公开(公告)号：US20230100191A1

公开(公告)日：2023-03-30

申请号：US17949553

申请日：2022-09-21

Applicant: Nokia Solutions and Networks Oy

Inventor： Yannick LEFEVRE ,  Wouter LANNEER ,  Werner COOMANS

IPC: H04Q11/00 ,  H04J14/02

Abstract: The method includes sending a first frame of a first modulation format that is suitable for a first group of receivers before sending a second frame of a second modulation format that is suitable for a second group of receivers, wherein the first modulation format is a higher modulation format than the second modulation format, and wherein the method further includes inserting into the first frame at least one symbol of the second modulation format at at least one outer edge of the first frame.

公开(公告)号：US20220271979A1

公开(公告)日：2022-08-25

申请号：US17670889

申请日：2022-02-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Wouter LANNEER ,  Yannick LEFEVRE ,  Paschalis TSIAFLAKIS ,  Werner COOMANS

IPC: H04L25/03 ,  H04L25/02

Abstract: The present disclosure relates to an equalizer training unit for deriving equalization parameters for compensating data-dependent distortion in received samples by use of a training sequence including a sequence p>1 times and cyclically comprising N sub-sequences of respective combinations of L time-domain symbols of a modulation scheme, wherein the N sub-sequences are cyclically arranged in a selected order and such that L−1 symbols of a respective sub-sequence overlap with symbols in the preceding and following sub-sequences. The present disclosure further relates to a training sequence generator unit for generative the training sequence and an equalizer employing the equalizer training unit.

公开(公告)号：US20190052311A1

公开(公告)日：2019-02-14

申请号：US15671292

申请日：2017-08-08

Applicant: Nokia Solutions and Networks OY

Inventor： Rosanah MURUGESU ,  Hungkei CHOW ,  Werner COOMANS

IPC: H04B3/23 ,  H04B3/21 ,  H04L5/14 ,  H04L25/03

Abstract: In an example embodiment, a full duplex transceiver includes an analog-to-digital converter (ADC), at least one processor, a first digital-to-analog converter (DAC) and an amplifier. The ADC is configured to convert an analog first signal to a digital first signal, the analog first signal being based on a transmitted signal from the transceiver and a received signal from a far-end transceiver. The at least one processor is configured to determine pre-distortion compensation coefficients using the digital first signal and a first input signal and generate a pre-distorted compensated input signal based on the pre-distortion compensation coefficients. The first DAC is configured to convert the pre-distortion compensated input signal to an analog input signal. The amplifier is configured to amplify the analog input signal to a subsequent transmit signal.

公开(公告)号：US20250016484A1

公开(公告)日：2025-01-09

申请号：US18762932

申请日：2024-07-03

Applicant: Nokia Solutions and Networks Oy

Inventor： Paschalis TSIAFLAKIS ,  Koen DE SCHEPPER ,  Werner COOMANS

IPC: H04Q11/00

Abstract: In one embodiment, an optical line terminal, OLT, is configured to communicate in a passive optical network with optical network units, ONUs, that respectively comprise one or more transmission queues; wherein the OLT includes a dynamic bandwidth allocation, DBA, engine configured to allocate recurrent transmission opportunities to the respective transmission queues for transmitting packets from the respective transmission queues to the OLT; wherein at least one of the ONUs includes a L4S transmission queue for transmitting L4S packets with at most a service latency and at least a service bandwidth; and wherein the DBA engine is further configured to perform, identifying a L4S transmission queue based on a L4S traffic descriptor parameter provisioned within the DBA engine.

公开(公告)号：US20240292133A1

公开(公告)日：2024-08-29

申请号：US18589560

申请日：2024-02-28

Applicant: Nokia Solutions and Networks Oy

Inventor： Michiel VERPLAETSE ,  Werner COOMANS

IPC: H04Q11/00

CPC classification number: H04Q11/0067 ,  H04Q2011/0086

Abstract: Example embodiments describe an optical line terminal (OLT) configured to communicate in a point-to-multipoint optical network with optical network units (ONUs); where upstream burst signals originating from one or more ONUs can be received by the OLT at any time during a time window. The OLT is configured to perform, during the time window, initiating a tuning cycle by starting the tuning of one or more burst receiver components within the OLT. The OLT is further configured to perform, if detecting a burst signal within a first period, extending the tuning cycle by a second period to continue the tuning of the one or more burst receiver components. The OLT is further configured to perform, if detecting at least pattern within the second period, extending the tuning cycle to decode the burst signal; else, terminating the tuning cycle by initiating a next tuning cycle.