公开(公告)号：US20230179896A1

公开(公告)日：2023-06-08

申请号：US18162457

申请日：2023-01-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Andy Shen ,  Frank Effenberger ,  Yuanqiu Luo

IPC: H04Q11/00

CPC classification number: H04Q11/0067 ,  H04Q11/0066

Abstract: A method implemented by an optical network unit (ONU) in a passive optical network (PON). The method includes receiving an encoded downstream (DS) signal from an optical line terminal (OLT), searching for a physical synchronization sequence (PSync) pattern in all possible alignments for all possible OLT bit-interleaving modes within the downstream signal, and transitioning to a pre-synchronization state once the PSync pattern has been found.

公开(公告)号：US20200382241A1

公开(公告)日：2020-12-03

申请号：US16995995

申请日：2020-08-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Huaiyu Zeng ,  Frank Effenberger ,  Yuanqiu Lou ,  Andy Shen

IPC: H04L1/08 ,  H04L1/00 ,  H04Q11/00 ,  H04J3/16

Abstract: A communication method and device are provided for communication in a point-to-multi-point communication network. A communication method includes receiving, by a node of a plurality of multi-point nodes, a transmission frame comprising a header including a repetition information and a data section comprising multiple modulation symbols, with at least two repeated modulation symbols that are repeated to represent a first modulation symbol; extracting, by the node, the repetition information of the header; recovering, by node, the amplitude of each modulation symbol of the at least two repeated modulation symbols; and combining, by the node, the amplitudes of the at least two repeated modulation symbols, based on the repetition information, to reconstruct the first modulation symbol represented by the at least two repeated modulation symbols.