologies Inc. | A cable, a two-part connector therefor, a unit comprising a part of the two-part connector, and a fixed station for mobile telecommunications |
AU2003268227A1 (en) | 2002-08-28 | 2004-03-19 | Zyray Wireless, Inc. | Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements |
US7835328B2 (en) | 2002-09-13 | 2010-11-16 | Strix Systems, Inc. | Network access points using multiple devices |
DE10244304B3 (de) | 2002-09-23 | 2004-03-18 | Data-Complex E.K. | Anordnung zur Überwachung von Patchfeldern an Verteilerpunkten in Datennetzwerken |
US7280848B2 (en) | 2002-09-30 | 2007-10-09 | Andrew Corporation | Active array antenna and system for beamforming |
JP4124710B2 (ja) | 2002-10-17 | 2008-07-23 | 松下電器産業株式会社 | 無線通信システム |
US6963289B2 (en) | 2002-10-18 | 2005-11-08 | Aeroscout, Ltd. | Wireless local area network (WLAN) channel radio-frequency identification (RFID) tag system and method therefor |
DE10249414A1 (de) | 2002-10-23 | 2004-05-13 | Siemens Ag | Elektronisch kommunikationsfähige Steckverbinderkomponente |
WO2004038549A2 (en) | 2002-10-24 | 2004-05-06 | Bbnt Solutions Llc | Spectrum-adaptive networking |
US6977502B1 (en) | 2002-11-04 | 2005-12-20 | Fonar Corporation | Configurable matrix receiver for MRI |
US7047028B2 (en) | 2002-11-15 | 2006-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Optical fiber coupling configurations for a main-remote radio base station and a hybrid radio base station |
JP2004172734A (ja) | 2002-11-18 | 2004-06-17 | Hitachi Kokusai Electric Inc | 無線中継システム |
US6885344B2 (en) | 2002-11-19 | 2005-04-26 | Farrokh Mohamadi | High-frequency antenna array |
AU2003295831A1 (en) | 2002-11-21 | 2004-06-18 | Bae Systems Information And Electronic Systems Integration, Inc. | Electro-optical cable for use in transmission of high voltage and optical signals under extremes of temperature |
US20040100930A1 (en) | 2002-11-25 | 2004-05-27 | Foxcom Wireless | WLAN distributed antenna system |
US7103377B2 (en) | 2002-12-03 | 2006-09-05 | Adc Telecommunications, Inc. | Small signal threshold and proportional gain distributed digital communications |
US7171244B2 (en) | 2002-12-03 | 2007-01-30 | Adc Telecommunications, Inc. | Communication system and method with gain control for signals from distributed antennas |
AU2003280179A1 (en) | 2002-12-04 | 2004-06-23 | Koninklijke Philips Electronics N.V. | Method and apparatus for true diversity reception with single antenna |
US6785558B1 (en) | 2002-12-06 | 2004-08-31 | Lgc Wireless, Inc. | System and method for distributing wireless communication signals over metropolitan telecommunication networks |
US7200391B2 (en) | 2002-12-06 | 2007-04-03 | Airvana, Inc. | Capacity enhancement schemes for forward and reverse links of distributed cellular base stations |
GB0229238D0 (en) | 2002-12-13 | 2003-01-22 | Univ London | An optical communication system |
US7024166B2 (en) | 2002-12-18 | 2006-04-04 | Qualcomm, Incorporated | Transmission diversity systems |
WO2004059934A1 (en) | 2002-12-24 | 2004-07-15 | Pirelli & C. S.P.A. | Radio base station receiver having digital filtering and reduced sampling frequency |
US7295119B2 (en) | 2003-01-22 | 2007-11-13 | Wireless Valley Communications, Inc. | System and method for indicating the presence or physical location of persons or devices in a site specific representation of a physical environment |
DE60320210T2 (de) | 2003-01-29 | 2009-05-20 | Siemens S.P.A. | Verbesserte VCSEL analoge optische Verbindung |
US6953919B2 (en) | 2003-01-30 | 2005-10-11 | Thermal Solutions, Inc. | RFID-controlled smart range and method of cooking and heating |
KR100532299B1 (ko) | 2003-01-30 | 2005-11-29 | 삼성전자주식회사 | 광선로로 접속되는 주 기지국과 원격 기지국간의 지연측정 및 보상장치 |
GB2399963B (en) | 2003-02-05 | 2006-04-05 | Zinwave Ltd | Multimode fibre optical communication system |
CN100362365C (zh) | 2003-02-07 | 2008-01-16 | 西门子公司 | 无线通信系统中的用户定位方法 |
US20040162115A1 (en) | 2003-02-14 | 2004-08-19 | Martin Smith | Wireless antennas, networks, methods, software, and services |
JP2004245963A (ja) | 2003-02-12 | 2004-09-02 | Fujikura Ltd | Rfidを備えた連長体及びその製造方法、並びに連長体を使用した光ファイバケーブル |
JP2004247090A (ja) | 2003-02-12 | 2004-09-02 | Fujikura Ltd | 連長体、その製造方法およびケーブル |
JP2004265624A (ja) | 2003-02-12 | 2004-09-24 | Fujikura Ltd | 連長体およびケーブル |
JP2004264901A (ja) | 2003-02-12 | 2004-09-24 | Fujikura Ltd | 連長体、その製造方法およびケーブル |
US6973243B2 (en) | 2003-02-13 | 2005-12-06 | Fujikura Ltd. | Cable |
US20040162116A1 (en) | 2003-02-14 | 2004-08-19 | Lucent Technologies Inc. | User programmable voice dialing for mobile handset |
US6915058B2 (en) | 2003-02-28 | 2005-07-05 | Corning Cable Systems Llc | Retractable optical fiber assembly |
ITMI20030402A1 (it) | 2003-03-05 | 2004-09-06 | Sirti Spa | Sistema di mappatura di una rete. |
US7962042B2 (en) | 2003-03-07 | 2011-06-14 | At&T Intellectual Property I, L.P. | Method and system for delivering broadband services over an ultrawide band radio system integrated with a passive optical network |
GB2399990B (en) | 2003-03-28 | 2005-10-26 | Motorola Inc | Method for determining a coverage area in a cell-based communication system |
GB2402300B (en) | 2003-03-31 | 2006-08-30 | British Telecomm | Network |
US7424228B1 (en) | 2003-03-31 | 2008-09-09 | Lockheed Martin Corporation | High dynamic range radio frequency to optical link |
JP2004317737A (ja) | 2003-04-15 | 2004-11-11 | Fujikura Ltd | Mtコネクタ及び前記mtコネクタで用いられるクランプ部材並びに前記mtコネクタを用いた光ファイバ管理方法 |
CN100366109C (zh) | 2003-04-22 | 2008-01-30 | 松下电器产业株式会社 | 其中接入点通过光复用系统连接到远程从基站的无线lan系统 |
JP2004325783A (ja) | 2003-04-24 | 2004-11-18 | Sony Corp | 光電複合コネクタ、それを用いた光電複合ケーブルおよびネットワーク機器 |
TWI226761B (en) | 2003-05-08 | 2005-01-11 | Ind Tech Res Inst | Dual band transceiver architecture for wireless application |
