公开(公告)号：WO2013003717A2

公开(公告)日：2013-01-03

申请号：PCT/US2012044916

申请日：2012-06-29

Applicant: LGC WIRELESS LLC ,  STEWART KENNETH A ,  FISCHER LARRY G

Inventor： STEWART KENNETH A ,  FISCHER LARRY G

CPC classification number: H04B7/024 ,  H04B7/022 ,  H04B7/0691 ,  H04B7/0874 ,  H04W88/085

Abstract: One embodiment is directed to a distributed antenna system (DAS) including a host unit and a plurality of remote units. The host unit includes a plurality of base transceiver stations and a switch. Each of the base transceiver stations is configured to provide a downstream baseband digital signal to the switch and to receive an upstream baseband digital signal from the switch, wherein each downstream baseband digital signal and upstream baseband digital signal is a digital representation of the RF channel at baseband of the respective base transceiver station. The switch is configured to route each of the downstream baseband digital signals to a respective subset of the remote units as one or more downstream serial data streams and to route each of the upstream baseband digital signals from one or more upstream serial data streams to a respective subset of the base transceiver stations.

Abstract translation: 一个实施例涉及包括主机单元和多个远程单元的分布式天线系统（DAS）。 主机单元包括多个基站收发台和交换机。 每个基站收发台被配置为向交换机提供下行基带数字信号并从交换机接收上行基带数字信号，其中每个下行基带数字信号和上行基带数字信号是RF信道的数字表示 各个基站的基带。 交换机被配置为将每个下游基带数字信号路由到远程单元的相应子集作为一个或多个下游串行数据流，并将每个上游基带数字信号从一个或多个上游串行数据流路由到相应的 基站收发台的子集。

公开(公告)号：WO2012174047A3

公开(公告)日：2013-04-11

申请号：PCT/US2012042148

申请日：2012-06-13

Applicant: LGC WIRELESS LLC ,  STEWART KENNETH A ,  FISCHER LARRY G

Inventor： STEWART KENNETH A ,  FISCHER LARRY G

IPC: H04B7/06 ,  H04L25/03

CPC classification number: H03F1/3247 ,  H04B1/525 ,  H04L5/1423 ,  H04L25/03343

Abstract: One embodiment is directed to a distributed antenna system comprising a host unit and at least one remote antenna unit that is communicatively coupled to the host unit. The host unit is configured to communicate a downstream transport signal from the host unit to the remote antenna unit. The remote antenna unit to which the downstream transport signal is communicated uses the downstream transport signal to generate a downstream radio frequency signal for radiation from an antenna associated with the remote antenna unit. The remote antenna unit is configured to communicate an upstream transport signal from the remote antenna unit to the host unit, wherein the upstream transport signal is generated from a received upstream radio frequency signal received at the remote antenna unit. The remote antenna unit is configured to perform self-interference suppression processing in an upstream signal path using, as an input thereto, a feedback signal derived from the downstream radio frequency signal radiated from the antenna. Other embodiments are disclosed.

Abstract translation: 一个实施例涉及一种分布式天线系统，其包括主机单元和通信地耦合到主机单元的至少一个远程天线单元。 主机单元被配置为将来自主机单元的下行传输信号传送到远程天线单元。 下行传输信号被传送到的远程天线单元使用下游传输信号来产生用于来自与远程天线单元相关联的天线的辐射的下行射频信号。 所述远程天线单元被配置为将来自所述远程天线单元的上行传输信号传送到所述主机单元，其中所述上行传输信号是从在所述远程天线单元处接收到的接收的上行无线电频率信号产生的。 远程天线单元被配置为使用从天线辐射的下行射频信号导出的反馈信号作为其输入，在上行信号路径中执行自干扰抑制处理。 公开了其他实施例。

公开(公告)号：EP2719093A4

公开(公告)日：2015-04-01

申请号：EP12800117

申请日：2012-06-13

Applicant: LGC WIRELESS LLC

Inventor： STEWART KENNETH A ,  FISCHER LARRY G

IPC: H04B7/06 ,  H03F1/32 ,  H04B1/525 ,  H04L25/03 ,  H04W88/08

CPC classification number: H03F1/3247 ,  H04B1/525 ,  H04L5/1423 ,  H04L25/03343

Abstract: Communication system includes first unit; and second unit(s) having processing unit(s), downstream signal path(s), and upstream signal path(s). First unit communicates downstream digital transport signal (including digital representation of original downstream RF signal received at first unit) to second unit(s). Second unit uses processing unit and downstream signal path to generate downstream RF signal (for radiation from antenna) from downstream digital transport signal; and communicates upstream digital transport signal (generated from upstream RF signal received at second unit(s) using processing unit(s) and upstream signal path(s)) to first unit. Upstream digital transport signal includes digital representation of received upstream RF signal. Feedback path digitizes downstream RF signal(s) to provide digital representation(s) of downstream RF signal radiated from antenna to processing unit(s). Second unit pre-distorts input signal to downstream signal path for non-linearities in downstream signal path using digital representation of downstream RF signal radiated from antenna as received from feedback path.