公开(公告)号：US11038617B2

公开(公告)日：2021-06-15

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 ,  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 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：US10516923B2

公开(公告)日：2019-12-24

申请号：US16020888

申请日：2018-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gang Zheng ,  Xifeng Wan

IPC: H04Q11/00 ,  H04B10/25

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：US10284298B2

公开(公告)日：2019-05-07

申请号：US15635992

申请日：2017-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haixiong Liu ,  Gang Zheng ,  Xifeng Wan ,  Dongsheng Yue

IPC: H04B10/00 ,  H04B10/27 ,  H04B10/66 ,  H04J14/00

Abstract: Embodiments of the present invention disclose a method for awaking an optical network unit in a passive optical network, including: receiving, by an optical line terminal OLT, a service packet corresponding to an ONU in an energy-saving mode, where the service packet carries a packet feature, and the packet feature indicates a service type of the service packet; detecting, by the OLT, the packet feature of the service packet; and when the packet feature of the service packet is a preset packet feature of needing to awake the ONU, awaking, by the OLT, the ONU in the energy-saving mode. According to the technical solutions provided in the embodiments of the present invention, an ONU can be awoken from an energy-saving mode in time when a traffic rate at an initial service stage is small, and a high QoS requirement of a service is met.