KR100547880B1 (ko) | 2003-05-20 | 2006-01-31 | 삼성전자주식회사 | 초광대역 통신방식을 이용한 실내 근거리 통신 네트워크시스템 |
JP2004349184A (ja) | 2003-05-26 | 2004-12-09 | Oki Electric Cable Co Ltd | Rf−idタグを使用したコネクタ付きケーブルとジャック部品の接続管理方式 |
US7054513B2 (en) | 2003-06-09 | 2006-05-30 | Virginia Tech Intellectual Properties, Inc. | Optical fiber with quantum dots |
US20040258105A1 (en) | 2003-06-19 | 2004-12-23 | Spathas Matthew T. | Building optical network |
JP2005018175A (ja) | 2003-06-24 | 2005-01-20 | Ritsumeikan | センサシステム |
DE60331480D1 (de) | 2003-06-27 | 2010-04-08 | Pirelli & C Spa | Verfahren zum konfigurieren eines kommunikationsnetzes, diesbezügliche netzwerkarchitektur und computerprogrammprodukt dafür |
US20040264683A1 (en) * | 2003-06-30 | 2004-12-30 | Stephen Bye | Hybrid access networks and methods |
KR100526550B1 (ko) | 2003-06-30 | 2005-11-03 | 삼성전자주식회사 | 광섬유를 기반으로 고속 광 무선 네트워크 시스템을구축하기 위한 액세스 포인트 |
WO2005002109A2 (en) | 2003-06-30 | 2005-01-06 | Dekolink Wireless Ltd. | Method for automatic control of rf output level of a repeater |
US7646777B2 (en) | 2003-07-07 | 2010-01-12 | At&T Intellectual Property I, L.P. | Communication environment switchover |
US8719053B2 (en) | 2003-07-17 | 2014-05-06 | Ventana Medical Systems, Inc. | Laboratory instrumentation information management and control network |
US7123928B2 (en) | 2003-07-21 | 2006-10-17 | Qualcomm Incorporated | Method and apparatus for creating and using a base station almanac for position determination |
US7460829B2 (en) | 2003-07-25 | 2008-12-02 | Panasonic Corporation | Wireless communication system |
KR100526552B1 (ko) | 2003-08-01 | 2005-11-03 | 삼성전자주식회사 | 서비스 영역의 확장을 위한 고속 개인용 무선 네트워크시스템 |
US20050058451A1 (en) | 2003-08-12 | 2005-03-17 | Barrett Ross | Enhanced fiber infrastructure for building interiors |
US6847856B1 (en) | 2003-08-29 | 2005-01-25 | Lucent Technologies Inc. | Method for determining juxtaposition of physical components with use of RFID tags |
US20050143091A1 (en) | 2003-09-02 | 2005-06-30 | Yair Shapira | Indoor location identification system |
US20050201761A1 (en) | 2003-09-05 | 2005-09-15 | Optical Zonu Corporation | SINGLE FIBER TRANSCEIVER with FAULT LOCALIZATION |
WO2005027392A2 (en) | 2003-09-11 | 2005-03-24 | The Kohl Group, Inc. | Flexible transport system including support for bilateral user access |
JP2005087135A (ja) | 2003-09-18 | 2005-04-07 | Hitachi Plant Eng & Constr Co Ltd | 食品の調理履歴計測方法および装置 |
US7026936B2 (en) | 2003-09-30 | 2006-04-11 | Id Solutions, Inc. | Distributed RF coupled system |
US7194275B2 (en) | 2003-10-02 | 2007-03-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Position determination of mobile stations |
US20050076982A1 (en) | 2003-10-09 | 2005-04-14 | Metcalf Arthur Richard | Post patch assembly for mounting devices in a tire interior |
US6919858B2 (en) | 2003-10-10 | 2005-07-19 | Broadcom, Corp. | RF antenna coupling structure |
US7835768B2 (en) | 2003-10-23 | 2010-11-16 | Telecom Itala S.p.A. | Antenna system and method for configuring a radiating pattern |
JP2005134125A (ja) | 2003-10-28 | 2005-05-26 | Mitsubishi Materials Corp | タイヤ圧力測定手段及び該手段を利用したrfidシステム |
AU2003278162A1 (en) | 2003-10-30 | 2005-06-08 | Pirelli And C. S.P.A. | Method and system for performing digital beam forming at intermediate frequency on the radiation pattern of an array antenna |
US7176797B2 (en) | 2003-10-31 | 2007-02-13 | Li-Cheng Richard Zai | Method and system of using active RFID tags to provide a reliable and secure RFID system |
EP1530316A1 (en) | 2003-11-10 | 2005-05-11 | Go Networks | Improving the performance of a wireless packet data communication system |
US6914570B2 (en) | 2003-11-10 | 2005-07-05 | Motorola, Inc. | Antenna system for a communication device |
US20050116821A1 (en) | 2003-12-01 | 2005-06-02 | Clifton Labs, Inc. | Optical asset tracking system |
JP2005175826A (ja) | 2003-12-10 | 2005-06-30 | Matsushita Electric Ind Co Ltd | 光ファイバ無線伝送システム、送信装置及び受信装置 |
FR2864256B1 (fr) | 2003-12-19 | 2006-03-03 | Cit Alcatel | Module de conducteurs, notamment de type fibre optique, a glissement relatif et etancheite controles, et procede de fabrication associe |
KR100617671B1 (ko) | 2003-12-22 | 2006-08-28 | 삼성전자주식회사 | 고속 무선 랜 시스템 |
GB0329908D0 (en) | 2003-12-23 | 2004-01-28 | Univ Cambridge Tech | Multiservice optical communication |
US20080026765A1 (en) | 2003-12-24 | 2008-01-31 | Hugo Charbonneau | Tool for Multi-Technology Distributed Antenna Systems |
US20050143077A1 (en) | 2003-12-24 | 2005-06-30 | Hugo Charbonneau | System and method for designing a communications network |
US6909399B1 (en) | 2003-12-31 | 2005-06-21 | Symbol Technologies, Inc. | Location system with calibration monitoring |
US8208449B2 (en) | 2004-01-05 | 2012-06-26 | Broadcom Corporation | Multi-mode WLAN/PAN MAC |
US20050148306A1 (en) | 2004-01-05 | 2005-07-07 | Hiddink Gerrit W. | Predictive method and apparatus for antenna selection in a wireless communication system |
US20050153712A1 (en) | 2004-01-08 | 2005-07-14 | Ken Osaka | Method and system for determining mobile unit location by aggregation of tagged signals from a distributed antenna system |
CA2689865C (en) | 2004-01-09 | 2013-08-27 | United Parcel Service Of America, Inc. | System, method and apparatus for collecting telematics and sensor information in a delivery vehicle |
US7929487B2 (en) | 2004-01-16 | 2011-04-19 | Alcatel-Lucent Usa Inc. | Method and apparatus for cellular communication over data networks |
US6974262B1 (en) | 2004-01-21 | 2005-12-13 | Robert Rickenbach | Communication cable |
AR043357A1 (es) | 2004-01-23 | 2005-07-27 | Salva Calcagno Eduardo Luis | Procedimiento de identificacion de personas mediante la conversion de huellas dactilares y codigos geneticos en codigos de barras y disposicion utilizada en dicho procedimiento |
