System and method for extending the range of xDSL services,申请号US20010815840-传众专利搜索

System and method for extending the range of xDSL services

申请公布号：US6829246(B2)

申请号：US20010815840

申请日期：2001.03.23

申请公布日期：2004.12.07

申请人：

RAD DATA COMMUNICATIONS LTD.

发明人：SILBERMAN HUGO;EITANE TSVI (HENRI);STEIN YSAKOV

分类号：H04L12/28;H04Q11/00;(IPC1-7):H04L12/26;H04J3/14;G06F11/00;G08C15/00

主分类号：H04L12/28

摘要：A system and method for extending the distance that xDSL services are able to be provided to subscribers. A DSLAM located at a Central Office is connected to a general-purpose network, such as the Internet. The DSLAM is additionally connected to a first fiber optic transceiver. The first fiber optic transceiver is connected via a fiber optic link to a second fiber optic transceiver located proximate to the subscribers' premises, preferably in a street cabinet. Each subscriber premise's equipment is connected to the broadband transceiver via subscriber lines. Electrical signals to be transmitted between the Central Office and the subscribers' premises are utilized to form a frequency division multiplexed signal. The frequency division multiplexed signal is used to modulate a light subcarrier for transmission across the fiber optic link. At the respective receiving transceiver, the frequency division multiplexed signal is reconverted to the electrical signals, which are then applied to the subscriber premises equipment or DSLAM, depending upon the direction of communication.