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1. 发明授权

US11881891B2 Optical line terminal and an optical network unit 有权
公开(公告)号：US11881891B2
公开(公告)日：2024-01-23
申请号：US17481389
申请日：2021-09-22
申请人： Nokia Solutions and Networks Oy
发明人： Bart Pauwels , Michael Fivez , Carl Mertens , Koenraad Schelfhout , Werner Van Hoof
IPC分类号： H04B10/27 , H04B10/07 , H04Q11/00 , H04J14/02
CPC分类号： H04B10/07 , H04B10/27 , H04J14/0245 , H04J14/0247 , H04J14/0249 , H04J14/0252 , H04J2203/0067 , H04Q11/0067 , H04Q2011/0047 , H04Q2011/0064 , H04Q2011/0086
摘要： Example embodiments describe an optical line terminal, OLT, configured to perform determining a fragmentation allocation for respective ONUs; and notifying, the respective ONUs, of the fragmentation allocation. Other example embodiments relate to an optical network unit, ONU, configured to perform receiving, from the OLT, fragmentation allocation for fragmenting one or more packets; processing the packets in accordance with the fragmentation allocation to obtain fragmented and unfragmented packets; and forwarding, to the OLT, the fragmented and unfragmented packets in accordance with the dynamic upstream allocation map.

2. 发明授权

US11825249B2 Systems and methods for measurement of optical parameters in an optical network 有权
公开(公告)号：US11825249B2
公开(公告)日：2023-11-21
申请号：US18054168
申请日：2022-11-10
申请人： Verizon Patent and Licensing Inc.
发明人： Denis A. Khotimsky , Wenjia Wang
IPC分类号： H04B10/07 , H04Q11/00 , H04B10/079 , H04J14/02
CPC分类号： H04Q11/0067 , H04Q11/0005 , H04B10/07 , H04B10/079 , H04B10/07955 , H04J14/0235 , H04J14/0249 , H04Q11/0066 , H04Q2011/0079 , H04Q2213/13038
摘要： A method includes determining a first power level by performing a first series of measurements based on a first series of burst transmissions from an optical transmitter of an optical network unit (ONU) in an optical network. Bursts in the first series of burst transmissions include a first modified preamble. A second power level is determined by performing a second series of measurements based on a second series of optical burst transmissions. Bursts in the second series of burst transmissions include a second modified preamble. A first power level (P0) and a second power level (P1) are determined based on the first power level and the second power level and one or more additional parameters associated with transmissions from the optical transmitter are determined based on P0 and P1. Based on the additional parameters, it is determined whether the optical transmitter complies with specifications of the optical network.

3. 发明授权

US11652564B2 Data communications system, optical line terminal, and baseband unit 有权
公开(公告)号：US11652564B2
公开(公告)日：2023-05-16
申请号：US17318334
申请日：2021-05-12
申请人： Huawei Technologies Co., Ltd.
发明人： Lun Zhang , Xifeng Wan , Gang Zheng
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04J14/0239 , H04J14/0223 , H04J14/0249 , H04Q11/0067 , H04J14/0245 , H04Q2011/0064 , H04Q2011/0088
摘要： This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured for the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-ID2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.

4. 发明授权

US10848261B1 Systems and methods for identifying rogue optical network units in optical networks with wavelength-division multiplexing 有权
公开(公告)号：US10848261B1
公开(公告)日：2020-11-24
申请号：US16057453
申请日：2018-08-07
申请人： ADTRAN, Inc.
发明人： Jared Lee Oldacre
IPC分类号： H04B10/079 , H04J14/02 , H04B10/03
CPC分类号： H04J14/0257 , H04B10/03 , H04B10/0795 , H04B10/0799 , H04B10/07957 , H04J14/0245 , H04J14/0249
摘要： A system identifies rogue optical network units (ONUs) on a passive optical network that uses time and wavelength division multiplexing. An optical line terminal (OLT) is configured to recognize the occurrence of errors on the upstream transmission over the network. When those errors reach a predetermined threshold, the OLT attempts to identify potential rogue ONUs by controlling the ONUs to tune to different wavelengths. The OLT first controls the ONUs to transmit on a first wavelength. The OLT then iteratively divides the ONUs into multiple groups, each group being assigned a different wavelength for upstream transmission. The OLT them monitors upstream transmission to determine which group of ONUs is exhibiting rogue behavior. This process is repeated until a small group of ONUs is isolated as a potential rogue. The potentially rogue ONUs are individually analyzed and one or more ONUs is positively identified. The system then tunes the rogue ONUs to one or more isolated channels so as not to interfere with communication by other ONUs.

