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    • 8. 发明公开
    • POWER-SAVING COMMUNICATION SYSTEM HAVING LEAKY TRANSMISSION LINES AND AMPLIFIERS TO EXTEND WIRELESS COVERAGE AND POWER CONTROL UNIT INCLUDED THEREIN
    • 与扩大无线覆盖,并在其中电源控制单元泄漏END传输线和放大器节能通信系统
    • EP2987249A1
    • 2016-02-24
    • EP13882317.4
    • 2013-04-19
    • Telefonaktiebolaget LM Ericsson (publ)
    • LIU, Yang
    • H04B5/02
    • H04Q9/00H01P1/24H01Q1/3225H01Q13/20H01Q13/206H03G3/20H04Q2209/883H04W16/18H04W52/0203H04W52/143H04W52/283Y02D70/00
    • The present disclosure discloses a communication system and a power control unit included therein. The communication system comprises a signal source, one or more amplifiers, one or more terminators and leaky transmission lines. The signal source is configured to provide communication signals. The one or more amplifiers are configured to amplify incoming communication signals. The one or more terminators configured to terminate communication signals. The leaky transmission lines are disposed in correspondence with sections of a elongated area and connect the signal source to each of the one or more terminators via at least one of the amplifiers. The communication system further comprises sensors and the power control unit. Each of the sensors is positioned in correspondence with one of the amplifiers and the terminators and configured to sense whether a vehicle approaches said one of the amplifiers and the terminators. The power control unit is configured to receive sensing results from the sensors and to control each of the amplifiers to amplify its incoming communication signals to a normal power level Pnormal or a power level lower than Pnormal based on the received sensing results.
    • 本公开盘松动的通信系统和其中包含的电源控制单元。 该通信系统包括一个信号源,一个或多个放大器,一个或多个终止子和漏泄传输线。 信号源被配置为提供通信信号。 所述一个或多个放大器被配置为放大输入的通信信号。 所述一个或多个终止子配置为终止通信信号。 该漏泄传输线被布置在对应于一个细长的区域的部分和信号源经由所述放大器中的至少一个连接到每个所述一个或多个终止子。 所述通信系统还包括传感器和所述电力控制单元。 每个传感器被定位在对应于放大器和终止子的一个,并且被配置为感测车辆是否接近所述放大器和终止子中的一个。 功率控制单元被配置为接收来自传感器的感测结果,并控制每个放大器给其输入的通信信号放大到一个正常功率电平Pnormal或基于所接收的感测结果的功率电平比Pnormal低。