公开(公告)号：US11770188B2

公开(公告)日：2023-09-26

申请号：US17540665

申请日：2021-12-02

Applicant: Nokia Solutions and Networks Oy

Inventor： Paul Henri Marie Cautereels ,  Carl Julien Godelieve Mertens ,  Michael Fivez ,  Rene Bonk

IPC: H04B10/079 ,  H04B10/2575

CPC classification number: H04B10/07953 ,  H04B10/07955 ,  H04B10/25752

Abstract: The present disclosure relates to an optical line terminal, OLT, which is enabled to range optical network units, ONUs, in a point-to-multipoint optical network by detecting interference burst sequences transmitted by one or more joining ONUs during transmission of upstream data traffic from transmitting ONUs. The present disclosure further relates to an optical network unit, ONU, which is enabled to transmit, at a selected transmission time, an interference burst sequence including a sequence of pulses allowing the OLT to identify the ONU as a joining ONU.

公开(公告)号：US11388494B2

公开(公告)日：2022-07-12

申请号：US17136766

申请日：2020-12-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Yannick Lefevre ,  Paul Henri Marie Cautereels ,  Jochen Maes

IPC: H04Q11/00 ,  H04L1/00

Abstract: According to example embodiments, the OLT includes at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the OLT to perform grouping data units for the ONUs in groups, wherein a group includes data units for a subset of the ONUs, encoding the groups of data units into respective sets of at least one codeword, interleaving the at least one codeword of the respective sets thereby obtaining a stream of codewords, and sequentially transmitting the stream of codewords to the ONUs.