5. 发明申请

US20190140763A1 CHANNEL ADJUSTMENT METHOD, APPARATUS AND SYSTEM 审中-公开
公开(公告)号：US20190140763A1
公开(公告)日：2019-05-09
申请号：US16097202
申请日：2016-06-21
申请人： ZTE CORPORATION
发明人： LIQUAN YUAN , WEILIANG ZHANG , XINGANG HUANG
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04J14/0249 , H04Q11/0067 , H04Q2011/0086
摘要： A channel adjustment method, apparatus and system. The method includes: an optical line terminal (OLT) receives a channel binding capability parameter reported by an optical network unit (ONU) and supported by the ONU; the OLT determines a channel binding capability parameter of a to-be-bound channel of the ONU according to the channel binding capability parameter, a serving application of the ONU and/or a data transmission state; and the OLT sends, to the ONU, first binding control information carrying the channel binding capability parameter of the to-be-bound channel of the ONU and used for instructing the ONU to adjust the bound channel.

6. 发明申请

US20190123846A1 Enhanced Passive Optical Network 审中-公开
公开(公告)号：US20190123846A1
公开(公告)日：2019-04-25
申请号：US16159285
申请日：2018-10-12
申请人： ADTRAN, Inc.
发明人： Jared Cress
IPC分类号： H04J14/02 , H04J14/08
CPC分类号： H04J14/0249 , H04B10/272 , H04J14/0235 , H04J14/08 , H04Q11/0067 , H04Q2011/0064
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.

7. 发明申请

US20180191456A1 Data Communications System, Optical Line Terminal, and Baseband Unit 审中-公开
公开(公告)号：US20180191456A1
公开(公告)日：2018-07-05
申请号：US15862285
申请日：2018-01-04
申请人： Huawei Technologies Co., Ltd.
发明人： Lun Zhang , Xifeng Wan , Gang Zheng
IPC分类号： H04J14/02
CPC分类号： H04J14/0239 , H04J14/0223 , H04J14/0245 , H04J14/0249 , H04Q11/0067 , H04Q2011/0064 , H04Q2011/0088
摘要： This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured by the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-1D2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.

8. 发明申请

US20150304039A1 SYSTEMS AND METHODS FOR CLIP PREVENTION IN A CATV NETWORK 有权
标题翻译：用于CATV网络中的片段预防的系统和方法
公开(公告)号：US20150304039A1
公开(公告)日：2015-10-22
申请号：US14625601
申请日：2015-02-18
申请人： ARRIS Enterprises, Inc.
发明人： Marcel F. Schemmann , Venkatesh G. Mutalik
IPC分类号： H04B10/2575 , H04B10/29 , H04B10/27 , H04J14/02 , H04B10/50 , H04B10/2507
CPC分类号： H04B10/25751 , H04B10/075 , H04B10/07955 , H04B10/2503 , H04B10/2507 , H04B10/2575 , H04B10/27 , H04B10/272 , H04B10/29 , H04B10/50 , H04B10/516 , H04B10/564 , H04B10/58 , H04J14/02 , H04J14/0221 , H04J14/0232 , H04J14/0235 , H04J14/0249 , H04J14/025 , H04J14/0278 , H04N7/22
摘要： Systems and methods for preventing laser clipping in a CATV network.
摘要翻译：用于在CATV网络中防止激光削波的系统和方法。

