CN104243004A - 分布式天线通信系统 - Google Patents

分布式天线通信系统 Download PDF

Info

Publication number
CN104243004A
CN104243004A CN201410342556.9A CN201410342556A CN104243004A CN 104243004 A CN104243004 A CN 104243004A CN 201410342556 A CN201410342556 A CN 201410342556A CN 104243004 A CN104243004 A CN 104243004A
Authority
CN
China
Prior art keywords
port
hub
interface
base station
distributed antenna
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410342556.9A
Other languages
English (en)
Other versions
CN104243004B (zh
Inventor
S.谢纳特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commscope Connectivity LLC
Original Assignee
LGC Wireless LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LGC Wireless LLC filed Critical LGC Wireless LLC
Publication of CN104243004A publication Critical patent/CN104243004A/zh
Application granted granted Critical
Publication of CN104243004B publication Critical patent/CN104243004B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components

Abstract

一种分布式天线系统包括基站收发台、多个分布式天线单元以及信号路由装置。基站收发台具有生成有重叠发射频率且包含不同通信内容的多个下行信号的多个输出端口。不同通信内容被指向多个移动单元中的每一个。基站收发台还有至少一个上行接收端口以接收上行信号。该上行信号包括从移动单元中的至少一个移动单元接收到的通信内容。多个分布式天线单元有不重叠的或仅部分重叠的覆盖范围。信号路由装置将下行信号路由至多个分布式天线，使得多个下行信号的每一个被一个或多个分布式天线发射并且每个分布式天线仅发射所述下行信号中的一个下行信号。

