公开(公告)号：US11057109B2

公开(公告)日：2021-07-06

申请号：US16360980

申请日：2019-03-21

Applicant: Dali Systems Co. Ltd.

Inventor： Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Wolfgang Weber

IPC: H04B10/2575 ,  H04W52/24 ,  H04W52/28 ,  H04B10/564 ,  H04W52/02 ,  H04W4/029

Abstract: A method for operating a Distributed Antenna System (DAS) includes providing a plurality of Digital Remote Units (DRUs), each configured to send and receive wireless radio signals and providing a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the plurality of DRUs via optical signals and each being coupled to at least one sector of a base station. The method also includes providing a plurality of sensors operable to detect activity at each of the plurality of DRUs, turning off a DRU downlink signal at one of the plurality of DRUs in response to an output from one of the plurality of sensors, and turning on a DRU downlink signal at another of the plurality of DRUs in response to an output from another of the plurality of sensors.

公开(公告)号：US20150256358A1

公开(公告)日：2015-09-10

申请号：US14639418

申请日：2015-03-05

Applicant: Dali Systems Co. Ltd.

Inventor： Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Wolfgang Weber

IPC: H04L25/02 ,  H04W52/24 ,  H04B10/2575 ,  H04W72/04

Abstract: A system for routing signals in a Distributed Antenna System includes a plurality of Digital Multiplexer Units (DMUs). The plurality of DMUs are coupled and operable to route signals between the plurality of DMUs. Each of the plurality of DMUs is operable to receive a digital signal from a base band unit (BBU). The system also includes a plurality of Digital Remote Units (DRUs) coupled to at least one of the plurality of DMUs and operable to transport signals between DRUs and the at least one of the plurality of DMUs.

Abstract translation: 用于在分布式天线系统中路由信号的系统包括多个数字多路复用器单元（DMU）。 多个DMU被耦合并且可操作以在多个DMU之间路由信号。 多个DMU中的每一个可操作以从基带单元（BBU）接收数字信号。 该系统还包括耦合到多个DMU中的至少一个DMU的多个数字远程单元（DRU），并且可操作以在DRU和多个DMU中的至少一个之间传送信号。

公开(公告)号：US20200059299A1

公开(公告)日：2020-02-20

申请号：US16360980

申请日：2019-03-21

Applicant: Dali Systems Co. Ltd.

Inventor： Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Wolfgang Weber

IPC: H04B10/2575 ,  H04B10/564 ,  H04W52/28 ,  H04W52/24

Abstract: A method for operating a Distributed Antenna System (DAS) includes providing a plurality of Digital Remote Units (DRUs), each configured to send and receive wireless radio signals and providing a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the plurality of DRUs via optical signals and each being coupled to at least one sector of a base station. The method also includes providing a plurality of sensors operable to detect activity at each of the plurality of DRUs, turning off a DRU downlink signal at one of the plurality of DRUs in response to an output from one of the plurality of sensors, and turning on a DRU downlink signal at another of the plurality of DRUs in response to an output from another of the plurality of sensors.

公开(公告)号：US10284296B2

公开(公告)日：2019-05-07

申请号：US14621192

申请日：2015-02-12

Applicant: Dali Systems Co. Ltd.

Inventor： Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Wolfgang Weber

IPC: H04W4/029 ,  H04W52/02 ,  H04W52/24 ,  H04W52/28 ,  H04B10/564 ,  H04B10/2575

Abstract: A method for operating a DAS includes providing a set of digital remote units (remotes) operable to send and receive wireless radio signals. Each of the set of remotes is associated with a geographic area. The method also includes providing a digital access unit (host) operable to communicate with the set of remotes, receiving uplink signals at one or more of the set of remotes, and monitoring train activity in the geographic areas. The method further includes increasing a gain coefficient associated with one of the set of remotes in response to determining an increase in monitored train activity, decreasing a gain coefficient associated with another of the set of remotes in response to determining a decrease in monitored train activity, and transmitting, to the host, scaled uplink signals associated with the one of the set of remotes and the another of the set of remotes.

公开(公告)号：US20150304044A1

公开(公告)日：2015-10-22

申请号：US14621192

申请日：2015-02-12

Applicant: Dali Systems Co. Ltd.

Inventor： Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Wolfgang Weber

IPC: H04B10/2575 ,  H04B10/564

CPC classification number: H04B10/25753 ,  H04B10/564 ,  H04W4/029 ,  H04W52/0206 ,  H04W52/245 ,  H04W52/285 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/46

Abstract: A method for operating a DAS includes providing a set of digital remote units (remotes) operable to send and receive wireless radio signals. Each of the set of remotes is associated with a geographic area. The method also includes providing a digital access unit (host) operable to communicate with the set of remotes, receiving uplink signals at one or more of the set of remotes, and monitoring train activity in the geographic areas. The method further includes increasing a gain coefficient associated with one of the set of remotes in response to determining an increase in monitored train activity, decreasing a gain coefficient associated with another of the set of remotes in response to determining a decrease in monitored train activity, and transmitting, to the host, scaled uplink signals associated with the one of the set of remotes and the another of the set of remotes.

Abstract translation: 用于操作DAS的方法包括提供可操作以发送和接收无线电信号的一组数字远程单元（遥控器）。 遥控器中的每一个与地理区域相关联。 该方法还包括提供可操作以与该组遥控器进行通信的数字接入单元（主机），在该组遥控器中的一个或多个远程接收器处接收上行链路信号，以及监视地理区域中的列车活动。 所述方法还包括响应于确定所监视的列车活动的增加而响应于确定所监视的列车活动的减少而减小与所述一组遥控器中的另一组相关联的增益系数，从而增加与所述一组遥控器相关联的增益系数， 以及向所述主机发送与所述一组遥控器中的一个和所述一组遥控器中的另一组相关联的缩放的上行链路信号。