US20050174236A1 (en) | 2004-01-29 | 2005-08-11 | Brookner George M. | RFID device tracking and information gathering |
FI20040220A0 (fi) | 2004-02-12 | 2004-02-12 | Nokia Corp | Etäradio-osien tunnistaminen viestintäjärjestelmässä |
US7423527B2 (en) | 2004-02-13 | 2008-09-09 | Blue Vector Systems | Radio frequency identification (RFID) network system and method |
US6965718B2 (en) | 2004-02-20 | 2005-11-15 | Hewlett-Packard Development Company, L.P. | Apparatus and method for supplying power over an optical link |
US7315735B2 (en) | 2004-02-24 | 2008-01-01 | P.G. Electronics Ltd. | System and method for emergency 911 location detection |
JP4256804B2 (ja) | 2004-03-08 | 2009-04-22 | 富士通株式会社 | マルチアンテナシステム |
US7466925B2 (en) | 2004-03-19 | 2008-12-16 | Emcore Corporation | Directly modulated laser optical transmission system |
US7170393B2 (en) | 2004-03-30 | 2007-01-30 | Lucent Technologies, Inc. | Method and apparatus for the automatic determination of network cable connections using RFID tags and an antenna grid |
US20050224585A1 (en) | 2004-04-02 | 2005-10-13 | Durrant Richard C E | Radio frequency identification of a connector by a patch panel or other similar structure |
US7599420B2 (en) | 2004-07-30 | 2009-10-06 | Rearden, Llc | System and method for distributed input distributed output wireless communications |
US7359647B1 (en) * | 2004-04-06 | 2008-04-15 | Nortel Networks, Ltd. | Method and apparatus for transmitting and receiving power over optical fiber |
US7469105B2 (en) | 2004-04-09 | 2008-12-23 | Nextg Networks, Inc. | Optical fiber communications method and system without a remote electrical power supply |
US7542452B2 (en) | 2004-04-09 | 2009-06-02 | Sharp Laboratories Of America, Inc. | Systems and methods for implementing an enhanced multi-channel direct link protocol between stations in a wireless LAN environment |
US7404520B2 (en) | 2004-04-28 | 2008-07-29 | Symbol Technologies, Inc. | System and method for providing location information in transaction processing |
GB0409855D0 (en) | 2004-05-01 | 2004-06-09 | Univ Bristol | A low cost wireless optical transceiver module |
IL161869A (en) | 2004-05-06 | 2014-05-28 | Serconet Ltd | A system and method for carrying a signal originating is wired using wires |
ES2530461T3 (es) | 2004-05-07 | 2015-03-03 | Tyco Fire & Security Gmbh | Método de asignación y deducción de la ubicación de artículos detectados por múltiples antenas RFID |
US7422152B2 (en) | 2004-05-13 | 2008-09-09 | Cisco Technology, Inc. | Methods and devices for providing scalable RFID networks |
US7324730B2 (en) | 2004-05-19 | 2008-01-29 | Schlumberger Technology Corporation | Optical fiber cables for wellbore applications |
US7197214B2 (en) | 2004-05-24 | 2007-03-27 | Corning Cable Systems Llc | Methods and apparatus for facilitating cable locating |
EP1617455B1 (en) | 2004-06-01 | 2007-08-01 | Matsushita Toshiba Picture Display Co., Ltd. | Color picture tube |
US7336961B1 (en) | 2004-06-04 | 2008-02-26 | Sprint Spectrum L.P. | Method and system for determining location of a mobile station within a distributed antenna system |
JP2006050564A (ja) * | 2004-06-11 | 2006-02-16 | Extreme Networks Inc | 統合有線及び無線lanアクセスウォールプレート |
US7496070B2 (en) | 2004-06-30 | 2009-02-24 | Symbol Technologies, Inc. | Reconfigureable arrays of wireless access points |
US20060014548A1 (en) | 2004-07-16 | 2006-01-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Determination of mobile terminal position |
KR100590486B1 (ko) | 2004-07-29 | 2006-06-19 | 에스케이 텔레콤주식회사 | Tdd 방식과 ofdm 변조 방식을 이용하는 이동통신망의 광중계기에서 전송 신호를 분리하는 스위칭타이밍 신호 생성 방법 및 시스템 |
US20080134194A1 (en) | 2004-08-13 | 2008-06-05 | Utstarcim Telecom Co., Ltd. | Method for Dynamic Resource Allocation in Centrailized Base Stations |
WO2006018592A1 (en) | 2004-08-20 | 2006-02-23 | Zinwave Limited | Multimode fibre optical communication system |
US7423535B2 (en) | 2004-08-26 | 2008-09-09 | Avante International Technology, Inc. | Object monitoring, locating, and tracking method employing RFID devices |
US7839289B2 (en) | 2004-08-26 | 2010-11-23 | Avante International Technology, Inc. | Object monitoring, locating, and tracking system and method employing RFID devices |
WO2006026891A1 (fr) | 2004-09-08 | 2006-03-16 | Utstarcom Telecom Co., Ltd. | Systeme de station de base centralisee a base de plate-forme d'architecture atca |
US7477597B2 (en) | 2004-09-08 | 2009-01-13 | Alcatel Lucent | Rural broadband hybrid satellite/terrestrial solution |
US20060066443A1 (en) | 2004-09-15 | 2006-03-30 | Tagsys Sa | Self-adjusting RF assembly |
KR20060025743A (ko) | 2004-09-17 | 2006-03-22 | 삼성전자주식회사 | 양방향 무선 통신을 위한 광 네트워크 |
US8503938B2 (en) | 2004-10-14 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes |
ATE476821T1 (de) | 2004-10-15 | 2010-08-15 | Pirelli & C Spa | Verfahren zur sicheren signalübertragung in einem telekommunikationsnetz insbesondere in einem lokalen netzwerk |
US7548695B2 (en) | 2004-10-19 | 2009-06-16 | Nextg Networks, Inc. | Wireless signal distribution system and method |
US8855489B2 (en) | 2004-10-25 | 2014-10-07 | Telecom Italia S.P.A. | Communications method, particularly for a mobile radio network |
US7706977B2 (en) | 2004-10-26 | 2010-04-27 | Honeywell International Inc. | Personal navigation device for use with portable device |
US7313415B2 (en) | 2004-11-01 | 2007-12-25 | Nextg Networks, Inc. | Communications system and method |
AU2005303660B2 (en) | 2004-11-15 | 2011-04-28 | Bae Systems Plc | Data communications system |
KR100617839B1 (ko) | 2004-11-16 | 2006-08-28 | 삼성전자주식회사 | 양방향 무선 통신을 위한 광 네트워크 |
KR101160566B1 (ko) | 2004-11-25 | 2012-06-28 | 텔레콤 이탈리아 소시에떼 퍼 아찌오니 | 이동 통신장비용 결합 ic 카드 및 무선 트랜시버 모듈 |
US7751374B2 (en) | 2005-01-18 | 2010-07-06 | Marvell World Trade Ltd. | WLAN TDM protocol |
