公开(公告)号：US11366808B2

公开(公告)日：2022-06-21

申请号：US16663050

申请日：2019-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bing Zhou ,  Wenwei Xue ,  Ting Yu Cliff Leung ,  Tao Li

IPC: G06F16/245 ,  G06F16/28 ,  G06F16/21 ,  G06F16/2452 ,  G06F16/2455 ,  G06F16/2453

Abstract: A query processing method includes decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal data source feature library of a query engine, and the internal data source feature library is stored in cache space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user. A data source registration method and a query engine is further disclosed.

公开(公告)号：US09112799B2

公开(公告)日：2015-08-18

申请号：US13898376

申请日：2013-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zhou ,  Jingyuan Wang ,  Jiangtao Wen ,  Zixuan Zou

IPC: H04L12/807 ,  H04L12/801 ,  H04L12/825 ,  H04L12/835 ,  H04L29/06

CPC classification number: H04L47/27 ,  H04L47/11 ,  H04L47/25 ,  H04L47/30 ,  H04L69/163

Abstract: Embodiments of the present invention disclose a network packet loss processing method and apparatus. The method in the present invention includes: comparing a value of a current congestion window of a network with a buffer threshold when a packet loss event is detected, where the buffer threshold is used to indicate a data bearing capability of the entire network, where the data bearing capability is obtained by adding a data bearing capability of a link in the network and a data bearing capability of a buffer of a node in the network; if the value of the current congestion window is smaller than the buffer threshold, not performing backoff processing on the current congestion window; and if the value of the current congestion window is greater than or equal to the buffer threshold, performing backoff processing on the current congestion window.

Abstract translation: 本发明的实施例公开了网络丢包处理方法和装置。 本发明的方法包括：当检测到分组丢失事件时，将网络的当前拥塞窗口的值与缓冲器阈值进行比较，其中缓冲器阈值用于指示整个网络的数据承载能力，其中 通过在网络中添加链路的数据承载能力和网络中的节点的缓冲器的数据承载能力来获得数据承载能力; 如果当前拥塞窗口的值小于缓冲器阈值，则不对当前拥塞窗口执行回退处理; 并且如果当前拥塞窗口的值大于或等于缓冲器阈值，则对当前拥塞窗口执行退避处理。

公开(公告)号：US20140198651A9

公开(公告)日：2014-07-17

申请号：US13898376

申请日：2013-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zhou ,  Jingyuan Wang ,  Jiangtao Wen ,  Zixuan Zou

IPC: H04L12/807

CPC classification number: H04L47/27 ,  H04L47/11 ,  H04L47/25 ,  H04L47/30 ,  H04L69/163

Abstract: Embodiments of the present invention disclose a network packet loss processing method and apparatus. The method in the present invention includes: comparing a value of a current congestion window of a network with a buffer threshold when a packet loss event is detected, where the buffer threshold is used to indicate a data bearing capability of the entire network, where the data bearing capability is obtained by adding a data bearing capability of a link in the network and a data bearing capability of a buffer of a node in the network; if the value of the current congestion window is smaller than the buffer threshold, not performing backoff processing on the current congestion window; and if the value of the current congestion window is greater than or equal to the buffer threshold, performing backoff processing on the current congestion window.

Abstract translation: 本发明的实施例公开了网络丢包处理方法和装置。 本发明的方法包括：当检测到分组丢失事件时，将网络的当前拥塞窗口的值与缓冲器阈值进行比较，其中缓冲器阈值用于指示整个网络的数据承载能力，其中 通过在网络中添加链路的数据承载能力和网络中的节点的缓冲器的数据承载能力来获得数据承载能力; 如果当前拥塞窗口的值小于缓冲器阈值，则不对当前拥塞窗口执行回退处理; 并且如果当前拥塞窗口的值大于或等于缓冲器阈值，则对当前拥塞窗口执行退避处理。

公开(公告)号：US20240214065A1

公开(公告)日：2024-06-27

申请号：US18600540

申请日：2024-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bing Zhou ,  Yangjun Wan ,  Zhihong Jia ,  Kaidi Zhao ,  Hongfei Hu

IPC: H04B10/079

CPC classification number: H04B10/0791 ,  H04B10/0793

Abstract: Embodiments provide a fault locating method for an optical network and a related device to reduce network complexity of fault locating and improve accuracy and efficiency of fault locating in an optical network. The method provides a network management device obtains a first sample set from a first optical network device, where the first sample set includes a plurality of optical powers obtained from the first optical network device sequentially sampling a first optical signal for a plurality of times by the first optical network device in a first fault locating time period, and at least one optical power included in the first sample set is less than or equal to an optical power threshold. The network management device determines a fault type in an optical network based on a change trend of the plurality of optical powers.

公开(公告)号：US11907213B2

公开(公告)日：2024-02-20

申请号：US17833031

申请日：2022-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bing Zhou ,  Wenwei Xue ,  Ting Yu Cliff Leung ,  Tao Li

IPC: G06F16/245 ,  G06F16/28 ,  G06F16/21 ,  G06F16/2452 ,  G06F16/2455 ,  G06F16/2453

CPC classification number: G06F16/24524 ,  G06F16/217 ,  G06F16/24539 ,  G06F16/24545 ,  G06F16/24562 ,  G06F16/284

Abstract: A query processing method including decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal storage space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user.

公开(公告)号：US20130322246A1

公开(公告)日：2013-12-05

申请号：US13898376

申请日：2013-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zhou ,  Jingyuan Wang ,  Jiangtao Wen ,  Zixuan Zou

IPC: H04L12/807

CPC classification number: H04L47/27 ,  H04L47/11 ,  H04L47/25 ,  H04L47/30 ,  H04L69/163

Abstract: Embodiments of the present invention disclose a network packet loss processing method and apparatus. The method in the present invention includes: comparing a value of a current congestion window of a network with a buffer threshold when a packet loss event is detected, where the buffer threshold is used to indicate a data bearing capability of the entire network, where the data bearing capability is obtained by adding a data bearing capability of a link in the network and a data bearing capability of a buffer of a node in the network; if the value of the current congestion window is smaller than the buffer threshold, not performing backoff processing on the current congestion window; and if the value of the current congestion window is greater than or equal to the buffer threshold, performing backoff processing on the current congestion window.

Abstract translation: 本发明的实施例公开了网络丢包处理方法和装置。 本发明的方法包括：当检测到分组丢失事件时，将网络的当前拥塞窗口的值与缓冲器阈值进行比较，其中缓冲器阈值用于指示整个网络的数据承载能力，其中 通过在网络中添加链路的数据承载能力和网络中的节点的缓冲器的数据承载能力来获得数据承载能力; 如果当前拥塞窗口的值小于缓冲器阈值，则不对当前拥塞窗口执行回退处理; 并且如果当前拥塞窗口的值大于或等于缓冲器阈值，则对当前拥塞窗口执行退避处理。