Description

分布式天线通信系统
本申请是申请号为200780053555.0(国际申请号为PCT/US2007/023494，国际申请日为2007年11月8日)、发明名称为“分布式天线通信系统”的我国专利申请的分案申请。
发明领域
本发明涉及无线通信，更特别地，涉及用于无线通信的分布式天线系统。
发明背景
在常规的无线蜂窝电话网络中，基站收发台(BTS)促进了在移动单元(例如蜂窝电话)和电话网络之间的通信。典型的基站包括用来向移动单元发送无线电信号(下行)并且从移动单元接收无线电信号(上行)的多个收发单元和天线。基站的天线被安放室外，在蜂窝塔上或在建筑物的顶端。基站被定位在关键地方，为的是最大化在广大的地理区域内的覆盖范围。基站经由回程连接与电话网络进行通信上的耦合。
常规基站为基站的每个天线使用一个发射输出信号和一个接收信号。发射和接收信号工作在不同的频率上，这允许对发射信号和接收信号进行分离。这就允许了通过双工器合并发射信号和接收信号，使得单天线可用于发射和接收这两个信号。所以经由天线多个移动设备可以同时进行通信，发射和接收信号每个都被分配到多个信道中。例如，用于蜂窝通信的CDMA(码分多址)协议，例如UTMS(通用移动电信系统)，以及用于蜂窝通信的TDMA(时分多址)协议，例如GSM(全球移动通信系统)，都允许几个通信信道被合并成发射信号和接收信号。
在另一个配置中，基站使用接收分集技术，其中两个天线被用来从移动单元接收上行信号。这种情况下，接收天线是同地协作的，因为它们被安装在同一个室外结构上但相互之间略有间隔。来自每个天线的信号于是被合并以形成上行信号。这种配置可以提高蜂窝覆盖或允许移动单元使用较小输出功率。
更新一代的基站支持多输入多输出(MIMO)的配置。一个例子就是MIMO2x2，其中基站使用两个发射天线用于下行信号和两个接收天线用于上行信号。另一个例子是MIMO4x4，其中使用四个发射天线用于下行信号并使用四个接收天线用于上行信号。在所有这些MIMO配置中，天线都是同地协作的，因为它们被安装在同一个室外结构上但相互之间略有间隔。
这些MIMO配置被用于改善基站的吞吐量。这是通过基站合并从多个天线所获得的多个信号来使被合并的信号更强或减少干扰来实现的
虽然当移动设备位于室外时这些MIMO配置可以改善通信，但当位于室内时由建筑物结构导致的信号衰减(即室内穿透损耗)还是会使移动单元产生通信困难。
在分布式天线系统(DAS)中，在位于分布地点的几个天线之间分配发射功率，以便可以用与使用单天线所要求的相比较少的发射功率来提供大的覆盖范围。DAS系统被用来为无线通信提供室内覆盖。无论如何，常规分布式天线系统还留有改善的空间。
所需要的是一种改进的用于无线通信的分布式天线系统。
发明内容
本发明提供了一种分布式天线系统，根据实施方式，该系统包括基站收发台，基站收发台具有生成多个下行信号的多个输出端口，该多个下行信号具有重叠的发射频率且包含不同通信内容。不同通信内容被指向于多个移动单元的每一个。基站收发台还具有至少一个上行接收端口以接收上行信号。该上行信号包括从所述移动单元中的至少一个移动单元接收到的通信内容。系统还包括多个分布式天线单元，该多个分布式天线单元具有不重叠的或仅部分重叠的覆盖范围。系统还包括信号路由装置，该信号路由装置用于将下行信号路由至多个分布式天线，使得多个下行信号的每一个通过一个或多个分布式天线被发射，并且每个分布式天线仅发射所述下行信号中的一个下行信号。
根据可选择的实施方式，所述系统包括多个分布式天线单元和一个多口集线器。该集线器包括用于连接电信系统的基站的第一接口，该第一接口包括用于从基站收发台接收通信的多个下行端口以及用于向基站收发台发送通信的多个上行端口。该集线器还包括具有用于发送通信到多个天线中的每一个天线的下行端口的第二接口，以及第一接口具有用于从多个天线单元中的每一个天线单元接收通信的上行端口。集线器还包括用于在多种预先确定的配置中重新配置集线器的装置，每种配置将第一接口的一个或多个下行端口路由到第二接口的选择的一组下行端口，并且将第二接口的选择的一组上行端口路由至第一接口的一个或多个上行端口。
附图简述
关于本发明的特定示例性实施方式描述本发明，以及相应地参考附图，其中：
图1示出根据本发明实施方式的分布式天线通信系统；
图2示出根据本发明实施方式的图1的多端口集线器的细节；以及
图3A-C示出根据本发明实施方式的分布式天线单元的覆盖范围的示例性布置；
图4示出根据本发明实施方式的包含了可编程分离器和可编程合成器的集线器；
图5示出根据本发明实施方式的包含了硬接线分离器和硬接线合成器的集线器；
图6示出根据本发明可选择实施方式的分布式天线通信系统；以及
图7A-B示出根据本发明实施方式的分布式天线单元的覆盖范围的示例性布置。
发明详述
图1示出根据本发明的实施方式的分布式天线通信系统100。如图1所示，基站收发子系统(其也可被称为BTS或基站)102经由回程链接106与电话网络104进行通信上的耦合。在通信网络104中，回程106与基站控制器(BSC)108耦合，反过来，BSC108与移动交换中心(MSC)110耦合。MSC110与公共交换电话网络(PSTN)112(例如用于语音通信)耦合并且还可以与互联网114(例如用于数据通信)耦合。
BSC108可以执行各种常规功能，其包括无线电信道分配、基站之间的呼叫切换、配置基站102、处理警报和执行网络管理功能。MSC110可以执行各种常规功能，包括电路交换，以及给移动用户提供应用和呼叫性能，比如呼叫振铃和漫游。在一个实施方式中，某些常规地由BSC108和MSC110执行的性能可以用基站102替代执行。例如，基站102可以包括本地服务器，其被用Linux操作系统配置来执行这些功能。
基站102还与多口集线器116通过例如无线链接进行通信上的耦合。基站102可以位于蜂窝服务供应商的站点(site)。集线器116与多个天线单元118进行通信上的耦合。每个天线单元118都形成相应的覆盖范围。典型地，集线器116和天线单元118是位于室内的。例如，集线器116可以位于商业大厦的设备柜中，同时天线单元118可以分布在整个建筑物中，为的是形成实质上包括了建筑物中的占用范围的覆盖范围。因此天线单元118的覆盖范围是分布式的，这意味着它们是非重叠或仅部分重叠的。天线单元118通过双向链接122与集线器116耦合。每个天线单元118都可以包括天线和收发器。
在覆盖范围内的移动通信设备120(例如蜂窝电话)经由天线单元118、集线器116、基站102和回程106中的一个或多个，与通信网络104进行通信上的耦合。集线器116和天线单元118共同形成分布式天线系统(DAS)。虽然很明显可以提供不同数量的天线单元118，但是在图1所示的示例性系统中提供了八个天线单元118。
基站102可以有多输入多输出(MIMO)能力。这意味着基站102可以有能力处理并且发送并行的下行信号(例如有相同发射频率或者至少有重叠的发射频带或信道)至多个发射天线。此外，基站102可以有能力从多个接收天线接收并行的上行信号并且把来自每个天线的信号处理成合并的信号。在这种情况下，来自每个天线的信号处于相同的接收频率上或至少在重叠的频带内，并且可以包含冗余内容和/或重叠信道。
图2示出根据本发明实施方式的图1的多端口集线器的细节。基站102与集线器116的一个或多个发射(下行)端口相连。如图2所示，这些下行端口以DA、DB、DC和DD标记。又如图2所示的，实线表明基站102与端口DA相连接。虚线表明到端口DB、DC和DD的可选连接。例如，如果使用MIMO2x2，基站102可以有到下行端口的两个连接和到上行端口的两个连接。在MIMO4x4的情况中，可以对上行和下行的每一个都使用4个连接。虽然图2示出了到4个下行端口的最多4个连接，但很明显地这是示例性的且可以提供不同数量的端口。
从基站102所接收到的发射(下行)信号有相同或至少重叠的频率；例如，它们可以工作在相同的频道上。但是它们可以包含不同的通信内容。例如，第一下行信号可以在端口DA被发射并工作在1900MHz频带内。这个第一下行信号可以包含指向特定移动单元120的通信内容。第二下行信号可以在端口DB被发射并可也工作在1900MHz的频带内。但是，该第二下行信号可以包含与第一下行信号不同的通信内容。该第二下行信号的内容可以被指向移动单元中不同的一个移动单元。这些移动单元的任何一个都可以接收到预定给其他移动单元的信号。这种情况下，移动单元可以忽视预定给其他设备的内容。
来自端口D1到D4的下行信号通过集线器116被路由至天线单元118的被选择的组。如图2所示，集线器116被提供了发射(下行)端口D1到D8，其中每一个发射端口用于8个天线单元118中的每一个天线单元。可重新配置的开关124把来自基站端口DA到DD的下行信号路由至下行天线端口D1到D8中的被选择的端口。例如，如果使用8个天线单元118和MIMO2x2配置，则一半的远程天线单元118与下行端口DA连接并且另一半与下行端口DB连接。在一个这样配置中，下行端口DA可以与天线端口D1、D2、D3和D4相连，同时下行端口DB可以与天线端口D5、D6、D7和D8相连。因此，在这种配置下，在基站端口DA的下行信号在天线端口D1、D2、D3和D4上被重复。相类似地，在基站端口DB的信号在天线端口D5、D6、D7和D8上被重复。在一个可选择配置中，下行端口DA可以与天线端口D1、D3、D5和D7相连，同时下行端口DB可以与天线端口D2、D4、D6和D8相连。
基站102还被连接到集线器116的一个或多个接收(上行)端口。如图2所示，这些上行端口被标记为UA、UB、UC和UD。又如图2所示，实线表明基站102与端口UA相连。虚线表明到端口UB、UC和UD的可选连接。例如，如果使用MIMO2x2，则基站102将会有到上行端口的两个连接。在MIMO4x4的情况中，可使用4个连接。虽然图2示出了到4个上行端口的最多4个连接，但很明显地这是示例性的且可以提供不同数量的端口。
来自天线的被选择的组的上行信号通过集线器116被路由至基站的上行端口UA、UB、UC或UD。如图2所示，集线器116被提供了接收(上行)端口U1到U8，其中每一个接收端口用于8个天线单元118中的每一个天线单元。可重新配置的开关124把来自天线基站端口UA到UD的上行信号路由至上行天线端口U1到U8中被选择的天线端口。例如，如果使用8个天线单元118和MIMO2x2配置，则一半的远程天线单元118可被连接至上行端口UA并且另一半被连接至上行端口UB。在一个这样配置中，上行端口UA可以与天线端口U1、U2、U3和U4相连，同时上行端口UB可以与天线端口U5，、U6、U7和U8相连。因此，在这种配置下，在天线端口U1、U2、U3和U4上的上行信号可以通过信号求和被合并以形成在基站端口UA上的上行信号。相类似地，在天线端口U5、U6、U7和U8的信号被合并以形成在基站端口UB的上行信号。在一个可选择配置中，上行端口UA被连接至天线端口U1、U3、U5和U7，同时下行端口UB被连接至天线端口U2、U4、U6和U8。
在上行端口UA到UD从集线器102接收的接收(上行)信号有相同的接收频率并且包含了冗余内容和/或重叠的信道。然而，这些上行信号可以不包含相同的内容，因为通过特定移动设备发射的信号可存在于一个上行信号的信道内，而可能不存在于所有上行信号中或其可能以不同的信号强度存在。
系统100能够支持在基站102和移动单元120之间的双工通信。在优选的实施方式中，每个天线单元118使用单天线用于双工上行和下行信号。例如，上行和下行信号可以根据频分双工进行工作。可选择地，上行信号和下行信号可以根据时分双工进行工作。参考附图，在天线端口D1上的下行信号和在天线端口U1的上行信号可以是双工的。在其他端口上的下行信号和上行可以是相类似的双工的。
通过基站102生成的下行信号可以是射频(RF)信号。相类似地，通过天线单元118发射的下行信号可以是RF的。相应地，下行信号可通过集线器116以RF的形式被路由而不需频率变换。可选择地，通过基站102生成的RF下行信号可以被下变频为中频(IF)信号用以通过集线器116进行路由。然后在通过天线单元118重新发射之前，IF信号可以被向上变频为RF的。例如，对下行而言，集线器116可以包含位于端口DA、DB、DC和DD与开关124之间路径上的频率下变频器。还是对于下行，频率上变频器可以位于集线器116中，在开关124和端口D1到D8之间。可选择地，频率上变频器可以位于天线单元118中。对上行而言，频率下变频器可以位于集线器116中、在端口U1到U8与开关124之间，或者在天线单元118中。还是对于上行，频率上变频器还可以位于集线器116中，在开关124和端口UA、UB、UC和UD之间。
DAS系统可以连接到支持各种不同的MIMO配置的各种不同的基站上。集线器116的可重新配置的开关124适应这些不同的基站配置。此外，集线器116还可以允许用户从开关124容许的预先确定的配置中进行选择(通过用户接口)。使用以上例子，对MIMO2x2，可重新配置的开关124可以连接一半的远程天线单元118至下行端口DA并且连接另一半至下行端口DB。但是，可以有多种容许的选择方案来进行这样的连接。在第一种配置中，下行端口DA可以连接至天线端口D1、D2、D3和D4，同时下行端口DB可以连接至天线端口D5、D6、D7和D8。在第二种配置中，下行端口DA可以连接至天线端口D1、D3、D5和D7，同时下行端口DB可以连接到天线端口D2、D4、D6和D8。对这样的MIMO2x2配置，端口DC、DD、UC和UD未被使用，因此也可以没有连接。
在一个优选的实施方式中，集线器116自动确定基站下行端口DA到DB中哪些被激活以及基站的上行端口UA到UB中哪些被激活。集线器116还可以确定天线下行端口D1到D8和上行端口U1到U8中哪些具有相连接的天线单元118。这可以通过集线器控制器126感测在端口处是否有电信号存在(例如通过场强感测)或者感测电缆是否被机械地插入端口(例如通过机械开关)来完成。然后确定哪些端口被激活对开关124的容许的预先确定的配置起决定性作用。这种情况下，开关124可通过集线器控制器126(即开关124可在远程控制内被重新配置)被配置或重新配置。