WO2007084147A2 (en) | 2005-02-02 | 2007-07-26 | Raytheon Company | System for situational awareness |
US20060182449A1 (en) | 2005-02-16 | 2006-08-17 | John Iannelli | Optical transmitter with integrated amplifier and pre-distortion circuit |
KR100744372B1 (ko) | 2005-02-17 | 2007-07-30 | 삼성전자주식회사 | 파장 잠김된 광원을 이용한 유무선 통합 파장분할다중방식수동형 광 가입자망 장치 |
KR100640385B1 (ko) | 2005-02-18 | 2006-10-31 | 삼성전자주식회사 | 이동 및 고정 무선 서비스 분배 기능을 갖는 bts 장치 |
US7489870B2 (en) | 2005-10-31 | 2009-02-10 | Searete Llc | Optical antenna with optical reference |
US7877101B1 (en) | 2006-12-28 | 2011-01-25 | Marvell International Ltd. | Locating a WLAN station using signal propagation delay |
KR100617806B1 (ko) | 2005-04-04 | 2006-08-28 | 삼성전자주식회사 | 원격 안테나 유닛 및 이를 이용한 파장분할다중 방식의광무선 네트웍 |
CN101160542B (zh) | 2005-04-19 | 2010-10-13 | Adc电信公司 | 环回塞及其方法 |
US7359674B2 (en) | 2005-05-10 | 2008-04-15 | Nokia Corporation | Content distribution & communication system for enhancing service distribution in short range radio environment |
US7881755B1 (en) | 2005-05-26 | 2011-02-01 | Marvell International Ltd. | Wireless LAN power savings |
US20060274704A1 (en) | 2005-06-01 | 2006-12-07 | Prasanna Desai | Method and apparatus for collaborative coexistence between Bluetooth and IEEE 802.11 G with both technologies integrated onto a system-on-a-chip (SOC) device |
US9059782B2 (en) | 2005-06-01 | 2015-06-16 | Broadcom Corporation | Method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines bluetooth and IEEE 802.11 b/g WLAN technologies |
KR20060130806A (ko) * | 2005-06-08 | 2006-12-20 | 삼성전자주식회사 | 코드북 기반 폐루프 방식의 다중 송수신 안테나 시스템에서송수신 장치 및 방법 |
CN100341198C (zh) | 2005-06-13 | 2007-10-03 | 京信通信技术(广州)有限公司 | 高隔离度板状定向智能天线阵 |
GB0512817D0 (en) | 2005-06-23 | 2005-08-03 | Zinwave Ltd | Optical communication system |
GB0513583D0 (en) | 2005-07-01 | 2005-08-10 | Nokia Corp | A mobile communications network with multiple radio units |
GB2428149B (en) | 2005-07-07 | 2009-10-28 | Agilent Technologies Inc | Multimode optical fibre communication system |
US7684835B1 (en) | 2005-07-12 | 2010-03-23 | Marvell Interntional Ltd. | Wake on wireless LAN schemes |
CH705337B1 (de) | 2005-07-14 | 2013-02-15 | Brugg Ag Kabelwerke | Elektrooptisches Kommunikations- und Energiekabel. |
US7388491B2 (en) | 2005-07-20 | 2008-06-17 | Rockwell Automation Technologies, Inc. | Mobile RFID reader with integrated location awareness for material tracking and management |
US7808443B2 (en) | 2005-07-22 | 2010-10-05 | Powerwave Technologies Sweden Ab | Antenna arrangement with interleaved antenna elements |
US7551641B2 (en) | 2005-07-26 | 2009-06-23 | Dell Products L.P. | Systems and methods for distribution of wireless network access |
KR100703367B1 (ko) | 2005-09-12 | 2007-04-03 | 삼성전자주식회사 | 무선 원격 기지국과 그를 이용한 피코-셀 시스템 |
US7548138B2 (en) | 2005-09-29 | 2009-06-16 | Intel Corporation | Compact integration of LC resonators |
US20070076649A1 (en) | 2005-09-30 | 2007-04-05 | Intel Corporation | Techniques for heterogeneous radio cooperation |
US7953417B2 (en) | 2005-11-04 | 2011-05-31 | Qualcomm Incorporated | Methods and apparatus for selecting and signaling a preferred link among a plurality of maintained wireless communications links |
US9191840B2 (en) | 2005-10-14 | 2015-11-17 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information which can be used for interference control |
US8989084B2 (en) | 2005-10-14 | 2015-03-24 | Qualcomm Incorporated | Methods and apparatus for broadcasting loading information corresponding to neighboring base stations |
CN100407825C (zh) | 2005-10-18 | 2008-07-30 | 上海贝尔阿尔卡特股份有限公司 | 分布式基站、通信系统及其使用的信号传输方法 |
US8437712B2 (en) | 2005-10-27 | 2013-05-07 | Telecom Italia S.P.A. | Method and system for multiple antenna communications using multiple transmission modes, related apparatus and computer program product |
JP4852984B2 (ja) * | 2005-11-09 | 2012-01-11 | 株式会社日立製作所 | 複数基地局を用いた伝送路マルチ化システム |
US7412224B2 (en) | 2005-11-14 | 2008-08-12 | Nokia Corporation | Portable local server with context sensing |
US8390456B2 (en) | 2008-12-03 | 2013-03-05 | Tego Inc. | RFID tag facility with access to external devices |
CN100525236C (zh) | 2005-12-19 | 2009-08-05 | 华为技术有限公司 | 光网络与无线通信网络互连的系统及其通信方法 |
US20070274279A1 (en) | 2005-12-19 | 2007-11-29 | Wood Steven A | Distributed antenna system employing digital forward deployment of wireless transmit/receive locations |
WO2007081737A2 (en) | 2006-01-04 | 2007-07-19 | Audiovox Corporation | Receiver and distribution unit for vehicle entertainment system |
GB0600162D0 (en) | 2006-01-05 | 2006-02-15 | Zinwave Ltd | Communications device |
US7672667B2 (en) | 2006-01-17 | 2010-03-02 | Telefonaktiebolaget L M Ericsson (Publ) | Broadcast-centric cellular communication system |
WO2007088561A1 (en) | 2006-02-03 | 2007-08-09 | Pirelli & C. S.P.A. | Passive optical network comprising multi-longitudinal mode emitting devices |
GB0602770D0 (en) | 2006-02-10 | 2006-03-22 | Zinwave Ltd | Optical communication |
US7653038B2 (en) | 2006-02-16 | 2010-01-26 | Marvell World Trade Ltd. | Dual MAC arbitration |
US20090061941A1 (en) | 2006-03-17 | 2009-03-05 | Steve Clark | Telecommunications antenna monitoring system |
US8457576B2 (en) | 2006-03-23 | 2013-06-04 | Marvell International Ltd. | Cellular phone with integrated FM radio and remote low noise amplifier |
US7610046B2 (en) | 2006-04-06 | 2009-10-27 | Adc Telecommunications, Inc. | System and method for enhancing the performance of wideband digital RF transport systems |
DE102006020423B3 (de) | 2006-04-25 | 2007-10-25 | Atmel Germany Gmbh | Verfahren sowie Schaltungsanordnung zur Feldstärkebestimmung |
US7751368B2 (en) | 2006-05-01 | 2010-07-06 | Intel Corporation | Providing CQI feedback to a transmitter station in a closed-loop MIMO system |
