Systems and methods for asymmetrical cyclic prefixes in RFoG transmissions

    公开(公告)号:US10581654B2

    公开(公告)日:2020-03-03

    申请号:US16041415

    申请日:2018-07-20

    摘要: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.

    SYSTEMS AND METHODS FOR MANAGING A CONTROL CHANNEL IN A COMMUNICATION NETWORK

    公开(公告)号:US20200092034A1

    公开(公告)日:2020-03-19

    申请号:US16575208

    申请日:2019-09-18

    发明人: Douglas D. Jones

    IPC分类号: H04L1/00 H04L12/28 H04L5/00

    摘要: A method for managing a control channel in a communication network includes (1) receiving, at a control subsystem, first status information from a network device, (2) comparing, at the control subsystem, the first status information to a first threshold condition, and (3) in response to the first status information meeting the first threshold condition, causing a first control channel in the communication network to move from a first location in radio-frequency spectrum to a second location in radio-frequency spectrum. Another method for managing a control channel in a communication network includes (1) receiving, at a control subsystem, a first signal from a network device, and (2) in response to receiving the first signal, causing a first control channel in the communication network to move from a first location in radio-frequency spectrum to a second location in radio-frequency spectrum.

    SYSTEMS AND METHODS FOR ASYMMETRICAL DIGITAL PREFIX TRANSMISSIONS

    公开(公告)号:US20220239537A1

    公开(公告)日:2022-07-28

    申请号:US17717571

    申请日:2022-04-11

    摘要: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.

    Systems and methods for asymmetrical cyclic prefixes in RFoG transmissions

    公开(公告)号:US11303486B2

    公开(公告)日:2022-04-12

    申请号:US16806969

    申请日:2020-03-02

    摘要: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.

    SYSTEMS AND METHODS FOR ASYMMETRICAL CYCLIC PREFIXES IN RFoG TRANSMISSIONS

    公开(公告)号:US20190028310A1

    公开(公告)日:2019-01-24

    申请号:US16041415

    申请日:2018-07-20

    摘要: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.