公开(公告)号：US20210185418A1

公开(公告)日：2021-06-17

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：US20210250100A1

公开(公告)日：2021-08-12

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.