US7693486B2 (en) | 2006-05-11 | 2010-04-06 | Nokia Corporation | Distributed multiradio controller |
US7680075B2 (en) | 2006-05-17 | 2010-03-16 | Alcatel-Lucent Usa Inc. | Identification of base stations |
CN101427422B (zh) | 2006-05-23 | 2013-08-07 | 英特尔公司 | 用于无线网络的毫米波片透镜阵列天线系统 |
US8164773B2 (en) | 2006-05-26 | 2012-04-24 | Marvell World Trade Ltd. | Wireless system-in-package and image processing control apparatus |
WO2008108788A2 (en) | 2006-05-31 | 2008-09-12 | Trx Systems, Inc. | Method and system for locating and monitoring first responders |
WO2007141617A1 (en) | 2006-06-02 | 2007-12-13 | Nortel Networks Limited | Ranging regions for wireless communication relay stations |
US7310430B1 (en) | 2006-06-02 | 2007-12-18 | Sbc Knowledge Ventures | Hybrid cables for communication networks |
JP4772596B2 (ja) * | 2006-06-07 | 2011-09-14 | 株式会社東芝 | Rofシステム、光受信器およびその自動調整方法 |
US20080007453A1 (en) | 2006-06-12 | 2008-01-10 | Bill Vassilakis | Smart antenna array over fiber |
US20070285239A1 (en) | 2006-06-12 | 2007-12-13 | Easton Martyn N | Centralized optical-fiber-based RFID systems and methods |
US20070292136A1 (en) | 2006-06-16 | 2007-12-20 | Michael Sauer | Transponder for a radio-over-fiber optical fiber cable |
US20080013956A1 (en) | 2006-07-14 | 2008-01-17 | Tenvera, Inc. | Provisioning of Services Via an Optical Fiber Network |
US7844273B2 (en) | 2006-07-14 | 2010-11-30 | Lgc Wireless, Inc. | System for and method of for providing dedicated capacity in a cellular network |
US20080013957A1 (en) | 2006-07-14 | 2008-01-17 | Tenvera, Inc. | Service Aggregation Gateway |
US20080013909A1 (en) | 2006-07-14 | 2008-01-17 | Tenvera, Inc. | Modular Optical Fiber Network Interface |
GB2440192B (en) | 2006-07-17 | 2011-05-04 | Ubidyne Inc | Antenna array system |
US8325703B2 (en) | 2006-08-16 | 2012-12-04 | Nokia Corporation | Multiradio scheduling including clock synchronization validity protection |
US7627250B2 (en) | 2006-08-16 | 2009-12-01 | Corning Cable Systems Llc | Radio-over-fiber transponder with a dual-band patch antenna system |
US7848770B2 (en) | 2006-08-29 | 2010-12-07 | Lgc Wireless, Inc. | Distributed antenna communications system and methods of implementing thereof |
KR100819257B1 (ko) | 2006-08-31 | 2008-04-02 | 삼성전자주식회사 | 전송시간을 제어하기 위한 radio over fiber시스템 및 방법 |
US7787823B2 (en) | 2006-09-15 | 2010-08-31 | Corning Cable Systems Llc | Radio-over-fiber (RoF) optical fiber cable system with transponder diversity and RoF wireless picocellular system using same |
WO2008039830A2 (en) | 2006-09-26 | 2008-04-03 | Extenet Systems, Inc. | A method and apparatus for using distributed antennas |
US7949364B2 (en) | 2006-10-03 | 2011-05-24 | Nokia Corporation | System for managing radio modems |
DE102006048594B4 (de) | 2006-10-13 | 2009-07-30 | Infineon Technologies Ag | Schaltungsanordnung zum kontaktlosen Datenaustausch und Chipkarte |
US7778603B2 (en) | 2006-10-26 | 2010-08-17 | Nokia Corporation | Bandwidth conservation by reallocating unused time scheduled for a radio to another radio |
US7668565B2 (en) | 2006-11-07 | 2010-02-23 | Nokia Corporation | Multiradio priority control based on modem buffer load |
US20080118014A1 (en) | 2006-11-16 | 2008-05-22 | Nokia Corporation | Utilizing wake-up signals for synchronizing multiradio timing |
US7860518B2 (en) | 2006-11-17 | 2010-12-28 | Alcatel-Lucent Usa Inc. | Locating a mobile station inside a building |
EP1924109B1 (en) | 2006-11-20 | 2013-11-06 | Alcatel Lucent | Method and system for wireless cellular indoor communications |
US9391723B2 (en) | 2006-11-27 | 2016-07-12 | At&T Intellectual Property I, Lp | System and method for high speed data communications |
US20080129634A1 (en) | 2006-11-30 | 2008-06-05 | Pera Robert J | Multi-polarization antenna feeds for mimo applications |
US7991375B2 (en) | 2006-12-06 | 2011-08-02 | Broadcom Corporation | RFIC with high power PA |
US8031795B2 (en) * | 2006-12-12 | 2011-10-04 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Pre-processing systems and methods for MIMO antenna systems |
KR100842533B1 (ko) | 2006-12-13 | 2008-07-01 | 삼성전자주식회사 | 시분할 듀플렉싱 방식 무선광섬유 링크 장치 |
FI20065841A0 (fi) | 2006-12-21 | 2006-12-21 | Nokia Corp | Kommunikointimenetelmä ja -järjestelmä |
US7557758B2 (en) | 2007-03-26 | 2009-07-07 | Broadcom Corporation | Very high frequency dielectric substrate wave guide |
JP4708370B2 (ja) | 2007-01-12 | 2011-06-22 | 日本電信電話株式会社 | 無線通信装置、無線通信システム、ディジタルファイバ無線通信方法およびプログラム |
EP1954019A1 (en) | 2007-02-01 | 2008-08-06 | Research In Motion Limited | System and method for providing simulated spatial sound in a wireless communication device during group voice communication sessions |
US7653397B2 (en) | 2007-02-09 | 2010-01-26 | Nokia Corporation | Managing unscheduled wireless communication in a multiradio device |
US20080191941A1 (en) | 2007-02-12 | 2008-08-14 | Mobileaccess Networks Ltd. | Indoor location determination |
WO2008099383A2 (en) | 2007-02-12 | 2008-08-21 | Mobileaccess Networks Ltd. | Mimo-adapted distributed antenna system |
US20080194288A1 (en) | 2007-02-12 | 2008-08-14 | Broadcom Corporation | Integrated circuit including packet network transceivers and fm receiver with fm antenna control |
US8081923B1 (en) | 2007-02-13 | 2011-12-20 | Extenet Systems Inc. | Method and apparatus for providing location services for a distributed network |
US20080194226A1 (en) | 2007-02-13 | 2008-08-14 | Antonio Rivas | Method and Apparatus for Providing Location Services for a Distributed Network |
US7809012B2 (en) | 2007-02-16 | 2010-10-05 | Nokia Corporation | Managing low-power wireless mediums in multiradio devices |
US20080207253A1 (en) | 2007-02-27 | 2008-08-28 | Nokia Corporation | Multiradio management through quality level control |
