Zte Corporation

Nokia Solutions and Networks Oy

Xi'an Zhongxing New Software Co., Ltd.

Zte (usa) Inc.

Nokia Technologies Oy

Zte Corpopration

Dan Geng

Weiliang Zhang

Liquan Yuan

Yong Guo

Zhuang Ma

Xingang Huang

Dezhi Zhang

Mingsheng Li

Songlin Zhu

Yongjia Yin

Denis Andreyevich Khotimsky

Chenhui Ye

Werner Van Hoof

LiQuan Yuan

Dongxu Zhang

Lifei Sun

Jian Li

Zheng Liu

Lei Li

Liang Cheng

Jie Su

DeZhi Zhang

Dawei Wang

Marek Hajduczenia

Jun Shan Wey

Biao Chen

Jinsong Bei

Wu Chen

Zian He

Lina Guo

Jiabao Zou

Shenping Guo

In response to a first channel associated with a first OLT and a second channel associated with a second OLT being enabled for target traffic, a traffic scheduler for scheduling the target traffic is determined by the first OLT. The first channel and the second channel correspond to a first wavelength and a second wavelength, respectively. The first OLT transmits channel configurations and offset information to an ONU, based on scheduling of a first group of data units and a second group of data units of the target traffic by the traffic scheduler on the first channel and the second channel, respectively. The channel configurations indicate channel identifications associated with the first channel and the second channel, and the offset information indicates timing information of the first group of data units and the second group of data units corresponding to physical frames transmitted on the first and second channels.

Method, device and computer readable storage medium implemented in an optical network

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.

Data processing method and apparatus for passive optical network system, and passive optical network system

A method of communication includes notify, by an optical line terminal (OLT), an optical network unit (ONU) a first time period assigned to a first power saving operation and a second time period assigned to a second power saving operation, and perform, by the OLT, the second power saving operation for a receiver of the OLT during the second time period and the first power saving operation for a transmitter of the OLT during the first time period.

Power saving mechanisms for high speed passive optical network

Embodiments of the present disclosure relate to methods, optical line terminals (OLTs), optical network units (ONUs), apparatuses and computer storage media for transmitting a time synchronization message. In some example embodiments, the OLT is configured to: determine a threshold rate to be N messages per second for transmission of a time synchronization message to an ONU, wherein N being greater than or equal to 0.1; and transmit, to the ONU, a time synchronization message at the threshold rate or a rate above the threshold rate, to enable the ONU to perform time synchronization with the OLT. In some other example embodiments, the OLT is configured to: select a plurality of ONUs for transmitting time synchronization information; and transmit, to the ONUs, a broadcast or multicast message the time synchronization information, to enable the plurality of ONUs to perform time synchronization with the OLT.

Methods, devices, apparatuses and computer storage media for transmission of a time synchronization message

Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of ONU activation for OLT Equalizer training. The method includes determining, at OLT, configuration information indicating a bandwidth allocation dedicated for an ONU and a first target preamble sequence associated with the bandwidth allocation, the first target preamble sequence to be used by the ONU for a transmission from the ONU to the OLT on a first wavelength; transmitting the configuration information to the ONU; and receiving the transmission from the ONU from the ONU on the first wavelength, the transmission is performed by the ONU based on the first target preamble sequence.

Devices, methods, apparatuses and computer readable storage media for optical communication

A method for channel management in an optical network unit includes receiving a disable channel action message sent by an optical line terminal, wherein the disable channel action message is used to instruct disabling a first channel of the optical network unit; transferring the state machine of the optical network unit on the first channel from the association substate of the operation state to the pending substate according to the disable channel action message; and turning off the transmitter and/or the receiver on the first channel after a specified time is reached, transferring the state machine from the pending substate of the operation state to the disabling channel status, and starting a timer.

Method, apparatus and system for channel management in passive optical network

Provided are a ranging method and a communication method for an optical network, an Optical Line Terminal (OLT), an Optical Network Unit (ONU), and an optical network system. The OLT sends a broadcast message to the ONU, the broadcast message being used to indicate an uplink bandwidth allocated to the ONU. The OLT opens a quiet window for the ONU in a predetermined region. The OLT receives an uplink signal sent by the ONU at the quiet window.

Ranging method and communication method for optical network, OLT, ONU, and optical network system

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.

Ranging method and registration method for optical network, OLT, ONU, and optical network system

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.

Data transmission method and device

A data processing method and apparatus for a Passive Optical Network (PON) system and a PON system, the method including: 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.

A ranging method for an optical network, an OLT, an ONU, and an optical network system are provided. The OLT sends a bandwidth allocation message to the ONU; an OLT receiving a response message sent by an ONU in a first sending mode, wherein the first sending mode comprises sending power and a transmission rate; and the OLT performs ranging on the ONU according to the response message.

Ranging method for optical network, OLT, ONU, and optical network system

A method and a device for establishing channels for PON are disclosed. The method is applied to an ONU side and comprises: sending, after receiving a registration message sent from an OLT, a message responding to the registration message to the OLT, wherein the message responding to the registration message includes first parameter information for defining self uniqueness or includes combined information composed of self-first parameter information and second parameter information configured by the OLT, and the first parameter information and the combined information is used for defining a binding relationship for establishing multiple channels with the OLT; and completing the establishment of channels according to a channel use command sent from the OLT, wherein the channel use command comprises multiple pieces of channel identification information allocated by the OLT.

PON channel establishment method, ONU, OLT and system

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.

Method for managing ONU in passive optical network, OLT and system

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.

Data transmission method, data receiving method, optical line terminal and optical network unit

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.

Growing community of inventors

Shenzhen, China

Dan Geng