提供了最多4个下行和4个上行基站端口的基站102的典型配置包括：单入单出(这也可被称为“SISO”或“MIMO1x1”)；单入双出(这也可被称为“SIMO1x2”或“MIMO1x2”)；单入四出(这也可被称为“SIMO1x4”或“MIMO1x4”)；双入单出(这也可被称为“MISO2x1”或“MIMO2x1”)；双入双出(这也可被称为“MIMO2x2”)；双入四出(这也可被称为“MIMO2x4”)；四入单出(这也可被称为“MISO4x1”或“MIMO4x1”)；四入双出(这也可被称为“MIMO4x2”)；以及四入四出(这也可被称为“MIMO4x4”)。
对MIMO1x1，一个下行基站端口(例如端口DA)和一个上行基站端口(例如端口UA)是激活的。这种情况下，开关124可能只有一种容许的配置，其中基站端口DA连接至所有的下行天线端口(例如端口D1到D8)并且其中所有上行天线端口(例如端口U1到U2)被连接至基站端口UA。
对基站MIMO1x2，一个下行基站端口(例如端口DA)和两个上行基站端口(例如端口UA和UB)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，基站端口DA可以连接至所有下行天线端口(例如端口D1到D8)，同时上行天线端口(例如端口U1到U8)可以被分成两组，其中一组被连接至基站端口UA并且另一组连接至基站端口UB。
图3A-C示出分布式天线单元118的覆盖范围128的示例性布置。在优选实施方式中，覆盖范围128位于室内，在建筑物130中。例如，该布置可以是对单层建筑或对多层建筑中的单一楼层。每个覆盖范围128对应天线单元118并因此每个覆盖范围128还对应集线器116的天线端口。如图3A-C所示的覆盖范围最好是在建筑物130中平均分布的并且平等地适用于下行和上行信号发射(signaling)。因为有8个下行和上行天线端口，如图3A-C所示有8个覆盖范围128。这些覆盖范围128都是被绘为近似圆形并用相应天线端口的号码来标识。图3A示出了天线端口1到4的覆盖范围形成了第一组并且天线端口5到8的覆盖范围形成了第二组。
因此，回到MIMO1x2的例子，图3A表明上行天线端口U1到U4是在第一组中且与基站端口UA相连，以及上行天线端口U5到U8是在第二组中且与基站端口UB相连。在图3A中，远程天线单元的组被布置以最大化邻接的覆盖范围并且最小化不同组天线单元118的覆盖范围之间的边界。可以看到邻接的覆盖范围被最大化，这是因为用于端口1、2、3和4的天线的范围形成了一个邻接范围，同时用于端口5、6、7和8的天线的范围形成了另一个邻接范围。还可以看到在图3A中的边界被最小化，这是因为在不同组的覆盖范围之间只有2块重叠的范围：在用于端口3和5的天线的范围之间以及在用于端口4和6的天线的范围之间。这样的配置有利于减少经由不同天线单元118与基站102通信的不同移动单元140之间的干扰。
图3B显示上行天线端口U1、U2、U5和U6是在第一组中并和基站端口UA相连，以及上行天线端口U3、U4、U7和U8是在第二组中并和基站端口UB相连。在这种配置中，天线单元118与不同组中的天线单元118相邻。在图3B中，远程天线单元的组被布置以最小化邻接的覆盖范围并最大化不同组天线单元118的覆盖范围之间的边界。可以看到，与图3A的布置相比较，邻接的覆盖范围被最小化，这是因为每个邻接范围只包括两个天线的范围。还可以看到，与图3A相比较，边界被最大化，因为在图3B中在不同组的覆盖范围之间有6块重叠的范围：在用于端口1和3的天线的范围之间；在用于端口2和4的天线的范围之间；在用于端口3和5的天线的范围之间；在用于端口4和6的天线的范围之间；在用于端口5和7的天线的范围之间；以及在用于端口6和8的天线的范围之间。这样的配置能最大化相邻覆盖范围之间的干扰，并因此有利于干扰的消除。
还有另一种布置，其将进一步最小化邻接的覆盖范围并最大化不同天线元件118覆盖范围之间的边界，该布置将以交替的棋盘格局来布置覆盖范围128(例如上行天线端口U1、U4、U5和U8为第一组并且上行天线端口U2、U3、U6和U7为第二组)
图3C显示一个实施方式，其中上行天线端口U1、U3、U5和U7是在第一组中且被连接至基站端口UA。此外，上行天线端口U2、U4、U6和U8在第二组中且被连接至基站端口UB上。这种配置实质上是图3A和3B的配置之间的折衷。
在一个实施方式中，用户可以从开关124的容许的配置中以及因此天线覆盖范围128的分组布置中进行选择。例如，用户可以在一段时间内尝试每一种分组布置，然后可以选择一个产生最好整体性能的分组布置用于连续工作。很显然图3A-C的预先确定的组是示例性的并且不同的组可以被形成。
对MIMO1x4，1个下行基站端口(例如端口DA)和4个上行基站端口(例如端口UA到UD)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许配置中，基站端口DA可以被连接到所有下行天线端口(例如端口D1到D8)，同时上行天线端口(例如端口U1到U8)可以被分成4个组，其中一个组连接到基站端口UA到UD中的每一个。如之前所述，容许的分组可以通过最小化边界来最小化干扰，或者可以通过最大化边界来最大化干扰，或者可以表现为在两个极端情况之间的折衷。用户可以从多个容许的布置分组中作出选择。
对MIMO2x1，2个下行基站端口(例如端口DA和DB)和1个上行基站端口(例如端口UA)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，基站端口UA可以被连接到所有上行天线端口(例如端口U1到U8)，同时下行天线端口(例如端口D1到D8)可以被分成2个组，其中一个组连接到基站端口DA且另一个组可以连接到基站端口DB。在这种情况下，用户可以从容许的分组(其可以包括图3A-C的组)中为下行信号作出选择。
对MIMO2x2，2个下行基站端口(例如端口DA和DB)和2个上行基站端口(例如端口UA和UB)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，下行天线端口(例如D1到D8)可以被分成2个组，其中一个组连接到基站端口DA且另一个组连接到基站端口DB。此外，上行天线端口(例如U1到U8)可以被分成2个组，其中一个组连接到基站端口UA且另一个组连接到基站端口UB。在这种情况下，用户可以从容许的分组(其可以包括图3A-C的组)中为上行和下行信号作出选择。
对MIMO2x4，2个下行基站端口(例如端口DA和DB)和4个上行基站端口(例如端口UA和UD)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，下行天线端口(例如D1到D8)可以被分成2个组，其中一个组连接到基站端口DA且另一个组连接到基站端口DB。此外，上行天线端口(例如U1到U8)可以被分成4个组，其中一个组连接到基站端口UA到UD中的每一个。在这种情况下，用户可以从多个容许的分组中为上行和下行信号作出选择。
对MIMO4x1，4个下行基站端口(例如端口DA和DD)和1个上行基站端口(例如端口UA)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许配置中，下行天线端口(例如D1到D8)可以被分成4个组，其中一个组连接到基站端口DA到DD中的每一个，同时基站端口UA可以被连接到所有上行天线端口(例如端口U1到U8)。和其他MIMO配置一样，容许的分组可以通过最小化边界来最小化干扰，或者通过最大化边界来最大化干扰，或者可以表现为在两个极端情况之间的折衷。用户可以从多个容许的布置分组中为下行信号作出选择。
对MIMO4x2，4个下行基站端口(例如端口DA到DB)和2个上行基站端口(例如端口UA到UD)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，下行天线端口(例如D1到D8)可以被分成4个组，其中一个组连接到基站端口DA到DD中的每一个。此外，上行天线端口(例如U1到U8)可以被分成2个组，其中一个组连接到基站端口UA并且另一个组连接到基站端口UB。在这种情况下，用户可以从多个容许的分组中为上行和下行信号作出选择。
对MIMO4x4，4个下行基站端口(例如端口DA到DB)和4个上行基站端口(例如端口UA到UD)是激活的。这种情况下，开关124可以有多种容许的配置。在这些容许的配置中，下行天线端口(例如D1到D8)可以被分成4个组，其中一个组连接到基站端口DA到DD中的每一个。此外，上行天线端口(例如U1到U8)可以被分成4个组，其中一个组连接到基站端口UA到UD中的每一个。在这种情况下，用户可以从多个容许的分组中为上行和下行信号作出选择。
通过例如从交叉开关、多路复用器的适当配置，或者信号分离器和合并器的适当布置中选择的信号路由元件，可以实现可重新配置的开关124。在每一种情况下，开关124可以在集线器控制器126的控制下被远程地重新配置。图4显示了集线器116的示例性实施方式，其中可编程分离器132可以被提供用于下行，下行基站端口DA到DD的每一个都与分离器132的输入相连，并且分离器132的输出与下行天线端口D1到D8相连接。该分离器132可以被远程地控制以使下行信号从基站端口DA到DD中的任意一个被路由至天线端口D1到D8中的任意一个。对于上行而言，可编程合并器134可以被提供用于上行，合并器134的输入被连接至上行天线端口U1到U8，并且合并器134的输出被连接至上行基站端口UA到UD。合并器134还可以被远程地控制以使上行信号从任意天线端口被路由至任意基站端口。集线器116的操作包括对可重新配置的开关124的配置，这可以通过集线器控制器126进行控制。信号路由元件可以是无源的(无放大)或者有源的(有放大)。
在一个可选择的实施方式中，开关124使用手动配置(例如“硬接线”)，而不是被远程控制。图5示出集线器116，其中下行和上行信号通过分离器136、138和合并器140被路由。更特别地，分离器136是一至四分离器，它的输入被连接至基站下行端口DA。分离器136的4个输出分别与天线下行端口D1、D2、D3和D4相连。分离器138是一至四分离器，它的输入与基站下行端口DB相连。分离器138的4个输出端分别与天线下行端口D5、D6、D7和D8相连。合并器140是八至一合并器，它的输出被连接至基站上行端口UA。合并器140的8个输入分别与天线上行端口U1到U8相连。图5的配置是MIMO2x1，其发射覆盖范围如图3A的布置。很明显图5的特定配置是示例性的并且集线器116可以用不同的信号路由配置来手动配置。例如，集线器116可以包含位于配线柜中的电缆、一个或多个分离器以及一个或多个的合并器；集线器116的这些元件可以根据需要手动配置或重新配置。
在上面描述的实施方式中，每个天线单元118都包含一个发射天线和一个接收天线(虽然这些双工功能通过单天线被完成)。在一个可选择的实施方式中，一个天线单元可以被提供有两个或多个发射天线和/或接收天线。图6示出根据本发明的可选择的实施方式的分布式天线通信系统。图6的系统与图2的不同之处在于多个天线单元142的每一个都包含了两个发射天线和两个接收天线。如前所述，每个天线可以完成双工的发射和接收功能。但是在图6的系统中，特定天线单元142的天线是同地协作的，这样他们的覆盖范围实质上是重叠的。同一个天线单元142的两个天线可以被连接到不同的基站下行端口和/或基站上行端口。例如，来自基站端口DA的下行信号可以被路由至特定天线单元142的第一天线，同时来自基站端口DB的下行信号可以被路由至相同天线单元的第二天线。相类似地，来自特定天线单元142的第一天线的上行信号可以被路由至基站上行端口UA，同时来自同一天线单元142的第二天线的上行信号可以被路由至基站上行端口UB。
图6的天线单元142是分布式的(例如遍及建筑物的被占用区域)。图7A-B示出根据本发明实施方式的用于分布式天线单元的覆盖范围144的示例性布置。特别地，7A-B显示下行和上行天线端口D1、U1、D2和U2的覆盖范围144是同地协作的(例如在范围“1”)，以及下行和上行天线端口D3、U3、D4和U4的覆盖范围144是同地协作的(例如在范围“2”)。此外，7A-B显示下行和上行天线端口D5、U5、D6和U6的覆盖范围144是同地协作的(例如在范围“3”)，以及下行和上行天线端口D7、U7、D8和U8的覆盖范围144是同地协作的(例如在范围“4”)。
在图7A的实施方式中，天线端口U1和U7(分别相应于范围“1”和“4”)可以与基站上行端口UA相连接，同时天线端口U2和U8(分别相应于范围“1”和“4”)可以与基站上行端口UB相连接。此外在图7A中，天线端口U3和U5(分别相应于范围“2”和“3”)可以与基站上行端口UC相连接，同时天线端口U4和U6(分别相应于范围“2”和“3”)可以与基站上行端口UD相连接。下行天线端口可以以类似的方式被连接至基站下行端口。在图7A中，覆盖范围被布置以最小化邻接的覆盖范围并且最大化在不同天线单元142的覆盖范围之间的边界。
在图7B的实施方式中，天线端口U1和U3(分别相应于范围“1”和“2”)可以与基站上行端口UA相连接，同时天线端口U2和U4(分别相应于范围“1”和“2”)可以与基站上行端口UB相连接。此外在图7B中，天线端口U5和U7(分别相应于范围“3”和“4”)可以与基站上行端口UA相连接，同时天线端口U6和U8(也分别相应于范围“3”和“4”)可以与基站上行端口UB相连接。下行天线端口可以以类似的方式被连接至基站下行端口。在图7B中，覆盖范围被布置以最大化邻接的覆盖范围并且最小化在不同天线单元142的覆盖范围之间的边界。
因此，在图7A-B中，天线是成对地同地协作的，同时这些天线对是分布式的。为了最小化干扰，这些天线对可以是分布式的以最小化在不同天线单元142的覆盖范围之间的边界。可选择地，为了最大化干扰的消除，这些天线对可以是分布式的以最大化在不同天线单元142的覆盖范围之间的边界。
本发明的以上详细描述被提供用于举例说明，它的目的不是详尽无遗的或把本发明限制在被公开的实施方式中。因此，本发明的范围被随附的权利要求来界定的。