US8036308B2 (en) | 2007-02-28 | 2011-10-11 | Broadcom Corporation | Method and system for a wideband polar transmitter |
KR100871229B1 (ko) | 2007-03-06 | 2008-12-01 | 삼성전자주식회사 | 하이브리드 듀플렉싱 방식의 무선통신 서비스를 수행하는유무선 통합 네트워크 시스템 및 이를 위한 신호제어방법 |
US20080233869A1 (en) | 2007-03-19 | 2008-09-25 | Thomas Baker | Method and system for a single-chip fm tuning system for transmit and receive antennas |
JP2007228603A (ja) | 2007-03-20 | 2007-09-06 | Toshiba Corp | 無線通信基地局装置および無線信号光伝送用受信機および無線信号光伝送用送受信機 |
US8005050B2 (en) | 2007-03-23 | 2011-08-23 | Lgc Wireless, Inc. | Localization of a mobile device in distributed antenna communications system |
WO2008120159A2 (en) | 2007-03-30 | 2008-10-09 | Nokia Corporation | System and method for self-optimization of interference coordination in communication systems |
US8265712B2 (en) | 2007-04-13 | 2012-09-11 | Nokia Corporation | Multiradio power aware traffic management |
KR20080093746A (ko) | 2007-04-18 | 2008-10-22 | 삼성전자주식회사 | 저잡음 증폭기를 상하향 공용으로 구성하는 시분할 이중화방식의 원격 스테이션 및 이를 이용한 유선 중계 방법 |
US7920764B2 (en) | 2007-05-04 | 2011-04-05 | Anthony Stephen Kewitsch | Electrically traceable and identifiable fiber optic cables and connectors |
US20080279137A1 (en) | 2007-05-10 | 2008-11-13 | Nokia Corporation | Discontinuous inquiry for wireless communication |
US8666257B2 (en) | 2007-05-24 | 2014-03-04 | Finisar Corporation | Optoelectronic devices with intelligent transmitter modules |
US20080291830A1 (en) | 2007-05-25 | 2008-11-27 | Nokia Corporation | Multiradio control incorporating quality of service |
KR100921861B1 (ko) | 2007-05-29 | 2009-10-13 | 광주과학기술원 | 광파이버 무선 시스템에서의 전광 주파수 상향 변환기 및전광 주파수 상향 변환 방법 |
US7990925B2 (en) | 2007-05-30 | 2011-08-02 | Qualcomm Incorporated | Method and apparatus for communication handoff |
US8044804B1 (en) | 2007-06-01 | 2011-10-25 | Hewlett-Packard Development Company, L. P. | Localizing a tag using variable signal range |
US20080304831A1 (en) | 2007-06-08 | 2008-12-11 | Miller Ii Robert Raymond | Mesh free-space optical system for wireless local area network backhaul |
JP4962152B2 (ja) | 2007-06-15 | 2012-06-27 | 日立電線株式会社 | 光電気複合伝送アセンブリ |
KR20100028570A (ko) * | 2007-06-22 | 2010-03-12 | 클래리톤 네트웍스, 엘티디. | 케이블 텔레비전, 직접 방송 위성, 수동형 광가입자망 기반으로 와이맥스를 제공하기 위한 장치 및 방법 |
US7826862B2 (en) | 2007-06-28 | 2010-11-02 | Symbol Technologies, Inc. | Methods and apparatus for improved locationing in a wireless network |
US7873367B2 (en) | 2007-06-28 | 2011-01-18 | Symbol Technologies, Inc. | Methods and apparatus for locationing in a wireless network using statistical weighting |
US20090028317A1 (en) | 2007-07-26 | 2009-01-29 | The Directv Group, Inc. | Method and system for providing callbacks from a user device using an ip network |
US8964734B2 (en) | 2007-07-26 | 2015-02-24 | The Directv Group, Inc. | Method and system for communicating content having modified packet headers through a satellite |
SG183690A1 (en) | 2007-08-06 | 2012-09-27 | Trx Systems Inc | Locating, tracking, and/or monitoring personnel and/or assets both indoors and outdoors |
US7627218B2 (en) | 2007-08-08 | 2009-12-01 | Corning Cable Systems Llc | Retractable optical fiber tether assembly and associated fiber optic cable |
US8121539B2 (en) | 2007-08-27 | 2012-02-21 | Nokia Corporation | Antenna arrangement |
US8055300B2 (en) | 2007-08-29 | 2011-11-08 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for indoor coverage of user equipment terminals |
US8532683B2 (en) | 2007-10-01 | 2013-09-10 | Nokia Corporation | Simple distributed coordination among cells to achieve efficient dynamic single-frequency network (SFN) operation |
PL2193642T3 (pl) | 2007-10-02 | 2018-09-28 | Nokia Technologies Oy | Sterowanie IP MTU w oparciu o harmonogram wieloradiowy |
US7937051B2 (en) | 2007-10-11 | 2011-05-03 | Nokia Corporation | Apparatus and method for measuring the level of RF signals, and a transmitter including a wide band measurement circuit |
US8175459B2 (en) * | 2007-10-12 | 2012-05-08 | Corning Cable Systems Llc | Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same |
US8521096B2 (en) | 2007-10-19 | 2013-08-27 | Nokia Corporation | Radio access control utilizing quality of service access windows |
US9026129B2 (en) | 2007-12-19 | 2015-05-05 | Qualcomm Incorporated | Systems and methods for locating a mobile device |
WO2009081376A2 (en) | 2007-12-20 | 2009-07-02 | Mobileaccess Networks Ltd. | Extending outdoor location based services and applications into enclosed areas |
WO2009088937A2 (en) | 2008-01-02 | 2009-07-16 | Interdigital Technology Corporation | Method and apparatus for cooperative wireless communications |
US8326324B2 (en) | 2008-01-08 | 2012-12-04 | Wi-Lan, Inc. | Systems and methods for location positioning within radio access systems |
US8666428B2 (en) | 2008-01-29 | 2014-03-04 | Alcatel Lucent | Method to support user location in in-structure coverage systems |
US7870321B2 (en) | 2008-02-06 | 2011-01-11 | Broadcom Corporation | Extended computing unit with stand-alone application |
WO2009100397A2 (en) | 2008-02-08 | 2009-08-13 | Adc Telecommunications, Inc. | An enterprise mobile network for providing cellular wireless service using licensed radio frequency spectrum and supporting multiple-device ring for incoming calls |
US8415777B2 (en) | 2008-02-29 | 2013-04-09 | Broadcom Corporation | Integrated circuit with millimeter wave and inductive coupling and methods for use therewith |
US20090218657A1 (en) | 2008-03-03 | 2009-09-03 | Broadcom Corporation | Inductively coupled integrated circuit with near field communication and methods for use therewith |
US8233939B2 (en) | 2008-03-31 | 2012-07-31 | Intel Corporation | Multiuser sector micro diversity system |
