公开(公告)号：US20210266090A1

公开(公告)日：2021-08-26

申请号：US17318334

申请日：2021-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun Zhang ,  Xifeng Wan ,  Gang Zheng

IPC: H04J14/02 ,  H04Q11/00

Abstract: 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.

公开(公告)号：US11374674B2

公开(公告)日：2022-06-28

申请号：US16988066

申请日：2020-08-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huafeng Lin ,  Jinrong Yin ,  Dianbo Zhao ,  Xifeng Wan ,  Shiwei Nie ,  Gang Zheng ,  Zhijing Luo ,  Xiaofei Zeng ,  Jun Luo

IPC: H04J14/02

Abstract: The present disclosure relates to passive optical network (PON) systems, an optical line terminal (OLT), and an optical network unit (ONU). One example PON system includes an OLT and at least two ONUs, and the OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant which is used to control the ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU.

公开(公告)号：US20160173479A1

公开(公告)日：2016-06-16

申请号：US15048564

申请日：2016-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun Zhang ,  Xifeng Wan

IPC: H04L29/06 ,  H04B10/27 ,  H04B10/85

CPC classification number: H04L63/08 ,  H04B10/27 ,  H04B10/272 ,  H04B10/85 ,  H04L63/0876

Abstract: A terminal authentication method in a passive optical network (PON) which includes, receiving, by the optical line terminal (OLT), a registration request that carries an authentication parameter and is sent by the optical network terminal (ONT), where the authentication parameter is used to identify the ONT of a same type, and determining, by the OLT, that the authentication parameter sent by the ONT matches the authentication parameter preconfigured on the OLT, and authorizing that the ONT is an authorized terminal. Using the foregoing technical solutions, an OLT may be, during optical network unit (ONU) registration and authentication, plug-and-play, without needing to manually input authentication information, which improves automation and flexibility of authentication.

Abstract translation: 一种无源光网络（PON）中的终端认证方法，包括：由光线路终端（OLT）接收携带认证参数并由光网络终端（ONT）发送的注册请求，其中认证参数 用于识别相同类型的ONT，并且由OLT确定由ONT发送的认证参数与OLT上预先配置的认证参数匹配，并授权ONT是授权终端。 使用上述技术方案，OLT可以在光网络单元（ONU）注册和认证中即插即用，而不需要手动输入认证信息，这提高了认证的自动化和灵活性。

公开(公告)号：US20240014896A1

公开(公告)日：2024-01-11

申请号：US18472596

申请日：2023-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huafeng Lin ,  Xifeng Wan ,  Shu Li

IPC: H04B10/071

CPC classification number: H04B10/071

Abstract: This application discloses an optical splitting apparatus, an optical splitting system, a passive optical network, and an optical fiber fault detection method. The optical splitting apparatus includes a first optical splitting unit, a plurality of first optical path processing units, and a second optical path processing unit. The first optical splitting unit includes a first port and a plurality of second ports, and the first port is separately connected to the plurality of second ports.

公开(公告)号：US20180316992A1

公开(公告)日：2018-11-01

申请号：US16020888

申请日：2018-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gang Zheng ,  Xifeng Wan

IPC: H04Q11/00

CPC classification number: H04Q11/0067 ,  H04B10/25 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0088

Abstract: A bandwidth assignment method and apparatus, and an optical network system are disclosed. The method includes: setting a maximum bandwidth grant size and a maximum burst bandwidth grant size for an optical network unit; receiving a bandwidth assignment request of the optical network unit; and when an optical line terminal determines, according to the bandwidth assignment request, that a bandwidth grant size requested to be assigned in the bandwidth request is greater than the set maximum bandwidth grant size and less than or equal to the set maximum burst bandwidth grant size, determining, by the optical line terminal, in response to the request, to assign the requested bandwidth grant size to the optical network unit. Therefore, timely and accurate transmission of massive uplink burst data traffic is ensured, a transmission delay is reduced, service performance is improved, and system bandwidth utilization is greatly increased.

公开(公告)号：US11652564B2

公开(公告)日：2023-05-16

申请号：US17318334

申请日：2021-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun Zhang ,  Xifeng Wan ,  Gang Zheng

IPC: H04J14/02 ,  H04Q11/00

CPC classification number: H04J14/0239 ,  H04J14/0223 ,  H04J14/0249 ,  H04Q11/0067 ,  H04J14/0245 ,  H04Q2011/0064 ,  H04Q2011/0088

Abstract: 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.

公开(公告)号：US10756841B2

公开(公告)日：2020-08-25

申请号：US16418886

申请日：2019-05-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huafeng Lin ,  Jinrong Yin ,  Dianbo Zhao ,  Xifeng Wan ,  Shiwei Nie ,  Gang Zheng ,  Zhijing Luo ,  Xiaofei Zeng ,  Jun Luo

IPC: H04J14/02

Abstract: The present disclosure relates to passive optical network (PON) systems, optical line terminals (OTLs), and optical network units (ONUs). One example PON system includes an OLT and at least two ONUs. The OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant used to control each ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU, where a registration function is disabled on the first upstream channel, and enabled on the second upstream channel.

公开(公告)号：US20180191456A1

公开(公告)日：2018-07-05

申请号：US15862285

申请日：2018-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun Zhang ,  Xifeng Wan ,  Gang Zheng

IPC: H04J14/02

CPC classification number: H04J14/0239 ,  H04J14/0223 ,  H04J14/0245 ,  H04J14/0249 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0088

Abstract: 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.

公开(公告)号：US11916803B2

公开(公告)日：2024-02-27

申请号：US17660326

申请日：2022-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Chi ,  Xifeng Wan ,  Yiming Wang

IPC: H04L47/62 ,  H04L47/2483 ,  H04L47/2491

CPC classification number: H04L47/621 ,  H04L47/2483 ,  H04L47/2491

Abstract: A method includes: mapping a to-be-transmitted service flow to a virtual connection based on a mapping relationship between an identifier of the to-be-transmitted service flow and an identifier of the virtual connection; mapping the to-be-transmitted service flow to a virtual bearer based on a mapping relationship between the identifier of the virtual connection and an identifier of the virtual bearer; and mapping the to-be-transmitted service flow to a virtual bearer queue based on a mapping relationship between a quality of service characteristic identifier of the to-be-transmitted service flow and an identifier of the virtual bearer queue in the virtual bearer, to transmit the to-be-transmitted service flow to an OLT.

公开(公告)号：US20220247692A1

公开(公告)日：2022-08-04

申请号：US17660326

申请日：2022-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Chi ,  Xifeng Wan ,  Yiming Wang

IPC: H04L47/62 ,  H04L47/2483 ,  H04L47/2491

Abstract: A method includes: mapping a to-be-transmitted service flow to a virtual connection based on a mapping relationship between an identifier of the to-be-transmitted service flow and an identifier of the virtual connection; mapping the to-be-transmitted service flow to a virtual bearer based on a mapping relationship between the identifier of the virtual connection and an identifier of the virtual bearer; and mapping the to-be-transmitted service flow to a virtual bearer queue based on a mapping relationship between a quality of service characteristic identifier of the to-be-transmitted service flow and an identifier of the virtual bearer queue in the virtual bearer, to transmit the to-be-transmitted service flow to an OLT.