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：US11265083B2

公开(公告)日：2022-03-01

申请号：US17136809

申请日：2020-12-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Jochen Maes ,  Robert Borkowski ,  Rene Bonk

IPC: H04B10/516 ,  H04B10/61 ,  H04L25/03

Abstract: An apparatus for signal modulation in a point-to-multipoint optical network is configured to modulate a single-wavelength carrier wave before distribution towards optical receivers of a first type adapted for intensity detection and a second type adapted for optical field detection. The apparatus includes a first module configured to modulate the carrier wave by varying the intensity of the carrier wave to represent data intended for the first type of receivers, and by controlling the phase and/or polarization of the carrier wave during selected periods. The apparatus includes a second module configured to modulate the carrier wave by varying the phase and/or polarization of the carrier wave to represent data intended for the second type of receivers, and by varying the intensity of the carrier wave during selected periods.

公开(公告)号：US20200296487A1

公开(公告)日：2020-09-17

申请号：US16794644

申请日：2020-02-19

Applicant: Nokia Solutions and Networks Oy

Inventor： Rene Bonk ,  Robert Borkowski

IPC: H04Q11/00 ,  H04B10/079

Abstract: A device for controlling upstream transmission of bursts from optical network units (ONUs) to an optical line termination (OLT) in a passive optical network (PON), wherein the upstream transmission is organized in time intervals that form part of an upstream timeframe, includes obtain respective optical power levels received at the OLT for the ONUs; obtain respective extinction ratios at the OLT for the ONUs; obtain respective transmission wavelengths for the ONUs; distinguish pairable ONUs and non-pairable ONUs at least based on the wavelengths; pair the pairable ONUs based on the optical power levels and/or the extinction ratios to generating one or plural subsets of paired ONUs; allow paired ONUs that belong to a same subset to simultaneously transmit bursts within a time interval.

公开(公告)号：US11350191B2

公开(公告)日：2022-05-31

申请号：US17096286

申请日：2020-11-12

Applicant: Nokia Solutions and Networks Oy

Inventor： Werner Van Hoof ,  Rene Bonk ,  Robert Borkowski

IPC: H04Q11/00 ,  H04B10/2507

Abstract: Various example embodiments of the present disclosure relates to a physical layer, PHY, circuitry for an optical line terminal, OLT, the PHY circuitry being configured to receive a control signal including an identification of a transmitting ONT for pre-loading an equalization configuration associated with the identification of the transmitting ONT. Other example embodiments relate to a medium access control, MAC, circuitry for OLT, the MAC circuitry being configured to determine an upstream allocation map for optical network terminals, ONTs, and to generate a control signal for a PHY circuitry including synchronization information for receiving upstream optical signal bursts from a transmitting ONT and an identification of the transmitting ONT based on the upstream allocation map. Further example embodiments related to an optical line terminal, OLT, and a method therefor.

公开(公告)号：US11039230B2

公开(公告)日：2021-06-15

申请号：US16794644

申请日：2020-02-19

Applicant: Nokia Solutions and Networks Oy

Inventor： Rene Bonk ,  Robert Borkowski

IPC: H04Q11/00 ,  H04B10/079

Abstract: A device for controlling upstream transmission of bursts from optical network units (ONUs) to an optical line termination (OLT) in a passive optical network (PON), wherein the upstream transmission is organized in time intervals that form part of an upstream timeframe, includes obtain respective optical power levels received at the OLT for the ONUs; obtain respective extinction ratios at the OLT for the ONUs; obtain respective transmission wavelengths for the ONUs; distinguish pairable ONUs and non-pairable ONUs at least based on the wavelengths; pair the pairable ONUs based on the optical power levels and/or the extinction ratios to generating one or plural subsets of paired ONUs; allow paired ONUs that belong to a same subset to simultaneously transmit bursts within a time interval.