US20090245221A1 (en) | 2008-03-31 | 2009-10-01 | Nokia Corporation | Multiradio operation using interference reporting |
US8274921B2 (en) | 2008-04-01 | 2012-09-25 | Harris Corporation | System and method for communicating data using efficient fast fourier transform (FFT) for orthogonal frequency division multiplexing (OFDM) |
US8763082B2 (en) | 2008-05-13 | 2014-06-24 | At&T Mobility Ii Llc | Interactive client management of an access control list |
US8175028B2 (en) | 2008-05-16 | 2012-05-08 | Redline Communications Inc. | Isolation measurement and self-oscillation prevention in TDD-OFDM repeater for wireless broadband distribution to shadowed areas |
CN101592727B (zh) | 2008-05-29 | 2013-05-01 | 日电(中国)有限公司 | 自治超声波室内定位系统、装置和方法 |
US7969009B2 (en) | 2008-06-30 | 2011-06-28 | Qualcomm Incorporated | Through silicon via bridge interconnect |
CN102089622A (zh) | 2008-07-14 | 2011-06-08 | 矿井安全装置公司 | 确定移动的人员的位置的系统和方法 |
KR101488028B1 (ko) | 2008-07-17 | 2015-01-30 | 엘지전자 주식회사 | 다중 안테나 시스템에서 참조신호 전송 방법 |
US8116230B2 (en) | 2008-07-31 | 2012-02-14 | Motorola Solutions, Inc. | Establishing communication pathways between infrastructure devices in a group communication system implemented over a wide area network |
KR101646249B1 (ko) | 2008-08-11 | 2016-08-16 | 엘지전자 주식회사 | 무선 통신 시스템에서 정보 전송 방법 및 장치 |
US8103213B2 (en) | 2008-09-03 | 2012-01-24 | Nokia Corporation | Software-defined radio configuration |
EP2161854B1 (en) | 2008-09-04 | 2011-01-12 | Alcatel Lucent | Method and wireless communication netwrok for providing communications between a high-speed vehicle and a base station |
US8428018B2 (en) | 2008-09-26 | 2013-04-23 | Lg Electronics Inc. | Method of transmitting reference signals in a wireless communication having multiple antennas |
US20100091475A1 (en) | 2008-10-15 | 2010-04-15 | Qualcomm Incorporated | Electrostatic Discharge (ESD) Shielding For Stacked ICs |
US20100127937A1 (en) | 2008-11-25 | 2010-05-27 | Qualcomm Incorporated | Antenna Integrated in a Semiconductor Chip |
KR101521773B1 (ko) | 2008-11-27 | 2015-05-28 | 삼성전자주식회사 | 위치 추적 장치 및 방법 |
US8310061B2 (en) | 2008-12-17 | 2012-11-13 | Qualcomm Incorporated | Stacked die parallel plate capacitor |
US10014910B2 (en) | 2008-12-30 | 2018-07-03 | Telecom Italia S.P.A. | Method for distributed mobile communications, corresponding system and computer program product |
US8816904B2 (en) | 2009-01-06 | 2014-08-26 | Jeremy Keith Raines | Intelligent signal booster |
US8346278B2 (en) | 2009-01-13 | 2013-01-01 | Adc Telecommunications, Inc. | Systems and methods for mobile phone location with digital distributed antenna systems |
US8854993B2 (en) | 2009-01-23 | 2014-10-07 | Nokia Corporation | Interoperability interface for modem control |
US8326319B2 (en) | 2009-01-23 | 2012-12-04 | At&T Mobility Ii Llc | Compensation of propagation delays of wireless signals |
KR101755038B1 (ko) | 2009-01-30 | 2017-07-06 | 엘지전자 주식회사 | 무선 통신 시스템에서 참조신호 전송 장치 및 방법 |
JP2012517190A (ja) | 2009-02-03 | 2012-07-26 | コーニング ケーブル システムズ リミテッド ライアビリティ カンパニー | 光ファイバベースの分散型アンテナシステム、構成要素、及びそのモニタリング及び構成のための関連の方法 |
US8249523B2 (en) | 2009-02-09 | 2012-08-21 | Broadcom Corporation | Method and system for a multi-port distributed antenna |
US8086192B2 (en) | 2009-03-03 | 2011-12-27 | Broadcom Corporation | Method and system for power control with optimum power efficiency with a multi-port distributed antenna |
US8155601B2 (en) | 2009-03-03 | 2012-04-10 | Broadcom Corporation | Method and system for power combining in a multi-port distributed antenna |
US8219048B2 (en) | 2009-03-03 | 2012-07-10 | Broadcom Corporation | Method and system for receiving signals via multi-port distributed antenna |
US8238842B2 (en) | 2009-03-03 | 2012-08-07 | Broadcom Corporation | Method and system for an on-chip and/or an on-package transmit/receive switch and antenna |
US8305953B2 (en) | 2009-03-31 | 2012-11-06 | Intel Corporation | Narrowband transmissions using a plurality of antennas |
US8140007B2 (en) | 2009-04-01 | 2012-03-20 | Ubidyne, Inc. | Radio system and method for relaying radio signals with a power calibration of transmit radio signals |
US8198736B2 (en) | 2009-04-09 | 2012-06-12 | Qualcomm Incorporated | Reduced susceptibility to electrostatic discharge during 3D semiconductor device bonding and assembly |
US8213957B2 (en) | 2009-04-22 | 2012-07-03 | Trueposition, Inc. | Network autonomous wireless location system |
WO2010129367A2 (en) | 2009-04-28 | 2010-11-11 | Zte (Usa) Inc. | Dedicated acknowledgement and delivery of management messages in wireless communication systems |
US8072381B1 (en) | 2009-04-30 | 2011-12-06 | Cellco Partnership | Location determination in a wireless network |
US8686902B2 (en) | 2009-05-13 | 2014-04-01 | Norberto Lopez | Antenna structures |
US8144613B2 (en) | 2009-05-18 | 2012-03-27 | Empire Technology Development Llc | Achieving quality of service in a wireless local area network |
US20100309049A1 (en) | 2009-06-05 | 2010-12-09 | Nokia Corporation | Directional data distribution |
US8301092B2 (en) | 2009-06-09 | 2012-10-30 | Broadcom Corporation | Method and system for a low noise amplifier utilizing a leaky wave antenna |
US9590733B2 (en) | 2009-07-24 | 2017-03-07 | Corning Optical Communications LLC | Location tracking using fiber optic array cables and related systems and methods |
US8428550B2 (en) | 2009-07-30 | 2013-04-23 | Extenet Systems Inc. | Real-time location determination for in-building distributed antenna systems |
EP2282574B1 (en) | 2009-08-07 | 2017-08-09 | Intel Deutschland GmbH | Arrangement and method for estimating network traffic based on angle of arrival determination in a cellular network |
US20110050501A1 (en) | 2009-08-31 | 2011-03-03 | Daniel Aljadeff | Location system and method with a fiber optic link |
