公开(公告)号：US12022249B2

公开(公告)日：2024-06-25

申请号：US17837634

申请日：2022-06-10

Applicant: ZTE Corporation

Inventor： Weiliang Zhang ,  Liquan Yuan ,  Zheng Liu ,  Dan Geng ,  Yong Guo ,  Yongjia Yin

IPC: H04Q11/00 ,  H04L1/00

CPC classification number: H04Q11/0067 ,  H04L1/0083 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0081

Abstract: Provided are a data processing method and apparatus for a Passive Optical Network (PON) system and a PON system. The method includes: a first partial bandwidth is allocated to a first Optical Network Unit (ONU) within a first time window, the first ONU having completed registration and being in a working state; and a first data frame from the first ONU is received within a time corresponding to the first partial bandwidth, and a second data frame from a second ONU is detected within the first time window, the second ONU having not completed registration.

公开(公告)号：US20160006608A1

公开(公告)日：2016-01-07

申请号：US14770799

申请日：2014-02-26

Applicant: ZTE Corporation ,  ZTE (USA) Inc.

Inventor： Denis Andreyevich Khotimsky ,  Dan Geng ,  DeZhi Zhang ,  LiQuan Yuan

IPC: H04L12/24 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04L41/0806 ,  H04J14/0246 ,  H04J14/0256 ,  H04J14/026 ,  H04J14/0272 ,  H04J14/0282 ,  H04J2014/0253 ,  H04Q11/0067 ,  H04Q2011/0079 ,  H04Q2011/0086

Abstract: A multi-wavelength passive optical network (MW-PON) includes an optical distribution network (ODN), a plurality of optical line terminations (OLTs) and an optical network unit (ONU). The ODN includes a trunk fiber, one or more branching elements, and a plurality of distribution fibers. Each OLT is associated with an individual bi-directional wavelength channel using a corresponding single downstream wavelength and a corresponding single upstream wavelength, and supporting a specific downstream line rate and one or more distinct upstream line rates. The ONU is communicatively coupled to a respective distribution fiber, being tunable over a specific range of downstream wavelengths and a specific range of upstream wavelengths, and supporting a specific downstream line rate and a specific upstream line rate. The OLT is configured to assemble a broadcast management message conveying information about bi-directional wavelength channels in said MW-PON system and transmit said message downstream over the associated bi-directional wavelength channel.

Abstract translation: 多波长无源光网络（MW-PON）包括光分配网络（ODN），多个光线路终端（OLT）和光网络单元（ONU）。 ODN包括干纤维，一个或多个分支元件和多个分配纤维。 每个OLT使用相应的单个下游波长和相应的单个上行波长与单个双向波长信道相关联，并且支持特定的下行线路速率和一个或多个不同的上行线路速率。 ONU通信地耦合到相应的分布光纤，可以在特定的下游波长范围和特定的上行波长范围内调节，并且支持特定的下行线路速率和特定的上行线路速率。 OLT被配置为组装传送关于所述MW-PON系统中的双向波长信道的信息的广播管理消息，并且在相关联的双向波长信道上向下游发送所述消息。

公开(公告)号：US10798473B2

公开(公告)日：2020-10-06

申请号：US16465904

申请日：2017-11-16

Applicant: ZTE CORPORATION

Inventor： Weiliang Zhang ,  Mingsheng Li ,  Dan Geng ,  Yong Guo

IPC: H04Q11/00

Abstract: The invention discloses a passive optical network (PON) system and an implementation method thereof. A first transmission channel and a second transmission channel are provided between an optical line terminal (OLT) and an optical network unit (ONU) in the PON system. The method comprises: the ONU transmits data over the first transmission channel; the ONU transmits, over an uplink channel of the second transmission channel, all of uplink management information; or the ONU transmits, over the uplink channel of the second transmission channel, a part of the uplink management information, and transmits, over an uplink channel of the first transmission channel, the remaining uplink management information other than the part of the uplink management information transmitted over the uplink channel of the second transmission channel.

公开(公告)号：US10547921B2

公开(公告)日：2020-01-28

申请号：US16067561

申请日：2016-08-18

Applicant: ZTE CORPORATION

Inventor： Weiliang Zhang ,  Dan Geng

IPC: H04J14/00 ,  H04Q11/00

Abstract: A method for activating an Optical Network Unit (ONU) is provided, where the ONU communicates with an Optical Line Terminal (OLT) through a plurality of paths. The method includes: finding the ONU by the OLT on a path of the plurality of paths; and/or selecting one path from the plurality of paths and performs a ranging on the ONU on the selected path, by the OLT. Through this solution, the OLT finds the ONU and performs ranging on each ONU on only one of the plurality of paths, that is, does not activate each ONU on all paths, thereby quickly completing an activation process of a multi-path PON in a multi-path PON structure and improving work efficiency.

公开(公告)号：US20130148956A1

公开(公告)日：2013-06-13

申请号：US13682705

申请日：2012-11-20

Applicant: ZTE Corporation ,  ZTE (USA) Inc.