Claims (20)

1.一种分布式天线系统，其包括：
多个分布式天线单元；以及
集线器，其包括：
用于连接到基站的第一接口，所述第一接口包括用于从所述基站接收下行信号的多个下行端口和用于将上行信号发送到所述基站的多个上行端口；以及
用于连接到所述分布式天线单元的第二接口，所述第二接口包括用于将下行信号发送到所述多个分布式天线单元的多个下行端口和用于从所述多个分布式天线单元接收上行信号的多个上行端口；和
可重新配置的交换机，其选择性地将所述第一接口的一个或多个下行端口路由到所述第二接口的下行端口中的一个或多个，使得所述多个下行信号中的每一个都由所述分布式天线单元中的一个或多个发射并且每个分布式天线单元仅发射所述下行信号中的一个；并且
其中所述集线器被配置成自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用；以及
其中所述分布式天线单元中的每一个都位于远离所述集线器的相应位置处。
2. 根据权利要求1所述的分布式天线系统，其中所述集线器被配置成通过做以下各项中的至少一个来自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用：
感测所述第一接口的下行端口中的哪些是活动的；以及
感测所述第一接口的上行端口中的哪些是活动的。
3. 根据权利要求1所述的分布式天线系统，其中所述集线器被配置为以下各项中的至少一个：电力地感测到所述基站的连接；以及机械地感测到所述基站的连接。
4. 根据权利要求1所述的分布式天线系统，其中所述集线器被配置成自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用。
5. 根据权利要求4所述的分布式天线系统，其中所述集线器被配置成通过做以下各项中的至少一个来自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用：
感测所述第二接口的下行端口中的哪些具有与其连接的分布式天线单元；以及
感测所述第二接口的上行端口中的哪些具有与其连接的分布式天线单元。
6. 根据权利要求4所述的分布式天线系统，其中所述集线器被配置为以下各项中的至少一个：电力地感测到所述分布式天线单元的连接；以及机械地感测到所述分布式天线单元的连接。
7. 根据权利要求1所述的分布式天线系统，其中所述分布式天线单元位于室内。
8. 根据权利要求1所述的分布式天线系统，其中所述可重新配置的交换机选择性地将所述第二接口的一个或多个上行端口路由到所述第一接口的上行端口中的一个或多个。
9. 根据权利要求1所述的分布式天线系统，其中从所述基站收发器发射的所述多个下行信号包括多输入多输出（MIMO）下行信号；并且其中所述上行信号包括多输入多输出（MIMO）上行信号。
10. 一种分发通信的方法，其包括：
接收从基站发射的多个下行信号，所述多个下行信号在包括在集线器的第一接口中的多个下行端口处被接收，所述多个下行信号具有重叠发射频率并且包含不同的通信内容；
在所述集线器中使用可重新配置的交换机来选择性地将所述第一接口的一个或多个下行端口路由到包括在所述集线器中的第二接口的多个下行端口中的一个或多个，所述第二接口的下行端口用于将所述下行信号发送到多个分布式天线单元，所述分布式天线单元中的每一个都位于远离所述集线器的相应位置处，其中所述第一接口的一个或多个下行端口被选择性地路由到所述第二接口的多个下行端口中的一个或多个，使得所述多个下行信号中的每一个都由所述分布式天线单元中的一个或多个发射并且每个分布式天线单元仅发射所述下行信号中的一个；
从所述多个分布式天线单元接收多个上行信号，所述多个上行信号在包括在所述集线器的第二接口中的多个上行端口处被接收；
从包括在所述集线器的第一接口中的多个上行端口将所述上行信号发送到所述基站；以及
在所述集线器中自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用。
11. 根据权利要求10所述的方法，其中在所述集线器中自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用包括至少一个：
在所述集线器中感测所述第一接口的下行端口中的哪些是活动的；以及
在所述集线器中感测所述第一接口的上行端口中的哪些是活动的。
12. 根据权利要求10所述的方法，其中在所述集线器中自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用包括至少一个：
在所述集线器中电力地感测到所述基站的连接；以及
在所述集线器中机械地感测到所述基站的连接。
13. 根据权利要求10所述的方法，还包括：在所述集线器中自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用。
14. 根据权利要求13所述的方法，其中在所述集线器中自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用包括
在所述集线器中感测所述第二接口的下行端口中的哪些具有与其连接的分布式天线单元；以及
在所述集线器中感测所述第二接口的上行端口中的哪些具有与其连接的分布式天线单元。
15. 根据权利要求13所述的方法，其中在所述集线器中自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用包括至少一个：
在所述集线器中电力地感测到所述分布式天线单元的连接；以及
在所述集线器中机械地感测到所述分布式天线单元的连接。
16. 根据权利要求10所述的方法，还包括：在所述集线器中使用所述可重新配置的交换机来选择性地将所述第二接口的上行端口中的一个或多个路由到所述第一接口的上行端口中的一个或多个。
17. 根据权利要求10所述的方法，其中从所述基站发射的所述多个下行信号包括多输入多输出（MIMO）下行信号；并且其中所述上行信号包括多输入多输出（MIMO）上行信号。
18. 一种用于在分布式天线系统中使用的多端口集线器，其包括：
用于连接到基站的第一接口，所述第一接口包括用于从所述基站接收下行信号的多个下行端口和用于将上行信号发送到所述基站的多个上行端口；以及
用于连接到多个分布式天线单元的第二接口，所述第二接口包括用于将下行信号发送到所述多个分布式天线单元的多个下行端口和用于从所述多个分布式天线单元接收上行信号的多个上行端口；和
可重新配置的交换机，其选择性地将所述第一接口的一个或多个下行端口路由到所述第二接口的下行端口中的一个或多个，使得所述多个下行信号中的每一个都由所述分布式天线单元中的一个或多个发射并且每个分布式天线单元仅发射所述下行信号中的一个；并且
其中所述集线器被配置成自动地感测到所述基站的连接以在配置所述可重新配置的交换机时使用；以及
其中所述分布式天线单元中的每一个都位于远离所述集线器的相应位置处。
19. 根据权利要求18所述的多端口集线器，其中所述可重新配置的交换机选择性地将所述第二接口的一个或多个上行端口路由到所述第一接口的上行端口中的一个或多个。
20. 根据权利要求18所述的多端口集线器，其中所述集线器被配置成自动地感测到所述分布式天线单元的连接以在配置所述可重新配置的交换机时使用。
CN201410342556.9A 2007-06-26 2007-11-08 分布式天线通信系统 Expired - Fee Related CN104243004B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/823280 2007-06-26
US11/823,280 US8010116B2 (en) 2007-06-26 2007-06-26 Distributed antenna communications system
CN200780053555A CN101803231A (zh) 2007-06-26 2007-11-08 分布式天线通信系统