US8423043B2 (en) | 2009-09-14 | 2013-04-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for location fingerprinting |
US20110124347A1 (en) | 2009-09-15 | 2011-05-26 | Byron Hua Chen | Method And Apparatus for UE Positioning in LTE Networks |
US8346432B2 (en) | 2009-09-23 | 2013-01-01 | Ford Global Technologies, Llc | System and method for remotely controlling vehicle components from a nomadic communication device or computer |
US8224233B2 (en) | 2009-10-09 | 2012-07-17 | At&T Mobility Ii Llc | Regulation of service in restricted telecommunication service area |
US8285298B2 (en) | 2009-12-23 | 2012-10-09 | At&T Mobility Ii Llc | Chromatic scheduler for network traffic with disparate service requirements |
US8442538B2 (en) | 2009-12-29 | 2013-05-14 | Trueposition, Inc. | Cooperating receiver selection for UMTS wireless location |
US8290496B2 (en) | 2009-12-29 | 2012-10-16 | Trueposition, Inc. | Cooperating receiver selection for UMTS wireless location |
US20110158298A1 (en) | 2009-12-30 | 2011-06-30 | Silicon Laboratories, Inc. | Tuner circuit with an inter-chip transmitter and method of providing an inter-chip link frame |
US9331798B2 (en) | 2010-01-08 | 2016-05-03 | Commscope Technologies Llc | System and method for mobile location by proximity detection |
US8843174B2 (en) | 2010-02-01 | 2014-09-23 | Telefonaktiebolaget L M Ericsson (Publ) | Indoor cellular network with position information of a mobile device |
US8686734B2 (en) | 2010-02-10 | 2014-04-01 | Disney Enterprises, Inc. | System and method for determining radio frequency identification (RFID) system performance |
EP2357773B1 (en) | 2010-02-10 | 2018-01-10 | Avago Technologies General IP (Singapore) Pte. Ltd | Preamble and header bit allocation for power savings within multiple user, multiple access, and/or MIMO wireless communications systems |
IT1398025B1 (it) | 2010-02-12 | 2013-02-07 | Andrew Llc | Distributed antenna system for mimo communications. |
US8354300B2 (en) | 2010-02-23 | 2013-01-15 | Qualcomm Incorporated | Reducing susceptibility to electrostatic discharge damage during die-to-die bonding for 3-D packaged integrated circuits |
US8804518B2 (en) | 2010-02-26 | 2014-08-12 | Qualcomm Incorporated | Quality of service (QoS) acquisition and provisioning within a wireless communications system |
US8400292B2 (en) | 2010-03-01 | 2013-03-19 | Andrew Llc | System and method for location of mobile devices in confined environments |
US8614622B2 (en) | 2010-03-08 | 2013-12-24 | Ford Global Technologies, Llc | Method and system for enabling an authorized vehicle driveaway |
US8792933B2 (en) | 2010-03-10 | 2014-07-29 | Fujitsu Limited | Method and apparatus for deploying a wireless network |
US9148375B2 (en) | 2010-03-15 | 2015-09-29 | Fujitsu Limited | Method and system for implementing link adaptation based on mobility |
US9030961B2 (en) | 2010-03-15 | 2015-05-12 | Fujitsu Limited | Method and system for implementing link adaptation based on an application profile |
AU2011232897B2 (en) | 2010-03-31 | 2015-11-05 | Corning Optical Communications LLC | Localization services in optical fiber-based distributed communications components and systems, and related methods |
US8620341B2 (en) | 2010-04-12 | 2013-12-31 | Fujitsu Limited | Method and apparatus for adjusting bandwidth allocations in a wireless network |
US8934387B2 (en) | 2010-05-07 | 2015-01-13 | Qualcomm Incorporated | Detecting a WLAN signal using a bluetooth receiver during bluetooth scan activity |
CN105208083B (zh) | 2010-09-14 | 2018-09-21 | 大力系统有限公司 | 用于发送信号的系统和分布式天线系统 |
US9588218B2 (en) | 2010-09-30 | 2017-03-07 | Echo Ridge Llc | System and method for robust navigation and geolocation using measurements of opportunity |
US8174931B2 (en) | 2010-10-08 | 2012-05-08 | HJ Laboratories, LLC | Apparatus and method for providing indoor location, position, or tracking of a mobile computer using building information |
-
2007
- 2007-10-12 US US11/974,226 patent/US8175459B2/en not_active Expired - Fee Related
-
2008
- 2008-09-19 WO PCT/US2008/010878 patent/WO2009048506A1/en active Application Filing
- 2008-09-19 EP EP08836896A patent/EP2203994A1/en not_active Withdrawn
- 2008-09-19 CN CN200880120617XA patent/CN101926107A/zh active Pending
- 2008-09-19 JP JP2010528859A patent/JP2011503930A/ja active Pending
- 2008-09-19 AU AU2008311334A patent/AU2008311334B2/en not_active Ceased
-
2012
- 2012-04-05 US US13/439,996 patent/US8718478B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1720679A (zh) * | 2002-09-10 | 2006-01-11 | 哈里公司 | 提供混合式光学/无线通信的通信系统及相关方法 |
CN1518247A (zh) * | 2003-01-27 | 2004-08-04 | 冲电气工业株式会社 | 中继通信系统 |
CN101005321A (zh) * | 2006-01-18 | 2007-07-25 | 华为技术有限公司 | 基站和有线网络互连的方法和系统 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104467970A (zh) * | 2014-11-28 | 2015-03-25 | 北京邮电大学 | 信号混合传输的转换装置和方法 |
CN107925841A (zh) * | 2015-07-29 | 2018-04-17 | 奈达科技瑞典有限公司 | 定位网络中适于实现语音通信的系统、方法、装置和节点 |
CN108352858A (zh) * | 2015-11-10 | 2018-07-31 | 三菱电机株式会社 | 信息通信装置、信息通信系统以及信息通信方法 |
CN110168832A (zh) * | 2016-12-21 | 2019-08-23 | Abb瑞士股份有限公司 | 用于功率电子元件与控制组件之间的通信的通信网络 |
CN110168832B (zh) * | 2016-12-21 | 2024-01-12 | 日立能源有限公司 | 用于功率电子元件与控制组件之间的通信的通信网络 |
CN106792763A (zh) * | 2017-02-15 | 2017-05-31 | 辽宁大唐国际新能源有限公司 | 一种实现风力发电机组无线信号全覆盖的通信系统 |
CN108847722A (zh) * | 2018-06-27 | 2018-11-20 | 广东工业大学 | 一种多天线能量传输设备、方法和装置 |
CN108847722B (zh) * | 2018-06-27 | 2021-08-13 | 广东工业大学 | 一种多天线能量传输设备、方法和装置 |
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AU2008311334A1 (en) | 2009-04-16 |
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JP2011503930A (ja) | 2011-01-27 |
US8175459B2 (en) | 2012-05-08 |
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AU2008311334B2 (en) | 2012-09-20 |
US20120195329A1 (en) | 2012-08-02 |
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