公开(公告)号：US20150023354A1

公开(公告)日：2015-01-22

申请号：US14511431

申请日：2014-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Congqi Li ,  Zhiyong Huang

IPC: H04L12/927 ,  H04L12/741

CPC classification number: H04L47/805 ,  H04L45/02 ,  H04L45/125 ,  H04L45/302 ,  H04L45/42 ,  H04L45/745 ,  H04L47/724 ,  H04L49/205 ,  H04L49/65

Abstract: Embodiments of the present invention provide a method and a device for allocating a packet switching resource, which includes: receiving, by a management plane unit, a service transport request carrying service information, where the service information includes source node information, sink node information, quality of service QoS requirement information, and bandwidth requirement information; determining, by the management plane unit, at least one transport path according to the service information and a preset resource allocation policy, and generating a routing table entry/forwarding table entry according to the at least one transport path; and sending, by the management plane unit, the routing table entry/forwarding table entry to data plane units of packet switching devices of each transport path of the at least one transport path. According to the embodiments, transparent and controllable allocation of a network bandwidth resource is implemented, so that utilization efficiency of a network resource is improved.

Abstract translation: 本发明的实施例提供一种用于分配分组交换资源的方法和装置，包括：由管理平面单元接收携带服务信息的业务传输请求，其中，所述业务信息包括源节点信息，汇聚节点信息， 服务质量QoS要求信息和带宽需求信息; 由所述管理平面单元确定根据所述服务信息和预设资源分配策略的至少一个传输路径，以及根据所述至少一个传输路径生成路由表条目/转发表条目; 以及由所述管理平面单元向所述至少一个传输路径的每个传输路径的分组交换设备的数据平面单元发送所述路由表入口/转发表项。 根据实施例，实现了网络带宽资源的透明可控分配，提高了网络资源的利用效率。

公开(公告)号：US09794192B2

公开(公告)日：2017-10-17

申请号：US14511431

申请日：2014-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Congqi Li ,  Zhiyong Huang

IPC: H04W72/04 ,  H04L12/927 ,  H04L12/931 ,  H04L12/741 ,  H04L12/751 ,  H04L12/725 ,  H04L12/729 ,  H04L12/717 ,  H04L12/913

CPC classification number: H04L47/805 ,  H04L45/02 ,  H04L45/125 ,  H04L45/302 ,  H04L45/42 ,  H04L45/745 ,  H04L47/724 ,  H04L49/205 ,  H04L49/65

Abstract: Embodiments of the present invention provide a method and a device for allocating a packet switching resource, which includes: receiving, by a management plane unit, a service transport request carrying service information, where the service information includes source node information, sink node information, quality of service QoS requirement information, and bandwidth requirement information; determining, by the management plane unit, at least one transport path according to the service information and a preset resource allocation policy, and generating a routing table entry/forwarding table entry according to the at least one transport path; and sending, by the management plane unit, the routing table entry/forwarding table entry to data plane units of packet switching devices of each transport path of the at least one transport path. According to the embodiments, transparent and controllable allocation of a network bandwidth resource is implemented, so that utilization efficiency of a network resource is improved.

公开(公告)号：US09184860B2

公开(公告)日：2015-11-10

申请号：US13691232

申请日：2012-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu Shen ,  Jianmei Zhang ,  Congqi Li

IPC: H04J3/06 ,  H04W56/00 ,  H04J14/02

CPC classification number: H04J3/0658 ,  H04J3/0667 ,  H04J14/0254 ,  H04W56/001

Abstract: The present disclosure discloses a time synchronization method. In the method, a first node sends a first time packet at a first time over a first working wavelength; a second node receives the first time packet at a second time. The first node sends a second time packet at a third time over a second working wavelength. The second node receives the second time packet at a fourth time; calculates an absolute time deviation between the second node and the first node according to the first time, the second time, the third time, the fourth time, a first signal transmission rate corresponding to the first working wavelength, and a second signal transmission rate corresponding to the second working wavelength, and synchronizes the local time between the second node and the first node. Further, a time synchronization system and a node device are disclosed.

