公开(公告)号：US20110243554A1

公开(公告)日：2011-10-06

申请号：US13072112

申请日：2011-03-25

申请人： MASAO NIIBE ,  MASAHIKO MIZUTANI ,  SHINYA FUJIOKA

发明人： MASAO NIIBE ,  MASAHIKO MIZUTANI ,  SHINYA FUJIOKA

IPC分类号： H04B17/00

CPC分类号： H04B10/0793

摘要： When a neighbor ONU receives a signal with light intensity high enough to secure communication between an OLT and a remote ONU, the light intensity may be excessively high to damage a receiver of the neighbor ONU. In order to avoid such a problem, each ONU is notified of a downstream signal transmission plan (downstream light intensity map) prior to transmission of a downstream signal. Each ONU receives the downstream light intensity map (light intensity transmission schedule of downstream signal) in advance. Thus, the neighbor ONU can block or attenuate an optical signal addressed to the remote ONU, and the remote ONU can determine normal operation even when the remote ONU cannot receive a signal addressed to the neighbor ONU. Thus, the remote ONU can be prevented from issuing a wrong error signal.

摘要翻译： 当邻居ONU接收到具有足够高的光强度以保证OLT和远程ONU之间的通信的信号时，光强度可能过高而损坏相邻ONU的接收机。 为了避免这样的问题，在发送下行信号之前，向各ONU通知下行信号发送规划（下行光强度图）。 每个ONU预先接收下游光强度图（下游信号的光强度传输调度）。 因此，邻居ONU可以阻塞或衰减寻址到远程ONU的光信号，并且即使当远程ONU不能接收到寻址到相邻ONU的信号时，远程ONU也可以确定正常操作。 因此，可以防止远程ONU发出错误的错误信号。