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200780053555A Division CN101803231A (zh) 2007-06-26 2007-11-08 分布式天线通信系统

Publications (2)

Publication Number Publication Date
CN104243004A true CN104243004A (zh) 2014-12-24
CN104243004B CN104243004B (zh) 2018-11-13

Family

ID=40161245

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201410342556.9A Expired - Fee Related CN104243004B (zh) 2007-06-26 2007-11-08 分布式天线通信系统
CN200780053555A Pending CN101803231A (zh) 2007-06-26 2007-11-08 分布式天线通信系统

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200780053555A Pending CN101803231A (zh) 2007-06-26 2007-11-08 分布式天线通信系统

Country Status (6)

Country Link
US (3) US8010116B2 (zh)
EP (1) EP2165550A4 (zh)
JP (1) JP5258881B2 (zh)
CN (2) CN104243004B (zh)
CA (1) CA2691504C (zh)
WO (1) WO2009002331A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108271170A (zh) * 2016-12-30 2018-07-10 华为技术有限公司 分布式天线系统、多路信号传输系统及方法
CN110959259A (zh) * 2017-06-14 2020-04-03 索尼公司 自适应天线配置

Families Citing this family (259)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1403065B1 (it) * 2010-12-01 2013-10-04 Andrew Wireless Systems Gmbh Distributed antenna system for mimo signals.
US8396368B2 (en) * 2009-12-09 2013-03-12 Andrew Llc Distributed antenna system for MIMO signals
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
US10200094B2 (en) 2004-04-02 2019-02-05 Rearden, Llc Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems
US8542763B2 (en) 2004-04-02 2013-09-24 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US10187133B2 (en) 2004-04-02 2019-01-22 Rearden, Llc System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US9312929B2 (en) 2004-04-02 2016-04-12 Rearden, Llc System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)
US8654815B1 (en) 2004-04-02 2014-02-18 Rearden, Llc System and method for distributed antenna wireless communications
US9826537B2 (en) 2004-04-02 2017-11-21 Rearden, Llc System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
US10277290B2 (en) 2004-04-02 2019-04-30 Rearden, Llc Systems and methods to exploit areas of coherence in wireless systems
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US10886979B2 (en) 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US9819403B2 (en) 2004-04-02 2017-11-14 Rearden, Llc System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
CN102017553B (zh) 2006-12-26 2014-10-15 大力系统有限公司 用于多信道宽带通信系统中的基带预失真线性化的方法和系统
US8942647B2 (en) * 2010-09-30 2015-01-27 Broadcom Corporation Method and system for antenna switching for 60 GHz distributed communication
US8977219B2 (en) * 2010-09-30 2015-03-10 Broadcom Corporation Method and system for mitigating leakage of a 60 GHz transmitted signal back into an RF input of a 60 GHz device
US9002300B2 (en) * 2010-09-30 2015-04-07 Broadcom Corporation Method and system for time division duplexing (TDD) in a 60 GHZ distributed communication system
US9008593B2 (en) 2010-09-30 2015-04-14 Broadcom Corporation Method and system for 60 GHz distributed communication
US8942645B2 (en) * 2010-09-30 2015-01-27 Broadcom Corporation Method and system for communication via subbands in a 60 GHZ distributed communication system
US8942646B2 (en) * 2010-09-30 2015-01-27 Broadcom Corporation Method and system for a 60 GHz communication device comprising multi-location antennas for pseudo-beamforming
WO2009100396A1 (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 internet protocol backhaul
JP5215101B2 (ja) * 2008-07-08 2013-06-19 株式会社エヌ・ティ・ティ・ドコモ 無線基地局装置及び移動端末装置
US8213401B2 (en) 2009-01-13 2012-07-03 Adc Telecommunications, Inc. Systems and methods for IP communication over a distributed antenna system transport
USRE47466E1 (en) 2009-01-13 2019-06-25 Commscope Technologies Llc Systems and methods for IP communication over a distributed antenna system transport
US8346278B2 (en) * 2009-01-13 2013-01-01 Adc Telecommunications, Inc. Systems and methods for mobile phone location with digital distributed antenna systems
EP2417805B1 (en) * 2009-04-09 2017-09-06 Telefonaktiebolaget LM Ericsson (publ) Filter for an indoor cellular system
US8588614B2 (en) * 2009-05-22 2013-11-19 Extenet Systems, Inc. Flexible distributed antenna system
JP2010278809A (ja) * 2009-05-29 2010-12-09 Samsung Yokohama Research Institute Co Ltd 無線基地局、無線端末、分散アンテナ無線アクセスシステム、及び無線通信方法
US8548330B2 (en) 2009-07-31 2013-10-01 Corning Cable Systems Llc Sectorization in distributed antenna systems, and related components and methods
US9191093B2 (en) * 2009-10-20 2015-11-17 The Regents Of The University Of California Interference management for concurrent transmission in downlink wireless communications
IT1398025B1 (it) * 2010-02-12 2013-02-07 Andrew Llc Distributed antenna system for mimo communications.
DE102010018492B4 (de) 2010-04-28 2011-12-08 Andrew Wireless Systems Gmbh Schnittstellenmodul für eine Einheit eines Antennenverteilsystems sowie Antennenverteilsystem
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
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
US8509850B2 (en) * 2010-06-14 2013-08-13 Adc Telecommunications, Inc. Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization
JP2012015572A (ja) * 2010-06-29 2012-01-19 Hitachi Ltd 階層化された分散アンテナシステム
CN103119865A (zh) * 2010-08-16 2013-05-22 康宁光缆系统有限责任公司 支持远程天线单元之间的数字数据信号传播的远程天线集群和相关系统、组件和方法
CN107682021B (zh) 2010-08-17 2020-02-18 大力系统有限公司 远程地可重新配置的远程无线电头单元
KR102136940B1 (ko) 2010-09-14 2020-07-23 달리 시스템즈 씨오. 엘티디. 원격으로 재구성가능한 분산 안테나 시스템 및 방법
EP2622757B1 (en) 2010-10-01 2018-11-07 CommScope Technologies LLC Distributed antenna system for mimo signals
US9252874B2 (en) 2010-10-13 2016-02-02 Ccs Technology, Inc Power management for remote antenna units in distributed antenna systems
EP2636236A4 (en) * 2010-11-03 2016-06-29 Ericsson Telefon Ab L M RADIO BASE STATION AND METHOD THEREFOR
JP5270648B2 (ja) * 2010-12-08 2013-08-21 株式会社日立製作所 分散アンテナシステム、基地局装置、アンテナ選択制御方法
CN203504582U (zh) 2011-02-21 2014-03-26 康宁光缆系统有限责任公司 一种分布式天线系统及用于在其中分配电力的电源装置
WO2012153352A2 (en) * 2011-05-09 2012-11-15 Centre Of Excellence In Wireless Technology Interference management for a distributed spatial network
JP5484400B2 (ja) * 2011-06-01 2014-05-07 日本電信電話株式会社 無線通信システム及びセル・アンテナ配備パターン最適化装置及びプログラム
JP5689029B2 (ja) * 2011-06-09 2015-03-25 株式会社日立製作所 分散アンテナシステム、分散アンテナ割当方法、基地局装置
KR101971584B1 (ko) * 2011-06-29 2019-04-23 콤스코프 커넥티비티 엘엘씨 진화된 분산 안테나 시스템
WO2013033199A1 (en) 2011-08-29 2013-03-07 Andrew Llc Configuring a distributed antenna system
US9276685B2 (en) * 2011-10-14 2016-03-01 Qualcomm Incorporated Distributed antenna systems and methods of wireless communications for facilitating simulcasting and de-simulcasting of downlink transmissions
US8634323B2 (en) 2011-10-14 2014-01-21 Qualcomm Incorporated Apparatuses and methods for facilitating simulcasting and de-simulcasting with a plurality of base stations
US8688131B2 (en) * 2011-10-14 2014-04-01 Qualcomm Incorporated Apparatus and methods for facilitating simulcasting and de-simulcasting in a distributed antenna system
US9312941B2 (en) * 2011-10-14 2016-04-12 Qualcomm Incorporated Base stations and methods for facilitating dynamic simulcasting and de-simulcasting in a distributed antenna system
MY172058A (en) * 2011-11-07 2019-11-13 Dali Systems Co Ltd Virtualized wireless network
US9270346B2 (en) * 2011-12-02 2016-02-23 Apple Inc. Methods for operating wireless electronic devices in coordinated multipoint transmission networks
KR101156667B1 (ko) 2011-12-06 2012-06-14 주식회사 에이디알에프코리아 통신 시스템의 필터 계수 설정 방법
US8254848B1 (en) 2011-12-09 2012-08-28 At&T Intellectual Property I, Lp Monitoring system for distributed antenna systems
US8699982B2 (en) * 2012-03-27 2014-04-15 Adc Telecommunications, Inc. Systems and methods for implementing a distributed antenna system in a radio frequency integrated circuit
US9603032B2 (en) * 2012-06-14 2017-03-21 Advanced Rf Technologies, Inc. System and method for automatically measuring uplink noise level of distributed antenna system
US9107086B2 (en) 2012-07-20 2015-08-11 Adc Telecommunications, Inc. Integration panel
US9179321B2 (en) * 2012-08-09 2015-11-03 Axell Wireless Ltd. Digital capacity centric distributed antenna system
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10327213B1 (en) 2015-10-01 2019-06-18 Origin Wireless, Inc. Time-reversal communication systems
US10009065B2 (en) 2012-12-05 2018-06-26 At&T Intellectual Property I, L.P. Backhaul link for distributed antenna system
US9113347B2 (en) 2012-12-05 2015-08-18 At&T Intellectual Property I, Lp Backhaul link for distributed antenna system
EP2954715B1 (en) * 2013-02-11 2020-04-08 CommScope Technologies LLC Automatic configuration sub-system for distributed antenna systems
US10488535B2 (en) 2013-03-12 2019-11-26 Rearden, Llc Apparatus and method for capturing still images and video using diffraction coded imaging techniques
US9973246B2 (en) 2013-03-12 2018-05-15 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US9923657B2 (en) 2013-03-12 2018-03-20 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
RU2767777C2 (ru) 2013-03-15 2022-03-21 Риарден, Ллк Системы и способы радиочастотной калибровки с использованием принципа взаимности каналов в беспроводной связи с распределенным входом - распределенным выходом
US9999038B2 (en) 2013-05-31 2018-06-12 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9525524B2 (en) 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
CN103338464B (zh) * 2013-06-26 2016-12-28 华为技术有限公司 通信方法及设备
US11425579B2 (en) 2013-07-09 2022-08-23 Commscope Technologies Llc Signal distribution interface
US9750082B2 (en) 2013-10-07 2017-08-29 Commscope Technologies Llc Systems and methods for noise floor optimization in distributed antenna system with direct digital interface to base station
US8897697B1 (en) 2013-11-06 2014-11-25 At&T Intellectual Property I, Lp Millimeter-wave surface-wave communications
US9209902B2 (en) 2013-12-10 2015-12-08 At&T Intellectual Property I, L.P. Quasi-optical coupler
EP2889957A1 (en) * 2013-12-30 2015-07-01 Clemens Rheinfelder Active antenna system with distributed transceiver system
EP3829122B1 (en) 2014-01-27 2023-08-30 CommScope Technologies LLC Multi-stage isolation sub-system for a remote antenna unit
WO2015116451A1 (en) 2014-01-30 2015-08-06 Commscope Technologies Llc Optimizing power allocation in signal distribution systems using variable and static gains
US9906253B2 (en) 2014-02-27 2018-02-27 Battelle Memorial Institute System and method for reconfiguring RF signals in a multi-input receiver
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US9603096B2 (en) * 2014-08-12 2017-03-21 Kathrein-Werker Kg Distribution system and method for managing power consumption of such a distribution system
US9692101B2 (en) 2014-08-26 2017-06-27 At&T Intellectual Property I, L.P. Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US10063280B2 (en) 2014-09-17 2018-08-28 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
WO2016049002A1 (en) 2014-09-23 2016-03-31 Axell Wireless Ltd. Automatic mapping and handling pim and other uplink interferences in digital distributed antenna systems
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
US9628854B2 (en) 2014-09-29 2017-04-18 At&T Intellectual Property I, L.P. Method and apparatus for distributing content in a communication network
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9503189B2 (en) 2014-10-10 2016-11-22 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9762289B2 (en) 2014-10-14 2017-09-12 At&T Intellectual Property I, L.P. Method and apparatus for transmitting or receiving signals in a transportation system
US9973299B2 (en) 2014-10-14 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
US9627768B2 (en) 2014-10-21 2017-04-18 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9564947B2 (en) 2014-10-21 2017-02-07 At&T Intellectual Property I, L.P. Guided-wave transmission device with diversity and methods for use therewith
US9312919B1 (en) 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
US9577306B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9520945B2 (en) 2014-10-21 2016-12-13 At&T Intellectual Property I, L.P. Apparatus for providing communication services and methods thereof
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
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
US9680670B2 (en) 2014-11-20 2017-06-13 At&T Intellectual Property I, L.P. Transmission device with channel equalization and control and methods for use therewith
US9742462B2 (en) 2014-12-04 2017-08-22 At&T Intellectual Property I, L.P. Transmission medium and communication interfaces and methods for use therewith
US9800327B2 (en) 2014-11-20 2017-10-24 At&T Intellectual Property I, L.P. Apparatus for controlling operations of a communication device and methods thereof
US9654173B2 (en) 2014-11-20 2017-05-16 At&T Intellectual Property I, L.P. Apparatus for powering a communication device and methods thereof
US9461706B1 (en) 2015-07-31 2016-10-04 At&T Intellectual Property I, Lp Method and apparatus for exchanging communication signals
US10009067B2 (en) 2014-12-04 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for configuring a communication interface
US10243784B2 (en) 2014-11-20 2019-03-26 At&T Intellectual Property I, L.P. System for generating topology information and methods thereof
US9544006B2 (en) 2014-11-20 2017-01-10 At&T Intellectual Property I, L.P. Transmission device with mode division multiplexing and methods for use therewith
US9954287B2 (en) 2014-11-20 2018-04-24 At&T Intellectual Property I, L.P. Apparatus for converting wireless signals and electromagnetic waves and methods thereof
US10340573B2 (en) 2016-10-26 2019-07-02 At&T Intellectual Property I, L.P. Launcher with cylindrical coupling device and methods for use therewith
US9997819B2 (en) 2015-06-09 2018-06-12 At&T Intellectual Property I, L.P. Transmission medium and method for facilitating propagation of electromagnetic waves via a core
WO2016098109A1 (en) 2014-12-18 2016-06-23 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)
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)
EP3238352A4 (en) 2014-12-23 2018-08-22 Axell Wireless Ltd. Harmonizing noise aggregation and noise management in distributed antenna system
US10144036B2 (en) 2015-01-30 2018-12-04 At&T Intellectual Property I, L.P. Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium
EP3254421B1 (en) 2015-02-05 2022-05-04 Commscope Technologies LLC Systems and methods for emulating uplink diversity signals
US9876570B2 (en) 2015-02-20 2018-01-23 At&T Intellectual Property I, Lp Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9749013B2 (en) 2015-03-17 2017-08-29 At&T Intellectual Property I, L.P. Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium
US9705561B2 (en) 2015-04-24 2017-07-11 At&T Intellectual Property I, L.P. Directional coupling device and methods for use therewith
US10224981B2 (en) 2015-04-24 2019-03-05 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9948354B2 (en) 2015-04-28 2018-04-17 At&T Intellectual Property I, L.P. Magnetic coupling device with reflective plate and methods for use therewith