Abstract translation: 本公开公开了一种时间同步方法。 在该方法中，第一节点在第一工作波长上首次发送第一时间分组; 第二节点在第二时间接收第一时间分组。 第一节点在第二工作波长上第三次发送第二时间分组。 第二节点在第四时间接收第二时间分组; 根据第一时间，第二时间，第三时间，第四时间，对应于第一工作波长的第一信号传输速率和对应于第一工作波长的第二信号传输速率，计算第二节点和第一节点之间的绝对时间偏差 到第二工作波长，并且同步第二节点和第一节点之间的本地时间。 此外，公开了时间同步系统和节点装置。

公开(公告)号：US08817823B2

公开(公告)日：2014-08-26

申请号：US13735858

申请日：2013-01-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu Shen ,  Jianmei Zhang ,  Congqi Li ,  Tianhai Chang ,  Hao Liu ,  Zhiguo Liu

IPC: H04J3/06 ,  H04J14/02

CPC classification number: H04J3/0602 ,  H04J3/0667 ,  H04J14/0201

Abstract: A method and a device for time synchronization are disclosed according to the embodiments of the present invention. The method includes: selecting, by a slave device, a port of a single-fiber bi-directional line as a synchronization port of a 1588 clock protocol; specifying a work mode of the synchronization port; exchanging a 1588 clock synchronization packet with a master device through the synchronization port according to the work mode; acquiring transmission time information and restore a system clock according to the 1588 clock synchronization packet; and adjusting the system clock according to the work mode and the transmission time information. The device includes: a line processing module, a clock recovery module and a clock adjustment module. Through the method and the device, zero-error time synchronization is implemented; and in the case of unfixed path delay, the time synchronization can also be implemented.

Abstract translation: 根据本发明的实施例公开了一种用于时间同步的方法和装置。 该方法包括：由从设备选择单光纤双向线路的端口作为1588时钟协议的同步端口; 指定同步端口的工作模式; 根据工作模式通过同步端口与主设备交换1588时钟同步报文; 根据1588时钟同步包获取传输时间信息并恢复系统时钟; 并根据工作模式和传输时间信息调整系统时钟。 该设备包括：线路处理模块，时钟恢复模块和时钟调整模块。 通过该方法和设备，实现零错误时间同步; 并且在非固定路径延迟的情况下，也可以实现时间同步。

公开(公告)号：US20130094523A1

公开(公告)日：2013-04-18

申请号：US13691232

申请日：2012-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu Shen ,  Jianmei Zhang ,  Congqi Li

IPC: H04J3/06

CPC classification number: H04J3/0658 ,  H04J3/0667 ,  H04J14/0254 ,  H04W56/001

Abstract: The present disclosure discloses a time synchronization method. In the method, a first node sends a first time packet at a first time over a first working wavelength; a second node receives the first time packet at a second time. The first node sends a second time packet at a third time over a second working wavelength. The second node receives the second time packet at a fourth time; calculates an absolute time deviation between the second node and the first node according to the first time, the second time, the third time, the fourth time, a first signal transmission rate corresponding to the first working wavelength, and a second signal transmission rate corresponding to the second working wavelength, and synchronizes the local time between the second node and the first node. Further, a time synchronization system and a node device are disclosed.

Abstract translation: 本公开公开了一种时间同步方法。 在该方法中，第一节点在第一工作波长上首次发送第一时间分组; 第二节点在第二时间接收第一时间分组。 第一节点在第二工作波长上第三次发送第二时间分组。 第二节点在第四时间接收第二时间分组; 根据第一时间，第二时间，第三时间，第四时间，对应于第一工作波长的第一信号传输速率和对应于第一工作波长的第二信号传输速率，计算第二节点和第一节点之间的绝对时间偏差 到第二工作波长，并且同步第二节点和第一节点之间的本地时间。 此外，公开了时间同步系统和节点装置。