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    • 1. 发明申请
    • METHODS AND PRODUCTS FOR ONU START-UP PROCEDURE
    • WO2019076943A1
    • 2019-04-25
    • PCT/EP2018/078327
    • 2018-10-17
    • NOKIA SOLUTIONS AND NETWORKS OY
    • BONK, RenePOEHLMANN, WolfgangBORKOWSKI, Robert
    • H04Q11/00
    • H04Q11/0067H04Q2011/0064
    • The present invention discloses a method in an Optical Line Terminal, OLT, of assisting a first Optical Network Unit, ONU, starting up a communication with the OLT, the OLT being communicatively coupled to the first ONU that is not yet in operation and a first number of ONUs that are already in operation, wherein, the first number is a natural number; the method comprising: a) assigning to each of the first number of ONUs a time interval within an upstream frame to transmit an upstream burst signal to the OLT; b) transmitting a first indication in a downstream frame to the first ONU, the first indication indicating the first ONU to transmit an interfering burst a first waiting time later after a reference time point; c) receiving an upstream signal comprising burst signals transmitted by the first number of ONUs and the interfering burst transmitted by the first ONU, wherein, the interfering burst introduces errors in burst signals from at least one of the first number of ONUs, and wherein, the burst signals from the at least one of the first number of ONUs are encoded with a forward error correction, FEC, code; d) correcting the errors in the burst signals from the at least one of the first number of ONUs based on the FEC code; e) assigning a time slot to the first ONU in the upstream frame, and determining a target time of reception (t 1 ) of a data burst from the first ONU within the time slot; f) determining a time delay between the target time of reception (t 1 ) and an actual time of reception (t 2 ) of the interfering burst from the first ONU, wherein, the actual time of reception (t 2 ) is determined by locating the errors introduced by the interfering burst from the first ONU; g) transmitting an adjustment information in a downstream frame to the first ONU, the adjustment information indicating the time slot assigned to the first ONU in the upstream frame and indicating the first ONU to transmit a data burst based on the time delay determined in step f); h) receiving a data burst transmitted by the first ONU in the time slot.
    • 5. 发明申请
    • TELECOMMUNICATIONS ACCESS NETWORK
    • 电信接入网络
    • WO2017167915A1
    • 2017-10-05
    • PCT/EP2017/057603
    • 2017-03-30
    • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    • AL RAWI, AnasHUMPHREY, LeslieMORSMAN, Trevor
    • H04Q11/00H04L12/28
    • H04Q11/0071H04L12/423H04Q11/0067H04Q2011/0045H04Q2011/0049H04Q2011/0088H04Q2011/0096
    • A telecommunications access network comprises a primary aggregation point (20) in the form of an exchange (20), a plurality of optic fibre to metallic pair interface aggregation points (40a-40c) which may be in the form of Distribution Point Units (DPUs) each of which is connected to the primary aggregation point (20) by a respective optical fibre connection (31a-21a, 31b-21a, 31c-21b, 31d-21b), and a plurality of terminating devices (50a-50h) which may be in the form of customer premises equipment (cpe) devices, each of which is connected to a respective one of the optic fibre to metallic pair interface aggregation points by a respective twisted metallic pair connection (42a-42h). The access network further includes a plurality of metallic, interface-interface connections (41a-41c) between one or more pairs (40a-40b, 40b-40c, 40c-40d) of the optic fibre to metallic pair interface aggregation points (40a-40d). Each metallic, interface-interface connection preferably comprises (3) or more twisted metallic pairs of wires.