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US9490869B1 (en) 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US10679767B2 (en) 2015-05-15 2020-06-09 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US10650940B2 (en) 2015-05-15 2020-05-12 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US10812174B2 (en) 2015-06-03 2020-10-20 At&T Intellectual Property I, L.P. Client node device and methods for use therewith
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US10103801B2 (en) 2015-06-03 2018-10-16 At&T Intellectual Property I, L.P. Host node device and methods for use therewith
US10348391B2 (en) 2015-06-03 2019-07-09 At&T Intellectual Property I, L.P. Client node device with frequency conversion and methods for use therewith
US10154493B2 (en) 2015-06-03 2018-12-11 At&T Intellectual Property I, L.P. Network termination and methods for use therewith
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
US10142086B2 (en) 2015-06-11 2018-11-27 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9608692B2 (en) 2015-06-11 2017-03-28 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9820146B2 (en) 2015-06-12 2017-11-14 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9667317B2 (en) 2015-06-15 2017-05-30 At&T Intellectual Property I, L.P. Method and apparatus for providing security using network traffic adjustments
US9865911B2 (en) 2015-06-25 2018-01-09 At&T Intellectual Property I, L.P. Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium
US9509415B1 (en) 2015-06-25 2016-11-29 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a fundamental wave mode on a transmission medium
US9640850B2 (en) 2015-06-25 2017-05-02 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium
US10341142B2 (en) 2015-07-14 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor
US10205655B2 (en) 2015-07-14 2019-02-12 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array and multiple communication paths
US10033108B2 (en) 2015-07-14 2018-07-24 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference
US10044409B2 (en) 2015-07-14 2018-08-07 At&T Intellectual Property I, L.P. Transmission medium and methods for use therewith
US9853342B2 (en) 2015-07-14 2017-12-26 At&T Intellectual Property I, L.P. Dielectric transmission medium connector and methods for use therewith
US9847566B2 (en) 2015-07-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a field of a signal to mitigate interference
US9836957B2 (en) 2015-07-14 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for communicating with premises equipment
US9722318B2 (en) 2015-07-14 2017-08-01 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US10033107B2 (en) 2015-07-14 2018-07-24 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US9628116B2 (en) 2015-07-14 2017-04-18 At&T Intellectual Property I, L.P. Apparatus and methods for transmitting wireless signals
US10170840B2 (en) 2015-07-14 2019-01-01 At&T Intellectual Property I, L.P. Apparatus and methods for sending or receiving electromagnetic signals
US10148016B2 (en) 2015-07-14 2018-12-04 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array
US10320586B2 (en) 2015-07-14 2019-06-11 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium
US9882257B2 (en) 2015-07-14 2018-01-30 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9793951B2 (en) 2015-07-15 2017-10-17 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US10090606B2 (en) 2015-07-15 2018-10-02 At&T Intellectual Property I, L.P. Antenna system with dielectric array and methods for use therewith
US9608740B2 (en) 2015-07-15 2017-03-28 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9948333B2 (en) 2015-07-23 2018-04-17 At&T Intellectual Property I, L.P. Method and apparatus for wireless communications to mitigate interference
US9749053B2 (en) 2015-07-23 2017-08-29 At&T Intellectual Property I, L.P. Node device, repeater and methods for use therewith
US9871283B2 (en) 2015-07-23 2018-01-16 At&T Intellectual Property I, Lp Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration
US9912027B2 (en) 2015-07-23 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US10784670B2 (en) 2015-07-23 2020-09-22 At&T Intellectual Property I, L.P. Antenna support for aligning an antenna
US9735833B2 (en) 2015-07-31 2017-08-15 At&T Intellectual Property I, L.P. Method and apparatus for communications management in a neighborhood network
US10020587B2 (en) 2015-07-31 2018-07-10 At&T Intellectual Property I, L.P. Radial antenna and methods for use therewith
US9967173B2 (en) 2015-07-31 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9904535B2 (en) 2015-09-14 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for distributing software
US10051629B2 (en) 2015-09-16 2018-08-14 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an in-band reference signal
US10009063B2 (en) 2015-09-16 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal
US10079661B2 (en) 2015-09-16 2018-09-18 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a clock reference
US10136434B2 (en) 2015-09-16 2018-11-20 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel
US10009901B2 (en) 2015-09-16 2018-06-26 At&T Intellectual Property I, L.P. Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations
US9705571B2 (en) 2015-09-16 2017-07-11 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system
US9769128B2 (en) 2015-09-28 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for encryption of communications over a network
US9729197B2 (en) 2015-10-01 2017-08-08 At&T Intellectual Property I, L.P. Method and apparatus for communicating network management traffic over a network
US10074890B2 (en) 2015-10-02 2018-09-11 At&T Intellectual Property I, L.P. Communication device and antenna with integrated light assembly
US9876264B2 (en) 2015-10-02 2018-01-23 At&T Intellectual Property I, Lp Communication system, guided wave switch and methods for use therewith
US9882277B2 (en) 2015-10-02 2018-01-30 At&T Intellectual Property I, Lp Communication device and antenna assembly with actuated gimbal mount
US10355367B2 (en) 2015-10-16 2019-07-16 At&T Intellectual Property I, L.P. Antenna structure for exchanging wireless signals
US10665942B2 (en) 2015-10-16 2020-05-26 At&T Intellectual Property I, L.P. Method and apparatus for adjusting wireless communications
US10051483B2 (en) 2015-10-16 2018-08-14 At&T Intellectual Property I, L.P. Method and apparatus for directing wireless signals
US9912419B1 (en) 2016-08-24 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for managing a fault in a distributed antenna system
US9860075B1 (en) 2016-08-26 2018-01-02 At&T Intellectual Property I, L.P. Method and communication node for broadband distribution
US10291311B2 (en) 2016-09-09 2019-05-14 At&T Intellectual Property I, L.P. Method and apparatus for mitigating a fault in a distributed antenna system
US11032819B2 (en) 2016-09-15 2021-06-08 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a control channel reference signal
US10185849B2 (en) 2016-10-07 2019-01-22 Intermec, Inc. Systems and methods for controlling antennas
US10340600B2 (en) 2016-10-18 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via plural waveguide systems
US10135146B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via circuits
US10135147B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via an antenna
US10374316B2 (en) 2016-10-21 2019-08-06 At&T Intellectual Property I, L.P. System and dielectric antenna with non-uniform dielectric
US9876605B1 (en) 2016-10-21 2018-01-23 At&T Intellectual Property I, L.P. Launcher and coupling system to support desired guided wave mode
US9991580B2 (en) 2016-10-21 2018-06-05 At&T Intellectual Property I, L.P. Launcher and coupling system for guided wave mode cancellation
US10811767B2 (en) 2016-10-21 2020-10-20 At&T Intellectual Property I, L.P. System and dielectric antenna with convex dielectric radome
US10312567B2 (en) 2016-10-26 2019-06-04 At&T Intellectual Property I, L.P. Launcher with planar strip antenna and methods for use therewith
US10224634B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Methods and apparatus for adjusting an operational characteristic of an antenna
US10225025B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Method and apparatus for detecting a fault in a communication system
US10291334B2 (en) 2016-11-03 2019-05-14 At&T Intellectual Property I, L.P. System for detecting a fault in a communication system
US10498044B2 (en) 2016-11-03 2019-12-03 At&T Intellectual Property I, L.P. Apparatus for configuring a surface of an antenna
US10090594B2 (en) 2016-11-23 2018-10-02 At&T Intellectual Property I, L.P. Antenna system having structural configurations for assembly
US10340601B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Multi-antenna system and methods for use therewith
US10340603B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Antenna system having shielded structural configurations for assembly
US10535928B2 (en) 2016-11-23 2020-01-14 At&T Intellectual Property I, L.P. Antenna system and methods for use therewith
US10178445B2 (en) 2016-11-23 2019-01-08 At&T Intellectual Property I, L.P. Methods, devices, and systems for load balancing between a plurality of waveguides
US10305190B2 (en) 2016-12-01 2019-05-28 At&T Intellectual Property I, L.P. Reflecting dielectric antenna system and methods for use therewith
US10361489B2 (en) 2016-12-01 2019-07-23 At&T Intellectual Property I, L.P. Dielectric dish antenna system and methods for use therewith
US10727599B2 (en) 2016-12-06 2020-07-28 At&T Intellectual Property I, L.P. Launcher with slot antenna and methods for use therewith
US9927517B1 (en) 2016-12-06 2018-03-27 At&T Intellectual Property I, L.P. Apparatus and methods for sensing rainfall
US10135145B2 (en) 2016-12-06 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave along a transmission medium
US10326494B2 (en) 2016-12-06 2019-06-18 At&T Intellectual Property I, L.P. Apparatus for measurement de-embedding and methods for use therewith
US10439675B2 (en) 2016-12-06 2019-10-08 At&T Intellectual Property I, L.P. Method and apparatus for repeating guided wave communication signals
US10819035B2 (en) 2016-12-06 2020-10-27 At&T Intellectual Property I, L.P. Launcher with helical antenna and methods for use therewith
US10020844B2 (en) 2016-12-06 2018-07-10 T&T Intellectual Property I, L.P. Method and apparatus for broadcast communication via guided waves
US10382976B2 (en) 2016-12-06 2019-08-13 At&T Intellectual Property I, L.P. Method and apparatus for managing wireless communications based on communication paths and network device positions
US10755542B2 (en) 2016-12-06 2020-08-25 At&T Intellectual Property I, L.P. Method and apparatus for surveillance via guided wave communication
US10694379B2 (en) 2016-12-06 2020-06-23 At&T Intellectual Property I, L.P. Waveguide system with device-based authentication and methods for use therewith
US10637149B2 (en) 2016-12-06 2020-04-28 At&T Intellectual Property I, L.P. Injection molded dielectric antenna and methods for use therewith
US10243270B2 (en) 2016-12-07 2019-03-26 At&T Intellectual Property I, L.P. Beam adaptive multi-feed dielectric antenna system and methods for use therewith
US10168695B2 (en) 2016-12-07 2019-01-01 At&T Intellectual Property I, L.P. Method and apparatus for controlling an unmanned aircraft
US10027397B2 (en) 2016-12-07 2018-07-17 At&T Intellectual Property I, L.P. Distributed antenna system and methods for use therewith
US10389029B2 (en) 2016-12-07 2019-08-20 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system with core selection and methods for use therewith
US10547348B2 (en) 2016-12-07 2020-01-28 At&T Intellectual Property I, L.P. Method and apparatus for switching transmission mediums in a communication system
US9893795B1 (en) 2016-12-07 2018-02-13 At&T Intellectual Property I, Lp Method and repeater for broadband distribution
US10139820B2 (en) 2016-12-07 2018-11-27 At&T Intellectual Property I, L.P. Method and apparatus for deploying equipment of a communication system
US10446936B2 (en) 2016-12-07 2019-10-15 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system and methods for use therewith
US10359749B2 (en) 2016-12-07 2019-07-23 At&T Intellectual Property I, L.P. Method and apparatus for utilities management via guided wave communication
US10916969B2 (en) 2016-12-08 2021-02-09 At&T Intellectual Property I, L.P. Method and apparatus for providing power using an inductive coupling
US10069535B2 (en) 2016-12-08 2018-09-04 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves having a certain electric field structure
US10938108B2 (en) 2016-12-08 2021-03-02 At&T Intellectual Property I, L.P. Frequency selective multi-feed dielectric antenna system and methods for use therewith
US10389037B2 (en) 2016-12-08 2019-08-20 At&T Intellectual Property I, L.P. Apparatus and methods for selecting sections of an antenna array and use therewith
US10103422B2 (en) 2016-12-08 2018-10-16 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10530505B2 (en) 2016-12-08 2020-01-07 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves along a transmission medium
US9998870B1 (en) 2016-12-08 2018-06-12 At&T Intellectual Property I, L.P. Method and apparatus for proximity sensing
US10777873B2 (en) 2016-12-08 2020-09-15 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10411356B2 (en) 2016-12-08 2019-09-10 At&T Intellectual Property I, L.P. Apparatus and methods for selectively targeting communication devices with an antenna array
US10601494B2 (en) 2016-12-08 2020-03-24 At&T Intellectual Property I, L.P. Dual-band communication device and method for use therewith
US9911020B1 (en) 2016-12-08 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for tracking via a radio frequency identification device
US10326689B2 (en) 2016-12-08 2019-06-18 At&T Intellectual Property I, L.P. Method and system for providing alternative communication paths
US9838896B1 (en) 2016-12-09 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for assessing network coverage
US10340983B2 (en) 2016-12-09 2019-07-02 At&T Intellectual Property I, L.P. Method and apparatus for surveying remote sites via guided wave communications
US10264586B2 (en) 2016-12-09 2019-04-16 At&T Mobility Ii Llc Cloud-based packet controller and methods for use therewith
US9973940B1 (en) 2017-02-27 2018-05-15 At&T Intellectual Property I, L.P. Apparatus and methods for dynamic impedance matching of a guided wave launcher
US10298293B2 (en) 2017-03-13 2019-05-21 At&T Intellectual Property I, L.P. Apparatus of communication utilizing wireless network devices
US10339346B2 (en) 2017-06-26 2019-07-02 Intermec, Inc. Systems and methods for a reconfigurable antenna
US10979911B2 (en) * 2018-04-02 2021-04-13 Charter Communications Operating, Llc Dynamic configuration and use of wireless base stations in a network

