公开(公告)号：US20220264203A1

公开(公告)日：2022-08-18

申请号：US17627621

申请日：2020-05-19

Applicant: ZTE CORPORATION

Inventor： Huannan MA ,  Jinshu LU ,  Weiliang ZHANG

IPC: H04Q11/00

Abstract: An optical line terminal (OLT) includes a basic wavelength channel unit and a corresponding extended wavelength channel unit. The basic wavelength channel unit is configured to support a basic wavelength channel and realize discovery and ranging of an optical network unit (ONU) on the basic wavelength channel; establish a first ONU management and control channel (OMCC) with the ONU on the basic wavelength channel, and in response to the ONU supporting an extended wavelength channel and being configured to be in a low delay mode, notify the ONU to switch from the basic wavelength channel to the extended wavelength channel through the first OMCC. The extended wavelength channel unit is configured to support at least one extended wavelength channel and establish a second OMCC with the ONU on the extended wavelength channel to transmit a low delay service.

公开(公告)号：US20170005722A1

公开(公告)日：2017-01-05

申请号：US15114239

申请日：2014-07-22

Applicant: ZTE CORPORATION

Inventor： Jian HUANG ,  Jinshu LU ,  Wenjie HUANG

IPC: H04B10/079 ,  H04B10/27 ,  H04B10/40

CPC classification number: H04B10/0791 ,  H04B10/0795 ,  H04B10/27 ,  H04B10/272 ,  H04B10/40 ,  H04Q11/0067

Abstract: The disclosure provides a method and device for detecting rogue behaviour. The method comprises: for the upstream optical signal of each Passive Optical Network (PON) port, an Optical Line Terminal (OLT) constructs a short timeslot and transmits it via an optical transceiver; the OLT controls the optical transceiver to conduct a first Signal Detect (SD) sampling detection on the upstream optical signal according to the short timeslot to obtain a first detection result; the OLT judges, according to the first detection result, whether the upstream optical signal is valid; if so, the OLT constructs a long timeslot and transmits it via the optical transceiver, and controls the optical transceiver to conduct a second SD sampling detection on the upstream optical signal according to the long timeslot to obtain a second detection result; and the OLT determines, according to the second detection result, whether the current PON port is experiencing rogue behaviour. The disclosure achieves quick and accurate detection without occupying fixed bandwidth, thus maximizing the utilization of the upstream bandwidth.

Abstract translation: 本公开提供了用于检测流氓行为的方法和装置。 该方法包括：对于每个无源光网络（PON）端口的上行光信号，光线路终端（OLT）构建短时隙并通过光收发器进行发送; OLT控制光收发器根据短时隙对上行光信号进行第一次信号检测（SD）采样检测，以获得第一检测结果; OLT根据第一检测结果判断上行光信号是否有效; 如果是，则构成长时隙并通过光收发器进行发送，并控制光收发器根据长时隙对上行光信号进行第二次SD采样检测，以获得第二检测结果; 并且OLT根据第二检测结果确定当前PON端口是否正在经历流氓行为。 本公开实现了快速准确的检测，而不占用固定带宽，从而最大限度地提高了上行带宽的利用率。