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公开(公告)号：US11764902B2
公开(公告)日：2023-09-19
申请号：US17470293
申请日：2021-09-09
Applicant: Nokia Solutions and Networks Oy
Inventor： Yannick Lefevre , Adriaan de Lind van Wijngaarden , Jochen Maes , Vincent Houtsma , Doutje Van Veen , Amitkumar Mahadevan , Michaël Fivez
IPC: H04L1/00 , H03M13/00 , H04B10/516 , H04B10/60
CPC classification number: H04L1/0068 , H03M13/6362 , H04B10/516 , H04B10/60 , H04L1/0041 , H04L1/0045
Abstract: Various example embodiments for supporting forward error correction (FEC) in a communication system are presented. Various example embodiments for supporting FEC in a communication system may include the selection of a FEC setting for a communication channel from a transmitter to a receiver, e.g., the selection of a FEC setting for a communication channel, the selection of a FEC setting for a data burst sent over a communication channel, the selection of a FEC setting for a portion of a data burst sent over a communication channel, switching between FEC settings for different portions of a data burst over a communication channel, or the like, as well as various combinations thereof.
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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.
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公开(公告)号：US20210359830A1
公开(公告)日：2021-11-18
申请号：US17388739
申请日：2021-07-29
Applicant: Nokia Solutions and Networks Oy
Inventor： Jochen Maes
Abstract: The present invention discloses a method for configuring an operation mode of a remote transceiver unit connected to an access node via a communication line, the remote transceiver unit being operable in at least two operation modes: a Time Division Duplex, TDD, mode and a full duplex, FDX, mode; the method comprising, by the access node: a) obtaining a channel characteristic derived from channel measurements performed over the communication line, b) determining the operation mode of the remote transceiver unit as the FDX mode or the TDD mode based on the channel characteristic; c) transmitting an indication indicating the determined operation mode to the remote transceiver unit.
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公开(公告)号：US20200162395A1
公开(公告)日：2020-05-21
申请号：US16594492
申请日：2019-10-07
Applicant: Nokia Solutions and Networks OY
Inventor： Bart Pauwels , Yannick Lefevre , Jochen Maes
IPC: H04L12/823 , H04L12/861 , H04L12/851 , H04L29/06
Abstract: Example embodiments describe a transmitter including data encapsulation circuitry configured to encapsulate data packets into Data Transport Units, DTUs, for further transmission over a communication medium. The data packets have respective Quality of Service, QoS, tolerances.The data encapsulation circuitry is configured to delay transmission of first data packets with a lower QoS tolerance and to group the first data packets in a subset of DTUs available for transportation of the first data packets.
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公开(公告)号：US20190386776A1
公开(公告)日：2019-12-19
申请号：US16440072
申请日：2019-06-13
Applicant: Nokia Solutions and Networks Oy
Inventor： Yannick Lefevre , Werner Coomans , Jochen Maes
Abstract: A method is proposed for encoding DTUs (30) in a transmitter (111; 211) for further transmission to a receiver (212; 112). Communications from the transmitter to the receiver alternate between first time sub-frames (22; 24) comprising data symbols of a first type (D2; U2) having a first data payload capacity (NDSC,MIN), and second time sub-frames (21; 23) comprising data symbols of a second type (D1; U1) having a second data payload capacity (NDSC,MAX) greater than the first data payload capacity. The method comprises encoding individual DTUs into Q block-interleaved codewords (40) for protection against communication errors, Q denoting a positive integer value; obtaining scheduling information (txsch_info) as to the types of data symbols over which the encoded DTUs (50) are to be conveyed; and enabling or disabling the further block-interleaving of a group of M consecutive encoded DTUs (60) based on the scheduling information for the respective M consecutive encoded DTUs, M denoting a positive integer value greater than one.The present invention also relates to a transmitter (111; 211) for encoding DTUs according to the method, and to a receiver (112; 212) for decoding the so-encoded DTUs.
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Patent Agency Ranking
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
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.
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公开(公告)号：US11196676B2
公开(公告)日：2021-12-07
申请号：US16594492
申请日：2019-10-07
Applicant: Nokia Solutions and Networks OY
Inventor： Bart Pauwels , Yannick Lefevre , Jochen Maes
IPC: H04L12/823 , H04L12/851 , H04L12/861 , H04L29/06 , H04L12/64 , H04L12/875 , H04L12/863 , H04W28/24
Abstract: Example embodiments describe a transmitter including data encapsulation circuitry configured to encapsulate data packets into Data Transport Units, DTUs, for further transmission over a communication medium. The data packets have respective Quality of Service, QoS, tolerances. The data encapsulation circuitry is configured to delay transmission of first data packets with a lower QoS tolerance and to group the first data packets in a subset of DTUs available for transportation of the first data packets.
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公开(公告)号：US11095423B2
公开(公告)日：2021-08-17
申请号：US16376175
申请日：2019-04-05
Applicant: Nokia Solutions and Networks Oy
Inventor： Jochen Maes
Abstract: The present invention discloses a method for configuring an operation mode of a remote transceiver unit connected to an access node via a communication line, the remote transceiver unit being operable in at least two operation modes: a Time Division Duplex, TDD, mode and a full duplex, FDX, mode; the method comprising, by the access node: a) obtaining a channel characteristic derived from channel measurements performed over the communication line, b) determining the operation mode of the remote transceiver unit as the FDX mode or the TDD mode based on the channel characteristic; c) transmitting an indication indicating the determined operation mode to the remote transceiver unit.
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公开(公告)号：US10992341B2
公开(公告)日：2021-04-27
申请号：US16442952
申请日：2019-06-17
Applicant: Nokia Solutions and Networks OY
Inventor： Paschalis Tsiaflakis , Jochen Maes , Werner Coomans , Carl Nuzman
Abstract: A multi-line digital transceiver configured to use low-complexity beamforming on at least some tones to boost effective SNR values for selected subscriber lines. In an example embodiment, the beamforming coefficients can be restricted to one-bit values or two-bit values, e.g., such that the corresponding beamforming computations can be implemented using only sign changes, swaps of the real and imaginary parts, and/or zeroing of some values, and without invoking any full-precision hardware multiplication operations. At least some embodiments can be run on a significantly simpler and/or less powerful vectoring engine than conventional beamforming solutions while still being able to provide nearly optimal beamforming SNR gains. In some embodiments, additional scaling by powers of two may be applied to at least some signals contributing to the beamforming, e.g., to satisfy power constraints for some or all of the subscriber lines.
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公开(公告)号：US11979191B2
公开(公告)日：2024-05-07
申请号：US17701046
申请日：2022-03-22
Applicant: Nokia Solutions and Networks Oy
Inventor： Jochen Maes , Yannick Lefevre
IPC: H04B10/272 , H04J14/02 , H04L5/00 , H04Q11/00
CPC classification number: H04B10/272 , H04J14/0282 , H04L5/0044 , H04Q11/0067
Abstract: An apparatus grouping data units for optical network units into groups of Encapsulation Method, EM, frame(s), wherein a respective group of EM frame(s) include data units addressed to a respective subset of ONUs, generating, based on the groups of EM frame(s), a Framing Sublayer payload including at least one specific frame, wherein, the specific frame includes a length indicator determined in relation to the length of the group(s) of EM frame(s) that is(are) directly following the specific frame and is(are) addressed to at least one subset of ONUs; instructing the ONUs assigned to at least one of said at least one subset to process the EM frame directly following the specific frame, and instructing the ONUs not assigned to the at least one subset to process the EM frame that is indicated by the length indicator of the specific frame; and transmitting the Framing Sublayer payload to the ONUs.
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