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    Cable modem and digital compensation for switchable analog filter to assist echo cancellation in full duplex cable modem
    11.
    发明申请
    Cable modem and digital compensation for switchable analog filter to assist echo cancellation in full duplex cable modem 审中-公开

    公开(公告)号：US20200162230A1

    公开(公告)日：2020-05-21

    申请号：US16601611

    申请日：2019-10-15

    Applicant: Intel Corporation

    Inventor： Boaz Kol ,  Noam Tal ,  Shaul Shulman ,  Thushara Hewavithana

    IPC: H04L5/14 ,  H04B3/21 ,  H04L27/00 ,  H04L27/148

    Abstract: A cable modem supporting full duplex (FDX) operations. The cable modem includes a transmit circuitry configured to process a transmit signal and a receive circuitry configured to process a receive signal. The receive circuitry includes a switchable analog filter configured to filter the receive signal. The switchable analog filter is configurable for different passband frequencies. The receive circuitry also includes a digital compensation filter configured to compensate a difference in frequency response in a specific frequency band due to switching of the switchable analog filter for a different passband frequency. The cable modem also includes an adjacent channel interference (ACI) cancellation filter and an adjacent leakage interference (ALI) cancellation filter. A digital compensation filter is also used in processing the ACI cancellation signal and the ALI cancellation signal to impose or compensate the difference in frequency response due to the switchable analog filter switching.

    CONFIGURABLE CONSTELLATION MAPPING TO CONTROL SPECTRAL EFFICIENCY VERSUS SIGNAL-TO-NOISE RATIO
    12.
    发明申请
    CONFIGURABLE CONSTELLATION MAPPING TO CONTROL SPECTRAL EFFICIENCY VERSUS SIGNAL-TO-NOISE RATIO 审中-公开

    公开(公告)号：US20190173609A1

    公开(公告)日：2019-06-06

    申请号：US16177219

    申请日：2018-10-31

    Applicant: Intel Corporation

    Inventor： Bernard Arambepola ,  Noam Tal ,  Sahan S. Gamage ,  Thushara Hewavithana ,  Shaul Shulman

    IPC: H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04L5/00

    Abstract: Mixed mode constellation mapping to map a data block to a block of sub-carriers based on a configurable set of one or more constellation mapping schemes, and corresponding mixed mode least likelihood ratio (LLR) de-mapping based on the configurable set of one or more modulation schemes. The set may be configurable to include multiple modulation schemes to provide to a SEvSNR measure that is a non-weighted or weighted average of SEvSNR measures of the multiple modulation schemes. Mixed mode constellation mapping may be useful be configurable to control spectral efficiency versus SNR (SEvSNR) over a range of SNR with relatively fine SNR granularity, and may be configurable to control SEvSNR over a range of SNR at a fixed FEC code rate, which may include a highest available or highest permitted code rate.

    CONFIGURABLE CONSTELLATION MAPPING TO CONTROL SPECTRAL EFFICIENCY VERSUS SIGNAL-TO-NOISE RATIO
    14.
    发明申请
    CONFIGURABLE CONSTELLATION MAPPING TO CONTROL SPECTRAL EFFICIENCY VERSUS SIGNAL-TO-NOISE RATIO 有权

    公开(公告)号：US20220021475A1

    公开(公告)日：2022-01-20

    申请号：US17383698

    申请日：2021-07-23

    Applicant: Intel Corporation

    Inventor： Bernard Arambepola ,  Noam Tal ,  Sahan S. Gamage ,  Thushara Hewavithana ,  Shaul Shulman

    IPC: H04L1/00 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26

    Abstract: Mixed mode constellation mapping to map a data block to a block of sub-carriers based on a configurable set of one or more constellation mapping schemes, and corresponding mixed mode least likelihood ratio (LLR) de-mapping based on the configurable set of one or more modulation schemes. The set may be configurable to include multiple modulation schemes to provide to a SEvSNR measure that is a non-weighted or weighted average of SEvSNR measures of the multiple modulation schemes. Mixed mode constellation mapping may be useful be configurable to control spectral efficiency versus SNR (SEvSNR) over a range of SNR with relatively fine SNR granularity, and may be configurable to control SEvSNR over a range of SNR at a fixed FEC code rate, which may include a highest available or highest permitted code rate.

    DOCSIS over passive optical network
    15.
    发明授权
    DOCSIS over passive optical network 有权

    公开(公告)号：US10608745B2

    公开(公告)日：2020-03-31

    申请号：US16328408

    申请日：2016-11-28

    Applicant: Intel Corporation

    Inventor： Shaul Shulman ,  Guy Ray ,  Amos Klimker ,  Avi Priev

    IPC: H04B10/27 ,  H04Q11/00 ,  H04B10/25 ,  H04L12/28

    Abstract: A system that utilizes data over cable service interface specification (DOCSIS) over passive optical networks is disclosed. An example system includes core system in a passive optical network (PON), comprising a memory; and one or more processors configured to generate a downlink (DL) data stream comprising optical signals, in compliance with a data over cable service interface specification (DOCSIS); and provide the optical signals containing DL data to a network component in the PON over an optical fiber coupled between the core system and the network component. In some embodiments, the core system is located at a head end equipment at the internet service provider's facility. However, in other embodiments, the core system can have a distributed architecture, with a part of the core system located at the internet service provider's facility and a different part of the core system located at a different location.

    DOCSIS OVER PASSIVE OPTICAL NETWORK
    16.
    发明申请
    DOCSIS OVER PASSIVE OPTICAL NETWORK 审中-公开

    公开(公告)号：US20190215071A1

    公开(公告)日：2019-07-11

    申请号：US16328408

    申请日：2016-11-28

    Applicant: Intel Corporation

    Inventor： Shaul Shulman ,  Guy Ray ,  Amos Klimker ,  Avi Priev

    IPC: H04B10/27

    CPC classification number: H04B10/27 ,  H04B10/25 ,  H04L12/2801 ,  H04L12/2856 ,  H04Q11/0067

    Abstract: A system that utilizes data over cable service interface specification (DOCSIS) over passive optical networks is disclosed. An example system includes core system in a passive optical network (PON), comprising a memory; and one or more processors configured to generate a downlink (DL) data stream comprising optical signals, in compliance with a data over cable service interface specification (DOCSIS); and provide the optical signals containing DL data to a network component in the PON over an optical fiber coupled between the core system and the network component. In some embodiments, the core system is located at a head end equipment at the internet service provider's facility. However, in other embodiments, the core system can have a distributed architecture, with a part of the core system located at the internet service provider's facility and a different part of the core system located at a different location.

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