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1340935A (zh) * 2000-08-28 2002-03-20 Lg电子株式会社 用于自动路由器配置的设备和方法
CN1524390A (zh) * 2001-06-08 2004-08-25 耐克斯特格网络公司 在使用空间分集的无线通信网络内将天线连接至基站的网络和方法
CA2483118A1 (en) * 2003-10-01 2005-04-01 Nec Corporation Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor
CN1734972A (zh) * 2004-07-30 2006-02-15 瑞登有限公司 分布式输入分布式输出无线通信的系统和方法
US20060276227A1 (en) * 2005-06-02 2006-12-07 Qualcomm Incorporated Multi-antenna station with distributed antennas

Family Cites Families (187)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412766B2 (zh) 1971-11-24 1979-05-25
US4183054A (en) 1977-09-30 1980-01-08 Harris Corporation Digital, frequency-translated, plural-channel, vestigial sideband television communication system
US4451916A (en) 1980-05-12 1984-05-29 Harris Corporation Repeatered, multi-channel fiber optic communication network having fault isolation system
NL8203600A (nl) 1982-09-17 1984-04-16 Philips Nv Hoofdeinde en ontvanger voor een signaaldistributiesysteem.
US4691292A (en) 1983-04-13 1987-09-01 Rca Corporation System for digital multiband filtering
DE3318774A1 (de) 1983-05-24 1984-11-29 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur uebertragung von digital codierten analogsignalen
US4628501A (en) 1983-12-29 1986-12-09 The United States Of America As Represented By The Secretary Of The Army Optical communications systems
US4667319A (en) 1985-07-29 1987-05-19 Gte Sprint Communications Corporation Digital repeater with 3-way branching of service channels
CA1250022A (en) 1985-09-18 1989-02-14 Nec Corporation One frequency repeater having interference cancellation capability in a digital radio system
EP0232437B1 (en) 1985-12-04 1990-06-13 International Business Machines Corporation Multiplex interface for a communication controller
GB2197531B (en) * 1986-11-08 1991-02-06 Stc Plc Distributed feedback laser
DE3707244A1 (de) 1987-03-06 1988-09-15 Siemens Ag Verfahren zur digitalen uebertragung von hoerrundfunksignalen
US5682256A (en) 1988-11-11 1997-10-28 British Telecommunications Public Limited Company Communications system
US5193109A (en) 1989-02-06 1993-03-09 Pactel Corporation Zoned microcell with sector scanning for cellular telephone system
CA2008900C (en) 1989-04-04 1998-01-20 Ta-Shing Chu Optical fiber microcellular mobile radio
US4999831A (en) 1989-10-19 1991-03-12 United Telecommunications, Inc. Synchronous quantized subcarrier multiplexer for digital transport of video, voice and data
DE69123674T2 (de) 1990-09-17 1997-04-17 Nec Corp Mobiles Kommunikationssystem
US5212831A (en) 1990-11-28 1993-05-18 Bell Communications Research, Inc. Method and apparatus for autonomous adaptive frequency assignment in TDMA portable radio systems
US5809395A (en) 1991-01-15 1998-09-15 Rogers Cable Systems Limited Remote antenna driver for a radio telephony system
US5802173A (en) 1991-01-15 1998-09-01 Rogers Cable Systems Limited Radiotelephony system
GB2289198B (en) 1991-01-15 1996-01-10 Rogers Cantel Inc A remote antenna driver
US5243598A (en) 1991-04-02 1993-09-07 Pactel Corporation Microcell system in digital cellular
US5321849A (en) 1991-05-22 1994-06-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link based on a detected valve
CA2067637C (en) 1991-07-29 1997-11-18 John Lappington System for distributing radio telephone signals over a cable television network
US5545397A (en) 1991-10-23 1996-08-13 Boron Biologicals, Inc. Contrast agents and compositions for radiological imaging, and radiological imaging method utilizing same
US5461627A (en) 1991-12-24 1995-10-24 Rypinski; Chandos A. Access protocol for a common channel wireless network
CA2058736C (en) 1992-01-03 1995-02-14 Andrew S. Beasley Distributed rf repeater arrangement for wireless telephones
CA2058737C (en) 1992-01-03 1997-03-18 Andrew S. Beasley Rf repeater arrangement with improved frequency reuse for wireless telephones
US5887261A (en) 1992-03-31 1999-03-23 Motorola, Inc. Method and apparatus for a radio remote repeater in a digital cellular radio communication system
US5339184A (en) 1992-06-15 1994-08-16 Gte Laboratories Incorporated Fiber optic antenna remoting for multi-sector cell sites
US5303287A (en) 1992-08-13 1994-04-12 Hughes Aircraft Company Integrated personal/cellular communications system architecture
US5627879A (en) 1992-09-17 1997-05-06 Adc Telecommunications, Inc. Cellular communications system with centralized base stations and distributed antenna units
US5488737A (en) 1992-11-17 1996-01-30 Southwestern Bell Technology Resources, Inc. Land-based wireless communications system having a scanned directional antenna
US5404570A (en) 1992-11-23 1995-04-04 Telefonaktiebolaget L M Ericsson Radio coverage in closed environments
US5351146A (en) * 1993-03-01 1994-09-27 At&T Bell Laboratories All-optical network architecture
AU7173694A (en) 1993-06-25 1995-01-17 Omniplex, Inc. Determination of location using time-synchronized cell site transmissions
US5539730A (en) 1994-01-11 1996-07-23 Ericsson Ge Mobile Communications Inc. TDMA/FDMA/CDMA hybrid radio access methods
US5457557A (en) 1994-01-21 1995-10-10 Ortel Corporation Low cost optical fiber RF signal distribution system
US5519691A (en) 1994-06-03 1996-05-21 At&T Corp. Arrangement for and method of providing radio frequency access to a switching system
US5787344A (en) 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
US5987014A (en) 1994-07-14 1999-11-16 Stanford Telecommunications, Inc. Multipath resistant, orthogonal code-division multiple access system
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US5563606A (en) 1994-10-03 1996-10-08 Motorola, Inc. Dynamic mapping apparatus for mobile unit acquisition and method therefor
US5809419A (en) 1994-12-14 1998-09-15 Motorola, Inc. Method for reducing channel scanning time
US5822324A (en) 1995-03-16 1998-10-13 Bell Atlantic Network Services, Inc. Simulcasting digital video programs for broadcast and interactive services
US5761619A (en) 1995-03-23 1998-06-02 Telefoanktiebolaget Lm Ericsson Distributed telecommunications system
US5631916A (en) 1995-05-01 1997-05-20 Georges; John B. Apparatus and method for optically transmitting electrical signals in the 20-300 gigahertz frequency range
US5708961A (en) 1995-05-01 1998-01-13 Bell Atlantic Network Services, Inc. Wireless on-premises video distribution using digital multiplexing
US5781541A (en) 1995-05-03 1998-07-14 Bell Atlantic Network Services, Inc. CDMA system having time-distributed transmission paths for multipath reception
US5732076A (en) 1995-10-26 1998-03-24 Omnipoint Corporation Coexisting communication systems
IT1281001B1 (it) 1995-10-27 1998-02-11 Cselt Centro Studi Lab Telecom Procedimento e apparecchiatura per codificare, manipolare e decodificare segnali audio.
US6005884A (en) 1995-11-06 1999-12-21 Ems Technologies, Inc. Distributed architecture for a wireless data communications system
US5774789A (en) 1995-12-14 1998-06-30 Allen Telecom Inc. RF communication signal distribution system and method
US6108113A (en) 1995-12-29 2000-08-22 Mci Communications Corporation Method and system for transporting ancillary network data
US6084889A (en) 1996-02-14 2000-07-04 Hitachi, Ltd. ATM multiplexing apparatus, ATM demultiplexing apparatus, and communication network with the apparatus
US5809422A (en) 1996-03-08 1998-09-15 Watkins Johnson Company Distributed microcellular communications system
US6157810A (en) 1996-04-19 2000-12-05 Lgc Wireless, Inc Distribution of radio-frequency signals through low bandwidth infrastructures
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
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
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
US5907544A (en) 1996-05-10 1999-05-25 Rypinski; Chandos A. Hub controller architecture and function for a multiple access-point wireless communication network
US5765097A (en) 1996-05-20 1998-06-09 At & T Corp Shared hybrid fiber-coax network having reduced ingress noise in the upstream channel transmitted via a repeater
US6285881B1 (en) 1996-05-31 2001-09-04 Northern Telecom Ltd. Method and system for quickly finding a control channel in a private cellular system
US5878325A (en) 1996-07-12 1999-03-02 At&T Corp Hybrid fiber-coax system having at least one digital fiber node
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
US5838674A (en) * 1996-07-31 1998-11-17 Telefonaktiebolaget L M Ericsson Circuitry and method for time division multiple access communication system
US5790529A (en) 1996-08-01 1998-08-04 Motorola, Inc. Communications network node with switched channelizer architecture
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US6249252B1 (en) 1996-09-09 2001-06-19 Tracbeam Llc Wireless location using multiple location estimators
FR2753589B1 (fr) 1996-09-17 1998-10-09 Alcatel Espace Relais pour systeme de radiocommunications
US5875179A (en) 1996-10-29 1999-02-23 Proxim, Inc. Method and apparatus for synchronized communication over wireless backbone architecture
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
IL119832A (en) 1996-12-15 2001-01-11 Foxcom Wireless Ltd Wireless communications systems employing optical fibers
GB2320653A (en) 1996-12-23 1998-06-24 Northern Telecom Ltd Mobile Communications Network Using Alternative Protocols
US6034950A (en) 1996-12-27 2000-03-07 Motorola Inc. System packet-based centralized base station controller
IL119972A (en) 1997-01-07 2001-01-28 Foxcom Ltd Satellite distributed television
US5912641A (en) 1997-01-21 1999-06-15 Globalstar L.P. Indoor satellite cellular repeater system
US5883882A (en) 1997-01-30 1999-03-16 Lgc Wireless Fault detection in a frequency duplexed system
AU6052998A (en) 1997-02-03 1998-08-25 Reltec Corporation Distributed ethernet hub
AU732339B2 (en) 1997-02-19 2001-04-12 Next Level Communications Inc. Video, data and telephony gateway
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
US5905943A (en) 1997-04-29 1999-05-18 Globalstar L.P. System for generating and using global radio frequency maps
EP0876073A3 (en) 1997-05-01 2000-03-01 AT&T Corp. Dual-mode telephone for cordless and cellular networks
US5833493A (en) 1997-06-05 1998-11-10 Hung; Kuang Fu DC power connecting cable with errorproof indication
SE9702271D0 (sv) * 1997-06-13 1997-06-13 Ericsson Telefon Ab L M Återanvändning av fysisk kontrollkanal i ett distribuerat cellulärt radiokommunikationssystem
DE19726940C2 (de) 1997-06-25 2002-07-18 Littlefeet Inc Sende- und Empfangsvorrichtung zur Verstärkung der Sendesignale zwischen einer ortsfesten und einer mobilen Sendestation sowie Verfahren zum Betrieb der Kan alerkennungsvorrichtung einer Sende- und Empfangsvorrichtung
WO1999007077A2 (en) 1997-07-31 1999-02-11 Stanford Syncom Inc. Means and method for a synchronous network communications system
US6484012B1 (en) 1997-08-04 2002-11-19 Wireless Facilities, Inc. Inter-band communication repeater system
US6907048B1 (en) 1997-10-14 2005-06-14 Alvarion Israel (2003) Ltd. Method and apparatus for transporting ethernet data packets via radio frames in a wireless metropolitan area network
EP0917370A3 (en) 1997-11-18 2007-10-24 Sony Corporation Signal processing device and method for switching signal processors therefor
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
US6195342B1 (en) 1997-11-25 2001-02-27 Motorola, Inc. Method for determining hand-off candidates in a neighbor set in a CDMA communication system
US6078812A (en) 1997-12-15 2000-06-20 Ericsson Inc. System and method for adaptive channel allocation
US6157659A (en) 1997-12-19 2000-12-05 Nortel Networks Corporation Method of and apparatus for multiplexing and demultiplexing digital signal streams
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
US6374124B1 (en) 1997-12-24 2002-04-16 Transcept, Inc. Dynamic reallocation of transceivers used to interconnect wireless telephones to a broadband network
US6147786A (en) 1998-02-20 2000-11-14 Nokia Telecommunications, Oy Hybrid analog/digital WDM access network with mini-digital optical node
US6198558B1 (en) 1998-04-07 2001-03-06 Nortel Networks Limited Architecture repartitioning to simplify outside-plant component of fiber-based access system
US6768745B1 (en) 1998-04-29 2004-07-27 Zhone Technologies, Inc. Flexible SONET access and transmission system
US6667973B1 (en) 1998-04-29 2003-12-23 Zhone Technologies, Inc. Flexible SONET access and transmission systems
US6421009B2 (en) 1998-05-08 2002-07-16 Peter Suprunov Mobile station position tracking system for public safety
US6222660B1 (en) 1998-06-09 2001-04-24 Tektronix, Inc. Adaptive power supply for avalanche photodiode
US6195385B1 (en) 1998-06-30 2001-02-27 Cisco Systems, Inc. HTU-C clocking from a single source
US6226274B1 (en) 1998-09-24 2001-05-01 Omnipoint Corporation Method and apparatus for multiple access communication
DE69831240T2 (de) 1998-10-15 2006-06-01 Lucent Technologies Inc. Rekonfigurierbares faseroptisches Netzwerk für Drahtlose Übertragung
US6181687B1 (en) 1998-10-22 2001-01-30 International Business Machines Corporation System and a method for continuously adjustable, splitting group, multi-contention resolution in multi-access computer communication systems
US6362908B1 (en) 1998-12-02 2002-03-26 Marconi Communications, Inc. Multi-service adaptable optical network unit
US6850733B2 (en) 1998-12-11 2005-02-01 Freescale Semiconductor, Inc. Method for conveying application data with carrierless ultra wideband wireless signals
US6498936B1 (en) 1999-01-22 2002-12-24 Ericsson Inc. Methods and systems for coding of broadcast messages
US6667991B1 (en) 1999-03-12 2003-12-23 Aware, Inc. Method for synchronizing seamless rate adaptation
US6729929B1 (en) 1999-03-17 2004-05-04 Cisco Systems, Inc. Method and apparatus for controlling wireless networks
US7016308B1 (en) 1999-03-19 2006-03-21 Broadband Royalty Corporation Digital return path for hybrid fiber/coax network
AU4461500A (en) 1999-04-14 2000-11-14 Airnet Communications Corporation Dynamic overflow protection for finite digital word-length multi-carrier transmitter communications equipment
US6556551B1 (en) 1999-05-27 2003-04-29 Lgc Wireless, Inc. Multi-frequency pilot beacon for CDMA systems
FI991284A (fi) 1999-06-04 2000-12-05 Nokia Networks Oy Solukkoradioverkon tukiaseman kanavakonfiguroinnin suorittaminen dynaa misesti
US6917614B1 (en) 1999-09-17 2005-07-12 Arris International, Inc. Multi-channel support for virtual private networks in a packet to ATM cell cable system
US6967966B1 (en) 1999-11-03 2005-11-22 Adc Telecommunications, Inc. Digital return path for hybrid fiber/coax network
WO2001041479A1 (fr) 1999-11-24 2001-06-07 Fujitsu Limited Dispositif de commande de station de base, dispositif radio terminal et systeme de communication radio
US6697603B1 (en) 1999-12-13 2004-02-24 Andrew Corporation Digital repeater
US7072407B2 (en) 2000-01-31 2006-07-04 Brookline Flolmstead Llc Combination power and full duplex data cable
US7302497B2 (en) 2000-02-08 2007-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Using internet protocol (IP) in radio access network
AU2001247819A1 (en) 2000-03-27 2001-10-08 Transcept Opencell, Inc. Multi-protocol distributed wireless system architecture
WO2001084865A1 (en) 2000-04-27 2001-11-08 Lgc Wireless, Inc. Adaptive capacity management in a centralized basestation architecture
US6353600B1 (en) 2000-04-29 2002-03-05 Lgc Wireless, Inc. Dynamic sectorization in a CDMA cellular system employing centralized base-station architecture
WO2004034508A2 (en) 2000-06-08 2004-04-22 Pointred Technologies, Inc. Multibeam antenna for a wireless network
US6704545B1 (en) * 2000-07-19 2004-03-09 Adc Telecommunications, Inc. Point-to-multipoint digital radio frequency transport
US6728514B2 (en) 2000-09-08 2004-04-27 Wi-Lan Inc. Scalable wireless network topology systems and methods
KR100459412B1 (ko) 2000-12-28 2004-12-03 엘지전자 주식회사 디지털 신호 전송장치를 이용한 ｃｄｍａ 광 중계기 수신장치
US6801767B1 (en) 2001-01-26 2004-10-05 Lgc Wireless, Inc. Method and system for distributing multiband wireless communications signals
US6961388B2 (en) 2001-02-01 2005-11-01 Qualcomm, Incorporated Coding scheme for a wireless communication system
US20020128009A1 (en) 2001-02-20 2002-09-12 Erik Boch Transceiver for fixed wireless access network applications
US6771933B1 (en) 2001-03-26 2004-08-03 Lgc Wireless, Inc. Wireless deployment of bluetooth access points using a distributed antenna architecture
CN1159935C (zh) 2001-03-30 2004-07-28 华为技术有限公司 一种提高市区环境下蜂窝移动台定位精度的方法和装置
US20020167954A1 (en) 2001-05-11 2002-11-14 P-Com, Inc. Point-to-multipoint access network integrated with a backbone network
US6826163B2 (en) 2001-06-08 2004-11-30 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
US6826164B2 (en) 2001-06-08 2004-11-30 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
US7127175B2 (en) 2001-06-08 2006-10-24 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
US20020191565A1 (en) * 2001-06-08 2002-12-19 Sanjay Mani Methods and systems employing receive diversity in distributed cellular antenna applications
US6865390B2 (en) 2001-06-25 2005-03-08 Lucent Technologies Inc. Cellular communications system featuring a central radio pool/traffic router
US6586863B2 (en) 2001-06-28 2003-07-01 Samsung Electro-Mechanics Co., Ltd. Rosen type piezoelectric transformer with multiple output electrodes
US20030040335A1 (en) 2001-08-27 2003-02-27 Mcintosh Chris P. Tower top cellular communication devices and method for operating the same
US7117015B2 (en) 2002-10-25 2006-10-03 Intel Corporation, Inc Internet base station
US6895218B2 (en) 2001-10-11 2005-05-17 Sprint Spectrum L.P. Method for in-building distribution using wireless access technology
US7014500B2 (en) 2001-10-16 2006-03-21 Adam Belesimo Testing assembly and method for identifying network circuits
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
JP4052835B2 (ja) * 2001-12-28 2008-02-27 株式会社日立製作所 多地点中継を行う無線伝送システム及びそれに使用する無線装置
JP2003235072A (ja) 2002-02-06 2003-08-22 Ntt Docomo Inc 無線リソース割当て方法、無線リソース割当て装置及び移動通信システム
US7035671B2 (en) 2002-04-08 2006-04-25 Adc Telecommunications, Inc. Method and apparatus for intelligent noise reduction in a distributed communication system
WO2003086005A1 (de) 2002-04-09 2003-10-16 Siemens Aktiengesellschaft Verfahren und anordnung sowie computerprogramm mit programmcode-mitteln und computerprogramm-produkt zur ermittlung einer position einer mobilen kommunikationseinrichtung in einem kommunikationsnetz
US6831901B2 (en) 2002-05-31 2004-12-14 Opencell Corporation System and method for retransmission of data
US6999447B2 (en) 2002-06-26 2006-02-14 Motorola, Inc. VOIP transmitter and receiver devices and methods therefor
WO2004004399A1 (en) 2002-06-28 2004-01-08 Nokia Corporation Location sevice support for distributed bts architecture
JP3980424B2 (ja) 2002-07-03 2007-09-26 本田技研工業株式会社 内燃機関の空燃比制御装置
US7103279B1 (en) 2002-07-15 2006-09-05 Ydi Wireless, Inc. Architecture for wireless transmission of high rate optical signals
US20040037565A1 (en) 2002-08-22 2004-02-26 Robin Young Transport of signals over an optical fiber using analog RF multiplexing
US20040198453A1 (en) 2002-09-20 2004-10-07 David Cutrer Distributed wireless network employing utility poles and optical signal distribution
US6963305B2 (en) 2002-10-02 2005-11-08 Guenther Knapp Electromagnetic coupler system
AU2003274992A1 (en) 2002-10-11 2004-05-04 Widefi, Inc. Reducing loop effects in a wireless local area network repeater
US7477920B2 (en) 2002-10-25 2009-01-13 Intel Corporation System and method for automatically configuring and integrating a radio base station into an existing wireless cellular communication network with full bi-directional roaming and handover capability
US7050786B2 (en) 2002-10-30 2006-05-23 Lockheed Martin Corporation Method and apparatus for locating a wireless device
US6785558B1 (en) 2002-12-06 2004-08-31 Lgc Wireless, Inc. System and method for distributing wireless communication signals over metropolitan telecommunication networks
WO2004059934A1 (en) 2002-12-24 2004-07-15 Pirelli & C. S.P.A. Radio base station receiver having digital filtering and reduced sampling frequency
US7573862B2 (en) 2003-02-06 2009-08-11 Mahdi Chambers System and method for optimizing network capacity in a cellular wireless network
US7274930B2 (en) 2003-02-24 2007-09-25 Autocell Laboratories, Inc. Distance determination program for use by devices in a wireless network
US20050176368A1 (en) 2003-03-07 2005-08-11 Spotwave Wireless Inc. Distributed adaptive repeater system
US7203490B2 (en) 2003-03-24 2007-04-10 Atc Technologies, Llc Satellite assisted push-to-send radioterminal systems and methods
WO2004086730A2 (en) 2003-03-26 2004-10-07 Celletra Ltd. Phase sweeping methods for transmit diversity and diversity combining in bts sector extension and in wireless repeaters
FI20030663A0 (fi) 2003-05-02 2003-05-02 Nokia Corp Antennijärjestely ja tukiasema
KR100547880B1 (ko) 2003-05-20 2006-01-31 삼성전자주식회사 초광대역 통신방식을 이용한 실내 근거리 통신 네트워크시스템
US20050143091A1 (en) 2003-09-02 2005-06-30 Yair Shapira Indoor location identification system
SE526741C2 (sv) * 2003-10-02 2005-11-01 Ericsson Telefon Ab L M Positionsbestämning av mobilstationer
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
US20050157675A1 (en) 2004-01-16 2005-07-21 Feder Peretz M. Method and apparatus for cellular communication over data networks
US10417298B2 (en) 2004-12-02 2019-09-17 Insignio Technologies, Inc. Personalized content processing and delivery system and media
WO2005109920A2 (en) 2004-05-05 2005-11-17 Nextg Networks Wireless networks frequency reuse distance reduction
US7289972B2 (en) 2004-06-25 2007-10-30 Virginia Tech Intellectual Properties, Inc. Cognitive radio engine based on genetic algorithms in a network
US7596352B2 (en) 2004-08-23 2009-09-29 Samsung Electronics Co., Ltd. Apparatus and method for channel estimation and echo cancellation in a wireless repeater
US20060072602A1 (en) 2004-10-05 2006-04-06 Cisco Technology, Inc. Method and apparatus for least congested channel scan for wireless access points
US7313415B2 (en) 2004-11-01 2007-12-25 Nextg Networks, Inc. Communications system and method
US7205864B2 (en) 2004-11-02 2007-04-17 Nextg Networks, Inc. Distributed matrix switch
US7539175B2 (en) 2004-11-19 2009-05-26 The Trustees Of Stevens Institute Of Technology Multi-access terminal with capability for simultaneous connectivity to multiple communication channels
US7474627B2 (en) 2004-12-17 2009-01-06 Nortel Networks Limited Voice over internet protocol (VoIP) call admission and call regulation in a wireless 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
US8873585B2 (en) * 2006-12-19 2014-10-28 Corning Optical Communications Wireless Ltd Distributed antenna system for MIMO technologies
US7787836B2 (en) * 2007-03-12 2010-08-31 Intel Corporation Multiple radios communication device and a method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1340935A (zh) * 2000-08-28 2002-03-20 Lg电子株式会社 用于自动路由器配置的设备和方法
CN1524390A (zh) * 2001-06-08 2004-08-25 耐克斯特格网络公司 在使用空间分集的无线通信网络内将天线连接至基站的网络和方法
CA2483118A1 (en) * 2003-10-01 2005-04-01 Nec Corporation Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor
CN1734972A (zh) * 2004-07-30 2006-02-15 瑞登有限公司 分布式输入分布式输出无线通信的系统和方法
US20060276227A1 (en) * 2005-06-02 2006-12-07 Qualcomm Incorporated Multi-antenna station with distributed antennas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108271170A (zh) * 2016-12-30 2018-07-10 华为技术有限公司 分布式天线系统、多路信号传输系统及方法
CN108271170B (zh) * 2016-12-30 2020-11-27 华为技术有限公司 分布式天线系统、多路信号传输系统及方法
CN110959259A (zh) * 2017-06-14 2020-04-03 索尼公司 自适应天线配置
US11134395B2 (en) 2017-06-14 2021-09-28 Sony Group Corporation Adaptive antenna configuration

