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Patent Agency Ranking
公开(公告)号：US09143311B2
公开(公告)日：2015-09-22
申请号：US13739783
申请日：2013-01-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinrong Yin , Sulin Yang , Shouwen Liu
CPC classification number: H04L7/0075 , H04J3/0638 , H04J3/0667
Abstract: The present disclosure provides a time synchronization method, including: acquiring, by a slave device, a first optical fiber transmission delay from a master device to the slave device, and a second optical fiber transmission delay from the slave device to the master device; exchanging a time synchronization signal with the master device, and calculating an initial time offset; adjusting the initial time offset by using the first optical fiber transmission delay and the second optical fiber transmission delay to obtain a corrected time offset; and adjusting a local clock according to the corrected time offset. Embodiments of the present disclosure further provide a corresponding device and system.
Abstract translation: 本公开提供了一种时间同步方法，包括：由从设备获取从主设备到从设备的第一光纤传输延迟，以及从从设备到主设备的第二光纤传输延迟; 与主设备交换时间同步信号，并计算初始时间偏移量; 通过使用第一光纤传输延迟和第二光纤传输延迟来调整初始时间偏移以获得校正的时间偏移; 以及根据校正的时间偏移来调整本地时钟。 本公开的实施例还提供了相应的设备和系统。
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12.发明申请公开(公告)号：US20190386743A1
公开(公告)日：2019-12-19
申请号：US16552703
申请日：2019-08-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinrong Yin , Dianbo Zhao , Sulin Yang
IPC: H04B10/079 , H04J14/02 , H04B10/40
Abstract: This application discloses a communication method, an optical line terminal, and an optical network unit in a passive optical network system. The PON system includes an OLT and at least one ONU, and the method includes: receiving, by the OLT, a first message that is sent by a first ONU in the at least one ONU through a first upstream channel; determining a first round trip time (RTT) of the first ONU based on a receiving moment of the first message; determining a time window based on the first RTT; sending first indication information to the first ONU through a downstream channel, where the first indication information includes the time window; receiving a second message that is sent by the first ONU through a second upstream channel within the time window; and determining a second RTT of the first ONU based on a receiving moment of the second message.
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公开(公告)号：US20190245644A1
公开(公告)日：2019-08-08
申请号：US16268107
申请日：2019-02-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinrong Yin , Weiyang Wang
CPC classification number: H04J14/04 , G02B6/38 , H04B10/2581 , H04L1/0042 , H04L25/03343 , H04L27/02 , H04L27/367
Abstract: The present disclosure provides a data transmission method including: receiving a first-mode optical signal from a first port corresponding to a first port number; converting, according to a correspondence between the first port number and a first mode group number, the received first-mode optical signal into a second-mode optical signal carried in a first mode group identified by the first mode group number, where the second-mode optical signal carried in the first mode group identified by the first mode group number includes an optical signal in one or more modes; and outputting the second-mode optical signal obtained by means of conversion.
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公开(公告)号：US20170302399A1
公开(公告)日：2017-10-19
申请号：US15640167
申请日：2017-06-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinrong Yin
IPC: H04J14/04 , H04B10/079 , H04Q11/00 , H04B10/2581
CPC classification number: H04J14/04 , H04B10/07953 , H04B10/2581 , H04B10/272 , H04B2210/254 , H04Q11/0066 , H04Q2011/0024 , H04Q2011/0049 , H04W40/24
Abstract: The present disclosure discloses a data transmission method, an apparatus, and a system. The method includes: receiving, by a mode multiplexer from an input port, a first optical signal transmitted by an optical line terminal; converting, according to a correspondence between an input port of an optical signal and a mode of the optical signal, the received first optical signal into a second optical signal in a mode corresponding to the input port; and multiplexing the second optical signal obtained by means of conversion to a few-mode optical fiber for transmission. This increases transmission capacity of a single optical fiber and implements fast expansion of the transmission capacity, thereby improving total bandwidth utilization of a system.
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公开(公告)号：US20130195443A1
公开(公告)日：2013-08-01
申请号：US13739783
申请日：2013-01-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinrong Yin , Sulin Yang , Shouwen Liu
IPC: H04L7/00
CPC classification number: H04L7/0075 , H04J3/0638 , H04J3/0667
Abstract: The present disclosure provides a time synchronization method, including: acquiring, by a slave device, a first optical fiber transmission delay from a master device to the slave device, and a second optical fiber transmission delay from the slave device to the master device; exchanging a time synchronization signal with the master device, and calculating an initial time offset; adjusting the initial time offset by using the first optical fiber transmission delay and the second optical fiber transmission delay to obtain a corrected time offset; and adjusting a local clock according to the corrected time offset. Embodiments of the present disclosure further provide a corresponding device and system.
Abstract translation: 本公开提供了一种时间同步方法，包括：由从设备获取从主设备到从设备的第一光纤传输延迟，以及从从设备到主设备的第二光纤传输延迟; 与主设备交换时间同步信号，并计算初始时间偏移量; 通过使用第一光纤传输延迟和第二光纤传输延迟来调整初始时间偏移以获得校正的时间偏移; 以及根据校正的时间偏移来调整本地时钟。 本公开的实施例还提供了相应的设备和系统。
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