公开(公告)号：US20180367246A1

公开(公告)日：2018-12-20

申请号：US15623015

申请日：2017-06-14

Applicant: Nokia Solutions and Networks OY

Inventor： Joseph K. Kakande

IPC: H04L1/00 ,  G06N7/00

CPC classification number: H04L1/0054 ,  G06N7/005 ,  H04L1/0042 ,  H04L1/0057

Abstract: A shaping encoder configured to generate a stream of output bit-words, wherein different bit-word values have different respective rates of occurrence to cause the optical transmitter connected to the shaping encoder to transmit constellation symbols of relatively high energy less frequently than constellation symbols of relatively low energy. The stream of output bit-words is self-referencing in that it encodes one of the input bitstreams applied to the shaping encoder in one or more designated bits of the output bit-words and is generated using a dither stream that can be recovered by the shaping decoder solely based on those one or more designated bits. As a result, some of the circuitry used in the shaping encoder at the transmitter and in the shaping decoder at the receiver can be identical, which can advantageously be used, e.g., to reduce the production costs.

公开(公告)号：US20190312674A1

公开(公告)日：2019-10-10

申请号：US16437391

申请日：2019-06-11

Applicant: Nokia Solutions and Networks OY

Inventor： Joseph K. Kakande

IPC: H04L1/00 ,  G06N7/00

Abstract: A shaping encoder configured to generate a stream of output bit-words, wherein different bit-word values have different respective rates of occurrence to cause the optical transmitter connected to the shaping encoder to transmit constellation symbols of relatively high energy less frequently than constellation symbols of relatively low energy. The stream of output bit-words is self-referencing in that it encodes one of the input bitstreams applied to the shaping encoder in one or more designated bits of the output bit-words and is generated using a dither stream that can be recovered by the shaping decoder solely based on those one or more designated bits. As a result, some of the circuitry used in the shaping encoder at the transmitter and in the shaping decoder at the receiver can be identical, which can advantageously be used, e.g., to reduce the production costs.

公开(公告)号：US10355821B2

公开(公告)日：2019-07-16

申请号：US15623015

申请日：2017-06-14

Applicant: Nokia Solutions and Networks OY

Inventor： Joseph K. Kakande

IPC: H04L5/12 ,  H04L1/00 ,  G06N7/00

Abstract: A shaping encoder configured to generate a stream of output bit-words, wherein different bit-word values have different respective rates of occurrence to cause the optical transmitter connected to the shaping encoder to transmit constellation symbols of relatively high energy less frequently than constellation symbols of relatively low energy. The stream of output bit-words is self-referencing in that it encodes one of the input bitstreams applied to the shaping encoder in one or more designated bits of the output bit-words and is generated using a dither stream that can be recovered by the shaping decoder solely based on those one or more designated bits. As a result, some of the circuitry used in the shaping encoder at the transmitter and in the shaping decoder at the receiver can be identical, which can advantageously be used, e.g., to reduce the production costs.