Also Published As

Publication number Publication date
US8229497B2 (en) 2012-07-24
CA2691504A1 (en) 2008-12-31
US8010116B2 (en) 2011-08-30
US20110244785A1 (en) 2011-10-06
US8532698B2 (en) 2013-09-10
JP5258881B2 (ja) 2013-08-07
US20120258657A1 (en) 2012-10-11
EP2165550A4 (en) 2014-06-18
CN101803231A (zh) 2010-08-11
WO2009002331A1 (en) 2008-12-31
EP2165550A1 (en) 2010-03-24
CN104243004B (zh) 2018-11-13
US20090005096A1 (en) 2009-01-01
CA2691504C (en) 2016-07-05
JP2010532630A (ja) 2010-10-07

Similar Documents

Publication Publication Date Title
CN104243004A (zh) 分布式天线通信系统
EP3540959B1 (en) Multiway switch, radio frequency system, and wireless communication device
EP2186206B1 (en) System for and method of configuring distributed antenna communications system
US7574236B1 (en) System and method of operating an antenna in MIMO and beamforming modes
EP1919233B1 (en) Flexible sectorization in wireless communication systems
CN108462506A (zh) 多路选择开关及相关产品
US20030114103A1 (en) Repeater for use in a wireless communication system
EP3540952B1 (en) Multiway switch, radio frequency system, and wireless communication device
CN108923790A (zh) 多路选择开关、射频系统和无线通信设备
JP2010532630A5 (zh)
CN108880602A (zh) 多路选择开关以及相关产品
JP2021511724A (ja) マルチウェイスイッチ、無線周波数システム、および通信装置
CN106253938A (zh) 用于天线同步和选择的设备和方法
CN103238274A (zh) 双模式基站
WO2015113684A1 (en) Method for transmitting data between a user equipment and a base station in a wireless radio network
CN104639217A (zh) 天线系统、天线和基站
CN102281639B (zh) 数据传输方法
KR20190058057A (ko) 밀리미터파 기반의 인빌딩 릴레이 동작 방법 및 장치
CN101110625A (zh) 一种双天线无线数字中继装置、工作方法和帧结构
CN1874572A (zh) 单个三频带内置天线的设备
US7190973B1 (en) Method for reconfiguring base station equipment to relieve blocking in a heavily utilized cell sector
KR100936000B1 (ko) 다중입력 다중출력 기반의 인-빌딩 ｒｆ 시스템 및 방법,그리고 이에 적용되는 장치
KR20130051390A (ko) 신호 처리 시스템 및 그 방법
CN102195694A (zh) 无线基站装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181113

CF01 Termination of patent right due to non-payment of annual fee