9. 发明申请

US20150010305A1 Optical Network Unit (ONU) Wavelength Self-Tuning 有权
标题翻译：光网络单元（ONU）波长自整定
公开(公告)号：US20150010305A1
公开(公告)日：2015-01-08
申请号：US14323641
申请日：2014-07-03
申请人： Futurewei Technologies, Inc.
发明人： Frank J. Effenberger , Huafeng Lin , Lei Zong , Feng Wang
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0005 , H04B10/27 , H04B10/572 , H04J14/02 , H04J14/0249 , H04J14/0282 , H04Q2011/0016 , H04Q2011/0022
摘要： A remote node (RN) comprises a downstream port, a wavelength multiplexer (WM) coupled to the downstream port and comprising ports for passing optical waves, an optical rotator coupled to the WM, and a mirror coupled to the optical rotator, wherein the WM, the optical rotator, and the mirror are part of a wavelength tuning scheme. An apparatus comprises a tunable transmitter, a polarization beam splitter (PBS) coupled to the tunable transmitter, a filter coupled to the PBS, a receiver coupled to the filter, a photodiode (PD) coupled to the PBS, and a processor coupled to the tunable transmitter and the PD. An apparatus comprises a tunable transmitter configured to transmit a first optical wave, a filter configured to receive a first reflected optical wave associated with the first optical wave, and a processor configured to tune the tunable transmitter based on the first reflected optical wave.
摘要翻译：远程节点（RN）包括下游端口，耦合到下游端口的波长多路复用器（WM），并且包括用于传递光波的端口，耦合到WM的光学旋转器和耦合到光学旋转器的反射镜，其中WM ，光旋转器和反射镜是波长调谐方案的一部分。一种装置包括可调谐发射器，耦合到可调谐发射器的偏振分束器（PBS），耦合到PBS的滤波器，耦合到滤波器的接收器，耦合到PBS的光电二极管（PD）以及耦合到PBS的处理器可调谐发射器和PD。一种装置包括被配置为发送第一光波的可调谐发射机，被配置为接收与第一光波相关联的第一反射光波的滤波器，以及被配置为基于第一反射光波来调谐可调谐发射机的处理器。

10. 发明授权

US08755689B2 Method for localizing an optical network termination in an optical access network 有权
标题翻译：用于在光接入网络中定位光网络终端的方法
公开(公告)号：US08755689B2
公开(公告)日：2014-06-17
申请号：US12994801
申请日：2008-05-29
申请人： Maurizio Valvo , Roberto Mercinelli , Paolo Solina
发明人： Maurizio Valvo , Roberto Mercinelli , Paolo Solina
IPC分类号： H04J14/00
CPC分类号： H04Q11/0067 , H04B10/07 , H04B10/272 , H04J14/0226 , H04J14/0227 , H04J14/0247 , H04J14/0249 , H04J14/0282 , H04Q2011/0079 , H04Q2011/009
摘要： A method for localizing an optical network termination in an optical access network including an optical line termination and a number of optical links. The method includes: detecting that the optical network termination is connected to an optical link and retrieving from it a termination identifier univocally identifying the optical network termination, using the termination identifier for retrieving an optical link identifier associated with the termination identifier and univocally identifying a given optical link of the optical links; inducing a change in an optical connection between the optical line termination and the given optical link, thus modifying an optical parameter of first optical signals received at the optical line termination through the given optical link; checking whether second optical signals received at the optical line termination from the optical network termination are affected by the change; and in the affirmative, determining that the optical network termination is connected to the first optical link.
摘要翻译：一种用于定位包括光线路终端和多个光链路的光接入网络中的光网络终端的方法。该方法包括：检测光网络终端是否连接到光链路，并使用终止标识符从终端标识符中单独识别光网络终端，使用终止标识符来检索与终端标识符相关联的光链路标识符，并且单向地识别给定的光链路的光链路; 引起光线路终端与给定光链路之间的光连接的变化，从而修改通过给定光链路在光线路终端接收的第一光信号的光参数; 检查在光网络终端处接收的第二光信号是否受到光网络终端的影响; 并且肯定地，确定光网络终端连接到第一光链路。

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