Inventor： Denis Andreyevich Khotimsky ,  Dan Geng ,  WeiLiang Zhang

IPC: H04B10/032

CPC classification number: H04B10/032 ,  H04B10/272 ,  H04J3/0682 ,  H04J3/1694 ,  H04Q11/0067 ,  H04Q2011/0081

Abstract: Systems, methods and apparatus for operating an optical network terminal (ONT) in a passive optical network include maintaining an operational state in the passive optical network, estimating an upstream channel, adjusting equalization delay and physical layer frame offset values and switching from a backup mode to a primary mode of operation upon detecting a failure condition.

Abstract translation: 在无源光网络中操作光网络终端（ONT）的系统，方法和装置包括维持无源光网络中的操作状态，估计上行信道，调整均衡延迟和物理层帧偏移值以及从备用模式切换 在检测到故障状况时，进入主要操作模式。

公开(公告)号：US11026002B2

公开(公告)日：2021-06-01

申请号：US16647039

申请日：2018-09-13

Applicant: ZTE CORPORATION

Inventor： Dan Geng ,  Bo Yang ,  Xingang Huang ,  Zhuang Ma ,  Liquan Yuan ,  Weiliang Zhang

IPC: H04B10/00 ,  H04Q11/00 ,  H04J3/06 ,  H04J3/16 ,  H04J14/02 ,  H04J14/00

Abstract: Provided are a method for managing an ONU in a passive optical network, an OLT and a system. The method includes determining a first quiet window and a second quiet window, and allocating the first quiet window to an ONU within a first preset distance range and allocating the second quiet window to an ONU within a second preset distance range, where the distance between the optical line terminal (OLT) and the ONU within the first preset distance range is less than the distance between the OLT and the ONU within the second preset distance range.

公开(公告)号：US10798472B2

公开(公告)日：2020-10-06

申请号：US16347767

申请日：2017-10-23

Applicant: ZTE CORPORATION

Inventor： Dan Geng ,  Weiliang Zhang ,  Liquan Yuan ,  Zhuang Ma

IPC: H04J14/08 ,  H04Q11/00 ,  H04J14/02 ,  H04J14/00

Abstract: A data transmission and reception method and device are provided. The data transmission method includes: determining wavelength channels for data to be transmitted according to received wavelength channel information of an optical network unit (ONU); dividing the data to be transmitted in a sequence according to the number of the wavelength channels to obtain data packets; identifying the data packets according to the division sequence to obtain sequence identifiers of the data packets; and encapsulating the data packets into downstream frames of the wavelength channels in a one-to-one correspondence according to the sequence identifiers of the data packets, and transmitting the downstream frames of the wavelength channels separately to the ONU.

公开(公告)号：US11425475B2

公开(公告)日：2022-08-23

申请号：US17279432

申请日：2019-09-24

Applicant: ZTE Corporation

Inventor： Dan Geng ,  Weiliang Zhang ,  Liquan Yuan ,  Zhuang Ma

IPC: H04Q11/00 ,  H04B10/25 ,  H04L5/00

Abstract: The present disclosure provides a ranging method and a registration method for an optical network, an Optical Line Terminal (OLT), an Optical Network Unit (ONU), and an optical network system. An OLT groups ONUs controlled by the OLT according to receiving optical power values of the ONUs. The OLT allocates corresponding uplink bandwidths to the ONUs in different groups, the uplink bandwidths being used to send registration information by the ONUs to be registered.

公开(公告)号：US11418261B2

公开(公告)日：2022-08-16

申请号：US16491658

申请日：2017-09-05

Applicant: ZTE CORPORATION

Inventor： Weiliang Zhang ,  Yong Guo ,  Xingang Huang ,  Dan Geng

IPC: H04B10/27 ,  H04B10/25 ,  H04Q11/00

Abstract: A data transmission method includes steps described below. An optical line terminal (OLT) divides logical links supported by an optical network unit (ONU) into one or more logical link groups; and the OLT allocates a bandwidth to the logical link group of the ONU, so one or more logical links in the logical link group of the ONU share the bandwidth to transmit data.

公开(公告)号：US10455302B2

公开(公告)日：2019-10-22

申请号：US15118646

申请日：2014-07-23

Applicant: ZTE Corporation

Inventor： Dezhi Zhang ,  Liquan Yuan ,  Weiliang Zhang ,  Dan Geng

IPC: H04Q11/00 ,  H04J14/02

Abstract: The disclosure provides a method and apparatus for adjusting wavelength for an Optical Line Terminal/Optical Network Unit (OLT/ONU). The method for adjusting wavelength for an OLT includes that: a source OLT sends an adjustment notification message to a target OLT, wherein the adjustment notification message is used for indicating that an ONU is to be adjusted into a Time-Wavelength Division Multiplexing Channel (TWDM CH) of the target OLT; and the source OLT receives an adjustment acknowledgement message provided by the target OLT, wherein the adjustment acknowledgement message is used for indicating that an adjustment process of the ONU has been completed. By means of the technical solution provided in the disclosure, an ONU of a source OLT can still work normally after being switched to a channel of a target OLT, thereby achieving the effect that the continuity of a service between the OLT and the ONU may be maintained.