    • 电信接入网络包括交换机(20)形式的主聚合点(20),多个光纤到金属对接口聚合点(40a-40c),其可以处于 通过相应的光纤连接(31a-21a,31b-21a,31c-21b,31d-21b)分别连接到主聚合点(20)的分配点单元(DPU)的形式,以及多个 (CPA)设备形式的终端设备(50a-50h),每个设备通过相应的扭曲金属对连接(42a)连接到光纤到金属对接口聚集点中的相应一个 -42h)。 接入网络还包括光纤的一个或多个对(40a-40b,40b-40c,40c-40d)与金属对接口聚集点(40a-40c)之间的多个金属接口接口连接(41a- 40D)。 每个金属的接口接口连接最好包括(3)或更多的金属对绞线。
    • 8. 发明申请
    • PON WAVELENGTH BONDING FOR HIGH-RATE SERVICES
    • PON波浪焊接高速服务
    • WO2017095749A1
    • 2017-06-08
    • PCT/US2016/063870
    • 2016-11-28
    • ADTRAN, INC.
    • DETWILER, ThomasGOODSON, Richard Lee
    • H04Q11/00H04J14/02
    • H04Q11/0067H04B10/27H04J14/0256H04J14/0282H04Q2011/0064H04Q2011/0088
    • Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, a first frame of data to a first optical network unit (ONU) is transmitted by an optical line terminal (OLT) over a first wavelength. While the first frame of data is being transmitted to the first ONU over the first wavelength, a first portion of a second frame of data to a second ONU is transmitted by the OLT over a second wavelength. After transmission of the first frame of data over the first wavelength has completed and while the first portion of the second frame of data is still being transmitted to the second ONU over the second wavelength, a second portion of the second frame of data to the second ONU is transmitted by the OLT over the first wavelength.
    • 公开了用于无源光网络(PON)波长接合的方法,系统和设备。 在一个方面,到第一光网络单元(ONU)的第一数据帧由光线路终端(OLT)在第一波长上传输。 当第一帧数据在第一波长上被发送到第一ONU时,OLT在第二波长上发送到第二ONU的第二帧数据的第一部分。 在第一波长上的第一数据帧的传输已经完成并且在第二数据帧的第一部分仍然在第二波长上传输到第二ONU的同时,第二数据帧的第二部分传输到第二 OLT通过第一个波长发送ONU。
    • 9. 发明申请
    • UPGRADING PON SYSTEMS USING A MULTI-CYCLE FIELD AWG
    • 使用多周期现场AWG升级PON系统
    • WO2017091353A1
    • 2017-06-01
    • PCT/US2016/061074
    • 2016-11-09
    • GOOGLE INC.
    • DU, LiangZHAO, XiangjunLAM, Cedric, FungWANG, DaoyiJIANG, Changhong, Joy
    • H04Q11/00
    • H04Q11/0067H04J14/0241H04L69/18H04Q11/0005H04Q2011/0016H04Q2011/0032H04Q2011/0079
    • The communication system (100) has first and second optical systems (300a, 300b) and an optical feed fiber (20) in communication with the first optical system and arranged to convey a feeder optical signal (S3) to the second optical system. The first optical system includes a multiplexer multiplexing/demultiplexing between a first optical line terminal (OLT) signal (S1), a second OLT signal (S2), and the feeder optical signal. The feeder optical signal includes the first OLT signal and the second OLT signal. The first OLT signal includes a first upstream free spectral range (B1) and a first downstream free spectral range (B3). The second OLT signal includes a second upstream free spectral range (B2) and a second downstream free spectral range (B4). The second optical system is in communication with the optical feed fiber and multiplexes/demultiplexes between the feeder optical signal and optical network unit signals (US, US1-USn).
    • 通信系统(100)具有第一和第二光学系统(300a,300b)以及与第一光学系统通信并且被布置成传送馈送器光信号(S3)的光馈送光纤(20) )到第二光学系统。 第一光学系统包括在第一光线路终端(OLT)信号(S1),第二OLT信号(S2)和馈线光信号之间的复用器复用/解复用。 馈电器光信号包括第一OLT信号和第二OLT信号。 第一OLT信号包括第一上游自由光谱范围(B1)和第一下游自由光谱范围(B3)。 第二OLT信号包括第二上游自由光谱范围(B2)和第二下游自由光谱范围(B4)。 第二光学系统与光馈送光纤进行通信,并在馈线光信号和光网络单元信号(US,US1-USn)之间进行复用/解复用。